CN114537005A - Transfer printing process for curved-surface window glass - Google Patents
Transfer printing process for curved-surface window glass Download PDFInfo
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- CN114537005A CN114537005A CN202210188830.6A CN202210188830A CN114537005A CN 114537005 A CN114537005 A CN 114537005A CN 202210188830 A CN202210188830 A CN 202210188830A CN 114537005 A CN114537005 A CN 114537005A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Printing Methods (AREA)
Abstract
The embodiment of the application provides a transfer printing process for curved-surface window glass. The transfer printing process comprises the following steps: etching a bottom edge BM frame graph on the upper surface of the transfer printing steel plate, wherein the etching depth of the BM frame graph is 0.017 mm; filling pad printing ink in the BM frame graph, wherein the proportion of pigment in the pad printing ink is 32%, matte material is added in the pad printing ink, and the pad printing ink is high-density pad printing black ink; transfer the pad printing ink filled in the BM frame graph to the curved glass through the pad printing silica gel to form a first BM ink frame graph layer, so as to obtain the curved window glass. Like this, through once printing, can accomplish the printing of the BM frame figure on the curved surface window glass under the prerequisite that promotes the bat printing ink adhesive strength who assembles the laminating with electronic equipment's center, consequently can reduce required equipment, the material of printing, consequently make the manufacturing cost at curved surface window glass bat printing technology reduce, and promoted the technological efficiency of curved surface window glass bat printing technology.
Description
Technical Field
The application relates to the field of pad printing processes, in particular to a pad printing process for curved-surface window glass.
Background
In the curved window glass pad printing process, one-degree Bottom edge (BM) frame printing and two-degree BM frame printing are involved. In the printing process of the first-degree BM frame and the second-degree BM frame, the second-degree printing ink adopts the matte printing ink, so that the bonding strength of the printing ink assembled and attached to the middle frame is improved.
However, in the one-degree BM frame printing and two-degree BM frame printing processes, corresponding equipment and materials need to be added, so that the manufacturing cost of the curved surface window glass pad printing process is increased, and the process efficiency of the curved surface window glass pad printing process is reduced.
Disclosure of Invention
The embodiment of the application provides a curved surface window glass pad printing process to solve the problems of high manufacturing cost and low process efficiency of the curved surface window glass pad printing process caused by a two-degree BM frame printing process in the related art.
In order to solve the technical problem, the present application is implemented as follows:
the embodiment of the application provides a curved surface window glass bat printing technology, the bat printing technology includes:
etching a bottom edge BM frame graph on the upper surface of the transfer printing steel plate, wherein the etching depth of the BM frame graph is 0.017 mm;
filling pad printing ink in the BM frame graph, wherein the proportion of pigment in the pad printing ink is 32%, matte materials are added in the pad printing ink, and the pad printing ink is high-density pad printing black ink;
and transferring the transfer printing ink filled in the BM frame graph onto curved glass through the transfer printing silica gel to form a first BM ink frame graph layer, so as to obtain the curved window glass.
Optionally, before obtaining the curved window glass, the pad printing process further includes:
filling the transfer printing ink in the BM frame graph on the transfer printing steel plate again;
and transferring the transfer printing ink filled in the BM frame graph again to curved glass through the transfer printing silica gel, and forming a second BM printing ink frame graph layer on the first BM printing ink frame graph layer.
Optionally, the second BM ink border pattern layer and the first BM ink border pattern layer are offset by a first value in a first direction, where the first direction is a direction consistent with the long edge of the curved window glass, and the first value is greater than or equal to 0.01 mm and less than or equal to 0.05 mm.
Optionally, the first value is 0.05 mm.
Optionally, through the bat printing silica gel will the pad printing ink that fills in BM frame figure shifts to curved surface glass on includes:
the pad printing silica gel picks up the pad printing ink from the BM frame graph through pressure;
and the pad printing silica gel imprints the picked pad printing ink on the curved glass by pressure.
