CN109275952A - A kind of preparation method of compound cigarette filter - Google Patents
A kind of preparation method of compound cigarette filter Download PDFInfo
- Publication number
- CN109275952A CN109275952A CN201811484706.4A CN201811484706A CN109275952A CN 109275952 A CN109275952 A CN 109275952A CN 201811484706 A CN201811484706 A CN 201811484706A CN 109275952 A CN109275952 A CN 109275952A
- Authority
- CN
- China
- Prior art keywords
- filter
- rush
- modified
- filter material
- freeze
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0208—Cutting filter materials
-
- 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
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
-
- 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
- A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
Abstract
The present invention relates to a kind of preparation methods of compound cigarette filter, belong to technical field of cigarettes.The present invention uses the mixed solution of isopropyl alcohol and water to pre-process wick grass fiber first, then pretreated wick grass fiber is carried out filtering processing under water/alcohol mixed solution infiltration of polyvinylpyrrolidone and is freeze-dried, obtain modified wick grass fiber.Then modified wick grass fiber is cut into strips and graininess respectively, is suppressed by filter-stick forming device and coats obtained stripe shape and granular pattern filter material.Finally, cutting and carrying out end splicing for stripe shape and granular pattern filter material, coated after filter-stick forming device is suppressed jointly with filter tip forming paper, obtains required compound cigarette filter.Filter structures prepared by the present invention are simple, material natural degradable, intercept in physics duct, under chemical complexing absorption and interface delay the multiple action of filtering, so that product has significant reducing tar and reducing harm effect.
Description
Technical field
The present invention relates to a kind of preparation methods of compound cigarette filter, belong to technical field of cigarettes.
Background technique
Pollution and health hazard caused by smoking have become world's urgent problem to be solved.Tobacco smoke is that one kind contains
The mixture of 3800 multiple compounds, these compounds are by volatility, half volatile and the non-volatile compounds in gas phase
The aerosol of composition.Smoker's smoking is because they are to nicotine addiction.However in addition to nicotine, also contain in cigarette smoke
Various toxic compounds cause smoker to catch an illness and suffer from cancer.Although for many years both at home and abroad in terms of the exploitation of cigarette filter
Many effort are done, but most of cigarette filters are still made of acetate fiber.However, common acetate fiber mistake
Filter tip is unsatisfactory to the removal effect of toxic compounds in flue gas.In order to improve removal efficiency, people start to add into filter tip
Enter such as active carbon, zeolite even carbon nanotube additive, uses them to adsorb or decompose the noxious material in flue gas.
It on the other hand, is a complicated chemical production from the production of good fiber quality element resource such as broad leaf tree to acetate fiber
Process inherently generates a large amount of pollutions.Nowadays, cigarette quality and the standard of environmental protection are higher and higher in industrial production, this is more
Add and people is promoted to make great efforts to improve the removal efficiency of toxic compounds in flue gas.Therefore, it invents novel filter-tip material and goes conduct
The substitute of acetate fiber or polypropylene synthetic fibers is necessary.
China Patent Publication No. CN108158034A, publication date are on June 15th, 2018, denomination of invention are as follows: Yi Zhongfu
Close aerogel type cigarette filter tip materials preparation method, the invention be using sepiolite as raw material, it is modified and its
His substance it is compound again, finally obtain composite aerogel type filter tip material.Its advantage is that being imitated to the noxious substance in cigarette
Fruit highly significant, and there is good mechanical property.But compound required auxiliary material category is special, causes materials difficult, cost
It is excessively high, in addition raw material can not natural degradation, for absorption post-processing increase difficulty, it is more difficult to apply to the disposable volume of current mainstream
Cigarette.
Rush, herbaceos perennial often take its stem to dry and are used as medicine, have effects that clearing away the heart-fire, diuresis.In recent years
Come, people realize that there are natural space networks inside rush, and gradually start to carry out function exploration.Due to cigarette cigarette
Contain micron-sized aerosol in gas more, and the mesh inside rush is mostly nanoscale, therefore rush is just considered a kind of
Ideal cigarette filter material.
China Patent Publication No. CN101347266B, publication date are on December 22nd, 2010, denomination of invention are as follows: Yi Zhongjuan
The preparation method of cigarette filtering material, the invention are to use rush as raw material, pass through the techniques shape such as load-carrying processing, dry, granulation
Particle is adsorbed at cigarette, so that filter material of cigarette be made.Its advantage is that raw material is natural porous plant fiber, can be received using it
The absorption of meter level space network intercepts harmful substance, and cheap.But its adsorption mechanism is mainly physical absorption, relatively
It is promoted less in the adsorption effect of traditional filter tip, and particle does not have adhesiveness, it is not very practical at leakiness grain after stick.
