CN102747454B - Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof - Google Patents
Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof Download PDFInfo
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- CN102747454B CN102747454B CN201210196243.8A CN201210196243A CN102747454B CN 102747454 B CN102747454 B CN 102747454B CN 201210196243 A CN201210196243 A CN 201210196243A CN 102747454 B CN102747454 B CN 102747454B
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Abstract
The invention relates to a filament bundle for a polylactic acid cigarette with a low filament bundle linear density, a preparation method thereof and an application thereof. The filament bundle for the polylactic acid cigarette is prepared through mixing polylactic acid master batches with titanium dioxide brightening master batches, and the filament bundle linear density, the monofilament linear density and the crispation number of the filament bundle are 0.4-1.5ktex, 2-6dtex and 20-30/25mm respectively. The filament bundle for the polylactic acid cigarette with a low filament bundle linear density can be mixed with a corresponding filament bundle (an acetate fiber filament bundle) for a cellulose diacetate cigarette to form a filter rod, so the application amount of the acetate fiber filament bundle is reduced, the insufficient situation of the filament bundle for the acetate fiber cigarette is alleviated, the cost is reduced, and the suction taste of the cigarette is maintained without a too large change. In addition, the pollution to the environment is reduced because polylactic acid has a biodegradable characteristic.
Description
Technical field
The technology of preparing that the invention belongs to cigarette filter filament, is specifically related to a kind of low tow line density PLA pipe tobacco and its preparation method and application.
Background technology
At present, the cigarette filter on market mainly contains two kinds of cellulose diacetate (vinegar fibre) filter tip and polypropylene filter tips.Cellulose acetate filter is a kind of function admirable, applies general filter tip, and occupation rate of market is in 90% left and right.Its raw materials for production wood pulp comes from high-quality timber, and China's Forest Resources is limited, and raw material can not be self-supporting, main dependence import at present, and cost is higher.In addition, vinegar fibre adopts solution spinning in the process of spinning, need to use a large amount of solvents, has both increased cost, again unavoidably to environment.Meanwhile, the biodegradation process of cellulose acetate is slow, and pollution on the environment just progressively comes into one's own.The more important thing is the continuous expansion along with domestic tobacco enterprise output, demand to the fine filter stick of vinegar also grows with each passing day, but domestic diacetate fiber manufacturing enterprise can not meet the demand of tobacco enterprise completely at present, cause the situation that vinegar is fine in short supply, limited to a certain extent further developing of China's tobacco business.
The third fibre is another filter-tip material of applying in the market, accounts for the market share of China 10%.Polypropylene fibre raw material is relatively cheap, has lower price.But the third fine filter tip has a lot of shortcomings, as larger in tow brute force, tow, compared with hard-to-break, connects mouth rate low, and otch is uneven, the easily loose hair of snuff, and smoke filtering effect is poor, the most important thing is, and its flue gas is jealous not to be widely accepted, and can only be used for some Low-end Cigarettes.In addition, polypropylene is long chain hydrocarbon, can not biodegradation, environment is caused to severe contamination.Therefore domestic tobacco business is progressively being eliminated propene fibre filter stick.
In sum, all there is certain drawback in two kinds of cigarette filter materials that use in the market, and along with propene fibre filter stick is progressively withdrawn from the market, the relation between supply and demand of the fine filter stick of vinegar will be more nervous, therefore, develop a kind of Novel tobacco filter-tip material significant to the sustainable development of China's tobacco business.
PLA is a kind of novel environment-friendly products, has good circular regeneration and biological degradability.It is take reproducible plant resources (corn, wheat, beet, rice, potato, sweet potato etc.) and organic waste (roots of corncob or other crops, stem, leaf, skin etc.) as raw material, break away from the dependence to timber and petroleum resources, met the requirement of international community's sustainable development.The energy consumption of PLA, lower than polypropylene and cellulose acetate, is a kind of macromolecular material of low-resource carrying capacity of environment.PLA can complete biodegradable, in natural environment, can natural decomposition be water and carbon dioxide through certain hour, do not cause environmental pollution, the carbon dioxide producing is re-used by the photosynthesis of plant, becoming a carbon cycle system eternal, sealing, is genuine " green material ".PLA has good processing characteristics, can adopt the spinning process of general thermoplastic to produce PLA tow, makes PLA be expected to become to prepare the suitable material of cigarette filter filament.
