CN105624818A - Preparing method for modified viscose staple fiber cigarette filter material - Google Patents
Preparing method for modified viscose staple fiber cigarette filter material Download PDFInfo
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- CN105624818A CN105624818A CN201510997519.6A CN201510997519A CN105624818A CN 105624818 A CN105624818 A CN 105624818A CN 201510997519 A CN201510997519 A CN 201510997519A CN 105624818 A CN105624818 A CN 105624818A
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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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/10—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a carbohydrate
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/0004—Oxidoreductases (1.)
- C12N9/0065—Oxidoreductases (1.) acting on hydrogen peroxide as acceptor (1.11)
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y111/00—Oxidoreductases acting on a peroxide as acceptor (1.11)
- C12Y111/01—Peroxidases (1.11.1)
- C12Y111/01006—Catalase (1.11.1.6)
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
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Abstract
The invention discloses a preparing method for a modified viscose staple fiber cigarette filter material, and belongs to the field of staple fiber material preparation. The preparing method includes the steps that catalase is separated out of beef livers and fixed with porous starch, viscose staple fibers are prepared from bamboo pulp and supplemented with the fixed catalase, and the modified viscose staple fiber cigarette filter material is obtained after spinning. It is proved through instances that the preparing method is easy to operate, the raw materials are low in price, and the prepared modified viscose staple fiber cigarette filter material can degrade by itself, will not damage the environment, can efficiently filter 25-30% of free radicals and tar generated in cigarettes, improves the mouthfeel of smoking of the cigarettes and reduces damage of the cigarettes to the human body.
Description
Technical field
The present invention discloses the preparation method of a kind of modification viscose staple fibre cigarette filter tip material, belongs to short fiber material preparation field.
Background technology
Smoking is day by day obvious with scientific development to the harm of human body. Group part of flue gas has allow thousands of compounds, and their Lie Jie districts after cigarette burning district generate, and enter in the process in smoker's body at flue gas, and temperature is down to normal temperature from 900 DEG C, has organic half volatile matter and the non-volatile matter of 10% to be condensed into particulate. And have the flue gas of 90% to be exist with gas phase. In mid-term in 19th century, for reducing the toxicity of cigarette, filter-tip mode installed by employing cigarette and organizes part mutually with particulate in elimination flue gas. Cigarette was adopted the goods and materials having paper, natural fiber etc. tasteless, nontoxic as filter-tip material at that time. But the development along with cigarette with filter tip, filter tip be also been proposed new requirement and wishes the efficient elimination toxic substance of energy and can retain a certain amount of nicotine by human consumer, it is desirable to filter-tip material has the character of selective filter.
Cellulose acetate tow filter tip because of have fall Jiaozhuo with obviously, the advantage times tobacco industry such as comfortable taste accepts extensively, but due to the restriction such as raw material sources and preparation technology, its price is relatively high, it is not easy to degrade under physical environment, a large amount of production can cause environmental pollution, reclaims difficulty. And the demand of China is very big. Polypropylene fibre has congenital textural defect so that the third fine filter tip can only use at present on low-grade cigarette. Tobacco industry is adjusted by country, the low-grade cigarette of compression, the production developing emphatically medium-to-high grade cigarette, the total amount of country's cigarette remains unchanged at present, and low-grade cigarette accounts for 80% at present, make great efforts to improve the ratio of medium-to-high grade cigarette, and burnt object is fallen further in order to reach, increase filter tip, therefore the fine demand of vinegar is surged, vinegar fibre faces unprecedented pressure, and the third fine pressure not alleviating vinegar fibre from basic navigation, therefore, development of new tobacco special filter material is extremely urgent.
The raw material resources that have viscose fiber can repeat regeneration, degradable under physical environment, it it is a kind of environmental type material, current viscose fiber market value maintains about 15000 yuan/t, and the about 35000 yuan/t of cellulose acetate price, tobacco industry year filter material demand is 200,000 tons, if replacing cellulose acetate as cigarette filter material with viscose fiber, 4,000,000,000 yuan can be saved every year, can greatly reduce cigarette cost, therefore, viscose fiber can be increased economic efficiency greatly as cigarette filter replacement cellulose acetate.
