A kind of manufacturing method of zone-removing film can be baked and bendable low-emissivity coated laminated glass

Abstract

The invention relates to a method for manufacturing a bakeable low-emissivity coated laminated glass with area-removed film. The method comprises the following steps: (1) pre-processing the original glass sheet by slicing and loading to obtain the original glass; (2) Apply the water-soluble paint on the surface of the original glass without coating by screen printing process; (3) Use ultraviolet light to dry the water-soluble paint on the original glass; (4) Coat the surface of the original glass with magnetron sputtering coating equipment (5) Use deionized water to wash away the water-soluble paint; (6) Dry, powder spray, match, bake, bend, combine, high-pressure and package the original glass to obtain the product. Compared with the prior art, the coated film on the glass substrate obtained by the invention is even, which can not only ensure the passage of electromagnetic wave signals, but also ensure the function of low radiation, and is suitable for preparing the front windshield glass of automobiles.

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...

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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 this device is not suitable for irregular film removal or special-shaped film removal, and the grinding head is easy to cause scratches to the glass, and slight scratches are not allowed on automotive glass; and automotive coated glass, such as described in Chinese patent 200810071891.4 Bakeable bendable low-e coated glass, the pattern that needs to be removed is also irregular, that is, the distance between the edge of the film and the edge of the glass is different

[0013] However, after searching, no film removal technology and related literature related to laminated glass coated with low-emissivity film were found.

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