Filtering material and method of producing the same

Details Filtering material and method of producing the same Filtering material and method of producing the same

1995-04-10

1997-01-28

Dudash, Diana

Coating processes

Foraminous product produced

Filter, sponge, or foam

427202, 427421, 4274344, B05D 500, B05D 136, B05D 140

Patent

active

055976190

ABSTRACT:
A filtering material employable as a basic material for a sanitary mask, a deodorizing filter or the like includes as essential components calcium phosphate particles, a water soluble glucan and a sheet-shaped raw material, and the calcium phosphate particles are caused to adhere to the sheet-shaped raw material with the aid of the water soluble glucan serving as a binder. A method of a filtering material is typically practiced by way of a first step of dispersing a predetermined quantity of calcium phosphate particles and a predetermined quantity of water soluble glucan in water to prepare an aqueous treatment solution, a second step of dipping a sheet-shaped raw material in the aqueous treatment solution and taking up the sheet-shaped raw material coated with the aqueous treatment solution and a third step of drying the sheet-shaped raw material coated with the aqueous treatment solution. The method of producing a filtering material may be practiced by way of a first step of dissolving a predetermined quantity of water soluble glucan in water to prepare an aqueous preliminary treatment solution, a second step of adhering the aqueous preliminary treatment solution to a sheet-shaped raw material, a third step of adhering calcium phosphate particles to the sheet-shaped raw material before the sheet-shaped raw material having the aqueous preliminary treatment solution adhering thereto is completely dried, and a fourth step of drying the sheet-shaped raw material.

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