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  • What are the dyeing laws of E-type, SE-type and S-type disperse dyes?


    In the polyester dyeing process, the heating rate, the holding temperature and the pH value of the dyeing bath have a greater impact on the dyeing quality. Theoretically, under the condition of ensuring that the fabric does not appear colored, the shorter the dyeing process, the lower the dyeing cos Read More

  • Disperse dye inspection


    1 Appearance inspection The method is the same as the vat dye. 2 Inspection of dye components The method is the same as that of vat dyes. Note: The synthesis of the same disperse dye such as HGL blue is more expensive than the blending. 3 Diffusion test The method is the same as the vat dye. 4 Read More

  • Large-scale limited production of polyester chemical fiber


    2021 is a year of macro inflation and policy guidance. In the first half of the year, macro inflation will dominate, and the policy impact will be more prominent in the second half of the year. Under the background of the country’s 14th Five-Year "Carbon Peak-Carbon Neutrality", the energy consumpti Read More

  • What is the one-bath dyeing technique of nylon/cotton fabric


    Nylon/cotton fabrics are usually dyed by two-bath over-dyeing, that is, dyeing nylon with neutral, acid or disperse dyes, and then dyeing cotton with medium-temperature reactive dyes. The two-bath over-dyeing method is used for dyeing. The advantage is that the color (shade, shade) of nylon and cott Read More

  • Dyestuff companies actively respond to cost pressures


    Industry experts believe that in the second half of this year, the cost of dyes will continue to show an upward trend driven by the price increase of bulk raw materials, which is undoubtedly worse for the dye industry, which is currently under greater operating pressure. In the face of increasing co Read More

  • What is polyester fiber


    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

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