GB1420655A - Tobacco smoke filter - Google Patents
Tobacco smoke filterInfo
- Publication number
- GB1420655A GB1420655A GB4369273A GB4369273A GB1420655A GB 1420655 A GB1420655 A GB 1420655A GB 4369273 A GB4369273 A GB 4369273A GB 4369273 A GB4369273 A GB 4369273A GB 1420655 A GB1420655 A GB 1420655A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- filter
- wool
- filters
- tobacco
- 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
Links
- 235000002637 Nicotiana tabacum Nutrition 0.000 title abstract 4
- 239000000779 smoke Substances 0.000 title abstract 2
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 210000002268 wool Anatomy 0.000 abstract 4
- 241000208125 Nicotiana Species 0.000 abstract 3
- 229920002678 cellulose Polymers 0.000 abstract 2
- 239000001913 cellulose Substances 0.000 abstract 2
- 235000019504 cigarettes Nutrition 0.000 abstract 2
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000009960 carding Methods 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000004745 nonwoven fabric Substances 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 229920000058 polyacrylate Polymers 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 229920002689 polyvinyl acetate Polymers 0.000 abstract 1
- 239000011118 polyvinyl acetate Substances 0.000 abstract 1
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
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
- A24D3/06—Use of materials for tobacco smoke filters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
1420655 Tobacco filters ROTHMANS OF PALL MALL (AUSTRALIA) Ltd and LANTOR OF AUSTRALIA PTY Ltd 18 Sept 1973 [27 Sept 1972] 43692/73 Heading A2C [Also in Divisions D1 and D2] A tobacco smoke filter is produced from a bonded non-woven fabric comprising wool fibres, by folding the sheet about its longitudinal axis and compressing 1 - 1¢ inch length, 18-22 micron Merino wool may comprise 75-100% of the fibres the balance being cellulose acetate, cellulose, reconstituted cellulose, polyolefin, polyamide, polyethylene terephthalate or polyvinyl chloride-polyvinylacetate copolymer. The wool is scoured, carbonised, fully bleached by peroxide or perborate, optionally blended by carding and air laid to form a random fibre web. The web is passed through an aqueous dispersion of polyacrylate, acrylonitrile - butadiene copolymer or styrene-butadiene copolymer incorporating melamine-formaldehyde hardner to promote cross-linking. Excess polymer is removed and the web passed through a 250- 350‹F heating tunnel to dry the web and cure or cross-link the binder. The web is slit into 5 inch wide strips and each strip passes through the nip between heated ribbed rolls 6 to impart a quasicorrugation in longitudinal direction of the fabric. Pre-folder 8 then turns the edges of the strip upward and over towards the centre whilst the centre of the strip is raised. A cylindrical plug is then produced by trumpet 9 and heated condensing tube 10. The plug is then converted into wrapped filters in conventional apparatus. The wool filter may entirely replace the celluolse filter in a filtertipped cigarette (Fig. 2A, not shown), it may be sandwiched between the tobacco and the conventional filter (Fig. 2C, n.s.) or form the middle part of a three part filter (Fig. 2B, n.s.). The filters may also be used in pipes and cigarette holders.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPB060972 | 1972-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1420655A true GB1420655A (en) | 1976-01-07 |
Family
ID=3765370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4369273A Expired GB1420655A (en) | 1972-09-27 | 1973-09-18 | Tobacco smoke filter |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU464851B2 (en) |
| CA (1) | CA1024412A (en) |
| DE (1) | DE2348694A1 (en) |
| GB (1) | GB1420655A (en) |
| NL (1) | NL7313341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10064429B2 (en) | 2011-09-23 | 2018-09-04 | R.J. Reynolds Tobacco Company | Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses |
| EP3520636A1 (en) * | 2010-05-06 | 2019-08-07 | R. J. Reynolds Tobacco Company | Segmented smoking article |
-
1972
- 1972-09-27 AU AU60501/73A patent/AU464851B2/en not_active Expired
-
1973
- 1973-09-18 GB GB4369273A patent/GB1420655A/en not_active Expired
- 1973-09-18 CA CA181,339A patent/CA1024412A/en not_active Expired
- 1973-09-27 NL NL7313341A patent/NL7313341A/xx not_active Application Discontinuation
- 1973-09-27 DE DE19732348694 patent/DE2348694A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3520636A1 (en) * | 2010-05-06 | 2019-08-07 | R. J. Reynolds Tobacco Company | Segmented smoking article |
| US10064429B2 (en) | 2011-09-23 | 2018-09-04 | R.J. Reynolds Tobacco Company | Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses |
| EP2757910B1 (en) * | 2011-09-23 | 2018-11-28 | R. J. Reynolds Tobacco Company | Mixed fiber product for use in the manufacture of cigarette filter elements and related methods |
| EP3456212A1 (en) * | 2011-09-23 | 2019-03-20 | R. J. Reynolds Tobacco Company | Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7313341A (en) | 1974-03-29 |
| AU6050173A (en) | 1975-03-20 |
| DE2348694A1 (en) | 1974-04-11 |
| AU464851B2 (en) | 1975-09-11 |
| CA1024412A (en) | 1978-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |