Straight razor

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Thiers Issard Le Thiernois Sheffield silver steel, mirror-finished, singing, 5/8 inch blade, fully hollow ground, round-nose razor with decorated 24k gold-inlaid blade, fluted shank, double stabiliser, and double-pin, blonde horn scales Thiers Issard Le Thiernois Blonde Horn.jpg
Thiers Issard Le Thiernois Sheffield silver steel, mirror-finished, singing, 5/8 inch blade, fully hollow ground, round-nose razor with decorated 24k gold-inlaid blade, fluted shank, double stabiliser, and double-pin, blonde horn scales

A straight razor is a razor with a blade that can fold into its handle. [1] [2] They are also called open razors and cut-throat razors. [3] [4] [5] The predecessors of the modern straight razors include bronze razors, with cutting edges and fixed handles, produced by craftsmen from Ancient Egypt during the New Kingdom (1569 — 1081 BC). Solid gold and copper razors were also found in Ancient Egyptian tombs dating back to the 4th millennium BC.

Contents

The first steel-edged cutthroat razors were manufactured in Sheffield in 1680. By the late 1680s, early 1690s, razors with silver-covered handles along with other Sheffield-made products known as "Sheffield wares" were being exported to ports in the Gulf of Finland, approximately 1200 miles (1931 km) from Sheffield. From there, these goods were probably sent to Finland and even Russia. By 1740, Benjamin Huntsman was making straight razors complete with decorated handles and hollow-ground blades made from cast steel, using a process he invented. Huntsman's process was adopted by the French sometime later, albeit reluctantly at first due to nationalist considerations. In England, razor manufacturers were even more reluctant than the French to adopt Huntsman's steel-making process and only did so after they saw its success in France.

After their introduction in 1680, straight razors became the principal method of manual shaving for more than two hundred years, and remained in common use until the mid-20th century. [6] Straight razor production eventually fell behind that of the safety razor, which was introduced in the late 19th century and featured a disposable blade. Electric razors have also reduced the market share of the straight razors, especially since the 1950s. [5] [6] [7] A 1979 comparative study of straight and electric razors, performed by Dutch researchers, found that straight razors shave hair approximately 0.002 in. (0.05mm) shorter than electrics. [8]

Since 2012, production of straight razors has increased multifold. Straight razor sales are increasing globally and manufacturers have difficulty satisfying demand. [9] Sales started increasing since the product was featured in the 2012 James Bond film Skyfall and have remained high since. Straight razors are also perceived as a better value and a more sustainable and efficient product. [9] [10] Dovo in Germany reports that since a production low of less than 8,000 units per year in 2006, the company sells 3,000 units per month, [11] and has 110,000 orders with production lead time of three years. [9] [11] The increased sales have also led to an increase in the number of associated trades and artisans such as bladesmiths, leather craftsmen, and potters. [9]

Forums and outlets provide products, directions, and advice to straight razor users. Straight razor manufacturers exist in Europe, Asia, and North America. Antique straight razors are also actively traded. Straight razors require considerable skill to hone and strop, and require more care during shaving. [12] Straight razor design and use was once a major portion of the curriculum in barber colleges. [13]

History

Bronze razor with handle from Ancient Egypt during the New Kingdom (1569 -- 1081 BC) Razor LACMA M.80.198.24.jpg
Bronze razor with handle from Ancient Egypt during the New Kingdom (1569 — 1081 BC)

Various forms of razors were used throughout history, which are different in appearance but similar in use to modern straight razors. In prehistoric times clam shells, shark's teeth, and flint were sharpened and used for shaving. Drawings of such blades were found in prehistoric caves. Some tribes still use blades made of flint to this day. Excavations in Egypt have unearthed solid gold and copper razors in tombs dating back to the 4th millennium BC. The Roman historian Livy reported that the razor was introduced in ancient Rome in the 6th century BC by legendary king Lucius Tarquinius Priscus. Priscus was ahead of his time because razors did not come to general use until a century later. [7]

The first narrow-bladed folding straight razors were listed by a Sheffield, England manufacturer in 1680. [14] [15] [16] [17] [18] By the late 1680s, early 1690s, razors with silver-covered handles along with other Sheffield-made products known as "Sheffield wares" were being exported by John Spencer (1655–1729) of Cannon Hall, a wealthy landowner and industrialist, to ports in the Gulf of Finland, approximately 1200 miles (1931 km) from Sheffield. From there, these goods were probably sent to Finland and even Russia. [18] By 1740, Benjamin Huntsman was making straight razors complete with decorated handles and hollow-ground blades made from cast steel, using a process he invented. Huntsman's process was adopted by the French sometime later; albeit reluctantly at first due to nationalist sentiments. The English manufacturers were even more reluctant than the French to adopt the process and only did so after they saw its success in France. [7]

Thiers Issard Fox and Rooster 7/8" blade razor with a three-pin blonde buffalo horn handle. The blade is made of Sheffield silver steel. Thiers Issard Fox and Rooster.jpg
Thiers Issard Fox and Rooster 7/8" blade razor with a three-pin blonde buffalo horn handle. The blade is made of Sheffield silver steel.

