First: identification of fabric components The easy way […]
First: identification of fabric components
The easy way to identify the composition of the fabric is the burning method. The method is to draw a yarn containing warp and weft yarns at the seam of the garment, ignite it with fire, observe the state of the burning flame, smell the smell of the yarn after burning, and see the residue after burning to judge. Whether it is consistent with the fabric composition marked on the clothing durability label to identify the authenticity of the fabric composition.
1. Cotton fiber and hemp fiber
Both cotton fibers and hemp fibers are flammable when they are close to the flame, burning rapidly, the flame is yellow, and blue smoke is emitted. The difference between the odors emitted by the two during combustion and the ashes after burning is that the burning of cotton gives off the smell of paper, and the burning of hemp gives off the smell of plant ash; after burning, cotton has very little powder ash, which is black or gray, while hemp produces a small amount of off-white powder ash.
2. Wool fiber and silk
When the hair is exposed to fire, it emits smoke, foams when it burns, the burning speed is slow, and it emits a burnt smell of burning hair. When exposed to fire, the silk shrinks into a ball, and the burning speed is slow, accompanied by a sizzling sound, exuding a burning smell of hair, and after burning, it forms black-brown spherical ashes, which are broken when twisted by hand.
3. Nylon and polyester
The scientific name of nylon is polyamide fiber. It quickly crimps and melts into a white gel when near the flame. It melts and drips and foams in the flame. There is no flame when burning. It is difficult to continue to burn when it leaves the flame. Things are not easily crushed. The scientific name of polyester is polyester fiber. It is easy to ignite, and it melts near the flame. When burning, it melts and emits black smoke. It has a yellow flame and emits a fragrant smell.
4. acrylic and polypropylene
The scientific name of acrylic fiber is polyacrylonitrile fiber. It softens and shrinks near fire, emits black smoke after ignition, and the flame turns white. . The scientific name of polypropylene fiber is polypropylene fiber. It melts near the flame and is flammable. It burns slowly and emits black smoke from the fire. The upper end of the flame is yellow and the lower end is blue. broken.
5. vinylon and vinylon
The scientific name of vinylon is polyvinyl formal fiber. It is not easy to ignite. It melts and shrinks near the flame. When burning, there is a little flame at the top. When the fiber is melted into a jelly, the flame becomes larger, there is thick black smoke, and it emits a bitter smell. After burning, it remains black. Small bead-like particles that can be crushed with fingers. The scientific name of polyvinyl chloride fiber is polyvinyl chloride fiber. It is difficult to burn, and it will be extinguished immediately after leaving the fire. The flame is yellow, and the lower end is green and white smoke.
6. Spandex and Fluorine
The scientific name of spandex is polyurethane fiber. It burns while melting near the fire. When burning, the flame is blue. When it leaves the fire and continues to melt and burn, it emits a special pungent odor. After burning, the ashes are soft and fluffy black ash. The scientific name of fluorine is polytetrafluoroethylene fiber, which is called fluorite fiber by the ISO organization. It only melts near the flame, is difficult to ignite, and does not burn. The edge flame is blue-green carbonized, melted and decomposed, the gas is poisonous, and the melt is hard and round black. beads. Fluorocarbon fibers are commonly used in the textile industry to make high-performance sewing threads.
7. viscose fiber and cupro ammonium fiber
Viscose fiber is flammable, burns very fast, the flame is yellow, the smell of hot paper is dissipated, the ashes are few after burning, and it is a smooth twisted band-shaped light gray or gray-white fine powder. Copper ammonium fiber, commonly known as tiger kapok, burns near the flame, the burning speed is fast, the flame is yellow, and the ester acid smell is emitted.
Second: identification of pure wool fabrics
Pure wool fabrics are naturally soft in color and have a good thermal insulation effect. They are the first choice for making high-end suits and coats. But now there are more and more imitation wool fabrics. With the improvement of textile technology, it has reached a level that is difficult for most customers to identify, but the color, warmth and hand feel are far less than pure wool fabrics. Here are a few ways to identify pure wool fabrics for your reference when choosing clothing and fabrics.
1. Touch feeling. Pure wool fabrics usually feel smooth to the touch, while long-haired fabrics are smooth to the touch along the fur, and tingling against the fur. As for the blended or purified fibers, some are not soft, some are too soft and loose, and have a sticky feeling.
2. Look at the color. The color of pure wool fabric is natural and soft, bright and not old. In contrast, blended or purified fiber fabrics are either duller or shimmering.
3. Look at elasticity. Tighten the thing by hand, and then release it immediately to see the elasticity of the fabric. Pure wool fabrics have a high rebound rate and can quickly return to their original state, while blended or chemical fiber products have poor wrinkle resistance, and most of them have obvious wrinkles or slow recovery.
4. Identification by combustion method. Take a bunch of yarn and burn it with fire. The smell of pure wool fiber is like burning hair, and the smell of chemical fiber fabric is like burning plastic. The harder the particles after combustion, the more chemical fiber components.
5. Single root identification. The hair of all animals is scaly under the microscope. If it is a long-haired fabric, just take a woolen wool and rub it a few times and it will move up or down (in order to master this skill, you can first take a hair and do Test), if it is an ordinary fabric, take a piece of yarn, cut two 2 cm pieces and dismantle them one by one, put them in the palm of your hand and rub them four or five times to see if they will move.
Hangzhou Yaolong Zhizao Co.ltd is located in Linping, Yuhang District, which is the famous silk town of Zhejiang. The traffic is very convenient. our factory registered capital is 5 million yuan and covers an area of 17,000 square meters. We have more than 100 employees, and a complete set of production process equipment and strong technical production, as a professional China Dyed Cashmere Scarves Factory and China Cashmere Scarves Company, we are specializes in the production of jacquard scarves, shawls, dyed cashmere scarves, dyed casual scarves and scarves as gifts, which can meet different levels of customer requirements at home and abroad. We provide a one-stop service, such as scarf sample processing, and scarf OEM processing. Our wholesale dyed cashmere scarves are mainly exported to Japan, South Korea, Europe, America, Africa and other dozens of countries