Optionally, after the pad printing silica gel picks up the pad printing ink from the BM frame graph by pressure, the method further includes:
and baking the picked pad printing ink.
Optionally, the hardness of the pad printing silica gel is a second numerical value, wherein the second numerical value is greater than or equal to 35 shore hardness and less than or equal to 48 shore hardness.
Optionally, the pad printing ink further comprises epoxy resin, ketone solvent and auxiliary agent.
Optionally, the proportion of the epoxy resin is 30%, the proportion of the ketone solvent is 24%, and the proportion of the auxiliary agent is 14%.
Optionally, before etching the bottom edge BM frame pattern on the upper surface of the pad printing steel plate, the pad printing process further includes:
the pad printing steel plate, the pad printing silica gel and the pad printing ink are subjected to full-automatic pad printing;
debugging the full-automatic pad printing machine table, and setting a preset printing program.
As can be seen from the above embodiments, in the embodiments of the present invention, a BM frame pattern at a bottom edge is etched on the upper surface of a pad printing steel plate, pad printing ink is filled in the BM frame pattern, and then the pad printing ink filled in the BM frame pattern is transferred onto curved glass by pad printing silica gel to form a first BM ink frame pattern layer, so as to obtain curved window glass. Because the etching depth of the BM frame graph is 0.017 mm, the proportion of pigment in the pad printing ink is 32%, a matte material is added in the pad printing ink, and the pad printing ink is high-density pad printing black ink, the bonding strength of the pad printing ink assembled and attached with the middle frame in the obtained curved surface window glass can be improved, and the light absorption rate is improved while the density of the pad printing ink is improved. In conclusion, the curved surface window glass transfer printing process only uses the same printing ink, and the printing of the BM frame graph on the curved surface window glass can be completed by one-time printing on the premise of improving the density of the transfer printing ink and the bonding strength of the transfer printing ink assembled and attached to the middle frame of the electronic equipment, so that the equipment and materials required by printing can be reduced, the manufacturing cost of the curved surface window glass transfer printing process is reduced, and the process efficiency of the curved surface window glass transfer printing process is improved.
In addition, a second BM printing ink frame graph layer covering the first BM printing ink frame graph layer can be formed through twice stamping, and then the printing ink density value of the BM frame graph of the formed curved surface window glass can reach more than 5.0 through twice stamping, so that the light shielding performance of the curved surface window glass is improved. And because the practical pad printing ink of the two-time impressing is the same, the pad printing can be completed by one set of equipment and materials required by printing, so that the manufacturing cost of the curved surface window glass pad printing process is further reduced, and the process efficiency of the curved surface window glass pad printing process is further improved. And under the condition that the second BM printing ink frame graphic layer and the first BM printing ink frame graphic layer deviate from a first value in the first direction, the second BM printing ink frame graphic layer generated by twice imprinting can be enabled to be covered on the first BM printing ink frame graphic layer in a staggered manner, and then the second BM printing ink frame graphic layer can shield sand holes generated on the first BM printing ink frame graphic layer, so that the occurrence of the defects of the sand holes and the like can be avoided while the light shielding performance of the curved surface window glass is improved.
Drawings
FIG. 1 is a flow chart illustrating a curved window glass pad printing process according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of another curved window glass pad printing process provided in an embodiment of the present application;
fig. 3 shows a schematic structural diagram of a curved-surface window glass provided by the embodiment of the application.
Reference numerals are as follows:
1: a first BM ink border graphic layer; 2: and the second BM ink border graphic layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In a first aspect, referring to fig. 1, a schematic flow chart of a curved window glass pad printing process provided in an embodiment of the present application is shown. As shown in fig. 1, the pad printing process includes:
and S101, etching a bottom edge BM frame graph on the upper surface of the transfer printing steel plate, wherein the etching depth of the BM frame graph is 0.017 mm.
It should be noted that the BM frame refers to an ink printing area around the glass cover of the electronic product. In an embodiment of the present invention, the electronic product may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, a super-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), or the like, and the non-mobile electronic device may be a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like, which is not limited in this embodiment.
The pad printing steel plate may be any one of steel plate materials made of chromium steel, K460 steel, bearing steel, spring steel, and the like, which is not limited in the embodiment of the present invention. In the embodiment of the invention, the pad printing steel plate can be a bearing steel plate, so that the pad printing steel plate has good wear resistance, good processing performance, fine and uniform organization structure and good corrosion resistance, and the BM frame graph at the bottom edge is conveniently etched on the pad printing steel plate.
The transfer printing steel plate can obtain a bottom edge BM frame pattern on the upper surface of the transfer printing steel plate by coating, exposing, developing and chemically etching. In embodiments of the present invention, the thickness of the pad printing steel plate may be greater than or equal to 14 mm and less than or equal to 16 mm. The etching depth of the BM frame graph is 0.017 millimeters, so that the upper limit of the thickness of the ink after pad printing can be improved by 1 to 3um micrometers.
And S102, filling pad printing ink in the BM frame graph, wherein the proportion of pigment in the pad printing ink is 32%, matte material is added in the pad printing ink, and the pad printing ink is high-density pad printing black ink.
Note that the pad printing ink may be applied by ink through a squeegee in the BM frame pattern formed by etching. In the embodiment of the invention, as the proportion of the pigment in the pad printing ink is 32%, the light shielding performance of the pad printing ink is improved to meet the high density requirement (the optical density is more than 5.0), and when the formula of the pad printing ink is adjusted, a proper amount of matte material is added to improve the surface energy of the pad printing ink to ensure that the absorbance of the pad printing ink is improved to more than 90%, and the matte material is preferably black matte paint, so that the bonding strength of the pad printing ink of the BM frame pattern on the formed curved window glass is enhanced. In addition, the high-density pad printing black ink is a material of the light shielding material in the pad printing ink, and therefore, the light shielding performance of the pad printing ink can be improved.
Optionally, the pad printing ink further comprises an epoxy resin, a ketone solvent and an auxiliary agent. Specifically, the epoxy resin is a high molecular polymer, and since it has a secondary hydroxyl group and an epoxy group, the secondary hydroxyl group can react with isocyanate. The epoxy resin is used as the polyalcohol to be directly added into the hydroxyl-containing component of the polyurethane adhesive, only the hydroxyl participates in the reaction by using the method, and the epoxy group does not react, so that the pad printing ink added with the epoxy resin has better adhesive strength and chemical resistance. The ketone solvent can be any one of solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, isophorone and diacetone alcohol, the methyl ethyl ketone solvent can be selected as the ketone solvent because the printing ink comprises the epoxy resin, and the methyl ethyl ketone solvent has high boiling point, is slowly volatilized and is colorless liquid, so that the method is favorable for increasing the dissolution of other components in the pad printing ink under the condition that the ketone solvent is added in the pad printing ink. The auxiliary agent can comprise one or more of auxiliary agents and additives such as a drier, a thinner, a viscosity reducer, a thinner, an antioxidant, a reverse gelatinizing agent, a defoaming agent, a surfactant, a pinhole preventing agent, a slipping agent, a plasticizer, a preservative, a spice and the like, so that the related chemical performance in the pad printing ink is improved.
In the present example, the proportion of the epoxy resin was 30%, the proportion of the ketone solvent was 24%, and the proportion of the auxiliary agent was 14%. Therefore, the bonding strength and the chemical resistance of the pad printing ink can be kept at a certain value by setting the proportion of the epoxy resin to be 30%, and the bonding strength of the pad printing ink is favorably improved.
S103: transfer the pad printing ink filled in the BM frame graph to the curved glass through pad printing silica gel to form a first BM ink frame graph layer 1, and obtain the curved window glass.
