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Image forming method and image formed record

一种图像、记录介质的技术，应用在复制/标记方法、油墨、印刷等方向，能够解决不足以达到形成图像部分耐擦性、减小色彩混合、增强图像密度等问题，达到优异图像牢度、优异图像密度和色饱和度、少色彩洇色的效果

Inactive Publication Date: 2010-12-08
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The methods disclosed in the above patent documents are insufficient to achieve enhanced image density, reduced hairiness and reduced color mixing
In addition, the method is insufficient to achieve the abrasion resistance of the image forming portion

Method used

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  • Image forming method and image formed record
  • Image forming method and image formed record
  • Image forming method and image formed record

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0272] -Preparation of Polymer Microparticle Dispersion Liquid Containing Magenta Pigment-

[0273]

[0274] Fully replace the interior of a 1L flask equipped with a mechanical stirrer, a thermometer, a nitrogen inlet tube, a return tube and a dropping funnel with nitrogen, and then add 11.2 g of styrene, 2.8 g of acrylic acid, and 12.0 g of dodecyl methacrylate , 4.0 g of polyethylene glycol methacrylate, 4.0 g of styrene macromer and 0.4 g of mercaptoethanol were mixed in a flask, and its temperature was raised to 65° C.

[0275] Subsequently, 100.8g styrene, 25.2g acrylic acid, 108.0g lauryl methacrylate, 36.0g polyethylene glycol methacrylate, 60.0g hydroxyethyl methacrylate, 36.0g styrene A mixed solution of macromonomer, 3.6g mercaptoethanol, 2.4g azodimethylvaleronitrile and 18g methyl ethyl ketone was dropped into the flask. After the dropwise addition, a mixed solution of 0.8 g of azobismethylvaleronitrile and 18 g of methyl ethyl ketone was dropped into the flask ...

preparation Embodiment 2

[0279] -Preparation of Polymer Microparticle Dispersion Liquid Containing Cyan Pigment-

[0280] A polymer microparticle dispersion liquid containing a cyan pigment was prepared in the same manner as in Preparation Example 1, except that the pigment C.I. Pigment Red 122 in Preparation Example 1 was replaced with a phthalocyanine pigment (C.I. Pigment Blue 15:3).

[0281] The average particle diameter (D 50 ). The obtained polymer microparticles in the polymer microparticle dispersion containing the cyan pigment had an average particle diameter (D 50 ).

preparation Embodiment 3

[0283] -Preparation of Polymer Microparticle Dispersion Liquid Containing Yellow Pigment-

[0284] A polymer microparticle dispersion liquid containing a yellow pigment was prepared in the same manner as in Preparation Example 1, except that the pigment C.I. Pigment Red 122 in Preparation Example 1 was replaced with a monoazo yellow pigment (C.I. Pigment Yellow 74).

[0285] The average particle diameter (D 50 ). The polymer microparticles in the obtained polymer microparticle dispersion liquid containing a yellow pigment had an average particle diameter (D 50 ).

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PUM

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Abstract

An image forming method of the present invention including applying a pretreatment liquid to a recording medium, and discharging an inkjet recording ink dropwise according to an image signal to form an image on the recording medium on which the pretreatment liquid has been applied, wherein the recording medium is regular paper which has no coat layer, the pretreatment liquid contains a cationic polymer compound, a surfactant A, water and a water-soluble organic acid, and the inkjet recording ink contains a water-dispersible colorant, a water-soluble organic solvent, a surfactant B, a penetrating agent and water, and wherein the pretreatment liquid has a static surface tension of 20 mN / m to 30 mN / m.

Description

technical field [0001] The present invention relates to an image forming method using inkjet technology and a record for forming an image. Specifically, the present invention relates to an image forming method comprising applying a pretreatment liquid to the surface of plain paper that is not coated, and forming an image using an inkjet recording ink. The image-formed record obtained by the image forming method has excellent image quality, especially excellent image density and color saturation, and less color bleeding, hair and white spots and less smearing of image parts Adhesion (also known as excellent rub resistance). Background technique [0002] Recently, inkjet printers have rapidly gained widespread use because they can print on plain paper, are readily available in color, are small and inexpensive, and have relatively low running costs. [0003] On the other hand, the image forming method may cause image failure, typified by character hairs (hereinafter referred ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41J2/01
CPCB41J11/0015B41M5/0011B41M5/0017C09D11/54C09D11/322B41M5/0035B41J2/2107
Inventor 后藤宽羽桥尚史永井希世文
Owner RICOH KK
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