CN114523824A

CN114523824A - Automobile glass with beautiful pattern in local area and processing method thereof

Info

Publication number: CN114523824A
Application number: CN202210084934.2A
Authority: CN
Inventors: 尚贵才; 卜令春; 陈兴昊; 郑明生; 柯城
Original assignee: Fuyao Glass Industry Group Co Ltd
Current assignee: Fuyao Glass Industry Group Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-05-24
Anticipated expiration: 2042-01-25
Also published as: CN114523824B

Abstract

The invention provides automobile glass with an attractive pattern in a local area and a processing method thereof, and relates to glass for a vehicle. The automobile glass with the local area provided with the aesthetic pattern comprises a first glass plate, wherein at least one pattern area is arranged on the inner surface and/or the outer surface of the first glass plate, and the pattern area comprises a plurality of mutually independent protruding structures which are integrated with the first glass plate. The automobile glass with the beautiful pattern in the local area and the processing method thereof provided by the embodiment of the invention can form a permanent specific pattern on the automobile glass, and have the functions of beauty and anti-counterfeiting, thereby meeting individual requirements, realizing differential design and improving user experience.

Description

Automobile glass with beautiful pattern in local area and processing method thereof

Technical Field

The invention relates to glass for a vehicle, in particular to automobile glass with an attractive pattern in a local area and a processing method thereof.

Background

At present, a user generally realizes differentiation and individual requirements of automobile glass in a film pasting mode, and the film pasting is provided with patterns such as letters, numbers, characters, figures, marks and the like; however, wrinkles are easy to appear on the edge of the film, the aging performance is not enough, and as time goes up, bubbles or wrinkles are generated on the inner surface of the film sticking area, especially on a front windshield and a rear windshield, so that the problem of poor user experience is caused.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the automobile glass with the beautiful pattern in the local area and the processing method thereof, so that the permanent specific pattern can be formed on the automobile glass, and the automobile glass has the functions of beauty and anti-counterfeiting, thereby meeting the individual requirements and realizing the differentiated design.

In one aspect, the present invention provides an automotive glazing having an aesthetic design in a localized area, comprising a first glass pane having at least one design field disposed on an inner and/or outer surface of the first glass pane, the design field comprising a plurality of raised structures integral with the first glass pane and independent of one another.

Optionally, the plurality of protruding structures of the pattern area, which are independent of each other, are formed after removing a portion of the glass material from the thickness direction of the first glass plate.

Optionally, the area of the top surface of each of the protrusion structures is 300-4000 square micrometers, and the height of each of the protrusion structures is 5-100 micrometers.

Optionally, the visible light transmittance of the pattern region is 70% or less of the visible light transmittance of the other region of the first glass plate.

Optionally, the first glass plate is a bent glass plate which is subjected to high-temperature bending forming at least 560 ℃, and the vertical curvature radius of the bent glass plate is 2000 mm-20000 mm.

Optionally, the horizontal radius of curvature of the first glass plate is 300mm to 4000 mm.

Optionally, the raised structures on the first glass plate are formed by laser engraving, sand blasting, chemical etching, embossing, casting or rolling processes.

Optionally, the automobile glass further comprises a second glass plate and an intermediate bonding layer arranged between the first glass plate and the second glass plate, and the inner surface of the first glass plate is bonded with the second glass plate through the intermediate bonding layer.

Optionally, the color difference value Δ E between the pattern area and the other areas of the first glass plate is less than or equal to 2.5.

Optionally, haze value H of the pattern region₁Not less than 40%, and the haze value H of other areas of the first glass plate₂≤3％。

Optionally, the surface roughness of the pattern region is Ra, wherein Ra is greater than or equal to 0.1 μm and less than or equal to 6 μm.

Optionally, the edge breakage amount D of the pattern region is less than or equal to 100 μm.

Optionally, the automotive glass meets at least one of the following requirements: the requirement of 3.05 meter external surface impact of a ball falling specified in ANSI Z26.1-1996, the requirement of 2.04 meter internal surface impact of a shot-bag specified in ANSI Z26.1-1996, the requirement of fragments specified in ECE R43-2012, and the requirement of surface stress specified in GB 9656-2003.

