TWI636898B - Printing method with 3D positioning of relief surface - Google Patents

Abstract

A printing method having a 3D positioning of a embossed surface, first preparing a rolling wheel set, a color wheel set and a paperboard, wherein a first rolling wheel of the rolling wheel set has a plurality of convex portions and a second roller The rolling wheel has a plurality of recessed portions, the color wheel set has a rotating wheel, a coloring material bucket, a coloring wheel and a bottom plate, and the paperboard is passed between the first and second rolling wheels, and the paperboard is a first surface embossing a plurality of ridges, and forming a plurality of indentations on a second surface to form a cardboard, and passing the slab between the runner of the color wheel set and the base After the color wheel rotates and adheres to the color material contained in the color tank, it is transferred to the wheel, and the wheel transfers the adhered color material to the convexity of the blank. On the grain, a embossed surface can be formed to form a plate-shaped finished product of 3D color separation.

Description

Printing method with 3D positioning of relief surface

The present invention relates to a printing method for a paper plate, and more particularly to a printing method having a 3D positioning of a relief surface.

Generally, a method for manufacturing a cardboard having a plurality of embossments on the surface, if no coloring is required, directly rolling a paperboard having a primary color by using a pair of rolling wheels respectively provided with convex and concave lines, and can be rolled on the cardboard The opposite sides are respectively formed with ridges and indentations.

If two colors of embossing effect are required, after the other color is first printed on the paperboard having a ground color, the paper board is rolled by a roller having a convex and concave road, and The cardboard is formed with convex and concave lines on opposite sides. When the texture is pressed, the convex and concave surfaces of the surface of the rolling wheel must be aligned with the pre-printed blocks on the paperboard, but the convex and concave surfaces of the surface of the rolling wheels are aligned with the It is not easy to pre-print the color blocks on the cardboard. Not only is it often misaligned, the defect rate is high, and it will affect the production capacity.

For example, printing on the surface of packaging materials (such as paper bags), such as crocodile skin, snake skin, lizard skin, etc., is a very fashionable and environmentally friendly (not killing wild animals) natural beauty. Reproduction, the printing of such lines is to achieve the true and realistic, to achieve the three-dimensional touch effect of bumps, and will print the packaging material (as shown in Figure 1, forming a majority of the relief 101 on a plane 1), And then undergoing a coining process to form a printed layer 2 on the surface of the ridges 101. For example, the printed layer 2 on the surface of the embossing 101 is darker than the color of the plane 1, that is, Can produce immersive effects. However, since the packaging material (such as paper) may undergo three-dimensional stretching during the embossing process, the printing layer 2 which should originally correspond to the embossments 101, that is, the embossments 101 and the printing layers, 2 Misplaced each other, unable to obtain accurate positioning, making the immersive effect of such printed products greatly reduced.

Accordingly, it is an object of the present invention to provide a printing method having a embossed surface 3D positioning that can be accurately colored and that can increase productivity.

Therefore, the printing method of the present invention has a 3D positioning of the relief surface, comprising the following steps: (A) preparing a rolling wheel set, a color wheel set and a paper board, the rolling wheel set having a first rolling wheel and a second rolling wheel having a first circumferential surface and a plurality of convex portions protruding from the first circumferential surface, the second rolling wheel having a second circumferential surface and a plurality of concave portions In the recessed portion of the second circumferential surface, when the first rolling wheel and the second rolling wheel are relatively rotated, the convex portions and the concave portions are fitted to each other, and the color wheel group has a rotating wheel a color tank disposed on one side of the wheel, a color wheel that is affixed to the wheel and partially immersed in the color tank, and a bottom set opposite the wheel, the color The drum is pre-formed with a coloring material, the paperboard having a first surface and a second surface opposite the first surface. (B) passing the paperboard between the first rolling wheel of the rolling wheel set and the second rolling wheel, after the first rolling wheel and the second rolling wheel are relatively rotated, the paperboard is The first surface embosses a plurality of ridges and forms a plurality of indentations at the second surface corresponding to the embossed locations, the cardboard forming a blank. (C) passing the blank between the runner of the color wheel set and the base, and causing the first surface and the ridges to oppose the wheel to abut the second surface against the bottom And when the color wheel rotates and adheres to the color material contained in the color tank, it is transferred to a rotating wheel that rotates relative to the color wheel, and the wheel rotates relative to the bottom stage. The adhered colorant is transferred to the embossments of the blank. (D) A plate-like finished product having a embossed surface to form a 3D color separation.

The effect of the invention is that the embossing and the concave embossing are first printed on the paperboard by using the rolling wheel set, and then the coloring material is transferred to the embossed surface by using the color wheel group. The plate-shaped finished product has a embossed surface and forms a 3D color separation effect, and the color material layer printed on the embossed lines can be aligned and the symmetry is good.

Referring to Figures 2 through 6, an embodiment of the printing method of the present invention having a 3D positioning of the relief surface comprises the following steps:

Step 1: Prepare a roll of the wheel set 10, a color wheel set 20 and a cardboard 1. As shown in FIG. 2 and FIG. 3, the rolling wheel set 10 has a first rolling wheel 11 and a second rolling wheel 12, and the first rolling wheel 11 has a first circumferential surface 111 and a plurality of convex portions. The second rolling wheel 12 has a second circumferential surface 121 and a plurality of recesses 122 recessed in the second circumferential surface 121. The first rolling wheel 11 is formed on the convex portion 112 of the first circumferential surface 111. When the second rolling wheel 12 rotates relative to each other, the convex portions 112 and the concave portions 122 are fitted to each other. As shown in FIG. 4, the color wheel set 20 has a rotating wheel 21, a color tank 22 disposed on one side of the rotating wheel 21, and a surface of the rotating wheel 21 adhered to each other and immersed in the color tank 22 The color wheel 23 and a base 24 disposed opposite the wheel 21 are preliminarily filled with a colorant, and the wheel 21 can adjust a gap with respect to the base 24. 2 and 3, the paperboard 1 has a first surface 101 and a second surface 102 opposite the first surface 101.

