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Identification of rayon, silk and polyester yarn Rayon, silk and polyester yarn are several kinds of "silk" commonly found in textile fabrics. They are similar in appearance, but their prices and performance are quite different. However, many people do not distinguish well because they are similar, but they suffer a big loss when they arrive. This article Xiaobian with everyone to come and meet these kinds of "silk."
Rayon: bright luster, feels slightly rough, and has a feeling of dampness and coldness. It is released by hand and wrinkles, wrinkles are more, there are still marks after flattening, the cloth is pulled out with a tongue, and the rayon is straight. Easy to break, broken. The elasticity is different when wet and dry. The silk is soft and soft, soft to the touch, delicate in texture, and can emit a special sound when they are smashed together, commonly known as "silk" or "sounding". After the hand is rubbed and released, the wrinkles are less and not obvious, and the silk has the same wet and dry elasticity.
Polyester silk: strong reflective, high rigidity, quick rebound, crisp, good anti-wrinkle performance, strong and not easy to break.
Silk: Silk generally refers to silk, including silk, tussah, ramie silk, cassava silk and so on. The following methods can be used for consumer identification of silk fabrics.
I. Item number identification method: The domestic satin implements a unified product number consisting of 5 Arabic numerals. The 5 digits from the left indicate the material number of the fabric, and the whole silk fabric (including silk and silk). 1", the chemical fiber fabric is "2", the blended fabric is "3", the tussah silk fabric is "4", and the rayon fabric is "5".
Second, the price identification method: the price of silk fabric is about twice that of chemical fiber and simulated silk satin. Third, the gloss, feel recognition method: the sample is evenly distributed to see its appearance, the silk has the performance of light absorption, it looks smooth and does not have a mirror surface, the gloss is elegant and soft, the pearl is bright, the hand feels soft and elegant, the silk thread is dense, the hand will catch Wrinkles, the higher the purity, the higher the density of the silk feels better; the silk fabric has been softened, but the silk surface is dark and has no pearl luster; the chemical fiber fabric is bright, glare, and feels stiff. .
In addition, the silk product should have a slight feeling of scratching the hand. Rubbing the two layers of fabric will produce a "silk" sound, while the fabric of other raw materials does not.
Fourth, the combustion method:
Some of the yarns are burned, the silk can't see the open flame, the smell of burning hair, the silk is gray and it can be crushed by hand; the silk is fired with the fire, the plastic smell, the edge will be hard after the fire is extinguished. The rubber block.
The silk shrinkage rate is higher. The finished product should be selected to be larger than the actual demand. If it is a fabric, the fabric should be immersed in clear water for more than 5 hours before the production, so that the fabric completely absorbs moisture, then dried, and then soaked. 2 times, after the two dipping and drying, the silk will not be deformed, and the clothes can be washed at will. However, if you choose the high-grade goods in the silk, it is best to take the dry cleaning, so that the fabric does not need to be soaked beforehand.
The characteristics of polyester silk are resistant to chemicals and frequent washing, reducing the discoloration and discoloration of clothing.
Therefore, hotel uniforms, stone-brushed blue denim, sportswear or children's clothing are made of polyester yarn.
Relatively speaking, polyester yarn is tougher than rayon. When embroidering, the machine runs at high speed, and the polyester yarn with high toughness can withstand large pulling force, and its fireproof performance is extremely high, even if the clothes are close to the flame, it is not easy to catch fire.
The rayon is bright, the hand feels slightly rough, and it has a feeling of dampness and coldness. It is released by hand and is loosened. The wrinkles are more. After the flattening, there are still marks. The cloth is pulled out with the tongue and the rayon is straight. Broken and broken. The elasticity is different when wet and dry.
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