Fabric inspection

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Fabric inspection, also known as fabric checking, is a systematic fabric evaluation in which defects are identified. Fabric inspection helps understand quality in terms of color, density, weight, printing, measurement, and other quality criteria prior to garment production. Fabric inspection takes place at various stages of manufacturing, including intermediate and final. "Perching" was another term for fabric inspection. [1] [2]

Contents

Procedure

Quality control in textiles is to inspect whether a manufactured material meets the specifications set by the buyers. It is a broader aspect that includes the quality of the final product and the encompassing materials, for example, yarn and fabric. Fabric quality addresses fabric-related issues. Fabric inspection is a step of visual examination apart from the performance criteria; It finds various flaws and irregularities. Accordingly, it grades the fabrics as per quality level, fabric weight, shading color, number, and size of the defects. [3] [4] [5] In addition to ensuring the quality of the garment, fabric inspection also helps manufacturing companies reduce their reject pile, essentially improving both efficiency and delivery times. [6]

Various methods are selected in fabric inspection, including inspection on a flat table or a fabric inspection machine. In-house or third-party inspectors can do the job.

Visual Inspection and grading

Most mills use their customized inspection standards, but commonly used is the point system. It is a widely accepted system of fabric inspection as it is based on penalty points. [7] [8] For example standard test methods for visually inspecting and grading fabrics (ASTM D5430) [9] and four-point system. Today, the 4-point system is the most commonly used fabric inspection system which as implied by the name, works with a 1 to 4 deduction system in which the highest defect rating is 4 points. [10] In the 4-point system, fabric quality is assessed based on unit points per 100 square yards. Typically, a fabric roll is deemed satisfactory if it contains 40 points per 100 yards. [11]

Computerized Inspection

The fabric inspection machine is equipped with lights and a table enabled with guide rollers that help the inspector or a fabric checker observe every yard.

Manual and computerized inspection are both used. [12] [13] [14]

Artificial Intelligence based fabric inspection

Artificial intelligence based fabric inspection systems are being developed. [15]

Repair and remedies

Mending

The fabric during the inspection undergoes rigorous examination systems, various defects can be located. Some of the manufacturing defects of the fabric are repairable through mending, a method of repairing with needlework. [1]

Burling or specking

Burling is a repairing finish. It helps in improving the fabric's final appearance. During the inspection process, woven fabrics may require burling, which includes the removal of certain manufacturing defects such as burrs, knots, loose and protruding threads. Burling tools are used to push these defects to the fabric's back side. [16]

Spotting

Spotting is a method of removing stains that can be used in the garment stage or on fabric as well. [17]

See also

Related Research Articles

<span class="mw-page-title-main">Textile</span> Various fiber-based materials

Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the only manufacturing method, and many other methods were later developed to form textile structures based on their intended use. Knitting and non-woven are other popular types of fabric manufacturing. In the contemporary world, textiles satisfy the material needs for versatile applications, from simple daily clothing to bulletproof jackets, spacesuits, and doctor's gowns.

<span class="mw-page-title-main">Dyeing</span> Process of adding color to textile products

Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. Dye molecules are fixed to the fiber by absorption, diffusion, or bonding with temperature and time being key controlling factors. The bond between the dye molecule and fiber may be strong or weak, depending on the dye used. Dyeing and printing are different applications; in printing, color is applied to a localized area with desired patterns. In dyeing, it is applied to the entire textile.

<span class="mw-page-title-main">Technical textile</span> Textile product valued for its functional characteristics

"Technical textile" refers to a category of textiles specifically engineered and manufactured to serve functional purposes beyond traditional apparel and home furnishing applications. These textiles are designed with specific performance characteristics and properties, making them suitable for various industrial, medical, automotive, aerospace, and other technical applications. Unlike conventional textiles used for clothing or decoration, technical textiles are optimized to offer qualities such as strength, durability, flame resistance, chemical resistance, moisture management, and other specialized functionalities to meet the specific needs of diverse industries and sectors.

