Scrim (material)

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A scrim used in an art installation Robert Irwin Scrim Veil Black Rectangle Natural Light Whitney 2013.jpg
A scrim used in an art installation

A scrim is a woven material, either finely woven lightweight fabric widely used in theatre, or a heavy, coarse woven material used for reinforcement in both building and canvas making.

Contents

Light gauzy material

A scrim or gauze is often a very light textile made from cotton, or sometimes flax or other materials. It is lightweight and translucent, which means it is often used for making curtains. The fabric can also be used for bookbinding and upholstery.

Scrims have seen extensive use in theatre. There are several types used for special effects. The variety typically used for special effects is called sharkstooth scrim. However, in theatre a scrim can refer to any such thin screen, and is made out of a wide variety of materials. Sharkstooth scrim is woven and earns its name because the weave resembles a set of triangles that resemble a shark's teeth with openings similar in size to a window screen's.

The most common effects that scrim is used for is the 'reveal effect', in which an actor or scene is made to appear or disappear by using the scrim and appropriate lighting. Other common effects include sharp silhouettes, backlit from behind the scrim, or other shadow effects (shrinking and growing a shadow). [1]

The bobbinet/bobbinette is a type of scrim that has a hexagonal hole shape and comes in a variety of hole sizes. It is used for a number of lighting effects in the film and theatre industries.

Scrim is also used in clothing, usually covering the face or head. This allows the wearer to see out, while preventing others from seeing in. This may also be combined with camouflage to completely hide a person, such as a sniper, [2] hunter [3] [ better source needed ] or wildlife photographer. The term "helmet scrim" refers to the practice of adorning a helmet with scrim and other fabrics to make its shape less obvious; [4] [5] the practice of adding scrim to a helmet is often done as much for reasons of perceived status as it is for reasons of actually improving camouflage. [6] [7] British and other forces have also made constant use of issued or privately purchased scrim fabric as a sort of improvised scarf that can be quickly converted into a face veil or similar. [8] [9] [10]

A scrim was an integral part of the Beijing Olympic Stadium in Beijing. It was the screen running around the top of the stadium during the opening ceremonies on which all kinds of scenes were projected. Li Ning ran around it just before the cauldron lighting for 2008 Summer Olympics.

A scrim (also called a screen) is used as an acoustically transparent covering for a loudspeaker to protect the diaphragm and dust cap, or as an air filter element to protect the voice coil and other components of the transducer.

A scrim can be used on the back of a perforated (acoustically transparent) movie screen to reduce the amount of light shining thru it.

Applications to stage lighting

Scrims both reflect and transmit light. This means that if a light from a front-of-house position is shone at a scrim, then both the scrim and everything behind it will be lit. This can lead to a variety of interesting effects:

In general, anything that is lit will be seen on both sides of a scrim: scrims do not absorb light. Scrim can also be used in theatre in combination with a cyclorama or backdrop. The idea is similar to the other uses. When the drop is lit (or images or video are rear-projected onto the back of the drop), the images or colours projected are visible. However, when the drop is not lit, the images or colors will disappear. A scrim can also help dull the image, creating a greater sense of depth.

Another effect is caused by layering two scrims, or even by placing a mirror behind a scrim and lighting it: the familiar moire effect. This can often cause audience disorientation.

Reinforcement material

Shop windows in the United Kingdom extensively covered with scrim during the 1940-1941 Blitz Ministry of Information Second World War Press Agency Print Collection HU103331.jpg
Shop windows in the United Kingdom extensively covered with scrim during the 1940-1941 Blitz
Scrim and sarking Scrim and sarking wall 02.jpg
Scrim and sarking

The technique of using scrim as a reinforcement occurs commonly in the manufacture of glass-fiber or carbon-fiber composites: scrim layers may cover the exterior surface of the carbon-fiber laminate for an improved protective surface. Jute scrim can reinforce plaster in sculpture, when casting or working directly in plaster.