Summary of the invention
The technical problem that the present invention mainly solves: although falling Jiaozhuo with obviously for the cellulose acetate material that current cigaratte filter is conventional, comfortable taste, but exist expensive, it is not easy under physical environment and degrades, a large amount of production can cause problem of environmental pollution, and traditional cigarette holder filter material cannot efficient elimination toxic substance, retain the present situation of a certain amount of nicotine, provide one to obtain catalase by separation from ox liver and be fixed with porous-starch, again with the obtained viscose staple fibre of bamboo pulp, it is aided with immobilized catalase, the preparation method of modification viscose staple fibre spinning cigarette filter tip material is obtained after spinning. the method operating procedure is easy, cost of material is lower, not only obtained modification viscose staple fibre spinning cigarette filter tip material can be degraded voluntarily, environment can not be caused harm, and the toxic substance that can efficiently produce in elimination cigarette, improve the mouthfeel sucking cigarette, reduce cigarette to the harm of human body, and adding of immobilized catalase can efficiently catalyzing and oxidizing reduction reaction, its red sanguinin group can specially CO absorption, the small molecules obnoxious flavoures such as NO, can effectively remove and reduce cigarette gaseous phase free radical and tar, with viscose fiber conbined usage, there is good filter effect.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) 100��200g fresh beef liver is taken, the fragment of 1��3cm is shredded into scissors, put into 2L vial, add phosphoric acid buffer and 15��20g polyvinylpyrrolidone that 500��700mLpH is 6��7, put into high-speed homogenization machine, with the rotating speed high-speed homogenization 1��3min of 20000��22000r/min;
(2) after homogenate terminates, slurries are moved in beaker, it is placed in ice-water bath, 1��2h is left standstill at 4��6 DEG C, and draw 150��200mL supernatant liquid with syringe and put into horizontal centrifuge, with the centrifugal 10��15min of the rotating speed of 12000��14000r/min, it is catalase mother liquor that separation obtains supernatant liquor, preserves at 4��6 DEG C;
(3) it is that porous-starch is added in supernatant liquor by 2:5 by solid-to-liquid ratio, it is placed in vortex oscillation instrument under normal temperature, with the power of 10��20W, the rate oscillation absorption 7��9h of 200��400rmp/min, put into ice-water bath hold over night, it is precipitated with the rotating speed centrifugation of 12000��14000r/min, puts into B��chner funnel, take out filter 3��5 times with deionized water repetitive scrubbing, after naturally drying, obtain porous-starch immobilized catalase powder;
(4) cizu is got, with chopper by its cutting growth 2cm, the bamboo sheet of wide 1cm, first with the swelling 20��24h of distilled water immersion, it is that 1:10 is added in the acetum that mass concentration is 5% by solid-to-liquid ratio again, put into thermostat container, with temperature rise rate temperature programming to 120��140 DEG C of 2��4 DEG C/min, insulation hydrolysis 2��6h;
(5) the bamboo block fiber after hydrolysis is poured in digester, add the sodium hydroxide of its quality 5��10% and the sodium sulphite of 3��5%, and add distilled water until by mixture submergence, it is warming up to 100��110 DEG C of boiling 3��5h, boiling is pulled an oar after terminating, bleaching, put into pressure filter, after the pressure extrusion filter water of 0.3��0.5MPa, to put into baking oven and to be dried to constant weight at 105��110 DEG C, the obtained thin slice shape slurry dregs of rice;
(6) get the above-mentioned slurry dregs of rice of 300��500g and put into the caustic soda soln that 1��2L temperature is 60��70 DEG C, it is placed on shaking table to vibrate dipping 2��3h, dipping puts into experienced drum experienced 12��18h at 30��35 DEG C after terminating, reduce temperature to 20��25 DEG C again, add 50��60mL dithiocarbonic anhydride, filter to obtain filter residue after sulfonation reaction 100��120min, it is that filter residue is poured in the sodium hydroxide solution that concentration is 0.01mol/L by 2:3 by solid-to-liquid ratio, stirs with glass stick and form viscose staple fibre blend spinning liquid;
(7) above-mentioned obtained spinning solution is put into device for spinning stationary tank, it is that 1:3 adds porous-starch immobilized catalase powder by solid-to-liquid ratio, stirring to be extruded by spinning solution infusion pump after evenly and spray by spinning nozzle, the spinning solution jet of ejection is cured and forms modification viscose staple fibre spinning cigarette filter tip material.
Described spinning jet curing be the aqueous solution being made into as 5:1 in mass ratio using sulfuric acid and sodium sulfate as precipitation bath, spinning jet is solidified.
