Dope Dyed first appeared, can be traced back to the last century 6O, but far from paint printing technology widely used. More than a decade with the adhesive and other additives to improve the performance and improve its more and more widely used.
Dope dyed is a special dyeing process in which a water-insoluble pigment is fixed to the fabric by means of an adhesive. Paint dyeing is very suitable for non-water-soluble dyes, this dyeing effect is very good, can be used for the production of color and decorative animation colors and patterns, and easy to clean water-soluble stains. However, the oil is not easy to dissolve more difficult to remove.
Dyeing dyes are generally water-soluble, the dye dissolved in water, the fabric immersed in dye dye adsorption and the occurrence of fixation reaction to achieve the purpose of dyeing. Dope dyed uses the same pigment particles as the wall paint, which can not dissolve in water and have no functional groups that react with the fiber macromolecules. When the coating is dyed, the fabric is impregnated with the coating liquid containing the components of the pigment, the binder, the crosslinking agent, the anti-swallowing agent and the softening agent, and then the pre-baking and baking can obtain the colored product.
Dope dyed does not limit the fiber type, can shorten, simplify the processing of blended fabric, and even resin finishing and coating can be combined, and the whole process is no longer need to wash, you can achieve energy saving, water saving, environmental protection purposes. But dope dyed is not as good as dye-dyed fabrics, and because the coating particles are bonded to the fabric's surface by means of an adhesive, the rubbing fastness is not good and is currently suitable for processing in less nutritious colors.