Now dyeing acids have a good performance in the field of industrial textiles, and many fields have begun to use dyeing acids instead of acetic acid. However, the dyeing acid also has PH requirements, and the scope of application is not the same!
Dyeing acids are mainly used in textiles such as wool, silk and nylon, and can also play an important role in the production of leather, paper and ink. So how to determine how to match different dyeing acids in different applications?
What are the classifications of dyeing acids in use?
1. Strong acid dyes
This dye is the most basic one, and also the earliest acidic dye, which is more uniform and easy to color when dyeing and weaving wool products, because the molecular structure of this kind of dyeing acid is very simple, and it also makes it feel very poor.
2. Weakly acidic dyes
Compared with strongly acidic dyeing acids, its molecular weight is more and more complex, so that the affinity for wool is relatively large. When using weak acid dyes to dye and weave wool, it can protect wool molecules to a greater extent, improve its firmness, and the color will look better, but the dyeing is relatively not so uniform.
3. Dyeing acid
Find some manufacturers to provide dyeing acid as a mordant for dyeing and weaving, can form a layer of metal complex on the fabric. Although the dyeing process will be more complicated, the use of this dyeing acid can make the fabric more resistant to sunlight, strong washing and external friction
So why do more and more manufacturers begin to choose dyeing acids?
Many people think that since it is an acid, it will certainly cause damage to the fiber element, and at this time, the dyeing acid does not have the presence of inorganic acid, so that the cellulose will not be weakened when it encounters hydrolysis, thus being damaged, of course, it is safer to use!
The dyeing acid also has a good buffer against acid and base when used. After the use of dyeing acid, the buffer PH value can be adjusted in the process to maintain the stability of the dyeing result
After the use of dyeing acid, it can also improve the dyeing result of the fabric to a certain extent, and for substances such as acetic acid, it is more stable for the temperature when construction, and the effect is better when used.
In general, the application of dyeing acids is still very extensive and important! If you want to start, it is recommended that you find a professional and reliable manufacturer directly
Post time: Oct-24-2023