Therefore, PLA is had to following advantage for cigarette with filter-tip material: (1) saves the forest reserves and petroleum resources; (2) abundant raw material, renewable; (3) biodegradable, environmental protection; (4) energy resource consumption is low; (5) acid fiber by polylactic has polyester construction and large specific area, and adsorption effect is good, can adsorb the harmful substance in flue gas; (6) security is higher, and the material acid that PLA uses is contained in human body, to human body without any harm; (7) good processing and forming, the filter stick formation process of PLA tow is similar to the forming process of vinegar fibre, the third fibre, and cutting performance is better than the third fibre; (8) raw material of acid fiber by polylactic and production cost, lower than vinegar fibre, have certain advantage in price.
The at present domestic existing several pieces of patents about PLA pipe tobacco, 200610131699.0 introduced the technical process and the method that polylactic resin raw material are spun into PLA pipe tobacco, the tow line density 3～6ktex spinning, monofilament linear density is 2～6dtex, has introduced PLA pipe tobacco in 200710055310.3 and has prepared PLA filter stick for cigarettes through shredding, bonding, parcel, cutting and post processing.But also come with some shortcomings in these two pieces of patents, PLA filter stick formation is to use adhesive and plasticizer, in these two pieces of patents, polylactic acid plasticize agent used has taste, volatile, affects Sensory Quality of Cigarette, and the application for PLA pipe tobacco on cigarette produces larger restriction.In order to address this problem, a kind of preparation method of cigarette filter is provided in patent 201010151504.5, in the method, will after acid fiber by polylactic tow and diacetate fiber mixing, prepare cigarette filter.But in this patent, do not mention the preparation method of this PLA tow.
Summary of the invention
The low tow line density of one PLA pipe tobacco that object of the present invention is developed based on above-mentioned prior art just and its preparation method and application, this PLA tow can with corresponding diacetate fiber mixing filter stick formation, can reduce the consumption of diacetate fiber simultaneously, reduce costs, improve the biodegradability of filter stick.
The object of the invention is to be achieved through the following technical solutions: a kind of low tow line density PLA pipe tobacco, to be prepared from by PLA master batch and titanium dioxide brightening mother particle melting mixing, the tow line density of this tow is 0.4-1.5ktex, monofilament linear density is 2-6dtex, and crispation number is 20-30/25mm; Described PLA master batch is that levo form ratio is that 95-99%, melt index are 2-4g/10min, and fusing point is the PLA master batch of 163-173 ℃.
Low tow line density PLA pipe tobacco of the present invention is to be prepared from by following concrete steps:
1) be that 95-99%, melt index are 2-4g/10min by levo form ratio, fusing point is that the PLA master batch of 163-173 ℃ and titanium dioxide brightening mother particle are less than 200ppm to moisture after dry respectively;
2) at 200-210 ℃ by dried above-mentioned raw materials melting mixing, filtration, at 210-220 ℃ of melt spinning, spinnerets hole count is 1000-4000, spinneret orifice is Y type;
3) adopt air-cooling apparatus to carry out new spun tow cooling, DELION finish (TAKEMOTO OIL & FAT CO., LTD product) is coated in to tow surface to eliminate static;
4) be to be temporary in fiber barrel after 300-600m/min reels to tow in coiling speed;
5) in the water-bath of uniform temperature, tow is carried out to drawing-off, drawing temperature is 50-70 ℃, and drawing-off multiplying power is 2-2.5;
6) tow after counter extensioin carries out curlingly on the crimping machine of 7-9mm crimping wheel, and curling temperature is 80-90 ℃, and curling pressure is 20-30N;
7) the PLA tow that obtains low tow line density after the tow drying and shaping after curling, bake out temperature is at 60-70 ℃.
