Waterborne colorant for reciprocator in automatic spraying and preparation method thereof

Abstract

The invention provides a waterborne colorant for a reciprocator in automatic spraying. The waterborne colorant is made from, by weight, 50-80 parts of acrylic acid emulsion, 3-20 parts of fluorocarbonemulsion, 0-3 parts of a dispersant, 0.01-5 parts of a defoaming agent, 0.01-3 parts of a wetting agent, 0-5 parts of a leveling agent, 0-3 parts of a thickener, 0-3 parts of an ultraviolet absorption stabilizer, 0-2 parts of an anti-mildew antiseptic agent, 0.1-5 parts of a film-forming aid, 0.05-5 parts of silane coupling agent, and 5-40 parts of water. When the waterborne colorant is applied to reciprocator automatic spraying equipment, no foam is produced, wetting performance and leveling performance are good, and coloring is uniform; when the reciprocator automatic spraying equipment rocks back and forth in a single direction, moistness of damp film can be guaranteed, and a pigment can stably form a homogenous phase.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based colorant for automatic spraying by a reciprocating machine and a preparation method thereof. Background technique [0002] Manual paint spraying will cause certain harm to the health of workers, and it is also contrary to the development principle of the company's green and environmental protection. And now the company has started to use high-tech automatic coating production equipment, which liberates the hands of the coating workers. Its environmentally friendly, efficient, fast and safe production methods will bring a qualitative leap to the company's products. Among them, reciprocating machine automatic spraying equipment has been widely used in the furniture industry, but the application of water-based wood coatings in the field of reciprocating machine automatic spraying is still in the development stage, especially the water-based coloring process using re...

AI Technical Summary

Problems solved by technology

Among them, reciprocating machine automatic spraying equipment has been widely used in the furniture industry, but the application of water-based wood coatings in the field of reciprocating machine automatic spraying is still in the development stage, especially the water-based coloring process using reciprocating machines is still blank in the industry, and the technical difficulty lies in water-based coatings Compared with oil-based coatings, the molecular weight is large and the thixotropy is strong. When the reciprocating machine automatic spraying equipment is used, it is easy to generate air bubbles, poor wettability, resulting in uneven coloring effect, and easy to cause the color to scatter and not form a homogeneous phase. Generally speaking, surface color correction process spraying The coating film will not be too thick. Therefore, how to achieve good effects of defoaming and wetting and leveling under the condition of relatively thin spraying is the first technical difficulty; The direction swings back and forth. On the premise of ensuring the wetting of the paint film, how to ensure the stability of the pigment and form a homogeneous phase is the second technical difficulty.

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