Method and device for removing layers in some areas of glass plates

A technology for coating and supporting plates, applied in the directions of coating, cleaning methods and utensils, chemical instruments and methods, etc.

Inactive Publication Date: 2011-12-14
SAINT-GOBAIN GLASS FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However this document does not address the removal of thin film coatings from substrates

Method used

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  • Method and device for removing layers in some areas of glass plates
  • Method and device for removing layers in some areas of glass plates
  • Method and device for removing layers in some areas of glass plates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0091] figure 1 The shown device consists of a base 1 to which a support wall 2 is fastened. As shown, the support wall 2 can be an air cushion wall, for which purpose there are a plurality of openings 3 filled with pressurized air, so that a gap is formed between the support wall 2, for example covered with felt, and the glass plate 4 resting on it. air cushion.

[0092] The type of construction and the position of the support wall 2 are not critical in themselves. Support walls with rollers or rollers or any other sliding surfaces are also conceivable. Of course, the support wall can be different from that shown in the figure, and the processing plane for the substrate can also be laid flat or slightly inclined relative to the horizontal plane.

[0093] For transporting the glass pane 4 , an optional conveying device 5 , such as a conveyor belt or conveyor rollers, is arranged at the lower edge of the support wall 2 . In addition, it is also possible to set a support for...

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PUM

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Abstract

According to the invention, layers are removed in some areas, particularly the peripheral zone (11), of substrates (4) comprising a coating, especially a metal-containing coating, with the aid of plasma that is directed onto the coated face of the substrate (4). The width of the zone (11) from which layers are removed can be adjusted by directing plasma onto the substrate at the desired layer-removing width from several plasma heads (10) that are disposed next to each other in one row or from one plasma head having a modifiable cross section, the plasma head / s (10) being aligned accordingly relative to the substrate (4) and / or the respectively required number of plasma heads (10) being operated. It is also possible to only partly remove coatings across the thickness of the layer.

Description

【Technical field】 [0001] The present invention relates to a method for removing the coating of a coated substrate, in particular a glass or plastic sheet, in the process of preparing the substrate for subsequent applications in which it is necessary to at least partially remove the coating of the surface of the substrate by means of a plasma, wherein Plasma aligns the area of ​​the substrate to be decoated for local decoating, and relates to a device for carrying out the method according to the foregoing, comprising a support surface 2 for the substrate 4 to be decoated; for at least one plasma source 10 Carrier 8 ; device 5 for moving substrate 4 , and device for moving carrier 8 of plasma source 10 . 【Background technique】 [0002] Transparent substrates, especially glass or plastic panels, but also films, such as PET (Polyethylen-Terephthalat (polyethylene terephthalate)) films, which are coated for different applications before they are processed to the finished state F...

Claims

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Application Information

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IPC IPC(8): H01J37/32C04B41/53C03C15/00C03C23/00C23F4/00B08B7/00C03C17/00
CPCC03C23/006C03C2218/328H01J37/32366C03C23/0075C03C17/002C03C15/00C23F4/00C03C2218/33B08B7/0035H01J37/32C03C23/00
Inventor H·福尔斯特纳A·霍夫里希特
Owner SAINT-GOBAIN GLASS FRANCE
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