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  • How to identify the quality of disperse dyes

    2022-09-23

    Diffusion test: Accurately weigh 1g of dye, add 100mL of 30°C water, stir evenly with a glass rod, drop 4-5 drops of the dye suspension on the filter paper with a pipette, observe its natural seepage circle, good diffusivity the larger its area.Some dye solutions have 1~2 layers of fuzzy seepage cir Read More

  • What is the problem of heat migration fastness of disperse dyes?

    2022-06-24

    Heat migration fastness of disperse dyes:Migrating after dyeing means that after polyester is dyed with disperse dyes, when treated at high temperature (such as heat setting), disperse dyes can produce a kind of thermal migration due to the influence of additives. Thermal migration is a redistributi Read More

  • What is Disperse Dyes for Printing

    2022-06-10

    Direct printing on polyester fabrics requires high temperature steaming after printing to avoid interpenetration of patterns and colors. Dyes with high sublimation fastness must be selected. In order to prevent patterns from fading under sunlight, light fastness is also very important. In order to r Read More

  • How to choose disperse dyes when dyeing light color for nylon ?

    2022-05-06

    Nylon/cotton fabrics are dyed with light color, and their nylon components are usually dyed with disperse dyes. The reason is: disperse dyes do not contain water-soluble groups, do not ionize in water, and do not carry active groups. Therefore, disperse dyes dye nylon, there is no ionic bond and cov Read More

  • What is the heat migration fastness of disperse dyes

    2022-04-01

    Migrating after dyeing means that after polyester is dyed with disperse dyes, when treated at high temperature (such as heat setting), disperse dyes can produce a kind of thermal migration due to the influence of additives. Thermal migration is a redistribution phenomenon of disperse dyes in two-pha Read More

  • How to choose the dye compatibility reasonably?

    2022-03-08

    When hot melt dyeing polyester-cotton blended fabrics, color-blocking dyes must also have the same properties as monochromatic dyes. The melting temperature and time should be adapted to the fixing properties of the dye to ensure the highest color yield. Each monochromatic dye has a specific hot-mel Read More

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