Cleaning solution, set of ink and cleaning solution, cleaning method, cleaning apparatus, printing method, and printing apparatus

Patent metadata

Field	Value
Publication number	US-11261342-B2
Application number	US-201716344279-A
Country	US
Kind code	B2
Filing date	Oct 24, 2017
Priority date	Oct 27, 2016
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

Provided is a cleaning solution including: water; a compound represented by general formula (1) below; a glycol ether solves in an amount of greater than 5 g in 100 g of water having a temperature of 25 degrees C., and a proportion of the glycol ether compound is 1 percent by mass or greater but 30 percent by mass or less, and wherein in general formula (1) below, R 1 represents an alkyl group containing 1 or more but 4 or less carbon atoms.

First claim

The invention claimed is:

1. A cleaning solution, consisting of:
water;
a compound represented by formula (1): below;

a glycol ether compound; and
a surfactant,
wherein:
the glycol ether compound dissolves in an amount of greater than 5 g in 100 g of water having a temperature of 25 degrees C.;
a proportion of the glycol ether compound is 1 percent by mass or greater but 30 percent by mass or less of a total amount of the cleaning solution; and
R 1 represents an alkyl group that comprises 1 or more but 4 or less carbon atoms,
wherein the compound represented by general formula (1) is present in an amount of 40 percent by mass or greater of a total amount of the cleaning solution, and
wherein the water is present in an amount of 10 percent to 60 percent by mass of a total amount of the cleaning solution.

2. The cleaning solution according to claim 1 , wherein:
the glycol ether compound comprises a dialkyl glycol ether compound represented by formula (2):

R 2 represents CnH 2n+1 where n is from 1 through 4;
R 3 represents a hydrogen atom or a methyl group; and
m represents an integer of from 1 through 4.

3. The cleaning solution according to claim 1 , further consisting of:
a glycol ether compound that dissolves in an amount of 5 g or less in 100 g of water having a temperature of 25 degrees C.

4. The cleaning solution according to claim 1 , wherein the surfactant comprises a polyoxyalkylene surfactant.

5. A cleaning method, comprising:
applying the cleaning solution of claim 1 to a wiping member; and
performing wiping with the wiping member to which the cleaning solution is applied.

6. The cleaning method according to claim 5 , wherein:
the cleaning method is a cleaning method for cleaning a nozzle surface of an ink discharging head; and
the performing wiping with the wiping member comprises wiping the nozzle surface with the wiping member.

7. A cleaning apparatus, comprising:
a unit comprising the cleaning solution of claim 1 and configured to apply the cleaning solution to a wiping member; and
a unit configured to perform wiping with the wiping member to which the cleaning solution is applied.

8. The cleaning apparatus according to claim 7 ,
wherein the cleaning apparatus is a cleaning apparatus configured to clean a nozzle surface of an ink discharging head, and
wherein the unit configured to perform wiping with the wiping member is configured to wipe the nozzle surface.

9. A set of an ink and a cleaning solution, the set comprising:
an ink; and
a cleaning solution,
wherein:
the ink comprises resin particles;
the cleaning solution consisting of:
water;
a compound represented by formula (1):

a glycol ether compound; and
a surfactant;
the glycol ether compound dissolves in an amount of greater than 5 gin 100 g of water having a temperature of 25 degrees C.;
a proportion of the glycol ether compound is 1 percent by mass or greater but 30 percent by mass or less of a total amount of the cleaning solution; and
R 1 represents an alkyl group that comprises 1 or more but 4 or less carbon atoms,
wherein the compound represented by general formula (1) is present in an amount of 40 percent by mass or greater of a total amount of the cleaning solution, and
wherein the water is present in an amount of 10 percent to 60 percent by mass of a total amount of the cleaning solution.

10. The set of an ink and a cleaning solution according to claim 9 , wherein:
the glycol ether compound comprises a dialkyl glycol ether compound represented by formula (2):

R 2 represents CnH 2n+1 where n is from 1 through 4;
R 3 represents a hydrogen atom or a methyl group; and
m represents an integer of from 1 through 4.

11. A printing method, comprising:
discharging an ink from a nozzle of an ink discharging head; and
cleaning a nozzle surface of the ink discharging head,
wherein the cleaning comprises:
applying a cleaning solution to a wiping member; and
wiping the nozzle surface with the wiping member to which the cleaning solution is applied, and
wherein the set of claim 5 provides the cleaning solution and the ink.

12. A printing apparatus, comprising:
a discharging unit configured to discharge an ink from a nozzle of an ink discharging head; and
a cleaning apparatus configured to clean a nozzle surface of the ink discharging head,
wherein the cleaning apparatus comprises:
a unit comprising the cleaning solution of the set of claim 9 and configured to apply the cleaning solution to a wiping member; and
a unit configured to wipe the nozzle surface with the wiping member to which the cleaning solution is applied, and
wherein the set of claim 9 provides the ink.

Assignees

• Ricoh Co Ltd

Inventors

• Kohzuki Shizuka
• Bannai Akiko

Classifications

• C09D11/40

  Ink-sets specially adapted for multi-colour inkjet printing · CPC title

• C09D11/033

  characterised by the solvent · CPC title

• B41J2002/16558

  Using cleaning liquid for wet wiping · CPC title

• C11D1/82

  Compounds containing silicon · CPC title

• C11D3/43

  Solvents · CPC title