China Patent Publication No. CN2757604Y, publication date are on 2 15th, 2006, denomination of invention are as follows: rush mistake
Filter tip cigarette, the invention are to be placed in a small amount of strip rush in cigarette filter in a manner of axial alignment, form novel filter
Mouth.Although it can reduce cigarette toxicity, rush is easily broken, and the process for being placed in filter stick is difficult, cannot achieve industrialization, and only
Physical absorption is carried out by porous structure, the adsorbance of harmful substances from flue gases is few, and adsorption effect is bad.
It is carried out in physical absorption currently, the mechanism of action of rush filter tip is only rested on using its reticular structure, though have not
Wrong effect, but compared to the chemisorption that additive is added and generates, still gap, is mainly reflected in the selection of absorption
In property and overall effect.
Therefore, how rush is modified, so that it has both multiple absorption during smoke filtration, was promoted
Effect is filtered, and finished product is stablized, there are industrialized potentiality, be critical issue instantly.
Summary of the invention
The purpose of the present invention is intended to overcome the deficiencies of existing technologies, and provides a kind of using modified rush as matrix preparation
The tar etc. in flue gas is effectively reduced so that smoke filtration has both multiple suction-operated in the preparation method of compound cigarette filter
Harmful substance.
A kind of preparation method of compound cigarette filter of the present invention, sequentially includes the following steps:
The preparation of a cleaning solution
Isopropyl alcohol and water is stirred after mixing and is configured to cleaning solution, wherein the volume ratio of isopropanol and water is 98:2
~90:10, stirring rate are 50~600r/min, and mixing time is 1~10min.
The preparation of b modified solution
Polyvinylpyrrolidone is placed in the mixed solution of second alcohol and water, is taken off under vacuum conditions after stirring and dissolving
Bubble processing, obtains modified solution, wherein the mass fraction of polyvinylpyrrolidone is 3~10%, and the volume ratio of second alcohol and water is
95:5~90:10, solution temperature are 40~80 DEG C, and mixing speed is 50~600r/min, and mixing time is 6~12h, vacuum ring
The vacuum degree in border is 0.05~0.1Mpa, and the time of deaeration processing is 8~12h.
The pretreatment of c rush
Rush is placed in the cleaning solution being formulated through a step, dries, is pre-processed after carrying out ultrasonication
Rush afterwards, wherein ultrasonic frequency is 20~60kHz, and ultrasonic temperature is 10~35 DEG C, and ultrasonic time is 15~20min,
Drying temperature is 40~60 DEG C, and drying time is 4~8h.
The modification of d rush
It will be placed in Buchner funnel through the pretreated rush of step c, in the modified solution infiltration that b step is formulated
Lower carry out negative pressure leaching, is put into pre-freeze in refrigerator later, and after the completion of pre-freeze, the rush after pre-freeze is moved into freeze drier
In, modified rush is obtained after vacuum freeze drying, wherein suction filtration negative pressure be 0.3~0.5MPa, filter the time be 3~
5min, pre-freezing temperature are -40~-30 DEG C, and the pre-freeze time is 6~12h, and the vacuum degree of vacuum freeze drying is 0.1~0.3MPa,
Vacuum freeze drying temperature is -55~-40 DEG C, and the vacuum freeze drying time is 6~12h.
The preparation of e granular pattern filter material
Rush modified in Step d is cut into graininess, graininess partial size is 1~3mm, is put into filter-stick forming device
It is suppressed, is coated later with filter tip forming paper, obtain granular pattern filter material, wherein modified contained by granular pattern filter material
The quality of granular rush is 0.04~0.07g.
The preparation of f stripe shape filter material
Rush modified in Step d is cut into strip, strip length is 1~2cm, along axial close-packed arrays at cylinder
Body is coated after filter-stick forming device is suppressed with filter tip forming paper, and stripe shape filter material is obtained, wherein modified contained by stripe shape filter material
The quality of strip rush is 0.04~0.07g afterwards.
The preparation of the compound cigarette filter of g
Splice after the granular pattern filter material prepared in step e and the stripe shape filter material prepared in f step are cut respectively, then
It is coated through the common compression moulding of filter-stick forming device and with filter tip forming paper, obtains compound cigarette filter, wherein splicing side
Formula is that end is docked, and the cutoff length ratio of granular pattern filter material and strip filter material is 3:7~7:3.
The average molecular weight of the polyvinylpyrrolidone is 80000~130000.
