A wet-strength paper anti-deformation three-dimensional label and a manufacturing method thereof
By setting a transitional curved surface and low-temperature embossing on wet-strength paper, the problems of easy breakage and poor visual effect of 3D labels are solved, and deformation-resistant and aesthetically pleasing 3D labels are manufactured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIAXING HAONENG TECH CO LTD
- Filing Date
- 2026-02-27
- Publication Date
- 2026-05-29
AI Technical Summary
The existing 3D labels, after being embossed, are prone to damage at the edges of the text and images, and the visual effect is not obvious, affecting the aesthetics.
Using wet-strength paper as the base paper, and setting upward or downward transition curved surfaces at the edges of the three-dimensional graphics, the three-dimensional graphics are formed through low-temperature embossing treatment, combined with ink and varnish layers to form concave or convex three-dimensional graphics.
The tensile strength of the 3D label has been improved, the probability of breakage has been reduced, the visual effect has been enhanced, and the visual effect is more harmonious and beautiful.
Smart Images
Figure CN122116743A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of paper processing technology, and in particular to a three-dimensional label for wet-strength paper that resists deformation and its manufacturing method. Background Technology
[0002] 3D labels are a type of printed material with three-dimensional graphics (three-dimensional text or images), widely used in daily life and commerce. The embossed text on 3D labels on the market is vertical, and at the edges of the text, a scissor-like pressure is created; thin paper will tear when it passes through this embossing process. In terms of visual effect, the three-dimensional labels in the market are vertical images and text. When they are raised or recessed, the images and text will only bulge out. There is no transition at the edges of the images and text, so it is difficult to see any raised or recessed marks with the naked eye, and the three-dimensional effect is not obvious. Summary of the Invention
[0003] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a three-dimensional label with good wet strength and resistance to deformation of paper, which has a good three-dimensional effect and is not easily damaged; The second objective of this invention is to provide a method for manufacturing a three-dimensional label with wet-strength paper that resists deformation.
[0004] One of the objectives of this invention is achieved through the following technical solution: A three-dimensional label for resistance to deformation on wet-strength paper includes wet-strength paper and three-dimensional graphics disposed on the wet-strength paper. The wet-strength paper includes a base paper layer, an ink layer, and a varnish layer disposed sequentially from top to bottom. The three-dimensional graphics include concave three-dimensional graphics and convex three-dimensional graphics. The concave three-dimensional graphics include a concave surface, and the edge of the concave surface is provided with a downward transition curved surface. The convex three-dimensional graphics include a convex surface, and the edge of the convex surface is provided with an upward transition curved surface.
[0005] Preferably, the longitudinal dry tensile strength of the three-dimensional label is ≥50.0 N / 15 mm, and the transverse dry tensile strength of the three-dimensional label is ≥30.0 N / 15 mm.
[0006] Preferably, the base paper layer is a base paper containing a wet strength agent, wherein the wet strength agent is melamine resin or polyepoxychloropropane solvent.
[0007] Preferably, the three-dimensional label is a concave label with concave graphics or a convex label with convex graphics, wherein the three-dimensional graphics include three-dimensional text and three-dimensional images.
[0008] Preferably, the curvature of both the upward transition surface and the downward transition surface is constant at K, where K = 1 / (a + b), and a is the length of the three-dimensional graphic, and b is the width of the three-dimensional graphic.
[0009] The second objective of this invention is achieved by the following technical solution: A method for manufacturing a three-dimensional label with wet-strength paper resistance to deformation, comprising: Step A: According to the required three-dimensional graphics, the concave and convex plates are electro-engraved to create the corresponding graphic mold, and the edges of the graphic mold are processed to create a transition. Step B: Print the base paper layer according to the required three-dimensional graphics to form wet-strength paper, so that the required printed graphics are formed on the wet-strength paper; Step C: Use the electro-engraved relief plate to emboss the printed images at 30-60 degrees Celsius to form three-dimensional images on the wet strength paper; Step D: Die-cut the wet-strength paper with three-dimensional graphics to obtain a three-dimensional label.
