KR101367562B1 - Blanket for printing and method for manufacturing of itself - Google Patents

Abstract

The present invention relates to a blanket for printing and a method of manufacturing the same. The blanket for printing according to the present invention comprises a support layer; A printing layer having a lower surface coupled to and supported by an upper surface of the support layer, and having a printing pattern formed thereon, wherein a printing ink is applied to the upper surface; And a cushion layer having an upper surface coupled to the lower surface of the support layer, wherein the cushion layer is made of a material having a compressive restoring force, the lower layer being in contact with a printing apparatus disposed below the printing layer. A fine uneven pattern is formed on the surface. According to the present invention, it is possible to improve the precision and efficiency of the printing process by improving the adhesion to the roll or flat plate which is the printing device.

Blanket, Cushion Layer, Contact, Slip, Fine Pattern

Description

Blanket for printing and its manufacturing method {Blanket for printing and method for manufacturing of itself}

The present invention relates to a blanket for printing and a method of manufacturing the same. More specifically, by providing an uneven pattern on the surface of the cushion layer disposed under the blanket for printing, printing by improving the adhesion to the roll or flat plate as a printing device The present invention relates to a blanket for printing and a method of manufacturing the same that can improve the precision and efficiency of the process.

Conventional blankets for printing generally have a three-layer structure. That is, the support layer is placed in the middle, and the printing layer is bonded to the upper surface thereof, and the cushion layer is bonded to the lower surface thereof. At this time, the lower cushion layer is manufactured by using an elastomer or foam, which is a material having a compressive restoring force, because the printing process proceeds while being in direct contact with a roll or a flat plate which is a printing apparatus.

Recently, efforts have been made to use a cured silicone product as a material for producing a cushion layer on the basis of excellent compressibility and resilience. However, since the silicone cured product does not generate a sliding phenomenon in contact with the printing apparatus, there is a problem that it is difficult to adhere to the roll or the flat plate which is the printing apparatus without generating bubbles.

There has been a steady effort in the related industry to solve this problem, and the present invention has been devised under this technical background.

The problem to be solved by the present invention is to improve the precision and efficiency of the printing process by improving the adhesion to the roll or flat plate as a printing device by providing a concave-convex pattern on the surface of the cushion layer disposed below the blanket for printing. It is an object of the present invention to provide a blanket for printing and a method of manufacturing the same.

Blanket for printing according to the present invention provided to solve the above problems, a support layer; A printing layer having a lower surface coupled to and supported by an upper surface of the support layer, and having a printing pattern formed thereon, wherein a printing ink is applied to the upper surface; And a cushion layer having an upper surface coupled to the lower surface of the support layer, wherein the cushion layer is made of a material having a compressive restoring force, the lower layer being in contact with a printing apparatus disposed below the printing layer. A fine uneven pattern is formed on the surface.

One of the methods for manufacturing a blanket for printing according to the present invention provided to solve the above-mentioned problems includes (S11) preparing a support layer having a printed layer bonded to an upper surface thereof; (S12) performing surface treatment using a plasma treatment or a primer on the lower surface of the support layer on the rear side of the surface to which the printed layer is bonded; (S13) coating a material for preparing a cushion layer on the lower surface of the surface treated support layer; (S14) hardening the coating layer such that the micropattern on the base film is complementary to the coating layer after mounting on the base film on which the uneven micropattern is formed before the coating layer is cured; And (S15) after the pattern transfer is completed, removing the base film.

Another method of manufacturing a blanket for printing according to the present invention, which is provided to solve the above problems, (S21) preparing a support layer bonded to the upper surface of the printing layer; (S22) coating a material for preparing a cushion layer on the base film on which the uneven micro pattern is formed; (S23) preparing a cushioning layer by curing the concave-convex micro pattern to be complementarily pattern transferred to the coating layer; And (S24) after removing the base film, after the adhesive film or adhesive material is interposed between the rear surface of the surface on which the fine pattern of the cushion layer is formed and the lower surface of the support layer prepared in the step (S21), the cushion And laminating the layer and the support layer.

