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Method for preparing powder paint by using powder tinting

A technology for powder coating and toning powder, which is applied to powder coatings and other directions, can solve the problems that the toner powder and the base powder cannot be completely fused with each other, increase the coating layer, and limit other problems, so as to achieve simple and convenient toning steps and reduce production costs. , the effect of saving raw materials

Inactive Publication Date: 2009-06-10
辉旭微粉技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many people have made many attempts to use powder to color powder coatings, but powders and powders cannot be completely compatible and mixed like liquid coatings. After simple addition and mixing, they can achieve uniformity, and the toning powder and When the base powder is added to melt and solidify, it cannot completely melt together, and the resulting enlarged coating cannot show a uniform color
Attempts by people to mix powder with powder have been limited and have had little practical application

Method used

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  • Method for preparing powder paint by using powder tinting
  • Method for preparing powder paint by using powder tinting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1. Preparation of base powder and toning powder

[0037] Use conventional preparation methods and equipment to make the powder coating base powder of the following formula, first mix the raw materials, extrude through an extruder, cool and pulverize through a 200-mesh sieve, and obtain a powder coating base powder with a particle size of 35 microns; The pulverizer pulverizes the conventional paint to obtain a conventional paint toning powder with a particle size of 20 microns.

[0038] 2. Add 50kg of conventional paint toning powder to 100kg of base powder.

[0039] 3. Mix color, bake and solidify.

Embodiment 2

[0041] Except the following content, other parameters are the same as embodiment 1.

[0042] Pulverize with a jet mill to obtain a base powder with a particle size of 5 microns, and pulverize the conventional toning powder to 2-5 microns; add 20 kg of conventional paint toning powder to 100 kg of base powder;

Embodiment 3

[0044] Except the following content, other parameters are the same as embodiment 1.

[0045] Pulverize with a jet mill to obtain a base powder with a particle size of 15 microns, and pulverize the conventional toning powder to 15 microns; 7kg of conventional paint toning powder is added to the base powder of 100kg;

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Abstract

The invention provides a method for preparing a powder coating by color matching of powder. The method comprises: micropowder with particle size of between 0.5 and 20 micrometers is used as color matching powder and directly added into the powder coating(base powder) with particle size of between 10 and 40 micrometers, and by simple mixing, the color match is completed. The method eliminates complex powder making steps of extrusion, crushing, sifting and the like needed in the prior color match of powder, and allows the color matching production of the powder coating to be easily and quickly performed just like the liquid coating. The method can be widely applied to mass production of sample powder in a laboratory and preparation of various powder coatings.

Description

technical field [0001] The invention relates to a method for preparing powder paint, in particular to a method for preparing powder paint by a powder toning method. Background technique [0002] Powder coating is a powdery substance composed of resins, pigments, fillers and additives, among which the resin component as the main film-forming substance can be a resin and its curing system, or a mixture of several resins. [0003] Powder coatings are mainly divided into thermoplastic powder coatings and thermosetting powder coatings according to their film-forming resin properties. The former is a physical melting plasticization film forming process, and the latter is a chemical crosslinking reaction curing process. [0004] Thermoplastic powder coatings are obtained from thermoplastic resins, pigments, fillers, plasticizers and stabilizers through dry mixing or melt mixing, pulverization, and sieving and classification. [0005] Thermosetting powder coatings are composed of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/03
Inventor 郭黎晓秦智猛王旭峰张僚刘兵肖长睿李书刚朱信访
Owner 辉旭微粉技术(上海)有限公司