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Method of making microporous membranes and image recording materials comprising the same

A technology of microporous membranes and compounds, applied in the field of microporous membranes, can solve problems such as difficult removal of non-volatile solvents

Inactive Publication Date: 2008-05-14
富士胶片欧洲制造公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-volatile solvents are difficult to remove and are therefore not preferred

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0089] Prepare coating composition:

[0090] A

38g epoxy diacrylate (CN132, supplied by Cray Valley) was dissolved in 14g isopropanol and

50.5g in water.

B

38g epoxy diacrylate (CN132, supplied by Cray Valley) and 0.6g photoinitiator

(Irgacure TM 2959, supplied by CIBA Specialty Chemicals) dissolved in 14 g of isopropanol and

49.9g in water.

C

Add 2 g of glycidyl methacrylate to an alkaline solution derived from bovine bone (MW 10 kiloDalton)

In 200 g of a 10% solution of pH 9 of the gel, the mixture was stirred at 40°C for 2 hours to induce

into the carbon-carbon double bond.

D

38g epoxy diacrylate (CN132, supplied by Cray Valley) and 0.6g photoinitiator

(Irgacure TM 2959, supplied by CIBA Specialty Chemicals) dissolved in 14 g of isopropanol and

32.4g in water. To this composition was added 5 g of solution C and 10 g of fluorosurfactant

(Zonyl TM FSN 100, supplied by Dupont) as a 3% solution...

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Abstract

The present invention relates to a process for making microporous membranes by curing compounds through radiation. The invention further relates to image recording materials, in which these microporous membranes are used. According to the present invention a microporous membrane is prepared by the steps of providing a curable compound solvent mixture, wherein the concentration of said curable compound is between 20 and 80 weight percent and wherein at least 30 weight percent of said solvent is water; applying said mixture to a support; curing said curable compound mixture by exposing to radiation, thereby causing phase separation between the crosslinked curable compound and the solvent; subjecting the resulting microporous membrane to a drying or washing step to remove said solvent; and optionally separating the support and the microporous membrane.

Description

technical field [0001] The present invention relates to microporous membranes obtained by radiation curing compounds, and to methods of making such membranes. The present invention also relates to image recording materials in which these microporous films are used. Background technique [0002] There are various methods for manufacturing existing recording media. Such media should be able to compete with conventional silver halide-based image recording systems in terms of properties such as image resolution, color reproducibility, color fastness, etc. A particular problem associated with recording materials coated with solvent-based colorants, such as inkjet recording media, is that of handling the solvent during or after coating the colorant. Important parameters relevant to this problem are solvent absorption speed and solvent absorption capacity. Failure to optimize these parameters will result in unwanted results such as smearing or smudging, balling, matting, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B01D67/00
CPCB41M1/04B41M1/10B41M5/5209B41M1/12Y10T428/249991Y10T428/249953B41M5/00B01D67/00
Inventor J·赫辛W·J·范巴克加濑晃
Owner 富士胶片欧洲制造公司
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