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Mirror back protective coating for colored coated mirror

A technology for protecting coatings and coated mirrors, applied in the direction of polyester coatings, epoxy resin coatings, coatings, etc., can solve the problems of not being able to meet the production requirements of color coated mirrors and the construction conditions of mirrors, and achieve excellent physical and chemical properties. Conducive to large-scale industrial production, good flexibility

Inactive Publication Date: 2012-06-13
常州市弘可利办公用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these coatings are mainly used for spraying, which cannot be applied to the production requirements of large-scale industrialized streamlined production of color coated mirrors. At the same time, they cannot meet the low-temperature and quick-drying construction conditions required by the mirror industry.

Method used

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  • Mirror back protective coating for colored coated mirror
  • Mirror back protective coating for colored coated mirror
  • Mirror back protective coating for colored coated mirror

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Put the acrylic modified alkyd resin, epoxy resin, amino resin, pigment, filler, and solvent into the stainless steel tank according to the weight ratio listed in Table 1 and stir evenly, then put it into the sand mill and grind it until the fineness is less than 25 μm, then add various film-forming aids according to the weight percentage in the table, such as: anti-skinning agent, silane coupling agent and / or titanate coupling agent, drier, stir evenly and filter.

[0036] Table 1 Primer ingredient list (percentage by weight)

[0037]

Embodiment 2

[0039]Put the modified alkyd resin, acrylate resin, phenolic resin, cross-linking resin, pigment, filler, and solvent into the stainless steel cylinder according to the weight ratio listed in Table 2 and stir evenly, then put it into the sand mill and grind it until If the fineness is less than 25μm, add various film-forming aids according to the weight percentage in the table, such as: anti-skinning agent, silane coupling agent and / or titanate coupling agent, drier, stir evenly and filter.

[0040] Table 2

[0041]

Embodiment 3

[0043] The primer and topcoat of the present invention are diluted with xylene to a construction viscosity of 25s-35s (coated with -4 cups, 25°C) during construction, fully stirred evenly, then poured into the paint drenching tank, and adjusting the width of the drenching paint knife Make the dry film meet the specified requirements. The color coating layer is firstly sprayed with a primer and then a top coat. After drying at about 80°C-100°C for 4 minutes to 6 minutes, it is tested that the paint film performance of the mirror back protective coating used for the color coated mirror reaches the table. 3 performance indicators.

[0044] table 3

[0045]

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Abstract

The invention discloses a mirror back protective coating for a colored coated mirror. The mirror back protective coating for the colored coated mirror comprises a primer and a finish, wherein the primer comprises 25 to 32 weight percent of acrylic modified alkyd resin with the solid content of 50 percent, 8 to 15 weight percent of epoxy resin with the solid content of between 48 and 52 percent, and 6 to 10 weight percent of amino resin; and the finish comprises 30 to 40 weight percent of acrylic modified alkyd resin with the solid content of 50 percent, 5 to 10 weight percent of epoxy resin with the solid content of between 48 and 52 percent, and 4 to 8 weight percent of amino resin. Heavy metal compounds with anticorrosion performance are not used in the mirror back protective coating, so the coating is environment-friendly. The coating can be prepared by a large-scale curtain coating molding process, can be quickly oven-dried, can be completely cured after being roasted at the temperature of between 80 and 100 DEG C for 4 to 6 minutes, has excellent physical and chemical properties, and is favorable for large-scale industrialized production.

Description

technical field [0001] The invention relates to a paint composition, in particular to a mirror back protective paint for a color coated mirror. Background technique [0002] With the development of science and technology, the varieties of stained glass are becoming more and more colorful, and people's lives will also become colorful because of its embellishment and decoration. Colored glass is to add 0.4%-0.7% colorant (mostly metal oxides) to the formula of ordinary glass, such as: chromium oxide (green after adding), manganese dioxide (purple after adding) and cobalt oxide ( blue after adding) and so on. The method of directly adding colorants to the glass to produce colored glass is not only small in batches, but also high in cost, and the price is difficult to be accepted by the market. Now a new type of colored glass mirror is emerging from the market. This kind of colored glass only needs to vapor-deposit or magnetron sputter a layer of colored metal on the surface o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D163/00C09D161/24C09D161/28C09D161/22C09D7/12
Inventor 包柏青童朝健匡启荣
Owner 常州市弘可利办公用品有限公司
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