A similar usage of the term is found in sailcloth manufacture, where scrim is a strong loose weave of fibres laminated into the cloth to provide extra strength and stability to sails.

In carpentry, scrim is a very heavy, coarsely-woven fabric (similar to hessian or to coarse canvas) which is stretched over interior boards to provide support for wallpaper and to add an extra rigidity. This method of construction, widely used in older houses, is often referred to as "scrim and sarking", the sarking being the board.

Scrim is also an item that utilizes plies of tissue reinforced with a layer of nylon (much like fishing line or heavy duty monofilament) or cotton thread. 2-ply tissue 1-ply scrim[ sentence fragment ] the layer of scrim is not counted in the ply count. 2/1 would be a 2-ply scrim.

Scrim is a glass fibre (previously burlap) open-mesh tape used to cover joints in plasterboard/wall board prior to plastering. It prevents a crack appearing in the plaster finish at a later date. The roll of tape may be plain or adhesive-coated to facilitate its installation.

Scrim was handed out during World War II to tape windows, so that they should not cause hazardous shrapnel in case of bomb blasts. [11]

Related Research Articles

<span class="mw-page-title-main">Calico</span> Type of textile

Calico is a heavy plain-woven textile made from unbleached, and often not fully processed, cotton. It may also contain unseparated husk parts. The fabric is far coarser than muslin, but less coarse and thick than canvas or denim. However, it is still very cheap owing to its unfinished and undyed appearance.

<span class="mw-page-title-main">Yarn</span> Long continuous length of interlocked fibres

Yarn is a long continuous length of interlocked fibres, used in sewing, crocheting, knitting, weaving, embroidery, ropemaking, and the production of textiles. Thread is a type of yarn intended for sewing by hand or machine. Modern manufactured sewing threads may be finished with wax or other lubricants to withstand the stresses involved in sewing. Embroidery threads are yarns specifically designed for needlework. Yarn can be made of a number of natural or synthetic materials, and comes in a variety of colors and thicknesses. Although yarn may be dyed different colours, most yarns are solid coloured with a uniform hue.

<span class="mw-page-title-main">Grip (occupation)</span> Camera supporting equipment technician

In the United States, Canada and the United Kingdom, grips are camera support equipment technicians in the filmmaking and video production industries. They constitute their own department on a film set and are directed by a key grip. Grips have two main functions: The first is to work closely with the camera department to provide camera support, especially if the camera is mounted to a dolly, crane, or in an unusual position, such as the top of a ladder. Some grips may specialize in operating camera dollies or camera cranes. The second function is to work closely with the electrical department to create lighting set-ups necessary for a shot under the direction of the director of photography.

Grips' responsibility is to build and maintain all the equipment that supports cameras. This equipment, which includes tripods, dollies, tracks, jibs, cranes, and static rigs, is constructed of delicate yet heavy duty parts requiring a high level of experience to operate and move. Every scene in a feature film is shot using one or more cameras, each mounted on highly complex, extremely expensive, heavy duty equipment. Grips assemble this equipment according to meticulous specifications and push, pull, mount or hang it from a variety of settings. The equipment can be as basic as a tripod standing on a studio floor, to hazardous operations such as mounting a camera on a 100 ft crane, or hanging it from a helicopter swooping above a mountain range.

Good Grips perform a crucial role in ensuring that the artifice of film is maintained, and that camera moves are as seamless as possible. Grips are usually requested by the DoP or the camera operator. Although the work is physically demanding and the hours are long, the work can be very rewarding. Many Grips work on both commercials and features.

<span class="mw-page-title-main">Pepper's ghost</span> Illusion technique

Pepper's ghost is an illusion technique, used in the theatre, cinema, amusement parks, museums, television, and concerts, in which an image of an object off-stage is projected so that it appears to be in front of the audience.

<span class="mw-page-title-main">Curtain</span> Cloth or other material used to block out light

A curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or water. A curtain is also the movable screen or drape in a theatre that separates the stage from the auditorium or that serves as a backdrop/background.