According to the present invention, there is an advantage that can improve the precision and efficiency of the printing process by improving the adhesion of the printing blanket to the roll or flat plate which is a printing device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate understanding of the present invention. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

The structure of the blanket for printing according to the present invention will be described in more detail with reference to FIG. 1.

1 is a schematic cross-sectional view of an embodiment of a blanket for printing according to the present invention. As shown in FIG. 1, the printing layer 12 is interlayer bonded to the upper surface of the intermediate support layer 10. The printing ink is applied to the upper surface of the printing layer 12, and the printing process is completed by transferring the printing ink to a separate base layer (not shown) which requires printing as a pattern is formed in an intaglio or embossing. In this case, the print layer 12 may be made of the same material as the support layer 10, or may be made of different materials. In addition, the printed layer 12 and the support layer 10 may be manufactured in an integrated structure from the beginning, and there may be no distinction between layers. Since the printed layer 12 and the supporting layer 10 are manufactured in different paths, respectively, the printed layer 12 and the support layer 10 may be formed in an integrated structure through interlayer bonding, that is, interlayer bonding or bonding. May have On the other hand, the cushion layer 14 is interlayer bonded to the lower surface of the intermediate support layer (10). The cushion layer 14 is an elastic material layer that can be contracted by a certain pressure or compressed by its physical properties while making contact with a roll or a flat plate disposed thereunder during the printing process. The cushion layer 14 may be formed by coating a material used to manufacture the cushion layer 14 after performing a plasma treatment or a primer treatment on a lower surface of the support layer 10, or by separately preparing the cushion layer 14. An adhesive material layer (not shown) may be interposed between the cushioned layer 14 and the support layer 10, and then laminated and bonded by a method of laminating the two layers. In the conventional cushion layer, the surface is manufactured in a smooth state without a special shape or shape, but in the present invention, a fine pattern is formed on the lower surface 16 of the cushion layer 14. The fine pattern formed on the lower surface 16 of the cushion layer 14, when the printing blanket is mounted on a roll or a flat plate disposed under the printing process, minimizes the contact area so as to have a slip property so that the mounting is performed. By facilitating and preventing bubbles or the like from occurring between the contact surfaces, an advantage of eliminating the problem of printing failure is realized. The fine pattern formed on the lower surface 16 of the cushion layer 14 may be manufactured by a method of transferring the pattern onto a substrate (not shown) having a complementary fine pattern formed in advance. It will be described in more detail with reference to 2 and 3.

A method of manufacturing a blanket for printing according to the present invention will be described in more detail with reference to FIGS. 2 and 3.

2 is a schematic process flow diagram illustrating one embodiment of a method of making a blanket for printing according to the present invention.

(S11) A support layer having a printed layer bonded to its upper surface is prepared. The support layer may be formed of polymer film and sheet such as polyethylene terephthalate (PET), polycarbonate (PC), polypropylene (PE), or metal such as aluminum foil, copper foil, or stainless steel sheet. Film or sheet may be used, the printing layer may be used, such as silicone rubber, NBR rubber.

(S12) A plasma treatment or a primer is coated on the lower surface of the support layer on the rear side of the surface to which the printed layer is bonded. As a specific example of the primer, a material consisting of 100 parts by weight of KCC SG6733A, 1 part by weight of SK0010C and 1,000 parts by weight of toluene is used. By performing such a surface treatment, the coating layer for cushion layer manufacturing formed below the support layer can be combined more stably.

(S13) A material for preparing a cushion layer is coated on the lower surface of the surface-treated support layer. At this time, as a specific example of the material for producing the cushion layer, among the brand name Dow Sylgard 184 type A and type B, 100 parts by weight, 10 parts by weight of B is included, and 1.5 parts by weight of foam particles Materials configured to be included are used. Silicone rubber, urethane, NBR rubber, EPDM rubber, etc. may be used as the cushion layer.

(S14) Before the coating layer is cured, it is mounted on the base film on which the uneven micro pattern is formed. Thereafter, the coating layer is cured so that the fine pattern on the base film is complementary to the coating layer. The adhesive film may be a double-sided adhesive film according to the material of the support layer and the cushion layer. When the support layer is a PET film, the adhesive layer-side adhesive layer may be used as the adhesive layer, and the adhesive layer-side adhesive layer may be used as the adhesive layer.