Step 2: The paperboard 1 passes between the first rolling wheel 11 and the second rolling wheel 12 of the rolling wheel set 10, and the first rolling wheel 11 and the second rolling wheel 12 are relatively rotated. The plurality of ridges 103 can be embossed on the first surface 101 of the paperboard 1 by the cooperation of the convex portions 112 of the first rolling wheel 11 and the concave portions 122 of the second rolling wheel 12 And a plurality of indentations 104 are formed at the position of the second surface 102 corresponding to the ridges 103, and the cardboard 1 forms a blank 1'.

Step 3: As shown in FIG. 4, the blank 1' is passed between the runner 21 of the color wheel set 20 and the base 24, and the first surface 101 and the ridges 103 are opposed to the The runner 21 abuts the second surface 102 against the base 24, and when the color wheel 23 rotates and adheres to the toner contained in the color tank 22, it is transferred to the color wheel. 23, the surface of the relatively rotating wheel 21, when the wheel 21 rotates relative to the base 24, the surface-attached color material is transferred to the embossments 103 of the blank 1', and A color layer 105 is formed on each of the ridges 103 (see Fig. 5).

Step 4: Form a plate-like finished product 100 having a embossed surface to form a 3D color separation (see Fig. 5).

As shown in FIG. 2 to FIG. 6 , the formed sheet-like finished product 100 is first embossed with the embossed sheet 103 and the concave embossing 104 by using the rolling wheel set 10 first, and then reused. The color wheel set 20 transfers the color of the surface of the embossing 103, so that the plate-shaped finished product 100 has a embossed surface and forms a 3D color separation effect, and the plate-shaped finished product 100 utilizes the embossing 103. The resulting 3D stereoscopic effect, as well as the color layer 105 printed on the reliefs 103, produces a 3D color separation effect.

Further, the runner 21 can adjust the action of the gap with respect to the base 24, and can be applied to the blanking plate 1' of different thicknesses for performing the coloring operation.

Therefore, as shown in FIG. 6, the present invention is applied to the printing of a surface of a packaging material (such as a paper bag), such as a crocodile skin pattern, a snake skin pattern, a lizard skin pattern, etc., which not only conforms to fashion and The environmental protection needs, and the printing method described above can make the texture of the texture high, and can achieve the three-dimensional touch effect of the unevenness, and after the packaging material is prepared, the relief 103 and the corresponding color layer 105 will not run the grid, you can get accurate positioning, the simulation effect is good, can solve the existing technical problems.

In summary, the present invention has a printing method for embossing the surface of the embossed surface, which is simple in equipment, easy in process, and can solve the technical problem of the existing embossed overprinting, and can indeed achieve the object of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

<TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> 10········ Rolling wheel set 11······· · The first rolling wheel 111······· The first circumferential surface 112······· The convex portion 12········ The second rolling wheel 121····· · The second week surface 122······························································································ </td><td> 23·································································································· One surface 102······ The second surface 103······ The embossing 104······ The concave pattern 1'········· The embryo board 100······ Plate-shaped finished product 105······ Color layer </td></tr></TBODY></TABLE>

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view of a conventional packaging material having a embossed and printed layer; FIG. 3 is a partially enlarged schematic view of FIG. 2; FIG. 4 is a schematic view showing a coloring of one embodiment of the embodiment; FIG. A plan view of a plane; and Fig. 6 is a perspective view of the plate-like product of the embodiment.

Claims (2)

A printing method having a 3D positioning of a relief surface comprises the following steps: (A) preparing a rolling wheel set, a color wheel set and a paper board, the rolling wheel set having a first rolling wheel and a second a rolling wheel, the first rolling wheel has a first circumferential surface and a plurality of convex portions protruding from the first circumferential surface, the second rolling wheel has a second circumferential surface and a plurality of recesses are disposed in the first a concave portion of the two-week surface, wherein the convex portion and the concave portion are mutually engaged when the first rolling wheel and the second rolling wheel rotate relative to each other, the color wheel group has a rotating wheel and a setting a color tank on one side of the runner, a color wheel that is in contact with the wheel and partially immersed in the color tank, and a bottom platform opposite to the wheel, in the color tank Pre-containing coloring material, the paperboard has a first surface and a second surface opposite to the first surface; (B) passing the paperboard through the first rolling wheel of the rolling wheel set and the second rolling wheel Between the first rolling wheel and the second rolling wheel, a plurality of ridges may be embossed on the first surface of the paperboard, and the second surface pair is a plurality of indentations should be formed at the locations of the reliefs, the cardboard forming a blank; (C) passing the blank between the runner of the color wheel set and the base, and the first surface is The ridges are opposite to the rotating wheel such that the second surface abuts against the bottom plate, and when the color wheel rotates and adheres to the color material contained in the color tank, it is transferred to the same a rotating wheel of a relative rotation of the color wheel, the rotating wheel transferring the adhered color material to the ridges of the blank when rotated relative to the base; (D) forming a surface having a relief surface 3D color-divided plate-like finished product. The printing method having the embossed surface 3D positioning according to claim 1, wherein the rotating wheel of the color wheel set prepared in the step (A) can adjust the gap with respect to the bottom stage.