阅读说明：本技术 一种镀膜夹层玻璃内标识的制备方法 (preparation method of coated laminated glass inner mark ) 是由 黄友奇 吴志远 徐驰 曹文龙 于 2019-09-20 设计创作，主要内容包括：本发明公开了一种镀膜夹层玻璃内标识的制备方法,包括如下步骤：从镀膜夹层玻璃的外表面一侧对镀膜夹层玻璃内的镀膜层进行刻蚀,在指定位置制备出内标识。本发明的方法可实现镀膜夹层玻璃产品生产及检验合格之后产品的唯一性标识制备,所制备的标识呈深色、清晰可辨,其处于玻璃结构内层与外部隔离可避免磨损,同时不会对玻璃本体产生损伤。(The invention discloses a preparation method of an inner mark of coated laminated glass, which comprises the following steps: and etching the coating layer in the coated laminated glass from one side of the outer surface of the coated laminated glass, and preparing the inner mark at the specified position. The method can realize the unique mark preparation of the product after the coated laminated glass product is produced and qualified by inspection, the prepared mark is dark and clearly identifiable, the mark is positioned in the inner layer of the glass structure and isolated from the outside, the abrasion can be avoided, and the glass body cannot be damaged.)

1. The preparation method of the inner mark of the coated laminated glass is characterized by comprising the following steps:

And etching the coating layer in the coated laminated glass from one side of the outer surface of the coated laminated glass, and preparing the inner mark at the specified position.

2. the method of claim 1, wherein the etching is laser physical etching.

3. The method according to claim 2, wherein the parameters of the laser physical etching are set as follows: the wavelength of the laser is 1064nm, 532nm or 0-380nm, the output power range is 0-100W, and the etching line width range is 0-10 mm.

4. The method of claim 1, further comprising the step of preparing the coated laminated glass prior to laser etching.

5. the method of claim 4, wherein the step of preparing the coated laminated glass comprises:

1) Depositing a coating layer on the inner surface of the outer glass structure layer or the outer surface of the inner glass structure layer;

2) And carrying out hot-pressing lamination according to the sequence of the outer glass structure layer, the organic bonding layer and the inner glass structure layer to obtain the coated laminated glass.

6. the method of claim 5, wherein the outer glass structure layer is selected from one of monolithic inorganic glass or laminated glass; the organic bonding layer is selected from at least one of PVB film, PU film, TPU film, PVS film, EVA film or SGP film; the inner glass structure layer is at least one of single inorganic glass, laminated glass, hollow glass or vacuum glass.

7. the method according to claim 5, wherein the coating layer is a continuous single-layer film or composite film with a thickness of 100-600 nm.

8. The production method according to claim 7, wherein the single-layer film is selected from a metal-based film or a transparent conductive oxide-based film; the composite film is a multilayer composite film system comprising a single-layer metal-based film or a transparent conductive oxide-based film.

9. The production method according to claim 8, wherein the metal-based thin film is one selected from an Au film, an Ag film, a Cu film, an Fe film, an Ni film, a Go film, or an alloy film; the transparent conductive oxide film is selected from one of an ITO film, an AZO film or an FTO film; the composite membrane is selected from a Low-E membrane or a antireflection membrane system.

Technical Field

The invention relates to the field of mark manufacturing, in particular to a preparation method of a mark in coated laminated glass.

Background

the methods for making marks on glass are roughly classified into the following types:

1) The silk screen printing ink is the most common method at present, and the printing ink is printed on glass to form a mark pattern through a silk screen printing process, and then the mark is formed by heat curing and sintering at a certain temperature. The method has the advantages that the printing operation is convenient and simple, the batch and high-efficiency manufacture of the same type of mark can be realized, and the bonding force between the mark and the glass is strong; the defects that the cleaning is complex after screen printing, volatile matters in the printing ink pollute the environment, the mark is single and fixed, and the method is not suitable for the unique mark manufacturing requirement of batch glass products with the same specification and structure.

2) The sticking method is a method of sticking the prepared mark on the surface of the glass or laminating the mark in the structure. The method is simple to operate, can meet the unique mark manufacturing requirement of glass products, and the label can be worn, aged and blurred or shed after long-time use.

