Image recording method, and treatment liquid and liquid set used therein

Patent metadata

Field	Value
Publication number	US-9969182-B2
Application number	US-201715483149-A
Country	US
Kind code	B2
Filing date	Apr 10, 2017
Priority date	Apr 19, 2016
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

An image recording method including the steps of forming an image by applying an ink to an ink receiving member and applying a treatment liquid containing an ink-viscosity-increasing component to the ink receiving medium so as to overlap with at least a part of a region of the ink receiving medium to which the ink is applied. The treatment liquid contains a surfactant which lowers a surface tension of water to 25 mN/m or less when added into the water in an amount of 0.1% by mass; and an additive containing at least one compound selected from the group consisting of compounds represented by general formulae (1) to (4):

First claim

What is claimed is:

1. An image recording method comprising the steps of forming an image by applying an ink to an ink receiving medium and applying a treatment liquid containing an ink-viscosity-increasing component to the ink receiving medium so as to overlap with at least a part of a region of the ink receiving medium to which the ink is applied,
wherein the treatment liquid contains:
a surfactant which lowers a surface tension of water to 25 mN/m or less when added into the water in an amount of 0.1% by mass; and
an additive containing at least one compound selected from the group consisting of compounds represented by general formulae (1) to (4):

wherein R 1 and R 2 are each independently a hydroxy group or a carboxylic acid ester group represented by —OCOC x H 2x+1 , R 3 is a carboxylic acid ester group represented by —OCOC y H 2y+1 , and x and y are each independently an integer of 11 to 18;

wherein R 4 is a carboxylic acid ester group represented by —OCOC r H 2r+1 , R 5 to R 7 are each independently a hydroxy group or a carboxylic acid ester group represented by —OCOC z H 2z+1 , t is an integer of 4 to 9, and r and z are each independently an integer of 11 to 18;
R 9 O(AO) p H   General formula (3)

wherein R 9 is a straight-chain or branched alkyl group having 11 to 18 carbon atoms, AO is an alkylene oxide group including an ethylene oxide group, p is an integer of 5 to 15, and (AO) p includes 5 to 15 ethylene oxide groups each of which is the ethylene oxide group; and

wherein R is a straight-chain or branched alkyl group having 11 to 18 carbon atoms, and a sum total of 1+m+n is an integer of 5 to 15.

2. The image recording method according to claim 1 , wherein the surfactant has an ethylene oxide group.

3. The image recording method according to claim 1 , wherein the surfactant lowers a surface tension of water to 15 mN/m or more to 25 mN/m or less when added into the water in an amount of 0.1% by mass.

4. The image recording method according to claim 1 , wherein the treatment liquid contains the additive in an amount of 0.5% by mass or more to 10% by mass or less based on the total mass of the treatment liquid.

5. The image recording method according to claim 1 , wherein the treatment liquid contains the additive in an amount of 2.5% by mass or more to 7.5% by mass or less based on the total mass of the treatment liquid.

6. The image recording method according to claim 1 , wherein the treatment liquid contains the surfactant in an amount of 0.5% by mass or more to 7% by mass or less based on the total mass of the treatment liquid.

7. The image recording method according to claim 1 , wherein the additive contains at least one compound of the compounds represented by the general formulae (1) and (2).

8. The image recording method according to claim 1 , wherein the ink receiving medium is an intermediate transfer member which temporarily retains the image, and wherein the image recording method further comprises a step of transferring the image formed on the intermediate transfer member to a recording medium on which a final image is formed.

9. The image recording method according to claim 1 , wherein the ink receiving medium is a recording medium on which a final image is formed, and wherein the image recording method is such that the formation of the image is conducted on the recording medium.

10. The image recording method according to claim 1 , wherein in the step of forming the image, the application of the ink to the ink receiving medium is conducted by an ink jet recording method.

11. A treatment liquid comprising:
an ink-viscosity-increasing component;
a surfactant which lowers a surface tension of water to 25 mN/m or less when added into the water in an amount of 0.1% by mass; and
an additive containing at least one compound selected from the group consisting of compounds represented by general formulae (1) to (4):

wherein R 1 and R 2 are each independently a hydroxy group or a carboxylic acid ester group represented by —OCOC x H 2x+1 , R 3 is a carboxylic acid ester group represented by —OCOC y H 2y+1 , and x and y are each independently an integer of 11 to 18;

wherein R 4 is a carboxylic acid ester group represented by —OCOC r H 2r+1 , R 5 to R 7 are each independently a hydroxy group or a carboxylic acid ester group represented by —OCOC z H 2z+1 , t is an integer of 4 to 9, and r and z are each independently an integer of 11 to 18;
R 9 O(AO) p H   General formula (3)

wherein R 9 is a straight-chain or branched alkyl group having 11 to 18 carbon atoms, AO is an alkylene oxide group including an ethylene oxide group, p is an integer of 5 to 15, and (AO) p includes 5 to 15 ethylene oxide groups each of which is the ethylene oxide group; and

wherein R is a straight-chain or branched alkyl group having 11 to 18 carbon atoms, and a sum total of 1+m+n is an integer of 5 to 15.

12. The treatment liquid according to claim 11 , wherein the surfactant lowers a surface tension of water to 15 mN/m or more to 25 mN/m or less when added into the water in an amount of 0.1% by mass.

13. The treatment liquid according to claim 11 , for use in the image recording method according to claim 1 .

14. A liquid set for image recording, comprising an ink and a treatment liquid containing an ink-viscosity-increasing component,
wherein the treatment liquid contains:
a surfactant which lowers a surface tension of water to 25 mN/m or less when added into the water in an amount of 0.1% by mass; and
an additive containing at least one compound selected from the group consisting of compounds represented by general formulae (1) to (4):

wherein R 1 and R 2 are each independently a hydroxy group or a carboxylic acid ester group represented by —OCOC x H 2x+1 , R 3 is a carboxylic acid ester group represented by —OCOC y H 2y+1 , and x and v are each independently an integer of 11 to 18;

wherein R 4 is a carboxylic acid ester group represented by —OCOC r H 2r+1 , R 5 to R 7 are each independently a hydroxy group or a carboxylic acid ester group represented by —OCOC z H 2z+1 , t is an integer of 4 to 9, and r and z are each independently an integer of 11 to 18;
R 9 O(AO) p H   General formula (3)

wherein R 9 is a straight-chain or branched alkyl group having 11 to 18 carbon atoms, AO is an alkylene oxide group including an ethylene oxide group, p is an integer of 5 to 15, and (AO) p includes 5 to 15 ethylene oxide groups each of which is the ethylene oxide group; and

wherein R is a straight-chain or branched alkyl group having 11 to 18 carbon atoms, and a sum total of 1+m+n is an integer of 5 to 15.

Assignees

• Canon Kk

Inventors

• Torisaka Yoshitaka
• Imai Takashi

Classifications

• B41J2/0057

  where an intermediate transfer member receives the ink before transferring it on the printing material · CPC title

• B41J11/0015 Primary

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title

• C09D11/54

  Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink · CPC title

• B41M7/0018 Primary

  using ink-fixing material, e.g. mordant, precipitating agent, after printing, e.g. by ink-jet printing, coating or spraying · CPC title

• C09D11/322

  Pigment inks · CPC title