Printing method of hole printed glass, printed glass, and vehicle

Abstract

This application relates to a printing method for perforated printed glass, printed glass, and a vehicle. The printing method for perforated printed glass includes the following steps: Step S1, providing a glass substrate and printing a first ink layer on a first predetermined area on the surface of the glass substrate; Step S2, removing a local area of ​​the first ink layer to form a perforation outline on the surface of the glass substrate; Step S3, drilling along the perforation outline to obtain printed glass with through holes. The printing method for perforated printed glass of this application can significantly reduce the width of the printed white edge around the through holes of the printed glass and improve the uniformity of the printed white edge around the through holes, thereby improving the printing accuracy and quality of the area surrounding the through holes of the printed glass, and thus improving the aesthetics of the printed glass and the overall appearance harmony of the vehicle.

Description

Technical Field

[0001] This application relates to the field of automotive glass printing technology, and in particular to a printing method for perforated printed glass, the printed glass, and a vehicle. Background Technology

[0002] Currently, automotive glass production typically involves screen printing to create an automotive-grade ink decorative layer. In existing screen printing processes, to prevent ink from overflowing the glass edges, the screen size cannot exceed the glass's outline dimensions. Therefore, screen-printed glass often exhibits a wide unprinted area at its edges, commonly known as a white printing edge.

[0003] When automotive glass has holes and a decorative layer needs to be printed around the holes, conventional screen printing methods are insufficient. Specifically, during the printing process around the glass holes, if the size of the screen blocking area is too large, due to screen positioning deviations and fluctuations in glass dimensions, the area around the glass holes is prone to being printed as eccentric holes, or problems such as excessively large or uneven white edges appearing. If, in order to overcome the problems of screen positioning and glass dimension fluctuations, the size of the screen blocking area is reduced to be equal to or slightly smaller than the glass hole to achieve full printing around the glass hole, the printing ink is very likely to leak into the inner wall of the glass hole, affecting the printing quality.

[0004] Therefore, regardless of how the screen printing plate's hole-blocking area is designed, the area around the glass hole is prone to poor appearance, affecting the printing quality of automotive glass and causing the overall appearance of the vehicle to be uncoordinated. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application provides a printing method for perforated printed glass, printed glass, and a vehicle, which can significantly reduce the width of the printed white edge around the through hole of the printed glass and improve the uniformity of the printed white edge around the through hole of the printed glass, thereby improving the printing accuracy and printing quality of the area around the through hole of the printed glass, and thus improving the aesthetics of the printed glass and the overall appearance harmony of the vehicle.

[0006] To achieve the above objectives, the first aspect of this application provides a printing method for perforated printed glass, comprising the following steps:

[0007] Step S1: Provide a glass substrate and print a first ink layer on a first preset area on the surface of the glass substrate;

[0008] Step S2: Remove a local area of ​​the first ink layer to form a hole outline on the surface of the glass substrate;

[0009] Step S3: Drill holes along the drilling outline to obtain printed glass with through holes.

[0010] The printing method for perforated printed glass according to the first aspect of this application has at least the following beneficial effects:

[0011] The printing method for perforated printed glass of this application involves first printing a first ink layer on a first preset area on the surface of a glass substrate. After the range of the first ink layer is predefined, a local area of ​​the first ink layer is removed. Once the ink layer in the removed local area is eliminated, a perforation outline is defined on the surface of the glass substrate. The local area of ​​the first ink layer can be removed by a corresponding laser film removal device according to a preset running trajectory, so that the width of the removed local area corresponds to the width of the perforation outline.

[0012] Then, holes are drilled along the drilling outline to obtain printed glass with through holes. At this time, the area around the through holes of the printed glass is the drilling outline. The width of this outline can be controlled within a small range. The narrower drilling outline defines the printed white edge around the through holes of the printed glass. In this way, the width of the printed white edge around the through holes of the printed glass can be controlled within a small range, and the geometric center of the printed white edge can be made to coincide with the geometric center of the through holes of the printed glass. This significantly reduces the width of the printed white edge around the through holes of the printed glass and improves the uniformity of the printed white edge around the through holes of the printed glass. This improves the printing accuracy and printing quality of the area around the through holes of the printed glass, thereby improving the aesthetics of the printed glass and the overall appearance coordination of the vehicle.

[0013] In some embodiments, in step S3, holes are drilled along the inner edge of the drilling outline to obtain printed glass with through holes.

[0014] In some embodiments, the step between step S2 and step S3 further includes the following step: Step 23, the area on the surface of the glass substrate without the first ink layer that corresponds to the perforation outline is a second preset area, and the edge outline of the second preset area is chamfered, the width of the chamfer being equal to the width of the perforation outline.

[0015] In some embodiments, the chamfer angle is 30° to 60°.

[0016] In some embodiments, step S1 includes the following steps: S12, drying the first ink layer on the surface of the glass substrate so that the first ink layer adheres to the surface of the glass substrate.

[0017] In some embodiments, the drying conditions include a drying temperature of 120°C to 180°C.

[0018] In some embodiments, the printing method further includes the following step: step S4, hot bending the glass substrate, wherein the first ink layer is sintered during the hot bending process of the glass substrate.

[0019] In some embodiments, step S1 includes the following steps: S13, sintering the first ink layer attached to the surface of the glass substrate.

[0020] In some embodiments, in step S3, holes are drilled along the outer edge of the drilling outline to obtain printed glass with through holes.

[0021] In some embodiments, in step S3, a laser drilling process is used to drill holes along the drilling outline.

[0022] In some embodiments, in step S1, when printing the first ink layer, the edge contour of the first ink layer extends 2mm to 10mm beyond the edge contour of the first preset area, so that after forming the second ink layer outside the first preset area, the second ink layer is removed.