Specifically, the pad printing silica gel comprises a curved surface pad printing head, when the pad printing is performed, pad printing ink filled in BM frame graphs can be printed on the curved surface pad printing head of the pad printing silica gel by applying pressure, then the pad printing ink picked up on the surface pad printing head is transferred onto curved surface glass by applying pressure, a peripheral ink printing area is formed on the curved surface glass, and a first BM ink frame graph layer 1 is formed, so that the curved surface glass forms curved surface window glass.
Further, step S103 may include: the pad printing silica gel picks up the pad printing ink from the BM frame graph through pressure, and then the pad printing silica gel imprints the picked-up pad printing ink on the curved glass through the pressure. Like this, can be through exerting pressure twice to the bat printing silica gel successfully with the bat printing ink of BM frame figure intussuseption shift to curved surface glass on, and because bat printing silica gel has the oil that oils effectual, the gum is fine and smooth, advantage such as resilience force is good, consequently can make the BM frame figure that shifts to curved surface glass comparatively clear.
Optionally, after the pad printing silica gel picks up the pad printing ink from the BM frame pattern by pressure, the picked-up pad printing ink may be baked. Like this, through carrying out the baking process with the bat printing ink of picking up, can give the stoving with the moisture in the bat printing ink that shifts to on the curved surface glass, and then make the surface that forms first BM ink frame graphic layer 1 become smooth, and be favorable to strengthening the hardness of first BM ink frame graphic layer 1.
As can be seen from the above embodiments, in the embodiments of the present invention, a BM frame pattern at a bottom edge is etched on the upper surface of a pad printing steel plate, pad printing ink is filled in the BM frame pattern, and then the pad printing ink filled in the BM frame pattern is transferred onto curved glass by pad printing silica gel to form a first BM ink frame pattern layer 1, so as to obtain curved window glass. Because the etching depth of the BM frame graph is 0.017 millimeters, the proportion of pigment in the pad printing ink is 32 percent, the matte material is added in the pad printing ink, and the pad printing ink is high-density pad printing black ink, the bonding strength of the pad printing ink assembled and attached to the middle frame in the obtained curved surface window glass can be improved, and the light absorption rate is improved while the density of the pad printing ink is improved. In conclusion, the curved surface window glass transfer printing process only uses the same printing ink, and the printing of the BM frame graph on the curved surface window glass can be completed by one-time printing on the premise of improving the density of the transfer printing ink and the bonding strength of the transfer printing ink assembled and attached to the middle frame of the electronic equipment, so that the equipment and materials required by printing can be reduced, the manufacturing cost of the curved surface window glass transfer printing process is reduced, and the process efficiency of the curved surface window glass transfer printing process is improved.
In a second aspect, in order to avoid bad printing appearances such as the sand hole edge generated by the BM frame printing on the curved surface window glass, as shown in fig. 2, before the curved surface window glass is obtained, the curved surface window glass pad printing process further includes:
s104, filling pad printing ink again in the BM frame graph on the pad printing steel plate;
the pad printing ink may be drawn down again into the etched BM frame pattern by using oil. And the step S302 is the same as the step S302 of refilling the pad printing ink in the BM frame pattern on the pad printing steel plate, which is not described again in the embodiment of the present invention.
S105: and transferring the transfer printing ink filled again in the BM frame graph onto the curved glass through transfer printing silica gel, and forming a second BM ink frame graph layer 2 on the first BM ink frame graph layer 1.
