Printed product and method of producing printed product

Patent metadata

Field	Value
Publication number	US-12459283-B2
Application number	US-202218053720-A
Country	US
Kind code	B2
Filing date	Nov 8, 2022
Priority date	Nov 12, 2021
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

A printed product including: a yellow image formed on an image receiving sheet including a coloring material receiving layer and a surface protective layer formed on the yellow image, wherein the yellow image and the surface protective layer are formed by sequentially applying heat to a yellow coloring material layer for forming the yellow image and a surface protective layer forming layer for forming a surface protective layer through use of a thermal transfer recording sheet including the yellow coloring material layer and the surface protective layer forming layer field sequentially; the yellow coloring material layer contains a compound having a predetermined structure as a yellow coloring material, and wherein in the printed product having formed thereon the yellow image and the surface protective layer, the compound permeates into the coloring material receiving layer to a depth of 2 μm or more.

First claim

What is claimed is:

1 . A printed product comprising:
a yellow image formed on an image receiving sheet including a coloring material receiving layer and a surface protective layer formed on the yellow image, wherein the yellow image and the surface protective layer are formed by sequentially applying heat to a yellow coloring material layer for forming the yellow image and a surface protective layer forming layer for forming a surface protective layer through use of a thermal transfer recording sheet including the yellow coloring material layer and the surface protective layer forming layer fields sequentially formed on a substate; the yellow coloring material layer contains a compound represented by the following formula (1) as a yellow coloring material, and wherein in the printed product, the compound represented by formula (1) permeates to a depth of 2 μm or more from a surface of the coloring material receiving layer:

in formula (1),
R 1 and R 2 each independently represent a hydrogen atom, or a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms,
R 3 represents a linear or branched alkyl group having 1 to 4 carbon atoms, a phenyl group, or an unsubstituted amino group,
R 4 represents a hydrogen atom, a cyano group, an unsubstituted carbamoyl group (—C(═O)NH 2 ), a carboxylic acid ester group, or a carboxylic acid amide group,
R 5 represents a hydrogen atom, a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms, or —N(—R 6 ) R 7 ,
R 6 and R 7 satisfy the following specification (i) or (ii):
(i) R 6 and R 7 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms, an unsubstituted aryl group, an aryl group having a substituent, an unsubstituted acyl group, or an acyl group having a substituent; and
(ii) R 6 and R 7 are bonded to each other to form a ring, and R 6 and R 7 each represent an atomic group required for forming the ring, and
X represents a carbonyl group or a sulfonyl group, and “n” represents an integer of from 1 to 3.

2 . A method of producing a printed product comprising:
forming an image including a yellow image on an image receiving sheet including a coloring material receiving layer; and forming a surface protective layer on the image, wherein the yellow image contains a compound represented by the following formula (1) as a yellow coloring material, and wherein in the printed product, the compound represented by formula (1) permeates to a depth of 2 μm or more from a surface of the coloring material receiving layer:

in formula (1),
R 1 and R 2 each independently represent a hydrogen atom, or a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms,
R 3 represents a linear or branched alkyl group having 1 to 4 carbon atoms, a phenyl group, or an unsubstituted amino group,
R 4 represents a hydrogen atom, a cyano group, an unsubstituted carbamoyl group (—C(═O)NH 2 ), a carboxylic acid ester group, or a carboxylic acid amide group,
R 5 represents a hydrogen atom, a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms, or —N(—R 6 ) R 7 ,
R 6 and R 7 satisfy the following specification (i) or (ii):
(i) R 6 and R 7 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms, an unsubstituted aryl group, an aryl group having a substituent, an unsubstituted acyl group, or an acyl group having a substituent; and
R 6 and R 7 are bonded to each other to form a ring, and R 6 and R 7 each represent an atomic group required for forming the ring, and
X represents a carbonyl group or a sulfonyl group, and “n” represents an integer of from 1 to 3.

Assignees

• Canon Kk

Inventors

• Shirota Koromo
• Yashima Masataka
• Shintou Taichi
• Santo Tsuyoshi
• Noda Tomoyuki

Classifications

• B41M2205/28

  Storage stability; Improved self life · CPC title

• B41M5/382

  Contact thermal transfer or sublimation processes (sublistatic printing using a pre-formed image B41M5/035; ink-, dye- or pigment-receptive coatings B41M5/52) · CPC title

• B41M2205/02

  Dye diffusion thermal transfer printing (D2T2) · CPC title

• B41M7/0027

  using protective coatings or layers by lamination or by fusion of the coatings or layers · CPC title

• B41M5/38264

  Overprinting of thermal transfer images · CPC title