UV printing facial tissue embossing method and embossing die

Abstract

The invention discloses a UV (ultraviolet) printing facial tissue embossing method and an embossing mould, and the embossing method comprises the following steps: manufacturing an imitated male mould trace paper card according to an embossing trace, and pasting the imitated male mould trace paper card on an original embossing male mould; cutting a film and pasting the film on the original embossing female die, wherein the film needs to completely cover the embossing range of the female die; and performing embossing on the surface paper by using the embossing male die adhered with the profiling paper card and the embossing female die adhered with the film. Due to the fact that the profiling paper card is attached to the embossing male die and the film is attached to the embossing female die, the profiling paper card provides a flat extrusion face during embossing, and the periphery of the embossing position is free of bubbles and flat; the film is completely attached to the hit convex surface paper to play a buffering role, so that the hit convex surface paper can be prevented from cracking and being damaged; the method can replace an existing film covering and embossing process, the surface paper film covering procedure is omitted, the surface paper rejection rate is reduced, film covering manpower and film covering materials are saved, and the fixed asset investment of a film covering machine is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of printing and packaging, and in particular to a UV printing surface paper embossing method and an embossing mold. Background Art

[0002] Embossing is a special process in the surface finishing of printed products. It uses an embossing mold to mechanically apply pressure that exceeds the elastic limit of the printed product substrate to perform artistic processing on the surface of the printed product. The embossing process can emphasize the performance of the local design and make the printed product more soulful. For different embossing pattern effects, corresponding embossing molds need to be made, and embossing molds can be used for a long time.

[0003] UV printing is a printing process that uses ultraviolet light to dry and cure ink. It requires the ink containing photosensitizer to be matched with a UV curing lamp. The application of UV printing is one of the most important aspects of the printing industry. When embossing UV printed paper, a paper card is usually attached to the back of the UV printed paper first, and then the embossing is performed in the middle of the paper card. The embossing depth must meet the standard, and the embossed surface must be flat without cracks, damage, or bubbles. If the UV printed paper with a paper card attached is embossed directly, 100% of the embossed surface will crack, bubbles, and other undesirable conditions will occur, such as Figure 1 shown.

[0004] In order to prevent defects in embossing of UV printed face paper, the existing method is to use an automatic laminating machine to laminate the face paper first, and then place it on a turntable embossing machine for embossing after laminating, which is referred to as the laminating and embossing process. Since the existing technical solution adds a face paper laminating process, the face paper scrap rate is increased. In addition, the face paper laminating process not only wastes human resources to operate the laminating machine, but also wastes laminating materials and increases the fixed asset investment of the laminating machine. Summary of the invention

[0005] The purpose of the present invention is to provide a UV printing face paper embossing method and an embossing mold, which can replace the laminating embossing process, cancel the laminating process, reduce the scrap rate, save laminating manpower and laminating materials, and reduce the fixed asset investment of the laminating machine.

[0006] The present invention is achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a method for embossing UV printed surface paper, comprising the following steps:

[0008] Make a paper card imitating the public mold trace according to the embossed trace, and stick the imitation paper card on the original embossed public mold;

[0009] Cut the film and paste it on the original embossing master mold, and the size of the film must completely cover the embossing range of the master mold;

[0010] The facing paper is embossed using a male embossing mold with a contour paper card and a female embossing mold with a film.

[0011] In the above technical scheme, since a contour paper card is attached to the embossing male mold and a film film is attached to the embossing female mold, when embossing the facing paper, the contour paper card provides a flat extrusion surface, so that there are no bubbles around the embossed position and it is flat, and the film film completely fits the embossed surface paper to play a buffering role, which can avoid the embossed paper from cracking and damaging; this method can realize direct embossing of UV printed surface paper without any defective products, thereby replacing the current laminating embossing process, eliminating the surface paper laminating process, reducing the scrap rate of surface paper, saving laminating manpower and laminating materials, and reducing the fixed asset investment of laminating machines.

[0012] As a preferred embodiment of the present invention, the profiling paper card is obtained by making a cutting die according to the embossed trace, installing the cutting die on a beer machine to cut the card paper, and obtaining a paper card imitating the public mold trace.