Complete garment knitting is a next-generation form of fully fashioned knitting that adds the capability of making a 3-dimensional full garment. Unlike other fully fashioned knitting, where the shaped pieces must still be sewn together, finished complete knitted garments do not have seams. The knitting machines' computerized instructions direct movement of hundreds of needles to construct and connect several tubular knitted forms to create a complete garment in a single production step.

A staple fiber is a textile fiber of discrete length. The opposite is a filament fiber, which comes in continuous lengths. Staple length is a characteristic fiber length of a sample of staple fibers. A fiber is made up of natural substances and is known for being longer than it is wide. It is an essential criterion in yarn spinning, and aids in cohesion and twisting. Compared to synthetic fibers, natural fibers tend to have different and shorter lengths. The quality of natural fibers like cotton is categorized into staple length such as short, medium, long staple, and extra-long. Gossypium barbadense, one of several cotton species, produces extra-long staple fibers. The staple fibers may be obtained from natural and synthetic sources. In the case of synthetics and blends, the filament yarns are cut to a predetermined length.

<span class="mw-page-title-main">Finishing (textiles)</span> Manufacturing process

In textile manufacturing, finishing refers to the processes that convert the woven or knitted cloth into a usable material and more specifically to any process performed after dyeing the yarn or fabric to improve the look, performance, or "hand" (feel) of the finish textile or clothing. The precise meaning depends on context.

<span class="mw-page-title-main">Bolt (cloth)</span> Roll of fabric

A bolt is a piece of cloth woven on a loom or created by a knitting machine, as it is processed, stored and/or marketed. Consequently, its dimensions are highly variable – flexible and dependent upon the manufacturing, machinery, quantity, size, thickness and quality of the product. It is a unit used in manufacturing, transport and inventory. It is also used as a descriptor for wallpaper, which uses different fabrication machinery. Being encompassing, it is by its nature a generic and ambiguous term of convenience and context, used to describe fabric and wallpaper.

<span class="mw-page-title-main">Cut-resistant gloves</span> Type of personal protective equipment

Cut-resistant fabrics are those that can withstand slashing or cutting action. These textile products protect the wearer from accidents and occupational hazards. Metallic materials, Para aramid, high-modulus polyethylene materials and high density structure materials are used in the manufacturing of cut resistant textiles. Cut-resistant fabrics have various applications in mechanical protection for the wearer. They are used for protective wear in aprons and gloves for chefs, military use, the construction industry, forest use in trimming trees, etc

Dimensional stability pertains to a fabric's ability to maintain its initial size and shape even after undergoing wear and care, which is a desirable property. Dimension stability in fabrics or Shrinkage is the change of dimensions in textile products when they are washed or relaxed. The change is always expressed relative to the dimensions before the exposure of washing or relaxing. Shrinkage is also called residual shrinkage and measured in percentage. The major cause of shrinkages is the release of stresses and strains introduced in manufacturing processes. Textile manufacturing is based on the conversion of fiber into yarn, yarn into fabric, includes spinning, weaving, or knitting, etc. The fabric passes through many inevitable changes and mechanical forces during this journey. When the products are immersed in water, the water acts as a relaxing medium, and all stresses and strains are relaxed and the fabric tries to come back to its original state.

Clothtech is a segment of technical textiles that includes all textile components used primarily in clothing and footwear. Clothtech adds functional properties to the product that improve specific and critical objectives. Clothtech encompasses the functional parts that may not be visible, such as zippers, labels, sewing threads, elastics, insulating fiber fills, waddings, shoelaces, and drawcords velcro, and interlining cloths, etc. Sewing threads is the major component that accounts around 60% of the technical textiles under clothtech followed by labels 19%, interlinings 8%, shoelaces and zip fasteners 5%, Velcro and umbrella 2%.

<span class="mw-page-title-main">Greige goods</span> Woven or knitted fabrics which are not yet dyed or finished.

Greige goods are loom state woven fabrics, or unprocessed knitted fabrics. Greige goods undergo many subsequent processes, for instance, dyeing, printing, bleaching, and finishing, prior to further converting to finished goods such as clothing, or other textile products. "Grey fabrics" is another term to refer to unfinished woven or knitted fabrics.