[0023] In some embodiments, step S3 further includes the following steps: S31, after drilling along the drilling outline, using filtered air to blow and suck up the two surfaces of the glass substrate.

[0024] In some embodiments, the through hole is any one of the following shapes: round hole, elliptical hole, polygonal hole, oblong hole, and stepped hole.

[0025] In some embodiments, before printing the first ink layer onto the glass substrate, the visible light transmittance of the glass substrate is controlled to be greater than or equal to 50%.

[0026] In some embodiments, the first ink layer is formed by printing a printing composition onto the surface of the glass substrate and then curing it.

[0027] The printing composition comprises, by weight percentage, 70%–85% structural components and 15%–30% auxiliary components;

[0028] The structural components, by mass percentage, include 15%–30%, 25%–50%, 10%–25%, 5%–10%, 2%–19%, 0.1%–6%, 0.1%–4%, 0.2%–2%, 0%–8%, 0%–5%, 0%–5%, 0%–1%, and 0%–1%.

[0029] The auxiliary components, by mass percentage, comprise 80%–90% organic solvent, 0.5%–1.5% auxiliaries, and 10%–20% binder.

[0030] In some embodiments, the binder comprises a resin and ethyl cellulose, and the mass content of the resin to the mass content of the ethyl cellulose is in the ratio of 4 / 6 to 6 / 4.

[0031] A second aspect of this application provides a printed glass, which is manufactured by the printing method for perforated printed glass described above.

[0032] The printed glass according to the second aspect of this application has at least the following beneficial effects:

[0033] The printed glass of this application is manufactured using the above-mentioned printing method for perforated printed glass, which results in better printing precision and quality in the surrounding area of ​​the through holes, thereby improving the aesthetics of the printed glass and the overall appearance harmony of the vehicle.

[0034] In some embodiments, the printed glass includes a perforated area, a printing area surrounding the perforated area, and a white edge area between the perforated area and the printing area. The width of the white edge area is 0.1 mm to 0.5 mm, and the geometric center of the perforated area coincides with the geometric center of the white edge area.

[0035] A third aspect of this application provides a vehicle comprising the printed glass described above.

[0036] The vehicle according to the third aspect of this application has at least the following beneficial effects:

[0037] The vehicle of this application is equipped with printed glass made using the above-mentioned printing method for perforated printed glass, and therefore has the same technical effect as the printed glass, namely, it can ensure that the surrounding area of ​​the through hole of the printed glass has good printing accuracy and printing quality, thereby improving the aesthetics of the printed glass and the overall appearance coordination of the vehicle.

[0038] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0039] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0040] Figure 1The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 1 .

[0041] Figure 2 The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 2 .

[0042] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0043] Figure 4 for Figure 2 A magnified view of a section at point B.

[0044] Figure 5 The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 3 .

[0045] Figure 6 This is a schematic diagram of the structure of the printed glass in an embodiment of this application. Figure 1 .

[0046] Figure 7 for Figure 6 A magnified view of a section at point C.

[0047] Figure 8 This is a schematic diagram of the structure of the printed glass in an embodiment of this application. Figure 2 .

[0048] Figure 9 for Figure 8 A magnified view of a section at point D.

[0049] Figure 10 The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 4 .

[0050] Figure 11 The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 5 .

[0051] Figure 12 for Figure 11 A magnified view of a section at point E in the middle.

[0052] Figure 13 The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 6 .

[0053] Figure 14 The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 7 .

[0054] Figure 15The flow chart of the printing method for perforated printed glass according to an embodiment of this application Figure 8 .

[0055] Figure 16 This is a schematic diagram of the structure of the printed glass in an embodiment of this application. Figure 3 .

[0056] Figure 17 for Figure 16 A magnified view of a section at point F.

[0057] Explanation of reference numerals in the attached drawings: Glass substrate 100; First surface 101; Second surface 102; First preset area 110; Drilling outline 120; Inner edge 121; Outer edge 122; Through hole 130; Second preset area 140; First ink layer 200; Printed glass 300; Drilling area 310; Printed area 320; White edge area 330; Non-printed area 340. Detailed Implementation

[0058] The following detailed description, with appropriate reference to the accompanying drawings, discloses a method for printing perforated printed glass, the printed glass itself, and embodiments of the vehicle. However, unnecessary details may be omitted. For example, detailed descriptions of well-known facts and repetitive descriptions of identical structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided for the purpose of enabling those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.

[0059] The "range" disclosed in this application is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60-120 and 80-110 are listed for a specific parameter, it is expected that ranges of 60-110 and 80-120 are also included. Furthermore, if minimum range values ​​of 1 and 2 are listed, and if maximum range values ​​of 3, 4, and 5 are listed, then the following ranges are all expected: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, unless otherwise stated, the numerical range "ab" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0-5" indicates that all real numbers between "0-5" have been listed in this article; "0-5" is simply a shortened representation of these numerical combinations. Furthermore, when a parameter is stated as an integer ≥2, it is equivalent to disclosing that the parameter is, for example, an integer such as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0060] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0061] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0062] Unless otherwise specified, all steps in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0063] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0064] Unless otherwise specified, the term "or" is inclusive in this application. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, the condition "A or B" is satisfied by any of the following conditions: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0065] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0066] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0067] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0068] Currently, automotive glass production typically involves screen printing to create an automotive-grade ink decorative layer. In existing screen printing processes, to prevent ink from overflowing the glass edges, the screen size cannot exceed the glass's outline dimensions. Therefore, screen-printed glass often exhibits a wide unprinted area at its edges, commonly known as a white printing edge.

