Black water-based ink for silk-screen printing

Abstract

The invention relates to black water-based ink for silk-screen printing, belonging to the technical field of silk-screen printing. The water-based ink is prepared from the following raw materials in parts by weight: 22-40 parts of carbon black, 2-10 parts of anionic surfactant, 4-10 parts of latex, 3-12 parts of acrylic resin, 1-5 parts of ammonium hydroxide, 10-18 parts of isopropanol, 3-9 parts of cetylpyridinium bromide, 2-9 parts of dispersant, 3-8 parts of defoaming agent and 50-70 parts of deionized water. The black water-based ink disclosed by the invention can solve the problems that a formula in the prior art is not suitable for preparing the black water-based ink, can enable the drying speed of a black pigment to be too fast and be incapable of well fixing the black pigment on a printed matter, is not conductive to printing and can even cause failure of equipment; and by using the combination of an alkali-soluble connecting material and a diffusible connecting material and selecting an appropriate color fixing agent for matching, the drying speed of the pigment is appropriate, the color fastness is improved, and the black water-based ink is further conductive to final printing effects.

Description

technical field [0001] The invention relates to an ink used in printing production, more specifically, the invention relates to a black water-based ink used for screen printing, which belongs to the technical field of screen printing. Background technique [0002] Screen printing belongs to stencil printing, and it is called the four major printing methods together with offset printing, embossing printing, and gravure printing. Stencil printing includes transcription, engraving, inkjet and screen printing. The principle of stencil printing is: when the printing plate (the hole that can pass the ink is made on the base of the paper film or other plate), the ink is transferred to the substrate (paper, ceramics, etc.) through the hole of the stencil through a certain pressure when printing ) to form an image or text. [0003] Screen printing originated in China and has a history of more than two thousand years. As early as the Qin and Han Dynasties in ancient China, the Jiej...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problem that the water-based ink formulation in the prior art is not suitable for the preparation of black water-based ink, which will cause the black colorant to dry too fast and cannot be well fixed on the printed matter, which is not conducive to printing and even causes equipment failure. , to provide a black water-based ink for screen printing, its black is pure, and the drying speed is moderate during printing, and the color fastness is high