Paint formula for water -proof and oil-proof colorful papers

Abstract

The invention relates to a coating formula of colorful paper with water-proof and oil-proof properties. The coating is prepared by the following materials: Lauxite, oxidized starch, organic pigment, firming agent, water and other addition agents. The manufacture method for making each component into the coating of the invention is that; adding the organic pigment and a dispersant into the water according to a certain proportion, selecting proper grinding and dispersing equipment to lead the pigment to be evenly dispersed; then adding the oxidized starch into another part of water to be stirred and heated to more than 80 DEG C to be completely pasted and then cooled to below 60 DEG C, adding the dispersed organic pigment solution, adding the firming agent after complete cooling and mixing the coating into the Lauxite before being used. The invention also provides a method for producing the coating formula. The coating of the invention painted on the page can reach the using requirements of good oil-proof and water-proof properties and no decoloring after cross bonding and solidification under a certain condition. The coating is also a novel environment protective product.

Description

technical field [0001] The invention relates to a paint formulation for colored paper with water and oil repellency, and also relates to a preparation method and application of the paint formulation. Background technique [0002] With the improvement of people's living standard and cultural level, the types of paper consumption are diversifying, and the demand for colored paper is also increasing. There are two main dyeing methods of colored paper: pulp dyeing and paper surface dyeing. In-pulp dyeing is to add dye to pulp to make it colored. The disadvantage of this production method is that the dye retention rate is low, pollutes the environment, and the dyeing effect is affected by many factors, and the produced paper has many paper defects. Paper surface dyeing is to make the paper surface colored by dipping and coating, so that most of the dyes remain on the paper, the retention rate of the dyes on the paper is high, and some of the remaining dyes are reused after reflo...

AI Technical Summary

Problems solved by technology

In-pulp dyeing is to add dyes to the pulp to make it colored. The disadvantage of this production method is that the dye retention rate is low, pollutes the environment, and the dyeing effect is affected by many factors, and the produced paper has many paper defects.