CN1101085A - Modulated polypropene tow for tobacco and preparation method thereof - Google Patents
Modulated polypropene tow for tobacco and preparation method thereof Download PDFInfo
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- CN1101085A CN1101085A CN 94103458 CN94103458A CN1101085A CN 1101085 A CN1101085 A CN 1101085A CN 94103458 CN94103458 CN 94103458 CN 94103458 A CN94103458 A CN 94103458A CN 1101085 A CN1101085 A CN 1101085A
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- tow
- polypropylene
- polypropene
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Abstract
The present invention relates to a modified polypropylene tow for cigarette-filter and its preparation method. the discribed modified polypropylene mainly contains pore-forming agent, high polymer with polar group, rheologic regulating agent and polypropylene, and when preparing, its partial raw materials are mixed in a certain proportion, and granulated, and then mixed with polypropylene in a certain proportion, and spun. The interior of said product contains a special fibre structure, so that it has a special and notable filtering effect for main carcinogenic substance- 3.4 benzopyrene being in the smoke tar, and can reach the low-toxic requirement of cigarette.
Description
The present invention relates to a kind of modulated polypropene tow for tobacco and preparation method thereof.
At present, along with improving constantly of social civilization degree, tobacco business is more and more paid attention to for the selection of cigarette filter tip material, to the requirement of this kind material yes should its good filtration effect, its intensity is suitable again.What cigarette filter tip material the earliest mainly adopted is acetate fiber, but reason such as, complex manufacturing limited owing to its raw material, investment be bigger, material replaces ［ to be called for short PP ］ by polypropylene gradually in recent years.The cigaratte filter that is made by virgin pp has cut-off filter preferably to the T/N in the flue gas, and nontoxic free from extraneous odour can satisfy the requirement of cigarette filter material substantially.But, directly use PP also to exist many shortcomings, do not descend as brute force and elongation owing to the PP main body, tow is than hard-to-break, and mechanical abrasion is bigger; And for example after measured, PP is relatively poor to the cut-off filter of main carcinogenic composition 3.4 BaPs in the tarry matters in smoke, and the combination property of filter tip is not ideal enough.At present; though worked out novel MODIFIED PP, promptly in PP, add the macromolecular compound of acetyl group or add some inorganic fillers again, these can only improve the powerful and elongation of pure PP; improve its processing characteristics, and do not solve its cut-off filter carcinogenic composition.
The purpose of this invention is to provide a kind ofly has the cigarette of special cut-off filter effect MODIFIED PP tow to main carcinogenic composition 3.4 BaPs in the tarry matters in smoke.
This cigarette is to be made by pore former (being called for short A), the high polymer (being called for short B) that has polar group, rheology control agent (being called for short C) and polypropylene with the MODIFIED PP tow, and wherein the chemical formula of pore former is
R in the formula
1, R
2For hydrogen or carbon number are the alkyl of 1-12, n is any positive integer; The chemical formula that has the high polymer of polar group is
R in the formula
3, R
4Be hydrogen, ester group, sulfonic group, hydroxyl, x, y are any positive integer; The chemical composition of rheology control agent is a kind of random copolymer.
Described pore former and PP are incompatible, be the fento shape and distribute in blend, are easy to generate during shaping to be separated, and make fiber surface and inner a large amount of micropores and crack, the R in its chemical formula of forming
1, R
2Can be carbon number and be 1,6,7,10 alkyl.
Described high polymer and the PP that has a polar group is incompatible, is the island and distributes the R in its chemical formula in blend
3, R
4Can be ethyl ester, acrylate, stearate.
Described rheology control agent and PP, A composition, B composition all have certain compatibility, can improve the spinnability of blend, it can comprise the copolymer of copolyalkenamer (as ethylene propylene copolymer, ethylene, propylene butadiene copolymer, ethylene, propylene styrol copolymer) or alkene derivatives.
This modulated polypropene tow for tobacco not only has good cut-off filter to tar, the nicotine of flue gas, especially main carcinogenic composition 3.4 BaPs in the tarry matters in smoke there are special, tangible cut-off filter effect, its effect surpasses virgin pp and acetate fiber, reaches the low toxicity effect, has the sweet-smelling taste simultaneously.
Described modulated polypropene tow for tobacco is preparation like this: pore former (A), the high polymer (B) that has polar group, rheology control agent (C) and a small amount of polypropylene (PP) by this routine mixing granulation, are carried out co-blended spinning with polypropylene again.
Described mixing granulation process is that various raw materials are mixed according to the ratio (weight ratio) of A: B: C: PP=30-60: 10-30: 15-35: 10-40, and granulation under 190-260 ℃ temperature obtains modified master batch.
Described co-blended spinning process is with the ratio blend according to modified master batch: PP=2-12: 88-98 of modified master batch and polypropylene, and its spinning temperature reduces with the increase of modified master batch addition, generally than low 5-10 ℃ of virgin pp spinning temperature, spinning under 220-280 ℃ temperature obtains cigarette MODIFIED PP tow.
The pipe tobacco that makes with this preparation method has the specific form structure, along fiber axis to the slubbing that many random distribution are arranged, there is the hole of many 0.1-3 μ m that form because of being separated inside, fiber surface also has many micropores, hole, crack and groove, the pore-size distribution broad, between 0.1-10 μ m, crack and groove inside are network-like, and these all have special cut-off filter effect to 3.4 BaPs in the tarry matters in smoke.