Due to using above technical scheme, technical characterstic of the invention is: using polyvinylpyrrolidone to wick
Grass is modified, and polyvinylpyrrolidone is a kind of water soluble polymer, odorless, tasteless, nontoxic, and is had good
Caking property, viscosity increases with the increase of average molecular weight, so can be good at the outer wall for being attached to rush.When flat
It can be good at penetrating into the reticular structure inside rush in the case that average molecular weight is moderate, and dry using vacuum refrigeration
Dry method more completely remains it in the case where not influencing polyvinylpyrrolidone physical structure and molecular structure
It is formed and is mutually communicated or closed hole or network structure while institutional framework and mode of appearance, solvent are de- dry, it can be effective
Duct caused by due to solution local viscosity is uneven is avoided to block.Polyvinylpyrrolidonemolecules molecules structure has highly polar and easy shape
At the phthalein amine groups of hydrogen bond, this enables it to combine some polar micromolecules, while the oxygen atom of intramolecular, nitrogen-atoms are typical
Coordination atom, can generate complex compound from many different compounds makes in flue gas aerosol when with mainstream smoke contacts
Harmful substance water solubility enhancing not soluble in water, is more dissolved in vapor, so that coacervation occur, forms water-setting
Glue causes to be intercepted by mesh inside rush, achievees the effect that filtering out harmful matter.
Graininess rush is since the pore size of rush outer wall and internal reticular structure is inhomogenous, and by depositing between particle
In numerous stable holes, channel is provided for flow of flue gas, flue gas is able to increase the contact with filtrate by curved duct
Time, rejection effect are obviously improved.Uniform pore diameter inside strip rush, flue gas extend axially through wherein, carry out hole mistake
While filter, the flow speed stability of air-flow influences Cigarette Draw Resistance little.By strip and two kinds of structure composites of particle, two kinds of structures
Average pore size is different, and while being filtered respectively, the interfaces of two structures is since average pore size changes suddenly, flue gas
It cannot dredge, cause to be detained or countercurrently, further extend the time of contact of filtrate and flue gas.Three models combination filtering,
Form three heavily adsorbs.Physics duct is intercepted to be combined with chemical complexing absorption, to reach good filter effect.System of the present invention
Standby filter structures are simple, cost of material is low, material natural degradable, adsorption effect are good.
Specific embodiment
The present invention is specifically described combined with specific embodiments below.
The preparation method sequentially includes the following steps:
The preparation of a cleaning solution
Isopropyl alcohol and water is stirred after mixing and is configured to cleaning solution, wherein the volume ratio of isopropanol and water is 98:2
~90:10, stirring rate are 50~600r/min, and mixing time is 1~10min.
The preparation of b modified solution
Polyvinylpyrrolidone is placed in the mixed solution of second alcohol and water, is taken off under vacuum conditions after stirring and dissolving
Bubble processing, obtains modified solution, wherein the mass fraction of polyvinylpyrrolidone is 3~10%, and the volume ratio of second alcohol and water is
95:5~90:10, solution temperature are 40~80 DEG C, and mixing speed is 50~600r/min, and mixing time is 6~12h, vacuum ring
The vacuum degree in border is 0.05~0.1Mpa, and the time of deaeration processing is 8~12h.
The pretreatment of c rush
Rush is placed in the cleaning solution being formulated through a step, dries, is pre-processed after carrying out ultrasonication
Rush afterwards, wherein ultrasonic frequency is 20~60kHz, and ultrasonic temperature is 10~35 DEG C, and ultrasonic time is 15~20min,
Drying temperature is 40~60 DEG C, and drying time is 4~8h.
The modification of d rush
It will be placed in Buchner funnel through the pretreated rush of step c, in the modified solution infiltration that b step is formulated
Lower carry out negative pressure leaching, is put into pre-freeze in refrigerator later, and after the completion of pre-freeze, the rush after pre-freeze is moved into freeze drier
In, modified rush is obtained after vacuum freeze drying, wherein suction filtration negative pressure be 0.3~0.5MPa, filter the time be 3~
5min, pre-freezing temperature are -40~-30 DEG C, and the pre-freeze time is 6~12h, and the vacuum degree of vacuum freeze drying is 0.1~0.3MPa,
Vacuum freeze drying temperature is -55~-40 DEG C, and the vacuum freeze drying time is 6~12h.
The preparation of e granular pattern filter material
Rush modified in Step d is cut into graininess, graininess partial size is 1~3mm, is put into filter-stick forming device
It is suppressed, is coated later with filter tip forming paper, obtain granular pattern filter material, wherein modified contained by granular pattern filter material
The quality of granular rush is 0.04~0.07g.
The preparation of f stripe shape filter material
Rush modified in Step d is cut into strip, strip length is 1~2cm, along axial close-packed arrays at cylinder
Body is coated after filter-stick forming device is suppressed with filter tip forming paper, and stripe shape filter material is obtained, wherein modified contained by stripe shape filter material
The quality of strip rush is 0.04~0.07g afterwards.
