In the printing and dyeing process, due to the impact of energy shortage and increased pressure on environmental protection, the pretreatment process is gradually developing towards a short process.

In reactive dye printing, due to the excessive use of urea, the ammonia nitrogen content in sewage often exceeds the standard, but urea is an indispensable auxiliary.

Textile auxiliary refers to various chemicals needed in a series of processes from spinning, weaving to printing and dyeing, and organizing. It is mainly used to improve the quality of textile printing and dyeing, and collaborates to complete the requirements of dyeing or printing. , Flame retardant and other functional requirements, improve the added value and technical content of textiles. Textile aids can be divided into front treatment agents, dyeing and printed additives, post -finishing agents and other additives according to the different stages and functions of the dyeing process.

In the late 1990s, from the perspective of molecular design, a linear co -concentration was proposed from the amino groups on the silicide osteoothing sore to synthesize a new type of linear amino polyether. Make the entire polysilicide combined with the surface of the fabric firmly, maintaining the original softness and smoothness of polysiloxane. The hydrophilic polyether chain section of the fiber surface exists on the fiber surface in a inverted form. The water molecules on the fiber Surface migration is not hindered. The formation of softness and hydrophilicity is a new stage of the development of organic silicon soft agents, and it is also the future development direction.

Ultraviolet rays refer to the general term of the wavelength of the electromagnetic spectrum from 10nm to 400nm, and cannot cause people's vision.

In recent years, due to the large amount of halogen -containing compounds such as Freon, it is stranded over the earth and is decomposed by ultraviolet rays into active halogen.

GuideExcessive ultraviolet rays will cause serious damage to the skin. The shorter the wavelength of ultraviolet rays, the greater the harm to human skin.

Appropriate ultraviolet rays are beneficial to human health, can promote vitamin D synthesis, reduce the occurrence of sterilization, and have a certain disinfection and sterilization effect.

The solidification of a single component silicone seal is related to the environmental temperature and air humidity.

Last week, individual single factories rebounded 100 in a difficult rebound. Unexpectedly, the stability maintained for three days and then turned around. During the weekend, the DMC price of individual single factories in Shandong was 17,100 yuan/ton.

Today's international market has put forward strong requirements for safety and ecologicalness in textiles. No matter how much the various certification systems and various textile companies have the requirements for these requirements, in order to facilitate consumer identification and purchase, th

With the market's increasingly stringent requirements for human safety, health and ecological environmental protection, chemicals that newly disable and restricted chemicals are prohibited and used in textile aids in recent years have been introduced. The chemical restrictions also reflect the trend

According to the different crosslinking system, it can be divided into condensation type and additive forming two kinds.Condensed silicone release agentCondensed silicone release agent was first used industrially in 1954. The real catalyst in condensed organosilicon release agent is dibutyltin. With

Release agent, also known as anti-adhesive, is used between the substrate and the pressure sensitive adhesive layer. Its main function is to protect the pressure sensitive adhesive layer coated on the substrate to prevent the pressure sensitive adhesive layer from being contaminated or sticking to o

Speaking of ultraviolet absorbent, light stabilizer these professional chemical terms may be many people do not know what this is, but if the sunscreen is added with ultraviolet absorbent, it can protect our skin from the hot sun tan, sunburn, may many people will suddenly see light, understand what

Soft finishing is an important finishing process in printing and dyeing. In order to make the fabric with soft, smooth, comfortable hand feel, it needs to be finished, is widely used to finish with softener.

Use high -tech products to supplement and improve traditional textile printing and dyeing agent products; develop environmentally friendly printing and dyeing agents. In order to adapt to the new development trend, the textile and dyeing industry needs to continue to inject fresh blood to maintain the diversified development of production and operation.

At present, more and more researchers will turn their attention to silicon flame retardants, inorganic flame retardants and organic flame retardants. The three elements of the combustion of the flame retardant principle of the combustion of the combustion, the combustion material, the combustible gas content produced by the non -combustible gas diluted burning area generated by the thermal source gas camera, the chain reaction of the small molecule inhibiting the combustion of the polymer.

At present, environmentally friendly textile auxiliary agents account for about 1/2 of the textile auxiliary agent, and follow the three principles of E -efficiency, economy, and ecology. According to rough statistics, in the past three years, no less than 3,000 new environmental textiles have been developed in the world market. They have excellent biodegradation or processability, low toxic, low formaldehyde or non -formaldehyde, no environmental hormone, no 24 kind of carcinogenic amine, no biological activity composite, can extract heavy metals without exceeding the allowable limit. The mass score of adsorbing organic halide does not exceed the allowable limit. In order to meet the needs of the international textile market, the development of new textile aids is placed in a prominent position.