VEHICLE WINDOW GLASS AND METHOD FOR PRODUCING SAME
First Claim
1. A method for producing a vehicle window glass including a glass sheet and a functional thin film formed on a principal surface of the glass sheet,the principal surface including a shield region provided along a periphery of the principal surface and a transparent region surrounded by the shield region, the principal surface having a maximum length of 30 cm or less as measured in a first direction and having a maximum length of more than 50 cm as measured in a second direction orthogonal to the first direction,the shield region of the principal surface having a ceramic shielding layer formed thereon,the functional thin film lying over the transparent region and the shield region,the method comprising:
- an application step of feeding a coating liquid for forming the functional thin film onto the principal surface from a nozzle moving relative to the glass sheet, so as to allow the coating liquid to flow in a predetermined direction on the principal surface and thereby allow the coating liquid to cover a region on which the functional thin film is to be formed; and
a drying step of drying the coating liquid fed onto the principal surface, whereinin the application step,the glass sheet used is a glass sheet having the ceramic shielding layer formed beforehand on the principal surface, andthe glass sheet is set in such a position that the predetermined direction coincides with the first direction and thus that a distance the coating liquid flows on the principal surface is limited to 30 cm or less.
1 Assignment
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Accused Products
Abstract
Provided is a method for producing a vehicle window glass, the method being adapted to prevent peeling-off of a functional thin film from a ceramic shielding layer without masking the ceramic shielding layer with a masking tape. This production method includes: an application step of feeding a coating liquid for forming the functional thin film onto a principal surface of a glass sheet on which the ceramic shielding layer has been formed beforehand, so as to allow the coating liquid to flow in a predetermined direction on the principal surface; and a drying step of drying the fed coating liquid. In the application step, the glass sheet is set in such a position that the predetermined direction coincides with a first direction in which the maximum length of the principal surface is 30 cm or less (rather than with a second direction in which the maximum length is more than 50 cm) and thus that the distance the coating liquid flows on the principal surface is limited to 30 cm or less.
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Citations
12 Claims
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1. A method for producing a vehicle window glass including a glass sheet and a functional thin film formed on a principal surface of the glass sheet,
the principal surface including a shield region provided along a periphery of the principal surface and a transparent region surrounded by the shield region, the principal surface having a maximum length of 30 cm or less as measured in a first direction and having a maximum length of more than 50 cm as measured in a second direction orthogonal to the first direction, the shield region of the principal surface having a ceramic shielding layer formed thereon, the functional thin film lying over the transparent region and the shield region, the method comprising: -
an application step of feeding a coating liquid for forming the functional thin film onto the principal surface from a nozzle moving relative to the glass sheet, so as to allow the coating liquid to flow in a predetermined direction on the principal surface and thereby allow the coating liquid to cover a region on which the functional thin film is to be formed; and a drying step of drying the coating liquid fed onto the principal surface, wherein in the application step, the glass sheet used is a glass sheet having the ceramic shielding layer formed beforehand on the principal surface, and the glass sheet is set in such a position that the predetermined direction coincides with the first direction and thus that a distance the coating liquid flows on the principal surface is limited to 30 cm or less. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle window glass, comprising a glass sheet and a functional thin film formed on a principal surface of the glass sheet, wherein
the principal surface has a shield region provided along a periphery of the principal surface and a transparent region surrounded by the shield region, has a maximum length of 30 cm or less as measured in a first direction, and has a maximum length of more than 50 cm as measured in a second direction orthogonal to the first direction, the shield region of the principal surface has a ceramic shielding layer formed thereon, the functional thin film lies over the transparent region and the shield region, the functional thin film is formed by a liquid phase deposition process on the ceramic shielding layer, and the functional thin film has a thickness increasing from one end to the other in the first direction over each of the transparent region and the shield region of the principal surface.
Specification