US20060225752A1 - Improved Cigarette Filters Comprising Compound Fibers - Google Patents
Improved Cigarette Filters Comprising Compound Fibers Download PDFInfo
- Publication number
- US20060225752A1 US20060225752A1 US11/278,703 US27870306A US2006225752A1 US 20060225752 A1 US20060225752 A1 US 20060225752A1 US 27870306 A US27870306 A US 27870306A US 2006225752 A1 US2006225752 A1 US 2006225752A1
- Authority
- US
- United States
- Prior art keywords
- cigarette filter
- fiber
- fibers
- compound
- 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.)
- Abandoned
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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
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
-
- 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
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
-
- 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
- A24D3/12—Use of materials for tobacco smoke filters of ion exchange materials
Definitions
- the present invention relates to overcoming the inadequacies of current filter technologies, providing a compound fiber filter rod that effectively adsorbs harmful substances in cigarette smoking, while preserves or improves the taste of the cigarette.
- the present invention's technical solution a compound fiber filter rod. It is cylindrical, with paper tube as the outer shell, filled with tow of interconnected compound fibers in parallel with the cylindrical axis. Said compound fiber is comprised of filter fiber core and adsorptive materials, which attach on the surface.
- the present invention has the following characteristics:
- FIG. 4 is a schematic representation showing the structure of the compound fiber.
- the adsorptive material has an affinity to the core. As shown, one side is hydrophilic ( 24 ), and the other side lipophilic ( 25 ). The lipophilic material attaches the adsorptive material to the core, while also completes the inter-fiber “welding”. In other words, this adsorptive material builds the construction of the compound filter rod.
- other materials can also be added to the fibers, such as porous absorbers, Chinese medicinal herb extracts, biochemical substances, and other strong adsorptive material against harmful substances in tobacco smoke.
Abstract
An improved cigarette filter material/method is provided, especially a compound fiber filter. Cylindrical, with paper tube, filled with tow of interconnected compound fibers in parallel with the cylindrical axis. Said compound fiber comprises a fiber core with a surface layer made from adsorptive materials on. The adsorptive material and the improved filter can effectively adsorb harmful substances from tobacco smoke, and not affect the cigarette taste or flavor.
Description
- This application claims the priority benefit of the Chinese patent application No. 200520011670.X filed on Apr. 7, 2005.
- The invention relates to cigarette filters, especially compound fiber cigarette filter rods.
- In recent years, due to the influence of World Health Organization and various anti-smoking movements, some developed countries have started limiting the component of tar, nicotine, and carbon monoxide, etc in the cigarettes. The raised health awareness of consumers also pushes manufacturers to produce cigarette products with lower levels of harmful substances, to reduce the damage to consumers.
- As shown in
FIG. 1 , cigarette filter rods are usually cylindrical rods of size 7.7×120 mm (D×L) or the scale thereabout. The filter rods are cut into segments of certain lengths and attached to the cigarette as a filter mechanism while smoking cigarettes. On the outside of the rod is paper. The paper tube is filled with tow of interconnected compound fibers in parallel with the cylindrical axis. The fibers are usually Cellulose acetate fiber, Polypropylene fiber, etc. Polypropylene fiber has an alkyl surface, and is chemically inactive. Cellulose acetate fiber has a mostly acetate surface, and is average in the level of chemical activity. These chemical characteristics limit the effectiveness of filter rods for removing harmful substances. - The present invention relates to overcoming the inadequacies of current filter technologies, providing a compound fiber filter rod that effectively adsorbs harmful substances in cigarette smoking, while preserves or improves the taste of the cigarette. The present invention's technical solution: a compound fiber filter rod. It is cylindrical, with paper tube as the outer shell, filled with tow of interconnected compound fibers in parallel with the cylindrical axis. Said compound fiber is comprised of filter fiber core and adsorptive materials, which attach on the surface. The present invention has the following characteristics:
- 1. The filter rod's physical attributes, such as circumference, roundness hardness, and draw resistance comply with filter rod requirements of a cigarette.