Sheffield steel, a highly polished steel, also known as 'Sheffield silver steel' and famous for its deep gloss finish, is considered a superior quality steel and is still used to this day in France by such manufacturers as Thiers Issard. [19] After their introduction in 1680, straight razors became the principal method of manual shaving for more than two hundred years, and remained in common use until the mid-20th century. [6] Electric razors have also cut into the straight razor's market share, especially since the 1950s. [5] [6] [7]

A variant of the European straight-edge was developed by a brother of Ghezo and it was employed as a weapon by the Dahomey Amazons. This variant was significantly larger and carried over the shoulder. When folded, the razor measured about 24–30 inches long and it weighed over 20 pounds. When extended, the blade measured 4–5 feet. [20]

Straight razors eventually fell out of fashion. Their first challenger was manufactured by King C. Gillette: a double-edged safety razor with replaceable blades. These new safety razors did not require any serious tutelage to use. [12] The blades were extremely hard to sharpen, and were meant to be thrown away after one use, and rusted quickly if not discarded. They also required a smaller initial investment, although they cost more over time. [21] Despite its long-term advantages, the straight razor lost significant market share. As shaving became less intimidating and men began to shave themselves more, the demand for barbers providing straight razor shaves decreased. [6]

Since 2012, production of straight razors has increased multifold. Straight razor sales are increasing globally and manufacturers have difficulty satisfying demand. [9] Straight razor sales are increasing because they are perceived as a better value and more efficient product. [9] [10]

Dovo  [ de ] in Germany reports that since a production low of less than 8,000 units per year in 2006, the company sells 3,000 units per month, [11] and has 110,000 orders with production lead time of three years. [11] [9] The Dovo spokesman commented that around 2006, “we were producing less than 8,000 straight razors per year, The tradition of straight razor manufacturing had almost come to an end.” [9] Dovo explains, that after the 2012 James Bond film Skyfall , sales of straight razors increased multifold, and that "built into a wave of sustained overdemand that we are still riding today". [9] The increased sales have also led to an increase in the number of associated trades and artisans such as bladesmiths, leather craftsmen, and potters. [9]

Design criteria

The design of the straight razor is based on the grind of the blade, the width and length of the blade, the handle, which also affects the balance of the razor, the material of the blade, and the finish and degree of polish of the blade material. [22]

Straight grinds range from true wedge, through near wedge, quarter hollow, half hollow, full hollow, and extra hollow. As the grind gets more hollowed, the blade becomes more flexible and the edge more delicate, making it shave closer but require more skill in sharpening and use, and reducing its suitability for heavy beards. [23] [24]

Blades are usually categorised by grind, size, and blade shape.

Sizing of a standard straight razor is usually close to 3 inches of blade length, but this does vary. Blades are described by the depth from spine to edge, measured in eights of an inch. 3/8 is a very narrow razor mostly used for detail work, with 5/8 and 6/8 being the most commonly seen sizes. It is very rare to see old razors bigger than 8/8 however there are some out there at 10/8 or larger.

The other major factor is the point shape. The most common is the round or Dutch point, with the French point being fairly common. The square point is also known as an American point, and is more common on razors from the USA. There is also the Spanish point, Spike point, and Barber's Notch. [25]

Inexperienced users should use either the round point, or a razor with a muted toe (the very tip of the edge rounded slightly) as an unmuted square or spike is prone to nicking the skin of an Inexperienced shaver.


The "handle" on a straight razor is not a handle at all, but a protector to prevent the delicate edge being damaged when not in use, and to prevent accidental cuts from the sharp blade.

Construction is in the form of two scales, held by the pivot pin through the tang, and pinned through a wedge at the other end. Scales are thin as they must be flexible, typical scales are 2-3mm thick and usually made from some form of synthetic (nowadays usually acrylic, but on older razors celluloid, Bakelite, xylonite, and others are common), bone, horn, or ivory on older razors. Some cheaper razors had compressed leather scales, and a few are found with thin metal scales or wooden scales.

The blade material is usually a high carbon steel or a stainless steel. Traditionally, carbon steel was used, but stainless steels are popular in modern times due to the ease of maintenance. [26]

Parts description

Parts of a razor Parts of a straight razor.jpg
Parts of a razor

The parts of a straight razor and their function are described as follows: the narrow end of the blade rotates on a pin called the pivot, between two protective pieces called the scales or handle. The upward curved metal end of the narrow part of the blade beyond the pivot is called the tang and acts as a lever to help raise the blade from the handle. One or two fingers resting on the tang also help stabilize the blade while shaving. The narrow support piece between the tang and the main blade is called the shank, [27] but this reference is often avoided because it can be confusing since the shank is also referred to as tang. [28] The shank sometimes features decorations and the stamp of the brand. The top side and the underside of the shank can sometimes exhibit indentations known as fluting, or jimps for a more secure grip. [19] The curved lower part of the main blade from the shank to the cutting edge is called the shoulder. [29] The point where the shoulder joins the cutting edge is called the heel. [30] The endpoint of the cutting edge at the front of the blade, opposite to the heel, is called the toe.

A Solingen straight razor with a somewhat rounded French point,
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1/2 hollow ground
16 mm (5/8 in) blade and single stabiliser in a three pin handle configuration. The middle pin adds stability and rigidity to the handle Hoffritz Solingen.JPG
A Solingen straight razor with a somewhat rounded French point, 12 hollow ground 16 mm (58 in) blade and single stabiliser in a three pin handle configuration. The middle pin adds stability and rigidity to the handle

A thick strip of metal running transversely at the junction where the main blade attaches to the shank is called the stabiliser. The stabiliser can be double, [27] single, or can be absent in some razor models. The first stabiliser is usually very narrow and thicker and runs at the shank-to-blade junction, covering the shank and just spilling over to the shoulder. The second stabiliser can be distinguished since it is considerably wider, thinner, and longer, appearing after the first stabiliser and running lower toward the heel. [27]

The arched, non-cutting top of the blade is called the back or the spine while the cutting part of the blade opposite the back is called the cutting edge. [30] [13] Finally the other free end of the blade, at the opposite end of the tang on the spine, is called the point and, sometimes, the head or the nose. [29] [31]

There are usually two, but sometimes three, pins in the handle. The middle pin, if present, is plastic coated and is called the centre plug. [28] Its function is to stabilise the sides of the handle so that they cannot be squeezed in the middle and acts as a bridge between them. When folded into the scales, the blade is protected from accidental damage, and the user is protected from accidental injury. During folding, the back of the blade, being thick and normally with a curved cross-section, acts as a natural stopper and prevents further rotation of the blade out of the handle from the other side. The frictional force between the scales and the tang applied about the pivot is called the Tension and it determines how freely the blade rotates about the point of rotation. [32] A proper amount of tension should be present, for safety reasons, to ensure that the blade does not spin freely when opening or closing. [32]

Construction

Straight razors consist of a blade sharpened on one edge and a handle attached to the blade through a pin. The blade can then rotate in and out of the handle. The blade can be made of either stainless steel, which is resistant to rust but can be more difficult to hone, or high-carbon steel, which is much easier to hone, obtains a sharper edge but will rust more easily than stainless steel if neglected. [30] [33] [34] [35] Cheap stainless steel straight razors from Asia and more expensive stainless steel and carbon steel razors from Europe are available.

A razor blade starts as a shape called the blank supplied by the steel manufacturer. [5]

Forging

Straight razor blank produced by forging welded steel wire. The wire strands are visible on the right while the blank blade and its shank, shoulder, heel, and spine are shown on the left. Razor blank forged from welded steel wire.jpg
Straight razor blank produced by forging welded steel wire. The wire strands are visible on the right while the blank blade and its shank, shoulder, heel, and spine are shown on the left.

The blank of the blade is produced by forging steel ingots or steel available in other forms such as wire, springs, etc.. After the blank is formed, the first step is to clean it using a heavy forge. The material used for open razors is steel with a minimum carbon content of 0.6%. This percentage of carbon content ensures optimum hardness, flexibility and resistance to wear. [5] Following the forging stage, a hole is drilled in the tang at the pivot point. This is a crucial step, since after the steel hardening process it would be impossible to drill. This process requires great skill. [19]

Hardening and tempering

The steel is hardened through a special process where the forged steel blade is heated up to approximately 760 °C (1,400 °F) dependent on the specific steel. This heating enables fast and uniform heating of the steel at the optimum temperature for maximum hardness. The tempering stage follows the hardening process, where the blade is heated in a bath of oil at a temperature between 200–400 °C (392–752 °F). Tempering imparts the steel its flexibility and toughness according to the phase diagrams for steel. [5] There are three types of steel blade according to the level of tempering it has received. Hard-tempered, medium-tempered and soft-tempered. Hard-tempered edges last longer but sharpening them is difficult. The converse is true for soft-tempered blades. The characteristics of medium-tempered blades are in-between the two extremes. [13] Carbon steel blades can reach a maximum hardness of 61 HRC on the Rockwell scale. [36]

Grinding

Following the processes of hardening and tempering, the blanks are ground, according to the two fundamental blade cross sectional area profiles.

Finishing

A straight razor with round point. Its high-gloss finish indicates metal plating usually associated with inferior quality. No name straight razor.JPG
A straight razor with round point. Its high-gloss finish indicates metal plating usually associated with inferior quality.

Subsequent to grinding, the blade is polished to various degrees of gloss. The finest finish, used in the most expensive razors, is the mirror finish. [19] Mirror finish is the only finish used if gold leafing is to be part of the decoration of the blade. [19]

Satin finish requires less polishing time and therefore is not as expensive to produce. This finish is mostly used with black acid etching. Satin finish can sometimes be applied, as a compromise, to the back of the blade while the mirror finish and gold leafing are applied to the more visible front of the blade. This way the blade will not be as expensive as a fully mirror finished one. [19] Metal plating, using nickel or silver, is also used, but it is not preferred; the plating eventually erodes through use, revealing the underlying metal, which is often of inferior quality. [13] [22] Nickel-plated blades are very difficult to hone repeatedly and are made for mainly aesthetic reasons though lacking functionality. [22]

Blade decoration

The blade is decorated by engraving or gold leafing depending on the price. Less expensive blades undergo an electrolytic black acid engraving process. For more expensive blades, gold leafing applied by hand is employed, following a traditional process. [19]

Sharpening

Razor handling while honing on a whetstone. Image from page 20 of "Essay on barbers' razors, razor hones, razor strops and razor honing .." (1895) (14581593297).jpg
Razor handling while honing on a whetstone.

Sharpening is the final stage in the process. At first the blade is sharpened on a grinding wheel. Following that the blade can be honed by holding the blades against the flat side of rotating round stones, or by drawing the blade across stationary flat stones. The cutting edge is finished using a strop. [19] Sharpening is usually not completed during manufacturing, instead being done after purchase. [37]

Handle materials and their properties

Fox and Rooster Thiers-Issard straight razor with two-pin handle Navaja francesa.jpg
Fox and Rooster Thiers-Issard straight razor with two-pin handle

Handle scales are made of various materials, including mother-of-pearl, Bakelite, celluloid, bone, plastic, wood, horn, acrylic, ivory and tortoise shell. [38] [39] Celluloid can spontaneously combust at elevated temperatures. Buffalo horn tends to deform with time and it possesses form memory so it tends to warp. Mother of pearl is a brittle material and can exhibit cracks after some use. [38] Resin impregnated wooden handles are water resistant, do not deform and their weight complements the blade's to provide good overall balance for the razor. Snakewood, Brosimum guianense , [40] is also suitable for long term and intensive use.