The preparation of the compound cigarette filter of g
Splice after the granular pattern filter material prepared in step e and the stripe shape filter material prepared in f step are cut respectively, then
It is coated through the common compression moulding of filter-stick forming device and with filter tip forming paper, obtains compound cigarette filter, wherein splicing side
Formula is that end is docked, and the cutoff length ratio of granular pattern filter material and strip filter material is 3:7~7:3.
The average molecular weight of the polyvinylpyrrolidone is 80000~130000.
Specific embodiment
Embodiment one
By above-mentioned processing step: being in mass ratio that 90:10 forms mixed solution by second alcohol and water, at room temperature, with 100r/
After mixed solution is stirred 1min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidone for being 80000 by average molecular weight
It is dissolved in dehydrated alcohol/water mixed solution of 95:5, forms the mixed solution that mass fraction is 3%, the water for being 50 DEG C in temperature
It bathes under environment, mixed solution is stirred into 8h with the speed of 50r/min, deaeration 8h in the environment of vacuum degree is 0.05MPa is obtained
Modified solution.Wick grass fiber is immersed in cleaning solution, with 20kHz, 10 DEG C of ultrasonic treatment 15min, is placed on 40 DEG C later
Dry 4h, obtains pretreated wick grass fiber in baking oven.Pretreated wick grass fiber is placed in Buchner funnel,
Under the infiltration of modified solution, 3min is filtered with negative pressure 0.3MPa, -40 DEG C of refrigerator pre-freeze 6h is put it into later, is put after taking-up
Enter vacuum freeze-drying 6h in the freeze drier that vacuum degree is 0.1MPa, temperature is -55 DEG C, obtains modified rush.It takes
0.07g partial size is that the modified graininess rush of 1mm puts into filter-stick forming device, is wrapped after repressed with filter tip forming paper
It covers, obtains granular pattern filter material.Take 30 root long degree be the modified strip wick grass fiber of 2cm closely align, through filter stick at
It is coated after the compacting of type machine with filter tip forming paper, obtains stripe shape filter material.Finally, by granular pattern filter material and stripe shape filter material with length
It than 3:7 through the common compression moulding of filter-stick forming device, then is coated with filter tip forming paper, obtains compound cigarette filter.
Embodiment two
By above-mentioned processing step: being in mass ratio that 91:9 forms mixed solution by second alcohol and water, at room temperature, with 50r/
After mixed solution is stirred 3min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidone for being 90000 by average molecular weight
It is dissolved in dehydrated alcohol/water mixed solution of 94:6, forms the mixed solution that mass fraction is 5%, the water for being 40 DEG C in temperature
It bathes under environment, mixed solution is stirred into 6h with the speed of 100r/min, deaeration 9h in the environment of vacuum degree is 0.06MPa is obtained
To modified solution.Wick grass fiber is immersed in cleaning solution, with 30kHz, 15 DEG C of ultrasonic treatment 16min, is placed on 45 later
Dry 5h, obtains pretreated wick grass fiber in DEG C baking oven.Pretreated wick grass fiber is placed in Buchner funnel,
Under the infiltration of modified solution, 3.5min is filtered with negative pressure 0.35MPa, puts it into -37 DEG C of refrigerator pre-freeze 7h later, is taken out
It is put into vacuum freeze-drying 7h in the freeze drier that vacuum degree is 0.15MPa, temperature is -50 DEG C afterwards, obtains modified rush.
Taking 0.06g partial size is that the modified graininess rush of 1.5mm puts into filter-stick forming device, it is repressed after with filter tip forming paper into
Row cladding, obtains granular pattern filter material.Taking 28 root long degree is that the modified strip wick grass fiber of 1.5cm closely aligns, and is passed through
It is coated after filter-stick forming device compacting with filter tip forming paper, obtains stripe shape filter material.Finally, by granular pattern filter material and stripe shape filter material
It with length ratio 4:6 through the common compression moulding of filter-stick forming device, then is coated with filter tip forming paper, obtains compound cigarette filter
Mouth.
