Title:
TOBACCO FILTER
Document Type and Number:
Japanese Patent JPH07170962
Kind Code:
A
Abstract:
PURPOSE: To obtain the entitled filter having satisfactory filter characteristic, which has a cell-state inner structure and a stripe for at least one of both inner/outer faces and is formed from a bunch of the skinless hollow fibers of cellulose acetate which has a specified specific surface area. CONSTITUTION: This tobacco filter is provided with the cell-state inner structure, is provided with a surface with a stripe on at least one side and is formed from the bunch of the skinless translucent hollow fibers of cellulose acetate with the specific surface of at least about 0.8 m<2> per a gram and is effective for absorb-removing concentrating organic steam from a smoke flow. The filter is obtained by extruding polymer spinning solution liquid 5 into a spinning solution bath through a ring 13 at a ring middle pipe jet to inject a fluid for forming a lumen 4 through a pipe 3 and keeping the rate of organic solvent or hydrolyzing agent in a water coagulation bath and optionally a water core forming liquid to be under a maximum density varied by a temperature.
Inventors:
KORIN ERU BURAUN
Application Number:
JP24575294A
Publication Date:
July 11, 1995
Filing Date:
September 05, 1994
Export Citation:
Assignee:
HOECHST CELANESE CORP
International Classes:
A24D3/08; A24D3/10; B01D53/34; B01D53/81; B01D63/00; B01D71/06; D01D5/06; D01D5/24; A24D3/04; D01D5/247; D01D5/253; D01F2/28; (IPC1-7): A24D3/10; A24D3/04; A24D3/08; B01D53/34; B01D53/81; D01D5/06; D01D5/247
Attorney, Agent or Firm:
Takehiko Saito
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