(S15) After the pattern transfer is completed, the base film is removed.

Figure 3 is a schematic process flow diagram for explaining another embodiment of a method for producing a blanket for printing according to the present invention.

(S21) A support layer having a printed layer bonded to its upper surface is prepared. The support layer may be formed of polymer film and sheet such as polyethylene terephthalate (PET), polycarbonate (PC), polypropylene (PE), or metal such as aluminum foil, copper foil, or stainless steel sheet. Film or sheet may be used, the printing layer may be used, such as silicone rubber, NBR rubber.

(S22) A material for preparing a cushion layer is coated on the base film on which the uneven micro pattern is formed. At this time, as a specific example of the material used to manufacture the cushion layer, among the brand name Dow Sylgard 184 type A and type B, type A is to include 100 parts by weight, type B is 10 parts by weight, foam particles 1.5 Materials that are formulated to contain parts by weight are used. Silicone rubber, urethane, NBR rubber, EPDM rubber, etc. may be used as the cushion layer.

(S23) The cushion layer is prepared by curing the concave-convex micro pattern to be complementarily pattern transferred to the coating layer.

(S24) After removing the base film, the adhesive film is interposed between the back surface of the surface on which the fine pattern of the cushion layer is formed and the lower surface of the support layer prepared in the step (S21), and then laminating the cushion layer and the support layer do. The adhesive film may be a double-sided adhesive film according to the material of the support layer and the cushion layer. When the support layer is a PET film, the adhesive layer-side adhesive layer may be used as the adhesive layer, and the adhesive layer-side adhesive layer may be used as the adhesive layer.

Figure 4 is a photograph of the surface formed with a fine pattern of the cushion layer is attached to the printing blanket prepared according to Example 1 of the present invention, Figure 5 is a cushion layer attached to the printing blanket prepared according to Example 2 of the present invention 6 is a photograph of the surface on which the fine pattern is formed, and FIG. 6 is a photograph of the surface of the comparative example compared to the cushion layer according to the present invention. The length scales of FIGS. 5 and 6 are the same as the length scales shown at the upper right in FIG. 4.

Examples 1, 2 and Comparative Examples below relate to an example of manufacturing a cushion layer bonded to a lower surface of a support layer of a blanket for printing, and particularly Examples 1 and 2 are examples of manufacturing a cushion layer having a fine pattern according to the present invention. It is about.

Example 1

Wacker Elastosil M 437 of Type A and B of the A, type B, the coating liquid for the cushion layer manufacturing composition composed of 90% by weight, B-type of 10% by weight is coated on the PET film with a fine pattern, Cured for 1 hour in an oven at 90 ℃. After cooling it at room temperature, the coating material layer is separated from the base film, and it can be seen from FIG. 1 that a fine pattern is formed on the coating material layer in contact with the base film.

Example 2

Dow Sylgard 184 Type A and type B, 100 parts by weight of the type A, 10 parts by weight of the B type, the fine particles of the coating liquid for preparing the cushion layer is formed so that the foam particles contain 1.5 parts by weight. It was coated on the formed PET film and cured in an oven at 90 ° C. for 1 hour. After cooling it at room temperature, when the coating material layer is separated from the base film, it can be seen from FIG. 2 that a fine pattern is formed on the coating material layer in contact with the base film.

Comparative Example

The same material as used in Example 2 was used as the coating liquid for preparing the cushion layer, which was coated on a PET film on which no pattern was formed, and cured in an oven at 90 ° C. for 1 hour. After cooling to room temperature, the coating material layer is separated from the base film. In the comparative example, unlike Examples 1 and 2, since no pattern is formed on the PET film, no pattern is formed on the coating material layer, and the surface thereof is smoothly formed.

In the case of the photographs of FIGS. 4 and 5 of Examples 1 and 2, since the micropattern is formed on the surface of the cushion layer, the above-described technical effects can be sufficiently expressed. However, the photographs of FIG. According to the present invention, since the pattern is not formed on the surface of the cushion layer, when it is mounted on a roll or a flat plate disposed at the lower part of the printing process, slippage does not occur, so that it is difficult to mount easily. By nesting, it can be seen that the problem of printing failure may ultimately occur by abnormally deforming the printing surface, which is not preferable.