The mechanical properties of bone make it a good handle material. [38] Handles were once made of elephant ivory, but this has been discontinued, though fossil ivory, such as mammoth, is still sometimes used, and antique razors with ivory scales are occasionally found (it is illegal to kill elephants for their ivory, but it is legal to buy an ivory-handled razor made before 1989). [41] [42] [43]

Blade geometry and characteristics

The geometry of the blade can be categorised according to three factors: the blade width and weight, the shape of the profile of the point of the razor, and the type of grinding method used for the blade (as grinding method determines the degree of curvatureand therefore hollowness, or thinnessof the sides of the cross section of the blade). [5]

Point types

Four of the main blade point (nose) profile shapes: Square, Barber's notch, Round, and French (with a round end point at the toe) Razor points.jpg
Four of the main blade point (nose) profile shapes: Square, Barber's notch, Round, and French (with a round end point at the toe)

Straight razors are, at first, categorised according to their blade profiles, from the head of the spine to the blade toe, based on their point, or nose, type. The following are the main types of blade profiles called points, or nose shapes: [5] [22] [44] [36]

  1. Square, spike or sharp point, so-called because the blade profile is straight and terminates at a very sharp point at the toe, perpendicular to the cutting edge of the razor. This type of blade is used for precise shaving in small areas but, at the risk of pinching the skin, it requires some experience in handling. [45] Spike point differs from square point as the angle at the edge of the blade is less than 90 degrees. resulting in a blade profile which appears slanted backwards at the toe. The spike end point of the profile at the toe may be ground by the user to make it rounder, but that may indicate a lack of skill in handling the razor. [22]
  2. Barber's notch. The Barber's notch point features a large rounded tip at the toe of the blade followed by a short concave and rounded arch, while its upper edge at the head of the spine is rounded and smaller in size than the curve at the toe. The upper, rounded, edge of Barber's notch was designed to aid in pulling the blade from the scales. Barber's notch is essentially a round-nose blade profile with a concave arch (notch) on its upper part to aid in lifting the blade from the scales.
  3. Round point (or Dutch). As the name implies the point profile is symmetrically curved from head to toe in a circular arc shape and therefore it lacks any sharp end points. As such it is a more forgiving blade than the other types and, although lacking pinpoint accuracy at the blade toe, it is more forgiving, and is recommended for relatively inexperienced users. There are also secondary edge types that derive from a combination of round nose characteristics, such as half round point incorporating round edges joined by a linear segment.
    French point with a spike end point at the toe French point.jpg
    French point with a spike end point at the toe
  4. French (or oblique) point. Its point profile is asymmetrically curved from head to toe, and resembles a quarter circle or ellipse, but with a sharper-angled curve near the head of the blade than the other points. The end line of the profile, at the toe of the blade, can vary between spike and curved. Compared to the rest of the points, the French point may help shave "difficult spots" such as under the nose, due to its sharply angular profile at the head which creates more clearance in tight areas.
    Spanish point with the characteristic twin spike points at the head and toe of the blade. Spanish point.jpg
    Spanish point with the characteristic twin spike points at the head and toe of the blade.
  5. Spanish point. The profile of the Spanish point has a small, rounded tip at the head, followed by a long concave arch, ending in a small rounded edge at the toe. This point should be used with care when shaving or stropping, as it tends to "bite" due to its pronounced edges.

Grinding method

Blade geometry and nomenclature Blade geometry and nomenclature.png
Blade geometry and nomenclature

The second category refers to the type of grinding method used and, since it affects the curvature of the blade cross section, includes the following two main types of blade grinds:

  1. Hollow grind, indicating that the sides of the blade cross section are concave. [5] [47]
  2. Flat or straight grind, indicating that the sides of the blade cross section are linear. This cross section most closely resembles a wedge and therefore this blade is sometimes called the wedge. [30]

The combination of the types found in these two classification categories can, in theory, lead to a wide variety of blade types such as round point hollow ground, square point flat ground etc., but in practice some points are combined with a specific grind. As an example, a French point blade is usually flat ground. [5] [45]

Degrees of hollowness. From left: Extra hollow (singing blade), 1/1 Hollow, 1/2 Hollow, 1/4 Hollow, Concave Wedge, Linear Wedge Blade hollowness scale.png
Degrees of hollowness. From left: Extra hollow (singing blade), 1/1 Hollow, 1/2 Hollow, 1/4 Hollow, Concave Wedge, Linear Wedge

A hollow grind produces a thinner blade than the flat grind because it removes more material from the blade (hollows or thins the blade more). The hollow-ground blade flexes more easily and provides more feedback on the resistance the blade meets while cutting the hair, which is an indicator of blade sharpness. [13] [48] Hollow-ground blades are preferred by most barbers and some high-end razor manufacturers limit their production exclusively to hollow ground razors. [19] [13]

Blade width

Four common width sizes of blades. The several sizes of blades.jpg
Four common width sizes of blades.