Embodiment three
By above-mentioned processing step: being in mass ratio that 93:7 forms mixed solution by second alcohol and water, at room temperature, with 70r/
After mixed solution is stirred 4min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidone for being 80000 by average molecular weight
It is dissolved in dehydrated alcohol/water mixed solution of 93:7, forms the mixed solution that mass fraction is 6%, the water for being 60 DEG C in temperature
It bathes under environment, mixed solution is stirred into 7h with the speed of 200r/min, deaeration 10h in the environment of vacuum degree is 0.07MPa is obtained
To modified solution.Wick grass fiber is immersed in cleaning solution, with 40kHz, 20 DEG C of ultrasonic treatment 17min, is placed on 50 later
Dry 6h, obtains pretreated wick grass fiber in DEG C baking oven.Pretreated wick grass fiber is placed in Buchner funnel,
Under the infiltration of modified solution, 4min is filtered with negative pressure 0.4MPa, -36 DEG C of refrigerator pre-freeze 8h is put it into later, after taking-up
It is put into vacuum freeze-drying 8h in the freeze drier that vacuum degree is 0.2MPa, temperature is -45 DEG C, obtains modified rush.It takes
0.05g partial size is that the modified graininess rush of 2mm puts into filter-stick forming device, is wrapped after repressed with filter tip forming paper
It covers, obtains granular pattern filter material.Take 27 root long degree be the modified strip wick grass fiber of 1cm closely align, through filter stick at
It is coated after the compacting of type machine with filter tip forming paper, obtains stripe shape filter material.Finally, by granular pattern filter material and stripe shape filter material with length
It than 5:5 through the common compression moulding of filter-stick forming device, then is coated with filter tip forming paper, obtains compound cigarette filter.
Example IV
By above-mentioned processing step: being in mass ratio that 95:5 forms mixed solution by second alcohol and water, at room temperature, with 200r/
After mixed solution is stirred 5min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidone for being 100000 by average molecular weight
It is dissolved in dehydrated alcohol/water mixed solution of 95:5, forms the mixed solution that mass fraction is 7%, the water for being 65 DEG C in temperature
It bathes under environment, mixed solution is stirred into 9h with the speed of 300r/min, deaeration 8.5h in the environment of vacuum degree is 0.08MPa,
Obtain modified solution.Wick grass fiber is immersed in cleaning solution, with 45kHz, 25 DEG C of ultrasonic treatment 18min, is placed on later
Dry 7h, obtains pretreated wick grass fiber in 55 DEG C of baking ovens.Pretreated wick grass fiber is placed in Buchner funnel
In, under the infiltration of modified solution, 4.5min is filtered with negative pressure 0.45MPa, puts it into -35 DEG C of refrigerator pre-freeze 9h later,
It is put into vacuum freeze-drying 9h in the freeze drier that vacuum degree is 0.25MPa, temperature is -40 DEG C after taking-up, obtains modified lamp
Core grass.Taking 0.04g partial size is that the modified graininess rush of 2.5mm puts into filter-stick forming device, it is repressed after with filter tip at
Type paper is coated, and granular pattern filter material is obtained.Taking 25 root long degree is the modified strip wick grass fiber of the 1.6cm closely row of orientation
Column, are coated with filter tip forming paper after filter-stick forming device is suppressed, obtain stripe shape filter material.Finally, by granular pattern filter material and item
Type filter material is coated with length ratio 6:4 through the common compression moulding of filter-stick forming device, then with filter tip forming paper, and compound volume is obtained
Cigarette filter tip.
Embodiment five
By above-mentioned processing step: being in mass ratio that 96:4 forms mixed solution by second alcohol and water, at room temperature, with 300r/
After mixed solution is stirred 6min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidone for being 110000 by average molecular weight
It is dissolved in dehydrated alcohol/water mixed solution of 92:8, forms the mixed solution that mass fraction is 8%, the water for being 70 DEG C in temperature
It bathes under environment, mixed solution is stirred into 10h with the speed of 400r/min, deaeration 9.5h in the environment of vacuum degree is 0.09MPa,
Obtain modified solution.Wick grass fiber is immersed in cleaning solution, with 50kHz, 30 DEG C of ultrasonic treatment 19min, is placed on later
Dry 8h, obtains pretreated wick grass fiber in 60 DEG C of baking ovens.Pretreated wick grass fiber is placed in Buchner funnel
In, under the infiltration of modified solution, 5min is filtered with negative pressure 0.5MPa, -34 DEG C of refrigerator pre-freeze 10h is put it into later, takes
It is put into vacuum freeze-drying 10h in the freeze drier that vacuum degree is 0.3MPa, temperature is -50 DEG C after out, obtains modified wick
Grass.Taking 0.045g partial size is that the modified graininess rush of 3mm puts into filter-stick forming device, uses filter tip forming paper after repressed
It is coated, obtains granular pattern filter material.Taking 24 root long degree is that the modified strip wick grass fiber of 1.7cm closely aligns,
It is coated after filter-stick forming device is suppressed with filter tip forming paper, obtains stripe shape filter material.Finally, granular pattern filter material and stripe shape are filtered
Material is coated with length ratio 7:3 through the common compression moulding of filter-stick forming device, then with filter tip forming paper, and compound cigarette filter is obtained
Mouth.
