# US 5,352,652 A · Heat transfer sheet

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- Number: US 5,352,652 A
- Document ID: US5352652A
- Status: Granted
- Kind: A
- Application number: 08/116,276
- Filed: 1993-09-03
- Granted: 1994-10-04
- Earliest claimed: 1985-02-28
- Assignees: Dai Nippon Insatus Kabushiki Kaisha
- Inventors: Yoshikazu Ito; Masanori Akada; Masaki Kutsukake; Mineo Yamauchi; Masanori Saito; Atsushi Takano; Hideichiro Takeda; Hitoshi Arita
- Web page: https://patentgrep.com/patent/US5352652A

## CPC

- B41M 5/42: Intermediate, {backcoat}, or covering layers {(B41M5/405 takes precedence; multilayer thermal transfer systems in general B41M5/38214)}
- B41M 5/38207: {characterised by aspects not provided for in groups B41M5/385 - B41M5/395}
- B41M 5/395: Macromolecular additives, e.g. binders
- B41M 5/41: Base layers {supports or substrates}
- B41M 5/52: Macromolecular coatings
- B41M 5/38214: {Structural details, e.g. multilayer systems (composition of individual layers B41M5/42)}
- B41M 5/385: characterised by the transferable dyes or pigments {(infrared absorbing dyes B41M5/465)}
- B41M 5/423: {characterised by non-macromolecular compounds, e.g. waxes}
- B41M 5/426: {characterised by inorganic compounds, e.g. metals, metal salts, metal complexes}
- B41M 5/44: characterised by the macromolecular compounds
- B41M 5/5254: {characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers}
- B41M 5/5272: {Polyesters; Polycarbonates}
- B41M 2205/30: Thermal donors, e.g. thermal ribbons
- Y10S 428/913: Material designed to be responsive to temperature, light, moisture
- Y10S 428/914: Transfer or decalcomania
- Y10T 428/254: Polymeric or resinous material
- Y10T 428/256: Heavy metal or aluminum or compound thereof
- Y10T 428/31551: Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T 428/31663: As siloxane, silicone or silane
- Y10T 428/31855: Of addition polymer from unsaturated monomers
- Y10T 428/31928: Ester, halide or nitrile of addition polymer
- Y10T 428/31931: Polyene monomer-containing
- Y10T 428/31971: Of carbohydrate
- 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)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A heat transfer sheet having a heat transfer layer on one surface of a base sheet, said heat transfer layer being formed of a material containing a dye substantially dissolved in a binder with a weight ratio of the dye to the binder (dye/binder ratio) of 0.3 or more, and said base sheet having a heat-resistant slipping layer provided on the surface on which the heat transfer layer is not provided. A heat transferable sheet to be used in combination with the heat transfer sheet, comprising a receptive sheet having (a) a base sheet and (b) a receptive layer for receiving the dye migrated from the above-mentioned heat transfer sheet on heating, said receptive sheet having an intermediate layer provided between the base sheet and the receptive layer.

## Claims

### Claim 1

A heat transfer sheet comprising:
a base sheet; and
dye layers comprising yellow, magenta and cyan dye layers formed on the base sheet side by side, each dye layer comprising a binder and a dye, the dye of said magenta dye layer comprising C.I. Disperse Red 60 and the dye of said yellow dye layer having the following chemical formula: ##STR2##

### Claim 2 (depends on 1)

The heat transfer sheet according to claim 1, wherein a dye of said cyan dye layer comprises C.I. Solvent Blue 63.

### Claim 3 (depends on 1)

The heat transfer sheet according to claim 1, wherein the dye layer further comprises a polyethylene wax or vinylidene chloride powder.

### Claim 4 (depends on 2)

The heat transfer sheet according to claim 2, wherein the dye layer further comprises a polyethylene wax or vinylidene chloride powder.

### Claim 5 (depends on 1)

The heat transfer sheet according to claim 1, wherein a heat-resistant slipping layer is further formed on the side of the base sheet where the dye layer is not formed.