Which is better, spandex fabric or milk silk?
Milk silk is a soft fabric, which is a little cold to wear, while spandex fabric is a very elastic fabric, which is usually used in tights, sportswear, protective belts and soles.
1. What fabric is spandex?
Spandex is a kind of polyurethane fiber, which is also called elastic fiber because of its excellent elasticity. It is widely used in clothing fabrics and has the characteristics of high elasticity. It is mainly used to make tights, sportswear, protective belts and soles. Its varieties can be divided into warp elastic fabric, weft elastic fabric and warp-weft elastic fabric according to the needs of use. At present, fabrics are mostly natural fibers and man-made fibers. For example, cotton is a kind of natural fiber, which has good air permeability and hygroscopicity, but its elasticity is poor and it is easy to deform. Man-made fiber, as its name implies, is a kind of fiber synthesized artificially according to demand, which solves some shortcomings of natural fiber. Spandex, a polyester fiber made of synthetic fiber, is also called elastic fiber because of its excellent elasticity. Generally, spandex with different proportions is mixed into clothing fabrics to increase elasticity and comfort, which is widely used.
2. What fabric is milk silk?
Milk silk is the material that many close-fitting clothes will choose now, so there is no need to worry about stabbing people, and the comfort is particularly high. Milk silk is milk protein obtained by defatting and dehydrating liquid milk, adding softener to make milk slurry, and then spinning into milk protein fiber through wet spinning process and scientific treatment, and further spinning into woven milk silk. No formaldehyde azo auxiliaries or raw materials are used, and the formaldehyde content of the fiber is zero; Rich in 18 kinds of amino acids beneficial to human body, it can promote cell metabolism, prevent skin aging and itching, and nourish skin; It has natural moisturizing factor, so it can keep the moisture content of skin, make skin soft and smooth, reduce wrinkles, and has broad-spectrum antibacterial function and strong durability. The natural antibacterial function is over 99%, and the antibacterial rate is over 80%.
Which is better, milk silk or pure cotton fabric?
1, milk silk is smooth, elastic, non-deformable, poor in air permeability and drainage ~ cotton is breathable and sweat-wicking, strong in water absorption and comfortable to the skin ~ but the disadvantage of cotton is discoloration and deformation. Milk silk clothes look good, but they are certainly not as comfortable as cotton.
2. Cotton that is more suitable for wearing cotton in summer has better air permeability and higher sweat absorption, while milk silk is not as breathable as cotton. Pure cotton absorbs sweat, but milk silk is super comfortable and slippery in summer. Personally, I prefer shredded milk because I feel very wet after absorbing sweat.
Does milk silk fabric pilling?
Real milk silk fabric is not easy to pilling. Milk silk fabric has a cashmere-like feel, with fine denier per filament and light specific gravity. The elongation at break, crimp elasticity and crimp recovery rate are closest to cashmere and wool, and the fiber is fluffy and soft, with a soft, comfortable and smooth feel, resembling cashmere. The fiber is white, with silky natural luster, elegant appearance, pilling resistance, light fastness and perspiration fastness reaching grade 4~3, and it is easy to dry. The cross section of milk protein fiber is irregular and round, with gaps in the cross section and many grooves in the longitudinal direction. Protein molecules are distributed on the fiber surface, and contain natural protein moisturizing factor and a large number of hydrophilic groups, which can quickly absorb human sweat, quickly introduce it into the air through the grooves and distribute it, so that people's skin is always dry, and the anti-pilling performance reaches grade 3-4. Milk silk fabric is the most potential fiber at present, which can be blended with other fabrics, so it can also be used to produce sportswear, casual clothes, shirts, high-grade ready-to-wear fabrics and so on.
How to identify milk silk fabric
First, the combustion identification method
1. Approaching flame: melting and curling.
2. Fusion flame: curling, melting and burning.
3. Leave the flame: it burns and sometimes goes out by itself.
4. Smell when burning: hair burns.
5. Residue characteristics: black, basically brittle, but there are few lumps.
Second, the dissolution identification method
When milk protein fiber is heated in 2.5%NaOH solution at 100℃ for 30 minutes, the unique phenomenon of milk protein can appear.
Status: During the whole dissolution process, the volume of the fiber keeps expanding, and gradually becomes jelly-like, and the color will gradually change from natural color to deep red, and then fade from deep red to light yellow.
Results Analysis: If the burning flame has the burning smell of hair just after extinguishing, and the dissolution result conforms to the jelly-like and unique color reaction, the sample is milk protein fiber.