Water-soluble colorful coating and preparation thereof

Abstract

The invention relates to a waterborne multi-color coating which belongs to the technical field of decoration materials for buildings. The coating comprises colored particle components and protective colloid components; the colored particle components comprise raw materials with the following weight portions: 10 portions to 20 portions of resin, 70 portions to 80 portions of butanol, 5 portions to 10 portions of cellulose and 2 portions to 5 portions of pigment; the protective colloid components comprise raw materials with the following weight portions: 0.5 portion to 1 portion of guar gum, 26.5 portions to 64 portions of water, 30 portions to 70 portions of acrylic acid emulsion, and 3 portions to 5 portions of alkyl dimethyl phenmethyl ammonium chloride, wherein, the weight ratio of the colored particle components to the protective colloid components is 3 to 4: 1 to 2. The coating has the advantages that the use, storage and transportation are quite convenient; the types of raw materials are fewer compared with the prior art, which not only reduces the cost but also is good for manufacturing; the manufacturing is convenient, the process is simple, and no equipment with high requirement is needed; the coating is safe to the users.

Description

technical field [0001] The invention belongs to the technical field of building decoration materials, and in particular relates to a water-based multicolor paint for decorating building walls, and also relates to a preparation method of the water-based multicolor paint. Background technique [0002] The water-based colorful paint mentioned above is a kind of water-in-water colorful paint. This paint can form a soft protective layer on the surface of the dispersed color particles (also known as the surface of the paint particles) by utilizing the gel properties of polymer materials. film, thereby preventing secondary condensation. [0003] Chinese invention patent application publication number CN1114970A introduces a kind of solid strip water-based colorful paint and its production process, and Chinese invention patent application publication number CN101205433A recommends a kind of solid strip water-based colorful paint and its preparation method and coating method. Regard...

AI Technical Summary

Problems solved by technology

In addition, due to the high VOC content and high benzene content of oil-in-water multi-color coatings, it will cause troubles in use, storage and transportation.

The applicant believes that the cause of the above problems is that organic esters, ethers, and benzene solvents that must be used to dissolve nitrocellulose are used in the formula. According to the national environmental protection industry standard HJ / T414, the VOC standard of nitrocellulose paint is ≤ 700g / L, the standard of xylene is ≤25%; in the national standard GB18581, the limit of harmful substances in solvent-based wood coatings stipulates that the VOC standard of nitro paint is ≤750g / L, and the standard of xylene is ≤45%; so on the one hand, the content of VOC It is often difficult to meet the Chinese national standard for the VOC content limit of GB18582, which is a harmful substance in interior wall coatings, to be 200g / L, and the latest certification requirements for water-based interior wall coatings environmental labeling products issued by the State Environmental Protection Administration are ≤100g / L, Beijing The "Rules for Safety and Health Quality Evaluation of Interior Decoration Coatings" stipulates that VOC must be below 125g / L; on the other hand, xylene has an anesthetic effect on the human central system and is a prohibited substance for indoor coatings.

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