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Intermediate transfer medium

An intermediate transfer, medium technology, applied in printing, printing device, post-processing of printing, etc., can solve the problems of poor coating stability, coating cracks, protective layer cracks, etc., to achieve excellent plasticizer resistance, simple Excellent effect of durability and coating film stability

Active Publication Date: 2015-08-26
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, there is a problem that the coating liquid for a protective layer containing an acrylic resin has poor film stability, and when the coating liquid for a protective layer is applied and dried, cracks occur in the coating film, and cracks also occur in the finally formed protective layer.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] A PET film with a thickness of 12 μm was used as a base material, and a release layer-forming coating liquid having the following composition was applied to one side of the base material by a bar coating method, dried to a thickness of 0.8 μm, and dried to form a release layer. Next, a coating solution 1 for forming a protective layer having the following composition was applied on the peeling layer by bar coating, dried to a thickness of 1.0 μm, and dried to form a protective layer. Next, a receiving layer-forming coating solution 1 having the following composition was applied on the protective layer by bar coating, dried to a thickness of 2.5 μm, and dried to form a receiving layer, whereby the intermediate transfer medium of Example 1 was obtained.

[0141]

[0142] ·Acrylic

[0143] 100 copies

[0144] (BR-87 (manufactured by Mitsubishi Rayon Co., Ltd.)

[0145] ·Toluene

[0146] 200 copies

[0147] ·MEK

[0148] 200 copies

[0149]

[0150] ·Polyvinyl alc...

Embodiment 2

[0169] The intermediate transfer medium of Example 2 was obtained in the same manner as in Example 1 except that the protective layer forming coating liquid 1 was changed to the protective layer forming coating liquid 2 having the following composition.

[0170]

[0171] ·Polyvinyl butyral

[0172] 10 copies

[0173] (BM-5 degree of saponification: 34.0% manufactured by Sekisui Chemical Co., Ltd.)

[0174] ·MEK

[0175] 45 copies

[0176] ·Toluene

[0177] 45 copies

Embodiment 3

[0179] The intermediate transfer medium of Example 3 was obtained in the same manner as in Example 1 except that the protective layer-forming coating liquid 1 was changed to the protective layer-forming coating liquid 3 having the following composition.

[0180]

[0181] · Polyvinyl acetal

[0182] 50 copies

[0183] (KX-1 degree of saponification: 70.0 to 90.0% manufactured by Sekisui Chemical Co., Ltd.)

[0184] ·water

[0185] 25 copies

[0186] ·IPA

[0187] 25 copies

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Abstract

Provided is an intermediate transfer medium which has excellent coating film stability and plasticizer resistance, an intermediate transfer medium which is capable of easily obtaining a printed matter that has high durability, or an intermediate transfer medium which has excellent releasability from a thermal transfer sheet and excellent transferability to a transcription receiving article. Specifically provided is an intermediate transfer medium, in which a substrate, protective layers having a layered structure of two or more layers, and a receiving layer are layered in this order. One layer in the protective layers having the layered structure contains, as a main component, one material or a mixture of two or more materials selected from the group consisting of polyesters having a high polymerization degree, a number-average molecular weight (Mn) of not less than 12,000 and a Tg of not less than 60°C, polycarbonates and polyester urethanes. Another layer in the protective layers having the layered structure contains one or more materials selected from the group consisting of polyvinyl alcohols, polyvinyl butyrals, polyvinyl acetals and polyvinyl pyrrolidones. The receiving layer contains a side chain-type aralkyl-modified silicone in an amount of 0.5-5% by weight on a base of the total weight of the receiving layer.

Description

[0001] This application is a divisional application of the Chinese invention application "intermediate transfer medium" with the filing date of August 23, 2011 and the application number of 201180041854.9. technical field [0002] The present invention relates to an intermediate transfer medium. Background technique [0003] Currently, the thermal transfer method is widely used as a convenient printing method. The fusion transfer method, which is one of the thermal transfer methods, is an image forming method in which a thermal transfer sheet having a coloring material such as a pigment and a heat-melting ink layer containing a binder such as heat-melting wax or resin is combined with Thermal transfer image receiving sheets such as paper or plastic sheets are superimposed, and the energy corresponding to the image information is applied from the back side of the thermal transfer sheet through a heating device such as a thermal head to transfer the colorant and adhesive toget...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/44B32B27/06
CPCB41M5/44B41M5/50B41M7/0027B41M5/5272B41M5/529B41M5/38257B41M2205/10B41M5/42B41M5/5227B41M2205/38B41M5/382B41M5/40B41M5/52B41M2205/40
Inventor 与田晋也石田忠宏太田光洋
Owner DAI NIPPON PRINTING CO LTD
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