It should be noted that the pad printing ink can be picked up from the BM frame pattern by the pad printing silica gel through pressure, then the pad printing ink picked up is stamped on the curved glass by the pad printing silica gel through pressure, and then the pad printing ink filled in the BM frame pattern can be transferred onto the curved glass by applying pressure to the pad printing silica gel twice, so as to form the second BM ink frame pattern layer 2 covering the first BM ink frame pattern layer 1. Therefore, as the densities of the transfer printing ink in the first BM ink frame graphic layer 1 of the transfer printing ink in the second BM ink frame graphic layer 2 are consistent, and the components of the transfer printing ink in the second BM ink frame graphic layer 2 are consistent with those of the transfer printing ink in the first BM ink frame graphic layer 1, the ink density value of the BM frame graphic of the formed curved window glass can reach more than 5.0 through twice imprinting, and the light shielding performance of the curved window glass is further improved. And because the practical pad printing ink of the two-time impressing is the same, the pad printing can be completed by one set of equipment and materials required by printing, so that the manufacturing cost of the curved surface window glass pad printing process is further reduced, and the process efficiency of the curved surface window glass pad printing process is further improved.
Optionally, the second BM ink border graphic layer 2 and the first BM ink border graphic layer 1 are offset by a first value in a first direction, where the first direction is a direction consistent with the long side of the curved window glass, and the first value is greater than or equal to 0.01 mm and less than or equal to 0.05 mm. Like this, because the dislocation of second BM printing ink frame graphic layer 2 that twice impression produced covers on first BM printing ink frame graphic layer 1 for the sand hole that produces on first BM printing ink frame graphic layer 1 can be shielded off to second BM printing ink frame graphic layer 2, and then when promoting curved surface window glass's light shielding nature, can avoid the emergence of defects such as sand hole. It should be noted that the first direction is a Y direction as shown in fig. 3, and the offset of the second BM ink border graphic layer 2 and the first BM ink border graphic layer 1 in the first direction is shown as a distance D in fig. 3.
Further, first numerical value is 0.05 millimeter, like this, through being provided with first numerical value 0.05 millimeter, can be under the prerequisite that does not influence the size and the outward appearance of the BM frame figure that forms for the defect that the sand hole limit is passed through obtains furthest's avoidance.
In addition, in the embodiment of the present invention, before step 101, the pad printing process may further include:
and (3) adjusting the full-automatic pad printing machine table for the pad printing steel plate, the pad printing silica gel and the pad printing ink, and setting a preset printing program. It should be noted that the preset printing program is an automatic production program set by the pad printing equipment used in the pad printing process during the pad printing operation. Through debugging full-automatic bat printing board, set up and predetermine the printing procedure, when realizing automatic printing, can ensure that the size and the outward appearance of the BM frame figure that forms on the curved surface window glass can keep unanimous, and then make curved surface window glass's specification reach preset standard.
As can be seen from the above embodiments, in the embodiments of the present invention, a BM frame pattern at a bottom edge is etched on the upper surface of a pad printing steel plate, pad printing ink is filled in the BM frame pattern, and then the pad printing ink filled in the BM frame pattern is transferred onto curved glass by pad printing silica gel to form a first BM ink frame pattern layer 1, so as to obtain curved window glass. Because the etching depth of the BM frame graph is 0.017 millimeters, the proportion of pigment in the pad printing ink is 32 percent, the matte material is added in the pad printing ink, and the pad printing ink is high-density pad printing black ink, the bonding strength of the pad printing ink assembled and attached to the middle frame in the obtained curved surface window glass can be improved, and the light absorption rate is improved while the density of the pad printing ink is improved. In conclusion, the curved surface window glass transfer printing process only uses the same printing ink, and the printing of the BM frame graph on the curved surface window glass can be completed by one-time printing on the premise of improving the density of the transfer printing ink and the bonding strength of the transfer printing ink assembled and attached to the middle frame of the electronic equipment, so that the equipment and materials required by printing can be reduced, the manufacturing cost of the curved surface window glass transfer printing process is reduced, and the process efficiency of the curved surface window glass transfer printing process is improved.