Embodiment six
By above-mentioned processing step: being in mass ratio that 97:3 forms mixed solution by second alcohol and water, at room temperature, with 400r/
After mixed solution is stirred 8min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidone for being 120000 by average molecular weight
It is dissolved in dehydrated alcohol/water mixed solution of 91:9, forms the mixed solution that mass fraction is 9%, the water for being 75 DEG C in temperature
It bathes under environment, mixed solution is stirred into 11h with the speed of 500r/min, deaeration 11h in the environment of vacuum degree is 0.06MPa,
Obtain modified solution.Wick grass fiber is immersed in cleaning solution, with 55kHz, 35 DEG C of ultrasonic treatment 20min, is placed on later
Dry 7.5h, obtains pretreated wick grass fiber in 40 DEG C of baking ovens.Pretreated wick grass fiber is placed in Bu Shi leakage
In bucket, under the infiltration of modified solution, 3min is filtered with negative pressure 0.3MPa, puts it into -32 DEG C of refrigerator pre-freeze 11h later,
It is put into vacuum freeze-drying 11h in the freeze drier that vacuum degree is 0.1MPa, temperature is -42 DEG C after taking-up, obtains modified lamp
Core grass.Taking 0.055g partial size is that the modified graininess rush of 1mm puts into filter-stick forming device, is formed after repressed with filter tip
Paper is coated, and granular pattern filter material is obtained.Taking 22 root long degree is the modified strip wick grass fiber of the 1.8cm closely row of orientation
Column, are coated with filter tip forming paper after filter-stick forming device is suppressed, obtain stripe shape filter material.Finally, by granular pattern filter material and item
Type filter material is coated with length ratio 4.5:5.5 through the common compression moulding of filter-stick forming device, then with filter tip forming paper, is obtained compound
Type cigarette filter.
Embodiment seven
By above-mentioned processing step: being in mass ratio that 98:2 forms mixed solution by second alcohol and water, at room temperature, with 600r/
After mixed solution is stirred 10min by the speed of min, cleaning solution is obtained.The polyvinylpyrrolidine for being 130000 by average molecular weight
Ketone is dissolved in dehydrated alcohol/water mixed solution of 90:10, forms the mixed solution that mass fraction is 10%, is 80 DEG C in temperature
Water bath under, mixed solution is stirred into 12h with the speed of 600r/min, deaeration in the environment of vacuum degree is 0.1MPa
12h obtains modified solution.Wick grass fiber is immersed in cleaning solution, with 60kHz, 35 DEG C of ultrasonic treatments 20min, Zhi Houfang
The dry 5.5h in 50 DEG C of baking ovens is set, pretreated wick grass fiber is obtained.Pretreated wick grass fiber is placed in cloth
In family name's funnel, under the infiltration of modified solution, 4min is filtered with negative pressure 0.4MPa, puts it into -30 DEG C of refrigerator pre-freeze later
12h is put into vacuum freeze-drying 12h in the freeze drier that vacuum degree is 0.2MPa, temperature is -52 DEG C, obtains modified after taking-up
Rush.Taking 0.065g partial size is that the modified graininess rush of 2mm puts into filter-stick forming device, uses filter tip after repressed
Forming paper is coated, and granular pattern filter material is obtained.Taking 20 root long degree is that the modified strip wick grass fiber of 1.9cm closely orients
Arrangement, is coated with filter tip forming paper after filter-stick forming device is suppressed, obtains stripe shape filter material.Finally, by granular pattern filter material and
Stripe shape filter material is coated with length ratio 6.5:3.5 through the common compression moulding of filter-stick forming device, then with filter tip forming paper, is answered
Mould assembly cigarette filter.
