Textile Terms - Acrylic

Acrylic - Introduction Polyacrylonitrile fiber should be translated into Chinese: Acrylic (jing lun), because it is a translation issue, it can also be recognized as "acrylic".

Acrylic Yarn Acrylic fiber is a trade name of polyacrylonitrile fiber in China, and it is called “Alon” and “Cashmere” in foreign countries. Usually refers to a synthetic fiber obtained by wet spinning or dry spinning using a copolymer of 85% or more of acrylonitrile and second and third monomers. Fibers obtained by spinning a copolymer having an acrylonitrile content of 35% to 85% are called modified polyacrylonitrile fibers.

The performance of polyacrylonitrile fiber is very similar to that of wool, and the elasticity is good. When the elongation is 20%, the resilience rate can still maintain 65%. The fluffy is curled and soft, and the warmth is 15% higher than that of wool. It is called synthetic wool. Strength 22.1 ~ 48.5cN/dtex, 1 ~ 2.5 times higher than wool. Excellent sun-proof performance, open-air exposure for one year, strength only decreased by 20%, can be made into curtains, curtains, tarpaulins, gun clothing and so on. Acid resistance, oxidant resistance and general organic solvents, but poor alkali resistance. Fiber softening temperature 190 ~ 230 °C.

Acrylic fiber is called artificial wool. With the advantages of softness, bulkiness, easy to dye, bright color, light resistance, antibacterial, and no fear of insects, it can be purely spun or blended with natural fiber according to the requirements of different uses. Its textiles are widely used in clothing, decoration, industry, etc. field.

Polyacrylonitrile fibers can be blended with wool into wool, or woven into carpets, carpets, etc., and can also be blended with cotton, man-made fibers, and other synthetic fibers to woven into a variety of clothing and interior products. Polyacrylonitrile fiber processing of the expanded tops can be purely spun, or blended with viscose fibers, wool, to get a variety of specifications in the coarse cashmere thread and fine cashmere "Cashmere."

Its main ingredient is acrylonitrile, which contains a small amount of other ingredients. Adding a small amount of other ingredients significantly improves dyeing performance. The performance is affected by the effect of temperature, and the heat treatment is often used to change the quality, such as increasing the dimensional stability. After long-term use of synthetic fibers are polypropylene, vinylon and vinylon. Research is still underway to expand the application of these fibers and improve their performance.

Acrylic - characteristic Acrylic fabric, commonly known as artificial hair, so its fabric has a soft, fluffy feel similar to wool fabric, and bright color, deeply loved by consumers. The characteristics of acrylic fiber fabrics are:

Acrylic material 1. Acrylic has the reputation of synthetic wool, its elasticity and fluffiness are similar to natural wool. Therefore, the warmth of the fabric is not under the wool fabric, even about 15% higher than similar wool fabrics.

2. Acrylic fabrics are brightly colored and lightfastness is the first of all fiber fabrics. However, its wear resistance is the worst among various synthetic fabrics. Therefore, acrylic fabrics are suitable for outdoor clothing, swimwear and children's clothing.

3. Acrylic fabrics are poor in hygroscopicity, are prone to contamination, and have a sultry feel when worn, but have better dimensional stability.

4. Acrylic fabric has better heat resistance, ranks second in synthetic fiber, and is resistant to acids, oxidants and organic solvents, and is relatively sensitive to the effects of alkali.

5. Acrylic fabric is a lighter fabric in synthetic fabrics, second only to polypropylene, so it is a good light clothing material, such as mountaineering clothing, winter warm clothing.

Acrylic-variety acrylic fabrics are available in a variety of types, including pure acrylic fabrics, acrylic blends, and interwoven fabrics. The main varieties are as follows:

Acrylic wool-like products 1. Acrylic pure fabric is made of 100% acrylic fiber. For example, worsted acrylic women's fabrics made of 100% wool acrylic fiber have loose structural features, bright color, soft and elastic feel, texture is not loose and not bad, suitable for making mid-range and low-grade women's clothing. The use of 100% acrylic fiber as raw material, can be obtained plain or twill weave acrylic fabric overcoat it, with a full-featured feel, warm and easy wool fabric characteristics, suitable for making spring and autumn winter coats, casual clothes and so on.

2. Acrylic blend fabric refers to a blend of wool or medium-length acrylic and viscose or polyester. Including nitrile/viscose lacquer, nitrile/viscous rayon, nitrile/polyester tweed, etc. Nitrile/Viscose, also known as the East, is blended with nitrile and 50% each, and it has a thick, tight, durable, smooth, soft, wool-like appearance, but with less elasticity. Easy to wrinkle, suitable for making cheap pants. Nitrile/adhesive women's type is made of 85% acrylic and 15% viscose. Most of them are made of rayon tissue. The surface of the quilt is slightly napped. The color is bright. The body is light and thin. It has good durability and poor resilience. coat. The nitrile/polyester tweed is made of nitrile and polyester which are 40% and 60% respectively blended. Because it is processed with plain weave and twill weave, it has the characteristics of flat appearance and firmness, and its disadvantage is poor comfort. Therefore, it is mostly used for the production of mid-range garments such as coats and suits.

Acrylic - The raw material for the production of acrylic fiber is the low-cost propylene produced by the cracking of petroleum: As the polyacrylonitrile copolymer is heated to above 230C, it only decomposes without melting, so it cannot be melt-spun as polyester and nylon fibers. Solution spinning method. Spinning can be dry or wet. Dry spinning speed is high, suitable for spinning silk fabrics. Very suitable for the production of short fibers, fluffy and soft, suitable for wool-like fabrics.

The polyacrylonitrile fiber has high requirements on the purity of the raw material acrylonitrile, and the total content of various impurities should be less than 0.005%. The second monomer to be polymerized is mainly methyl acrylate, and methyl methacrylate may also be used for the purpose of improving the spinnability and the handfeel, softness and elasticity of the fiber; the third monomer is mainly to improve the dyeability of the fiber, generally Itaconic Acid Containing Weakly Acidic Staining Groups, Sodium Propyl Sulfonate, Sodium Methacrylate Sulfonate, Sodium Paramethacrylamide Benzene Sulfonate Containing Strongly Acidic Coloring Groups, -methyl Groups Containing Alkaline Staining Groups Vinyl pyridine and so on. [1]

Acrylic - Performance Acrylic Sweater Elasticity: It has good elasticity, second only to polyester, about 2 times higher than nylon. Better shape retention.

Strength: Although the strength of acrylic is not as good as polyester and nylon, it is 1 to 2.5 times higher than wool.

Heat resistance: The fiber softening temperature is 190 ~ 230C, second only to polyester in synthetic fibers.

Lightfastness: The lightfastness of acrylic is the best open-air exposure in all synthetic fibers for a year, and its strength is only reduced by 20%.

Acrylics are resistant to acids, oxidants and common organic solvents, but are not resistant to alkalis. Acrylic finished products have good fluffiness, good warmth, soft hand feeling, good weather resistance, mildew proofing and anti-mite performance. Acrylic warmth is about 15% higher than wool. Acrylic can be blended with wool. Most of the products are used in civilian applications such as wool, blankets, knit sportswear, tarpaulins, curtains, artificial fur, and plush. Acrylic is still a high-tech product - the raw material of carbon fiber. [1]