[0069] When automotive glass is perforated and a decorative layer needs to be printed around the holes, the conventional manufacturing method involves drilling, screen printing, and curing the glass sequentially. However, during the printing process around the holes, if the area of ​​the screen blocking the holes (the area on the screen corresponding to the glass holes, where printing ink cannot pass through) is too large, the area around the holes is prone to being printed with eccentric holes due to screen positioning errors and fluctuations in glass dimensions. This can result in excessively large or uneven white edges. If, in order to overcome the problems of screen positioning and glass dimension fluctuations, the size of the screen blocking area is reduced to be equal to or slightly smaller than the glass holes to achieve full printing around them, the printing ink is very likely to leak into the inner wall of the glass holes, affecting printing quality.

[0070] Therefore, regardless of how the screen printing plate's hole-blocking area is designed, the area around the glass hole is prone to appearance defects, affecting the printing quality of automotive glass.

[0071] Based on the above background, see Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides a printing method for perforated printed glass, comprising the following steps:

[0072] Step S1: Provide a glass substrate 100 and print a first ink layer 200 on a first preset area 110 on the surface of the glass substrate 100.

[0073] Step S2: Remove a local area of ​​the first ink layer 200 to form a hole outline 120 on the surface of the glass substrate 100.

[0074] Step S3: Drill holes along the drilling outline 120 to obtain printed glass with through holes 130.

[0075] It should be noted that the thickness of the glass substrate 100 is not limited in step S1, and can be selected according to actual needs. In some embodiments, the thickness of the glass substrate 100 can be from 0.5 mm to 10 mm.

[0076] Furthermore, in step S1, before printing on the glass substrate 100, the glass substrate 100 can be mechanically cut using appropriate mechanical cutting equipment, or the glass substrate 100 after cutting can be edge-ground using an edge-grinding process, thereby pre-producing the glass substrate 100 of the required shape.

[0077] Furthermore, in step S1, the glass substrate 100 includes two opposing surfaces, which are defined as a first surface 101 and a second surface 102. When the glass substrate 100 is assembled into a vehicle, the first surface 101 and the second surface 102 of the glass substrate 100 face the interior and exterior of the vehicle, respectively. In the following description, the printing of a first ink layer 200 on the first surface 101 of the glass substrate 100 (the surface facing the interior of the vehicle) is used as an example, that is, the first preset area 110 on the surface of the glass substrate 100 at this time is the first preset area 110 on the first surface 101 of the glass substrate 100.

[0078] Additionally, it should be noted that in step S1, see... Figure 5 and Figure 6 The first preset area 110 on the surface of the glass substrate 100 can be the entire surface area of ​​the glass substrate 100. See also Figure 7 and Figure 8 The first preset area 110 on the surface of the glass substrate 100 can also be a portion of the surface of the glass substrate 100, and there is no specific limitation. The shape and size of the first preset area 110 can be defined according to actual needs.

[0079] It is easy to understand that in step S1, a screen printing process can be used to print a first ink layer 200 on the first preset area 110 on the surface of the glass substrate 100, that is, the first ink layer 200 completely covers the first preset area 110.

[0080] It should be noted that in step S2, the shape and position of the local area of ​​the first ink layer 200 to be removed correspond to the position and shape of the perforation outline 120. The position and shape of the area enclosed by the perforation outline 120 are the position and shape of the through hole 130 in step S3. The shape of the through hole 130 can be one of the following: a round hole, an elliptical hole, a polygonal hole, an oblong hole, or a stepped hole, etc., specifically defined according to actual needs. In this embodiment, the through hole 130 is described as a round hole.

[0081] In specific implementation step S2, the glass substrate 100 with the first ink layer 200 obtained in step S1 is first fixed and positioned, with the surface of the glass substrate 100 with the first ink layer 200 facing upwards. A laser film removal device is used to remove a local area of ​​the first ink layer 200 according to a preset running trajectory, thereby forming a perforation outline 120 on the surface of the glass substrate 100. The width d1 of the perforation outline 120 can be controlled within a small range according to actual needs, for example, the width d1 of the perforation outline 120 can be controlled to be 0.1mm to 0.5mm. It is easy to understand that after the ink layer in the local area of ​​the removed first ink layer 200 is eliminated from the surface of the glass substrate 100, the perforation outline 120 is defined on the surface of the glass substrate 100. The perforation outline 120 is annular and has no ink printed on it.

[0082] Furthermore, it should be noted that in steps S2 and S3 above, the operation of removing a local area of ​​the first ink layer 200 and drilling along the drilling outline 120 can be performed by the same laser device. The laser device can be configured with a laser optical path with an oscillation system to improve the accuracy of performing step S2 by laser film removal and step S3 by laser drilling.

[0083] From the above description, it can be clearly concluded that the printing method of the perforated printed glass of this application first prints a first ink layer 200 on the first preset area 110 on the surface of the glass substrate 100. After the range of the first ink layer 200 is predefined, a local area of ​​the first ink layer 200 is removed. After the ink layer of the removed local area is eliminated, a perforation outline 120 is defined on the surface of the glass substrate 100. The local area of ​​the first ink layer 200 can be removed by a corresponding laser film removal device according to a preset running trajectory, and the width of the removed local area is controlled within a small range, so that the width d1 of the perforation outline 120 is correspondingly limited within a small range.

[0084] Then, holes are drilled along the drilling outline 120 to obtain printed glass with through holes 130. At this time, the area around the through holes 130 of the printed glass is the drilling outline 120. The drilling outline 120 with a small width d1 defines the printed white edge around the hole of the printed glass. In this way, the width of the printed white edge around the through hole 130 of the printed glass is controlled within a small range, and the geometric center of the printed white edge coincides with the geometric center of the through hole 130 of the printed glass. This greatly reduces the width of the printed white edge around the through hole 130 of the printed glass and improves the uniformity of the printed white edge around the through hole 130 of the printed glass. This improves the printing accuracy and printing quality of the area around the through hole 130 of the printed glass, thereby improving the aesthetics of the printed glass and the overall appearance coordination of the vehicle.

