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•  Animal-based  (Protein)  fibers: Composed of      -  Filtration: Various filter media.
            proteins like keratin or fibroin, these are obtained   -  Reinforcement: Composites for aerospace,
            from animals.                                         sporting goods (e.g., carbon fiber).
          •  Wool: From sheep (and other animals like alpaca,   •  Packaging  and  containment:  Sacks,  bags,  and
            cashmere, mohair, angora).
                                                               protective covers.
          •  Silk: From silkworms.
                                                            Identification of textile fibers by using different
          •  Mineral-based fibers: Less common in general   methods
            textiles due to health concerns, but historically   Identifying textile fibers is crucial for understanding a
            included asbestos.                              fabric’s properties, care requirements, and suitability for

       2  Manufactured (Man-made) fibers: These fibers are   various applications. There are several methods, ranging
          created through chemical processes.               from simple preliminary observations to more precise
                                                            laboratory tests.
          •  Regenerated fibers (Semi-synthetic): Produced
            from naturally occurring polymers (like cellulose)   Identification methods
            that are chemically processed and reformed into   1  Sensory (Hand/feel) test
            fibers.
                                                            This is a preliminary, subjective test based on human
          •  Rayon (Viscose): Made from wood pulp.          touch and observation. It’s often the first step but requires
          •  Acetate: Derived from cellulose.               experience.
          •  Lyocell: Another form of regenerated cellulose    •  Feel
            fiber.
                                                                  -  Softness/hardness: Cotton is soft, linen is
          •  Synthetic fibers: Produced entirely from synthetic     crisp, wool can be scaly, silk is smooth.
            polymers, usually derived from petrochemicals.        -  Smoothness/roughness: Silk and rayon are
          •  Polyester: Known for durability, wrinkle resistance,   smooth, wool can be rough.
            and strength.
                                                                  -  Warmth/coolness:  Wool feels warm, linen
          •  Nylon: Strong, elastic, and resistant to abrasion.     feels cool.
          •  Acrylic: Soft, lightweight, and warm, often          -  Elasticity/resilience:  Wool  and  synthetics
            resembling wool.                                        like nylon and spandex are elastic and resist
                                                                    wrinkling. Cotton and linen wrinkle easily.
          •  Spandex (Lycra): Highly elastic with excellent
            stretch and recovery.                              •  Luster: Natural fibers often have a duller luster,
                                                                  while synthetics can be glossy.
          •  Polypropylene: Lightweight, moisture-resistant,
            and good insulating properties.                    •  Crush test/wrinkling: Squeeze a piece of fabric
       Applications of textile fibers                             tightly in your hand.
                                                                  -  Wrinkles easily: Cotton, linen, rayon.
       The diverse properties of textile fibers lead to their wide
       range of applications:                                     -  Wrinkles less/resilient: Wool, silk, polyester,
                                                                    nylon.
       •  Apparel: The most common application, including all
          types of clothing, from everyday wear to specialized   2  Burning test (Fig 2)
          sportswear and protective gear.
                                                              Fig 2
       •  Home textiles: Used in bedding, curtains, upholstery,
          carpets, towels, and decorative items.

       •  Industrial and technical textiles: Used in various
          non-apparel  and  non-decorative  applications  due
          to  their  specific  performance  characteristics. This
          includes:
          -  Automotive: Seatbelts, airbags, tire cords, interior
            fabrics.
          -  Medical and hygiene: Bandages, surgical gowns,
            diapers.
          -  Construction: Geotextiles for soil stabilization,   This is a common and relatively easy method, though it
            roofing materials.                              requires caution and proper ventilation. It distinguishes

          -  Agriculture and fishing: Nets, ropes, protective   between major fiber groups (cellulosic, protein, synthetic)
            coverings.                                      based on their reaction to flame, odor, and ash residue.

       4           Textile & Handloom: Shawl Weaving Artisan : (NSQF - 2024) R.T. Ex.No 1.1.02&07
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