Claims (2)
1. a kind of preparation method of compound cigarette filter, it is characterised in that: the preparation method sequentially includes the following steps:
The preparation of a cleaning solution
Isopropyl alcohol and water is stirred after mixing and is configured to cleaning solution, wherein the volume ratio of isopropanol and water is 98:2~90:
10, stirring rate is 50~600r/min, and mixing time is 1~10min；
The preparation of b modified solution
Polyvinylpyrrolidone is placed in the mixed solution of second alcohol and water, is carried out at deaeration under vacuum conditions after stirring and dissolving
Reason, obtains modified solution, wherein the mass fraction of polyvinylpyrrolidone is 3~10%, and the volume ratio of second alcohol and water is 95:5
~90:10, solution temperature are 40~80 DEG C, and mixing speed is 50~600r/min, and mixing time is 6~12h, vacuum environment
Vacuum degree is 0.05~0.1Mpa, and the time of deaeration processing is 8~12h；
The pretreatment of c rush
Rush is placed in the cleaning solution being formulated through a step, dries, obtains pretreated after carrying out ultrasonication
Rush, wherein ultrasonic frequency is 20~60kHz, and ultrasonic temperature is 10~35 DEG C, and ultrasonic time is 15~20min, drying
Temperature is 40~60 DEG C, and drying time is 4~8h；
The modification of d rush
To be placed in Buchner funnel through the pretreated rush of step c, under the infiltration of modified solution that b step is formulated into
Row negative pressure leaching, is put into pre-freeze in refrigerator later, after the completion of pre-freeze, the rush after pre-freeze is moved into freeze drier, very
Modified rush is obtained after vacuum freecing-dry, wherein suction filtration negative pressure is 0.3~0.5MPa, and the suction filtration time is 3~5min,
Pre-freezing temperature is -40~-30 DEG C, and the pre-freeze time is 6~12h, and the vacuum degree of vacuum freeze drying is 0.1~0.3MPa, vacuum
Being freeze-dried temperature is -55~-40 DEG C, and the vacuum freeze drying time is 6~12h；
The preparation of e granular pattern filter material
Rush modified in Step d is cut into graininess, graininess partial size is 1~3mm, puts into filter-stick forming device and carries out
Compacting, is coated with filter tip forming paper later, obtains granular pattern filter material, wherein modified graininess contained by granular pattern filter material
The quality of rush is 0.04~0.07g；
The preparation of f stripe shape filter material
Rush modified in Step d is cut into strip, strip length is 1~2cm, along axial close-packed arrays at cylindrical body,
It is coated after filter-stick forming device is suppressed with filter tip forming paper, obtains stripe shape filter material, wherein modified item contained by stripe shape filter material
The quality of shape rush is 0.04~0.07g；
The preparation of the compound cigarette filter of g
Splice after the granular pattern filter material prepared in step e and the stripe shape filter material prepared in f step are cut respectively, then through filtering
The common compression moulding of rod forming machine is simultaneously coated with filter tip forming paper, and compound cigarette filter is obtained, wherein connecting method is
The cutoff length ratio of end docking, granular pattern filter material and strip filter material is 3:7~7:3.
2. a kind of preparation method of compound cigarette filter as described in claim 1, it is characterised in that: the polyethylene pyrrole
The average molecular weight of pyrrolidone is 80000~130000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811484706.4A CN109275952B (en) | 2018-12-06 | 2018-12-06 | Preparation method of composite cigarette filter tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811484706.4A CN109275952B (en) | 2018-12-06 | 2018-12-06 | Preparation method of composite cigarette filter tip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109275952A true CN109275952A (en) | 2019-01-29 |
| CN109275952B CN109275952B (en) | 2021-02-02 |
Family
ID=65173910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811484706.4A Active CN109275952B (en) | 2018-12-06 | 2018-12-06 | Preparation method of composite cigarette filter tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109275952B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3101723A (en) * | 1960-11-15 | 1963-08-27 | Philip Morris Inc | Fibrous cigarette filter |
| US5019262A (en) * | 1989-10-06 | 1991-05-28 | International Applied Sciences, Inc. | Hydrophilic microporous membrane |
| JP2005245258A (en) * | 2004-03-02 | 2005-09-15 | Shetech:Kk | Filter tip containing platinum nano particles, and smoking object having the filter tip or solution of platinum nanoparticles |
| CN101367953A (en) * | 2008-08-14 | 2009-02-18 | 世源科技(嘉兴)医疗电子有限公司 | Process for preparing water-soluble polyvinyl alcohol film |
| CN102090717A (en) * | 2010-12-13 | 2011-06-15 | 云南瑞升烟草技术（集团）有限公司 | Natural filtering material for filter tip and preparation method thereof |
| CN102794154A (en) * | 2012-08-21 | 2012-11-28 | 上海烟草集团有限责任公司 | Use of amino-functional material for reducing hydrogen cyanide content of cigarette smoke |
| CN103657449A (en) * | 2013-12-17 | 2014-03-26 | 大连天承科技有限公司 | Novel hydrophilic hollow fiber membrane preparation method |
