CN1810167B - Dry process paper filter tip and its preparation process - Google Patents
Dry process paper filter tip and its preparation process Download PDFInfo
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- CN1810167B CN1810167B CN 200610024267 CN200610024267A CN1810167B CN 1810167 B CN1810167 B CN 1810167B CN 200610024267 CN200610024267 CN 200610024267 CN 200610024267 A CN200610024267 A CN 200610024267A CN 1810167 B CN1810167 B CN 1810167B
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Abstract
The present invention reveals one kind of dry process paper filter tip and its preparation process. The filter tip material including wood pulp fiber and coat core fiber is first antistatic treated with non-toxic ester or ether to specific resistance smaller than 900 megohm.cm; and the opened material is then metered, conveyed, airflow netted, heated to form under negative pressure, sprayed with glue, stoved, matured, puffed and settled in cold wind to form dry process paper of plane weight 35-75 g/sq m and thickness of 0.8-3.5 mm. The dry process paper is finally formed into the filter tip, and the filter tip has filter rate over 43 %, hardness over 89 % and ideal rebounding effect after kneads.
Description
Affiliated technical field
The present invention relates to the method for a kind of cigarette filter rod and preparation thereof, particularly relate to a kind of dry process paper filter tip and preparation method thereof.
Background technology
Along with the raising of people's quality of life, the consciousness of health is strengthened day by day, cigarette the abundant attention that burnt problem not only obtains cigarette industry falls, caused the concern of the World Health Organization and national governments simultaneously.Be hinged with filter tip on cigarette, with low cost, effect is directly perceived, is the effective measures of tobacco smoke filter element T/N, and the cigarette more than 98% all has been hinged with filter tip in the world.The filter-tip material that adopts in the cigarette of Xiao Shouing mainly is divided into two big classes in the market: a class is an acetate fiber, and another kind of is polypropylene fibre.The filter tip that adopts polypropylene fibre to make although price is lower, exists following problem, as: lack flexibility, filterability is lower, and general length is the filter tip of 2cm, and filterability only is about 32%; The absorption taste port sense is also relatively poor, and certain acid is arranged, and can only be used for low-grade cigarette usually.And the filter tip filterability that adopts acetate fiber to make is higher, and the filter tip of same length can be brought up to filterability about 40%, and the absorption taste port sense is good, but price is also corresponding to higher.In addition, because of domestic limited production capacity, quite a few material also depends on import, generally is used for medium-to-high grade cigarette at present, accounts for 80% of the total market size.Yet, no matter be the filter tip that adopts acetate fiber or polypropylene fibre to make, all extremely be difficult to degraded after abandoning.In order to address these problems, in recent years, the insider all seek a kind ofly have higher filterability, to inhale flavor good, environmental, and filter tip material with low cost.Because wood pulp cellulose has stronger absorption affinity, the someone adopts crimped paper to make filter tip.CN1048492A discloses a kind of " paper filter stick ", is the dedicated paper with intensive ripple that raw material suppresses with senior paper pulp, makes the paper filter stick of cigarette.But because raw-material inadequate natural endowment, the filter stick after the making is softer, and very easily causes drop-head, is difficult to reach the national standard of relevant filter stick.And because of the Density Distribution of the ripple of corrugated paper irregular, if loading little filter stick soft, and if the excessive resistance to suction that can cause of loading is big, the smell that particularly filters the back flue gas is not as acetate fiber.And for example Chinese invention patent " natural fiber filter stick " (ZL01255200) adopts natural fiber and additive, adds by heating to be pressed in foaming making filter stick in the die cavity.In view of the present invention need be equipped with unique process equipment, and be difficult to control air penetrability and filterability, be difficult to enter practical application so far.Korean Patent KR1019930003328 discloses a kind of raising resistance to water and flexible cigarette filter rod paper, KR1019950001962 discloses a kind of cigarette filter rod sheet material that improves consistency and elasticity, the various fibers that all added other in wood pulp cellulose are to improve the elasticity of filter tip, but, certainly will cause great environmental pollution in view of it has all adopted wet papermaking.Because must add numerous additives in the wet papermaking process, as polyethylene oxide mentioned in this patent, PAMC, sulfonic acid aluminium, cellulose etc., suctions flavor that these not only can influence cigarette, have in addition also have certain toxicity." method of dry process paper filter tip and preparation thereof " (application number 200510024998.X) invented a kind of through expanded dry method paper making filter stick.Dry method paper is also referred to as dust-free paper or Wood pulp non-woven fabrics at home usually.Although it has solved most of problem that above-mentioned material exists, and it is even to have a filter stick space, convenient formation, advantage such as with low cost, and gas permeability, adsorption rate etc. all filter stick with the acetate fiber making are suitable.But demonstrate some deficiency in actual use, although reach relevant national standard as the hardness of this filter stick, pinching in the cigarette aspiration procedure and the moisture in the flue gas can reduce the elasticity of filter tip, thereby filterability and suction flavor are affected.
Summary of the invention
The present invention is exactly in order to solve some above-mentioned problem and shortage, a kind of direct harm that can effectively reduce tobacco to the smoker to be provided, can keeping desirable resilience, reduce cigarette filter of cost of manufacture and preparation method thereof when improve filterability again.
Technical scheme of the present invention is achieved in that by filter core base material and forming paper forms dry process paper filter tip.The filter core base material is the bulk high resiliency dry method paper of being made by the hot melt core-skin fibre of wood pulp cellulose and 5%～65%, and concrete preparation method is as follows.At first, adopt nontoxic ester class or ethers, the hot melt core-skin fibre carried out surface anti-static handle, make its than resistance less than 9 * 10
8(Ω cm).Subsequently, the wood pulp cellulose of shredding and 5%～65% hot melt core-skin fibre are measured conveying, air lay respectively.Doing in the moulding drying tunnel does not have the hot briquetting of pressure, and drying tunnel is 0.98～0.85 atmospheric negative pressure state.Then, the dry method paper of moulding is sprayed glue, the amount of spraying is 3.5%～7% of a dry method paper weight, and once finishes oven dry, slaking, puffing process, and after the cold wind typing, forming grammes per square metre is 35 g/m
2～75g/m
2, thickness is the dry method paper of 0.8mm～3.5mm.At last, above-mentioned dry method paper is placed on the filter rod forming machine feed arrangement, is directly becoming rod on the filter-stick forming device after the parcel forming paper.
Further technical scheme of the present invention is achieved in that by filter core base material and forming paper forms dry process paper filter tip.The filter core base material is the bulk high resiliency dry method paper of being made by the hot melt core-skin fibre of wood pulp cellulose and 5%～65%, and the hot melt core-skin fibre can be selected PE/PP, LPET/PET, or PE/PET, perhaps adopts the mixture of PE/PP and PE/PET.Concrete preparation method and said method are identical.
Owing to add added hot melt core-skin fibre an amount of, that have rigidity man-hour in wood pulp cellulose, finished product dry method paper is bulk and very flexible, and thickness is more than 2 times of common dry method paper at least.Simultaneously, the nothing that adopted is pressed hot briquetting and the oven dry of the scalariform temperature difference, slaking, expanded new technology, more makes dry method paper feel full stiffening, not yielding.After becoming rod, not only hardness can meet the national standard of filter stick fully, and the pinching that carries out in the cigarette aspiration procedure, and even the moisture in the adsorbed flue gas, can not influence the elasticity of filter tip, still can keep good screen resilience.
Beneficial effect of the present invention is: adopt by string such as wood pulp and add the dry method paper that an amount of hot melt core-skin fibre is produced, the loading and the acetate fiber of filter core base material are suitable, but than its more natural, nontoxic, environmental protection;
Adopting the finished product dry method paper grammes per square metre of the inventive method preparation is 35g/m
2～75g/m
2, thickness is 0.8mm～3.5mm, good permeability, the space is even, intensity is high, good springiness.The filter stick adsorption rate of making can reach more than 43%, is higher than 3～5 percentage points of cellulose acetate filter rods, and is higher 11～13 percentage points than the adsorption rate of polypropylene fibre filter stick, more helps the absorption of tar;
Add and need not also needn't add cellosolve or fiberizing adhesive to fiber opening man-hour, simplified the filter stick manufacture craft, the filter stick feel of making is full, good springiness, screen resilience height, free from extraneous odour, no acid;
The making of filter stick can be adopted existing common filter-stick forming device, and the outward appearance and the existing product of product are suitable, easily by cigarette manufacturer and consumer's approval.Particularly in aspiration procedure, through pinching, so that after being subjected to the influence of moisture in the adsorbed flue gas, still not yielding, can keep good resilience, with low cost.
