FILTER MATERIAL FOR TOBACCO SMOKE, FIBROUS CELLULOSE ESTER AND ITS PRODUCTION

Title:

FILTER MATERIAL FOR TOBACCO SMOKE, FIBROUS CELLULOSE ESTER AND ITS PRODUCTION

Document Type and Number:

Japanese Patent JP3420359

Kind Code:

B2

Abstract:

PURPOSE: To obtain a filter material for tobacco smoke free from losing tobacco taste, excellent in wet disintegration and capable of reducing environmental pullution.
CONSTITUTION: This filter material for tobacco smoke contains fibrillated fibrous cellulose ester. The fibrous cellulose ester has an average diameter of 15-250μm and a BET specific surface area of 0.5-4.5m2/g. The content of cellulose ester in the material is e.g. ≥20wt.%. The cellulose ester fiber is obtained e.g. by extruding a cellulose ester solution through a nozzle into a poor solvent for the cellulose ester. The cellulose fiber is fibrillated by shearing force generated in this process. The filter material can be used as a tobacco filter in e.g. fiber-, web- or sheet-form. An obtained taste of tobacco is good and the filter material is excellent in wet disintegration.

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Inventors:

Hiroyuki Matsumura
Shu Shimamoto
Toru Shibata

Application Number:

JP28258494A

Publication Date:

June 23, 2003

Filing Date:

October 21, 1994

Export Citation:

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Assignee:

Daicel Chemical Industry Co., Ltd.

International Classes:

A24D3/02; A24D3/04; A24D3/10; C08L101/16; D01D5/06; D01D5/40; D01F2/28; (IPC1-7): D01F2/28; A24D3/02; A24D3/04; A24D3/10

Domestic Patent References:

JP497518A
JP5345468A
JP4263610A

Attorney, Agent or Firm:

Mitsuo Kuwata

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