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GB1273418A - Filled continuous plastics rod such as plastics cigarette filter rod filled with a tow of cellulose acetate and method of forming same - Google Patents

Filled continuous plastics rod such as plastics cigarette filter rod filled with a tow of cellulose acetate and method of forming same

Info

Publication number
GB1273418A
GB1273418A GB31438/69A GB3143869A GB1273418A GB 1273418 A GB1273418 A GB 1273418A GB 31438/69 A GB31438/69 A GB 31438/69A GB 3143869 A GB3143869 A GB 3143869A GB 1273418 A GB1273418 A GB 1273418A
Authority
GB
United Kingdom
Prior art keywords
tube
tow
filled
plastics
rod
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
GB31438/69A
Inventor
R N Thomson
J S Osmalov
G L Mathe
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.)
Philip Morris USA Inc
Original Assignee
Philip Morris USA Inc
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 Philip Morris USA Inc filed Critical Philip Morris USA Inc
Publication of GB1273418A publication Critical patent/GB1273418A/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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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
    • A24D3/0237—Filter rod forming processes by extrusion

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Filtering Materials (AREA)

Abstract

1,273,418. Making filter elements. PHILIP MORRIS Inc. 20 June, 1969 [24 July, 1968], No. 31438/69. Headings B1D and BIT. [Also in Divisions A2, B5 and B6] Continuous filter rod particularly for cigarette filters but suitable also for filtering liquid or other gaseous media is produced by extruding a thermoplastic material such as polyethylene through a tubular die 28 to form a tube of greater diameter than the intended final diameter, advancing a fibrous tow 14 of filter material through a nozzle 38 so that it does not come immediately into contact with the hot extrudate, and subsequently contracting the tube in a portal gland 42 at the entrance to a cooling chamber 40. The tow, which may be of cellulose acetate, a polyalkene, polyethylene or paper, is treated with a plasticizer, e.g. triacetin, and may contain filtrant or flavourant particles, e.g. charcoal. It is partially compressed in a horn 26 to a cylindrical form of slightly larger diameter than the final internal diameter of the tube so as to be radially compressed as the tube is finally sized, the tow being bonded to the tube either as a result of the inner wall of the latter being still plastic, or by the plasticizer in the tow. The cooling chamber 40, which contains water and a succession of sizing plates 48-58 to provide progressive cooling and hardening of the tube, is followed by a puller unit 64 and cutter (not shown). The tube, which is kept in contact with the sizing plate apertures by the provision of vacuum in the chamber 40, may have a cylindrical or polygonal outer surface, or a surface with longitudinal flutings.
GB31438/69A 1968-07-24 1969-06-20 Filled continuous plastics rod such as plastics cigarette filter rod filled with a tow of cellulose acetate and method of forming same Expired GB1273418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74727968A 1968-07-24 1968-07-24

Publications (1)

Publication Number Publication Date
GB1273418A true GB1273418A (en) 1972-05-10

Family

ID=25004413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31438/69A Expired GB1273418A (en) 1968-07-24 1969-06-20 Filled continuous plastics rod such as plastics cigarette filter rod filled with a tow of cellulose acetate and method of forming same

Country Status (17)

Country Link
US (1) US3579623A (en)
JP (1) JPS5230740B1 (en)
AT (1) AT290363B (en)
BE (1) BE736417A (en)
BR (1) BR6910526D0 (en)
CH (1) CH508358A (en)
DE (1) DE1936429A1 (en)
DK (1) DK135404B (en)
ES (3) ES369272A1 (en)
FI (1) FI52014C (en)
FR (1) FR2014693A1 (en)
GB (1) GB1273418A (en)
IL (1) IL32460A (en)
IT (1) IT1035507B (en)
MY (1) MY7300241A (en)
NL (1) NL150998B (en)
SE (2) SE374261B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9107454B2 (en) 2009-12-21 2015-08-18 British American Tobacco (Investments) Limited Sheet filter materials with additives

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29674E (en) * 1970-07-17 1978-06-20 Molins Limited Preparing cigarette filters
US3661666A (en) * 1970-08-06 1972-05-09 Philip Morris Inc Method for making swab applicators
GB1347081A (en) * 1971-03-12 1974-02-13 British American Tobacco Co Production of tobacco-smoke filters
US3813199A (en) * 1971-03-23 1974-05-28 Ind Plastic Specialties Co Apparatus for producing trim strip assembly
US3813200A (en) * 1973-01-22 1974-05-28 Philip Morris Inc Jam prevention unit for extrusion process apparatus
JPS5143501B2 (en) * 1973-01-27 1976-11-22
ZA753729B (en) * 1974-07-26 1976-05-26 Philip Morris Inc Method and apparatus for twisting the strip material
US4035125A (en) * 1975-10-17 1977-07-12 Philip Morris Incorporated Jam prevention unit for extrusion process
DE2608455A1 (en) * 1976-03-01 1977-09-08 Windmoeller & Hoelscher METHOD AND DEVICE FOR COATING HOSES COMPOSED OF THERMOPLASTIC TUBE FABRIC WITH THERMOPLASTIC PLASTIC
US4206011A (en) * 1976-05-27 1980-06-03 Western Electric Company, Inc. Apparatus for insulating flexible conductors
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter
US4362172A (en) * 1980-12-01 1982-12-07 Brown & Williamson Tobacco Corporation Cigarette filter
AU559296B2 (en) * 1981-07-06 1987-03-05 Cigarette Components Limited Filter device
US4492238A (en) * 1981-09-30 1985-01-08 Philip Morris Incorporated Method and apparatus for production of smoke filter components
DE3345001C2 (en) * 1983-12-13 1986-06-12 H.F. & Ph.F. Reemtsma Gmbh & Co, 2000 Hamburg Cigarette with a ventilated hollow mouthpiece
US4623504A (en) * 1984-10-22 1986-11-18 Smith Larry F Method and apparatus for making post-tensioning tendons for concrete
US5027864A (en) * 1985-05-21 1991-07-02 Arnco Corporation Tubular apparatus for transmission cable
US4788088A (en) * 1985-10-04 1988-11-29 Kohl John O Apparatus and method of making a reinforced plastic laminate structure and products resulting therefrom
JPS6340764A (en) * 1986-08-02 1988-02-22 株式会社アクロス Flexible intermediate material for inorganic fiber reinforced carbon composite material and manufacture
US5087153A (en) * 1989-08-23 1992-02-11 Arnco Corporation Internally spiraled duct and method of installation
US5365951A (en) * 1990-08-24 1994-11-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5746230A (en) * 1990-08-24 1998-05-05 Philip Morris Incorporated Concentric smoking filter having discrete tow and web filter media
US5137781A (en) * 1991-03-22 1992-08-11 E. I. Du Pont De Nemours And Company Protected brittle fiber yarns
CA2481164A1 (en) * 2003-09-12 2005-03-12 D. David West Laminated composite and process of making same
PL220876B1 (en) * 2011-08-08 2016-01-29 Int Tobacco Machinery Poland Device for collecting the powdery substance in the tobacco industry equipment, a scraper for such equipment and a method for dosing of powdery substances
GB201608814D0 (en) * 2016-05-19 2016-07-06 British American Tobacco Co Filter rod and apparatus and method for filter rod manufacture
GB201608815D0 (en) * 2016-05-19 2016-07-06 British American Tobacco Co Filter rod and apparatus and method
HUE054552T2 (en) * 2017-03-27 2021-09-28 Philip Morris Products Sa Apparatus and method for forming filter rods
KR20200125614A (en) * 2018-03-08 2020-11-04 필립모리스 프로덕츠 에스.에이. Aerosol-generating article
CN112888323B (en) * 2018-10-08 2023-05-26 益升华过滤产品开发私人有限公司 Cooling element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9107454B2 (en) 2009-12-21 2015-08-18 British American Tobacco (Investments) Limited Sheet filter materials with additives

Also Published As

Publication number Publication date
IT1035507B (en) 1979-10-20
US3579623A (en) 1971-05-18
IL32460A (en) 1973-04-30
DE1936429A1 (en) 1970-05-21
BE736417A (en) 1969-12-31
FI52014C (en) 1977-06-10
ES166889Y (en) 1971-11-16
ES166889U (en) 1971-07-01
CH508358A (en) 1971-06-15
JPS5230740B1 (en) 1977-08-10
MY7300241A (en) 1973-12-31
IL32460A0 (en) 1969-08-27
FR2014693A1 (en) 1970-04-17
NL150998B (en) 1976-10-15
DK135404B (en) 1977-04-25
SE374262B (en) 1975-03-03
NL6909570A (en) 1970-01-27
ES166890Y (en) 1971-11-16
BR6910526D0 (en) 1973-01-30
AT290363B (en) 1971-05-25
ES166890U (en) 1971-07-01
FI52014B (en) 1977-02-28
DK135404C (en) 1977-10-10
SE374261B (en) 1975-03-03
ES369272A1 (en) 1971-07-16

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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