CN102028307A - Smoking filter and smoking article - Google Patents
Smoking filter and smoking article Download PDFInfo
- Publication number
- CN102028307A CN102028307A CN2010105256143A CN201010525614A CN102028307A CN 102028307 A CN102028307 A CN 102028307A CN 2010105256143 A CN2010105256143 A CN 2010105256143A CN 201010525614 A CN201010525614 A CN 201010525614A CN 102028307 A CN102028307 A CN 102028307A
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- Prior art keywords
- hydrotalcite
- acid
- based compound
- cigarette
- purposes
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Classifications
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- 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
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
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- 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
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
-
- 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
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Filtering Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A smoking filter containing a hydrotalcite compound having a layered structure wherein a large number of metal hydroxide octahedral layers are laminated on each other. Using this smoking filter, formaldehyde in the main smoke can be selectively eliminated.
Description
The application is to be that January 7, application number in 2003 are dividing an application of 03801974.4 Chinese patent application " cigarette filter and smoking article " applying date.
Technical field
The present invention relates to cigarette filter and smoking article.
Background technology
In the suction smoking article, in the mainstream smoke that is absorbed by the smoker, there are various chemical compositions.In these chemical compositions is that the low-grade aldehydes of representative is to be difficult to adsorb by common cigarette filter remove with formaldehyde.Therefore, need from mainstream smoke, remove aldehydes.
In the past, in order to remove the formaldehyde in the mainstream smoke, generally be to use and added active carbon as the absorbent filtering mouth.In addition, also attempt using various adsorbents.
But previously used adsorbent is absorbing formaldehyde not only, but also adsorbs other compositions, therefore, may bring adverse effect to the fragrance of tobacco product.
Summary of the invention
Technical problem to be solved by this invention provides the cigarette filter that can optionally remove the formaldehyde in the mainstream smoke.
Cigarette filter of the present invention is a kind of filter tip that is added with hydrotalcite-based compound, and this hydrotalcite-based compound presents layer structure, and layered structure forms the octahedral layer of metal hydroxides through laminated multi-layer.
The above-mentioned hydrotalcite-based compound of Shi Yonging is to represent with following general formula in the present invention.
M
2+ 1-xM
3+ x(OH)
2(A
n-)
x/n·mH
2O
(in the formula, M
2+For being selected from the divalent metal ion of Mg, Zn, Ni and Ca, M
3+Be Al ion, A
N-For being selected from CO
3, SO
4, OOC-COO, Cl, Br, F, NO
3, Fe (CN)
6 3-, Fe (CN)
6 4-, phthalic acid, M-phthalic acid, terephthalic acid (TPA), maleic acid, olefin(e) acid and derivative, malic acid, salicylic acid, acrylic acid, adipic acid, butanedioic acid, citric acid and sulfonic acid n valency anion, 0.1＜x＜0.4,0＜m＜2)
Cigarette filter of the present invention is to be that the hydrotalcite-based compound of 200-800 μ m is dispersed in the filter tip in fibre bundle for example or the nonwoven fabric sheet with average grain diameter.The fiber that is made of cellulose acetate is representative.
Cigarette filter of the present invention also can be by to be added with average grain diameter be 10 μ m or the hydrotalcite-based compound below the 10 μ m and form and prepare through copying the scraps of paper that paper obtains.
Cigarette filter of the present invention also can have a plurality of filtration fractions, and at least 1 filtration fraction contains hydrotalcite-based compound.At this moment, except containing the filtration fraction of hydrotalcite, can also use the charcoal filtering part.
Cigarette filter of the present invention also can have a plurality of filtration fractions and be filled in hydrotalcite particles in the gap between the filtration fraction.
Tobacco product of the present invention is the tobacco product that connects between above-mentioned cigarette filter and the cigarette rod.
Description of drawings
Fig. 1 is the filter-tip decomposition diagram of making in embodiments of the present invention.
Fig. 2 is a formaldehyde determination device schematic diagram in the mainstream smoke of the cigarette of using in embodiments of the present invention.
Fig. 3 is a schematic diagram of removing the rate of removing of formaldehyde by various adsorbents.
Fig. 4 is the schematic diagram of the absorption process of vapor phase composition in the mainstream smoke of cigarette in embodiments of the present invention.
Fig. 5 is the gas-chromatography schematic diagram of vapor phase composition in the mainstream smoke of cigarette in embodiments of the present invention.
Fig. 6 is when using hydrotalcite or active carbon as adsorbent, the vapour pressure of vapor phase composition and composition remove the schematic diagram that concerns between the rate.
Fig. 7 A is the size distribution schematic diagram of hydrotalcite particles.
Fig. 7 B is the schematic diagram that concerns between the average grain diameter of hydrotalcite particles and flowing resistance.
Fig. 8 is the schematic diagram that concerns between the surface area of hydrotalcite particles and formaldehyde reduced rate.
Fig. 9 is the filter tip schematic diagram with three portion-forms of embodiment 6.
Figure 10 is the filter tip schematic diagram with three portion-forms of embodiment 6.
Figure 11 is a filter tip schematic diagram in other embodiments of the invention.
The specific embodiment
The inventor studies adsorbent based on various viewpoints in order to reduce the formaldehyde in the mainstream smoke, and outcome research shows that hydrotalcite-based compound is effective.
Hydrotalcite-based compound presents layer structure, and this layer structure is that divalent or the octahedral layer of 3 valency metal hydroxides are formed through laminated multi-layer, wherein inserts anion.Octahedral layer is called as main body, and demonstrates alkalescence.Remove formaldehyde by hydrotalcite-based compound, can think the contribution of alkalescence of main body and the result who produces by the anionic ion exchange of inserting etc.
Hydrotalcite-based compound can be a native compound, also sintetics.Hydrotalcite-based compound is to use general formula
M
2+ 1-xM
3+ x(OH)
2(A
n-)
x/n·mH
2O
Expression.The divalent metal ions M
2+Be the Mg ion, 3 valence metal ion M
3+Be the Al ion, anion A
N-Be CO the most commonly
3 2-Perhaps SO
4 2-The divalent metal ions M
2+Except Mg, can also be Zn, Ni or Ca.Anion is except CO
3 2-Perhaps SO
4 2-In addition, can also be to be selected from OOC-COO, Cl, Br, F, NO
3, Fe (CN)
6 3-, Fe (CN)
6 4-, phthalic acid, M-phthalic acid, terephthalic acid (TPA), maleic acid, olefin(e) acid and derivative, malic acid, salicylic acid, acrylic acid, adipic acid, butanedioic acid, citric acid and sulfonic acid.X is 0.1＜x＜0.4, and m is 0＜m＜2.When x was the 0.20-0.33 scope, Mg-Al houghite compounds was stable.
When making hydrotalcite, add the carbonic acid alkali metal salt or add carbonic acid alkali metal salt and caustic alkali in the aqueous solution of the water miscible aluminium salt that is selected from aluminum sulfate, aluminium acetate and alum or aluminic acid and water-soluble magnesium salt, the pH value of keeping reactant mixture is more than 8.0 or 8.0 and makes it reaction.
Hydrotalcite-based compound for example can be controlled the size of micropore by inserting anionic size.In addition, the situation by anionic characteristic and intermediary water can realize multifunction.
As the cigarette filter that adds hydrotalcite-based compound, can consider following various embodiments.
(1) hydrotalcite-based compound is dispersed in filter tip in fibre bundles such as cellulose acetate or the nonwoven.
(2) to being added with that the hydrotalcite-based compound and the scraps of paper through copying the paper gained form and the filter tip for preparing.
(3) by 2 filter tips that constitute more than the part, at least 1 part is made of the filter tip of (1) or (2), and other parts are made of former cellulose acetate filter tip or charcoal filtering mouth.
(4) in the gap of fillter section-gap-fillter section structure, be filled with the filter tip of hydrotalcite-based compound.At this moment, fillter section is the filter tip that is selected from former cellulose acetate filter tip or charcoal filtering mouth, (1) or (2).In addition, when having 2 above spaces, hydrotalcite compound can be filled at least 1 space, in other space, can fill charcoal.
The particle diameter of hydrotalcite-based compound is preferably regulated according to following.In using the fibre bundle that hydrotalcite-based compound is dispersed in cellulose acetate or nonwoven or when hydrotalcite-based compound being filled in filter tip in the gap of fillter section-gap-fillter section structure, its particle diameter is preferably 200-800 μ m, more preferably 400-600 μ m.In addition, when using being added with that the hydrotalcite-based compound and the scraps of paper through copying the paper gained form and during the filter tip for preparing, its particle diameter is preferably 10 μ m or below the 10 μ m.
Embodiment 1
Use Mg
6Al
2(OH)
16CO
34H
2The hydrotalcite that O represents.By pulverizing this hydrotalcite, be 250-500 μ m with particle size adjustment in order to gradation.Use this hydrotalcite manufacturing filter tip 1 as shown in Figure 1.That is, fill hydrotalcite 3 in the gap that is provided with in 2 acetate filtration fractions 2,2 that form winding up coil paper respectively, use wrapping paper 4 cigarette simultaneously, thereby make the filter tip 1 of fillter section-gap-fillter section structure.
For the adsorbent with other compares, use active carbon, high surface area carbon, alkali metal salt Immesion active carbon, amine Immesion active carbon, activated alumina, magnesia, aluminium oxide, magnesium silicate, zinc oxide, silica gel, zeolite, formalin with building materials paper pulp, gas chromatography (GC) with post fillter section or water-absorbing resins, thereby make filter tip 1 with the same fillter section-gap-fillter section structure of Fig. 1.
If the loading of the adsorbent of each example is all the same.In addition, the tobacco leaf portion of 12mg tar content is connected on each filter tip, thus the cigarette of making test usefulness.
By the amount of formaldehyde in Canadian official method (2, the 4-DNPH-HPLC method) the mensuration cigarette mainstream smoke, try to achieve the rate of removing of formaldehyde.
At first, with 9.51g2,4-dinitrophenyl hydrazine (DNPH) is dissolved in the 1L acetonitrile, adds 60% perchloric acid of 5.6mL then by heating, adds ultra-pure water, thus the absorption liquid of preparation 2L.
Contrast Fig. 2 describes the determinator structure.As shown in Figure 2, add DNPH absorption liquid 12 in the Drexel bottle 11 to air-breathing using.The capacity of Drexel bottle 11 is 100mL, and the amount of DNPH absorption liquid 12 is 80mL.Ice-water bath 13 is put in this Drexel bottle 11 to be cooled off.The lower end that the glass tube 14 of cigarette 10 is installed is dipped in the absorption liquid 12 in the Drexel bottle 11.In order to be communicated with, glass tube 15 and cambridge filter (Cambride pad) 16 to be installed, and to be connected cambridge filter 16 and automatic smoking instrument 17 with the dead space (dead volume) of Drexel bottle 11.
(HPLC) measures the derivative of above-mentioned generation by high performance liquid chromatography.At first, filter absorption liquid, then with Trizma Base liquid dilution absorption liquid (absorption liquid 4mL:Trizma Base liquid 6mL).By HPLC this dilution is measured.The condition determination of HPLC is as follows.
Post: HP LiChrospher 100RP-18 (5 μ) 250 * 4mm
Guard column: HP LiChrospher 100RP-18 (5 μ) 4 * 4mm
Column temperature: 30 ℃
Detect wavelength: DAD356nm
Injection rate: 20 μ L
Phase flows: 3 phase gradients (A liquid: contain the ultra-pure water aqueous solution of 30% acetonitrile, 10% oxolane and 1% isopropyl alcohol, B liquid: contain the ultra-pure water aqueous solution of 65% acetonitrile, 1% oxolane and 1% isopropyl alcohol, C liquid: 100% acetonitrile).
The rate of the removing E of formaldehyde with
E＝(W-W’)/W
Expression, wherein W represents to use the cigarette that does not have adsorbent and the formaldehyde amount that records, and the formaldehyde amount that is filled with the cigarette of adsorbent and records is used in W ' expression.