In addition, can form the second BM printing ink frame graphic layer 2 that covers on first BM printing ink frame graphic layer 1 through twice impression, and then make the printing ink density value of the BM frame graphic of the curved surface window glass who forms reach more than 5.0 through twice impression to promote curved surface window glass's light shielding nature. And because the practical pad printing ink of the two-time impressing is the same, the pad printing can be completed by one set of equipment and materials required by printing, so that the manufacturing cost of the curved surface window glass pad printing process is further reduced, and the process efficiency of the curved surface window glass pad printing process is further improved. And under the condition that second BM printing ink frame graphic layer 2 and first BM printing ink frame graphic layer 1 deviate from a first numerical value in a first direction, second BM printing ink frame graphic layer 2 that can make twice impression produce misplaces and covers on first BM printing ink frame graphic layer 1, and then make second BM printing ink frame graphic layer 2 can shield the sand hole that produces on first BM printing ink frame graphic layer 1, when promoting curved surface window glass's light shielding nature, can avoid the emergence of defects such as sand hole.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While alternative embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or terminal device comprising the element.
The technical solutions provided in the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, and meanwhile, for a person of ordinary skill in the art, according to the principles and implementation manners of the present application, changes may be made in the specific embodiments and application ranges.
Claims (10)
1. The transfer printing process for the curved window glass is characterized by comprising the following steps of:
etching a bottom edge BM frame graph on the upper surface of the transfer printing steel plate, wherein the etching depth of the BM frame graph is 0.017 mm;
filling pad printing ink in the BM frame graph, wherein the proportion of pigment in the pad printing ink is 32%, matte materials are added in the pad printing ink, and the pad printing ink is high-density pad printing black ink;
and transferring the transfer printing ink filled in the BM frame graph onto curved glass through the transfer printing silica gel to form a first BM ink frame graph layer, so as to obtain the curved window glass.
2. The process of claim 1, wherein prior to obtaining the curved window glass, the process further comprises:
filling the transfer printing ink in the BM frame graph on the transfer printing steel plate again;
and transferring the transfer printing ink filled in the BM frame graph again to curved glass through the transfer printing silica gel, and forming a second BM printing ink frame graph layer on the first BM printing ink frame graph layer.
3. The curved window glass pad printing process of claim 2, wherein the second BM ink border pattern layer and the first BM ink border pattern layer are offset in a first direction by a first value, wherein the first direction is the same direction as the long side of the curved window glass, and the first value is greater than or equal to 0.01 mm and less than or equal to 0.05 mm.
4. The curved window glass pad printing process of claim 3, wherein the first value is 0.05 mm.
5. The transfer printing process for the curved window glass according to claim 1, wherein the step of transferring the transfer printing ink filled in the BM frame pattern onto the curved glass through the transfer printing silica gel comprises:
the pad printing silica gel picks up the pad printing ink from the BM frame graph through pressure;
and the pad printing silica gel imprints the picked pad printing ink on the curved glass by pressure.
6. The curved window glass pad printing process of claim 5, wherein after the pad printing silicone picks up the pad printing ink from the BM frame pattern by pressure, the process further comprises:
and baking the picked pad printing ink.
7. The process of claim 1, wherein the hardness of the pad printing silicone is a second value, wherein the second value is greater than or equal to 35 shore d and less than or equal to 48 shore d.
8. The process of claim 1, wherein the pad printing ink further comprises an epoxy resin, a ketone solvent, and an auxiliary agent.
9. The curved window glass pad printing process of claim 8, wherein the epoxy resin is 30%, the ketone solvent is 24%, and the assistant is 14%.
10. The pad printing process for curved window glass according to claim 1, wherein before etching the bottom edge BM border pattern on the upper surface of the pad printing steel plate, the pad printing process further comprises:
the pad printing steel plate, the pad printing silica gel and the pad printing ink are subjected to full-automatic pad printing;
debugging the full-automatic pad printing machine table, and setting a preset printing program.
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| CN202210188830.6A CN114537005A (en) | 2022-02-25 | 2022-02-25 | Transfer printing process for curved-surface window glass |
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| CN202210188830.6A CN114537005A (en) | 2022-02-25 | 2022-02-25 | Transfer printing process for curved-surface window glass |
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