The application method of the present invention is: during use, modification viscose staple fibre spinning cigarette filter tip material the present invention obtained makes cigaratte filter, install on cigarette,, after lighting, find after testing, in the flue gas after the cigarette filter tip material filtration that the present invention obtains, tar compared with traditional cigarette filter tip material, reduces 25��30% with free-radical contents.
The invention has the beneficial effects as follows:
(1) operation is simple in the present invention, and original cost price is lower, is applicable to scale operation;
(2) the modification viscose staple fibre spinning cigarette filter tip material obtained by the present invention after a procedure can natural degradation, environment can not be caused harm;
(3) the modification viscose staple fibre spinning cigarette filter tip material material that the present invention obtains, Filtration Adsorption ability is strong, it is possible to the toxic substance produced in efficient elimination cigarette, improves the mouthfeel sucking cigarette, reduces cigarette to the harm of human body.
Embodiment
First 100��200g fresh beef liver is taken, the fragment of 1��3cm is shredded into scissors, put into 2L vial, add phosphoric acid buffer and 15��20g polyvinylpyrrolidone that 500��700mLpH is 6��7, put into high-speed homogenization machine, with the rotating speed high-speed homogenization 1��3min of 20000��22000r/min; After homogenate terminates, slurries are moved in beaker, it is placed in ice-water bath, 1��2h is left standstill at 4��6 DEG C, and draw 150��200mL supernatant liquid with syringe and put into horizontal centrifuge, with the centrifugal 10��15min of the rotating speed of 12000��14000r/min, it is catalase mother liquor that separation obtains supernatant liquor, preserves at 4��6 DEG C; Then it is that porous-starch is added in supernatant liquor by 2:5 by solid-to-liquid ratio, it is placed in vortex oscillation instrument under normal temperature, with the power of 10��20W, the rate oscillation absorption 7��9h of 200��400rmp/min, put into ice-water bath hold over night, it is precipitated with the rotating speed centrifugation of 12000��14000r/min, puts into B��chner funnel, take out filter 3��5 times with deionized water repetitive scrubbing, after naturally drying, obtain porous-starch immobilized catalase powder; Get a cizu afterwards, with chopper by its cutting growth 2cm, the bamboo sheet of wide 1cm, first with the swelling 20��24h of distilled water immersion, it is that 1:10 is added in the acetum that mass concentration is 5% by solid-to-liquid ratio again, put into thermostat container, with temperature rise rate temperature programming to 120��140 DEG C of 2��4 DEG C/min, insulation hydrolysis 2��6h; Bamboo block fiber after hydrolysis is poured in digester, add the sodium hydroxide of its quality 5��10% and the sodium sulphite of 3��5%, and add distilled water until by mixture submergence, it is warming up to 100��110 DEG C of boiling 3��5h, boiling is pulled an oar after terminating, bleaching, put into pressure filter, after the pressure extrusion filter water of 0.3��0.5MPa, to put into baking oven and to be dried to constant weight at 105��110 DEG C, the obtained thin slice shape slurry dregs of rice; Next get the above-mentioned slurry dregs of rice of 300��500g and put into the caustic soda soln that 1��2L temperature is 60��70 DEG C, it is placed on shaking table to vibrate dipping 2��3h, dipping puts into experienced drum experienced 12��18h at 30��35 DEG C after terminating, reduce temperature to 20��25 DEG C again, add 50��60mL dithiocarbonic anhydride, filter residue is filtered to obtain after sulfonation reaction 100��120min, it is that filter residue is poured in the sodium hydroxide solution that concentration is 0.01mol/L by 2:3 by solid-to-liquid ratio, stirs with glass stick and form viscose staple fibre blend spinning liquid; Finally above-mentioned obtained spinning solution is put into device for spinning stationary tank, it is that 1:3 adds porous-starch immobilized catalase powder by solid-to-liquid ratio, stirring to be extruded by spinning solution infusion pump after evenly and spray by spinning nozzle, the spinning solution jet of ejection is cured and forms modification viscose staple fibre spinning cigarette filter tip material. Wherein said spinning jet curing be the aqueous solution being made into as 5:1 in mass ratio using sulfuric acid and sodium sulfate as precipitation bath, spinning jet is solidified.