In another aspect, the present invention provides a method of manufacturing an automotive glazing having an aesthetic pattern in a localized area, the automotive glazing comprising a first glass sheet, the method comprising:

preparing a first glass sheet, the first glass sheet being a bent glass sheet, the first glass sheet having an outer surface and an inner surface;

positioning a region to be processed on the outer surface or the inner surface;

and carrying out processing operation on the area to be processed, wherein the processing operation forms at least one pattern area on the outer surface and/or the inner surface, and each pattern area comprises a plurality of protruding structures which are integrated with the first glass plate and are independent of each other.

Optionally, after the region to be processed on the outer surface or the inner surface is positioned, an included angle between a connecting line between the farthest ends on the boundary line of the region to be processed and the horizontal plane is less than or equal to 5 °.

Optionally, the processing operation is a laser engraving process, and a pulse width of the laser engraving process is less than or equal to 100 × 10^-9And second.

Optionally, the machining operation is a machining principle of symmetric machining, and the machining principle of symmetric machining includes: partitioning the patterns to be processed according to a central symmetry principle, and then sequentially processing the patterns to be processed in each partition according to the central symmetry principle.

Optionally, the method further includes: preparing a second glass plate and an intermediate bonding layer, and arranging the intermediate bonding layer between the first glass plate and the second glass plate to bond the inner surface of the first glass plate and the second glass plate through the intermediate bonding layer.

According to the automobile glass with the beautiful pattern in the local area and the processing method thereof, the plurality of independent protruding structures which are integrated with the first glass plate are formed on the first glass plate, and the protruding structures are made of the glass material of the first glass plate, so that the permanent specific pattern is formed on the automobile glass, and the automobile glass has the functions of beauty and anti-counterfeiting, thereby meeting individual requirements, realizing differential design and improving user experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:

fig. 1 is a schematic top view of an automotive glazing according to an embodiment of the present invention.

Fig. 2 is a schematic top view of an automotive glazing according to another embodiment of the invention.

Fig. 3 is a schematic cross-sectional view of the automotive glazing of fig. 2.

Fig. 4 is a partially enlarged schematic view of the pattern region in fig. 3.

Fig. 5 is a partially enlarged schematic view of the pattern region in fig. 2.

Fig. 6 is a schematic structural view of an automotive glass according to another embodiment of the present invention.

Fig. 7 is a schematic flow chart of a processing method of automobile glass according to an embodiment of the present invention.

Fig. 8 is a schematic view of a positioning manner of the automobile glass according to an embodiment of the present invention.

Fig. 9 is a schematic view of a processing method of the automobile glass according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Fig. 1 is a car glass provided with an aesthetic pattern in a partial area according to an embodiment of the present invention, and as shown in fig. 1, the car glass provided with an aesthetic pattern in a partial area according to an embodiment of the present invention includes: the first glass plate 1, the inner surface and/or the outer surface of the first glass plate 1 is provided with at least one pattern area 11, and the pattern area 11 comprises a plurality of protruding structures which are integrated with the first glass plate 1 and independent of each other.

In this embodiment, the first glass plate 1 may be a curved glass plate, specifically, an arc-shaped glass plate; the first glass pane 1 has an inner surface and an outer surface, the inner surface of the first glass pane 1 facing the interior of the vehicle and the outer surface facing the exterior of the vehicle when the first glass pane 1 is mounted on the vehicle; when the first glass sheet 1 is an arc-shaped glass sheet, the inner surface of the first glass sheet 1 may be a concave surface, and the outer surface may be a convex surface.

The pattern area 11 on the first glass sheet 1 may be located at a corner or edge of the first glass sheet 1; the convex structure and the first glass plate are integrated, namely the convex structure is made of glass materials belonging to the first glass plate 1; the plurality of protruding structures of the pattern area 11 may be formed by laser engraving, sand blasting, chemical etching, stamping, casting or rolling, and as an alternative, the plurality of protruding structures of the pattern area 11, which are independent of each other, may be formed by removing a portion of the glass material from the thickness direction of the first glass plate 1, for example, by laser engraving, sand blasting or chemical etching, and preferably by laser engraving.