| CN104005288A (en) * | 2014-05-30 | 2014-08-27 | 滁州卷烟材料厂 | Health-care tipping paper capable of reducing harm of cigarettes to human body and preparation method of health-care tipping paper |
| CN105105335A (en) * | 2015-09-16 | 2015-12-02 | 安徽农业大学 | Phosphate-modified porous starch quantitative embedding tea polyphenol compound and preparation method and application thereof |
| CN106334530A (en) * | 2016-10-14 | 2017-01-18 | 太原理工大学 | Method for preparing porous compound desulfurizer for removing organic sulfide |
| CN106520367A (en) * | 2016-09-27 | 2017-03-22 | 湖北中烟工业有限责任公司 | Preparation method of wolfberry reactant for cigarette |
| CN106621558A (en) * | 2016-12-23 | 2017-05-10 | 齐鲁工业大学 | Method for preparing antibacterial filter material |
-
2018
- 2018-12-06 CN CN201811484706.4A patent/CN109275952B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3101723A (en) * | 1960-11-15 | 1963-08-27 | Philip Morris Inc | Fibrous cigarette filter |
| US5019262A (en) * | 1989-10-06 | 1991-05-28 | International Applied Sciences, Inc. | Hydrophilic microporous membrane |
| JP2005245258A (en) * | 2004-03-02 | 2005-09-15 | Shetech:Kk | Filter tip containing platinum nano particles, and smoking object having the filter tip or solution of platinum nanoparticles |
| CN101367953A (en) * | 2008-08-14 | 2009-02-18 | 世源科技(嘉兴)医疗电子有限公司 | Process for preparing water-soluble polyvinyl alcohol film |
| CN102090717A (en) * | 2010-12-13 | 2011-06-15 | 云南瑞升烟草技术（集团）有限公司 | Natural filtering material for filter tip and preparation method thereof |
| CN102794154A (en) * | 2012-08-21 | 2012-11-28 | 上海烟草集团有限责任公司 | Use of amino-functional material for reducing hydrogen cyanide content of cigarette smoke |
| CN103657449A (en) * | 2013-12-17 | 2014-03-26 | 大连天承科技有限公司 | Novel hydrophilic hollow fiber membrane preparation method |
| CN104005288A (en) * | 2014-05-30 | 2014-08-27 | 滁州卷烟材料厂 | Health-care tipping paper capable of reducing harm of cigarettes to human body and preparation method of health-care tipping paper |
| CN105105335A (en) * | 2015-09-16 | 2015-12-02 | 安徽农业大学 | Phosphate-modified porous starch quantitative embedding tea polyphenol compound and preparation method and application thereof |
| CN106520367A (en) * | 2016-09-27 | 2017-03-22 | 湖北中烟工业有限责任公司 | Preparation method of wolfberry reactant for cigarette |
| CN106334530A (en) * | 2016-10-14 | 2017-01-18 | 太原理工大学 | Method for preparing porous compound desulfurizer for removing organic sulfide |
| CN106621558A (en) * | 2016-12-23 | 2017-05-10 | 齐鲁工业大学 | Method for preparing antibacterial filter material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109275952B (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101885485B (en) | Method for preparing carbon material with high specific surface area by using metallic organic framework material as template | |
| CN103393218B (en) | Curable type filter stick of a kind of particle assembled formation and preparation method thereof | |
| US11006664B2 (en) | Graphene adsorbing material, preparation method therefor and application thereof, and cigarette filter tip and cigarette | |
| CN109180171A (en) | A kind of electronic smoke atomizer porous ceramics and preparation method thereof and the electronic cigarette with the electronic smoke atomizer porous ceramics | |
| CN103005712A (en) | Grapheme type fiber cigarette filter and preparation method thereof | |
| WO2023092842A1 (en) | Molded activated carbon, preparation method therefor and use thereof | |
| CN107951070A (en) | A kind of composite cigarette filter and preparation method thereof and a kind of cigarette | |
| CN109275953A (en) | A kind of preparation method of fiber base cigarette filter | |
| CN109275952A (en) | A kind of preparation method of compound cigarette filter | |
| CN103272562A (en) | Preparation method of filter material base activated carbon fiber | |
| CN103743768A (en) | Evaluation method for substance migration in smoking of cigarette filter stick | |
| CN102871221B (en) | Processing method of dual combined filter rod | |
| CN109275951A (en) | A kind of preparation method of the cigarette filter of high efficiency filter harmful substance | |
| CN201308096Y (en) | Composite filter stick adding with porous particle materials | |
| CN107946082A (en) | A kind of preparation method and its usage of cigarette filter/graphene composite material | |
| CN103949136A (en) | Second-hand smoke absorbing and filtering screen | |
| CN112645324B (en) | Porous carbon composite material with core-shell structure and preparation method and application thereof | |
| CN204861143U (en) | Ternary cigarette filter | |
| CN102771894A (en) | Thread added cigarette holder capable of reducing harmfulness of cigarettes | |
| CN201821901U (en) | Composite cigarette filter tip with microcapsule particles | |
| CN101914871B (en) | Water-based paint containing zeolite molecular sieves for cigarette wrap paper | |
| CN110101129A (en) | It is a kind of to heat do not burn cigarette smoked sheet and cigarette | |
| CN104432486A (en) | Device and method for manufacturing low-temperature cigarette raw material | |
| CN201781975U (en) | Filter tip filled with sepiolite grains | |
| CN213153979U (en) | Axial binary composite low-temperature cigarette filter tip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |