Water-based ink for flexographic printing of woven bag and preparation method thereof

Abstract

The invention discloses a water-based ink for flexographic printing of a woven bag and a preparation method thereof. The water-based ink comprises the following raw materials in parts by weight: 45-50parts of a water-based color paste, 21-25 parts of water-based acrylic emulsion, 20-23 parts of a water-based binder, 5-8 parts of a water-based wax paste, 3-5 parts of dimethylethanolamine, 0.9-1.5parts of a defoaming agent, 0.5-1 part of a leveling agent and 12-16 parts of deionized water, wherein the water-based color paste comprises the following raw materials in parts by weight: 45-50 partsof water-based acrylic acid, 33-35 parts of organic pigment and 2-4 parts of a wetting dispersant. The product is full-water-based ink without VOC emission, and is safe and environmentally friendly.The product is suitable for various woven bags and solves the problems of printing difficulty and poor adhesion caused by too many auxiliaries in woven cloth. At the same time, the ink has high dryingspeed and bright color after coloring, is directly diluted with water, has good wear resistance, is not easy to fade, and has good acid and alkali resistance and water resistance.

Description

technical field [0001] The invention relates to the field of woven bags, in particular to a water-based ink used for flexographic printing of woven bags. Background technique [0002] Woven bag is a common daily necessities. Woven bag, also known as snakeskin bag, is a kind of plastic bag used for packaging. Its raw materials are generally various chemical plastic materials such as polyethylene and polypropylene. Weaving density refers to the number of warp and weft yarns in a 100mm×100mm braided fabric. The color of the woven bag is generally white or off-white, non-toxic and tasteless, and generally less harmful to the human body. Although it is made of various chemical plastics, it is more environmentally friendly and more recyclable; the woven bag has a wide range of uses , mainly used for packaging and packaging of various items, and is widely used in industry. [0003] With the improvement of people's requirements, the color of woven bags has also begun to increase. ...

AI Technical Summary

Problems solved by technology

[0003] With the improvement of people's requirements, the color of woven bags has also begun to increase. Most of the colors of woven bags are printed with water-based inks. However, the existing water-based inks for woven bags require too many additives, which can easily lead to printing difficulties and poor adhesion. , poor wear resistance and easy to fade, and has VOC emissions in the production process, which brings inconvenience to the production of woven bags