[0013] As a preferred embodiment of the present invention, the thickness of the cardboard is 0.13mm-0.17mm. The cardboard with this thickness range is used to make the profiling paper card, which can avoid being too thick or too thin and affecting the use effect. When the cardboard used is too thick, the distance between the profiling paper card surface and the embossing surface of the embossing mold will be reduced, which may affect the embossing depth effect of the face paper. When the cardboard used is too thin, the distance between the profiling paper card surface and the embossing surface of the embossing mold will be increased, which may affect the squeezing force around the embossing position of the face paper.

[0014] As a preferred solution of the present invention, the contour paper card is made of yellow core white cardboard or white core white cardboard.

[0015] As a preferred solution of the present invention, the cardboard has a gram weight of 250 g.

[0016] As a preferred solution of the present invention, the profiling paper card and film film are attached to the original embossing male mold and embossing female mold by double-sided adhesive tape. By using double-sided adhesive tape for attachment and fixation, the attachment firmness can be met, and at the same time, the profiling paper card and film film can be conveniently removed for replacement; at the same time, the double-sided adhesive tape is easy to clean, and the colloid residue on the attachment surface of the mold can be avoided, thereby affecting the attachment and fixation accuracy of the new profiling paper card and film film.

[0017] As a preferred embodiment of the present invention, the thickness of the film is 0.11mm-0.13mm. The use of film within this thickness range can avoid being too thick or too thin and affecting the use effect. If the film is too thick, it may affect the molding effect of the edge of the embossed area of ​​the face paper. If the film is too thin, the buffering effect may be insufficient when the face paper is embossed, thereby affecting the use effect.

[0018] As a preferred embodiment of the present invention, the film film has a downward curvature when pasted. By making the film film have a downward curvature when pasted, when the facial paper is embossed, during the downward movement of the embossing master mold, the arc portion in the center of the film film will first contact the central area of ​​the embossed position of the facial paper, and as the embossing master mold continues to move downward, the contact area between the film film and the embossed position of the facial paper gradually expands from the center to the edge, which is conducive to discharging the gas between the film film and the facial paper, so that it is completely attached to the facial paper, thereby avoiding affecting the use effect, and the film film is more durable.

[0019] In a second aspect, the present invention provides a UV printing surface paper embossing mold, comprising an embossing male mold and an embossing female mold, the embossing male mold is pasted with a contour paper card, the contour paper card is made according to the embossing shape of the male mold, and the embossing female mold is pasted with a film, the size of the film completely covers the embossing range of the female mold.

[0020] The embossing mold of the present invention has a profiling paper card attached to the embossing male mold and a film attached to the embossing female mold. During embossing, the profiling paper card provides a flat extrusion surface, so that there are no bubbles around the embossing position and it is flat. The film completely adheres to the embossed paper and plays a buffering role, which can prevent the embossed paper from cracking and damaging.

[0021] As a preferred solution of the present invention, the male embossing mold is a resin mold, and the female embossing mold is a copper mold. The male embossing mold is a resin mold, which can reduce costs, and the female embossing mold is a copper mold, which can improve its durability and service life, thereby meeting the process mode of one female embossing mold corresponding to multiple male embossing molds.

[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0023] In the present invention, a profiling paper card is attached to the embossing male mold, and a film film is attached to the embossing female mold. When embossing the facing paper, the profiling paper card provides a flat extrusion surface, so that there are no bubbles around the embossed position and it is flat. The film film completely fits the embossed surface paper to play a buffering role, which can avoid the embossed paper from cracking and breaking. The method can realize direct embossing of UV printed surface paper without defective products, thereby replacing the current laminating embossing process, eliminating the surface paper laminating process, reducing the scrap rate of surface paper, saving laminating manpower and laminating materials, and reducing the fixed asset investment of laminating machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0025] Figure 1 This is the effect of embossing bubbles directly on the surface paper;

[0026] Figure 2 This is a schematic diagram of the embossing method of UV printing surface paper in the present invention;

[0027] Figure 3 This is a schematic diagram of the embossing mold for UV printed surface paper in the present invention;

[0028] Figure 4 It is a schematic diagram of another viewing angle of the UV printing surface paper embossing mold in the present invention;

[0029] Figure 5 This is a diagram showing the effect of embossing the facing paper using the method of the present invention.