Example 1
First take 100g fresh beef liver, shredded into the fragment of 1cm with scissors, put into 2L vial, add phosphoric acid buffer and 15g polyvinylpyrrolidone that 500mLpH is 6, put into high-speed homogenization machine, with the rotating speed high-speed homogenization 1min of 20000r/min; After homogenate terminates, slurries are moved in beaker, it is placed in ice-water bath, at 4 DEG C, leave standstill 1h, and draw 150mL supernatant liquid with syringe and put into horizontal centrifuge, with the centrifugal 10min of the rotating speed of 12000r/min, it is catalase mother liquor that separation obtains supernatant liquor, preserves at 4 DEG C; Then it is that porous-starch is added in supernatant liquor by 2:5 by solid-to-liquid ratio, it is placed in vortex oscillation instrument under normal temperature, with the power of 10W, the rate oscillation absorption 7h of 200rmp/min, put into ice-water bath hold over night, it is precipitated with the rotating speed centrifugation of 12000r/min, puts into B��chner funnel, take out filter 3 times with deionized water repetitive scrubbing, after naturally drying, obtain porous-starch immobilized catalase powder; Get a cizu afterwards, with chopper by its cutting growth 2cm, the bamboo sheet of wide 1cm, first with the swelling 20h of distilled water immersion, it is that 1:10 is added in the acetum that mass concentration is 5% by solid-to-liquid ratio again, put into thermostat container, with the temperature rise rate temperature programming to 120 DEG C of 2 DEG C/min, insulation hydrolysis 2h; Bamboo block fiber after hydrolysis is poured in digester, add the sodium hydroxide of its quality 5% and the sodium sulphite of 3%, and add distilled water until by mixture submergence, it is warming up to 100 DEG C of boiling 3h, boiling is pulled an oar after terminating, bleaching, put into pressure filter, after the pressure extrusion filter water of 0.3MPa, to put into baking oven and to be dried to constant weight at 105 DEG C, the obtained thin slice shape slurry dregs of rice; Next get the above-mentioned slurry dregs of rice of 300g and put into the caustic soda soln that 1L temperature is 60 DEG C, be placed on shaking table vibration dipping 2h, dipping puts into experienced drum experienced 12h at 30 DEG C after terminating, reduce temperature to 20 DEG C again, add 50mL dithiocarbonic anhydride, filter to obtain filter residue after sulfonation reaction 100min, it is that filter residue is poured in the sodium hydroxide solution that concentration is 0.01mol/L by 2:3 by solid-to-liquid ratio, stirs with glass stick and form viscose staple fibre blend spinning liquid; Finally above-mentioned obtained spinning solution is put into device for spinning stationary tank, it is that 1:3 adds porous-starch immobilized catalase powder by solid-to-liquid ratio, stirring to be extruded by spinning solution infusion pump after evenly and spray by spinning nozzle, the spinning solution jet of ejection is cured and forms modification viscose staple fibre spinning cigarette filter tip material.
This example operation is simple, during use, modification viscose staple fibre spinning cigarette filter tip material the present invention obtained makes cigaratte filter, install on cigarette, after lighting, find after testing, in flue gas after the cigarette filter tip material filtration that the present invention obtains, tar compared with traditional cigarette filter tip material, reduces 25% with free-radical contents.
Example 2
First take 150g fresh beef liver, shredded into the fragment of 2cm with scissors, put into 2L vial, add phosphoric acid buffer and 18g polyvinylpyrrolidone that 600mLpH is 6.5, put into high-speed homogenization machine, with the rotating speed high-speed homogenization 2min of 21000r/min; After homogenate terminates, slurries are moved in beaker, it is placed in ice-water bath, at 5 DEG C, leave standstill 1.5h, and draw 180mL supernatant liquid with syringe and put into horizontal centrifuge, with the centrifugal 13min of the rotating speed of 13000r/min, it is catalase mother liquor that separation obtains supernatant liquor, preserves at 5 DEG C; Then it is that porous-starch is added in supernatant liquor by 2:5 by solid-to-liquid ratio, it is placed in vortex oscillation instrument under normal temperature, with the power of 15W, the rate oscillation absorption 8h of 300rmp/min, put into ice-water bath hold over night, it is precipitated with the rotating speed centrifugation of 13000r/min, puts into B��chner funnel, take out filter 4 times with deionized water repetitive scrubbing, after naturally drying, obtain porous-starch immobilized catalase powder; Get a cizu afterwards, with chopper by its cutting growth 2cm, the bamboo sheet of wide 1cm, first with the swelling 22h of distilled water immersion, it is that 1:10 is added in the acetum that mass concentration is 5% by solid-to-liquid ratio again, put into thermostat container, with the temperature rise rate temperature programming to 130 DEG C of 3 DEG