The plurality of projection structures contained in the pattern region 11 independently of each other may constitute a specific pattern; the pattern formed by the plurality of raised structures can be numbers, letters, characters, figures, marks or the combination of the above elements. For example, as shown in fig. 1, the automotive glass in fig. 1 includes a first glass plate 1 and an opaque shielding layer 2 disposed around the first glass plate 1, the upper side of the first glass plate 1 has a plurality of pattern areas 11 (black portions), each pattern area 11 can be engraved by laser, the microstructure of the pattern area is as shown in fig. 4 and 5, each pattern area 11 has a plurality of mutually independent convex structures 111 formed after laser engraving; for another example, as shown in fig. 2, the automotive glass in fig. 2 includes a first glass plate 1 and an opaque shielding layer 2 disposed around the first glass plate 1, the upper side of the first glass plate 1 has a plurality of pattern areas 11 (circular tracks and two shaded quarter circles), each pattern area 11 can be processed by laser engraving, the laser engraving area and the glass surface of the non-engraving area form a distinct visual difference, and the appearance is beautiful. The cross-sectional view at a in fig. 2 is shown in fig. 3, and fig. 4 is an enlarged view at B in fig. 3. as shown in fig. 4, the raised structures 111 of the pattern area 11 are independent of each other, the top surfaces 1111 of the raised structures 111 are substantially flush, and the top surfaces 1111 of the raised structures 111 are substantially flush with the surface 12 of the first glass 1. The opaque shielding layer 2 is usually formed by printing a dark ink on the periphery of the first glass plate 1 and curing, and may be, for example, a black ceramic ink, a black ultraviolet ink, etc., and plays a role in shielding other components and improving the appearance.

According to the automobile glass with the beautiful pattern in the local area, the first glass plate is provided with the plurality of mutually independent protruding structures which are integrated with the first glass plate, and the protruding structures are made of the glass material of the first glass plate, so that the permanent specific pattern is formed on the automobile glass, and the automobile glass has the functions of beauty and anti-counterfeiting, so that the personalized requirements are met, the differentiated design is realized, and the user experience is improved.

As shown in fig. 4 and 5, optionally, the bump structures 111 are formed by removing a portion of the glass material in the thickness direction of the first glass plate 1, the glass material around each individual bump structure 111 on the first glass plate 1 is removed by a certain thickness, the bump structures 111 are spaced apart from each other, the area of each bump structure 111 may be 300 to 4000 square micrometers, and the height of each bump structure 111 is 5 to 100 micrometers.

In this embodiment, the shape of the protruding structures 111 may be square, rectangular, diamond, circular, triangular, etc., and when the distance between adjacent protruding structures 111 and the width of the protruding structures 111 are in an order of magnitude, each protruding structure 111 and the portion of the first glass plate 1 from which the glass material is removed may be combined to form a pattern with a frosting effect, in this case, the larger the area of each protruding structure 111 is, the more difficult it is to implement the function of the pattern area, and the smaller the area is, the more difficult it is to process, the higher the processing cost is, so 300 to 4000 square micrometers is preferable. The height of each protruding structure 111 can be 5-100 micrometers, preferably, the height of the protruding structure 111 is 10-70 micrometers, and the safety strength of the first glass plate 1 can be maintained while the pattern definition is improved.

As shown in fig. 1 and 2, optionally, the visible light transmittance of the pattern region 11 is 70% or less of the visible light transmittance of the other regions of the first glass sheet 1.

In this embodiment, the visible light transmittance of the pattern region 11 is less than the visible light transmittance of the other regions of the first glass plate 1, the visible light transmittance of the pattern region 11 is at most 70% of the visible light transmittance of the other regions of the first glass plate 1, and the smaller the ratio between the visible light transmittance of the pattern region 11 and the visible light transmittance of the first glass plate 1 is, the higher the definition of the pattern region 11 is, the more favorable the formation of the beautiful patterns recognizable by human eyes. Specifically, for example, the ratio of the visible light transmittance of the pattern region 11 to the visible light transmittance of the other region of the first glass plate 1 is 70%, 60%, 50%, 40%, 30%, 20%, 10%, etc., for example, the visible light transmittance of the other region (non-pattern region) of the first glass plate 1 is 85%, the visible light transmittance of the pattern region 11 is 50%, and the visible light transmittance of the pattern region 11 is 58.8% of the visible light transmittance of the other region (non-pattern region) of the first glass plate 1.

Optionally, the first glass plate is a bent glass plate which is subjected to high-temperature bending forming at least 560 ℃, and the vertical curvature radius of the bent glass plate may be 2000mm to 20000 mm. The horizontal radius of curvature of the first glass plate may be 300mm to 4000 mm.