[0085] It is easy to understand that the printed glass with through holes produced by the printing method of this application can control the width of the printed white edge around the through hole 130 within a small range, and can make the geometric center of the printed white edge around the through hole 130 coincide with the geometric center of the through hole 130, ensuring the uniformity of the printed white edge around the through hole 130. This improves the printing precision and quality of the area around the through hole 130, thereby enhancing the aesthetics of the printed glass with through holes and the overall appearance harmony of the vehicle. It effectively solves the problems of excessively large printed white edges around the holes, uneven printed white edges, eccentricity of the printed white edges relative to the glass holes, and ink leakage that affect the printing quality and appearance harmony of printed glass with through holes caused by traditional screen printing.

[0086] See Figure 2 , Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, in step S3, holes are drilled along the inner edge 121 of the drilling outline 120 to obtain printed glass with through holes 130.

[0087] In step S3, it should be noted that, see Figure 2 and Figure 3 Since the punch outline 120 has a certain width, preferably d1 of 0.1mm to 0.5mm, the punch outline 120 includes an inner edge 121 and an outer edge 122. It is easy to understand that the inner edge of the punch outline 120 is far from the first ink layer 200, and the outer edge 122 is close to the first ink layer 200. The distance between the inner edge 121 and the outer edge 122 of the punch outline 120 is the width d1 of the punch outline 120.

[0088] In the specific implementation step S3, the position of the glass substrate 100 with the punched outline 120 obtained in step S2 is kept unchanged. Then, a laser punching process (using a laser punching device) is used to punch holes along the inner edge 121 of the punched outline 120, thereby removing the glass material surrounded by the punched outline 120, thus obtaining printed glass with through holes 130.

[0089] See Figure 6 , Figure 7 or Figure 8 , Figure 9 The area defined by the through-hole 130 of the printed glass is defined as the perforation area. It is easy to understand that the perforation outline 120 is located at the edge of the perforation area, with its inner edge 121 coinciding with the edge of the perforation area, and its outer edge 122 being d1 away from the edge of the perforation area. It is also easy to understand that the perforation outline 120 at the edge of the perforation area defines the printed white border around the perforation area of ​​the printed glass. The width of this printed white border is d1, and its geometric center coincides with the geometric center of the perforation area of ​​the printed glass.

[0090] See Figure 10 , Figure 11 and Figure 12 In some embodiments of this application, the step between step S2 and step S3 further includes the following step: Step 23, the area on the surface of the glass substrate 100 where the first ink layer 200 is not printed, corresponding to the drilling outline 120, is designated as the second preset area 140. The edge outline of the second preset area 140 is chamfered, and the width d2 of the chamfer is equal to the width d1 of the drilling outline 120. Simultaneously, the chamfer angle is 30° to 60°.

[0091] It should be noted that, see Figure 12 The surface of the glass substrate 100 where the first ink layer 200 is not printed is defined as the non-printing surface of the glass substrate 100, which corresponds to the second surface 102 of the glass substrate 100 described above. It is easy to understand that the drilling outline 120 is located on the first surface 101 (printing surface) of the glass substrate 100, and the second preset area 140 is located on the second surface 102 (non-printing surface) of the glass substrate 100, with the drilling outline 120 and the second preset area 140 corresponding vertically.

[0092] See Figure 12 It should be noted that the chamfer width d2 of the edge contour of the second preset area 140 corresponds to the distance between the inner and outer edges of the second preset area 140, and the chamfer angle of the edge contour of the second preset area 140 corresponds to the angle between the chamfer line and the glass substrate 100. It should be noted that the chamfer line has a small curvature and can be approximated as a straight line.

[0093] By chamfering the edge contour of the second preset area 140 and making the width d2 of the chamfer equal to the width d1 of the drilling contour line 120, the vertical projection of the drilling contour line 120 and the second preset area 140 relative to the glass substrate 100 is made to coincide. In this way, the drilling equipment can be positioned in the vertical direction to drill along the inner edge 121 of the drilling contour line 120, thereby improving the drilling accuracy.

[0094] On the other hand, it should be noted that the printed glass with through holes 130 obtained by drilling in step S3 needs to be bent to obtain printed glass with a certain degree of curvature. Moreover, the non-printed surface of the glass substrate 100 corresponds to the curved convex surface, and the printed surface of the glass substrate 100 corresponds to the curved concave surface. When the printed glass with through holes 130 is bent, the non-printed surface of the glass substrate 100 will be subjected to corresponding bending tensile stress, and the structural strength will decrease. If the edge of the through hole 130 of the printed glass is sharp at this time, the through hole 130 of the printed glass is prone to cracking, forming a defective product.

[0095] Based on this, by chamfering the second preset area 140 on the non-printing surface of the glass substrate 100, the sharpness of the edge of the through hole 130 of the printed glass can be eliminated before the printed glass is bent and formed, so that the edge of the through hole 130 of the printed glass forms a small arc, thereby reducing the cracking of the through hole 130 of the printed glass due to stress concentration or excessive stress during the bending and forming process, and improving the bending and forming quality of the printed glass.

[0096] Furthermore, it should be noted that in step S3, by drilling along the inner edge 121 of the drilling outline 120, a printed glass with through holes 130 is obtained, so that a small amount of white edge is formed around the through holes 130. The small amount of white edge area defined by the drilling outline 120 does not have an ink layer. In this way, the chamfer area corresponding to the second preset area 140 can be prevented from being covered by the surrounding ink layer.

[0097] In addition, since the second preset area 140 is located on the non-printed surface of the glass substrate 100, which corresponds to the surface of the subsequently formed printed glass facing the outside of the vehicle, and considering that electronic modules such as fingerprint touch elements, facial sensing elements, and cameras will be installed at the holes of the subsequently formed printed glass, there is a possibility that people outside the vehicle may routinely touch or observe the holes of the printed glass.

