Since the underwear is close to the human skin, the choice of the fabric is particularly important, especially for sensitive skin or skin with ailments, if the underwear fabric is improperly selected, it may cause harm to the human body.
The fabric is woven from yarn and the yarn is composed of fibers. Therefore, the characteristics of the fabric are closely related to the fibers of the constituent fabric. In general, fibers are divided into natural fibers and chemical fibers. Natural fibers include cotton, hemp, silk, wool, etc. Chemical fibers include recycled fibers and synthetic fibers. Recycled fibers include viscose fiber, copper ammonia fiber, acetate fiber, etc.; synthetic fibers are polyester, acrylic, nylon, and the like. At present, traditional underwear fabrics are mostly made of cotton, silk, hemp, viscose, polyester, nylon, and the like.
Natural fiber
Cotton, silk and hemp in natural fiber have good moisture absorption and breathability, and are ideal fabrics for underwear. Among them, silk is the best. Its soft and smooth handfeel and pure color are all kinds of fabrics for all seasons. No matter how it is used, the soft touch of the ribbon to the human body is beyond the reach of other fabrics. Cotton and hemp are also important fabrics for underwear, especially cotton and linen blends have good moisture absorption and breathability. If you are often sweaty in summer, it is recommended that you choose cotton and linen blended underwear.
However, natural fibers have poor shape retention and stretchability, and they are incapable of repairing underwear, and chemical fiber is an advantage. Therefore, in order to make the two fibers each have their own advantages, it is often used to blend natural fibers and chemical fibers, to achieve the desired blending ratio, or to use different fiber fabrics in different parts. For example, the bra cups are made of hygroscopic cotton, while the sidebands are made of elastic and chemical fiber fabrics, so that they are long. At present, many underwears use a double-layer design, that is, a layer close to the skin is made of natural fiber, and a layer of the surface is made of beautiful chemical fiber lace, which is both beautiful and comfortable, and it can be said to kill two birds with one stone. This underwear is thicker and suitable for winter.
Sensory recognition method:
The sensory method requires a certain amount of experience, but it is not difficult to do it. As long as you go shopping in the mall, you will deliberately touch various fabrics, and you will gain something over time.
The fibers can be roughly separated from the following four aspects:
1, feel: very soft is silk, viscose, nylon.
2, weight: lighter than nylon, nylon, polypropylene; cotton is heavier than cotton, hemp, viscose, rich fiber; similar to the weight of silk is vinylon, wool, vinegar fiber, polyester.
3, strength: stretched to break by hand, weaker strength is glue, vinegar fiber, hair; strong is silk, cotton, hemp, synthetic fiber, etc.; after wetting, the strength is significantly reduced is protein fiber, sticky Glue, copper ammonia fiber.
4. Elongation: When stretching by hand, the hair and vinegar fiber are more likely to be stretched; the smaller ones are cotton and hemp; the moderate ones are silk, viscose, fiber and most synthetic fibers.
Feel recognition method:
1. The silk feels soft and elastic. When it is light, it has a silky sound and a cool feeling. The rayon has a rough feel and is not wet.
2, the silk is softer, bright but not glaring; the rayon is similar to metal.
3. Grab the fabric and release it. The folds of the silk are less than the rayon.
4, the water drops on the fabric, hand rubbing, rayon is easy to break, the silk is more firm.
Sensory feature recognition method:
Cotton - Slim and soft, small elasticity, easy to wrinkle.
Hemp - feels rough and often has a flaw.
Silk - shiny, soft and light, with a rustling sound when caught, and a cool feeling.
Wool - elastic, soft luster, warm hand, not wrinkled.
Polyester - good elasticity, smooth, strong, stiff, cool.
Nylon - not easy to break, elastic, smooth, light texture, not as soft as silk.
Velon - similar to cotton, the gloss is dark, not as soft as cotton, the rebound is not good, and it is easy to wrinkle.
Acrylic fiber - good thermal insulation, high strength, lighter than cotton, soft and fluffy.
Viscose fiber - softer than cotton, with a stronger surface than cotton but with poor fastness.
Signage identification method:
The limitation of the sensory method is that it is coarser and the application is not wide, and it is powerless for synthetic fibers and blended fabrics. For some reputable shopping malls or underwear brands, you can know the fabric components of underwear by directly identifying the sign. These signs can only be hung by the inspection of textile quality inspection agencies and are highly authoritative. Generally, there are two contents on the label, one is the fiber name, and the other is the fiber content (generally expressed as a percentage). Sometimes you will find that the name of the fiber on the sign is in English and it seems very laborious. The Chinese and English names of some common fibers are listed below.
Cotton Cotton Acrylic Acrylic Linen Spandex Polyurethanes
Wool Wool Polypropylene Polypropylene Silk Polyvinyl Chloride Viscose Rayon Copper Ammonia Fiber Cuprammonuium (Cupro)
Polyester Polyester Acetate Polyamide Polyamide Nylon Polyester Polythane (Elastan) Vinyl Vinal Rayon Nitrocellulose Silk
Common textile fiber burning characteristics:
Fiber: Near-flame phenomenon. After the flame is separated from the flame, it smells ash. Cotton: The near flame is burning, burning faster, there is little aftertaste, soft, black or gray hair: melting away from flame, melting and burning Combustion, will self-extinguish, burn feathery, brittle, brittle, black silk: melted away from the flame, there is a silk sound when burning, it is difficult to continue burning, it will self-extinguish, and it will splash, burn feathery, brittle and brittle when burning , black hemp: near flame is burning, there is a popping sound when burning, continuous burning smoke, afterglow, with cotton viscose: near flame is burning, burning, continuous burning, no quick afterglow, burning paper mixed with chemical smell, except for the lightless There is no ash outside, and there is a small amount of black ash between them.
Nylon: The near flame is melted, melted, dripped and foamed. It does not directly burn. The celery tastes hard, round, light, brown to gray. The pearly polyester: the near flame is melted, melted, and can continue to burn. A few sweet and hard rounds with very weak smoke, black or light brown acrylic melt: near flames are burning and burning and burning, splashing weak and spicy hard black, irregular or beaded.
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