C/min, insulation hydrolysis 4h; Bamboo block fiber after hydrolysis is poured in digester, add the sodium hydroxide of its quality 8% and the sodium sulphite of 4%, and add distilled water until by mixture submergence, it is warming up to 105 DEG C of boiling 4h, boiling is pulled an oar after terminating, bleaching, put into pressure filter, after the pressure extrusion filter water of 0.4MPa, to put into baking oven and to be dried to constant weight at 108 DEG C, the obtained thin slice shape slurry dregs of rice; Next get the above-mentioned slurry dregs of rice of 400g and put into the caustic soda soln that 1.5L temperature is 65 DEG C, be placed on shaking table vibration dipping 2.5h, dipping puts into experienced drum experienced 16h at 33 DEG C after terminating, reduce temperature to 23 DEG C again, add 55mL dithiocarbonic anhydride, filter to obtain filter residue after sulfonation reaction 110min, it is that filter residue is poured in the sodium hydroxide solution that concentration is 0.01mol/L by 2:3 by solid-to-liquid ratio, stirs with glass stick and form viscose staple fibre blend spinning liquid; Finally above-mentioned obtained spinning solution is put into device for spinning stationary tank, it is that 1:3 adds porous-starch immobilized catalase powder by solid-to-liquid ratio, stirring to be extruded by spinning solution infusion pump after evenly and spray by spinning nozzle, the spinning solution jet of ejection is cured and forms modification viscose staple fibre spinning cigarette filter tip material.
This example operation is simple, during use, modification viscose staple fibre spinning cigarette filter tip material the present invention obtained makes cigaratte filter, install on cigarette, after lighting, find after testing, in flue gas after the cigarette filter tip material filtration that the present invention obtains, tar compared with traditional cigarette filter tip material, reduces 28% with free-radical contents.
Example 3
First take 200g fresh beef liver, shredded into the fragment of 3cm with scissors, put into 2L vial, add phosphoric acid buffer and 20g polyvinylpyrrolidone that 700mLpH is 7, put into high-speed homogenization machine, with the rotating speed high-speed homogenization 3min of 22000r/min; After homogenate terminates, slurries are moved in beaker, it is placed in ice-water bath, at 6 DEG C, leave standstill 2h, and draw 200mL supernatant liquid with syringe and put into horizontal centrifuge, with the centrifugal 15min of the rotating speed of 14000r/min, it is catalase mother liquor that separation obtains supernatant liquor, preserves at 6 DEG C; Then it is that porous-starch is added in supernatant liquor by 2:5 by solid-to-liquid ratio, it is placed in vortex oscillation instrument under normal temperature, with the power of 20W, the rate oscillation absorption 9h of 400rmp/min, put into ice-water bath hold over night, it is precipitated with the rotating speed centrifugation of 14000r/min, puts into B��chner funnel, take out filter 5 times with deionized water repetitive scrubbing, after naturally drying, obtain porous-starch immobilized catalase powder; Get a cizu afterwards, with chopper by its cutting growth 2cm, the bamboo sheet of wide 1cm, first with the swelling 24h of distilled water immersion, it is that 1:10 is added in the acetum that mass concentration is 5% by solid-to-liquid ratio again, put into thermostat container, with the temperature rise rate temperature programming to 140 DEG C of 4 DEG C/min, insulation hydrolysis 6h; Bamboo block fiber after hydrolysis is poured in digester, add the sodium hydroxide of its quality 10% and the sodium sulphite of 5%, and add distilled water until by mixture submergence, it is warming up to 110 DEG C of boiling 5h, boiling is pulled an oar after terminating, bleaching, put into pressure filter, after the pressure extrusion filter water of 0.5MPa, to put into baking oven and to be dried to constant weight at 110 DEG C, the obtained thin slice shape slurry dregs of rice; Next get the above-mentioned slurry dregs of rice of 500g and put into the caustic soda soln that 2L temperature is 70 DEG C, be placed on shaking table vibration dipping 3h, dipping puts into experienced drum experienced 18h at 35 DEG C after terminating, reduce temperature to 25 DEG C again, add 60mL dithiocarbonic anhydride, filter to obtain filter residue after sulfonation reaction 120min, it is that filter residue is poured in the sodium hydroxide solution that concentration is 0.01mol/L by 2:3 by solid-to-liquid ratio, stirs with glass stick and form viscose staple fibre blend spinning liquid; Finally above-mentioned obtained spinning solution is put into device for spinning stationary tank, it is that 1:3 adds porous-starch immobilized catalase powder by solid-to-liquid ratio, stirring to be extruded by spinning solution infusion pump after evenly and spray by spinning nozzle, the spinning solution jet of ejection is cured and forms modification viscose staple fibre spinning cigarette filter tip material.
This example operation is simple, during use, modification viscose staple fibre spinning cigarette filter tip material the present invention obtained makes cigaratte filter, install on cigarette, after lighting, find after testing, in flue gas after the cigarette filter tip material filtration that the present invention obtains, tar compared with traditional cigarette filter tip material, reduces 30% with free-radical contents.
Claims (2)
1. the preparation method of a modification viscose staple fibre cigarette filter tip material, it is characterised in that concrete preparation process is:
(1) 100��200g fresh beef liver is taken, the fragment of 1��3cm is shredded into scissors, put into 2L vial, add phosphoric acid buffer and 15��20g polyvinylpyrrolidone that 500��700mLpH is 6��7, put into high-speed homogenization machine, with the rotating speed high-speed homogenization 1��3min of 20000��22000r/min;
(2) after homogenate terminates, slurries are moved in beaker, it is placed in ice-water bath, 1��2h is left standstill at 4��6 DEG C, and draw 150��200mL supernatant liquid with syringe and put into horizontal centrifuge, with the centrifugal 10��15min of the rotating speed of 12000��14000r/min, it is catalase mother liquor that separation obtains supernatant liquor, preserves at 4��6 DEG C;
(3) it is that porous-starch is added in supernatant liquor by 2:5 by solid-to-liquid ratio, it is placed in vortex oscillation instrument under normal temperature, with the power of 10��20W, the rate oscillation absorption 7��9h of 200��400rmp/min, put into ice-water bath hold over night, it is precipitated with the rotating speed centrifugation of 12000��14000r/min, puts into B��chner funnel, take out filter 3��5 times with deionized water repetitive scrubbing, after naturally drying, obtain porous-starch immobilized catalase powder;
(4) cizu is got, with chopper by its cutting growth 2cm, the bamboo sheet of wide 1cm, first with the swelling 20��24h of distilled water immersion, it is that 1:10 is added in the acetum that mass concentration is 5% by solid-to-liquid ratio again, put into thermostat container, with temperature rise rate temperature programming to 120��140 DEG C of 2��4 DEG C/min, insulation hydrolysis 2��6h;
(5) the bamboo block fiber after hydrolysis is poured in digester, add the sodium hydroxide of its quality 5��10% and the sodium sulphite of 3��5%, and add distilled water until by mixture submergence, it is warming up to 100��110 DEG C of boiling 3��5h, boiling is pulled an oar after terminating, bleaching, put into pressure filter, after the pressure extrusion filter water of 0.3��0.5MPa, to put into baking oven and to be dried to constant weight at 105��110 DEG C, the obtained thin slice shape slurry dregs of rice;
(6) get the above-mentioned slurry dregs of rice of 300��500g and put into the caustic soda soln that 1��2L temperature is 60��70 DEG C, it is placed on shaking table to vibrate dipping 2��3h, dipping puts into experienced drum experienced 12��18h at 30��35 DEG C after terminating, reduce temperature to 20��25 DEG C again, add 50��60mL dithiocarbonic anhydride, filter to obtain filter residue after sulfonation reaction 100��120min, it is that filter residue is poured in the sodium hydroxide solution that concentration is 0.01mol/L by 2:3 by solid-to-liquid ratio, stirs with glass stick and form viscose staple fibre blend spinning liquid;
(7) above-mentioned obtained spinning solution is put into device for spinning stationary tank, it is that 1:3 adds porous-starch immobilized catalase powder by solid-to-liquid ratio, stirring to be extruded by spinning solution infusion pump after evenly and spray by spinning nozzle, the spinning solution jet of ejection is cured and forms modification viscose staple fibre spinning cigarette filter tip material.
2. the preparation method of a kind of modification viscose staple fibre cigarette filter tip material according to claim 1, it is characterized in that: described spinning jet curing be the aqueous solution being made into as 5:1 in mass ratio using sulfuric acid and sodium sulfate as precipitation bath, spinning jet is solidified.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704263A (en) * | 2020-11-29 | 2021-04-27 | 湖北中烟工业有限责任公司 | Cigarette filter tip capable of promoting degradation by using biological enzyme |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704263A (en) * | 2020-11-29 | 2021-04-27 | 湖北中烟工业有限责任公司 | Cigarette filter tip capable of promoting degradation by using biological enzyme |
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