- 2. The filter rod has strong adsorptive filter materials with larger surface area, and it is effective in filtering tar, carbon monoxide, free radicals, and other harmful substances in cigarette smoke.
- 3. The filter rod does not negatively affect the taste of the cigarette.
- 4. The filter rod is non-toxic, tasteless, and high safety. The filter rod is safely produced in a clean environment with no unpleasant smells.
-
FIG. 1 is a perspective view of the cigarette filter rod. -
FIG. 2 is a cross section view of the cigarette filter rod. -
FIG. 3 is an enlarged view of part A inFIG. 2 . -
FIG. 4 is a schematic representation showing the structure of the compound fiber. -
FIG. 5 is a schematic representation showing the adsorptive material. - As shown in the
FIG. 2 the present invention has an outer shell paper tube (1). The paper tube (1) is filled with tow of compound fibers (2) in parallel with the cylindrical axis. The fibers are interconnected (3) to form a filter rod with high permeability. - The compound fibers within the paper tube have the total count of 9000 or greater. Optimally, 12000 or greater.
- As shown in
FIG. 4 , said compound fiber (2) comprises a core (21) and a surface layer (22). The core (21) is generally cigarette filter fibers, such as polypropylene fiber, cellulose acetate fiber, etc. The surface layer (22) comprises adsorptive material(s). The surface is rich in ion exchange groups and bases. - The core (21) generally has a diameter of 20 μm or thinner (≦20 μm) and the surface layer 0.5 μm or greater (≧0.5 μm).
- As shown in
FIG. 5 , the adsorptive material has an affinity to the core. As shown, one side is hydrophilic (24), and the other side lipophilic (25). The lipophilic material attaches the adsorptive material to the core, while also completes the inter-fiber “welding”. In other words, this adsorptive material builds the construction of the compound filter rod. To increase the compound fiber filter rod's effectiveness in reducing tar and other harmful substances, other materials can also be added to the fibers, such as porous absorbers, Chinese medicinal herb extracts, biochemical substances, and other strong adsorptive material against harmful substances in tobacco smoke. - Although the description above contains many specificities, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention. Thus the scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.
Claims (12)
1. A cigarette filter comprising a paper tube; compound fibers which is filled in said tube in parallel with the axis of said tube; said compound fibers being interconnected to form the filter having high permeability.
2. The cigarette filter of claim 1 , wherein said compound fiber Comprises a fiber core and a surface layer made from adsorptive materials.
3. The cigarette filter of claim 2 , wherein the diameter of said fiber Core is 20 μm or thinner (≦20 μm), and the thickness of said surface layer is 0.5 μm or greater (≧0.5 μm).
4. The cigarette filter of claim 1 , wherein the total count of said fibers is greater than 9000.
5. The cigarette filter of claim 2 , wherein the total count of fibers is greater than 9000.
6. The cigarette filter of claim 1 , wherein the total count of fibers is greater than 12000.
7. The cigarette filter rod of claim 2 , wherein the total count of fibers within the paper tube is greater than 12000.
8. The cigarette filter of claim 2 , wherein said core is polypropylene fiber or cellulose acetate fiber.
9. The cigarette filter of claim 2 , wherein said adsorptive material has an affinity to said core, its one side is hydrophilic, and the other side is lipophilic which attaches said adsorptive material to said core.
10. The cigarette filter of claim 9 , wherein said adsorptive materials are rich in ion exchange groups and bases.
11. The cigarette filter of claim 1 , wherein said compound fiber is covered with porous adsorptive material, or herbal extracts, or biochemical substances, or other strong adsorptive material against harmful substances in tobacco smoke.
