AIR FILTER, TOBACCO FILTER AND TOBACCO CIGARETTE PROVIDED WITH THE FILTER

PROBLEM TO BE SOLVED: To provide an air filter having a large specific surface necessary to enhance filterability, hardly generating the dust causing such a trouble as the deterioration of the working environment or the suspension of particles at the time of producing a filter plug, capable of effic...

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Bibliographische Detailangaben
Hauptverfasser:	SHINADA KATSUHIKO, HIROTA SHIGEYUKI, YAMADA TERUYUKI, MATSUMOTO SHIRUYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CIGARETTES CIGARS HUMAN NECESSITIES MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES MOUTHPIECES FOR CIGARS OR CIGARETTES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SMOKERS' REQUISITES TOBACCO TOBACCO SMOKE FILTERS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an air filter having a large specific surface necessary to enhance filterability, hardly generating the dust causing such a trouble as the deterioration of the working environment or the suspension of particles at the time of producing a filter plug, capable of efficiently removing the nicotine component and a tar component when used as the tobacco filter, with which the flavor of tobacco is obtained and without fiber pieces being dropped from the filter. SOLUTION: This air filter contains cellulose esters. When air is passed through the filter at 50 ml/sec, concerning the number concn. X of the fine particles suspended in the air measured according to JIS B9920, increase in the number concn. Xa-Xb satisfies an inequality Xa-Xb