Before the emergence of synthetic dyes, cotton fibers were dyed with plant dyes, mineral dyes and animal dyes until Leeds, England in 1880 Thomas and Robert Holliday of Holliday company developed the application of insoluble azo dyes (ice dyes) on cotton cloth by using the diazo of naphtholamine and sodium naphthol solution. In 1912, ice dye became

Weft knitted fabrics are separated in one direction due to the particularity of their coil structure and knitting process. Therefore, in the process of wearing, using or washing knitted products, if a yarn breaks or the coil loses the string connection, the coil will be separated from the broken yarn along the longitudinal line under the action of

The general process of sewing is: grey cloth inspection, material laying, cutting, sewing, ironing, quality inspection and evaluation, folding packaging, etc. Sewing is not only an important link in the process of fabric garment, but also a key factor determining the quality of garment. In the process of fabric sewing, improper treatment of fabric,

Knitting industry is an important part of textile industry. Knitting is a technological process that uses knitting needles to form coils of various raw materials and varieties of yarns, and then connect them into knitted fabrics through string sleeves. Knitted clothing is widely recognized by people for its soft, comfortable and elastic properties.

According to the color fixing principle of the color fixing agent, after introducing the active group into the PDMDAAC color fixing agent, the active group in the structure can be used to covalently cross-linked with the hydroxyl group on the fiber fabric to improve the color fixing performance. Four cationic monomers can be used for copolymerizati

Reactive fixing agent ED-ZED-Z color fixing agent is a resin type color fixing agent integrating the functions of salt bond bonding, functional group reaction, molecular film layer protection and metal ion complexation. It is a prepolymer with polyamine and epichlorohydrin as the main components, which is similar to the resin primary shrinkage. Its

Chlorine in tap water is the main reason for the color change and even fading of dyed fabrics. When washing clothes, the dye reacts directly with available chlorine, and the dye is oxidized to fade and change color. Even a small amount of chlorine will degrade dyes, especially reactive dyes, and the color of clothing will change during washing.It i

PDMDAAC is a polycationic fixing agent, it is mainly used for fixing reactive dyes, and generally does not produce discoloration and reduce light fastness. PDMDAAC is prepared by the reaction of dimethylamine and allyl chloride in the presence of alkali to produce dimethyl diallyl ammonium chloride (DMDAAC), and then the monomer is polymerized by f

Color fixing agent SH-96Polyamine type color fixing agent is formed by the reaction of diethylenetriamine and dicyandiamide, condensation, deamination and cyclization into imidazoline structure, and then polycondensation to form polymer compound. The measured degree of polymerization is small (n is generally 6-8), which can be dissolved in water.Co

Waxes are also widely used in wool textile mills. Fabric lightness is the direction of wool textile product development, which puts forward higher requirements for the weavability of wool yarn. In normal production, the strength, thickness and hairiness of wool yarn seriously restrict the weaving ability of wool yarn, and waxing can easily and effe

Waxing of shuttle bottomWith the higher and higher requirements of customers for the physical quality of grey cloth, many textile factories began to implement the four point system standard in order to reduce the residual defects on the cloth surface and reduce the amount of fabric repair. Burr and weft removal are a kind of defects with a very lar

Waxing after sizing In textile mills, post waxing is a sizing process often used, especially when weaving high-grade fabrics, the sizing rate is generally high, and the sizing film is hard and brittle. The post waxing process can not only increase the softness and wear resistance of the slurry film, but also prevent the damage of the slurry structu

Wax agent is mainly used as softener and sizing aid in textile. Emulsified wax is used as sizing agent for yarn. Because countless uniform and fine wax grains are attached to the yarn, the softness and lubricity of the fabric are significantly improved, so that the fabric quality and loom efficiency are improved. In textile production, whether cott

Wetting waxing agent The sizes used in textile industry mainly include polyvinyl alcohol, polyacrylic acid and modified starch. These sizes have good softness and adhesion, but they also have some disadvantages, such as high re viscosity, high moisture absorption and poor smoothness. In general, the textiles with wetting and waxing agent will make

Textile wax is one of the most commonly used auxiliary materials in textile processing. In the process of product processing and making, fibers can be purified, compensated, washed and bleached through the treatment of textile wax, so as to make up for the natural wax that has been removed, so that the textile can regain its original elasticity, wi

Wax emulsion is one of the most important special wax products. It is a homogeneous liquid containing wax and water. When it is used, it does not need to melt or dissolve in some solvents. It has the properties of stable performance, uniform film formation, good coverage, easy to be mixed with other substances in aqueous solution or emulsion, and i

Wax emulsion is a stable emulsion composed of paraffin wax and several different kinds of emulsifiers and proper regulators. It is generally used for different raw materials, different raw materials, different emulsifiers, different emulsifying processes, and different quality of applied wax emulsions according to different requirements, but the co

Wax emulsion is one of the most important special wax products. It is a homogeneous liquid containing wax and water. When it is used, it does not need to melt or dissolve in some solvents. It has the advantages of stable performance, uniform film formation, good coverage, easy to mix with aqueous solution or emulsion of other substances, and is non

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