# US 2021/0276320 A1 · Releasing member-integrated transfer sheet, method for producing print, method for producing transfer sheet, and print system

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- Number: US 2021/0276320 A1
- Document ID: US20210276320A1
- Status: Published application
- Kind: A1
- Application number: 17/303,186
- Filed: 2021-05-24
- Published: 2021-09-09
- Earliest claimed: 2017-02-16
- Assignees: Dai Nippon Printing Co., Ltd.
- Applicants: Dai Nippon Printing Co., Ltd.
- Inventors: Shuhei YOSHINO; Shinya YODA
- Web page: https://patentgrep.com/patent/US20210276320A1

## CPC

- B32B 7/06: permitting easy separation
- B32B 7/02: Physical, chemical or physicochemical properties
- B32B 27/00: Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)}
- B41J 2/0057: {where an intermediate transfer member receives the ink before transferring it on the printing material}
- B41J 2/325: by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
- B41M 5/41: Base layers {supports or substrates}
- B41M 5/42: Intermediate, {backcoat}, or covering layers {(B41M5/405 takes precedence; multilayer thermal transfer systems in general B41M5/38214)}
- B44C 1/17: Dry transfer
- C09J 7/40: characterised by release liners
- B41M 5/382: Contact thermal transfer or sublimation processes (sublistatic printing using a pre-formed image B41M5/035; ink-, dye- or pigment-receptive coatings B41M5/52)
- B41M 2205/02: Dye diffusion thermal transfer printing (D2T2)
- B41M 2205/06: relating to melt (thermal) mass transfer
- B41M 2205/10: Post-imaging transfer of imaged layer; transfer of the whole imaged layer
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P)
- B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)}
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)

## Abstract

Provided is a releasing member-integrated transfer sheet capable of improving both the conveyability on forming an image on a transfer layer and the transferability on transferring the transfer layer onto a transfer receiving article. A releasing member-integrated transfer sheet includes a releasing member including a first support and an adhesive layer provided on the first support, and a transfer sheet including a second support and a transfer layer provided on the second support, the transfer sheet being integrated with the releasing member such that the adhesive layer is opposed to the second support. The transfer layer is peelable from the second support, and the adhesive force between the second support and the adhesive layer is smaller than the adhesive force between the first support and the adhesive layer to thereby make the releasing member separable from the transfer sheet.

## Claims

### Claim 1

A releasing member-integrated transfer sheet comprising:
a releasing member comprising
a first support, and
a peeling layer, comprising a resin layer,
provided on the first support via a primer layer; and
a transfer sheet comprising
a second support, and
a transfer layer, comprising a receiving layer, provided on the second support via a protective layer,
wherein the transfer sheet is integrated with respect to the releasing member so that the peeling layer is opposed to the second support,
wherein the transfer layer is peelable from the second support, and
wherein an adhesive force between the second support and peeling layer is smaller than an adhesive force between the first support and the peeling layer so that the transfer sheet is separable from the releasing member.

### Claim 2 (depends on 1)

The releasing member-integrated transfer sheet according to claim 1, wherein one or both of a stiffness of the releasing member-integrated transfer sheet in a machine direction (MD) and that in a traverse direction (TD) are in a range of 5 mN or more to 25 mN or less, as measured by the Gurley method in accordance with JIS-L-1085 (1998).

### Claim 3 (depends on 1)

The releasing member-integrated transfer sheet according to claim 1, wherein the resin layer has a thickness in a range of 2.5 μm or more and 50 μm.

### Claim 4 (depends on 1)

The releasing member-integrated transfer sheet according to claim 1, wherein the receiving layer of the transfer layer comprises an image forming layer.

### Claim 5 (depends on 1)

The releasing member-integrated transfer sheet according to claim 1, wherein the resin layer defining the peeling layer comprises at least one polyolefin resin.

### Claim 6

A releasing member-integrated transfer sheet comprising:
a releasing member comprising a first support; and
a transfer sheet comprising a transfer layer comprising an image forming layer provided on a second support,
wherein the transfer layer comprises an image forming layer,
wherein the transfer layer is peelable from the second support,
wherein the first support is separated from the second support via at least one resin layer, and
wherein an adhesive force between the second support and the resin layer is smaller than an adhesive force between the first support and the resin layer so that the transfer sheet is separable from the releasing member.
