Polyester is generally dyed with disperse dyes. Disperse dyes do not contain strong water-soluble groups and are dyed in a dispersed state during the dyeing process. A class of ionic dyes can be divided into three types according to dyeing temperature or sublimation fastness, S type, SE type , Type
Good and poor color fastness directly affects the quality of textiles, as well as the health and safety of the human body. In the process of wearing products with poor color fastness, rain and sweat will cause the pigments on the fabric to fall off and fade. The dye molecules and heavy metal ions ma
There are many kinds of color fastness, such as washing fastness, rubbing fastness, perspiration fastness, chlorine fastness, light fastness, sublimation fastness, etc. This article mainly discusses sublimation fastness.Sublimation fastness: refers to the migration and vaporization of dye molecules
Sublimation fastness: refers to the migration and vaporization of dye molecules inside the fabric when heated during high-temperature processing or storage of colored fabrics. Dye molecules will migrate from the fabric to the surface of the fabric when heated, which will reduce the color fastness of