This embodiment, crooked first glass board when as the automobile glass, can reduce the reflection of light that the automobile glass produced when the car meets at night and to the influence that driver's normal driving caused, and crooked automobile glass can refract, evacuate the reflection of light, can reduce this risk factor, when crooked first glass is as the front shield glass of car, can also enlarge the field of vision scope, reduce the windage coefficient. And the automobile with the arc glass can expand the space in the automobile as much as possible, and is beautiful and atmosphere and the like.

As shown in fig. 1 and 2, in any of the above embodiments, the first glass plate 1 may be a tempered glass with a thickness of 2mm to 5mm, and may be used as a side window glass of an automobile, a back glass of an automobile, or the like.

As shown in fig. 6, optionally, the automotive glass may further include a second glass plate 3 and an intermediate adhesive layer 2 disposed between the first glass plate 1 and the second glass plate 3, wherein the inner surface of the first glass plate 1 is adhered to the second glass plate 3 through the intermediate adhesive layer 2.

In this embodiment, the first glass plate 1, the intermediate adhesive layer 2, and the second glass plate 3 are laminated in this order to form a laminated glass, and the laminated glass can be used as an automobile windshield, an automobile side window, an automobile sunroof, an automobile rear windshield, or the like. The intermediate adhesive layer 2 may be in particular a thermoplastic intermediate layer, for example made of PVB, EVA, SGP or the like.

As shown in FIG. 1 and FIG. 2, optionally, the color difference value Δ E between the pattern area 11 and the other area of the first glass plate 1 is less than or equal to 2.5.

In this embodiment, the color difference Δ E can be calculated according to CIE 1976 Lab color space. The color difference value delta E between the pattern area 11 and other areas of the first glass plate 1 is less than or equal to 2.5, preferably less than or equal to 2.0, so that the color of the pattern area 11 and other areas of the first glass plate 1 can be kept consistent as much as possible, and the pattern area can be in a neutral color.

Alternatively, the first glass plate may be transparent glass (non-tinted glass) or tinted glass, such as green glass, grey glass, etc., preferably green glass or grey glass.

As shown in FIGS. 1 and 2, the haze value H of the pattern region 11 is optionally₁Not less than 40%, preferably the haze value H in the other areas of the first glass plate 1 is as low as possible in order to ensure driving safety₂≤3％。

As shown in FIGS. 4 and 5, optionally, the surface roughness of the pattern region 11 is Ra, where Ra is 0.1 μm or less and Ra is 6 μm or less. In order to use the first glass pane 1 as an automotive glazing, it may be required that the surface roughness of other regions of the first glass pane 1 is < 0.01 μm.

As shown in fig. 5, the pattern region 11 may optionally have edge chipping 112, and the edge chipping amount D of the pattern region 11 may be, for example, 100 μm, 90 μm, 80 μm, 70 μm, 60 μm, 50 μm, 40 μm, 30 μm, or the like, and the smaller the edge chipping amount of the pattern region 11, the better the appearance quality of the pattern region 11.

Optionally, the automotive glass meets at least one of the following requirements: the requirement of 3.05 meter external surface impact of a ball falling specified in ANSI Z26.1-1996, the requirement of 2.04 meter internal surface impact of a shot-bag specified in ANSI Z26.1-1996, the requirement of fragments specified in ECE R43-2012, and the requirement of surface stress specified in GB 9656-2003. Thus, the safety performance of the automobile glass can be ensured.

Optionally, in any of the above embodiments, the color of the pattern may be designed in a targeted and personalized manner, so as to increase the richness of the pattern. For example, the coating can be selectively applied to the pattern area 11 by a sputtering technique in combination with a coating technique, the coating has an absorption or transmission effect on light of different colors, and different color combinations can be realized by designing the coating, so that the color richness of the appearance of the pattern is increased.

Fig. 7 is a schematic flow chart of a method for processing an automobile glass with an aesthetic pattern in a local area according to an embodiment of the present invention, and as shown in fig. 7, the method for processing an automobile glass with an aesthetic pattern in a local area according to an embodiment of the present invention includes a first glass plate, and the method includes:

s101, preparing a first glass plate, wherein the first glass plate is a bent glass plate and is provided with an outer surface and an inner surface;

in this step, the first glass plate may be a curved glass plate, specifically, an arc-shaped glass plate; the first glass sheet has an inner surface and an outer surface, the inner surface of the first glass sheet faces the interior of the vehicle and the outer surface faces the exterior of the vehicle when the first glass sheet is installed in the vehicle; when the first glass sheet is an arc-shaped glass sheet, the inner surface of the first glass sheet may be a concave surface, and the outer surface may be a convex surface.

