2023-06-30

Disclosed testing: Accurately collect 1g of dye, add 100ml of water at 30 ° C, stir with glass rods, drop the suspension of dye with 4-5 drops on the filter paper with a straw to observe its natural seepage ring, good diffuserity, good diffuser, good diffuser, and good diffuser. The larger its area. Read More

2023-04-14

The emergence of disperse dye -alkaline dyeing:When decentralized dye dyeing conventional polyester, the general dyeing bath is generally controlled (pH value is 5-6). Due to dyeing under acidic conditions, most of the scattered dye color light is the purest and high -dye rate. However, polyester si Read More

2023-02-17

External factors such as solvents, temperature, dye concentration, electrolytes, and radiation light added to the dyeing solution will cause dyes in the solution, or the state of the dye fabric changes, resulting in changes in the color of the dye. 1. The effect of solvent and mediumThe absorption w Read More

2022-12-02

The effect of decentralized dye dyeingThe heat migration of decentralized dyes is not under dry heat conditions, and the dye is redistributed in the two phases of fiber and surface solvents. Instead, its inherent physical characteristics are also caused. EssenceBy analyzing the effects of dyeing tem Read More

2022-11-18

Polyester fiber with decentralized dyes dyed, during the dry heat treatment process, the phenomenon of decreased color targeting and color -light mutation. It is caused by the heat migration of decentralized dyes.The so -called heat migration refers to a phenomenon of migrating from the inside of th Read More

2022-11-18

Disperse dye dyeing is mainly because polyester fiber dyeing is high -temperature and high pressure. Although the dye molecules are small, the dye molecules are not guaranteed to enter the fiber during dyeing. The cleaning is to destroy the dye molecules that are not entered into the fiber to improv Read More

2022-11-04

There are many reasons for the color difference between samples, and the main reasons are the following aspects.① Be strict and accurate when playing samples. Sample samples are the key to directly affecting the large -scale production of the workshop. We must fully understand its importance and pay Read More

2022-10-14

The main reason is that polyester fiber dyeing is high temperature and high pressure. Although the decentralized dye molecules are small, they cannot guarantee that the dyes molecules enter the fiber during dyeing. Some decentralized dyes will be attached to the fiber surface. The reducing cleaning Read More

2022-10-11

Diversified dye dye polyester is generally performed under acidic conditions. The screened alkaline conditions dyed dyeing dyes have the following advantages and disadvantages. Read More

2022-09-30

Basic knowledge As a color matching proofing technician, you should have a sufficient understanding of the types and properties of textile fibers and textiles, the selection of corresponding dyes, the basic properties of the selected dyes such as shade, hue, and strength, as well as the dyeing proce Read More

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

2022-09-16

There are many kinds of dyestuffs, but in terms of the physical form of their commodities, they can be divided into solid, liquid and slurry. It can be further divided into:Solid dyes—powder, granular, dust-free powder, block, flake, short column;Liquid dyes—water-soluble liquids and dispersions;Slu Read More