IE35242L - Filtering material. - Google Patents
Filtering material.Info
- Publication number
- IE35242L IE35242L IE60871A IE60871A IE35242L IE 35242 L IE35242 L IE 35242L IE 60871 A IE60871 A IE 60871A IE 60871 A IE60871 A IE 60871A IE 35242 L IE35242 L IE 35242L
- Authority
- IE
- Ireland
- Prior art keywords
- web
- filters
- filter
- derivative
- treated
- Prior art date
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
- A24D3/0204—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
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
1355519 Tobacco-smoke filters CELANESE CORP 13 May 1971 [13 May 1970] 14707/71 Heading A2C [Also in Division D1] In the production of tobacco smoke filters, a polyolefine filamentary web 10 is drawn from a supply 12, treated with a film-forming organic derivative of cellulose at 16, dried at 18, leaving 10-40% of the derivative base on web plus derivative, on the web transversely stretched (to break up the film into adhering particles) by grooved rollers 22, patterned with straight, zig-zag or sinusoidal depressions by rolls 24, treated with a plasticiser at 26 and condensed into a filter rod at 28 which is chopped off into lengths at 30. The web may be made of polyethylene or polypropylene, of an intrinsic viscosity of from 0.4 to 1.25. The web may have a surface area per gram of 0.2-2.0 sq. metres. The filters may be used together with paper filters or cellulose acetate filter segments in a dual filter. The web may be sandwiched with other webs to form the filter.
[GB1355519A]
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE1848/74A IE35243B1 (en) | 1970-05-13 | 1971-05-13 | Production of non-woven material for tobacco smoke filters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3674670A | 1970-05-13 | 1970-05-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE35242L true IE35242L (en) | 1971-11-13 |
IE35242B1 IE35242B1 (en) | 1975-12-24 |
Family
ID=21890407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE60871A IE35242B1 (en) | 1970-05-13 | 1971-05-13 | Improvements relating to filtering material and cigarettes containing same |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT320499B (en) |
CA (1) | CA935346A (en) |
GB (1) | GB1355519A (en) |
IE (1) | IE35242B1 (en) |
MY (1) | MY7500020A (en) |
PH (1) | PH13601A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013209591A1 (en) * | 2013-05-23 | 2014-11-27 | Hauni Maschinenbau Ag | Material entry in a filter tow |
-
1971
- 1971-05-12 PH PH12460A patent/PH13601A/en unknown
- 1971-05-13 GB GB1470771A patent/GB1355519A/en not_active Expired
- 1971-05-13 AT AT414871A patent/AT320499B/en not_active IP Right Cessation
- 1971-05-13 CA CA112950A patent/CA935346A/en not_active Expired
- 1971-05-13 IE IE60871A patent/IE35242B1/en unknown
-
1975
- 1975-12-30 MY MY7500020A patent/MY7500020A/en unknown
Also Published As
Publication number | Publication date |
---|---|
AT320499B (en) | 1975-02-10 |
PH13601A (en) | 1980-08-05 |
IE35242B1 (en) | 1975-12-24 |
MY7500020A (en) | 1975-12-31 |
CA935346A (en) | 1973-10-16 |
GB1355519A (en) | 1974-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69009103T2 (en) | Non-woven fiber web for tobacco smoke filters. | |
US4007745A (en) | Filter | |
DE69814227T2 (en) | Wrapping for smoking articles to control the tendency of a smoking article to ignite without impairing the smoking properties | |
US3804695A (en) | Apparatus for making tobacco smoke filters | |
US4274914A (en) | Filter material | |
US4189511A (en) | Filter | |
DE1230702B (en) | Method and device for producing filters for tobacco smoke or other gases | |
US3800676A (en) | Filters | |
US4283186A (en) | Method of forming cigarette filter material | |
DE1407416A1 (en) | Device for manufacturing tobacco product filters | |
US3557801A (en) | Cigarette smoke filter material | |
US2768913A (en) | Cigarette filter tips from dextran | |
US3444863A (en) | Tobacco smoke filter | |
US3852007A (en) | Apparatus for making filters | |
GB969329A (en) | Improvements in and relating to the production of filter bodies | |
IE35242L (en) | Filtering material. | |
GB1194572A (en) | Improvements in Cigarettes | |
US3422176A (en) | Process for spinning filaments of nonuniform cross section | |
GB735175A (en) | Process of and apparatus for the manufacture of paper-like materials from thermoplastic synthetic materials | |
DE2744796A1 (en) | FILTER MATERIAL, ITS PRODUCTION AND USE | |
US3930077A (en) | Filters | |
GB1369437A (en) | Cigarette filters | |
GB1358255A (en) | Production of non-woven material for tobacco smoke filters | |
GB1045826A (en) | Improved filter for tobacco smoke and method of production of same | |
DE2123219A1 (en) | Method and device for manufacturing cigarette filters |