Cold transfer printing paste, printing colorant thereof, and preparation method thereof

摘要

The present invention relates to a cold transfer printing paste, a printing colorant and preparation methods thereof. Specifically, the present invention relates to: a cold transfer printing past, which contains polysaccharide, sodium L-pyrrolidonecarboxylate, an etherified starch and water; a printing colorant, which contains the paste of the present invention, an active dye, a defoamer, a flatting agent, a pH stabilizing agent and water; and preparation methods of the paste and the printing colorant. The cold transfer printing paste of the present invention and a printing colorant containing the paste are applicable in a cold transfer printing process, and have stable physical properties, thereby preventing decrease of the viscosity in use.

主权项

1. A paste, comprising polysaccharide, sodium L-pyrrolidonecarboxylate, etherified starch having an efflux time of 30 seconds or less at 25° C. and water, wherein the polysaccharide is xanthan gum, guar gum or a mixture thereof, the polysaccharide is 0.5 wt % to 4 wt % based on the total weight of the paste, the sodium L-pyrrolidonecarboxylate is 0.4 wt % to 3 wt % based on the total weight of the paste, and the etherifield starch is 20 wt % to 45 wt % based on the total weight of the paste.