[0098] Based on this, by chamfering the second preset area 140 on the non-printed surface of the glass substrate 100, a sharp feeling is avoided when people outside the vehicle touch the holes in the printed glass. At the same time, when people outside the vehicle observe the holes in the printed glass, they can clearly see the aesthetically pleasing printed boundary lines on the printed surface of the glass substrate 100. Moreover, by chamfering the edge contour of the second preset area 140, assembly positioning can be provided for the subsequent assembly of electronic modules at the holes in the printed glass, improving the assembly performance of the electronic modules, reducing assembly gaps, and enabling the electronic modules to be integrated into the holes in the printed glass to form a good assembly effect, thereby improving the overall appearance coordination of the vehicle and the human-vehicle interaction experience.

[0099] Furthermore, it should be noted that, in order to improve the operational accuracy of removing the local area of ​​the first ink layer 200 in step S2 to form the perforation outline 120, chamfering the edge outline of the second preset area 140 in step S23, and perforating along the inner edge 121 of the perforation outline 120 to form printed glass with through holes 130 in step S3, the same laser equipment can be used to perform the laser film removal in step S2, the laser chamfering in step S23, and the laser perforation in step S3. Simultaneously, the maximum laser frequency of the laser equipment is controlled to be 30W to 60W, the percentage of laser power onset for laser perforation in step S3 is controlled to be equal to the percentage of laser power onset for laser chamfering in step S23, and the percentage of laser power onset for laser film removal in step S2 is controlled to be lower than the percentage of laser power onset for laser perforation in step S3 or lower than the percentage of laser power onset for laser chamfering in step S23.

[0100] Furthermore, in some embodiments, before printing the first ink layer 200 onto the glass substrate 100, the visible light transmittance of the glass substrate 100 is controlled to be greater than or equal to 50%. This ensures that the corresponding laser equipment can smoothly perform film removal, chamfering, and drilling operations on the glass substrate 100.

[0101] See Figure 13 In some embodiments of this application, step S1 includes the following step: S12, drying the first ink layer 200 on the surface of the glass substrate 100 to allow the first ink layer 200 to adhere to the surface of the glass substrate 100. This allows the first ink layer 200 to cure better, effectively adhering to the surface of the glass substrate 100, facilitating the subsequent removal of localized areas of the first ink layer 200, and providing a structural basis for forming a stable, uniform, and clear drilling outline 120.

[0102] Specifically, during the drying process of the first ink layer 200 on the surface of the glass substrate 100, the drying temperature is 120°C to 180°C.

[0103] It should be noted that when the drying temperature of the first ink layer 200 is too low, the first ink layer 200 cannot be completely cured, resulting in a weak bond between the first ink layer 200 and the glass substrate 100. This not only leads to poor printing quality of the glass substrate 100, but also causes uneven and unclear perforation outlines 120 formed in local areas after the removal of the first ink layer 200. This also causes uneven printing white edges around the through holes 130 of the printed glass, and eccentricity of the printing white edges relative to the through holes 130, which affects the printing quality and appearance coordination of the perforated printed glass.

[0104] When the drying temperature for the first ink layer 200 is too high, the bonding strength between the first ink layer 200 and the glass substrate 100 becomes too strong. This makes it difficult to control the laser intensity when removing portions of the first ink layer 200 to form the perforation outline 120. Similarly, other removal equipment also struggles to control the removal force when removing portions of the first ink layer 200. Excessive laser intensity or removal force can damage the structure of the glass substrate 100; conversely, insufficient intensity or force can prevent complete removal of the first ink layer 200, leading to uneven printing edges around the through-holes 130 and eccentricity of the printing edges relative to the through-holes 130, thus affecting the printing quality and appearance of the perforated glass.

[0105] Based on this, this application controls the drying temperature of the first ink layer 200 to 120℃~180℃. By reasonably controlling the drying temperature of the first ink layer 200, it can ensure that the first ink layer 200 is stably attached to the surface of the glass substrate 100, while also maintaining a moderate bonding strength between the first ink layer 200 and the glass substrate 100. This reduces the difficulty of removing part of the first ink layer 200 to form the drilling outline 120 using appropriate film removal equipment, avoids damage to the structure of the glass substrate 100, and provides a structural basis for forming a stable, uniform, and clear drilling outline 120.

[0106] See Figure 14 In some embodiments of this application, the printing method of the perforated printed glass of this application further includes the following steps: Step S4, hot bending of the glass substrate 100, wherein the first ink layer 200 is sintered during the hot bending process of the glass substrate.

[0107] It should be noted that step S3, i.e., drilling along the drilling outline 120, has already been completed before step S4, at which point the glass substrate 100 has through holes 300. Then, step S4 is performed to hot-bend the glass substrate 100. During this hot-bending process, the first ink layer 200 on the printed surface of the glass substrate 100 is sintered. By properly controlling the temperature and time of the hot-bending process, the first ink layer 200 can be more firmly bonded to the glass substrate 100, improving the bonding strength between the first ink layer 200 and the glass substrate 100, and enhancing the structural strength of the first ink layer 200. Furthermore, in step S1, the printed first ink layer 200 can be dried without sintering; instead, it can be sintered during the hot-bending process in step S4. This reduces the number of process steps and improves the processing efficiency of perforated printed glass.

[0108] Clearly, by hot-bending the glass substrate 100 after step S3, the first ink layer 200 can be sintered during the hot bending process, further bonding and solidifying it onto the glass substrate 100. This ensures the first ink layer 200 has high structural strength during subsequent use of the printed glass, improving product quality and processing efficiency. Furthermore, it yields printed glass with a certain degree of curvature, where the printed surface of the perforated glass is a curved concave surface and the non-printed surface is a curved convex surface, thus forming a finished printed glass that can be directly assembled into a vehicle.

[0109] Of course, in some other embodiments, step S1 includes the following steps: S13, sintering the first ink layer 200 attached to the surface of the glass substrate 100.

[0110] It should be noted that before implementing step S13, the first ink layer 200 needs to be dried first, so that the first ink layer 200 is pre-stably attached to the surface of the glass substrate 100 before implementing step S13, that is, sintering the dried first ink layer 200. Although sintering the first ink layer 200 will correspondingly increase the bonding strength between the first ink layer 200 and the glass substrate 100, by reasonably controlling the sintering temperature and sintering time, the bonding strength between the first ink layer 200 and the glass substrate 100 can also be kept moderate.

[0111] In some embodiments of this application, in step S3, holes are drilled along the outer edge 122 of the drilling outline 120 to obtain printed glass with through holes 130.

[0112] It is easy to understand that drilling directly along the outer edge 122 of the drilling outline 120 can make the perimeter of the through hole 130 free of white edges. However, compared with drilling along the inner edge 121 of the drilling outline 120, drilling along the outer edge 122 of the drilling outline 120 has certain process defects, which will not be elaborated here.

[0113] In some embodiments of this application, in step S1, when printing the first ink layer 200, the edge contour of the first ink layer 200 extends 2mm to 10mm beyond the edge contour of the first preset area 110, so that after forming the second ink layer around the first preset area 110, the second ink layer is removed.

[0114] It should be noted that the embodiments in this part correspond to the first preset area 110 on the surface of the glass substrate 100 being a part of the surface of the glass substrate 100, and do not correspond to the case where the first preset area 110 on the surface of the glass substrate 100 is the entire surface area of ​​the glass substrate 100.

[0115] However, when printing the first ink layer 200 on the first preset area 110 of the glass substrate 100 using screen printing, due to the influence of screen positioning deviation and glass size fluctuation, the first ink layer 200 often cannot completely cover the first preset area 110 or cannot completely overlap with the first preset area 110, resulting in the first ink layer 200 area being too large or too small, affecting the printing quality of the perforated glass.

[0116] Based on this, in this embodiment, when printing the first ink layer 200 on the first preset area 110 of the glass substrate 100, the edge contour of the first ink layer 200 extends 2mm to 10mm beyond the edge contour of the first preset area 110. A second ink layer with a width of 2mm to 10mm is then formed around the periphery of the first preset area 110. This second ink layer is then removed along the edge contour of the first preset area 110 using a corresponding laser film removal device. This effectively solves the problem of the first ink layer 200 being too large or too small due to screen positioning deviation and glass size fluctuations, ensuring that the first ink layer 200 completely covers and overlaps the first preset area 110, further improving the printing quality of the perforated printed glass, thereby further improving the aesthetics of the perforated printed glass and the overall appearance harmony of the vehicle.

[0117] See Figure 15 In some embodiments of this application, step S3 further includes the following steps: S31, after drilling along the drilling outline 120, using filtered air to blow and suction the two surfaces of the glass substrate 100. This effectively cleans the glass residue generated during the drilling process of the glass substrate 100, resulting in a clean-looking printed glass with through-holes 130.

[0118] In some embodiments of this application, the through-hole 130 on the printed glass is any one of a round hole, an elliptical hole, a polygonal hole, an oblong hole, and a stepped hole.

[0119] It is understood that the printed glass with through holes 130 formed in step S3 will be assembled on a vehicle, preferably on the vehicle's center pillar. Electronic modules such as fingerprint touch elements, facial sensing elements, and cameras will be installed and integrated at the through holes 130 of the printed glass. According to the actual assembly requirements, printed glass with one or more through holes 130 can be manufactured according to the printing method of the perforated printed glass of this application. The shape of the through holes 130 on the printed glass can be made into any one of the following: round hole, elliptical hole, polygonal hole, waist-shaped hole, and stepped hole, or other irregular hole shapes, so as to improve the compatibility and adaptability of the perforated printed glass and meet the different needs of users.

[0120] It should be noted that during the process of printing the first ink layer 200 on the first preset area 110 of the glass substrate 100 surface in step S1, the quality of the ink material used for printing will also affect the adhesion and bonding strength between the first ink layer 200 and the surface of the glass substrate 100 to a certain extent.

[0121] As explained above, if the bonding strength between the first ink layer 200 and the glass substrate 100 is too low, it will not only result in poor printing quality of the glass substrate 100, but also make the perforation outline 120 formed in the local area after removing the first ink layer 200 uneven and unclear. This will cause problems such as uneven printing white edges around the through holes of the printed glass and eccentricity of the printing white edges relative to the through holes, which will affect the printing quality and appearance coordination of the perforated printed glass.

[0122] When the bonding strength between the first ink layer 200 and the glass substrate 100 is too high, it becomes difficult to control the laser intensity when the laser film removal equipment removes a portion of the first ink layer 200 to form the perforation outline 120 during the subsequent removal of the local area of ​​the first ink layer 200. If the laser intensity or film removal force is too high when removing a portion of the first ink layer 200, it can easily damage the structure of the glass substrate 100; if the laser intensity or film removal force is too low, the local area of ​​the first ink layer 200 cannot be completely removed, which will also cause problems such as uneven printing white edges around the through-hole 130 of the printed glass, and eccentricity of the printing white edges relative to the through-hole 130, affecting the printing quality and appearance coordination of the perforated printed glass.

