FILTER OCH FOERFARANDE FOER DESS FRAMSTAELLNING

A smoke-filter rod comprises a body of rod form consisting or having as at least major constituent a thermoplastics cellulose acetate or polypropylene smoke-filtration material, preferably of a fibrous or filamentary nature, and wrapped in a plugwrap comprising at least 50%, suitably at least 90%, b...

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Bibliographic Details
Main Author HORSEWELL HENRY GEORGE
Format Patent
LanguageFinnish
Published 01.03.1981
Edition3
Subjects
CIGARETTES
CIGARS
HUMAN NECESSITIES
MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
MOUTHPIECES FOR CIGARS OR CIGARETTES
SMOKERS' REQUISITES
TOBACCO
TOBACCO SMOKE FILTERS
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Summary:A smoke-filter rod comprises a body of rod form consisting or having as at least major constituent a thermoplastics cellulose acetate or polypropylene smoke-filtration material, preferably of a fibrous or filamentary nature, and wrapped in a plugwrap comprising at least 50%, suitably at least 90%, by weight of fibres or filaments of, respectively, cellulose acetate or polypropylene material of substantially the same chemical identity as said major constituent of the filtration material, said plugwrap being bonded to said body and having a permeability for air of not less than 10,000 Coresta units. The bonding is by an agent which is a bonding agent for the material of said plugwrap and said filtration material, suitably triacetin in the case of cellulose acetate. Portions of such filter rod can be subjected to a hot-shaping process. For making such filter rod, a continuous tow or web of the smoke-filtration material may be impregnated with a bonding agent and gathered into a rod-form body and wrapped in continuous fibrous or filamentary plugwrap, whereby said plugwrap is bonded to said rod-form body. The rod formation and wrapping may be carried out by feeding the filtration material and plugwrap together to a garniture.
Bibliography:Application Number: FI19800002568