[0010] Further, in step A, the relief plate includes a concave plate with a concave graphic mold and a convex plate with a convex graphic mold, wherein the relief plate is a metal plate, a plastic plate, or a clay plate.
[0011] Further, in step B, the printing includes printing an ink layer on the base paper layer and printing a varnish layer on the ink layer.
[0012] Furthermore, in step C, the wet strength paper is pressed by the embossing plate at 45 degrees Celsius to form three-dimensional graphics on the wet strength paper, and the edges of the three-dimensional graphics are pressed and transitioned by the curved part.
[0013] Furthermore, in step D, the wet-strength paper with three-dimensional graphics is die-cut evenly using a die-cutting machine, so that each three-dimensional label has one or more complete three-dimensional graphics.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The base paper of the three-dimensional label disclosed in this application is wet-strength paper. Wet-strength paper has strong tensile strength and is not easily damaged. The three-dimensional graphics on the wet-strength paper include concave graphics or convex graphics. The edges of the concave graphics are provided with downward transition curved surfaces, and the edges of the convex graphics are provided with upward transition curved surfaces, which can reduce the pressure at the edges and thus reduce the probability of damage.
[0015] At the same time, because the edges of the three-dimensional graphics are all treated with transition (curved surface) processing, there are no blind spots in the view and no sense of disharmony, resulting in a better visual effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the three-dimensional label of the present invention; Figure 2 This is a three-dimensional structural diagram of the concave graphic of the present invention; Figure 3 This is a three-dimensional structural diagram of the convex graphic of the present invention; Figure 4 This is a flowchart of the manufacturing method of the present invention; Figure 5 This is a three-dimensional structural diagram of the relief plate of the present invention; Figure 6 This is a three-dimensional structural diagram of the concave plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the convex plate of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the relief plate of the present invention after it has been cut.
[0017] In the diagram: 100, 3D label; 10, wet-strength paper; 11, 3D graphics; 111, concave graphics; 112, concave surface; 113, downward transition surface; 114, convex graphics; 115, convex surface; 116, upward transition surface; 12, base paper layer; 13, ink layer; 14, varnish layer; 20, relief printing plate; 21, concave plate; 211, concave graphic mold; 22, convex plate; 221, convex graphic mold; 23, graphic mold. Detailed Implementation
[0018] To better understand the specific technical solutions, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0020] like Figures 1-3 As shown, this application discloses a three-dimensional label 100 for wet-strength paper that resists deformation, comprising wet-strength paper 10 and three-dimensional graphics 11 disposed on the wet-strength paper 10. The wet-strength paper 10 includes a base paper layer 12, an ink layer 13, and a varnish layer 14 disposed sequentially from top to bottom. The three-dimensional graphic 11 includes a concave graphic 111 or a convex graphic 114. The concave graphic 111 includes a concave surface 112, and the edge of the concave surface 112 is provided with a downward transition surface 113. The convex graphic 112 includes a convex surface 115, and the edge of the convex surface 115 is provided with an upward transition surface 116.
[0021] In the above embodiments, the base paper of the three-dimensional label 100 disclosed in this application is wet-strength paper 10. The wet-strength paper 10 has strong tensile strength, is not easily damaged and is resistant to deformation. The three-dimensional graphic 11 includes concave graphic 111 or convex graphic 114. The edge of the concave graphic 111 is provided with a downward transition surface 113, and the edge of the convex graphic 114 is provided with an upward transition surface 116, which can reduce the pressure at the edge and thus reduce the probability of damage and deformation.
[0022] Meanwhile, because the edges of the stereoscopic graphics 11 are all treated with transition (curved surface) processing, there are no blind spots and no sense of disharmony, resulting in a better visual effect.
[0023] The 3D graphic 11 may include 3D text and 3D images. The wet-strength paper 10 may also include a label layer and a protective layer. Both sides of the wet-strength paper 10 are symmetrically spaced with long and short edges. The concave graphic 111 may also have an embossed pattern layer to enhance its aesthetics. The ink layer 13 and the varnish layer 14 can be used to color and enhance the appearance of the 3D label 100.