S102, positioning a region to be processed on the outer surface or the inner surface;

in this step, the region to be processed on the outer surface or the inner surface of the first glass plate may be located at a corner or an edge of the first glass plate; the first glass plate to be processed can be conveyed to a positioning area of the processing equipment manually or by a production line, and the positioning device of the processing equipment is utilized to complete the positioning of the area to be processed on the first glass plate. If the machining device is not completed or fails to be positioned, the machining device can alarm through sound and light and stop running.

S103, processing operation is carried out on the area to be processed, the processing operation enables at least one pattern area to be formed on the outer surface and/or the inner surface, and each pattern area comprises a plurality of mutually independent protruding structures which are integrated with the first glass plate.

In this step, after the to-be-processed region of the first glass plate is positioned, a processing device (e.g., a laser engraving device) performs a processing operation on the to-be-processed region of the outer surface and/or the inner surface of the first glass plate according to a preset program. The convex structure and the first glass plate are integrated, namely, the convex structure is made of glass materials belonging to the first glass plate.

According to the processing method of the automobile glass with the beautiful pattern in the local area, provided by the embodiment of the invention, the plurality of independent protruding structures integrated with the first glass plate are formed by processing the first glass, and the protruding structures are made of the glass material belonging to the first glass plate, so that the permanent specific pattern is formed on the automobile glass, and the processing method has the functions of beauty and anti-counterfeiting, thereby meeting individual requirements, realizing differential design and improving user experience.

In this embodiment, the plurality of protrusion structures of the pattern area, which are independent of each other, may be obtained by processing the area to be processed of the first glass through processes such as laser engraving, sand blasting, or chemical etching.

As shown in fig. 8, optionally, after the region to be processed on the outer surface or the inner surface is located, an included angle between a connecting line between the farthest ends on the boundary line of the region to be processed and the horizontal plane is less than or equal to 5 °.

In this embodiment, in order to ensure the uniformity of the pattern formed on the processed automobile glass (the thickness of the removed glass material is as good as the design requirement), the arc surface region to be processed is required to be horizontally arranged as possible during the processing operation, that is, the boundary line of the arc surface region to be processed is horizontally arranged as possible. Specifically, when an included angle between a connecting line between the farthest ends on the boundary line of the to-be-processed region and the horizontal plane is less than or equal to 5 °, the to-be-processed arc surface region is considered to be horizontally arranged. As shown in fig. 8, the dotted line is a connecting line of the bottom boundary of the cambered surface to be processed of the first glass plate 1, the dotted line is a horizontal plane and a vertical plane marked line, and the included angle θ between the dotted line and the horizontal dotted line is preferably equal to or less than ± 3 °, that is, the included angle between the connecting line between the farthest ends on the boundary line of the area to be processed and the horizontal plane is preferably equal to or less than 3 °, and most preferably 0 °.

Optionally, the processing operation is a laser engraving process, and a pulse width of the laser engraving process is less than or equal to 100 × 10^-9And second. In this embodiment, the pulse width is preferably less than or equal to 700 × 10^-12Second, the pulse width is preferably 1X 10 or more from the viewpoint of processing cost^-15And second.

In this embodiment, before the machining operation, a machining pattern needs to be designed according to the requirements of a user, a machining program is programmed and set according to the machining pattern, and the machining device automatically stores the programmed machining program; the preset processing program is a processing route program set after the processing pattern is determined, and in order to ensure the processing quality, the processing can be carried out by adopting a sequence of regional symmetrical processing, so that the stress on the first glass plate is symmetrical, and the influence of the processing operation on the performance of the first glass plate is reduced.

For example, as shown in fig. 9, the area to be processed is divided into 1, 3, 5, and 7 regions, and the processing sequence is 1 → 5 → 3 → 7, that is, the principle of central symmetry processing is satisfied.

In this embodiment, the intermediate bonding layer may be a thermoplastic intermediate layer, and after the intermediate bonding layer bonds the first glass plate and the second glass plate into a whole, the pattern on the first glass plate may be located between the first glass plate and the second glass plate, or may be located on a side of the first glass plate away from the second glass plate. After the laminated glass is installed on an automobile, the pattern formed by carving is viewed from the outside to the inside of the automobile, and the pattern accords with a normal visual observation angle.