12. The cigarette filter of claim 2 , wherein the fiber is covered with porous adsorptive material, or herbal extracts, or biochemical substances, or other strong adsorptive material against harmful substances in tobacco smoke.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/901,359 US20110030708A1 (en) | 2005-04-07 | 2010-10-08 | Absorptive Polymer, Compound Fiber and Cigarette Filter Rod Made of Compound Fiber |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200520011670XU CN2730151Y (en) | 2005-04-07 | 2005-04-07 | Filter-tip of cigarette made of composite fiber |
CN200520011670.X | 2005-04-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/901,359 Continuation-In-Part US20110030708A1 (en) | 2005-04-07 | 2010-10-08 | Absorptive Polymer, Compound Fiber and Cigarette Filter Rod Made of Compound Fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060225752A1 true US20060225752A1 (en) | 2006-10-12 |
Family
ID=35050501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/278,703 Abandoned US20060225752A1 (en) | 2005-04-07 | 2006-04-05 | Improved Cigarette Filters Comprising Compound Fibers |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060225752A1 (en) |
CN (1) | CN2730151Y (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104939315A (en) * | 2015-06-23 | 2015-09-30 | 滁州卷烟材料厂 | Health-care cigarette filter tip for refreshing and consciousness restoration and preparing method thereof |
CN104939313A (en) * | 2015-06-24 | 2015-09-30 | 滁州卷烟材料厂 | Nerve-calming brain-strengthening healthcare cigarette filter tip and preparation method thereof |
CN104939312A (en) * | 2015-06-23 | 2015-09-30 | 滁州卷烟材料厂 | Health-care cigarette filter tip capable of enhancing immune function and manufacturing method thereof |
CN105146749A (en) * | 2015-06-23 | 2015-12-16 | 滁州卷烟材料厂 | Anti-senile fitness cigarette filter and preparation method thereof |
CN106539124A (en) * | 2016-10-20 | 2017-03-29 | 云南中烟工业有限责任公司 | A kind of cigarette filter tip additive and preparation method thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9119419B2 (en) * | 2012-10-10 | 2015-09-01 | R.J. Reynolds Tobacco Company | Filter material for a filter element of a smoking article, and associated system and method |
CN105124755A (en) * | 2015-06-23 | 2015-12-09 | 滁州卷烟材料厂 | Cigarette filter with sleep improving efficacy and production method thereof |
CN105124756A (en) * | 2015-06-23 | 2015-12-09 | 滁州卷烟材料厂 | Pharynax-clearing throat-benefiting healthcare cigarette filter and production method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4700723A (en) * | 1983-03-10 | 1987-10-20 | Toray Industries, Inc. | Tobacco filter and fibrous ion exchange resin |
US5620641A (en) * | 1995-06-06 | 1997-04-15 | American Filtrona Corporation | Polyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom |
-
2005
- 2005-04-07 CN CNU200520011670XU patent/CN2730151Y/en not_active Expired - Fee Related
-
2006
- 2006-04-05 US US11/278,703 patent/US20060225752A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4700723A (en) * | 1983-03-10 | 1987-10-20 | Toray Industries, Inc. | Tobacco filter and fibrous ion exchange resin |
US5620641A (en) * | 1995-06-06 | 1997-04-15 | American Filtrona Corporation | Polyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104939315A (en) * | 2015-06-23 | 2015-09-30 | 滁州卷烟材料厂 | Health-care cigarette filter tip for refreshing and consciousness restoration and preparing method thereof |
CN104939312A (en) * | 2015-06-23 | 2015-09-30 | 滁州卷烟材料厂 | Health-care cigarette filter tip capable of enhancing immune function and manufacturing method thereof |
CN105146749A (en) * | 2015-06-23 | 2015-12-16 | 滁州卷烟材料厂 | Anti-senile fitness cigarette filter and preparation method thereof |
CN104939313A (en) * | 2015-06-24 | 2015-09-30 | 滁州卷烟材料厂 | Nerve-calming brain-strengthening healthcare cigarette filter tip and preparation method thereof |
CN106539124A (en) * | 2016-10-20 | 2017-03-29 | 云南中烟工业有限责任公司 | A kind of cigarette filter tip additive and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN2730151Y (en) | 2005-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BRIGHT CHEMICAL SCIENCE & TECHNOLOGY DEVELOPMENT C Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CUI, JIANMIN;ZHANG, RONGBIAO;XU, JIANQIANG;AND OTHERS;REEL/FRAME:017426/0509 Effective date: 20060403 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |