Photographic paper coating material

A technology of coating material and photo paper, applied in the direction of photosensitive material substrate/auxiliary layer, etc., can solve the problems such as ink blurring easily, and achieve the effect of enhanced dispersion, no agglomeration, and good dispersion

Active Publication Date: 2009-10-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a kind of photo paper coating material in o

Method used

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  • Photographic paper coating material
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Example Embodiment

[0008] Specific embodiment 1: In this embodiment, the photo paper coating material consists of 0.5 to 10 parts by weight of polyhedral oligomeric silsesquioxane, 60 to 85 parts of polyvinyl alcohol emulsion, 0.5 to 2 parts of dispersant, 0.5 ~2 parts of water retaining agent and 0.01~0.3 parts of defoamer.

[0009] In this embodiment, the particle size of the polyhedral oligomeric silsesquioxane is 2 to 3 nm.

Example Embodiment

[0010] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the polyhedral oligosilsesquioxane is a polyhedral oligosilsesquioxane with a monofunctional cage structure, and the monofunctional group is hydrogen. , hydroxyl, chlorine, epoxy, isocyanate, amido, imide or amino. Others are the same as in the first embodiment.

[0011] The polyhedral oligomeric silsesquioxanes described in this embodiment are all produced by Bybrib plastics in the United States.

Example Embodiment

[0012] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the dispersant is composed of sodium polyacrylate and sodium methylene dinaphthalene sulfonate in a mass ratio of 1:1. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a photographic paper coating material, and relates to a material for a photographic paper coating. The material solves the problem that the prior photographic paper coating material easily generates ink diffusion phenomenon on the surface of the coating ink. The material consists of polyhedral oligomeric silsesquioxane, polyvinyl alcohol latex, a dispersing agent, a water retention agent and a defoaming agent. The photographic paper coating material obtained by the invention can be used as a photographic paper inkjet ribbon and a picture of the coating; through observation, the ribbon and the picture subjected to spraying and printing have high color saturation and lustrousness, good definition and no ink diffusion phenomenon; and after the material is subjected to heat preservation for one hour in an oven of 200 DEG C, heat preservation for seven days in an oven of 70 DEG C, or insolation for half a year under the sun, the saturation, the lustrousness and the definition of the ribbon and picture subjected to spraying and printing are unchanged, and no ink diffusion phenomenon generates. By testing of scanning electron microscope SEM, grains of the photographic paper coating material have uniform granular diameter, favorable dispersion and no aggregation phenomenon.

Description

technical field [0001] The present invention relates to a material for the coating of photographic paper. Background technique [0002] Cast Coating Photo Paper is the Cast Coating Photo Paper. Its coating is made of micron-sized silica. After special processing, the brightness and whiteness can reach the level of traditional photo paper. Although it has a waterproof coating, the base paper is the same base paper as swelling photo paper, so the overall waterproof performance is poor, and after printing a high-saturation picture, the coating surface is prone to ink smudges. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a photo paper coating material in order to solve the problem that ink halo phenomenon easily occurs on the coating surface of the existing photo paper coating material. [0004] The photo paper coating material of the present invention consists of 0.5 to 10 parts by weight of polyhedral oligomeric silses...

Claims

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Application Information

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IPC IPC(8): G03C1/79
Inventor 黄玉东刘丽白永平杨兴娟修志锋曹英杰王和
Owner HARBIN INST OF TECH
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