Fiber component detection method 1. Hand visual inspection method: This method is applicable to textile raw materials in the state of scattered fibers. (1) Cotton fiber is shorter and thinner than ramie fiber and other hemp process fibers and wool fibers, often with various impurities and defects. (2) Hemp fiber feels rough. (3) Wool fibers are curly and elastic. (4) Silk is filament, long and slender, with a special luster. (5) Among the chemical fibers, only the viscose fiber has a large difference in strength between dry and wet states. (6) Spandex filaments have a very large elasticity and can be stretched more than five times at room temperature. 2. Microscopic observation method: The fiber is identified based on the longitudinal and cross-sectional characteristics of the fiber. (1) Cotton fiber: cross-sectional shape: waist round, with middle waist; vertical shape: flat ribbon, with natural rotation. (2) Hemp (ramie, flax, jute) fiber: cross-sectional shape: waist round or polygonal, with a middle cavity; vertical form: cross section, vertical pattern. (3) Wool fiber: cross-sectional shape: round or nearly round, some have a pulp; longitudinal form: the surface has scales. (4) Rabbit hair fiber: cross-sectional shape: dumbbell type, with pulp; longitudinal shape: scales on the surface. (5) Mulberry silk fiber: cross-sectional shape: irregular triangle; vertical surface shape: smooth and straight, longitudinally striped. (6) Ordinary viscose: cross-sectional shape: zigzag, sheath-core structure; longitudinal shape: longitudinal grooves. (7) Rich and strong fibers: cross-sectional shape: less tooth shape, or round, elliptical; vertical form: smooth surface. (8) Acetate fiber: cross-sectional morphology: trilobal or irregular zigzag; longitudinal morphology: longitudinal stripes on the surface. (9) Acrylic fiber: cross-sectional shape: round, dumbbell-shaped or leaf-like; longitudinal shape: smooth or streaked surface. (10) Chlorine fiber: cross-sectional shape: close to a circle; vertical form: smooth surface. (11) Spandex fiber: cross-sectional shape: irregular shape, round, potato-shaped; vertical shape: dark dark surface, unclear bone-shaped stripes. (12) Polyester, nylon, polypropylene fiber: cross-sectional shape: round or shaped; vertical form: smooth. (13) Vinylon fiber: cross-sectional shape: waist round, sheath core structure; vertical shape: 1~2 grooves. 3. Fluorescence method: The fiber is irradiated by an ultraviolet fluorescent lamp, and the fiber is identified according to the different properties of the various fibers, and the fluorescent color of the fiber is also different. The fluorescent colors of various fibers are specifically shown: (1) Cotton, wool fiber: light yellow (2) mercerized cotton fiber: light red (3) Jute (raw) fiber: purple brown (4) Jute, silk, nylon fiber: light blue (5) viscose fiber: white purple shadow (6) Light viscose fiber: light yellow purple shadow (7) Polyester fiber: white light is very bright (8) Vylon has optical fiber: light yellow purple shadow. 4. Combustion method: According to the chemical composition of the fiber, the combustion characteristics are also different, so that a large class of fibers is roughly divided. The combustion characteristics of several common fibers are discriminated as follows: (1) cotton, hemp, viscose, copper ammonia fiber: close to the flame: no shrinking or melting; contact with the flame: rapid combustion; leaving the flame: continue to burn; smell: burning paper smell; residue characteristics: a small amount of gray or grayish gray ash . (2) Silk, wool fiber: close to the flame: curled and melted; contact with flame: curled, melted, burned; left flame: slow burning sometimes extinguished by itself; smell: smell of burning hair; residue characteristics: loose and brittle black particles or Coke-like. (3) Polyester fiber: close to the flame: meltdown; contact with flame: melting, smoking, slow burning; leaving the flame: continue to burn, sometimes self-extinguishing; smell: special aromatic sweetness; residue characteristics: hard black beads. (4) Nylon fiber: close to the flame: melting; contact flame: melting, smoking; leaving the flame: self-extinguishing; smell: amino taste; residue characteristics: hard light brown transparent beads. (5) Acrylic fiber: close to the flame: melted; contact with flame: melting, smoking; leaving the flame: continue to burn, black smoke; smell: spicy taste; residue characteristics: black irregular beads, fragile. (6) Polypropylene fiber: close to flame: meltdown; contact flame: melting, burning; leaving flame: continue to burn; smell: paraffin flavor; residue characteristics: grayish white hard transparent beads. (7) Spandex fiber: close to flame: meltdown; contact flame: melting, burning; leaving flame: self-extinguishing; smell: specific taste; residue characteristics: white gelatinous. (8) Chlorine fiber: close to the flame: melting; contact with flame: melting, burning, black smoke; leaving the flame: self-extinguishing; smell: pungent smell; residue characteristics: dark brown lumps. (9) Vinylon fiber: close to the flame: melting; contact flame: melting, burning; leaving the flame: continue to burn, black smoke; smell: characteristic fragrance; residue characteristics: irregular focus brown lumps. Our corset cinch belt cinches your waist for an hourglass figure. The lace design adds a touch of sophistication and elegance, and wearing it will make you more confident. 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