The Classification And Characteristics Of Silk

Mulberry silk (Mulberry), tussah silk (tussah), Sang Juansi (Sang Juan), Zuo Juan silk (Zuo Juan), Sang Zhousi (Sang Zhou), tussah shafts (equal axis), and ricinus spun silk (Castor).

Viscose rayon (viscose rayon): the general name of regenerated cellulose fiber made from viscose method. It is the main artificial silk and the main raw material of human silk.

The manufacturing process is made from wood, cotton lint and other cellulose as raw material, and then soaked in the sodium hydroxide solution of - C (% up and down) -h, and then pressed to the pulp quality times, forming alkali cellulose.

The cellulose yellow ester is formed by crushing, aging and processing carbonization, and then dissolves in the sodium hydroxide solution to become viscose.

After ripening, defoaming and filtering, the viscose is pressed into the coagulation bath consisting of sulphuric acid, sodium sulphate and a small amount of zinc sulfate through the pores of the spinneret, and then solidified, regenerated and stretched into silk.

Then the winding cakes were washed, desulphurized, bathing, white, oiled and dried to become viscose rayon.

Viscose rayon: (scientific name: viscose fiber.

Denomination: Viscose) raw materials and methods of production with viscose rayon, only in the textile machine from the nozzle of the hole into the sulfuric acid, sodium sulfate and a small amount of zinc sulfate in the coagulation bath, solidification, regeneration, stretching to form silk, and then after the cluster cut into a suitable length of short fibers, and then desulfurization, bleaching, oiling and drying for artificial cotton.

Spinning again through the spinning machine.

Cuprammonia rayon (copper and copper wire): the mixture of fine wood pulp and cotton lint pulp is mixed and filtered and defoaming.

Taking water as coagulation bath, the water method is formed in "funnel spinning".

Then the cellulose is completely regenerated through acid bath, then washed, oiled and dried to make copper ammonia rayon.

(acetic acid): cellulose is used as raw material. The refined cotton linen pulp of high purity cellulose is used as raw material. In the presence of catalyst, acetic acid is used to react with the hydrogen atom of the hydroxyl group on the molecule, which is replaced by acetyl group to form three cellulose acetate ester.

Acetic acid reaction can be carried out under heterogeneous conditions (mainly for wet prevention) and direct spinning in homogeneous state.

Shiny silk resemble mulberry silk.

Nylon yarn (short silk called nylon, filament called nylon filament): Xi: nylon, nylon, Kapp lung.

It consists of amide chains linked to aliphatic groups or aliphatic rings.

The corresponding aliphatic polyamide fibers are referred to according to the number of carbon molecules in the polycondensation component.

Such as polymerization of polyamide monomers.

Polyamide fibers are formed by condensation of adipic acid containing carbon atoms.

Gloss is divided into semifluid and glossy.

It resembles silk like silk and is made from its raw material.

(short silk is called acrylic fiber, and filament is called acrylic fiber): Xi Lan, cashmere, cashmere, and AI crane.

The polymerization of acrylonitrile is called.

The polymerization of acrylonitrile is a chain reaction of free stem type.

According to the different solution (medium), homogeneous solution polymerization and heterogeneous solution polymerization can be divided.

The solution of the solution is concentrated aqueous solution of sodium thiocyanate, two methyl sulfoxide, two methyl amide, etc. the aqueous solution of the heterogeneous solution is used as the medium, and the polymer is precipitated and precipitated in the polymerization process.

The polymerization solution obtained by homogeneous solution polymerization directly spun into acrylic fiber.

Polyvinyl chloride fiber: (scientific name: PVC fiber).

Xi said, no beauty dragon, chlorine fiber.

Name: short silk is called polyvinyl chloride, and filament is called polyvinyl chloride fiber.

(chlorine) a polymeric compound formed by free radical polymerization of vinyl chloride.

Money thread leather (aluminum skin): it is not resistant to high temperature. It is bonded with aluminum foil between two layers of cellulose acetate butyl acetate film. Kao pparent adhesive is bonded. The color of aluminum skin determines the color of acetate fiber added to the adhesive.

For non woven fabrics.