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Method for preparing composite membrane of high polymer Nano materal

A nano-material and composite film technology, which is applied in the production of silver halide photosensitive materials, can solve the problem of affecting the photosensitive performance of silver halide photosensitive materials, reducing the permeability of the protective film to the developing solution, and the formula of the protective film cannot fundamentally improve the silver halide photosensitive material. Physical properties and other issues, to achieve good anti-adhesion and anti-smudge performance, improved scratch resistance, high electrical conductivity

Inactive Publication Date: 2004-10-27
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the transitional hard film will reduce the permeability of the protective film to the developer and affect the photosensitive performance of the silver halide photosensitive material.
[0004] Therefore, the existing pellicle formulations cannot fundamentally improve some physical properties of silver halide photosensitive materials, such as: reducing the viscosity of the pellicle, improving the strength of the pellicle, increasing the antistatic property of the pellicle, etc.

Method used

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Embodiment Construction

[0011] In the present invention, a certain pH value is controlled in a 0.1% to 15% high polymer aqueous solution, and the prepared nano-scale particles with a diameter of 1 to 100 nm are added under the condition of stirring, and after being fully dispersed for a certain period of time, Then add conventional additives, such as: preservatives, surfactants, metal complexing agents, hardening agents, etc.; if necessary, other polymer materials can also be added to the protective film solution. The polymer nanomaterial composite solution (coating solution for protective film) is prepared, and then the prepared coating solution is coated on the silver halide photosensitive emulsion layer or the anti-halation layer on the back of the film to form a film protective film.

[0012] Best among all the above mentioned nanoparticles is the use of silica and its composite particles. The preparation of silicon dioxide can use any method mentioned above; the present invention also provides a...

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Abstract

A composite film used as the protecting film of photosensitive silver halide material is prepared from high-molecular material and nanoparticles chosen from silicon oxide, aluminium oxide and zinc oxide. Its advantage are high water and light penetrability, low surface viscosity, good antistatic action, and high strength.

Description

Technical field: [0001] The invention belongs to the production field of silver halide photosensitive materials, and relates to a method for preparing a composite film used for protection in the production of silver halide photosensitive materials. Background technique: [0002] In the production of silver halide photosensitive materials (including: printing film, X-ray film, film, photographic paper, etc.), the uppermost layer of the film is generally coated with a protective protective film. The main function of the protective film is to prevent The photosensitive emulsion in the lower layer rubs against other substances during use to cause fog. At the same time, the protective film also prevents the adhesion between the films and prevents the films from generating static electricity during use. Because gelatin has better permeability after film formation, gelatin is used as the main film-former in protective films, and some other polymer compounds and microspheres of inor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08K3/22G03C1/76
Inventor 谢海泉党元林张富新
Owner NANYANG NORMAL UNIV
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