The invention will be further described below in conjunction with each embodiment.
The specific embodiment
Embodiment one
At first, adopt nontoxic ester class or ethers, the hot melt core-skin fibre carried out surface anti-static handle, make its than resistance less than 9 * 10
8(Ω cm).Subsequently, the wood pulp cellulose of shredding and 5%～65% hot melt core-skin fibre are measured conveying, air lay respectively.The hot melt core-skin fibre can be selected PE/PP, LPET/PET, or PE/PET, also can adopt the mixture of PE/PP and PE/PET.Paper web into the net does not have the hot briquetting of pressure in the moulding drying tunnel, drying tunnel is the atmospheric negative pressure state in 0.98.～0.85, makes dry method paper keep higher bulkiness.Then, the dry method paper of moulding is sprayed glue, the amount of spraying is 3.5%～7% of a dry method paper weight, once finishes oven dry, slaking, puffing process, and after the cold wind typing, the formation grammes per square metre is 35g/m
2～75g/m
2, thickness is the bulk high resiliency dry method paper of 0.8mm～3.5mm.If adopt scalariform temperature difference drying tunnel, dry, slaking, expanded, then effect is better.Dry method paper according to required width cutting slivering, is placed on the filter rod forming machine feed arrangement, directly after the parcel forming paper, is becoming rod on the filter-stick forming device.The dry method paper filter stick feel of making is full, good springiness, and hardness is about 89% ± 1, meets the national standard of filter stick fully.When length was 120mm, resistance to suction was 3600pa～3800pa, heavily about 0.75g～0.77g.Tipping is on cigarette after being cut into the filter tip of 20mm length, and the filterability that records is 43%～45%.Cigarette pure taste, free from extraneous odour, no acid, pleasant impression is clean.Behind pinching repeatedly, still have desirable screen resilience.
Embodiment two
Adopt the dry process paper filter tip of embodiment one described method preparation, adopt 35% PE/PP hot melt core-skin fibre, also can adopt the mixture hot melt core-skin fibre of PE/PP and PE/PET, mixed proportion is: 5%～95%PE/PP and 95%～5%PE/PET, the formation grammes per square metre is 45g/m
2, thickness is the bulk high resiliency dry method paper of 1.3mm.According to the requirement of finished product, dry method paper is divided into the wide belt strip of 4cm, overlapping three layers.The dry method paper of three plies is placed on the feed arrangement of common filter rod forming machine, directly after the parcel forming paper, is becoming rod on the filter-stick forming device.The dry method paper filter stick good permeability of making, netted space evenly, good springiness, resilience is strong, feel is full, drop-head not, hardness is about 89%, every index all meets the national standard of relevant filter stick.When length was 120mm, resistance to suction was 3750pa, the heavy 0.77g of rod.Be cut into behind the filter tip of 20mm length tipping on cigarette after, the filterability that records is 45.1%, the granule phase substance in the filtering flue gas manys 1.5mg than the acetate fiber filter tip.The steam that adsorbs in pinching and the filtering process does not all influence the resilience effect of filter tip.Cigarette pure taste, free from extraneous odour, no acid, pleasant impression is clean.
Claims (5)
1. a dry process paper filter tip of being made up of filter core base material and forming paper is characterized in that described filter core base material is the bulk high resiliency dry method paper of being made by the hot melt core-skin fibre of wood pulp cellulose and 5%～65%, and the grammes per square metre of dry method paper is 35g/m
2～75g/m
2, the thickness of dry method paper is 0.8mm～3.5mm.
2. dry process paper filter tip according to claim 1 is characterized in that described hot melt core-skin fibre adopts PE/PP, LPET/PET, and perhaps PE/PET perhaps adopts the mixture of PE/PP and PE/PET.
3. dry process paper filter tip according to claim 2, when described hot melt core-skin fibre adopts the mixture of PE/PP and PE/PET, it is characterized in that the mixed proportion of described PE/PP and PE/PET is: 5%～95%PE/PP and 95%～5%PE/PET.
4. dry process paper filter tip according to claim 1 and 2 is characterized in that the grammes per square metre when dry method paper is 75g/m
2The time, the thickness of dry method paper is at least 1.20mm.
