Natural pure cotton fiber fabric has outstanding characteristics, such as air permeability, moisture absorption, softness and comfort, due to the fact that its molecular structure contains more hydrophilic groups and low crystallinity. In addition, it has many advantages such as low cost, friendly price and degradability. It has a broad market, con

Acidified wax Acidified wax is a kind of wax product that grafts carboxyl or anhydride and directly introduces it into the wax structure. The more common varieties usually include the following: Garment bran acidified wax, Fuma acidified wax and maleated wax. It is characterized by simple structure and light color. In addition, it not only has stab

Oxidized wax is a kind of wax that has been contacted and studied earlier in China, mainly including the following kinds: oxidized paraffin, oxidized microcrystalline wax and oxidized polyethylene wax. At present, with the continuous progress of technology, oxidized paraffin has been quite mature, but its performance in heat resistance, polishing,

Wax is a complex mixture of organic compounds. Different kinds of waxes have different compositions and properties. They are classified according to their sources, mainly including natural waxes and synthetic waxes. The former comes from natural existence, and there are mainly three kinds: animal wax, plant wax and mineral wax; The latter comes fro

Polyethylene wax is a kind of polyethylene with low molecular weight. Its melt viscosity is very low and has the characteristics of wax. The general degree of polymerization is 100 ~ 300 and the number average relative molecular weight is 2000 ~ 10000 It has stable chemical properties, smooth feel, good wear resistance and high hardness. It is wide

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

Antifouling finishing is usually achieved through water and oil repellent finishing [5]. Generally, the finishing agent with special functions is applied to the fabric through the finishing method of impregnation and dip rolling. It can usually form physical, chemical or physicochemical interaction with the fiber, so as to change the surface proper

They are mainly polydimethylhydroxysiloxane compounds and polymethylhydrosiloxane compounds. Polydimethylhydroxysiloxane has a unique chemical structure and can form a hydrogen bond with the fiber. Due to the role of hydrogen bond, it can form a hydrophobic layer on the fiber and play the role of water repellent. The treated fabric has good water r

Paraffin is not only the earliest water repellent finishing agent used by human beings, but also the most economical water repellent finishing agent. It can form a hydrophobic film on the fiber surface and has good air permeability . When finishing, the fabric can be treated with organic solvent, lotion and molten state of paraffin. Under the actio

Single function infant textiles are far from meeting the needs of modern people. People pay more and more attention to their comfort and functionality. Therefore, new multi-functional infant textiles are becoming more and more popular. Cotton fabric is the textile product that has the most contact with human body. Cotton fabrics are easy to clean a

Infant textiles are no longer limited to practicality. New textiles that combine comfort, beauty and functionality are gaining more and more attention. For babies, due to their poor resistance, the health of the body is more susceptible to the bacteria in the surrounding environment, and the residual stains on the baby’s clothing and the oil

The fixation mechanism of acid dye fixing agent is as follows: (1) The quaternary ammonium group, tertiary amine group and secondary gum group in the color fixing agent molecule can be bonded with the sulfonic acid group that is not completely bound to the fiber in the acid dye molecule to close the water-soluble group, so as to increase the molecu

Nylon, silk, wool and their blends are often dyed with acid dyes. The traditional acid dyes refer to the dyes with acid groups in the molecular structure. Most of the acid groups exist in the form of sulfonate, and only some varieties exist in the form of carboxylate. In the early stage of development, such dyes often need to be dyed under acidic c

Since the 1930s, many foreign chemical companies have begun to develop various color fixing agents. Before World War II, copper salt or cationic surfactant was often used to fix direct dyes. This direct dye is copper salt direct dye. Copper salt has a complexation effect on direct dye molecules, and a complex is formed in the process of fixing, whi

Thickener is a kind of relatively complex polymer, and various factors in the preparation process may have a significant impact on the properties of polymerization products. For example, the type of monomer and the pH value of the mixture. The main monomer of synthetic thickener usually contains water-soluble groups such as carboxylate and sulfonat

Inverse emulsion polymerization means that the water-soluble monomers (such as acrylic acid, acrylamide) are dissolved in water phase first, then the water soluble monomer I is dispersed in the oil phase and formed oil lotion lotion under the presence of oil in water emulsifier by means of the strong shearing effect of mechanical agitation. Finally

In the early 20th century, the study of emulsion polymerization technology was initiated. It means that the polymerization of non water soluble monomers in lotion form emulsion under the action of emulsifier and mechanical agitation. Before the carboxyl group is neutralized, the polymer is insoluble in water and has no thickening effect. After neut

At present, most of the thickeners used in printing and dyeing are polymers with only a slight degree of cross-linking, and are often water-insoluble. Therefore, they can only expand through water absorption or moisture absorption, resulting in thickening effect. In addition, in addition to having good thickening performance, the thickener for prin

Synthetic thickeners occupy most of the current market and are widely used in many fields. Compared with natural thickeners, synthetic thickeners have incomparable advantages over natural thickeners. For example, synthetic thickeners are not seasonal and are not affected by climate, region and other factors; Synthetic thickener has strong water hol

There are also many kinds of natural polymer thickeners, mainly cellulose, natural rubber, sodium alginate and starchAnd its denatured products. Among them, there are many kinds of cellulose products, among which sodium carboxymethyl cellulose and hydroxyethyl cellulose are the most widely used products. This kind of thickener is mainly obtained by