3) The etching method is a method of forming a mark on glass by using a physicochemical reaction between a material and the glass. If the prior art discloses an etchant for manufacturing an automobile glass anti-theft mark, the etchant is also suitable for etching various mark patterns on other glass, and the patented method has the advantages that the mark is embedded in the glass body and cannot be erased or changed, but has the defect that the glass body is damaged, and the mark patterns have no color and unclear texture; if another prior art discloses a method for making marks on glass, which is to etch low-radiation glass by laser and prepare marks by heat treatment at a temperature of more than 400 ℃, the patent method has the advantages of clear and colored patterns for making marks and has the defects of relatively complex process, long period and high-temperature treatment requirement.

Besides, most of the conventional mark manufacturing methods are applied to the production process of glass products, i.e. the intermediate process, and the mark is discarded if the operation of the subsequent process is improper or the final glass product is defective or even discarded due to errors. If the marking can be carried out after the glass product is produced and qualified by inspection, the process flow is more reasonable, and the investment of marking can be greatly saved compared with the traditional flow.

At present, the functions of glass products are not limited to traditional transparency and space separation, the glass products can be endowed with functions such as heat insulation, electric heating, electromagnetic shielding, radar stealth and the like by preparing a functional film on the surface of glass, and the glass products can be prepared into laminated glass, vacuum glass, hollow glass and the like in the fields of buildings, vehicles, airplanes, ships and warships and the like by matching with structural design. Each glass product is required to have unique identification for high-end and special glass products, so that original production information can be traced according to the identification when problems occur.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide a method for preparing an inner mark of a coated laminated glass.

in order to achieve the above object, the present invention provides a method for preparing an inner mark of a coated laminated glass, comprising the following steps:

And etching the coating layer in the coated laminated glass from one side of the outer surface of the coated laminated glass, and preparing the inner mark at the specified position.

Further wherein the etching is laser physical etching.

Further, the parameters of the laser physical etching are set as follows: the wavelength of the laser is 1064nm (infrared), 532nm (green) or 0-380nm (ultraviolet), the output power range is 0-100W, and the etching line width range is 0-10 mm.

Further, the method also comprises the step of preparing the coated laminated glass before laser etching.

further, the preparation method of the coated laminated glass comprises the following steps:

1) Depositing a coating layer on the inner surface of the outer glass structure layer or the outer surface of the inner glass structure layer;

2) And carrying out hot-pressing lamination according to the sequence of the outer glass structure layer, the organic bonding layer and the inner glass structure layer to obtain the coated laminated glass.

Further, the outer glass structure layer is selected from one of single inorganic glass or laminated glass.

Further wherein the organic bonding layer is selected from at least one of PVB film, PU film, TPU film, PVS film, EVA film or SGP film.

Further wherein the inner glass structure layer is selected from at least one of monolithic inorganic glass, laminated glass, hollow glass or vacuum glass.

Further, the coating layer is a continuous single-layer film or a composite film, and the thickness of the coating layer is 100-600 nm.

Further, wherein the single-layer film is selected from a metal-based film or a transparent conductive oxide-based film (TCO film), etc.; the composite film is a multilayer composite film system including a single-layer metal film or a transparent conductive oxide film (TCO film), and the like.

further, the metal-based thin film is selected from one of an Au film, an Ag film, a Cu film, an Fe film, an Ni film, a Go film, an alloy film, or the like; the transparent conductive oxide film is selected from one of an ITO film, an AZO film or an FTO film; the composite film is selected from a Low-E film or a antireflection film system and the like.

The coated laminated glass comprises an outer glass structure layer, a coated layer, an organic bonding layer and an inner glass structure layer; the coating layer is deposited on the inner surface of the outer glass structure layer or the outer surface of the inner glass structure layer and is firmly attached to the surface of the glass to form a non-exposed surface; the other surface of the film coating layer, namely the exposed surface, is in direct contact with the organic bonding layer to form firm bonding; the outer glass structure layer, the coating layer and the inner glass structure layer are firmly bonded through the organic bonding layer to form the final coated laminated glass.

Compared with the prior art, the invention has the beneficial effects that:

1) The invention can realize the production of the coated laminated glass product and the preparation of the unique identifier of the product after the product is qualified through inspection;

2) The mark prepared by the invention is black or gray, is clear and identifiable, is positioned in the inner layer of the glass structure and is isolated from the outside, so that abrasion can be avoided;

3) The preparation method of the invention does not damage the glass body.

Drawings

FIG. 1 is a schematic view of a coated laminated glass structure according to an embodiment of the present invention.

Detailed Description

For a further understanding of the invention, reference will now be made to the preferred embodiments of the invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the invention, and not to limit the scope of the claims.

Materials, reagents and the like used in the following examples are commercially available.