What are the types of printing and dyeing auxiliaries

There are many varieties of textile dyes and different dyeing processes. The corresponding supporting auxiliary agents are required. Therefore, there are many varieties of such additives. There are mainly the following:

Water softener: that is, metal ion chewing agent

Heavy metal ions in the water often affect the color or dissolving performance of the dye. We can use soft water to remedy. The commonly used water varieties include sodium polarized sodium phosphate, sodium ammonycelascerium, and sodium ethylehoethane.

Solvent and aids

When some dyes are used or prepared liquid dyes, they need to fill the mouth solvents to help them dissolve, such as ethylene glycol, one shrimp diol, ethylene glycol ether, methalide, sulfurbolly ethylene, etc. As a dye solvent; when using the blue blue blue, the supporting solvents and copper salt should be used, and the dye is sodium aid the solvent.

Restore and oxidant

When used, the reduction dye must be dissolved with a reduction agent first. The commonly used insurance powder (sodium diete sulfate>, white block (sodium sodium sulfate), and sulfur dioxide. When reducing dye anti -dyes, sodium nitrogenonate can be used with mild oxidants. This product can also be used for printed slurry to protect the influence of the reduction component that may be brought in in the slurry.

Solid agent and color rendering assistant

When dyeing direct dyes, acidic dyes, and active dyes, the color fixing agent treatment can be used before and after dyeing, which can increase the amount of color and fastness. The fixing agent is mainly used for ammonium salt and polymer monsoon salt. Printing dyes are sometimes used for color rendering, such as pyramine steaming color.

Dispense, also known as diffuser

Differential dyes and reducing dyes should be added with decentrals and protective colloids to ensure uniform dyeing and prevent stains. Common dispersers include sulfide (Taikoo Oil, Turkish Oil), alkyl or long -chain or long -chain -gyamine -based sodium, alkyl polyoxyethylene ether, sodiumin sulfonate, sulfonin formaldehyde compound, oil -based aluminum group Poly amine carboxylic acid salt and so on.

The even dye, the average dye

Polyte oxygenyl ether surfactants are commonly used as a uniform agent. Cattera dyes should be used with cationic surfactants, and acidic dyes should be used.

Anti -lighting agent

Compared with natural fibers, the surface of the synthetic fiber is too smooth and the reflectance is too high, so it must be improved with titanium pink powder and zinc sulfide.

Foam

It is used to remove the bubbles caused by the surfactant during the printing and dyeing process. Originally, trigly phosphate, scholatol, etc. are generally used now, and the re -ensemble of organic stone Gui has now been used.

Printing pulp and thickener

In the past, natural pulp, it has now tended to use semi -synthetic or synthetic slurry, such as starch ether, sodium algina, ether, cubin, polyvinyl, and polyacryl. The synthetic slurry is highly consistent and small, which can make the color obtained deep. The chemical structure of a thickener is polymer polyethylene glycol or dilate, or polyacrylate with polycryilized polycryilized by acrylate.

Printing and dyeing adhesive

Various synthetic gums such as butadiene, styrene, acrylite, ethyl acetate, ethyl chloride, and acrylics can be used. It is required that the adhesive power is strong, the rubbing is good, the feel is soft, and it is not easy to yellow under high temperature and light at high temperature and light. At present, the high -quality universal adhesives are polyacrylate clusters and polyurethanes with self -overlapping chain groups.