2022-10-28

Vat dye is a major dye dyeing for dyeing of current color fabric cotton yarn. After dyeing, the yarn is not only bright in color, but also very good. Most of the daily exposure is above 6 or more, and some varieties are as high as 8. Therefore, all color woven fabrics such as cooking, bleaching, sil Read More

2022-05-27

①The color of vat dyes is dominated by intermediate colorsThe color of vat dyes has the characteristics of a complete series from yellow to black and from bright colors to general colors. , Olive Green, Flesh, Brown and Grey series.For example, green reactive dyes are generally made of yellow and tu Read More

2022-05-20

①The color of vat dyes is dominated by intermediate colorsThe color of vat dyes has the characteristics of a complete series from yellow to black and from bright colors to general colors. , Olive Green, Flesh, Brown and Grey series.For example, green reactive dyes are generally made of yellow and tu Read More

2021-12-24

1. The choice of dye or paintThe light-fading mechanism of dyes is very complicated, but the main reason is that the dyes are excited after absorbing photons, and a series of photochemical reactions occur to destroy the structure, leading to discoloration and fading. The light fastness of textiles m Read More

2021-10-08

1 Visual inspection Visually check whether the dye is dustproof. The outer packaging of vat dyes is generally an iron drum, and there is a tie-in plastic bag inside the drum. If the dye is treated with anti-dust, then the plastic paper outside the tie of the inner bag is relatively clean. If the pla Read More

2021-07-16

1. Direct dyes Structural properties: Direct dyes are a kind of water-soluble anionic dyes. Most of the dye molecules contain sulfonic acid groups, and some have carboxyl groups. The dye molecules and cellulose molecules are combined by van der Waals forces and hydrogen bonds. Dyeing objects and met Read More