Fig. 3 represents the rate of removing by the formaldehyde of various adsorbents.Can learn from Fig. 3, when using hydrotalcite, can farthest reduce the formaldehyde amount as adsorbent.
Use hydrotalcite as adsorbent or use active carbon as prevailing cigarette adsorbent, try to achieve the rate of removing of the vapor phase composition in the main flow cigarette as adsorbent.
Prepare hydrotalcite or the active carbon of particle diameter 250-500 μ m similarly to Example 1, fill with the loading of 50mg separately, thereby make the filter tip identical with Fig. 1.The tobacco portion of 12mg tar content is connected on this filter tip, thus the cigarette of making test usefulness.
Contrast Fig. 4 and Fig. 5 describe the assay method of the rate of removing of the gas phase steam composition in the main flow cigarette.
Fig. 4 is the schematic diagram of the absorption process of vapor phase composition.As shown in Figure 4, cigarette 10 is installed on the automatic smoking apparatus 17, under ISO specified standard smoking condition, makes cigarette 10 automatic smokings, remove particle phase in the mainstream smoke, vapor phase is absorbed in the air bag 20 by Cambridge filter.At this moment, be 2 seconds smoking 35mL with 58 seconds interval to the each suction of operation that every cigarette repeats suction 1 time.In addition, make and be in harmonious proportion 10 good cigarettes (mediation condition: 22 ℃, humidity 60%) smoking automatically.
Fig. 5 is the gas chromatography schematic diagram.As shown in Figure 5, the vapor phase composition in a certain amount of air bag 20 is collected in the sample room 21, behind the injection calibrating gas, be injected into gas chromatograph 22.By splitter (DB-WAX) separated component, detect composition by detector, use the process analysis of PC 23 to become component.The peak area of each vapor phase composition is divided by the peak area of calibrating gas, thereby tries to achieve assay value.
The rate of the removing E of each vapor phase composition with
E＝(A-A’)/A
Expression, wherein A represents to use the cigarette that does not have adsorbent and the constituent analysis value that records, and A represents to use the cigarette of adsorbent and the constituent analysis value that records.
The vapour pressure of expression vapor phase composition and composition are removed the relation between the rate in Fig. 6.As can be seen from Figure 6, when using active carbon as adsorbent, along with the vapour pressure rising of vapor phase composition, the rate of removing improves.On the other hand, when using hydrotalcite as adsorbent, the rate of removing of a PARA FORMALDEHYDE PRILLS(91,95) is high especially, has shown and has optionally removed function.
When in the cigarette filter of for example Fig. 1 embodiment, using hydrotalcite, in order to control flowing resistance and tar/nicotine discharge rate, the size that need suitably regulate hydrotalcite.
If hydrotalcite is carried out granulating, can modulate the different sample of fineness.At this moment, according to average grain diameter difference sample.In Fig. 7 A, represented that average grain diameter is 3 kinds of samples of 250 μ m, 500 μ m and 800 μ m.
Then, use the different hydrotalcite particles of average grain diameter, the filter tip that has Fig. 1 form with various loading manufacturings.In order to be used for contrast, use charcoal, be equivalent to have the filter tip of the form product of Fig. 1 with various loading manufacturings.
Verify the flowing resistance of these filter tips when inspiratory flow rate is 1050mL/min.Wherein, remove the flowing resistance that 2 the acetate filter parts 2,2 at Fig. 1 produce and calculating.
Relation in Fig. 7 B between expression average grain diameter and the flowing resistance.As can be seen from Figure 7B, when using average grain diameter to be the particle of 250 μ m, the flowing resistance height, when using average grain diameter to be the particle of 800 μ m, flowing resistance is low.And, it seems that from the deisgn product this point using average grain diameter is suitable as the hydrotalcite particles of 400-600 μ m.
And, when using the micronize particle, use any micronisation process such as rotating micronize, compression forming, coated microgranulesization, extrusion modling, can obtain the hydrotalcite particles of target grain size.But for fear of crushing hydrotalcite particles when making filter tip, preferred use can obtain having the micronisation process of the micronized hydrotalcite particles of suitable hardness.If the hardness of hydrotalcite particles is 300-3000g/mm
2, can prevent crushing hydrotalcite particles when making filter tip.
Shown that in the present embodiment the reduced rate of the formaldehyde when adopting hydrotalcite in the mainstream smoke depends on the surface area of hydrotalcite particles.
As micronisation process, use and rotate micronize (A), compression forming (B) or extrusion modling (C), modulate various micronized hydrotalcite particles.Use laser distributing particle size distribution device, calculate the average surface area of the hydrotalcite particles of per unit weight.
Use has the hydrotalcite particles of various surface areas, makes the filter tip with Fig. 1 form.At this moment, by regulating loading, the total surface area of regulating the hydrotalcite particles of filling.And the relation in the total surface area of research hydrotalcite particles and the mainstream smoke between the reduced rate of formaldehyde the results are shown in Fig. 8.
As can be seen from Figure 8, the total surface area of hydrotalcite particles is bigger, more can reduce the formaldehyde of discharging from mainstream smoke.The micronisation process of this tendency and hydrotalcite is irrelevant.
In the present embodiment, when research is adopted the paper filter tip that adds hydrotalcite and is added the cellulose acetate filter tip of micronized hydrotalcite, the reduced rate of formaldehyde in the mainstream smoke.
Add the following hydrotalcite particles of average grain diameter 10 μ m or 10 μ m and simultaneously the scraps of paper are copied paper, these scraps of paper are formed, make paper filter tip 7 as shown in Figure 9.In order to be used for comparison, to make the scraps of paper typing of not adding hydrotalcite particles, thereby make filter tip.
In addition, micronized hydrotalcite particles is dispersed in the fibre bundle of cellulose acetate, thereby makes filter tip.In order to be used for comparison, make the cellulose acetate filter tip that does not add hydrotalcite particles.
And filter-tip length is 25mm, makes the flowing resistance unanimity as far as possible.
Use these filter tips, the reduced rate of the formaldehyde in the research mainstream smoke.The results are shown in table 1.
As shown in table 1, contain the paper filter tip of hydrotalcite particles, compare the discharge rate step-down of the formaldehyde of unit tar content with the filter-tip situation of the acetate that contains hydrotalcite particles.Can think this be because, thereby be that 10 μ m or the hydrotalcite particles high dispersive below 10 μ m ground adds to and improved contact area in the scraps of paper with average grain diameter.
Table 1
Shown in the present embodiment,, can improve the reduced rate of organic steam composition by being used in combination hydrotalcite filter tip and charcoal filtering mouth.
Filter tip shown in the I of manufacturing table 2, II, the III with three parts.The various piece of using is described.The acetate filtration fraction is that the fibre bundle of cellulose acetate is tied up, and makes the long filter tip of 7mm.Hydrotalcite (HT) filtration fraction is that the hydrotalcite particles with 70mg is dispersed in the fibre bundle of cellulose acetate and tow is tied up, and makes the long filter tip of 10mm.Charcoal filtering partly is that the charcoal particle with 70mg is dispersed in the fibre bundle of cellulose acetate and tow is tied up, and makes the long filter tip of 10mm.
The filter tip III of expression table 2 in Figure 10.As shown in the figure, charcoal filtering part 5 is set, HT filtration fraction 6 is set in the centre, acetate filtration fraction 2 is set at aspiration port at the tobacco leaf end.
Use these filter tips, verify the reduced rate of whole organic steams (TOV) in the mainstream smoke and the reduced rate of formaldehyde (FA).The results are shown in table 2.
As shown in table 2, by the effect of charcoal filtering mouth, filter tip III can reduce whole organic steams, and, can reduce formaldehyde by the filter-tip effect of hydrotalcite (HT).
Table 2
Additive weight: 70mg/10mm
Filter length: tobacco leaf end 10mm, middle 10mm, aspiration port 7mm
The flowing resistance of cigarette filter: 72mmWG/27mm
Air vent: do not have
For filter tip of the present invention, can consider the example of following various conversion.