The present invention has the following advantages:
1. gained PLA tow tow line density is low, is 0.4-1.5Ktex, can with diacetate fiber mixing filter stick formation.Its mixing mechanism is as follows: filter stick is by 10000 rhizoid Shu Zucheng approximately altogether, for being mixed, vinegar fibre and PLA tow make rod, 1000-4000 root PLA tow (corresponding tow line density is about 0.4-1.5ktex) and the diacetate fiber of 6000-9000 root need to be mixed into rod, total dawn of existing PLA tow is that the tow radical that 3-6ktex is corresponding has all exceeded 8000, like this, if become rod after mixing with vinegar fibre, the amount that PLA tow accounts for is too many, and the plasticizer applying when institute filter stick formation can not make tow be bonded into rod.Therefore, the PLA tow of 3-6ktex is not suitable for being mixed into rod with diacetate fiber.In addition, the key of making the PLA tow of this low tow line density is in coiled up device, to have had improvement, improve exactly the width of crimping roller, change 7-9mm into by original crimping roller width 32-40mm, the PLA tow tow of producing meets and mixes filter stick formation needs, the consumption that can reduce diacetate fiber, reduces costs, and improves the biodegradability of filter stick.
2. owing to also not finding at present the specialty plasticiser of PLA pipe tobacco, by being mixed into rod with diacetate fiber, can solve tow bonding, curing problem.
The specific embodiment
The present invention is described further below with reference to embodiment, but content of the present invention is not limited to this.
Embodiment 1
Selecting a kind of levo form is 97%, and melt index is 3g/10min, and fusing point is that the PLA master batch of 170 ℃ and titanium dioxide brightening mother particle are dried to respectively moisture and are less than 200ppm.At 210 ℃, by dried above-mentioned raw materials melting mixing, filtration, at 215 ℃ of melt spinnings, spinnerets hole count is 1000, and spinneret orifice is Y type.Adopt air-cooling apparatus to carry out new spun tow cooling, finish is coated in to tow surface to eliminate static.After tow being reeled under the coiling speed of 500m/min, be temporary in fiber barrel.In the water-bath of 70 ℃, tow is carried out to drawing-off, drawing-off multiplying power is 2.5.Tow after counter extensioin carries out curling on the crimping machine of narrow crimping wheel, and curling temperature is 90 ℃, and curling pressure is 20N.After tow drying and shaping after curling, obtaining monofilament linear density is 3.67dtex, the PLA tow of tow line density 0.43ktex.The PLA tow of preparation and diacetate fiber are distinguished after shredding on filter-stick forming device, triacetyl glycerine is evenly sprayed onto to tow surface by 8% of tow weight, make diacetate fiber surface form a large amount of spot bonding points, after subsequently PLA tow being mixed with diacetate fiber, draw in, during by opium pipe part, wrapped up by forming paper, form cylindric filter bar, the mixing fiber tow filter rods that is certain length in tool bit part slitting.By this mixing fiber tow filter rods tipping cigarette, and the fine filter stick cigarette of vinegar contrasts, and its fume indication is in table 1.