5. method for preparing the described dry process paper filter tip of claim 1 is characterized in that:
A, adopt nontoxic ester class or ethers, the hot melt core-skin fibre carried out surface anti-static handle, make its than resistance less than 9 * 10
8Ω cm;
B, the wood pulp cellulose of shredding and 5%～65% hot melt core-skin fibre are measured conveying, air lay respectively;
C, work nothing pressure hot briquetting earlier in the moulding drying tunnel, drying tunnel is 0.98～0.85 atmospheric negative pressure state;
D, the dry method paper of moulding is sprayed glue, the amount of spraying is 3.5%～7% of a dry method paper weight, and once finishes oven dry, slaking, puffing process, and then the cold wind typing, and the formation grammes per square metre is 35g/m
2～75g/m
2, thickness is the dry method paper of 0.8mm～3.5mm;
E, with grammes per square metre 35g/m
2～75g/m
2, the dry method paper of thickness 0.8mm～3.5mm is placed on the filter rod forming machine feed arrangement, is directly becoming rod on the filter-stick forming device after the parcel forming paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610024267 CN1810167B (en) | 2006-03-02 | 2006-03-02 | Dry process paper filter tip and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610024267 CN1810167B (en) | 2006-03-02 | 2006-03-02 | Dry process paper filter tip and its preparation process |
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|---|---|
| CN1810167A CN1810167A (en) | 2006-08-02 |
| CN1810167B true CN1810167B (en) | 2010-05-26 |
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| CN 200610024267 Active CN1810167B (en) | 2006-03-02 | 2006-03-02 | Dry process paper filter tip and its preparation process |
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| CN111000289A (en) * | 2019-12-31 | 2020-04-14 | 深圳市宏翔新材料发展有限公司 | Preparation method of filter material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998988A (en) * | 1970-12-24 | 1976-12-21 | Teijin Limited | Conjugate fiber, fibrous material and fibrous article made therefrom and process for production thereof |
| CN87100457A (en) * | 1986-02-03 | 1987-08-12 | R·J·雷诺兹烟草公司 | Tobacco rod and filter tip |
| CN1048492A (en) * | 1989-07-04 | 1991-01-16 | 中国科学院地球化学研究所广州分部 | Filter for smoke of tobacco |
| US5607766A (en) * | 1993-03-30 | 1997-03-04 | American Filtrona Corporation | Polyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom |
| CN1423981A (en) * | 2001-12-10 | 2003-06-18 | 侯关荣 | Natural fibre cigarette tip and production thereof |
| CN1669491A (en) * | 2005-04-08 | 2005-09-21 | 梅建华 | Dry method paper cigarette filter candle and preparation method thereof |
-
2006
- 2006-03-02 CN CN 200610024267 patent/CN1810167B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998988A (en) * | 1970-12-24 | 1976-12-21 | Teijin Limited | Conjugate fiber, fibrous material and fibrous article made therefrom and process for production thereof |
| CN87100457A (en) * | 1986-02-03 | 1987-08-12 | R·J·雷诺兹烟草公司 | Tobacco rod and filter tip |
| CN1048492A (en) * | 1989-07-04 | 1991-01-16 | 中国科学院地球化学研究所广州分部 | Filter for smoke of tobacco |
| US5607766A (en) * | 1993-03-30 | 1997-03-04 | American Filtrona Corporation | Polyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom |
| CN1423981A (en) * | 2001-12-10 | 2003-06-18 | 侯关荣 | Natural fibre cigarette tip and production thereof |
| CN1669491A (en) * | 2005-04-08 | 2005-09-21 | 梅建华 | Dry method paper cigarette filter candle and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 柯文方.热合无尘纸的研究开发.中国造纸 1.2000,(1),40-44. |
| 柯文方.热合无尘纸的研究开发.中国造纸 1.2000,(1),40-44. * |
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Owner name: SHANGHAI HUABAO BIOTECHNOLOGY CO., LTD. Free format text: FORMER OWNER: MEI JIANHUA Effective date: 20140610 |
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Effective date of registration: 20140610 Address after: 201821 Yecheng Road, Shanghai, No. 1299, No. Patentee after: Shanghai Huabao Biotechnology Co., Ltd. Address before: 200010, room 6, 506, left street, Huangpu, Shanghai Patentee before: Mei Jianhua |