The pretreating agent for acid dyes onto silk fiber in ink-jet printing and its treating method

摘要

PURPOSE: Provided is a pre-treatment for an inkjet printing silk fiber which pre-treats a silk fiber to enhance the fastness of the dyeing ink to the silk fiber. The pre-treatment exerts to the silk fiber excellent colorizing and designing effects with high washing resistance. CONSTITUTION: The pre-treatment for an inkjet printing silk fiber comprises 0.5-15.0wt.% of hydroxy ethyl cellulose for preventing the ink bleeding, 0.1-3.0wt.% of acid for cationizing the amine group of the silk fiber, 3.0-20.0wt.% of absorbent, 0.11-4.0wt.% of colorization enhancement agent, and 58.0-96.3wt.% of water. The acid is selected from ammonium sulfate, ammonium tartrate, sodium dihydrogen phosphate, acetic acid, formic acid, tartaric acid, citric acid, or sulfamic acid. The absorbent is selected from urea, tio urea, glycerol or ethylene glycol. The colorization enhancement agent is formed with a mixture of benzyl alcohol and butanol.