Embodiment 2
Selecting a kind of levo form is 97%, and melt index is 3g/10min, and fusing point is that the PLA master batch of 170 ℃ and titanium dioxide brightening mother particle are dried to respectively moisture and are less than 200ppm.At 210 ℃, by dried above-mentioned raw materials melting mixing, filtration, at 215 ℃ of melt spinnings, spinnerets hole count is 2000, and spinneret orifice is Y type.Adopt air-cooling apparatus to carry out new spun tow cooling, finish is coated in to tow surface to eliminate static.After tow being reeled under the coiling speed of 500m/min, be temporary in fiber barrel.In the water-bath of 70 ℃, tow is carried out to drawing-off, drawing-off multiplying power is 2.5.Tow after counter extensioin carries out curling on the crimping machine of narrow crimping wheel, and curling temperature is 90 ℃, and curling pressure is 20N.After tow drying and shaping after curling, obtaining monofilament linear density is 3.89dtex, the PLA tow of tow line density 0.78ktex.The PLA tow of preparation and diacetate fiber are distinguished after shredding on filter-stick forming device, triacetyl glycerine is evenly sprayed onto to tow surface by 8% of tow weight, make diacetate fiber surface form a large amount of spot bonding points, after subsequently PLA tow being mixed with diacetate fiber, draw in, during by opium pipe part, wrapped up by forming paper, form cylindric filter bar, the mixing fiber tow filter rods that is certain length in tool bit part slitting.By this mixing fiber tow filter rods tipping cigarette, and the fine filter stick cigarette of vinegar contrasts, and its fume indication is in table 2.
Embodiment 3
Selecting a kind of levo form is 98%, and melt index is 3.1g/10min, and fusing point is that the PLA master batch of 175 ℃ and titanium dioxide brightening mother particle are dried to respectively moisture and are less than 200ppm.At 210 ℃, by dried above-mentioned raw materials melting mixing, filtration, at 215 ℃ of melt spinnings, spinnerets hole count is 1000, and spinneret orifice is Y type.Adopt air-cooling apparatus to carry out new spun tow cooling, finish is coated in to tow surface to eliminate static.After tow being reeled under the coiling speed of 500m/min, be temporary in fiber barrel.In the water-bath of 70 ℃, tow is carried out to drawing-off, drawing-off multiplying power is 2.5.Tow after counter extensioin carries out curling on the crimping machine of narrow crimping wheel, and curling temperature is 90 ℃, and curling pressure is 20N.After tow drying and shaping after curling, obtaining monofilament linear density is 3.89dtex, the PLA tow of tow line density 0.43ktex.The PLA tow of preparation and diacetate fiber are distinguished after shredding on filter-stick forming device, triacetyl glycerine is evenly sprayed onto to tow surface by 8% of tow weight, make diacetate fiber surface form a large amount of spot bonding points, after subsequently PLA tow being mixed with diacetate fiber, draw in, during by opium pipe part, wrapped up by forming paper, form cylindric filter bar, the mixing fiber tow filter rods that is certain length in tool bit part slitting.By this mixing fiber tow filter rods tipping cigarette, and the fine filter stick cigarette of vinegar contrasts, and its fume indication is in table 3.
Embodiment 4
Selecting a kind of levo form is 98%, and melt index is 3.1g/10min, and fusing point is that the PLA master batch of 175 ℃ and titanium dioxide brightening mother particle are dried to respectively moisture and are less than 200ppm.At 210 ℃, by dried above-mentioned raw materials melting mixing, filtration, at 215 ℃ of melt spinnings, spinnerets hole count is 3500, and spinneret orifice is Y type.Adopt air-cooling apparatus to carry out new spun tow cooling, finish is coated in to tow surface to eliminate static.After tow being reeled under the coiling speed of 500m/min, be temporary in fiber barrel.In the water-bath of 70 ℃, tow is carried out to drawing-off, drawing-off multiplying power is 2.5.Tow after counter extensioin carries out curling on the crimping machine of narrow crimping wheel, and curling temperature is 90 ℃, and curling pressure is 20N.After tow drying and shaping after curling, obtaining monofilament linear density is 3.89dtex, the PLA tow of tow line density 1.1ktex.The PLA tow of preparation and diacetate fiber are distinguished after shredding on filter-stick forming device, triacetyl glycerine is evenly sprayed onto to tow surface by 8% of tow weight, make diacetate fiber surface form a large amount of spot bonding points, after subsequently PLA tow being mixed with diacetate fiber, draw in, during by opium pipe part, wrapped up by forming paper, form cylindric filter bar, the mixing fiber tow filter rods that is certain length in tool bit part slitting.By this mixing fiber tow filter rods tipping cigarette, and the fine filter stick cigarette of vinegar contrasts, and its fume indication is in table 4.
