Wholesale processing methods and processes of all-cotton dyed fabrics
Dyeing, also known as coloring, refers to the use of chemical or other methods to affect the substance itself for coloring. Natural dyeing sometimes requires a mordant, and synthetic dyeing also requires some auxiliaries. Through dyeing, various colors required by the object can be expressed, and colorful life can be embellished. So, let's learn about the wholesale processing methods and processes of all-cotton dyed fabrics!
Cotton refers to clothes or supplies with 100% cotton content, generally plain cloth, twill cloth, work cloth, etc. Unlike general fabrics, it has the advantages of deodorization, breathability, and comfort, so try not to use detergents. It is recommended to use transparent soap.
Cotton cloth is a cloth woven from cotton yarn. It is a general term for all kinds of cotton fabrics. It has the advantages of simple heat preservation, soft and close-fitting, hygroscopicity, and very good breathability; the disadvantage is that it is easy to shrink, easy to wrinkle, and the appearance is not very good. It often needs to be ironed when worn. It is mostly used to make fashion, leisure, underwear, and shirts. There are mainly cotton cloth, printed and dyed cotton cloth, Songjiang cotton cloth, Gaochang cotton cloth, and Chaobei cotton cloth.
At present, the dyeing rate of pure cotton fabrics directly with dyes is low, and the fabrics after dyeing have low sunlight resistance.
The dyeing treatment method of cotton fabrics includes the following steps.
1) Add a wetting agent and a reducing dye to deionized water, heat it to 40-60 degrees, stir it until it is uniform, and then cool it to 10-20 degrees to obtain a dye solution;
2) Soak the cotton cloth in a container for 10-30 minutes, singe it, desize it, and mercerize it to obtain a silk cotton cloth;
3) Put it into the dye solution configured with silk cloth for cyclic dyeing. The dyeing time is 20-60 minutes. During the dyeing, sodium hydroxide solution is added to the dye solution, and the dyed cotton cloth is obtained after the dyeing is completed;
4) Use steam wet heat setting technology to set the dyed cotton fabric;
5) Wash the cotton cloth after the setting treatment, wash both sides with water, and dry it to obtain the finished cotton cloth.
The above introduces the wholesale processing method and process of all-cotton dyed fabrics. This specification is described according to the implementation methods, but each implementation method does not only include an independent technical means. The description method of this specification is only for clarification. Those skilled in the art should capture the specification as a whole, and may also appropriately combine the technical means in each implementation method.