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Publication of BE670787ApublicationCriticalpatent/BE670787A/fr
A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
A24D3/02—Manufacture of tobacco smoke filters
A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
A24D3/0212—Applying additives to filter materials
A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers