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Printing sheet, decorative sheet, and adhesive decorative sheet

A decorative sheet and sheet technology, applied in the directions of printing, printing process, printing device, etc., can solve the problems of not easy to draw sheets for printing, easy adhesion of sheet substrates, etc., and achieve the effect of excellent transparency

Active Publication Date: 2015-05-20
OJI HLDG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the printing sheet on which the anchor coat layer is formed is wound into a roll, the anchor coat layer and the sheet substrate adjacent to the anchor coat layer are likely to stick together. The problem of drawing out the printing sheet

Method used

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  • Printing sheet, decorative sheet, and adhesive decorative sheet
  • Printing sheet, decorative sheet, and adhesive decorative sheet
  • Printing sheet, decorative sheet, and adhesive decorative sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0192]

[0193] 100 parts by mass of acrylic urethane oligomer (trade name Art Resin UN-905, manufactured by Negami Kogyo Co., Ltd., mass average molecular weight 40,000 to 200,000, solid content 70% by mass, solvent is toluene), 12 parts by mass of colloidal silica A as a pigment and 3 parts by mass of a photopolymerization initiator (trade name IRGACURE184, manufactured by BASF Corporation) were mixed to prepare a composition for forming a curable resin layer.

[0194] Table 1 shows the composition of the composition for forming a curable resin layer. In addition, the blending amounts (contents) of the curable resin, the pigment, and the photopolymerization initiator shown in Table 1 are the amounts (parts by mass) in terms of solid content.

[0195]

[0196] A PET film (trade name Lumirror U48, manufactured by Toray Corporation, 21cm×29.7cm, thickness 75μm) as a plastic substrate was used, and the obtained composition for forming a hardened resin layer was bar-coated on the plas...

Embodiment 2

[0198] Except that the compounding amount of colloidal silica A was changed from 12 parts by mass to 25 parts by mass, in the same manner as in Example 1, a composition for forming a curable resin layer having the composition shown in Table 1 was prepared.

[0199] Except for using the obtained composition for forming a curable resin layer, a printing sheet was obtained in the same manner as in Example 1.

Embodiment 3

[0201] Except that colloidal silica B was used instead of colloidal silica A, in the same manner as in Example 1, a curable resin layer forming composition having the composition shown in Table 1 was prepared.

[0202] Except for using the obtained composition for forming a curable resin layer, a printing sheet was obtained in the same manner as in Example 1.

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Abstract

The present invention relates to a printing sheet for lithographic printing plates, which comprises a plastic base and a curable resin layer that is laminated on at least one surface of the plastic base. The curable resin layer contains a curable resin and a pigment, and the pigment is composed of inorganic fine particles having hydrophobilized surfaces and an average particle diameter of 5-90 nm. The curable resin layer has a thickness of 0.1-15 mum. The present invention is able to provide: a printing sheet which exhibits excellent blocking resistance, printability and transparency when a lithographic printing plate is used for printing; a decorative sheet which is obtained by making a print on the printing sheet; and an adhesive decorative sheet.

Description

Technical field [0001] The present invention relates to a printing sheet, a decorative sheet formed by printing the printing sheet, and an adhesive decorative sheet. [0002] The present invention claims priority based on Japanese Patent Application No. 2012-192200 filed in Japan on August 31, 2012, and the content thereof is incorporated herein. Background technique [0003] There are cases where a sheet (decorative sheet) decorated by printing or the like is attached to the surface of the molded product to impart design to the molded product, or to protect the surface of the molded product. [0004] In most cases, the surface of the sheet (printing sheet) before printing is formed with an anchor coat in order to improve the adhesion with the printed layer. [0005] However, in the case of printing on a printing sheet using a lithographic printing plate, if an adhesion-promoting coating is formed, the printing sheet and the lithographic printing plate are easily adhered (blocking), r...

Claims

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Application Information

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IPC IPC(8): B32B27/20B41N1/08B41M1/30
CPCB32B7/12B32B27/08B32B27/20B41M1/30B32B2307/538B32B2307/412B32B2307/75B32B2307/4026B41M5/5209
Inventor 福田升平濑口诚司清水滋吕宫崎樱藤木保武
Owner OJI HLDG CORP