Ink composition, ink set, and image forming method

An ink composition, imaging method technology, applied in the direction of ink, copying/marking method, printing, etc., can solve the problems of reduced dot density, change, stripe generation, etc.

Active Publication Date: 2012-12-19
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon may result in a decrease in dot density and may cause defects such as streaks or unevenness in the image or changes in color reproduction areas, affecting image quality such as graininess or color tone of the image

Method used

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  • Ink composition, ink set, and image forming method
  • Ink composition, ink set, and image forming method
  • Ink composition, ink set, and image forming method

Examples

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Embodiment Construction

[0017] The ink composition, ink set and image forming method using them of the present invention are described in detail below.

[0018]

[0019] The ink composition of the present invention comprises: a pigment; self-dispersible resin particles comprising a hydrophilic constituent unit and a hydrophobic constituent unit; at least two nonionic surfactants comprising (a) an HLB of 15 to 19 A nonionic surfactant and (b) a nonionic surfactant having an HLB of 10 to less than 15; a water-soluble organic solvent; and water. The ink composition of the present invention further contains one or more other components such as a dispersant for a pigment, a wax, or a wetting agent, as required.

[0020] When preparing an aqueous ink containing a pigment as a colorant and also conventionally used resin particles such as latex as a resin component (in order to enhance the rub resistance of a formed image), for example, during storage, etc., the ink is exposed to temperatures higher than n...

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Abstract

An ink composition is disclosed which includes a pigment, self-dispersing resin particles including a hydrophilic constituent unit and a hydrophobic constituent unit, at least two nonionic surfactants including (a) a nonionic surfactant having an HLB of from 15 to 19 and (b) a nonionic surfactant having an HLB of from 10 to less than 15, a water-soluble organic solvent, and water. An ink set and an image forming method are also disclosed.

Description

technical field [0001] The invention relates to a water-based ink composition, an ink set and an imaging method. Background technique [0002] Since an image forming method using an inkjet method can record high-quality images on various recording media, for example, by ejecting ink droplets from nozzles provided on an inkjet head, such an image forming method is expected to be applied to a wide range of fields. . [0003] In the process of forming an image, in terms of the quality of the image, it is required that unevenness (such as streaky unevenness or color missing areas), and require the image itself to have strong scratch resistance. In addition, in order to achieve the high quality required for images, it is also important that the ejection characteristics when ink is ejected from the ejection head meet the requirements. [0004] For example, from the viewpoint of improving the strength of formed images and the like, there are cases where the ink has a resin compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10B41M5/00B41J2/01C09D11/00C09D11/30C09D11/322C09D11/324C09D11/326C09D11/38
CPCC09D11/54C09D11/38C09D11/326C09D11/40C09D11/322C09D11/30B41M5/0017
Inventor 西塔亮大元诚稻垣厚志配岛章光
Owner FUJIFILM CORP
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