[0024] like Figures 3-6 As shown, in a preferred embodiment, the longitudinal dry tensile strength of the 3D label 100 is ≥50.0 N / 15 mm, and the transverse dry tensile strength of the 3D label is ≥30.0 N / 15 mm. Preferably, the base paper layer 12 is a base paper containing a wet strength agent, the wet strength agent being melamine resin or polyepoxychloropropane solvent, and the 3D label 100 includes a concave label with concave graphics 111 and a convex label 30 with convex graphics 114. Preferably, the curvature of both the upward transition surface 116 and the downward transition surface 113 is constant at K, K=1 / (a+b), where a is the length of the 3D graphics and b is the width of the 3D graphics.
[0025] In the above embodiments, the tensile strength of the 3D label 100 is ≥30.0N / 15mm, which can effectively prevent the 3D label from breaking; the melamine resin or polyepoxychloropropane solvent can achieve good wet strength effect for the wet-strength paper 10 in a slightly neutral solution, and it is formaldehyde-free and pollution-free. The concave label and the convex label can meet most advertising needs. The curvature of the upward transition surface 116 and the downward transition surface 113 is constant, which can give users a smooth feeling, reduce abruptness, improve visual effect, and the constant curvature is more conducive to production and processing. When the length of the 3D graphic a=10mm and the width of the 3D graphic b=8mm, the curvature K=1 / (10+8)=0.055.
[0026] like Figures 4-8 As shown, the present invention also discloses a method for manufacturing the wet-strength paper-resistant three-dimensional label 100, which includes: Step A: Electro-engraving the corresponding graphic mold 23 from the relief plate 20 according to the required three-dimensional graphic, and performing transition processing on the edges of the graphic mold 23; In step A, the relief plate 20 includes a concave plate 21 with a concave graphic mold 211 and a convex plate with a convex graphic mold 221, wherein the relief plate is a metal plate, a plastic plate, or a clay plate. The required three-dimensional graphic is the final required three-dimensional graphic 11, and the graphic mold 23 includes a concave graphic mold 211 and a convex graphic mold 221. The relief plate 20 can be electro-engraved using an electro-engraving machine.
[0027] Step B: Print the base paper layer 12 according to the required three-dimensional graphics to form wet strength paper 10, so that the required printed graphics are formed on the wet strength paper 10.
[0028] In step B, the printing includes printing ink 13 on the base paper layer 12 and printing a varnish layer 14 on the ink layer 13. The printed image includes the ink layer 13 and the varnish layer 14. The areas to be embossed on the wet-strength paper 10 are positioned by pre-printing the image to be embossed on the wet-strength paper 10 (the area to be embossed). This allows for direct embossing at the image areas during subsequent embossing.
[0029] Step C: Use the electro-engraved relief plate 20 to emboss the printed images at 30-60 degrees Celsius to form three-dimensional images 11 on the wet strength paper 10; In step C, the wet-strength paper is pressed by the relief plate 20 at 45 degrees Celsius, forming a three-dimensional graphic 11 on the wet-strength paper 10. The edges of the three-dimensional graphic are pressed and transitioned using curved components. For concave graphics 111, the edges are pressed from top to bottom, making the downward transition surface 22 smoother and more aesthetically pleasing; similarly, for convex graphics 114, the edges are pressed from bottom to top, making the upward transition surface 116 smoother and more aesthetically pleasing. Furthermore, the ink layer 13 and the varnish layer 14 can create an attractive embossed pattern layer on the three-dimensional graphic 11.
[0030] Because the edges of the graphic mold 23 undergo a gradual transition from light to dark, the pressure on the edges of the three-dimensional graphic 11 is not significant during the embossing process, and the wet-strength paper 10 will not be crushed. After the wet-strength paper 10 is embossed, the three-dimensional graphic 11 exhibits a gradual transition from low to high, and from the periphery to the center, which is very noticeable to the naked eye and provides a good visual effect. Since the wet-strength paper 10 is embossed at a low temperature of 45 degrees Celsius, it has a shaping effect, and subsequent die-cutting of small labels will not flatten the three-dimensional graphic 11. Even if a needle is used to press on the embossed areas (of the three-dimensional graphic 11), the embossed areas will immediately return to their original position after the needle is removed, demonstrating excellent stability.