The third and final category refers to blade width. The width of the blade is defined as the distance between the back of the blade and the cutting edge. It is expressed in units of eighth of an inch. [30] The sizes vary from 38 in (9.5 mm) up to 78 in (22 mm), rarely 88 in (25 mm). [30] A wider blade can carry more lather, much like a scoop, during multiple successive shaving strokes and thus it allows the user more shaving time and minimises blade rinse cycles. The disadvantage of the wider blade is that it is not as manoeuvrable as a narrower blade. A narrow blade can shave tight facial spots such as under the nose, but it must be rinsed more often. The most popular blade width size is 58 in (16 mm). [30] The width of the blade can also affect its sharpness. The wider the blade, the greater the thermal deformation that can occur due to changing temperatures, a fact that can lead to loss of edge sharpness. [22]

Blade weight

The weight of the blade is inversely proportional to the pressure that is applied during shaving. The heavier the blade, the lighter the pressure that needs to be applied during shaving. [49]

Length, stability, and balance

The degree of hollowness and thus the cross sectional area (thickness) of the blade vary depending on the grinding method used. Higher degree of hollowness in the blade implies a thinner cross section and this affects the stability (bending or buckling properties) of the blade; the thinner the blade the more flexible it is. [5] [38] The length and weight of the blade and handle and their relation to each other determines the balance of the straight razor. [13] The cutting area of the razor is proportional to the length of the blade, therefore, a longer blade requires less frequent honing since its cutting edge does not deplete as fast as that of a shorter blade. [22]

Transverse stabiliser

Antique razor with square point, full hollow ground
16 mm (5/8 in) blade and double transverse stabiliser Antique Razor.JPG
Antique razor with square point, full hollow ground 16 mm (58 in) blade and double transverse stabiliser

For hollow-ground blades stability is augmented by a transverse stabiliser in the form of one or two narrow strips of thicker metal running from the back of the blade to the end of the shoulder (at the junction where the blade meets the shank). This piece, if present, is simply called the stabiliser (single or double) and indicates a hollow ground blade, since a flat ground blade is massive and stable enough to not need a stabiliser. [27] [38] A double stabiliser implies 11 (full) hollow ground blade. [38] The stabiliser protects the blade from torsional bending in the transverse direction (transverse spine). [38]

Longitudinal stabiliser

Blade cross-section indicating hollow-ground blade geometry with different radii of curvature. The belly indicates the presence of a longitudinal stabiliser. Hollow Ground blade with different radii of curvature.png
Blade cross-section indicating hollow-ground blade geometry with different radii of curvature. The belly indicates the presence of a longitudinal stabiliser.

In addition to the transverse stabiliser, a longitudinal stabiliser is sometimes created in the form of a ridge parallel to the cutting edge and the blade is ground in two areas or bevels, each with different degrees of hollowness or curvature; the area between the back of the blade and the ridge is typically less hollow featuring a larger radius of curvature, also called the "belly", [47] and the area between the ridge and the cutting edge which is more hollow i.e. with a smaller radius of curvature. These two beveled areas have different curvatures and in a well-made razor they transition seamlessly in the ridge (belly) and the cutting edge respectively. [38] [50] Sometimes there are three bevels. [50]

The ridge stabilizes the blade against torsional flexing in a direction perpendicular to its longitudinal axis by acting as a lengthwise spine for the blade. The distance between the ridge and the back of the blade is inversely proportional to the hollowness of the blade and is described in fractional terms in ascending steps of 14 as, for example, 14 hollow, 12 hollow, or 44 or 11 (full hollow). Full hollow indicates that the stabilizing ridge is very close to the midsection of the blade and the farthest from the cutting edge compared to the other grades. This is considered the most expensive blade. [38]

At the highest end of hollow ground, more hollow than even the 11 grade, is the so-called singing razor, so named because its blade produces a specific resonant tone when plucked, similar to a guitar string, however such use is not recommended as it can distort the cutting edge. [19] [30] Its manufacturing process is so demanding that a full 25% of the blades get rejected as not meeting standards. [19]

Stability and sharpness

Blade geometry and hollowness. Blade A is less hollow than blade B, since blade A has more material than blade B. Visually, the belly of blade B is located higher than the belly of blade A, indicating a higher degree of hollowness. Profile C represents the extra-hollow ground blade. The wedge profile on the right is used as reference of zero hollowness. Four blade profiles.png
Blade geometry and hollowness. Blade A is less hollow than blade B, since blade A has more material than blade B. Visually, the belly of blade B is located higher than the belly of blade A, indicating a higher degree of hollowness. Profile C represents the extra-hollow ground blade. The wedge profile on the right is used as reference of zero hollowness.

There is a tradeoff between stability and long term blade sharpness. A full hollow ground (11) blade can keep a very sharp edge even after a great number of honing cycles because of its high degree of hollowness but it is more susceptible to torsional bending because it is thinner. [38] A partially hollow blade (12 or 14 for example) cannot sustain the same degree of sharpness for as long, because as the cutting edge erodes it can eventually reach the stabilising ridge faster where there is more material and thus the cutting-edge bevel cannot be maintained without excessive honing of the stabilising ridge to remove the additional material, which could also destabilise the rest of the blade. However, the partially hollow blade is more stable because its additional material makes it stiffer, and thus more resistant to deformation. [38] In addition a flat ground blade, since by definition is not hollow (curved) at all, is the most stable of the blades but because its cross sectional area is the largest it also feels heavier than hollow ground and this can affect the feel and balance of the razor. [5] [30]

Balance

A razor is well balanced if when opened it balances about its pivot pin, indicating that the torques about the pivot point, caused by the corresponding weight distributions of the blade and the handle about the pivot pin, counterbalance each other. [13] A well-balanced razor is both safer to handle when open and easier to shave with. [13]

Effects of blade geometry on performance

The characteristics of each blade type determine the type of recommended uses for each blade as well as their performance and maintenance routines.