[0123] Based on this, in some embodiments of this application, the first ink layer 200 is formed by printing the printing composition onto the surface of the glass substrate 100 and then curing it; the printing composition includes 70% to 85% structural components and 15% to 30% auxiliary components by mass percentage; the structural components include 15% to 30% SiO2, 25% to 50% Bi2O3, 10% to 25% Cr2O3, 5% to 10% CuO, 2% to 19% ZnO, 0.1% to 6% TiO2, 0.1% to 4% Fe2O3, 0.2% to 2% Al2O3, 0% to 8% Na2O, 0% to 5% K2O, 0% to 5% NiO, 0% to 1% CaO, and 0% to 1% MgO by mass percentage; the auxiliary components include 80% to 90% organic solvent, 0.5% to 1.5% additives, and 10% to 20% binder by mass percentage.

[0124] Specifically, the organic solvent can be composed of one or more of the following: turpentine oil, terpineol, diethylene glycol ethyl ether, diethylene glycol, n-octanol, ethylene glycol, n-pentanol, n-butanol, diethylene glycol butyl ether, diethylene glycol butyl ether acetate, diacetone alcohol, hydrogenated castor oil, etc. The additives include dispersants, leveling agents, and thixotropic agents. The dispersant is selected from one of the following: DA302N, TEGO Dispers 652, DISPERBYK-161 / 162 / 164 / 165, etc. The leveling agent is one or more of the following: acrylic resin, polydimethylsiloxane, etc., in any proportion. The thixotropic agent is fumed silica.

[0125] The binder includes resin and ethyl cellulose, and the mass content of resin to ethyl cellulose is in the ratio of 4 / 6 to 6 / 4.

[0126] The following describes different printing methods for perforated printed glass and the production of perforated printed glass using different printing compositions and proportions.

[0127] Examples 1 to 4 are examples of printing glass with perforations produced using the printing composition and printing method for perforated printed glass provided in this application. The only difference between Examples 1 and 4 is that the percentage of the binder mass content in the printing composition used to print the first ink layer 200 is different from the percentage of the auxiliary component mass content. At the same time, the ratio of the resin mass content to the ethyl cellulose mass content in the binder of the auxiliary component is different.

[0128] Comparative Examples 1 to 2 were made using conventional printing methods to produce perforated printed glass. The only difference between Comparative Examples 1 and 2 was that the percentage of the binder mass content in the printing composition used to print the first ink layer 200 was different relative to the mass content of the auxiliary components. At the same time, the ratio of the mass content of resin to the mass content of ethyl cellulose in the binder of the auxiliary components was different.

[0129] The only difference between Comparative Examples 3 to 6 and Examples 1 to 4 is that the percentage of the binder mass content in the printing composition used to print the first ink layer 200 is different from that of the auxiliary components. At the same time, the ratio of the mass content of resin to the mass content of ethyl cellulose in the binder of the auxiliary components is different, and the ratio of the mass content of resin to the mass content of ethyl cellulose in the binder of the auxiliary components is not in the range of 4 / 6 to 6 / 4 given in this application.

[0130] Table 1

[0131]

[0132] Table 2

[0133]

[0134]

[0135] Based on Tables 1 and 2 above, it can be concluded that the width of the printed white edge around the through hole of the printed glass produced by the traditional printing method (corresponding to Comparative Example 1 and Comparative Example 2) is too large, exceeding 1mm. Moreover, there is a certain degree of eccentricity between the through hole and the printed white edge around it, that is, the geometric center of the through hole and the geometric center of the printed white edge around it cannot be completely coincident.

[0136] When using the printing method for perforated printed glass of this application but not the printing composition of this application (comparing Comparative Examples 3 to 6), if the percentage of the binder mass content in the printing composition relative to the mass content of the auxiliary components is too low, serrations are easily generated at the edges of the printed white edges; if the percentage of the binder mass content in the printing composition relative to the mass content of the auxiliary components is too high, burrs are easily generated at the edges of the printed white edges, the ink on the printed white edges is not completely removed, and the glass substrate is easily damaged; if the percentage of the binder mass content relative to the mass content of the auxiliary components is normal but the percentage of the resin mass content in the binder is low, serrations are easily generated at the edges of the printed white edges, and small pieces of glass substrate may detach from the edges of the printed white edges; if the percentage of the binder mass content relative to the mass content of the auxiliary components is normal but the percentage of the resin mass content in the binder is high, the ink on the printed white edges is easily not completely removed, and the glass substrate is easily damaged.

[0137] The printing method for perforated printed glass (corresponding to Examples 1 to 3) using the printing composition and perforated printed glass provided in this application ensures that the proportions of each component in the printing composition are appropriate. This results in a suitable adhesion bond on the glass substrate after the first ink layer has dried and cured. Consequently, the perforation outline is clear and distinct, the edges of the printed white edges do not peel or produce small jagged edges, the ink on the printed white edges is cleanly removed, the glass substrate 100 is not damaged, and the geometric center of the through-hole of the printed glass basically coincides with the geometric center of the printed white edges around the through-hole. The printing quality of the glass substrate 100 will not be poor, or the perforation outline 120 will not be uneven or unclear due to insufficient adhesion bond between the first ink layer and the glass substrate. Conversely, the glass substrate 100 will not be damaged, or the ink on the printed white edges will not be cleanly removed due to excessive adhesion bond between the first ink layer and the glass substrate.

[0138] In some embodiments of this application, this application also provides a printed glass, which is made by the above-described printing method for perforated printed glass.

[0139] Obviously, the printed glass produced by the printing method for perforated printed glass of this application can control the width of the printed white edge around the through-hole of the printed glass to a minimum of 0.1 mm and a maximum of 0.3 mm. Furthermore, it ensures that the geometric center of the printed white edge around the through-hole coincides with the geometric center of the through-hole, guaranteeing the uniformity of the printed white edge around the through-hole. This improves the printing precision and quality of the area surrounding the through-hole, thereby enhancing the aesthetics of the perforated printed glass and the overall appearance harmony of the vehicle.