For example, in the filter tip that has as Fig. 1 structure, can use other filter tip partly to come to substitute the acetate filter tip part 2 on one side at least.Other filter tip part can be a hydrotalcite filter tip part, also can be the charcoal filtering mouth portion.In addition, when using the charcoal filtering part, preferably be arranged on the tobacco leaf end equally with Figure 10.
In Figure 10, as hydrotalcite filter tip part, use is dispersed in hydrotalcite-based compound the filter tip in the fibre bundle of cellulose acetate, also can use being added with that the hydrotalcite-based compound and the scraps of paper through copying the paper gained form and the filter tip for preparing.
Also can in the filter tip of Figure 10 structure, add other filter tip parts again, thereby make filter tip with 4 parts.
In addition, as shown in figure 11, also can use the filter tip that constitutes by charcoal filtering part 5, the gap that is filled with hydrotalcite particles 3, hydrotalcite (HT) filtration fraction 6, acetate filtration fraction 2.
In this case, hydrotalcite filtration fraction 6 can be with the acetate filter tip as matrix, also can be as matrix with the paper filter tip.Also can gap and the HT filter tip part 6 that be filled with HT particle 3 be set on the contrary with Figure 11.In Figure 11, in the gap, fill the HT particle, but also can fill the charcoal particle.
Industrial applicibility
By the present invention, can provide cigarette filter and the tobacco product of formaldehyde in effective reduction mainstream smoke.
Claims (7)
1. the hydrotalcite-based compound that following general formula is represented in cigarette filter as the purposes of the adsorbent of formaldehyde in the cigarette mainstream smoke,
M
2+ 1-xM
3+ x(OH)
2(A
n-)
x/n·mH
2O
Wherein, M
2+For being selected from the divalent metal ion of Mg, Zn, Ni and Ca, M
3+Be Al ion, A
N-For being selected from CO
3, SO
4, OOC-COO, Cl, Br, F, NO
3, Fe (CN)
6 3-, Fe (CN)
6 4-, phthalic acid, M-phthalic acid, terephthalic acid (TPA), maleic acid, olefin(e) acid and derivative, malic acid, salicylic acid, acrylic acid, adipic acid, butanedioic acid, citric acid and sulfonic acid n valency anion, 0.1＜x＜0.4,0＜m＜2.
2. purposes as claimed in claim 1 is characterized in that: above-mentioned filter tip is that the hydrotalcite-based compound of 200-800 μ m is dispersed in the tow of fiber or the nonwoven fabric sheet and makes with average grain diameter.
3. purposes as claimed in claim 2 is characterized in that: above-mentioned fiber is made of cellulose acetate.
4. purposes as claimed in claim 1 is characterized in that: described filter tip is by to be added with average grain diameter be 10 μ m or the hydrotalcite-based compound below the 10 μ m and form and prepare through copying the scraps of paper that paper obtains.
5. purposes as claimed in claim 1 is characterized in that: described cigarette has a plurality of filtration fractions, and at least 1 filtration fraction contains above-mentioned hydrotalcite-based compound.
6. purposes as claimed in claim 5 is characterized in that: described cigarette also has the charcoal filtering part except containing the filtration fraction of hydrotalcite-based compound.
7. purposes as claimed in claim 1, described cigarette have a plurality of filtration fractions and are filled in the hydrotalcite-based compound particle in the space between the filtration fraction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1509/02 | 2002-01-08 | ||
| JP2002001509 | 2002-01-08 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA038019744A Division CN1612701A (en) | 2002-01-08 | 2003-01-07 | Smoking filter and smoking article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102028307A true CN102028307A (en) | 2011-04-27 |
Family
ID=19190626
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA038019744A Pending CN1612701A (en) | 2002-01-08 | 2003-01-07 | Smoking filter and smoking article |
| CN2010105256143A Pending CN102028307A (en) | 2002-01-08 | 2003-01-07 | Smoking filter and smoking article |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA038019744A Pending CN1612701A (en) | 2002-01-08 | 2003-01-07 | Smoking filter and smoking article |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US20040237983A1 (en) |
| EP (1) | EP1470761B1 (en) |
| JP (1) | JP3895327B2 (en) |
| KR (1) | KR100912311B1 (en) |
| CN (2) | CN1612701A (en) |
| AU (1) | AU2003202479A1 (en) |
| CA (1) | CA2472385C (en) |
| DK (1) | DK1470761T3 (en) |
| ES (1) | ES2563032T3 (en) |
| MY (1) | MY146655A (en) |
| PT (1) | PT1470761E (en) |
| RU (1) | RU2291657C2 (en) |
| TW (1) | TWI324049B (en) |
| UA (1) | UA77052C2 (en) |
| WO (1) | WO2003056947A1 (en) |
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|---|---|---|---|---|
| DE102004048651A1 (en) * | 2004-10-06 | 2006-04-13 | Rhodia Acetow Gmbh | Tobacco smoke filters or filter elements containing additives |
| JP4556026B2 (en) * | 2004-12-28 | 2010-10-06 | 富田製薬株式会社 | Formaldehyde gas treating agent and formaldehyde gas treating method |
| JP2008131856A (en) * | 2005-02-28 | 2008-06-12 | Japan Tobacco Inc | Apparatus for inspecting multiple filter rod |
| JP5126868B2 (en) * | 2006-12-25 | 2013-01-23 | 株式会社ダイセル | Filter material made of porous material and cigarette filter using the same |
| JP5800460B2 (en) | 2010-02-01 | 2015-10-28 | 株式会社ダイセル | Cigarette filters containing magnesium metasilicate aluminate |
| GB201004976D0 (en) * | 2010-03-24 | 2010-05-12 | Filtrona Int Ltd | Tobacco smoke filter |
| US9034106B2 (en) * | 2010-03-26 | 2015-05-19 | Philip Morris Usa Inc. | Smoking article including alkanoylated glycoside |
| GB201007946D0 (en) * | 2010-05-12 | 2010-06-30 | British American Tobacco Co | Filter additive |
| JP5623875B2 (en) | 2010-11-11 | 2014-11-12 | 株式会社ダイセル | COMPOSITE PARTICLE, TOBACCO FILTER, ITS MANUFACTURING METHOD, AND TOBACCO |
| EP2540174B1 (en) * | 2011-06-29 | 2017-06-21 | Daicel Corporation | Tobacco Filter Containing Magnesium Aluminometasilicate |
| CN103987284B (en) * | 2011-12-06 | 2019-01-11 | 日本烟草产业株式会社 | cigarette filter and cigarette |
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| JP6575993B2 (en) * | 2015-05-25 | 2019-09-18 | 住江織物株式会社 | Ammonia gas, sulfur dioxide gas and nitrogen dioxide gas removal filter |
| EP3400814A4 (en) * | 2016-03-28 | 2019-08-21 | Japan Tobacco Inc. | Filter for smoking article, smoking article, and process for producing filter for smoking article |
| JP7150719B2 (en) * | 2016-12-29 | 2022-10-11 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Smoking article filter with amorphous magnesium carbonate |
| KR102495620B1 (en) * | 2017-06-19 | 2023-02-06 | 니뽄 다바코 산교 가부시키가이샤 | Smoking article filter and method of manufacturing the same |
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| CN110639283A (en) * | 2019-09-16 | 2020-01-03 | 江苏清荷材料科技有限公司 | Method for preparing air filter screen by adopting attapulgite composite material |
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| DE2740011A1 (en) * | 1977-09-06 | 1979-03-08 | Bat Cigarettenfab Gmbh | METHOD FOR REMOVING NITROGEN MONOXIDE AND CARBON MONOXIDE FROM TOBACCO SMOKE AND TOBACCO MATERIAL, SMOKE FILTER AND CIGARETTE PAPER FOR ITS IMPLEMENTATION |
| JPS63248380A (en) * | 1987-04-06 | 1988-10-14 | 三井東圧化学株式会社 | Radical catching agent for tobacco smoke |
| US5360023A (en) * | 1988-05-16 | 1994-11-01 | R. J. Reynolds Tobacco Company | Cigarette filter |
| US5362457A (en) * | 1992-08-13 | 1994-11-08 | Aluminum Company Of America | Direct synthesis of anion substituted hydrotalcite |
| DE4322966C2 (en) * | 1993-07-09 | 1995-10-26 | Rhodia Ag Rhone Poulenc | Cellulose acetate molded structures and their use as filter tow and tobacco smoke filter element |
| US5509430A (en) * | 1993-12-14 | 1996-04-23 | American Filtrona Corporation | Bicomponent fibers and tobacco smoke filters formed therefrom |
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| ITPI20010014A1 (en) * | 2001-03-05 | 2002-09-05 | Ivo Pera | COMPOUND FOR FILTERS FOR CIGARETTES, OR OTHER SMOKING ITEMS, BASED ON ANTIOXIDANT SUBSTANCES AND THE FILTER SO OBTAINED |
| JP2003155696A (en) * | 2001-11-16 | 2003-05-30 | Oji Paper Co Ltd | Cigarette paper |
-
2002
- 2002-12-31 TW TW091137960A patent/TWI324049B/en not_active IP Right Cessation
-
2003
- 2003-01-03 MY MYPI20030015A patent/MY146655A/en unknown
- 2003-01-07 DK DK03701015.4T patent/DK1470761T3/en active
- 2003-01-07 EP EP03701015.4A patent/EP1470761B1/en not_active Expired - Lifetime
- 2003-01-07 RU RU2004124060/12A patent/RU2291657C2/en active
- 2003-01-07 CA CA2472385A patent/CA2472385C/en not_active Expired - Lifetime
- 2003-01-07 ES ES03701015.4T patent/ES2563032T3/en not_active Expired - Lifetime
- 2003-01-07 KR KR1020047010408A patent/KR100912311B1/en active IP Right Grant
- 2003-01-07 CN CNA038019744A patent/CN1612701A/en active Pending
- 2003-01-07 PT PT3701015T patent/PT1470761E/en unknown
- 2003-01-07 CN CN2010105256143A patent/CN102028307A/en active Pending
- 2003-01-07 AU AU2003202479A patent/AU2003202479A1/en not_active Abandoned
- 2003-01-07 WO PCT/JP2003/000036 patent/WO2003056947A1/en active Application Filing
- 2003-01-07 JP JP2003557319A patent/JP3895327B2/en not_active Expired - Fee Related
- 2003-07-01 UA UA20040806603A patent/UA77052C2/en unknown
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2004
- 2004-07-07 US US10/885,088 patent/US20040237983A1/en not_active Abandoned
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| KR100912311B1 (en) | 2009-08-14 |
| JPWO2003056947A1 (en) | 2005-05-12 |
| CA2472385A1 (en) | 2003-07-17 |
| CN1612701A (en) | 2005-05-04 |
| UA77052C2 (en) | 2006-10-16 |
| EP1470761A4 (en) | 2009-05-27 |
| JP3895327B2 (en) | 2007-03-22 |
| MY146655A (en) | 2012-09-14 |
| AU2003202479A1 (en) | 2003-07-24 |
| DK1470761T3 (en) | 2016-02-15 |
| EP1470761A1 (en) | 2004-10-27 |
| RU2004124060A (en) | 2006-01-27 |
| CA2472385C (en) | 2011-08-02 |
| TW200301681A (en) | 2003-07-16 |
| KR20040073534A (en) | 2004-08-19 |
| RU2291657C2 (en) | 2007-01-20 |
| ES2563032T3 (en) | 2016-03-10 |
| TWI324049B (en) | 2010-05-01 |
| PT1470761E (en) | 2016-03-18 |
| WO2003056947A1 (en) | 2003-07-17 |
| US20040237983A1 (en) | 2004-12-02 |
| EP1470761B1 (en) | 2015-12-30 |
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Application publication date: 20110427 |