Claims (1)
1. the preparation method of one kind low tow line density PLA pipe tobacco, it is characterized in that: this pipe tobacco is to be prepared from by PLA master batch and titanium dioxide brightening mother particle melting mixing, the tow line density of this tow is 0.4-1.5ktex, monofilament linear density is 2-6dtex, and crispation number is 20-30/25mm; PLA master batch is that levo form ratio is that 95-99%, melt index are 2-4g/10min, and fusing point is the PLA master batch of 163-173 ℃; Concrete preparation method's step is as follows:
1) be that 95-99%, melt index are 2-4g/10min by levo form ratio, fusing point is that the PLA master batch of 163-173 ℃ and titanium dioxide brightening mother particle are less than 200ppm to moisture after dry respectively;
2) at 200-210 ℃ by dried above-mentioned raw materials melting mixing, filtration, at 210-220 ℃ of melt spinning, spinnerets hole count is 1000-4000, spinneret orifice is Y type;
3) adopt air-cooling apparatus to carry out new spun tow cooling, finish is coated in to tow surface to eliminate static;
4) be to be temporary in fiber barrel after 300-600m/min reels to tow in coiling speed;
5) in the water-bath of uniform temperature, tow is carried out to drawing-off, drawing temperature is 50-70 ℃, and drawing-off multiplying power is 2-2.5;
6) tow after counter extensioin carries out curlingly on the crimping machine of 7-9mm crimping wheel, and curling temperature is 80-90 ℃, and curling pressure is 20-30N;
7) the PLA tow that obtains low tow line density after the tow drying and shaping after curling, bake out temperature is at 60-70 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210196243.8A CN102747454B (en) | 2012-06-14 | 2012-06-14 | Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210196243.8A CN102747454B (en) | 2012-06-14 | 2012-06-14 | Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof |
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| CN102747454A CN102747454A (en) | 2012-10-24 |
| CN102747454B true CN102747454B (en) | 2014-05-21 |
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| CN104153080B (en) * | 2014-08-11 | 2016-10-12 | 浙江中烟工业有限责任公司 | A kind of fall burnt cigarette filter rod single denier tow of mixing and its preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961765A (en) * | 2006-11-30 | 2007-05-16 | 中国科学院长春应用化学研究所 | A cigarette filter filament and preparation method thereof |
| CN101805937A (en) * | 2010-03-18 | 2010-08-18 | 上海同杰良生物材料有限公司 | Filament bundle for degrading cigarette, preparation method thereof, and preparation method of filter stick |
| CN101816456A (en) * | 2010-04-20 | 2010-09-01 | 云南富集生物材料科技有限公司 | Cigarette filter tip composite material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961765A (en) * | 2006-11-30 | 2007-05-16 | 中国科学院长春应用化学研究所 | A cigarette filter filament and preparation method thereof |
| CN101805937A (en) * | 2010-03-18 | 2010-08-18 | 上海同杰良生物材料有限公司 | Filament bundle for degrading cigarette, preparation method thereof, and preparation method of filter stick |
| CN101816456A (en) * | 2010-04-20 | 2010-09-01 | 云南富集生物材料科技有限公司 | Cigarette filter tip composite material and preparation method thereof |
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Address after: 450001 No. 2 Fengyang Street, Zhengzhou High-tech Zone, Henan Province Co-patentee after: Jiangsu Heji Tobacco Material Co., Ltd. Patentee after: Zhengzhou Tobacco Research Institute of CNTC Co-patentee after: Hongta Tobacco (Group) Co., Ltd. Address before: 450001 No. 2 Fengyang Street, Zhengzhou High-tech Zone, Henan Province Co-patentee before: Jiangsu Tianshengda Group Wuxi New Synthetic Fibre Co., Ltd. Patentee before: Zhengzhou Tobacco Research Institute of CNTC Co-patentee before: Hongta Tobacco (Group) Co., Ltd. |