Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D39/00—Filtering material for liquid or gaseous fluids
  • B01D39/14—Other self-supporting filtering material ; Other filtering material
  • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
  • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof

Applications Claiming Priority (1)

Publications (1)

Family

ID=9815013

Family Applications (1)

Country Status (5)

Families Citing this family (2)

• 1974
  • 1974-02-13 GB GB646774A patent/GB1488873A/en not_active Expired
• 1975
  • 1975-02-13 DE DE19752505899 patent/DE2505899A1/de not_active Withdrawn
  • 1975-02-13 BE BE153325A patent/BE825491A/xx unknown
  • 1975-02-13 IT IT6737475A patent/IT1030133B/it active
  • 1975-02-13 FR FR7504469A patent/FR2260372B1/fr not_active Expired

Also Published As

Similar Documents