In theater and film, a cyclorama is a large curtain or wall, often concave, positioned at the back of the apse. It often encircles or partially encloses the stage to form a background. It was popularized in the German theater of the 19th century and continues in common usage today in theaters throughout the world. It can be made of unbleached canvas or muslin, filled scrim, or seamless translucent plastic. Traditionally it is hung at 0% fullness (flat). When possible, it is stretched on the sides and weighted on the bottom to create a flat and even surface. As seams tend to interrupt the smooth surface of the cyclorama, it is usually constructed from extra-wide material.

<span class="mw-page-title-main">Scrim (lighting)</span>

A scrim is a device used in the film and television industries, as well as by photographers, to modify properties of light. There are variations on types of scrim, depending upon its use, whether with natural light, or with man-made light sources. However, their basic use is the same – to reduce intensity and/or harshness of light.

<span class="mw-page-title-main">Crêpe (textile)</span> Any of various fabrics with twisted threads, often crinkled surface

Crêpe, also spelled crepe or crape, is a silk, wool, or synthetic fiber fabric with a distinctively crisp and crimped appearance. The term "crape" typically refers to a form of the fabric associated specifically with mourning. Crêpe was also historically called "crespe" or "crisp".

<span class="mw-page-title-main">Hessian fabric</span> Woven fabric from jute or sisal

Hessian, burlap in the United States and Canada, or crocus in Jamaica and the wider Caribbean, is a woven fabric made of vegetable fibres, usually the skin of the jute plant or sisal leaves. It is generally used for duties of rough handling, such as making sacks employed to ship farm products and to act as covers for sandbags, and for wrapping tree-root balls. However, this dense woven fabric, historically coarse, more recently is being produced in a refined state, known simply as "jute", as an eco-friendly material for bags, rugs, and other products.

<i>Jūnihitoe</i> Historical layered clothing worn by Japanese court ladies

The jūnihitoe, more formally known as the itsutsuginu-karaginu-mo (五衣唐衣裳), is a style of formal court dress first worn in the Heian period by noble women and ladies-in-waiting at the Japanese Imperial Court. The jūnihitoe was composed of a number of kimono-like robes, layered on top of each other, with the outer robes cut both larger and thinner to reveal the layered garments underneath. These robes were referred to as hitoe, with the innermost robe – worn as underwear against the skin – known as the kosode. Hakama were also worn as underwear with the kosode; over time, the two would gradually become outerwear, with the kosode eventually developing into the modern-day kimono.

<span class="mw-page-title-main">Sailcloth</span> Strong fabric of the type used to make ships sails

Sailcloth is cloth used to make sails. It can be made of a variety of materials, including natural fibers such as flax, hemp, or cotton in various forms of sail canvas, and synthetic fibers such as nylon, polyester, aramids, and carbon fibers in various woven, spun, and molded textiles.

<span class="mw-page-title-main">Gauze</span> Thin translucent fabric with an open weave

Gauze is a thin, translucent fabric with a loose open weave. In technical terms, "gauze" is a weave structure in which the weft yarns are arranged in pairs and are crossed before and after each warp yarn, keeping the weft firmly in place. This weave structure is used to add stability to the fabric, which is important when using fine yarns loosely spaced. However, this weave structure can be used with any weight of yarn, and can be seen in some rustic textiles made from coarse hand-spun plant fiber yarns. Gauze is widely used for medical dressings.

<span class="mw-page-title-main">Theater drapes and stage curtains</span> Large piece of cloth designed to mask backstage areas of a theater from spectators

Theater drapes and stage curtains are large pieces of cloth that are designed to mask backstage areas of a theater from spectators. They are designed for a variety of specific purposes, moving in different ways and constructed from various fabrics. Many are made from black or other darkly colored, light-absorbing material. Theater drapes represent a portion of any production's soft goods, a category comprising any non-wardrobe, cloth-based element of the stage or scenery. Theater curtains are often pocketed at the bottom to hold weighty chain or to accept pipes to remove their fullness and stretch them tight.

<span class="mw-page-title-main">Volumetric lighting</span> Effect in computer graphics

Volumetric lighting, also known as "God rays", is a technique used in 3D computer graphics to add lighting effects to a rendered scene. It allows the viewer to see beams of light shining across the environment. Examples of volumetric lighting are seeing sunbeams shining through a window and seeing sunbeams radiating when the Sun is below the horizon, also known as crepuscular rays. The term seems to have been introduced from cinematography and is now widely applied to 3D modeling and rendering, especially in the development of 3D video games.

The manufacture of textiles is one of the oldest of human technologies. To make textiles, the first requirement is a source of fiber from which a yarn can be made, primarily by spinning. The yarn is processed by knitting or weaving, which turns yarn into cloth. The machine used for weaving is the loom. For decoration, the process of colouring yarn or the finished material is dyeing. For more information of the various steps, see textile manufacturing.

<span class="mw-page-title-main">Units of textile measurement</span> Systems for measuring textiles

Textile fibers, threads, yarns and fabrics are measured in a multiplicity of units.

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

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A fabric structure is a structure made of fabric, with or without a structural frame made from the weaving of the fabric itself. The technology provides end users a variety of aesthetic free-form building designs. Custom-made structures are engineered and fabricated to meet worldwide structural, flame retardant, weather-resistant, and natural force requirements. Fabric structures are considered a sub-category of tensile structure.

<span class="mw-page-title-main">Leno weave</span> Weave in which two warp yarns are twisted around the weft yarns

Leno weave is a weave in which two warp yarns are woven around the weft yarns to provide a strong yet sheer fabric. The standard warp yarn is paired with a skeleton or 'doup' yarn; these twisted warp yarns grip tightly to the weft which causes the durability of the fabric. Leno weave produces an open fabric with almost no yarn slippage or misplacement of threads.

The OR-201, also designated Kasda OR-201 Model 76 or M-76 for short, is a combat helmet of Israeli origin. Developed in the 1970s, the OR-201 was one of the world's first ballistic helmets. It was subsequently exported on a large scale and has been used by many militaries worldwide.

References

  1. 1 2 "Lighting with a Gauze / Scrim". Theatrecrafts.com. Retrieved 2022-05-14.
  2. Konstam, Angus (17 November 2016). British Commando 1940–45. Osprey Publishing. p. 39. ISBN   9781472814821.
  3. Ainsworth, Grace (20 January 2023). "What Are Scrims? Not a Shemagh". Breach Bang Clear. Retrieved 6 February 2024.
  4. Skinner, Rebecca (20 January 2015). British Paratrooper 1940–45. Osprey Publishing. pp. 26, 39. ISBN   9781472805126.
  5. Neville, Leigh (20 May 2015). The British Army in Afghanistan 2006–14: Task Force Helmand. Osprey Publishing. pp. 13, 26. ISBN   9781472806758.
  6. Skinner, Rebecca (20 January 2015). British Paratrooper 1940–45. Osprey Publishing. p. 39. ISBN   9781472805126.
  7. Neville, Leigh (20 May 2015). The British Army in Afghanistan 2006–14: Task Force Helmand. Osprey Publishing. p. 13. ISBN   9781472806758.
  8. Jewell, Brian (26 March 1981). British Battledress 1937–61. Osprey Publishing. p. 11. ISBN   9780850453874.
  9. Skinner, Rebecca (20 January 2015). British Paratrooper 1940–45. Osprey Publishing. p. 26. ISBN   9781472805126.
  10. Konstam, Angus (17 November 2016). British Commando 1940–45. Osprey Publishing. pp. 39, 56. ISBN   9781472814821.
  11. Molly Cutpurse: "Miriam's Family Blitz", Lilith Books, 2015, page 151.