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Technical manufacturing process for low-temperature curing amino baking finish

A technology of amino baking varnish and production method, applied in the direction of coating, etc., can solve the problems of high energy consumption, high drying temperature, insufficient cleaning and environmental protection, etc., and achieve the effect of safe and convenient operation and optimized drying time

Inactive Publication Date: 2011-08-24
HANGZHOU LIWEI CHEM INDAL PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the amino baking varnish made by the technical solution disclosed in the above patent has shortened the drying time compared with the traditional amino baking varnish, the drying temperature is as high as 170°C, and its components include xylene, which is moderately toxic and also carcinogenic. Therefore, the above-mentioned patents are not clean and environmentally friendly, consume a lot of energy, and are not conducive to the personal safety of operators.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Include following raw material in formula and each raw material weight ratio is:

[0029] Acrylic 65%

[0030] Amino resin 22%

[0031] Pigment 0%

[0032] Adhesion Promoter 2%

[0033] Leveling agent 0.3%

[0034] Butyl acetate 7%

[0035] Diacetone Alcohol 3.7%,

[0036] When the amount of pigment is 0, it means that there is no color in the paint, and the resulting paint is a clear varnish. Put the above-mentioned materials into the stirring tank according to the paint making formula, the stirring speed is generally 200-400r / min, and the stirring time is 5 minutes. After the materials are evenly dispersed by the disperser, the performance index is inspected. After passing the inspection, filter and measure ,Package.

Embodiment 2

[0038] Include following raw material in formula and each raw material weight ratio is:

[0039] Acrylic resin 68%

[0040] Amino resin 20%

[0041] Pigment 3%

[0042] Adhesion Promoter 1%

[0043] Leveling agent 0.1%

[0044] Butyl acetate 5.9%

[0045] Diacetone Alcohol 2%,

[0046] The pigment used in this embodiment is aluminum silver paste. First, soak the aluminum powder in butyl acetate for three hours to prepare aluminum silver paste, then put the resin, solvent, and additives into the stirring tank according to the above weight ratio, stir evenly through the disperser, and soak and disperse before adding Aluminum silver paste, and disperse and stir at low speed (200-400r / min), stir for 5 minutes. Finally, color matching, inspection, filtration, measurement and packaging are carried out.

Embodiment 3

[0048] Include following raw material in formula and each raw material weight ratio is:

[0049] Acrylic 62%

[0050] Amino resin 22%

[0051] Pigment 5%

[0052] Adhesion Promoter 2%

[0053] Leveling agent 0.2%

[0054] Butyl acetate 4.8%

[0055] Diacetone Alcohol 4%,

[0056] The pigment used in this example is a mica pigment. First, soak the mica powder in butyl acetate for three hours to prepare the mica pigment, then put the resin, solvent, and additives into the stirring tank according to the above weight ratio, and stir evenly through the disperser, then add the soaked and dispersed ones Mica pigment, and disperse and stir at low speed (200-400r / min), stir for 5 minutes. Finally, color matching, inspection, filtration, measurement and packaging are carried out.

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PUM

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Abstract

The invention discloses a technical manufacturing process for low-temperature curing amino baking finish, which is characterized in that the formula of the low-temperature curing amino baking finish comprises the following raw materials in percentage by weight: 62 to 68 percent of acrylic resin, 20 to 22 percent of amino resin, 0 to 5 percent of dye, 1 to 2 percent of adhesive force promoter, 0.1 to 0.3 percent of leveling agent, 4 to 7 percent of butyl acetate, 2 to 4 percent of diacetone alcohol. The technical manufacturing process comprises the steps of filling the raw materials which are verified to be qualified into a stirring kettle according to a ratio, uniformly dispersing the raw materials by the stirring of a dispersing machine, regulating color, testing performance indexes after color is regulated, filtering if the mixture passes the test, and packaging, wherein when the used amount of the dye is zero, varnish is made, so performance index test can be performed immediately after uniformly stirring and dispersing without regulating color, and the vanish passing the test can be filtered and packaged. When the technical manufacturing process is used, the drying time of the conventional amino baking finish can be reduced greatly, energy cost can be reduced considerably, and the production process is environment-friendly and safe.

Description

technical field [0001] The invention relates to a method for preparing a baking varnish, in particular to a method for manufacturing a low-temperature curing amino baking varnish. Background technique [0002] In the prior art, the drying time of the amino baking varnish used on the surface of metal parts is relatively long, and it generally needs to be dried at 130-150° C. for 30 minutes, and the energy cost is very high. At present, there are also researches on quick-drying amino-based baking varnishes. For example, the patent No. is 200810021672.5, and the Chinese patent titled "Quick-drying amino-based baking varnish and its preparation method" discloses a kind of quick-drying amino-based baking varnish and its preparation method, which includes the following Components: alkyd or acrylic resin, dispersant, pigment, anti-settling agent, polybasic dibasic ester, 582-2 resin, leveling agent, xylene and n-butanol. Although the amino baking varnish made by the technical solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D161/20
Inventor 柳彩虹
Owner HANGZHOU LIWEI CHEM INDAL PAINT
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