Below in conjunction with embodiment the present invention is described in more detail.
Embodiment
A kind of modulated polypropene tow for tobacco of being made by pore former, the high polymer that has polar group, rheology control agent and polypropylene, wherein the chemical formula of pore former (A) is
R in the formula
1, R
2For hydrogen or carbon number are the alkyl of 1-12, n is any positive integer; The chemical formula that has the high polymer (B) of polar group is
R in the formula
3, R
4Be hydrogen, ester group, sulfonic group, hydroxyl, x, y are any positive integer; Rheology control agent (C) is the ethylene, propylene butadiene copolymer.
During preparation, earlier in A: B: C: PP=36: 14: 25: 14 ratio is mixed A, B, C, PP, under 220 ℃ temperature, make modified master batch with two ascarid bar extruders, again with modified master batch: PP=4.2: 95.8 ratio under 265 ℃ of temperature with the PP co-blended spinning, spinning spinneret is the annular slab in 10194 holes, spinneret orifice is a trilobal cross, the spinneret draft multiple is 84.3 times, ring blowing temperature is 12 ℃, and the after-drawing temperature is 95 ℃, and the after-drawing multiple is 2.9 times.Be carried out to rod and connect mouth processing all very well with this tow, become rod amount (holding in both hands long 120mm) to reach 1,370,000/ton fibers, its physical index and flue gas analysis result, surpass virgin pp, to 3.4 BaP cut-off filter performance measurement results in the tarry matters in smoke, 3.4 BaP content are chewed than the virgin pp filter and are reduced 53% in every cigarette, chew than the acetate fiber filter and reduce 52.15%.
Claims (8)
1, a kind of modulated polypropene tow for tobacco is characterized in that it is to be made by pore former, the high polymer that has polar group, rheology control agent and polypropylene, and wherein the chemical formula of pore former is
R in the formula
1, R
2For hydrogen or carbon number are the alkyl of 1-12, n is any positive integer; The chemical formula that has the high polymer of polar group is
R in the formula
3, R
4Be hydrogen, ester group, sulfonic group, hydroxyl, x, y are any positive integer; The chemical composition of rheology control agent is a kind of random copolymer.
2, modulated polypropene tow as claimed in claim 1 is characterized in that the R in the described pore former chemical formula
1, R
2It for carbon number 1,6,7,10 alkyl.
3, modulated polypropene tow as claimed in claim 1 is characterized in that the R in the described polymer chemistry formula that has a polar group
3, R
4Be ethyl ester, acrylate, stearate.
4, modulated polypropene tow as claimed in claim 1 is characterized in that described rheology control agent is the copolymer of copolyalkenamer or alkene derivatives.
5, modulated polypropene tow as claimed in claim 4 is characterized in that described copolyalkenamer is ethylene propylene copolymer, ethylene, propylene butadiene copolymer, ethylene, propylene styrol copolymer.
6,, it is characterized in that pore former, the high polymer that has polar group, rheology control agent and a small amount of polypropylene mixing granulation is in proportion carried out co-blended spinning with polypropylene again as the preparation method of any one modulated polypropene tow among the claim 1-5.
7, preparation method as claimed in claim 6 is characterized in that described mixing granulation process is according to pore former with granulating raw material; The ratio of the high polymer that has polar group: rheology control agent: polypropylene=30-60: 10-30: 15-35: 10-40 (weight ratio) is mixed, and makes modified master batch under 190-260 ℃ temperature.
8, preparation method as claimed in claim 6 is characterized in that described co-blended spinning process is according to modified master batch with modified master batch and polypropylene; The ratio blend of polypropylene=2-12: 88-98, spinning under 220-280 ℃ temperature is made a temperature than virgin pp and is reduced 5-10 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94103458 CN1101085A (en) | 1994-04-15 | 1994-04-15 | Modulated polypropene tow for tobacco and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94103458 CN1101085A (en) | 1994-04-15 | 1994-04-15 | Modulated polypropene tow for tobacco and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1101085A true CN1101085A (en) | 1995-04-05 |
Family
ID=5031081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94103458 Pending CN1101085A (en) | 1994-04-15 | 1994-04-15 | Modulated polypropene tow for tobacco and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487150B (en) * | 2009-02-19 | 2011-08-17 | 湖北金叶玉阳化纤有限公司 | Preparation of fibre beam for polypropylene cigarette containing water-soluble high polymer |
| WO2012139355A1 (en) * | 2011-04-15 | 2012-10-18 | 大亚科技股份有限公司 | Charcoal-containing polypropylene tow for cigarette and preparation method thereof |
-
1994
- 1994-04-15 CN CN 94103458 patent/CN1101085A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487150B (en) * | 2009-02-19 | 2011-08-17 | 湖北金叶玉阳化纤有限公司 | Preparation of fibre beam for polypropylene cigarette containing water-soluble high polymer |
| WO2012139355A1 (en) * | 2011-04-15 | 2012-10-18 | 大亚科技股份有限公司 | Charcoal-containing polypropylene tow for cigarette and preparation method thereof |
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