Optimal embodiments of the present invention described above have been disclosed. Although specific terms have been used herein, they are only used for the purpose of describing the present invention in detail to those skilled in the art and are not intended to limit the scope of the present invention as defined in the claims or the claims.

Since the present invention can improve the precision and efficiency of the printing process by improving the adhesion of the printing blanket to a roll or a flat plate, which is a printing device, it is apparent that the present invention can be usefully used in related industries.

The following drawings are attached to this specification together with the detailed description of the invention described above as being presented only as a material for understanding the technical spirit of the present invention in more detail, the present invention is not limited to the matters described only in those drawings is not interpreted. It should be obvious.

1 is a schematic cross-sectional view of an embodiment of a blanket for printing according to the present invention.

Figure 2 is a schematic process flow diagram for explaining one embodiment of a method for manufacturing a blanket for printing according to the present invention.

Figure 3 is a schematic process flow diagram for explaining another embodiment of a method for producing a blanket for printing according to the present invention.

Figure 4 is a photograph of the surface of the fine pattern of the cushion layer is attached to the printing blanket prepared according to Example 1 of the present invention.

FIG. 5 is a photograph of a surface on which a fine pattern of a cushion layer attached to a printing blanket manufactured according to Example 2 of the present invention is formed. FIG.

Figure 6 is a photograph of the surface of the comparative example compared to the cushion layer according to the present invention.

Claims (6)

Support layer; A printing layer having a lower surface coupled to and supported by an upper surface of the support layer, and having a printing pattern formed thereon, wherein a printing ink is applied to the upper surface; And In the blanket for printing comprising a; a cushion layer having an upper surface coupled to the lower surface of the support layer, The cushion layer is a blanket for printing, which is made of a material having a compressive restoring force, and has a fine concavo-convex pattern formed on a lower surface thereof in contact with a printing apparatus disposed under the printing process. The cushioning layer is a blanket for printing, characterized in that it comprises a silicone rubber. The method of claim 1, The printing layer is a blanket for printing, characterized in that it is provided with a single layer structure made of a single material without distinguishing between the support layer and the layer, or a two-layer structure made of a different material and combined between the support layer. The method of claim 1, The cushion layer is a blanket for printing, characterized in that the surface of the support layer after the plasma (plasma) treatment or primer (primer) treatment, the material layer formed by coating the material used for the cushion layer production. The method of claim 1, The blanket for printing, characterized in that the adhesive layer is interposed between the support layer and the cushion layer made of a laminated adhesive structure. In the method for producing a blanket for printing according to claim 1, (S11) preparing a supporting layer having a printed layer bonded to an upper surface thereof; (S12) performing surface treatment using a plasma treatment or a primer on the lower surface of the support layer on the rear side of the surface to which the printed layer is bonded; (S13) coating a material for preparing a cushion layer on the lower surface of the surface treated support layer; (S14) curing the coating layer such that the micropattern on the base film is complementary to the coating layer after mounting on the base film on which the uneven micropattern is formed before the coating layer is cured; And (S15) After the pattern transfer is completed, the step of removing the base film; including the manufacturing method of the blanket for printing, comprising: The cushion layer is a blanket manufacturing method for printing, characterized in that it comprises a silicone rubber. In the method for producing a blanket for printing according to claim 1, (S21) preparing a support layer having a printed layer bonded to its upper surface; (S22) coating a material for preparing a cushion layer on the base film on which the uneven micro pattern is formed; (S23) preparing a cushioning layer by curing the concave-convex micro pattern to be complementarily pattern transferred to the coating layer; And (S24) After removing the base film, the adhesive film is interposed between the back surface of the surface on which the fine pattern of the cushion layer is formed and the lower surface of the support layer prepared in the step (S21), and then laminating the cushion layer and the support layer As a printing blanket manufacturing method, characterized in that proceeding, including; The cushion layer is a blanket manufacturing method for printing, characterized in that it comprises a silicone rubber.

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