Tips | What factors affect the color fastness of paint digital printing?

1. Types of textiles


The color fastness of paint ink is different on fabrics of different types and different organizational structures. For example, paint ink generally has better color fastness on cotton and linen fabrics, and slightly worse color fastness on chemical fibers.


2. Softener on the cloth surface


If the paint digital printing manufacturer does not have the ability to process pre-printing and dyeing, the pre-press semi-finished products have to be purchased on the market, and some of these semi-finished products have been softened. If the paint digital printing is performed on such fabrics, the softener will cause color fastness. Significantly reduced.


3. Baking time and temperature


After the paint is digitally printed, it must be baked at a high temperature to ensure the color fastness. Some fabrics are prone to yellowing at high temperatures. For these fabrics that are not resistant to high temperatures, lower the curing temperature and prolong the curing time to ensure good color fastness. The specific process must be determined through a small test. There are many brands and types of baking equipment in digital printing factories. No matter which brand or equipment, you must ensure the baking time and time to ensure the color fastness.


4. Selection of pretreatment process and post-treatment process


Choosing the right process, the right pretreatment liquid and the post-treatment liquid for the paint digital printing process can improve the color yield and color vividness.