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Image forming method and image recording material

A technology for images and recording media, applied in the direction of copying/marking methods, inks, coatings, etc., can solve the problems of bending or wobbling, deterioration of landing accuracy, and non-spraying of ink, and achieve the effect of high productivity

Active Publication Date: 2016-03-02
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the recording medium is conveyed at high speed, the lightweight and thin-layered recording medium may sometimes bend or wobble, and the floating recording medium will easily come into contact with the head during conveyance, causing the problem of ink not ejecting.
The problem of contact between the recording medium and the head can be solved by increasing the distance between the recording medium and the head. When small droplets are ejected, landing accuracy deteriorates and image degradation occurs

Method used

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  • Image forming method and image recording material
  • Image forming method and image recording material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0265] According to the recipe of ink composition 1 below, a magenta (M) ink composition was prepared by the method shown below.

[0266] A solution of a water-soluble organic solvent, a water-soluble polymer, a surfactant, and water was added to the pigment dispersion being stirred, followed by adding polymer fine particles and stirring for 30 minutes to prepare a desired ink composition.

[0267] (ink composition 1)

[0268] ・Projet Magenta APD1000 (trade name, manufactured by FUJIFILMI Imaging Colorants Limited, magenta pigment dispersion, pigment concentration: 14%)... 28.57 parts by mass

[0269] 2-Pyrrolidone (manufactured by Tokyo Chemical Industry Co., Ltd.: water-soluble organic solvent, SP value: 29.12) ... 16 parts by mass

[0270] ·Polyethylene glycol 8000 * (manufactured by MP Biomedicals, LLC.: water-soluble polymer, Mn: 8000, SP value: 20.62) ... 8.1 parts by mass

[0271] * In Table 1~2, it is recorded as "PEG8000"

[0272] Surfynol 104PG50 (trade name, manuf...

Embodiment 2

[0315] An ink was prepared in the same manner as in Example 1 except that the composition of the ink was changed to the ink composition 2 shown below, and the same evaluation was performed.

[0316] (ink composition 2)

[0317] ・Projet Magenta APD1000 (trade name, manufactured by FUJIFILMI Imaging Colorants Limited, magenta pigment dispersion, pigment concentration: 14%)... 28.57 parts by mass

[0318] ·Diethylene glycol * (manufactured by Tokyo Chemical Industry Co., Ltd., water-soluble organic solvent SP value: 25.5) ... 16 parts by mass

[0319] * In Table 1~2, it is recorded as "DEG"

[0320] · Polyethylene glycol 8000 (manufactured by MP Biomedicals, LLC., water-soluble polymer, Mn: 8000, SP value: 20.62) ... 7.6 parts by mass

[0321] Surfactant (Surfynol 104PG50, manufactured by Air Products and Chemicals, Inc., number average molecular weight: 226.36, HLB4) ... 0.42 parts by mass

[0322] · Polyurethane microparticles (WBR-2101, manufactured by TAISEIFINE CHEMICAL ...

Embodiment 3

[0325]An ink was prepared in the same manner as in Example 1 except that the composition of the ink was changed to the ink composition 3 shown below, and the same evaluation was performed.

[0326] (ink composition 3)

[0327] ・Projet Magenta APD1000 (trade name, manufactured by FUJIFILMI Imaging Colorants Limited, magenta pigment dispersion, pigment concentration: 14%)... 28.57 parts by mass

[0328] ·2-Methyl-1,3-propanediol * (Tokyo Chemical Industry Co., Ltd., water-soluble organic solvent, SP value: 24.17) ... 16 parts by mass

[0329] * In Table 1~2, it is recorded as "MPDO"

[0330] · Polyethylene glycol 8000 (manufactured by MP Biomedicals, LLC., water-soluble polymer, Mn: 8000, SP value: 20.62) ... 6.6 parts by mass

[0331] Surfactant (trade name: Surfynol 104PG50, manufactured by Air Products and Chemicals, Inc., number average molecular weight: 226.36, HLB4) ... 0.34 parts by mass

[0332] · Polyurethane microparticles (WBR-2101, manufactured by TAISEIFINE CHEM...

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Abstract

An image forming method wherein an ink composition, containing a water-soluble polymer having a number average molecular weight of 1000 or more, a water-soluble organic solvent, and a surfactant having an HLB value that falls within the range of 3-12 and which has a number average molecular weight of less than 1000, and having a viscosity at 30 DEG C that falls within the range of 10mPa.s to 14mPa.s, is discharged onto a recording medium in droplets of 60pL to 120pL using an inkjet head to form an image.

Description

technical field [0001] The present invention relates to an image forming method and an image record. Background technique [0002] In the past, analog printing such as flexographic printing was performed on non-absorbent or low-absorbent recording media such as glass, metal, and plastic. Digital printing based on inkjet printing. [0003] Rough classifications of printing methods suitable for inkjet printing include a multi-pass method and a single-pass method. The former has the advantage of image quality that image streaks are less conspicuous even if the nozzles of the head do not spray because the head scans the substrate twice or more, but has the disadvantages of slow printing speed and low productivity. [0004] The latter has the advantages of high printing speed and high productivity because it is printed with one scan, but it is prone to image deterioration when the "non-discharging phenomenon" that prevents ink from being ejected occurs in the nozzles of the hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41J2/01C09D11/30
CPCC09D11/10C09D11/322C09D11/30B41J2/01C09D175/04
Inventor 大元诚
Owner FUJIFILM CORP
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