Each type has its own strengths and weaknesses depending on the requirements of use.

A straight razor from Japan with a spike point,
22 mm (7/8 in), 1/2 hollow-ground, stainless steel blade Square edge razor.JPG
A straight razor from Japan with a spike point, 22 mm (78 in), 1/2 hollow-ground, stainless steel blade

Extra hollow blades such as singing blades are the thinnest and therefore they provide the best possible shave from all the other types. [19] However they are also very flexible and therefore not suitable for tasks requiring increased pressure to the blade such as heavy beard growth etc. Care should also be taken when stropping so that the thin blade will not be overly stressed, since it cannot withstand abuse as well as lower grades. [19] Flat ground razors are very stable and as such they can handle tough shaving jobs since they do not easily deform under pressure and they can take rough handling such as heavy stropping and honing. [19]

Although a wider blade is not as manoeuvreable as a narrower one, especially in tight spots, it is better to purchase a wider blade, since honing eventually reduces the width of the blade with use, a fact that can shorten the life of a straight razor with a narrow blade. [22] On the other hand, the width of the blade is proportional to the blade distortion that can occur due to temperature fluctuations; this can lead to more frequent stropping and honing, because blade deformation due to thermal stress can lead to loss of cutting edge sharpness. [22]

Usage

Swaty honing stone and razor blade. Swaty is considered one of the best whetstones. Honing stone and blade.JPG
Swaty honing stone and razor blade. Swaty is considered one of the best whetstones.

Shaving is done with the blade at approximately an angle of thirty degrees to the skin and in a direction perpendicular to the edge; [29] an incision requires the movement of the blade to be sideways or in a direction parallel to the edge. [30] These circumstances are always avoided by the shaver, who always shaves in a direction perpendicular to the cutting edge of the blade. [30] A popular shaving method is the 14 stroke shave, which details the order and direction of each stroke to shave your face in 14 strokes. [51]

To be most effective, a straight razor must be kept extremely sharp. The edge is delicate, and inexpert use may bend or fold over the razor's edge. To unfold and straighten the microscopic sharp edge, one must strop the blade on leather periodically. [52] A 1979 comparative study of straight and electric razors, performed by Dutch researchers, found that straight razors shave hair approximately 2/1000 in. (0.05mm) shorter than electrics. [8]

To sharpen or finish the blade using a suspended strop, the razor is pushed toward the suspension ring while both the back and the cutting edge lie flat on the strop and with the back of the blade. No pressure should be applied on the cutting edge. A strop may be two sided with leather on one side and cloth on the other side. The cloth is used for blade alignment and sharpening. The leather is for finishing. [53]

During stropping, the strop hangs from the ring and is pulled from the rectangular loop giving it a proper tension Razor and strop.JPG
During stropping, the strop hangs from the ring and is pulled from the rectangular loop giving it a proper tension

The stropping process involves sliding the razor blade flat on the strop; upon reaching the end of the cloth or leather near the suspension ring, the blade is turned about its back (clockwise for a right-handed barber; counter-clockwise for a left-handed one) until the cutting edge touches the strop. It is then pulled toward the rectangular handle of the strop with back and cutting edge flat on the strop as before. The blade is moved in a slightly diagonal direction so to give every point of the edge a chance to touch the strop, without applying too much pressure. This process aligns the cutting edge properly with the back of the blade, avoiding "bumps" on the cutting edge. Rotating the blade on the strop about the cutting edge can damage it because such use will impact the micro-alignment of the edge. [50] Depending on use and condition, the blade can be sharpened occasionally by using a razor hone. [54] [55] Strops prepared with pastes containing fine grit are also used for honing but are not recommended for the inexperienced user, as they can easily rake off the edge if they apply the wrong amount or exert too much pressure. [39] [56]

Some strops have a linen or canvas back. [57]

Shaving soap in a cup is traditionally lathered and applied using a rotating in-and-out motion of a shaving brush, usually made of boar or badger bristles. [58] In the heyday of straight razor shaving, wealthy users maintained a weekly "rotation" of seven razors to reduce wear on any one piece. Straight razors were often sold in special boxes of seven labelled for the days of the week. [59]

Modern use

Antique leather barber's strop. It is best for sturdy wedge type blades. Hollow ground blades should be stropped on a hanging strop, since it provides a more flexible support for the blade. Ostrzenie brzytwy 0211.jpg
Antique leather barber's strop. It is best for sturdy wedge type blades. Hollow ground blades should be stropped on a hanging strop, since it provides a more flexible support for the blade.
Man being shaved with straight razor. Roadside, Kashgar Man being shaved with straight razor. Roadside, Kashgar.jpg
Man being shaved with straight razor. Roadside, Kashgar

Straight razors are still manufactured. DOVO, of Solingen, Germany, and Thiers Issard of France are two of the best-known European manufacturers. [60] Boeker of Solingen is yet another cutlery manufacturer known for their straight razors. [61] Wusthof and Henckels are two prominent knife manufacturers in Solingen who also produced straight razors. [60] Thiers Issard and Hart Steel are famous for their decorated blades and their Damascus steel. [60] Feather Safety Razor Co. Ltd. of Osaka, Japan, makes a razor with the same form as a traditional straight, but featuring a disposable blade that can be installed through an injector-type system. Artisans also make handcrafted custom straight razors based on their own designs, the designs of their customers, or by finishing old blanks of blades. [62]

Modern straight-razor users are known to favor them for a variety of reasons. Some are attracted to the nostalgia of using old and traditional methods of shaving. Others wish to avoid the waste of disposable blades. [30] [63]

Still others argue that straight razors provide a superior shave through a larger blade and greater control of the blade, including the blade angle. Straight razors cover a much greater area per shaving stroke, because their cutting edge is much longer than any of the multi-blade razors.

