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Heat transfer image recording composite sheet

A technology for image recording and composite sheets, applied in temperature recording methods, printing, printing devices, etc., can solve problems such as unsatisfactory quality of thermal transfer recording sheets

Inactive Publication Date: 2008-01-23
OJI PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, the quality of the resulting conventional releasably bonded thermal transfer recording sheet is unsatisfactory and must be improved

Method used

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Examples

Experimental program
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preparation example Construction

[0113] There is no limitation on the preparation method of the hollow particles. The hollow particles may be selected from those mentioned below.

[0114] (i) expanded hollow particles prepared by thermally foaming particles comprising a thermoplastic polymer material and a thermally expandable substance mixed into the thermoplastic polymer material;

[0115] (ii) A microcapsule obtained by forming precursor microcapsules, each precursor microcapsule comprising a core portion consisting of a volatile liquid and a shell portion comprising a thermoplastic polymer material, the shell portion The volatile liquid is evaporated from the precursor microcapsules to form microcapsules each having a hollow core surrounded and closed by a shell by surrounding the core part by the microcapsule-polymerization method.

[0116] The hollow particles can also be produced by first forming a non-foamed adhesive layer comprising non-foamed particles formed by mixing a thermoplastic resin with a ...

Embodiment 1

[0131] In the preparation of the image-recording sheet substrate (C) of the image-recording sheet, use a thickness of 50 micrometers and a reference mass of 50 g / m 2 , a compressive modulus of 50MPa oriented porous polyethylene terephthalate film (trade name: 50E63S, produced by TORAY) as the upper oriented porous polyester film layer (a), on which the upper oriented porous polyester film layer The front surface of (a) forms the image receiving layer (D); and using a thickness of 60 microns and a reference mass of 45 g / m 2, a porous synthetic paper sheet (trade name: YUPO FPG60 produced by YUPO Company) with a compressive modulus of 7 MPa as the lower oriented porous polymer film layer (b), after the lower oriented porous polymer film layer (b) The surface is coated with an adhesive layer (E).

[0132] Laminate the upper polyester film to the lower polymer film with a polyester adhesive by dry lamination to give a dry solids content of 4 g / m 2 image-recording sheet substrate...

Embodiment 2

[0171] A thermal transfer image-recording composite sheet was prepared in the same manner as in Example 1 except for the following differences.

[0172] With a thickness of 55 microns and a reference mass of 30g / m 2 And a porous polypropylene film (trade name: 260 LLG 302, produced by MOBILE) having a compression modulus of 5 MPa was used instead of the porous synthetic paper sheet (trade name: YUPO FPG60) for the lower oriented porous polymer film layer (b).

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Abstract

A thermal transfer image recording composite sheet has a lamination structure: (2) image receiving sheet section (including image receiving layer (D), image recording sheet substrate (C) and adhesive layer (E)) and (1) release sheet section (including release layer (B) and release sheet substrate (A)), and exhibits, as a whole, a compressive modulus of 50 MPa or less, wherein, the substrate (C) is constituted from (a) an upper oriented porous polyester film layer bonded to the image receiving layer (D) and (b) a lower oriented porous polymer film layer, the polymer of which is different from polyester of the layer (a), laminated on the upper film layer (a) and bonded to the adhesive layer (E), or the adhesive layer (E) comprises, together with an adhesive agent, a plurality of hollow particles each formed from a hollow core portion and a shell portion and has an average particle size of 0.3 to 30 mu m, in which recording sheet the image receiving section (2) can be separated from the release sheet section (1) and adhered to a desired article.

Description

technical field [0001] The present invention relates to a thermal transfer image-recording composite sheet, which is hereinafter referred to as an "image-recording composite sheet", and more particularly, the present invention relates to an image-recording composite sheet in which the image-recording sheet is partly detachable When the image is thermally transferred and recorded on the image recording sheet part, the image recording sheet part can be separated from the release sheet part and adhered to the desired object, while the image recording The composite sheet has high resistance to roughness and dents of the image-receiving layer on which the image-receiving layer is formed due to thermal shrinkage of the paper sheet base. When the ink image recording sheet is thermally imaged by the thermal head of a thermal transfer printing machine, it is possible to record thereon an ink image having a sharpness and resolution comparable to that of a silver salt photographic image,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/40B32B5/18B32B7/06C09J5/08C09J7/02B41M5/41B41M5/42B41M5/52
CPCB41M5/40B41M5/42B41M5/41B41M5/502B41M2205/32Y10T428/1405Y10T428/1476Y10T428/24893Y10T428/2495Y10T428/25Y10T428/31551Y10T428/31725Y10T428/31786Y10T428/31855
Inventor 田中良正水原由郎长嶋茂清水良浩篠原英明
Owner OJI PAPER CO LTD
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