How to dye needle punched non-woven fabrics?

Needle-punched fabrics non-woven fabrics are generally white when they are just produced. People's requirements for appearance have increased, and there have been many colorful fabrics. Fabrics with added colors can attract customers to buy more. Dyeing is a way to make fabrics colorful. , How to dye it?





1. In fact, the color quality of needle-punched non-woven fabrics is the main quality criterion of color products. The successful application of the computer color matching system has realized the real quantification of color evaluation. Quantitative methods can be used to quantitatively evaluate the stability of raw and auxiliary materials, provide guarantee for the quality of filter needle-punched non-woven fabrics, optimize suppliers, and control purchase channels.

2. Needle-punched non-woven fabric is based on the original formula, adding some colorants to increase or decrease the type and amount of colorants by modifying the overlap of the color reflection curve and the standard color reflection curve on the display screen. It is two reflections. The curves are as close as possible to overlap, and a reference formula for adjusting the color difference is obtained.

3. When it is necessary to measure a certain sample, after the filter needle-punched non-woven cotton cloth is scanned by the computer, the computer can automatically combine all the colorants in the database and then calculate the color tristimulus value of each group of formulas, and Combining the three stimulus values ​​one by one with the sample will inevitably increase the calculation time. Therefore, the general color matching is designed with colorants to form a formula combination, and the operator who is familiar with the color matching principle inputs through the hard disk, and there is a computer to choose from, which shortens the computer. Application time.

Colored needle-punched non-woven fabrics are more popular, especially in industries that require high appearance. They need to be dyed in different colors. Dyeing pays more attention to the combination of different colors, and the dyed effect is more beautiful.