Environmental-friendly active dye digital printing pretreatment prime pulp and preparation method thereof

Abstract

The invention discloses an environmental-friendly active dye digital printing pretreatment prime pulp and a preparation method of the environmental-friendly active dye digital printing pretreatment prime pulp. The prime pulp is prepared from, by mass, 0.2-4.5 parts of thickening agent, 3-15 parts of cellulosic fiber swelling agent, 0-5 parts of hygroscopic agent, 0.5-4 parts of alkaline agent, 1-6 parts of accelerating agent, 0-1 part of preservative, 0-2 parts of anti-reducing agent, and 70-90 parts of water. Sodium polyacrylate is good for reaction between the active dye and the cellulosic fiber, thus the prime pulp has high paste rate; the usage and cost of pre-treatment prime pulp are reduced; sodium polyacrylate can be used for reducing the dosage of urea or liquid ammonia, and still can keep high color yield and color brilliance; the environmental-friendly active dye digital printing pretreatment prime pulp has high printing and coloring rate for various cotton fabrics and real silk fabrics; the outline definition of the printing pattern is high, the permeation is moderate, color is fresh; hand feeling and whiteness of the printing cloth are not influenced; besides, the prime pulp has very good universality.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to an environment-friendly reactive dye digital printing pretreatment primer and a preparation method thereof. Background technique [0002] Digital inkjet printing technology is a new textile printing technology. It uses special dye ink or pigment ink to print directly on textiles through inkjet printer. Compared with traditional printing technology, digital inkjet printing technology has the advantages of no need for plate making, saving dye Chemical materials, energy saving and water saving, short cycle, energy saving and emission reduction, rich colors, etc., are ecological and environmentally friendly clean production technologies, meeting the requirements of environmental protection, low carbon and sustainable development of the printing and dyeing industry. Now domestic textile printing enterprises are faced with the pressure of shortening delivery time, improving...

AI Technical Summary

Problems solved by technology

[0003] However, most of the inks used in digital inkjet printing are reactive inks. At present, the reactive dye digital printing pretreatment primer used on cotton fabrics, such as refined sulfur cotton and pure cotton fabrics, is usually sodium alginate paste. As a material, urea is usually used as a cellulose fiber bulking agent. When sodium alginate is used as a thickener, a better coloring rate requires a higher urea content, and the greater the amount of urea used, the higher the nitrogen emission. Large, large environmental pollution, easy to cause water eutrophication after discharge, and sodium alginate itself is also large environmental pollution

Moreover, the traditional bottom slurry using sodium alginate as a thickener has poor versatility, so it is necessary to develop a more environmentally friendly and versatile bottom slurry

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