Canon Kabushiki Kaisha

Muneyoshi Sunada

Hiroshi Asakawa

Takashi Sawada

Masanori Ito

Hitoshi Nagashima

Yoichi Takada

Hiroyuki Ogino

Tsuyoshi Santo

Hideki Takayama

Motoo Urawa

Mariko Suzuki

Hisao Kamo

Motoaki Sato

Yasuyuki Ishida

Satoko Ito

Satoko Kakumoto

Provided is an inkjet recording medium in which hydrated alumina and a sulfinic acid compound or thiosulfonic acid compound coexist in a pigment in an ink receiving layer, and which can prevent white-background yellowing during storage in a resin file holder or the like and ensure printing quality at the same time. The ink receiving layer of the inkjet recording medium contains the sulfinic acid compound or thiosulfonic acid compound, which functions to prevent yellowing, in a salt form or in a free form so as to be diffusible.

Article having microporous body part, production method of ink medium, diffusion method of sulfur-containing organic acid into microporous layer, production method of article having meicroporous body part, and inkjet recording medium produced therefrom

The invention provides a recording medium providing an image storage property over a prolonged period and satisfactory recording properties at the same time, and a producing method for securely realizing such characteristics. In incorporating a colorant deterioration preventing agent in an ink-receiving layer, the colorant deterioration preventing agent is dissolved in a solvent and is applied on the ink-receiving layer thereby forming a high concentration region containing the colorant deterioration preventing agent at a high concentration and a low concentration region containing the colorant deterioration preventing agent at a low concentration, with the high concentration region positioned closer to the recording surface.

Ink recording medium and production method therefor

Disclosed herein is an image forming process for forming an image-recorded article having a coating layer on at least a part of an image formed, which comprises the steps of providing a liquid composition containing a polymer, providing an image-recorded article formed on a recording medium by an ink-jet recording method, and applying the liquid composition to at least a part of an image of the recorded article to insolubilize the polymer contained in the liquid composition on the surface of the image, thereby forming the coating layer at a position to which the liquid composition has been applied, wherein the recording medium has a surface which insolubilizes the polymer.

Image forming process, image-recorded article, liquid composition and ink-jet recording apparatus

Disclosed herein is an image forming process for forming an image-recorded article having a coating layer on at least a part of an image formed, which includes the steps of providing a liquid composition containing a polymer, providing an image-recorded article formed on a recording medium by an ink-jet recording method, and applying the liquid composition to at least a part of an image of the recorded article to insolubilize the polymer contained in the liquid composition on the surface of the image, thereby forming the coating layer at a position to which the liquid composition has been applied, wherein the recording medium has a surface which insolubilizes the polymer.

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Tokyo, Japan

Muneyoshi Sunada