GB1369437A - Cigarette filters - Google Patents

Cigarette filters

Info

Publication number
GB1369437A
GB1369437A GB5327470A GB5327470A GB1369437A GB 1369437 A GB1369437 A GB 1369437A GB 5327470 A GB5327470 A GB 5327470A GB 5327470 A GB5327470 A GB 5327470A GB 1369437 A GB1369437 A GB 1369437A
Authority
GB
United Kingdom
Prior art keywords
web
rod
grooves
collagen
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5327470A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mpac Group PLC
Original Assignee
Molins Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Molins Ltd filed Critical Molins Ltd
Priority to GB5327470A priority Critical patent/GB1369437A/en
Priority to US00195177A priority patent/US3735672A/en
Priority to FR7139690A priority patent/FR2113599A5/fr
Priority to IT70645/71A priority patent/IT954212B/en
Priority to DE2155667A priority patent/DE2155667C3/en
Priority to JP8937871A priority patent/JPS5414199B1/ja
Publication of GB1369437A publication Critical patent/GB1369437A/en
Expired legal-status Critical Current

Links

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
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0283—Manufacture of tobacco smoke filters for filters with special features with means for a non-axial smoke flow
    • 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
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1026—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina with slitting or removal of material at reshaping area prior to reshaping

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

1369437 Tobacco-smoke filters MOLINS Ltd 8 Nov 1971 [9 Nov 1970] 53274/70 Heading A2C A cross-flow filter element for a cigarette or similar article comprises a rod 2 formed with substantially axial grooves 4 separated by rib portions 6 which contact one another at the ends 6A of the rod 2 so as to close alternate grooves 4 at opposite ends of the rod 2. The rod 2 may be made by first folding inwards circumferentially spaced regions of a continuous tube by means of die wheels and then pinching together alternate grooves by means of co-operating wheels having holes which enter the grooves at regular intervals. The continuous tube may be formed by extruding filter material into a tubular section, but is preferably formed by bringing together the edges of a continuous web of filter material, especially a web which has been formed with longitudinal grooves along which it is to be subsequently folded. The formed rod 2 is preferably enclosed in a tubular wrapping before being cut at regular intervals to form individual filters, but it may be cut without wrapping and the elements so formed inserted into plastics mouthpieces. Suitable filter materials include continuous crimped cellulose acetate fibres with a bonding agent in the form of a thermoplastic resin or a volatile solvent, which agent can be activated or set by heat to hold the filter material in its final shape. Alternatively, a web comprising one or more layers of filter paper or a web which includes one or more layers of granular, powdery or other particulate material (such as collagen or collagen-filled sheet material) sandwiched between layers of paper or other sheet material, or a web comprising a mixture of cellulose fibres and collagen, may be used.
GB5327470A 1970-11-09 1970-11-09 Cigarette filters Expired GB1369437A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB5327470A GB1369437A (en) 1970-11-09 1970-11-09 Cigarette filters
US00195177A US3735672A (en) 1970-11-09 1971-11-03 Cigarette filters
FR7139690A FR2113599A5 (en) 1970-11-09 1971-11-05
IT70645/71A IT954212B (en) 1970-11-09 1971-11-06 IMPROVEMENT OF CIGARETTE FILTERS
DE2155667A DE2155667C3 (en) 1970-11-09 1971-11-09 QuerstromfUter and method and device for its production
JP8937871A JPS5414199B1 (en) 1970-11-09 1971-11-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5327470A GB1369437A (en) 1970-11-09 1970-11-09 Cigarette filters

Publications (1)

Publication Number Publication Date
GB1369437A true GB1369437A (en) 1974-10-09

Family

ID=10467222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5327470A Expired GB1369437A (en) 1970-11-09 1970-11-09 Cigarette filters

Country Status (6)

Country Link
US (1) US3735672A (en)
JP (1) JPS5414199B1 (en)
DE (1) DE2155667C3 (en)
FR (1) FR2113599A5 (en)
GB (1) GB1369437A (en)
IT (1) IT954212B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805682A (en) * 1970-12-24 1974-04-23 American Filtrona Corp Method of making tobacco smoke filters
US3826177A (en) * 1972-09-20 1974-07-30 American Filtrona Corp Apparatus for making filter means
US4007668A (en) * 1975-03-28 1977-02-15 American Filtrona Corporation Crimper assembly
CH608176A5 (en) * 1976-10-05 1978-12-29 Baumgartner Papiers Sa
US4388934A (en) * 1980-06-18 1983-06-21 British-American Tobacco Company Limited Filters
US4492238A (en) * 1981-09-30 1985-01-08 Philip Morris Incorporated Method and apparatus for production of smoke filter components
US5044381A (en) * 1990-04-02 1991-09-03 Thomas Annie R Closed cigarette filter
DE4041433A1 (en) * 1990-12-21 1992-06-25 Siemens Ag Multiphase sample mixt. prepn. appts. - includes back-flushable cross-flow filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128680A (en) * 1960-03-15 1964-04-14 Philip Morris Inc Method of forming cigarette filter
US3205791A (en) * 1963-05-22 1965-09-14 Brown & Williamson Tobacco Mouthpieces for cigarettes
US3383449A (en) * 1964-10-01 1968-05-14 Muller Paul Adolf Method for producing an endless filter string
US3638661A (en) * 1969-11-13 1972-02-01 Reynolds Tobacco Co R A method of forming filter cigarettes

Also Published As

Publication number Publication date
IT954212B (en) 1973-08-30
DE2155667B2 (en) 1978-09-28
DE2155667C3 (en) 1979-05-17
JPS5414199B1 (en) 1979-06-05
US3735672A (en) 1973-05-29
FR2113599A5 (en) 1972-06-23
DE2155667A1 (en) 1972-06-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee