Anti-flooding intermediate coating and method for preparing same

A floating color and main color technology, used in coatings, polyester coatings, etc., can solve the problems of blooming, large color differences, unstable production, etc., and achieve the effects of improved precipitation, improved floating color, and stable product quality.

CN106893460AInactive Publication Date: 2017-06-27LANGFANG NIPPON PAINT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-06-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses anti-flooding intermediate coating. The anti-flooding intermediate coating comprises, by weight, 4-20 parts of first acrylic resin, 4-20 parts of first polyester resin, 5-20 parts of first amino resin, 0.1-2 parts of first auxiliaries, 5-20 parts of first solvents and 72.1-182 parts of main color paste. The anti-flooding intermediate coating has the advantages that the performance problems such as flooding in storage procedures, floating during spraying, great color difference, instable production, precipitation and the like can be sufficiently solved by the aid of the anti-flooding intermediate coating, and products are stable in quality; wrapping and dispersing are carried out by the aid of wetting and dispersing agents when pigment is ground, accordingly, the problem of incapability of blending powder due to particle sizes can be solved, and the problems of production difficulty and instable batches due to spraying floating in fields, color difference and inaccurate reserved samples in companies can be indirectly solved.
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Description

technical field

[0001] The invention belongs to the technical field of paint preparation, in particular to an anti-floating intermediate paint and a preparation method thereof. Background technique

[0002] Automobile manufacturers will find colored liquid or color paste floating on the surface when they open the barrel before painting the oil-based intermediate coating. If they are not stirred evenly, it will easily cause poor appearance, decreased gloss, sagging, and pinholes. Wait for paint disease, can't carry out the spraying of color paint and varnish. Most of the reasons for such occurrences are that the storage stability of the paint is poor, the sedimentation is poor, and the site cannot be fully stirred. The floating color of the existing oil-based medium paint is relatively serious, and the monochrome paint will appear to be bloomed. Not only the medium paint, but sometimes the monochrome topcoat will also have color floating. As long as the paint is not fully st...

Examples

Embodiment 1

[0045] A preparation method for anti-floating paint, comprising the following steps:

[0046] Prepare the main color paste:

[0047] Add 10 parts of acrylic resin PRS-1015, 5 parts of polyester resin BECKOLITE AF-1378- 65X, 2 parts of BYK-161 and 60 parts of pigment titanium dioxide R-2196, after mixing, use sanding beads for sanding, mixing to control the KU viscosity within 80-100, the temperature of the coating during sanding should not exceed 60 degrees Celsius, and control the final The fineness reaches below 5 μm, and after sanding, filter, and calculate the amount of amino resin BR-20SE to be diluted by the yield. The yield of the middle coating system described in this embodiment is 70%, and the amino resin BR-20SE The addition amount is 5 parts, and then the main color paste is obtained by mixing uniformly; preferably, the main color paste prepared in this implementation is the anti-floating intermediate coating white main color paste (white intermediate coating semi...

Embodiment 2

[0068] A preparation method for anti-floating paint, comprising the following steps:

[0069] Prepare the main color paste:

[0070] Add 20 parts of acrylic resin PRS-1015, 7 parts of polyester resin BECKOLITE AF-1378- 65X, 0.1 part of BYK-161 and 70 parts of pigment titanium dioxide R-2196, after mixing, use sanding beads for sanding, mixing to control the KU viscosity within 80-100, the temperature of the coating during sanding should not exceed 60 degrees Celsius, and control the final The fineness is less than 5 μm, and it is filtered after sanding, and the amount of amino resin BR-20SE to be diluted is calculated by the yield. In this embodiment, the yield of the intermediate coating system is 70%, and 15 parts of amino resin BR-20SE is added 20SE is diluted and mixed uniformly to obtain the main color paste; preferably, the main color paste prepared in this implementation is the anti-floating intermediate coating white main color paste (white intermediate coating semi-f...

Embodiment 3

[0074] A preparation method for anti-floating paint, comprising the following steps:

[0075] Prepare the main color paste:

[0076] Add 15 parts of acrylic resin PRS-1015, 10 parts of polyester resin BECKOLITE AF-1378- 65X, 1 part of BYK-161 and 65 parts of pigment titanium dioxide R-2196, after mixing, use sanding beads for sanding, mixing to control the KU viscosity within 80-100, the temperature of the coating during sanding should not exceed 60 degrees Celsius, and control the final The fineness is less than 5 μm, after sanding, filter, and calculate the amount of amino resin BR-20SE to be diluted according to the yield. In this embodiment, the yield of the intermediate coating system is 70%, adding 10 parts of amino resin BR-20SE 20SE is diluted and mixed uniformly to obtain the main color paste; preferably, the main color paste prepared in this implementation is the anti-floating intermediate coating white main color paste (white intermediate coating semi-finished prod...