<span class="mw-page-title-main">Hand feel</span> Feel of the fabrics to the skin or hand

Hand feel is the property of fabrics related to the touch that expresses sensory comfort. It refers to the way fabrics feel against the skin or in the hand and conveys information about the cloth's softness and smoothness. Hand feel is an estimated and subjective property of different fabrics, but nowadays, hand feel could be measured and assessed statistically.

<span class="mw-page-title-main">Textile performance</span> Fitness for purpose of textiles

Textile performance, also known as fitness for purpose, is a textile's capacity to withstand various conditions, environments, and hazards, qualifying it for particular uses. The performance of textile products influences their appearance, comfort, durability, and protection. Different textile applications require a different set of performance parameters. As a result, the specifications determine the level of performance of a textile product. Textile testing certifies the product's conformity to buying specification. It describes product manufactured for non-aesthetic purposes, where fitness for purpose is the primary criterion. Engineering of high-performance fabrics presents a unique set of challenges.

Barré is an unintentional repetitive horizontal pattern in fabrics that is generally undesirable and considered as a defect. It appears as a lateral stripe pattern. Barré occurs for many reasons associated with the manufacturing of textile ensembles like fiber, yarn, fabric manufacturing, weaving or knitting, or finishing faults.

<span class="mw-page-title-main">Chemical finishing of textiles</span> Chemical finishing methods that may alter the chemical properties of the treated fabrics

Chemical finishing of textiles refers to the process of applying and treating textiles with a variety of chemicals in order to achieve desired functional and aesthetic properties. Chemical finishing of textiles is a part of the textile finishing process where the emphasis is on chemical substances instead of mechanical finishing. Chemical finishing in textiles also known as wet finishing. Chemical finishing adds properties to the treated textiles. Softening of textiles, durable water repellancy and wrinkle free fabric finishes are examples of chemical finishing.

<span class="mw-page-title-main">Aesthetics (textile)</span> Concept of serviceability of textiles

Aesthetics in textiles is one of the basic concepts of serviceability of textiles. It is determined by the perception of touch and sight. Aesthetics imply the appearance and attraction of textile products; it includes the color and texture of the material. It is a statement about the end user (consumer) and the target market. When combined with fabric construction, the finish of the clothing material, garment fit, style, and fashion compatibility, colours create an aesthetic comfort. All of these elements work together to satisfy our visual perception. Aesthetics incorporates the role of evaluation also.

Product development in the context of textiles means developing and manufacturing new products that meet the requirements of serviceability as per user and target market while taking care of timelines, sell-ability, and profitability. It could be a new product altogether or an improvement or modification to an existing company's or a competitor's product. Product development involves many experts with specialist skills, from identifying product attributes to knowing how to make the product to fulfil consumer expectations.

<span class="mw-page-title-main">Medical textiles</span> Textiles for medical and healthcare use

Medical textiles are various fiber-based materials intended for medical purposes. Medical textile is a sector of technical textiles that focuses on fiber-based products used in health care applications such as prevention, care, and hygiene. The spectrum of applications of medical textiles ranges from simple cotton bandages to advanced tissue engineering. Common examples of products made from medical textiles include dressings, implants, surgical sutures, certain medical devices, healthcare textiles, diapers, menstrual pads, wipes, and barrier fabrics.

<span class="mw-page-title-main">Textile testing</span> Process of measuring the properties and performance of textiles

Textile testing is the process of measuring the properties and performance of textile materials—textile testing includes physical and chemical testing of raw materials to finished products.

The London shrunk, or London shrinkage, process was an 18th-century textile finishing process designed to preshrink wool fabrics and minimize their tendency to shrink before being used for making garments. When compared to the traditional steam shrinking method of controlling shrinkage, London shrinkage provided more permanent results in terms of reducing the likelihood of fabric shrinkage. London shrunk was found to be effective for fine worsteds, it was not typically used for woolens.

References

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