Colorful coating for paper used for fruit raising pouch and preparation method thereof

Abstract

The invention discloses a colorful coating for paper used for a fruit raising pouch and a preparation method thereof. The colorful coating comprises the following raw materials by weight: 15 to 22 parts of a pigment, 35 to 45 parts of a waterborne film-forming substance, 5 to 10 parts of an antifoaming agent, 4 to 12 parts of a dispersant, 1 to 5 parts of an antiseptic, 2 to 8 parts of a water repellent agent, 5 to 16 parts of an adhesive and 28 to 39 parts of water. The preparation method comprises the following steps: mixing the pigment, the antifoaming agent, the dispersant and water under stirring at 40 to 45 DEG C for 1 to 2 h; then heating the obtained mixture to 55 to 58 DEG C; successively adding the antiseptic, the water repellent agent and the adhesive and continuing stirring for 0.5 to 0.7 h; cooling the obtained mixture to 25 to 30 DEG C; and adding the waterborne film-forming substance and carrying out stirring for 0.3 to 0.6 h so as to obtain the colorful coating. When applied on the fruit raising pouch, the colorful coating has water resistance, wet-rub resistance and good weatherability, can withstand changes of natural environments in summer, e.g., wind, sunshine and rain, has variable and stable colors, good adhesion and no toxicity and harm and benefits growth of fruit; and the preparation method is simple and has low cost.

Description

technical field [0001] The invention relates to a coating, in particular to a colored coating for fruit-raising bagging paper and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people's requirements for fruits turn to high-quality and pollution-free (so-called green fruits). Bagging technique. Under the premise of not affecting or damaging the normal growth and ripening of fruits, fruit bagging not only isolates pesticides and environmental pollution to make fruits pollution-free, but also makes mature fruits smooth and bright in color by isolating diseases, insect pests and dust, improving the quality of fruits. , the benefit is remarkable. In layman's terms, fruit bagging is the coat of the fruit and also the protective film. [0003] The role of fruit bagging is in the later stage of growth. The mechanism is that almost all fruits will be attacked by birds, damage by diseases and insect pests, and damage b...

AI Technical Summary

Problems solved by technology

The color of fruit bagging is single, not easy to distinguish