Ink jet recording method

Patent metadata

Field	Value
Publication number	US-9527314-B2
Application number	US-201615097620-A
Country	US
Kind code	B2
Filing date	Apr 13, 2016
Priority date	Apr 16, 2015
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

An ink jet recording method includes forming first and second liquid composition aggregated layers by respectively applying first and second liquid compositions containing resin to a recording medium using an ink jet recording head; performing heating and pressurization of the medium in a first fixation step using a first fixing unit; and performing heating and pressurization of the medium in a second fixation step using a second fixing unit followed by cooling to separate the medium from the second fixing unit. MFT1>MFT2 and T1>MFT1≧T2>MFT2≧T3 are satisfied, where MFT1, MFT2 are, respectively, minimum film forming temperatures of the first and second liquid composition aggregated layers, and T1, T2, and T3 are temperatures of the first and second liquid composition aggregated layers upon heating and pressurization in first and second fixation steps and upon separation in second fixation step, respectively.

First claim

What is claimed is:

1. An ink jet recording method comprising:
a step of forming a first liquid composition aggregated layer by applying a first liquid composition containing a resin to a recording medium by using an ink jet recording head;
a step of forming a second liquid composition aggregated layer by applying a second liquid composition containing a resin to the recording medium by using an ink jet recording head;
a first fixation step of performing heating and pressurization of the recording medium on which the first liquid composition aggregated layer and the second liquid composition aggregated layer are formed by using a first fixing unit; and
a second fixation step,
wherein the second fixation step comprises performing heating and pressurization of the recording medium subjected to the first fixation step by using a second fixing unit followed by cooling the recording medium to separate the recording medium from the second fixing unit, and
wherein
MFT1>MFT2,  (1-1)

and
T1>MFT1≧T2>MFT2≧T3  (1-2)

are satisfied,
where MFT1 is a minimum film forming temperature of the first liquid composition aggregated layer, MFT2 is a minimum film forming temperature of the second liquid composition aggregated layer, T1 is a temperature of the first liquid composition aggregated layer and the second liquid composition aggregated layer upon the heating and pressurization in the first fixation step, T2 is a temperature of the first liquid composition aggregated layer and the second liquid composition aggregated layer upon the heating and pressurization in the second fixation step, and T3 is a temperature of the first liquid composition aggregated layer and the second liquid composition aggregated layer upon the separation in the second fixation step.

2. The ink jet recording method according to claim 1 , wherein the second fixation step comprises, after performing the heating and pressurization by using the second fixing unit, cooling the recording medium to a temperature not higher than the minimum film forming temperature (MFT2) of the second liquid composition aggregated layer while contact of the second fixing unit with the recording medium is maintained to separate the recording medium from the second fixing unit.

3. The ink jet recording method according to claim 1 , wherein at least one of the first liquid composition and the second liquid composition contains a coloring material.

4. The ink jet recording method according to claim 1 , wherein the first liquid composition contains a coloring material.

5. The ink jet recording method according to claim 1 , wherein the second liquid composition contains no coloring material.

6. An ink jet recording method comprising:
a step of forming a first liquid composition aggregated layer by applying a first liquid composition containing a resin to an intermediate transfer member by using an ink jet recording head;
a step of forming a second liquid composition aggregated layer by applying a second liquid composition containing a resin to the intermediate transfer member by using an ink jet recording head;
a transfer step of transferring the first liquid composition aggregated layer and the second liquid composition aggregated layer on the intermediate transfer member onto a recording medium;
a first fixation step of performing heating and pressurization of the recording medium on which the first liquid composition aggregated layer and the second liquid composition aggregated layer are formed by using a first fixing unit; and
a second fixation step,
wherein the second fixation step comprises performing heating and pressurization of the recording medium subjected to the first fixation step by using a second fixing unit followed by cooling the recording medium to separate the recording medium from the second fixing unit, and
wherein
MFT1>MFT2,  (2-1)

and
T1>MFT1≧T2>MFT2≧T3  (2-2)

are satisfied,
where MFT1 is a minimum film forming temperature of the first liquid composition aggregated layer, MFT2 is a minimum film forming temperature of the second liquid composition aggregated layer, T1 is a temperature of the first liquid composition aggregated layer and the second liquid composition aggregated layer upon the heating and pressurization in the first fixation step, T2 is a temperature of the first liquid composition aggregated layer and the second liquid composition aggregated layer upon the heating and pressurization in the second fixation step, and T3 is a temperature of the first liquid composition aggregated layer and the second liquid composition aggregated layer upon the separation in the second fixation step.

7. The ink jet recording method according to claim 6 , wherein the first fixation step is performed concurrently with the transfer step.

8. The ink jet recording method according to claim 6 , wherein the first fixation step is performed after the transfer step.

9. The ink jet recording method according to claim 6 , wherein the second fixation step comprises, after performing the heating and pressurization by using the second fixing unit, cooling the recording medium to a temperature not higher than the minimum film forming temperature (MFT2) of the second liquid composition aggregated layer while contact of the second fixing unit with the recording medium is maintained to separate the recording medium from the second fixing unit.

10. The ink jet recording method according to claim 6 , wherein the intermediate transfer member comprises a first intermediate transfer member and a second intermediate transfer member in contact with the first intermediate transfer member, and wherein the transfer step is a step of transferring the first liquid composition aggregated layer and the second liquid composition aggregated layer from the first intermediate transfer member onto the second intermediate transfer member and transferring the first liquid composition aggregated layer and the second liquid composition aggregated layer from the second intermediate transfer member onto the recording medium, a temperature of the second intermediate transfer member being higher than a temperature of the first intermediate transfer member.

11. The ink jet recording method according to claim 6 , wherein at least one of the first liquid composition aggregated layer and the second liquid composition aggregated layer is formed by using a liquid composition containing no coloring material, and the first liquid composition aggregated layer and the second liquid composition aggregated layer are formed on the intermediate transfer member in such a way that the liquid composition aggregated layer containing no coloring material becomes a surface of an image after transfer to the recording medium.

12. The ink jet recording method according to claim 11 , wherein the first liquid composition aggregated layer contains a coloring material.

13. The ink jet recording method according to claim 11 , wherein the first liquid composition aggregated layer is formed by using a liquid composition containing a coloring material and a liquid composition containing no coloring material.

14. The ink jet recording method according to claim 6 , comprising, before the step of forming the first liquid composition aggregated layer, a step of applying to the intermediate transfer member a reaction liquid capable of causing aggregation of a component in the first liquid composition or in the second liquid composition.

Assignees

• Canon Kk

Inventors

• Moriguchi Takuto
• Nishitani Eisuke
• Nakazawa Koichiro
• Otani Takumi
• Sekine Takayuki

Classifications

• B41M2205/10

  Post-imaging transfer of imaged layer; transfer of the whole imaged layer · CPC title

• B41J2/0057

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

• B41J2/01 Primary

  Ink jet · CPC title

• B41J11/002 Primary

  Curing or drying the ink on the copy materials, e.g. by heating or irradiating · CPC title

• B41M7/009 Primary

  using thermal means, e.g. infrared radiation, heat · CPC title