Silk Fabric Process Classification

Classification by ingredient process

Blanket, white silk, bleached silk, cooked silk, flash silk

1. Silk : mulberry silk (mulberry), tussah silk (xylem), mulberry silk (mulberry), silk (柞绢), mulberry silk (mulberry), yam silk (equiaxial), ramie The general term for silk (蓖).
2. Viscose Rayon (Viscose) : The general name of the regenerated cellulose fiber made by the viscose method. It is the main rayon and the main raw material for human silk. Production process: the use of wood, cotton linters and other cellulose as raw materials made of paper, and then immersed in 18-25 ° C concentrated (18% up and down) sodium hydroxide solution 1-2h, and then pressed to the quality of pulp 2.6 -2.8 times to produce alkali cellulose. After crushing, aging, processing carbon sulfide yellowing to produce cellulose esters, and then dissolved in a balance of sodium hydroxide solution to become viscose. After aging, defoaming and filtering, the viscose is pressed into a coagulation bath composed of sulfuric acid, sodium sulfate and a small amount of zinc sulfate to solidify, regenerate, and stretch into filaments from the fine holes of the spinneret through a spinning machine. Then, it is wound into cakes, washed with water, desulfurized, bathed in white, oiled, and dried to become viscose rayon.
3. Viscose rayon : (scientific name: viscose fiber, denomination: viscose fiber) The raw material and production method are the same with viscose rayon, except that the spinning machine presses in from the pores of the nozzle by sulfuric acid, sodium sulfate and a small amount of zinc sulfate. The resulting coagulation bath solidifies, regenerates, and stretches to form filaments. After being bundled and drawn, it is cut into short fibers of a suitable length, desulfurized, bleached, oiled, and dried to make rayon. The spinning machine then spins the yarn.

4. Copper-ammonia rayon (copper ammonium filaments)
: Dissolved in a copper complex salt solution consisting of copper tetra-ammonium hydroxide {Cu(NH3)4COH2} using fine wood pulp and cotton linter pulp as raw materials. A spinning solution was made from the cuprammonium solution and spun after mixing and filtering and defoaming. With water as a coagulation bath, water forming is "funnel spinning." The cellulose is then completely regenerated by an acid bath, washed with water, oiled, and dried to form copper ammonia rayon.

5. Acetate Rayon (Acetate Filament)
: Using cellulose as raw material, high-purity alpha cellulose is generally used as the raw material. In the presence of a catalyst and acetic anhydride, the hydrogen atoms of the hydroxyl groups on the molecule are The acetyl group is substituted to produce cellulose triacetate. The acetification reaction can be carried out in an asymmetrical state (mainly used for wet prevention of fibers), and direct spinning can also be performed in the homogeneous state. Similar gloss.

6. Nylon yarn (Nylon in short, Nylon in filament)
: Custom: nylon, nylon, capron. It is composed of macromolecules that are linked by amide chains and aliphatic or alicyclic groups. According to the number of carbon molecules of the polycondensation component, each corresponding aliphatic polyamide fiber is abbreviated. Such as polyamide monomer polymerization. Polyamide 66 fiber is a polycondensation of adipic acid containing 6 carbon atoms. Gloss is divided into half light and light. The appearance is like silk, and the fabric used as raw material is said to be thick.

7. Cotton and nylon yarn (short yarn called polyester, filament called polyester yarn)
: Common name: polyester, it is indeed cool. It is composed of macromolecular polyester molecules synthesized from monohydric alcohols and dibasic acids or W-hydroxy acids. Fibers were made by solution spinning and then processed into filaments. The appearance is like silk, and the fabric used as raw material is said to be thick.

8. Vinylon (short-fiber called Vylon, filament called Vylon)
: commonly known as: nylon, nylon yarn. Saponified polymer from polyvinyl acetate.

9. Acrylic silk (Acrylic called acrylic, Filament Acrylic)
: Common name: Austenite, Cashmere, Aikland. The polymerization of acrylonitrile is called. The polymerization of acrylonitrile is a free stem chain reaction, and the solution polymerization method is often used in production. According to the different solutions (media) used, it can be divided into homogeneous solution polymerization and heterogeneous solution polymerization. The solvent for the solution is a concentrated aqueous solution of sodium thiocyanate, dimethyl sulfoxide, dimethyl amide, etc.; the heterogeneous solution uses multiple water as the medium, and the polymer continuously precipitates during the polymerization process. The homogenous solution polymerization polymerization solution is directly spun into an acrylic fiber.

10. Polypropylene fiber
: (Scientific name: Polypropylene fiber. Commonly known as polypropylene, Palen. Named, short-fibre polypropylene, and filament polypropylene fiber). (c) Polymers polymerized from propylene.

11. Polyurethane silk
: (Scientific name: Polyvinyl chloride fiber. Commonly known as “No Merron, Chlorophyll. Name: Short silk called Kevlar, Filament called Pillows.) (Chlorine) from vinyl chloride via free radical polymerization Made of polymer compounds.

12. Cotton yarn (cotton)
: Spinned into yarn with cotton.

13. Wool (hair)
: Spinning yarn into yarn.

14. Hemp (hemp)
: The yarn is spun with ramie, jute, and flax fibers. The common specifications are the same as cotton yarn.

15. Money line leather (aluminum)
: not resistant to high temperatures, with aluminum foil bonded between two layers of cellulose acetate butyl film, kao transparent adhesive bonding, aluminum skin color decided to add in the adhesive Vinegar color. For cooked fabrics that do not require refining.

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Special Varieties Of Non-woven Fabric

Special varieties of non-woven fabric refers to the PP non-woven fabric production project to add some other auxiliary materials, change the characteristics of non-woven fabric, so that the non-woven fabric has some corresponding characteristics.
For example, the addition of anti-aging agents can effectively slow down the aging speed of non-woven fabrics in the natural environment, and extend the service life and number of use of non-woven fabrics.
For example, adding flame-retardant master batch makes the non-woven fabric have a certain blocking effect on the open fire. Flame retardant non-woven fabric can isolate the flame to a certain extent, block the direct contact between the open fire and flammable materials, and ensure the safety of products to a certain extent.

For example, by adding elastic agent in the production process of non-woven fabric, the horizontal and longitudinal tensile force of non-woven fabric can be magnified many times, and the softness can also be improved. This kind of high-elastic non-woven fabric can be used to make ear belts of masks, shopping bags and so on, which has a very good ductility.

In addition, non-woven cloth can also add water repellent and hydrophilic agent and other special reagents, change the characteristics of non-woven cloth, so that it can meet the needs of customers.

Industrial Nonwoven Fabrics,Antistatic Nonwoven Fabric,Antibacterial Nonwoven Fabric,British Standard Flame Retardant Non-Woven Fabric

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