[0030] Marks and corresponding parts names in the attached drawings:

[0031] 1- embossing male mold, 2- contour paper card, 3- embossing female mold, 4- film. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0038] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0039] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0040] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] Embossing is a special process in the surface finishing of printed products. It uses an embossing mold to mechanically apply pressure that exceeds the elastic limit of the printed product substrate to perform artistic processing on the surface of the printed product. The embossing process can emphasize the performance of the local design and make the printed product more soulful. For different embossing pattern effects, corresponding embossing molds need to be made, and embossing molds can be used for a long time.

[0042] UV printing is a printing process that uses ultraviolet light to dry and cure ink. It requires the ink containing photosensitizer to be matched with UV curing lamp. The application of UV printing is one of the most important contents in the printing industry. When embossing UV printed paper, a paper card is usually attached to the back of the UV printed paper first, and then the embossing is performed in the middle of the paper card. The embossing depth must meet the standard, and the embossed surface must be flat without cracks, damage, or bubbles. If the UV printed paper with a paper card attached is embossed directly, 100% of the embossed surface will crack, bubble, and other undesirable conditions will occur.

[0043] In order to prevent cracking, bubbles and other defects of UV printed face paper during embossing, the existing method is to use an automatic laminating machine to laminate the face paper first, usually by coating a layer of PP film on the surface of the face paper, and then placing it on a turntable embossing machine for embossing, which is referred to as the laminating and embossing process. Due to the effect of laminating, the laminating can protect the face paper during embossing, thereby preventing the face paper from cracking, breaking and other defects. Since UV printed face paper itself does not need laminating, it is usually necessary to manually tear off the laminating film after the embossing process.

[0044] Since the existing technical solution adds a facial paper laminating process, the facial paper scrap rate is increased. In addition, the facial paper laminating process not only wastes human resources to operate the laminating machine, but also wastes laminating materials and increases the fixed asset investment of the laminating machine. In view of this, the applicant has conducted in-depth research on the embossing process and invented a new embossing method based on the actual situation on site. This method embosses the UV printed facial paper by attaching a contour paper card to the original embossing male mold and a film to the embossing female mold. This method can replace the existing laminating embossing process, cancel the laminating process, reduce the scrap rate, save laminating manpower and laminating materials, and reduce the fixed asset investment of the laminating machine.

[0045] Example 1

[0046] Please refer to Figures 2 to 5 ,in Figure 2 This is a schematic diagram of the embossing method of UV printing surface paper in this application; Figure 3 This is a schematic diagram of the UV printing paper embossing mold in this application; Figure 4 This is a schematic diagram of another viewing angle of the UV printing paper embossing mold in this application; Figure 5This is a diagram showing the effect of embossing the facing paper using the method of the present application.

[0047] A UV printing paper embossing method provided in an embodiment of the present application comprises the following steps:

[0048] Make a paper card imitating the public mold trace according to the embossed trace, and stick the imitation paper card 2 on the original embossed public mold 1;

[0049] Cut the film 4 and paste it on the original embossing master mold 3, and the size of the film 4 must completely cover the embossing range of the master mold;

[0050] The facing paper is embossed using a male embossing mold 1 with a contour paper card 2 and a female embossing mold 3 with a film 4.

[0051] In the above technical scheme, since the embossing male mold 1 is attached with a contour paper card 2 and the embossing female mold 3 is attached with a film film 4, when embossing the facing paper, the contour paper card 2 provides a flat extrusion surface, so that there are no bubbles around the embossed position and it is flat, and the film film 4 completely fits the embossed surface paper to play a buffering role, which can avoid the embossed paper from cracking and damaging; this method can replace the current laminating embossing process, cancel the surface paper laminating process, reduce the scrap rate of surface paper, save laminating manpower and laminating materials, and reduce the fixed asset investment of laminating machines.

[0052] It should be noted that during embossing, multiple embossing male dies 1 can be installed on the embossing machine turntable to form multiple rotatable embossing stations, and the embossing male dies 1 are the lower dies. The embossing female dies 3 are installed on the pressure head of the embossing machine, and the embossing female dies 3 are the upper dies. After the embossing female dies 3 are pressed down to complete the embossing of a sheet of tissue paper, the embossing machine drives the embossing female dies 3 to rise, and at the same time, the embossing machine turntable rotates to rotate another embossing male dies 1 to the bottom of the embossing female dies 3, and then the embossing female dies 3 are pressed down again to emboss.

[0053] According to some embodiments of the present application, the shaped paper card 2 is obtained by making a knife die according to the embossed trace, installing the knife die on a manual die cutting machine to die cut the card paper, and obtaining a paper card imitating the male mold trace. Die cutting is also called die cutting. As the name implies, it is to make a knife die plate according to the knife die line of the embossed trace, and use a die cutting machine to die the card paper into the required shape.

[0054] In this embodiment, a square embossing range is taken as an example, that is, a square boss is provided on the embossing male mold 1, and a matching square groove is provided on the embossing female mold 3. The square boss and the square groove are respectively located on the mating surfaces of the embossing male mold 1 and the embossing female mold 3. When the embossing operation is performed, the face paper is placed between the embossing male mold 1 and the embossing female mold 3, and the embossing female mold 3 moves toward the embossing male mold 1, so that the square boss enters the square groove, thereby applying pressure to the face paper to form an embossing effect. It should be noted that the embossing method is also applicable to embossing male and female molds of different shapes.

[0055] In this embodiment, a paper card imitating the public mold trace is made according to the embossing trace, specifically, the edge of the square boss (embossing range) on the embossing public mold 1 is used as the embossing trace, and holes matching the embossing trace are formed on the cardboard to form a profiling paper card 2. During installation, the holes on the profiling paper card 2 are placed on the square boss of the embossing public mold 1, and the profiling paper card 2 is pasted and fixed on the mating surface of the embossing public mold 1. When the face paper is embossed, the profiling paper card 2 contacts the lower side of the face paper, and the profiling paper card 2 provides a flat extrusion surface, so that there are no bubbles around the embossing position of the face paper, and it is flat.

[0056] In this embodiment, when cutting the film 4, the size of the film 4 needs to completely cover the embossing range of the master mold, that is, the size of the film 4 is larger than the size of the square groove on the embossing master mold 3. After the film 4 is pasted and fixed on the embossing master mold 3, the film 4 completely covers the square groove on the embossing master mold 3. When the face paper is embossed, the film 4 contacts the upper side of the face paper, and the film 4 completely fits the embossed face paper, playing a buffering role, thereby preventing the embossed part of the paper from cracking and breaking.

[0057] According to some embodiments of the present application, the thickness of the cardboard is 0.13mm-0.17mm. Using cardboard in this thickness range to make the contour paper card 2 can avoid being too thick or too thin to affect the use effect. Exemplarily, the thickness of the cardboard can be 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, etc.

[0058] When the cardboard is too thick, the distance between the surface of the profiling paper card 2 and the top surface of the square boss of the embossing mold 1 will be reduced, which may affect the embossing depth effect of the face paper. When the cardboard is too thin, the distance between the surface of the profiling paper card 2 and the top surface of the square boss of the embossing mold 1 will be increased, which may affect the squeezing force around the embossing position of the face paper.

[0059] According to some embodiments of the present application, the contoured paper card 2 is made of yellow core white cardboard or white core white cardboard. The inner core of the yellow core white cardboard is yellow, and the fiber direction is consistent, and special treatment is used in the production process, so that the cardboard has the characteristics of strong stability, high raw hardness, and good anti-folding performance. Since the white core white cardboard is white inside and outside, it can show a higher color brightness and saturation effect, which is one of the important reasons why designers choose this cardboard when making color pages, picture albums and other magazine products.

[0060] It should be noted that the contour paper card 2 can also be made by cutting other cardboards that meet the use requirements, and the present application is not limited to the two types of white cardboards mentioned above.

[0061] According to some embodiments of the present application, the grammage of the cardboard is 250g. The grammage of the cardboard refers to the weight of the paper per unit area, usually expressed in grams per square meter. The grammage and its uniformity directly affect the physical, mechanical, optical and printing properties of the paper. Common grammages of cardboard are 250, 300, 350, 400 (g / m 2 ). In this embodiment, yellow core white cardboard with a gram weight of 250g is preferably used.

[0062] According to some embodiments of the present application, the profiling paper card 2 and the film film 4 are pasted on the original embossing male mold 1 and the embossing female mold 3 by double-sided adhesive tape. By using double-sided adhesive tape for pasting and fixing, the pasting firmness can be met, and at the same time, the profiling paper card 2 and the film film 4 can be conveniently removed for replacement. Of course, other feasible methods can also be used to paste and fix the profiling paper card 2 and the film film 4.

[0063] It should be noted that after embossing a certain number of facial papers, or when the profiling paper card 2 and the film film 4 have defects, they need to be replaced in time. Since the profiling paper card 2 and the film film 4 are both adhered with double-sided tape, it is easy to remove the profiling paper card 2 and the film film 4 from the embossing male mold 1 and the embossing female mold 3. At the same time, the double-sided tape is easy to clean, for example, by spraying alcohol on the adhesive surface to avoid residual colloid on the adhesive surface of the mold, thereby affecting the adhesive fixation accuracy of the new profiling paper card 2 and the film film 4, and further affecting the use effect.

[0064] According to some embodiments of the present application, the thickness of the film film 4 is 0.11 mm-0.13 mm. The use of the film film 4 in this thickness range can avoid being too thick or too thin to affect the use effect. For example, the thickness of the film film 4 can be 0.11 mm, 0.12 mm, 0.13 mm, etc.

[0065] The material of the film film 4 is PET. When embossing, the film film 4 will be deformed, and the portion of the film film 4 corresponding to the embossed area of ​​the face paper will enter the square groove on the embossing master mold 3. If the film film 4 is too thick, it may affect the molding effect of the edge of the embossed area of ​​the face paper. If the film film 4 is too thin, the buffering effect may be insufficient when the face paper is embossed, thereby affecting the use effect.

[0066] According to some embodiments of the present application, the film film 4 has a downward curvature when pasted. By making the film film 4 have a curvature when pasted, it is helpful to discharge the air between the film film 4 and the facial paper when embossing, so that the film film 4 is completely attached to the facial paper, thereby avoiding affecting the use effect, and the film film 4 is more durable.

[0067] Specifically, when the film film 4 is pasted, the middle part thereof bends downward, that is, bends toward the side away from the square groove on the embossing master mold 3. The magnitude of the bending can be defined by the angles formed by the two ends of the film film 4 along the bending direction and the mating surface of the embossing master mold 3, and specifically, the angle α formed by the two ends of the film film 4 along the bending direction and the mating surface of the embossing master mold 3 is 15-20°.

[0068] After the film film 4 is set in the above-mentioned bending state, when the facial paper is embossed, the arc-shaped part in the center of the film film 4 will first contact the central area of ​​the embossing position of the facial paper during the downward movement of the embossing master mold 3. As the embossing master mold 3 continues to move downward, the contact area between the film film 4 and the embossing position of the facial paper gradually expands from the center to the edge, which is conducive to discharging the gas between the film film 4 and the facial paper, so that it is completely in contact with the facial paper, thereby avoiding affecting the use effect.

[0069] Example 2

[0070] Please refer to Figures 2 to 5 A UV printing surface paper embossing mold provided in an embodiment of the present application includes an embossing male mold 1 and an embossing female mold 3. The embossing male mold 1 is pasted with a contour paper card 2, and the contour paper card 2 is made according to the embossing shape of the male mold. The embossing female mold 3 is pasted with a film 4, and the size of the film 4 completely covers the embossing range of the female mold.

[0071] In the embossing mold of this embodiment, since the embossing male mold 1 is attached with a contour paper card 2, and the embossing female mold 3 is attached with a film 4, the contour paper card 2 provides a flat extrusion surface during embossing, so that there are no bubbles around the embossed position and it is flat. The film 4 completely fits the embossed paper and plays a buffering role, which can prevent the embossed paper from cracking and damaging.

[0072] According to some embodiments of the present application, the embossing male mold 1 is a resin mold, and the embossing female mold 3 is a copper mold. Since multiple embossing male molds 1 are installed on the turntable of the embossing machine during embossing, multiple rotatable embossing stations are formed, and the embossing male mold 1 is the lower mold. The embossing female mold 3 is installed on the pressure head of the embossing machine, and the embossing female mold 3 is the upper mold. After the embossing female mold 3 is pressed down to complete the embossing of a piece of tissue paper, the embossing machine drives the embossing female mold 3 to rise, and at the same time, the turntable of the embossing machine rotates to make another embossing male mold 1 rotate to the bottom of the embossing female mold 3, and then the embossing female mold 3 is pressed down again for embossing. The embossing male mold 1 adopts a resin mold to reduce costs, and the embossing female mold 3 adopts a copper mold to improve its durability and increase its service life, thereby satisfying the process mode of one embossing female mold 3 corresponding to multiple embossing male molds 1.

[0073] According to some embodiments of the present application, the thickness of the cardboard is 0.13 mm-0.17 mm. Using cardboard within this thickness range to make the contour paper card 2 can avoid the use effect being affected by being too thick or too thin.

[0074] According to some embodiments of the present application, the contour paper card 2 is made of yellow core white cardboard or white core white cardboard. Yellow core white cardboard is a cardboard with a yellow inner core and a white outer layer, while white core white cardboard is a cardboard with white inner and outer layers. Therefore, the color of the two is the most obvious difference.

[0075] According to some embodiments of the present application, the card paper has a gram weight of 250 g. For example, the Chenming Lipin yellow core white card paper with a gram weight of 250 g can be directly used to make the contour paper card 2.

[0076] According to some embodiments of the present application, the profiling paper card 2 and the film film 4 are attached to the original embossing male mold 1 and the embossing female mold 3 by double-sided tape. By using double-sided tape for pasting and fixing, the pasting firmness can be met, and at the same time, the profiling paper card 2 and the film film 4 can be conveniently removed for replacement.

[0077] According to some embodiments of the present application, the thickness of the film 4 is 0.11 mm-0.13 mm. Using the film 4 in this thickness range can avoid the film being too thick or too thin to affect the use effect.

[0078] According to some embodiments of the present application, the film film 4 has a downward curvature when pasted. By making the film film 4 have a curvature when pasted, it is beneficial to discharge the gas between the film film 4 and the facial paper during embossing, so that the film film 4 is completely attached to the facial paper, thereby avoiding affecting the use effect, and the film film 4 is more durable. Preferably, the angle α formed by the two ends of the film film 4 along the bending direction and the mating surface of the embossing mother mold 3 is 15-20°.

[0079] The embossing mold in the embodiment of the present application has a contour paper card 2 attached to the embossing male mold 1 and a film film 4 attached to the embossing female mold 3. When embossing the facing paper, the contour paper card 2 provides a flat extrusion surface, so that there are no bubbles around the embossed position and it is flat. The film film 4 completely fits the embossed surface paper to play a buffering role, which can avoid the embossed paper from cracking and damaging. This method can directly emboss UV printed surface paper without any defects, thereby replacing the current laminating embossing process, eliminating the surface paper laminating process, reducing the scrap rate of surface paper, saving laminating manpower and laminating materials, and reducing the fixed asset investment of laminating machines.

[0080] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for embossing UV printed surface paper, characterized in that: The following steps are involved: Make a paper card imitating the public mold trace according to the embossed trace, and stick the imitation paper card on the original embossed public mold; Cut the film and paste it on the original embossing master mold, and the size of the film must completely cover the embossing range of the master mold; The facing paper is embossed using a male embossing mold with a contour paper card and a female embossing mold with a film.

2. The UV printing paper embossing method according to claim 1, characterized in that: The imitation paper card is prepared by making a cutting die according to the embossed trace, installing the cutting die on a beer machine to beer-cut the card paper, and obtaining a paper card imitating the public mold trace.

3. The UV printing paper embossing method according to claim 2, characterized in that: The thickness of the cardboard is 0.13mm-0.17mm.

4. The UV printing paper embossing method according to claim 3, characterized in that: The contour paper card is made of yellow core white card paper or white core white card paper.

5. The UV printing paper embossing method according to claim 4, characterized in that: The cardboard has a gram weight of 250 g.

6. The method for embossing UV printed surface paper according to any one of claims 1 to 5, characterized in that: The contour paper card and the film are adhered to the original embossing male mold and the embossing female mold by double-sided adhesive tape.

7. The method for embossing UV printed surface paper according to any one of claims 1 to 5, characterized in that: The thickness of the film is 0.11mm-0.13mm.

8. The method for embossing UV printed surface paper according to any one of claims 1 to 5, characterized in that: The film has a downward curvature when pasted.

9. A UV printing paper embossing mold, comprising an embossing male mold and an embossing female mold, characterized in that: The male embossing mold is pasted with a contour paper card, which is made according to the embossing trace of the male mold. The female embossing mold is pasted with a film, and the size of the film completely covers the embossing range of the female mold.

10. The UV printing paper embossing mold according to claim 9, characterized in that: The male embossing mold is a resin mold, and the female embossing mold is a copper mold.

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