Manufacture method of bendable low-emission coated laminated glass with regionally removed coat

A low-emissivity coating and laminated glass technology, which is applied in the manufacturing field of bakeable and bendable low-emissivity coated laminated glass, can solve the problems of no low-emissivity film-laminated glass removal technology, irregular patterns, glass scratches, etc. The effect of film corrosion, short drying time and uniform coating

Inactive Publication Date: 2009-11-25
FUYAO GRP SHANGHAI AUTOMOBILE GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process cannot achieve partial area film removal
[0012] Chinese patent 200820000985.8 discloses a film removal machine around the glass, which uses a grinding head to remove the film. This film removal device is semi-automatically operated and suitable for large-scale production, but this device is only suitable for linear and equidistant film removal, that is, film removal The vertical distance from the edge of the film layer to the periphery of the glass is equal; and the original glass for coating is rectangular, this device is especially suitable for the field of architectural glass coating
But thi

Method used

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  • Manufacture method of bendable low-emission coated laminated glass with regionally removed coat
  • Manufacture method of bendable low-emission coated laminated glass with regionally removed coat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of manufacturing method of the bakeable bendable low-emissivity coated laminated glass of region removing film, such as figure 2 Shown, the technological process of this method comprises the following steps:

[0044] (1) Pre-treatment of original glass: The original green float glass with a thickness of 1.8mm is sliced, loaded, cut, edged, washed and dried to obtain automotive-grade original glass, which is called "large piece" glass ;

[0045] (2) Screen printing: use water-soluble paint as a film-removing medium, and apply it on the area around the surface of the original automotive-grade glass that does not need to be coated by screen printing. The thickness of the film is 40 μm. The water-soluble paint is formed by film Composition of substance, auxiliary agent and organic solvent, wherein the content of acrylic resin is 40% (wt%), the auxiliary agent is photoinitiator, the content is 2% (wt%), and the balance is organic solvent ethanol, film-forming substa...

Embodiment 2

[0051] A method for manufacturing a bakeable and bendable low-emissivity coated laminated glass with regional film removal, finally obtaining products such as figure 1 As shown, the method includes the following steps:

[0052] (1) Pre-treatment of original glass: The original green float glass with a thickness of 1.8mm is sliced, loaded, cut, edged, washed and dried to obtain automotive-grade original glass, which is called "large piece" glass ;

[0053] (2) Screen printing: use water-soluble paint as a film removal medium, and apply the water-soluble paint along the outer edge 1 of the original automotive-grade glass to the area 2 around the glass surface that does not need to be coated and the base area 5 of the glass surface through the screen printing process. The thickness of coating film is 80 μ m, and this water-soluble coating is made up of film-forming substance, auxiliary agent and organic solvent, and wherein polyethylene resin content is 65% (wt%), and auxiliary ...

Embodiment 3

[0059] A method for manufacturing a bakeable and bendable low-emissivity coated laminated glass with regional film removal, the method comprises the following steps:

[0060] (1) Original glass pretreatment: the original transparent float glass sheet with a thickness of 2.1mm is sliced, loaded, cut, edged, washed and dried to obtain automotive-grade original glass, which is "large sheet" glass ;

[0061] (2) Screen printing: use water-soluble paint as a film-removing medium, and apply it on the area around the surface of the original automotive-grade glass that does not need to be coated by screen printing. The thickness of the film is 30 μm. The water-soluble paint is formed by film Composition of substance, auxiliary agent and organic solvent, wherein the content of acrylic resin is 35% (wt%), the auxiliary agent is photoinitiator, the content is 2% (wt%), and the balance is organic solvent acetone, film-forming substance and organic solvent are water soluble;

[0062] (3)...

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Abstract

The invention relates to a manufacture method of a bendable low-emission coated laminated glass with regionally removed coat. The method comprises the following steps: (1), pretreating a raw glass sheet by cutting and laminating to obtain a piece of glass; (2), coating a water soluble coating onto the glass surface do not needing film coating through screen printing process; (3), drying a water soluble coating on the glass with an ultraviolet lamp; (4), coating a low-emission film onto the glass surface by utilizing a piece of magnetron sputtering equipment; (5), washing away the water soluble coating with deionized water; (6), drying, dusting, matching, bending, laminating, pressing and packing the glass to obtain a product. Compared with the prior art, the obtained glass substrate has even film to grantee both the passing of electromagnetic wave signals and low emissivity, suitable for manufacturing windshield glass of an automobile.

Description

technical field [0001] The invention relates to a method for manufacturing a coated laminated glass, in particular to a method for manufacturing a bakeable and bendable low-emissivity coated laminated glass with area-removed film. Background technique [0002] According to the manufacturing process of low-E coated glass, it can be divided into two types: online low-E coated glass and offline low-E coated glass. The invention belongs to the field of offline low-E coated glass. [0003] Off-line low-E coated glass is composed of multi-layer films, which are produced by magnetron sputtering coating technology. The functional layer is mainly silver layer. Since the silver layer is particularly easy to oxidize, ordinary off-line low-E coated glass For heating operation, it can only be used to synthesize insulating glass immediately after coating. [0004] With the continuous advancement of technology, toughened low-E coated glass has appeared in recent years. Several large domes...

Claims

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Application Information

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IPC IPC(8): C03C17/00
Inventor 尚贵才丁杰陈绍木
Owner FUYAO GRP SHANGHAI AUTOMOBILE GLASS CO LTD
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