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  • Qué son los colorantes fluorescentes y su aplicación?

    2022-01-26

    Los colorantes fluorescentes son sustancias que absorben ondas de luz de cierta longitud de onda y emiten ondas de luz de otra longitud de onda mayor que la absorción de luz. La mayoría de ellos son compuestos que contienen un anillo bencénico o un anillo heterocíclico y con doble enlace conjugado. Los colorantes fluorescentes se pueden usar solos o combinados en colorantes fluorescentes compuestos. Read More

  • Why choose reactive dyes?

    2022-01-25

    Reactive dyes have a wide chromatogram, bright color, excellent performance and strong applicability, and their hue and performance are basically in line with the market's requirements for fibers and clothing. Reactive dyes can achieve high levels of fastness properties, especially wet fastness, wit Read More

  • Процесс и практика холодного окрашивания тампоном(2)

    2022-01-24

    03 Важные моменты в процессе окрашивания холодным тампономИсследование технологии и применение холодного тампонного крашения в моей стране началось относительно поздно, и ее продвижение и применение на полиграфических и красильных предприятиях еще не популярно.Опираясь на собственный практический оп Read More

  • There are three major defects in dip dyeing with medium temperature reactive dyes

    2022-01-22

    FirstIn the color-fixing bath where salt and alkali coexist, the dye will be water-soluble due to the high concentration of electrolyte (salt, alkali), the greater salting-out effect, and the occurrence of the "elimination reaction" of the active group of ß-hydroxyethyl sulfone sulfate. The ability Read More

  • What are fluorescent dyes

    2022-01-21

    Fluorescent Dyes: Dyes that strongly absorb and radiate fluorescence in the visible light range.The fluorescent reflectance of fluorescent dyes on fabrics depends on the intensity of the ultraviolet light source, the amount of fluorescent substances dyed on the fabrics and the fluorescent quantum ef Read More

  • How to improve the success rate of dyeing?

    2022-01-18

    Polyester is generally dyed with disperse dyes. Disperse dyes do not contain strong water-soluble groups and are dyed in a dispersed state during the dyeing process. A class of ionic dyes can be divided into three types according to dyeing temperature or sublimation fastness, S type, SE type , Type Read More

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