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The dyeing conditions of disperse dyes are usually to dye polyester under high temperature (130℃±5℃) and acid (pH=4~5). There are two main reasons:Polyester has poor stability under alkaline conditions, and alkaline hydrolysis may occur on the surface of the fiber, resulting in a rough surface of th Read More
From the perspective of the molecular composition of polyester, it is composed of short aliphatic hydrocarbon chains, ester groups, benzene rings, and terminal alcohol hydroxyl groups. In addition to the existence of two terminal alcohol hydroxyl groups, there are no other polar groups in the polyes Read More
Performance characteristics of polyester fiber As a new type of differentiated fiber material, polyester fiber has the characteristics of high strength, large modulus, small elongation, and good dimensional stability. The fiber has a soft texture, good cohesion, soft luster, and has a certain core w Read More
Polyester usually refers to a polymer compound obtained by polycondensation of a dibasic acid and a diol, and its basic chain links are connected by ester bonds. There are many varieties of polyester fibers, such as polyethylene terephthalate (PET) fiber, polybutylene terephthalate (PBT) fiber, and Read More
The chemical name of polyester is polyester fiber, which is widely used in the textile market, and more and more people like polyester fabrics for clothing. But whether polyester fabrics are good or not, what are the advantages and disadvantages? Such a problem can still make many people confused. T Read More
The main body of "super-imitation cotton" is polyester, and the polyester content is greater than 85%. It is a differentiated functional polyester fiber, including filament-like cotton and staple fiber-like cotton. More vividly, super-imitation cotton products look like cotton ( Visual), feels like Read More
When pure polyester fabrics are dyed with disperse dyes, especially filament fabrics, they always look bright and white after dyeing. Increasing the dye concentration will not help, and the color fastness will be greatly reduced.There are two reasons for the low blackness:1. The cross-section of pol Read More
1. Various synthetic fibers have different physical and chemical properties, so the requirements for dyes are also different. Generally speaking, the polarity of the dye, the size and shape of the molecular structure must be compatible with the polarity and physical structure of the fiber. The basic Read More