Optionally, after step S103, a sheet unloading operation may be performed on the first glass plate, specifically, the positioning device of the processing apparatus automatically releases the first glass plate, and the first glass plate is transported out of the main body of the processing apparatus through the assembly line, and the sheet unloading operation is manually completed.

Optionally, the performing a machining operation on the first glass sheet to form the first glass sheet having at least one pattern area includes: and carrying out laser engraving operation/sand blasting operation/chemical etching operation/stamping operation/rolling operation on the first glass plate to form the first glass plate with at least one pattern area. Namely, the processing mode of the first glass plate can be laser engraving, sand blasting, chemical etching, stamping or rolling and the like; as an alternative embodiment, the plurality of protrusion structures independent of each other in the pattern area are formed by removing a portion of the glass material from the thickness direction of the first glass plate, for example, by laser engraving, sand blasting, or chemical etching, preferably by laser engraving, which is based on a numerical control technique and uses laser as a processing medium, and achieves the purpose of processing by utilizing physical denaturation of the processing material due to instantaneous melting and vaporization under laser irradiation. Laser machining has the following advantages: the surface of the glass plate is not contacted with the surface of the material, is not influenced by mechanical motion, does not deform, generally does not need to be fixed, is not influenced by elasticity and flexibility of the material, can be used for processing soft materials, has high processing precision, high speed and wide application field, can be used for processing the materials in severe environments such as high temperature, high pressure and the like, can be carved on the surface of the glass plate at normal temperature by laser, and has shallow carving depth and obvious frosting effect.

Optionally, in any of the above embodiments, the color of the pattern may be designed in a targeted and personalized manner, so as to increase the richness of the pattern. For example, the coating can be selectively applied to the pattern area 11 by sputtering in combination with a coating technique, the coating has an absorption or transmission effect on light of different colors, and different color combinations can be realized by designing the coating, so that the color richness of the appearance of the pattern is increased.

In order to better understand the present invention, a specific example is given below to illustrate the processing method of the automobile glass and the automobile glass provided by the present invention.

Green glass and gray glass were selected for the experiment, and ultraviolet picosecond laser with a wavelength of 355 nm was selected to engrave the glass, although not limited to the laser source with the above wavelength. The following tables 1 and 2 show the appearance index and performance index of the green glass and the gray glass processed according to the processing method of the automobile glass.

TABLE 1 evaluation of appearance index of laser engraved automobile glass

In Table 1, Ra is the surface roughness of the pattern region 11, H₁In the haze of the pattern region 11, Δ E is a color difference value between the pattern region 11 and other regions of the first glass plate 1, and Δ TL is a ratio of the visible light transmittance of the pattern region 11 to the visible light transmittance of other regions of the first glass plate 1.

TABLE 2 evaluation of laser engraved automotive glass Performance index

In table 2, OK indicates that the performance indexes of the green glass and the gray glass processed according to the processing method of the automobile glass meet the requirements of ANSI Z26.1-1996 ball falling 3.05 meter external surface impact requirement, ANSI Z26.1-1996 canister pocket 2.04 meter internal surface impact requirement, ECE R43-2012 fragment requirement, GB9656-2003 surface stress requirement and the like, and meet the use requirements of the automobile glass.

FIGS. 1 and 2 are two pieces of automotive glass in this example engraved using an ultraviolet picosecond laser having a wavelength of 355 nanometers; the broken line A-A in FIG. 2 is a cross-sectional line, and the cross-sectional view is shown in FIG. 3. The microscopic enlarged view of the area B in the figure 3 is shown in figure 5, the right side in figure 5 is a laser engraving area, the left side is a non-engraving area, the interface of the laser engraving area and the non-engraving area is clear, the laser engraving trace is obvious in the laser engraving area, and the protruding structure (square block) of the engraving area and the part (line-shaped) of the laser engraving removing glass material form a frosty pattern, so that the pattern formed after engraving is clear and visible, the edge-breaking amount of the engraving boundary is invisible, the engraving quality is high, and the pattern is quite attractive.

Therefore, the glass processed by the processing method of the automobile glass provided by the embodiment of the invention meets the appearance index and the performance index, namely simultaneously meets the requirements of the appearance and the safety of the automobile glass. The automobile glass and the processing method of the automobile glass provided by the embodiment of the invention can realize the upgrading of the existing automobile glass product shape, improve the shaping effect of the automobile glass, give enough visual impact to users and realize the requirements of differentiation and individuation of the automobile glass product.

In the description herein, reference to the description of the terms "one embodiment," "a particular embodiment," "some embodiments," "for example," "an example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An automobile glass with an aesthetic pattern in a local area is characterized by comprising a first glass plate, wherein at least one pattern area is arranged on the inner surface and/or the outer surface of the first glass plate, and the pattern area comprises a plurality of mutually independent protruding structures which are integrated with the first glass plate.

2. The automotive glass of claim 1, wherein the plurality of bump structures of the pattern area, which are independent of each other, are formed after removing a portion of the glass material in the thickness direction of the first glass plate.

3. The automotive glass of claim 1 or 2, wherein the area of the top surface of each of the raised structures is 300 to 4000 square microns and the height of each of the raised structures is 5 to 100 microns.

4. The automotive glass of claim 1 or 2, characterized in that the visible light transmittance of the pattern area is 70% or less of the visible light transmittance of the other area of the first glass sheet.

5. The automotive glass of claim 1 or 2, wherein the first glass sheet is a bent glass sheet formed by high-temperature bending at least 560 ℃, and the bent glass sheet has a vertical radius of curvature of 2000mm to 20000 mm.

6. The automotive glass of claim 5, wherein the first glass sheet has a horizontal radius of curvature of from 300mm to 4000 mm.

7. The automotive glass of claim 1, wherein the raised structures on the first glass sheet are formed by a laser engraving, sandblasting, chemical etching, embossing, casting, or rolling process.

8. The automotive glazing of claim 1 or claim 2, further comprising a second glass pane and an intermediate adhesive layer disposed between the first and second glass panes, the inner surface of the first glass pane being bonded to the second glass pane by the intermediate adhesive layer.

9. The automotive glazing as claimed in claim 1 or 2, characterized in that the difference in colour between the pattern area and the other areas of the first glazing panel, Δ E, is less than or equal to 2.5.

10. The automotive glazing as claimed in claim 1 or 2, characterized in that the haze value H of the pattern area₁Not less than 40%, haze value H in other areas of said first glass sheet₂≤3％。

11. The automotive glass of claim 1 or 2, wherein the surface roughness of the pattern area is Ra, wherein Ra is 0.1 μm or less and 6 μm or less.

12. The automotive glass according to claim 1 or 2, characterized in that the pattern area has an edge breakage amount D of 100 μm or less.

13. The automotive glass of claim 1 or 2, wherein the automotive glass meets at least one of the following requirements: the requirement of 3.05 meter external surface impact of a ball falling specified in ANSI Z26.1-1996, the requirement of 2.04 meter internal surface impact of a shot-bag specified in ANSI Z26.1-1996, the requirement of fragments specified in ECE R43-2012, and the requirement of surface stress specified in GB 9656-2003.

14. A method of manufacturing an automotive glazing having an aesthetic pattern in a localized area, the automotive glazing comprising a first glass sheet, the method comprising:

positioning a region to be processed on the outer surface or the inner surface;

15. The method according to claim 14, wherein the plurality of bump structures of the pattern area independent of each other are formed after removing a portion of the glass material in the thickness direction of the first glass plate.

16. The method according to claim 14, wherein after positioning the region to be processed on the outer surface or the inner surface, an angle between a line connecting the farthest ends of a boundary line of the region to be processed and a horizontal plane is less than or equal to 5 °.

17. The method of any one of claims 14 to 16, wherein the machining operation is a laser engraving process having a pulse width of less than or equal to 100 x 10^-9And second.

18. The method according to any one of claims 14 to 16, wherein the machining operation is a machining principle using symmetric machining, the machining principle of symmetric machining including:

partitioning the patterns to be processed according to a central symmetry principle, and then sequentially processing the patterns to be processed in each partition according to the central symmetry principle.

19. The method according to any one of claims 14 to 16, further comprising:

preparing a second glass plate and an intermediate bonding layer, and arranging the intermediate bonding layer between the first glass plate and the second glass plate to bond the inner surface of the first glass plate and the second glass plate through the intermediate bonding layer.