They also do not have to be rinsed as often, because their blade acts like a scoop and carries the lather on it during multiple shaving strokes, while the multi-blade razors are not nearly as efficient at such a task because of their considerably smaller blade geometry. [30] [64]

DOVO straight razor Straight Razor cropped.jpg
DOVO straight razor

Straight razors are also much easier to clean and can handle tougher shaving tasks, such as longer facial hair, than modern multi-blade razors, which tend to trap shaving debris between their tightly packed blades and are easily clogged, even with relatively short stubble. [64] [65]

In addition, multi-edge razors can irritate the skin due to their multi-blade action, and this can lead to a condition known as pseudofolliculitis barbae, colloquially known as razor bumps. One of the recommended actions for those so affected is to switch to single blade use. [66]

Others simply like the good results and the satisfaction of maintaining the blade themselves. [30] Yet others cite aesthetic reasons in addition to the practical ones. A well-made blade, in a nice handle with a well-crafted etching and decorated shank, carries a sense of craftsmanship and ownership difficult to associate with a disposable blade cartridge. [30]

Finally, a well-kept razor can last for decades, [30] and can become a family heirloom that can be passed from parent to child. [30] [67] For all of these reasons, devotees of the straight razor make for an active market.

Shavette Shavette.jpg
Shavette

Owing to health concerns, some areas require barbers who provide straight-razor shaving to use a version that employs a disposable or changeable blade system. In this type of straight razor the razor blade is changed and disposed of after each service. Various jurisdictions in Australia, Canada, New Zealand, Turkey and the United States, however, permit the professional use of straight razors. [3] [68] [69] [70] [71] [72]

The 2012 James Bond film, Skyfall, has renewed interest in straight razors due to a scene when the agent shaves with one and his co-star Naomie Harris helps him finish shaving while remarking that “sometimes the old ways are the best”. [73] Online straight razor retailers have reported increased sales ranging from 50% to over 400% due to the exposure generated by the film. [73]

The increase in sales is part of an overall growth in demand for straight razors, since about 2008, which has also seen an increase in the number of barbers offering straight razor shaves. [73] The phenomenon seems to be driven by renewed nostalgia for things retro such as the straight razor which evokes simpler notions of the past such as the "macho" image associated with its use and also the skill required to shave with it which can be a source of pride. [73]

Cost

As compared to the disposable and cartridge razors, straight razors are more economical, despite a higher initial cost, because if properly cared for, no additional cost is incurred, as compared to disposable razors where new cartridges must be periodically procured. [74]

Environment

Straight razors are more environmentally friendly than other types of razors since the latter come with packaging that may have to be thrown away along with the razors, and, in the case of electric razors, batteries that are typically disposed of after they expire. [74] Straight razors produce no waste and they require only a strop for honing. [74]

Handling and honing

The various straight razor honing and stropping directions and handling techniques are illustrated by the drawings below.

Related Research Articles

<span class="mw-page-title-main">Knife</span> Tool or weapon with a cutting edge or blade

A knife is a tool or weapon with a cutting edge or blade, usually attached to a handle or hilt. One of the earliest tools used by humanity, knives appeared at least 2.5 million years ago, as evidenced by the Oldowan tools. Originally made of wood, bone, and stone, over the centuries, in step with improvements in both metallurgy and manufacturing, knife blades have been made from copper, bronze, iron, steel, ceramic, and titanium. Most modern knives have either fixed or folding blades; blade patterns and styles vary by maker and country of origin.

<span class="mw-page-title-main">Shaving</span> Removal of hair with a razor or others bladed implement

Shaving is the removal of hair, by using a razor or any other kind of bladed implement, to slice it down—to the level of the skin or otherwise. Shaving is most commonly practiced by men to remove their facial hair and by women to remove their leg and underarm hair. A man is called clean-shaven if he has had his beard entirely removed.

<span class="mw-page-title-main">Blade</span> Sharp cutting part of a weapon or tool

A blade is the sharp, cutting portion of a tool, weapon, or machine, specifically designed to puncture, chop, slice, or scrape surfaces or materials. Blades are typically made from materials that are harder than those they are intended to cut. This includes early examples made from flaked stones like flint or obsidian, evolving through the ages into metal forms like copper, bronze, and iron, and culminating in modern versions made from steel or ceramics. Serving as one of humanity's oldest tools, blades continue to have wide-ranging applications, including in combat, cooking, and various other everyday and specialized tasks.

<span class="mw-page-title-main">Razor</span> Device to remove body hair

A razor is a bladed tool primarily used in the removal of body hair through the act of shaving. Kinds of razors include straight razors, safety razors, disposable razors, and electric razors.

<span class="mw-page-title-main">Japanese kitchen knife</span> Type of knife used for food preparation

A Japanese kitchen knife is a type of kitchen knife used for food preparation. These knives come in many different varieties and are often made using traditional Japanese blacksmithing techniques. They can be made from stainless steel, or hagane, which is the same kind of steel used to make Japanese swords. Most knives are referred to as hōchō or the variation -bōchō in compound words but can have other names including -kiri. There are four general categories used to distinguish the Japanese knife designs: handle, blade grind, steel, and construction.