[0140] See Figure 16 and Figure 17 In some embodiments of this application, the printed glass 300 includes a perforated area 310, a printing area 320 located around the perforated area 310, and a white edge area 330 located between the perforated area 310 and the printing area 320. The width of the white edge area 330 is 0.1mm to 0.5mm, and the geometric center of the perforated area 310 coincides with the geometric center of the white edge area 330.

[0141] It is easy to understand that the perforated area 310 of the printed glass 300 corresponds to the through-hole area of ​​the printed glass 300, the white edge area 330 of the printed glass 300 corresponds to the printed white edge defined by the perforation outline, and the printing area 320 corresponds to the first ink layer after removing the local area. Similarly, since the printed glass of this application is made using the above-mentioned printing method for perforated printed glass, the surrounding area of ​​the through-hole of the printed glass has better printing precision and printing quality, improving the aesthetics of the printed glass and the overall appearance harmony of the vehicle.

[0142] Of course, in some embodiments, see Figure 16 and Figure 17 The printed glass 300 also includes a non-printed area 340, which encloses the printed area 320.

[0143] In addition, this application also provides a vehicle that includes the above-described printed glass.

[0144] Specifically, the printed glass can be mounted on the center pillar of a vehicle, and electronic modules such as fingerprint touch elements, facial sensing elements, and cameras can be installed and integrated through the through holes of the printed glass.

[0145] Obviously, the vehicle of this application, because it is equipped with printed glass made by the above-mentioned printing method for perforated printed glass, also has the same technical effect brought by the printed glass, that is, it can ensure that the periphery of the through hole of the printed glass has good printing accuracy and printing quality, thereby improving the aesthetics of the printed glass and the overall appearance coordination of the vehicle.

[0146] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0147] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A printing method for perforated printed glass, characterized in that, Includes the following steps: Step S1: Provide a glass substrate and print a first ink layer on a first preset area on the surface of the glass substrate; Step S2: Remove a local area of ​​the first ink layer to form a hole outline on the surface of the glass substrate; Step S3: The perforation outline includes an inner edge and an outer edge. The inner edge of the perforation outline is far away from the first ink layer, and the outer edge of the perforation outline is close to the first ink layer. The distance between the inner edge and the outer edge is the width of the perforation outline. Drill holes along the inner edge of the perforation outline to obtain printed glass with through holes. Between step S2 and step S3, the following steps are also included: Step 23, the area on the surface of the glass substrate without the first ink layer that corresponds to the perforation outline is the second preset area, the perforation outline and the second preset area are vertically aligned, and the edge outline of the second preset area is chamfered, the width of the chamfer is equal to the width of the perforation outline; Step S4: The glass substrate is hot-bent and formed, wherein the first ink layer is sintered during the hot-bending and forming process of the glass substrate.

2. The printing method for perforated printed glass according to claim 1, characterized in that, The chamfer angle is 30°~60°.

3. The printing method for perforated printed glass according to claim 1, characterized in that, Step S1 includes the following steps: S12, drying the first ink layer on the surface of the glass substrate so that the first ink layer adheres to the surface of the glass substrate.

4. The printing method for perforated printed glass according to claim 3, characterized in that, The drying conditions include a drying temperature of 120℃ to 180℃.

5. The printing method for perforated printed glass according to any one of claims 1 to 4, characterized in that, In step S3, a laser drilling process is used to drill holes along the drilling outline.

6. The printing method for perforated printed glass according to any one of claims 1 to 4, characterized in that, In step S1, when printing the first ink layer, the edge contour of the first ink layer extends 2mm to 10mm beyond the edge contour of the first preset area, so that a second ink layer is formed outside the first preset area, and then the second ink layer is removed.

7. The printing method for perforated printed glass according to any one of claims 1 to 4, characterized in that, Step S3 further includes the following steps: S31, after drilling along the drilling outline, use filtered air to blow and suck up the two surfaces of the glass substrate.

8. The printing method for perforated printed glass according to any one of claims 1 to 4, characterized in that, The through hole can be any one of the following shapes: round hole, elliptical hole, polygonal hole, oblong hole, and stepped hole.

9. The printing method for perforated printed glass according to any one of claims 1 to 4, characterized in that, Before printing the first ink layer onto the glass substrate, the visible light transmittance of the glass substrate is controlled to be greater than or equal to 50%.

10. The printing method for perforated printed glass according to any one of claims 1 to 4, characterized in that, The first ink layer is formed by printing a printing composition onto the surface of the glass substrate and then curing it. The printing composition comprises 70% to 85% structural components and 15% to 30% auxiliary components by weight percentage; The structural components comprise 15% to 30% by mass percentage. 25%~50% 10%~25% 5%~10% 2%~19% 0.1%~6% 0.1%~4% 0.2%~2% 0-8% 0-5% 0-5% 0~1% and 0~1% ; The auxiliary components, by mass percentage, include 80% to 90% organic solvent, 0.5% to 1.5% auxiliaries, and 10% to 20% binders.

11. The printing method for perforated printed glass according to claim 10, characterized in that, The binder includes resin and ethyl cellulose, and the mass content of the resin to the mass content of the ethyl cellulose is in the ratio of 4 / 6 to 6 / 4.

12. A printed glass made by the printing method of perforated printed glass as described in any one of claims 1 to 11.

13. The printed glass according to claim 12, characterized in that, The printed glass includes a perforated area, a printing area surrounding the perforated area, and a white edge area between the perforated area and the printing area. The width of the white edge area is 0.1mm to 0.5mm, and the geometric center of the perforated area coincides with the geometric center of the white edge area.

14. A vehicle, characterized in that, Including the printed glass as described in claim 12 or 13.

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