[0031] For example, by using an intaglio die 21 with an "N" shape to press (depress) the printed areas of the wet strength paper 10, a pattern can be formed on the wet strength paper 10. Figure 3 The “N” shaped convex graphic (3D text) shown is the same as the reverse.
[0032] Step D: The wet-strength paper 10 with the three-dimensional graphic 11 is die-cut in the subsequent process to obtain the three-dimensional label 100.
[0033] In step D, the wet-strength paper 10 with three-dimensional graphics 11 is die-cut evenly (vertically) by a die-cutting machine, so that each three-dimensional label 100 has one or more complete three-dimensional graphics 11.
[0034] The three-dimensional graphics on the three-dimensional label 100 can be trademarks, advertising slogans, or even illuminated letters, which is very beneficial for commercial applications.
[0035] In summary, this application forms a transition surface by performing a transition process at the edge of the graphic mold 23 of the raised and recessed plate 20, making the manufactured three-dimensional label 100 less prone to damage, resistant to deformation, and more aesthetically pleasing and stable.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A three-dimensional label for wet-strength paper resistant to deformation, comprising wet-strength paper and three-dimensional graphics disposed on the wet-strength paper, wherein the wet-strength paper comprises a base paper layer, an ink layer, and a varnish layer disposed sequentially from top to bottom, characterized in that: The three-dimensional graphics include concave three-dimensional graphics and convex three-dimensional graphics. The concave three-dimensional graphics include a concave surface, and the edge of the concave surface is provided with a downward transition surface. The convex three-dimensional graphics include a convex surface, and the edge of the convex surface is provided with an upward transition surface.
2. The three-dimensional label according to claim 1, characterized in that: The longitudinal dry tensile strength of the three-dimensional label is ≥50.0N / 15mm, and the transverse dry tensile strength of the three-dimensional label is ≥30.0N / 15mm.
3. The three-dimensional label according to claim 1, characterized in that: The base paper layer is a base paper containing a wet strength agent, which is melamine resin or polyepoxychloropropane solvent.
4. The three-dimensional label according to claim 1, characterized in that: The three-dimensional label is a concave label with concave graphics or a convex label with convex graphics, wherein the three-dimensional graphics include three-dimensional text and three-dimensional images.
5. The three-dimensional label according to claim 1, characterized in that: The curvature of both the upward transition surface and the downward transition surface is constant at K, where K = 1 / (a + b), and a is the length of the 3D graphic, and b is the width of the 3D graphic.
6. A method for manufacturing a three-dimensional label with wet-strength paper resistance to deformation as described in any one of claims 1-5, characterized in that, include: Step A: According to the required three-dimensional graphics, the concave and convex plates are electro-engraved to create the corresponding graphic mold, and the edges of the graphic mold are processed to create a transition. Step B: Print the base paper layer according to the required three-dimensional graphics to form wet-strength paper, so that the required printed graphics are formed on the wet-strength paper; Step C: Use the electro-engraved relief plate to emboss the printed images at 30-60 degrees Celsius to form three-dimensional images on the wet strength paper; Step D: Die-cut the wet-strength paper with three-dimensional graphics to obtain a three-dimensional label.
7. The manufacturing method according to claim 6, characterized in that, In step A, the relief plate includes a concave plate with a concave graphic mold and a convex plate with a convex graphic mold, wherein the relief plate is a metal plate, a plastic plate or a clay plate.
8. The manufacturing method according to claim 6, characterized in that, In step B, the printing includes printing an ink layer on the base paper layer and printing a varnish layer on the ink layer.
9. The manufacturing method according to claim 6, characterized in that, In step C, the wet strength paper is pressed by the embossing plate at 45 degrees Celsius to form a three-dimensional graphic on the wet strength paper, and the edges of the three-dimensional graphic are pressed and transitioned by a curved component.
10. The manufacturing method according to claim 6, characterized in that, In step D, the wet-strength paper with three-dimensional graphics is die-cut evenly using a die-cutting machine, so that each three-dimensional label has one or more complete three-dimensional graphics.