<span class="mw-page-title-main">Safety razor</span> Shaving implement

A safety razor is a shaving implement with a protective device positioned between the edge of the blade and the skin. The initial purpose of these protective devices was to reduce the level of skill needed for injury-free shaving, thereby reducing the reliance on professional barbers.

<span class="mw-page-title-main">Grind</span> Cross sectional shape of a blade in a plane normal to its edge

A blade's grind is its cross-sectional shape in a plane normal to the edge. Grind differs from blade profile, which is the blade's cross-sectional shape in the plane containing the blade's edge and the centre contour of the blade's back. The grind of a blade should not be confused with the bevel forming the sharpened edge; it more usually describes the overall cross-section of the blade, not inclusive of the beveled cutting edge which is typically of a different, less acute angle as the bevel ground onto the blade to give it a cross-sectional shape. For example, the famous Buck 110 hunting knife has a "hollow ground" blade, with concave blade faces, but the cutting edge itself is a simple, flat-ground bevel of lesser angle. It would be difficult, if not impossible, to put a "hollow grind" onto the actual cutting edge of the blade itself, which is a very narrow and small bevel.

Gillette is an American brand of safety razors and other personal care products including shaving supplies, owned by the multi-national corporation Procter & Gamble (P&G). Based in Boston, Massachusetts, United States, it was owned by The Gillette Company, a supplier of products under various brands until that company merged into P&G in 2005. The Gillette Company was founded by King C. Gillette in 1901 as a safety razor manufacturer.

<span class="mw-page-title-main">Razor strop</span> Device for straightening and polishing blades

A razor strop or simply a strop is a flexible strip of leather, canvas, denim fabric, balsa wood, or other soft material, used to straighten and polish the blade of a straight razor, a knife, or a woodworking tool such as a chisel. In many cases stropping re-aligns parts of the blade edge that have been bent out of alignment. In other cases, especially when abrasive polishing compound is used, stropping may remove a small amount of metal. Stropping can also burnish the blade.

<span class="mw-page-title-main">Drawknife</span> Woodworking hand tool

A drawknife is a traditional woodworking hand tool used to shape wood by removing shavings. It consists of a blade with a handle at each end. The blade is much longer than it is deep. It is pulled or "drawn" toward the user.

<span class="mw-page-title-main">Kitchen knife</span> Knives intended for use in the process of preparing food

A kitchen knife is any knife that is intended to be used in food preparation. While much of this work can be accomplished with a few general-purpose knives – notably a large chef's knife, a tough cleaver, a small paring knife and some sort of serrated blade – there are also many specialized knives that are designed for specific tasks. Kitchen knives can be made from several different materials.

<span class="mw-page-title-main">Japanese carpentry</span> Distinctive woodworking style

Japanese carpentry was developed more than a millennium ago that is known for its ability to create everything from temples to houses to tea houses to furniture by wood with the use of few nails.

<span class="mw-page-title-main">Sharpening jig</span> Tool used to sharpen woodworking tools

A sharpening jig is often used when sharpening woodworking tools. Many of the tools used in woodworking have steel blades which are sharpened to a fine edge. A cutting edge is created on the blade at the point at which two surfaces of the blade meet. To create this cutting edge a bevel is formed on the blade, usually by grinding. This bevel is subsequently refined by honing until a satisfactorily sharp edge is created.

<span class="mw-page-title-main">Sharpening stone</span> Abrasive slab used to sharpen tools

Sharpening stones, or whetstones, are used to sharpen the edges of steel tools such as knives through grinding and honing.

<span class="mw-page-title-main">Sharpening</span> Creating or refining the edge of a cutting tool

Sharpening is the process of creating or refining the edge joining two non-coplanar faces into a converging apex, thereby creating an edge of appropriate shape on a tool or implement designed for cutting. Sharpening is done by removing material on an implement with an abrasive substance harder than the material of the implement, followed sometimes by processes to polish/hone the sharp surface to increase smoothness.

Cutlery and Allied Trades Research Association (CATRA) is an internationally known research and technology organisation in Sheffield, England which specialises in knives, cutlery, tableware, metallic holloware, shaving razors, industrial knives, blades and garden tools.

<span class="mw-page-title-main">Knife sharpening</span>

Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, or a flexible surface with hard particles, such as sandpaper. Additionally, a leather razor strop, or strop, is often used to straighten and polish an edge.

<span class="mw-page-title-main">Rolls Razor</span> British manufacturer

Rolls Razor Limited was a British company known first for its manufacture of a sophisticated safety-razor and later, under new ownership, an "affordable" twin-tub washing machine.

<span class="mw-page-title-main">Honing steel</span> Rod of steel used to restore keenness to dulled blades

A honing steel, sometimes referred to as a sharpening steel, whet steel, sharpening stick, sharpening rod, butcher's steel, and chef's steel, is a rod of steel, ceramic or diamond-coated steel used to restore keenness to dulled blade edges. They are flat, oval, or round in cross-section and up to 30 centimetres (1 ft) long. The steel and ceramic honing steels may have longitudinal ridges, whereas the diamond-coated steels are smooth but embedded with abrasive diamond particles.

<span class="mw-page-title-main">Thiers Issard</span> French cutlery manufacturer

Thiers Issard or Thiers Issard Sabatier is a French cutlery manufacturer; they are one of a number of companies using the Sabatier name. It exports a wide range of knives and straight razors to approximately thirty countries. They are viewed as one of the top cutlery firms in Europe.

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