CN109864338A - A kind of production technology of environment-friendly type filter tip - Google Patents
A kind of production technology of environment-friendly type filter tip Download PDFInfo
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- CN109864338A CN109864338A CN201910294685.8A CN201910294685A CN109864338A CN 109864338 A CN109864338 A CN 109864338A CN 201910294685 A CN201910294685 A CN 201910294685A CN 109864338 A CN109864338 A CN 109864338A
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Abstract
The invention discloses a kind of production technologies of environment-friendly type filter tip, including filter core, filler and forming paper, the number of the filter core is two, and two filter cores are respectively formed the both ends of filter tip, the filler is enclosed with forming paper on the outside of two filter cores and filler between two filter cores；The filter tip is prepared by following step: filler is the expanded cut tobacco for adding essence, manufactures filter core, the filter core includes cellulose acetate filter rod and propene fibre filter stick, and the filler is placed between two filter cores by the axial direction of filler；Forming paper of the present invention includes that cut paper, molding technical process produce, simple production process, easily operated；Meanwhile it is environmentally protective, be easy to degrade, the original miscellaneous gas of finished product cigarette can be substantially reduced, irritation mitigates, and has excellent anti-microbial property, guarantees the quality of cigarette.
Description
Technical field
The invention belongs to cigaratte filter production technical fields, and in particular, to a kind of production technology of environment-friendly type filter tip.
Background technique
The history of the existing centuries of the production of cigarette, smoking is the main problem for endangering human health, it has already been proven that
Many diseases and smoking suffer from close connection, such as cardiovascular and cerebrovascular and pulmonary disease.But it worldwide can not be comprehensive
Smoking ban, therefore hardy reduce the poisonous and harmful element in cigarette and have become a kind of compel to reduce cigarette to the harm of people
Unavoidable means.
It heating the cigarette that do not burn and (300 DEG C or so) is heated to pipe tobacco using special heat source, pipe tobacco, which only heats, not to burn,
Pipe tobacco temperature is greatly reduced well below traditional cigarette, flue gas harmful chemical component and bio-toxicity, it is possible to reduce tobacco high temperature
The harmful components that burning cracking generates；Meanwhile it is so different from the yin of traditional cigarette, its pipe tobacco when aspirating interval is in non-heated
State, therefore side-stream smoke and environment flue gas are also greatly reduced.The production for heating the cigarette that do not burn also meets present need further
It asks.
Pipe tobacco filter tip is as the important component for heating the cigarette that do not burn, and for discharging flue gas, chopping material is pipe tobacco
Thin slice, in the prior art for producing the equipment for heating the pipe tobacco filter tip for the cigarette that do not burn, operating process is complicated, produces
Pipe tobacco filter tip effect is bad, and filter tip is also difficult to operate in post-processing degradation, impacts to environment.
Summary of the invention
The purpose of the present invention is to provide a kind of production technology of environment-friendly type filter tip, forming paper includes cut paper, molding work
Skill process produces, simple production process, easily operated；Meanwhile it is environmentally protective, be easy to degrade, finished product can be substantially reduced
The original miscellaneous gas of cigarette, irritation mitigate, and have excellent anti-microbial property, guarantee the quality of cigarette.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of production technology of environment-friendly type filter tip, including filter core, filler and forming paper, the number of the filter core are two
A, two filter cores are respectively formed the both ends of filter tip, and the filler two filter cores and is filled out between two filter cores
It fills beyond the region of objective existence side and is enclosed with forming paper；
The filter tip is prepared by following step:
Filler is the expanded cut tobacco for adding essence, adds Mint Essence in expanded cut tobacco, then stores expanded cut tobacco
It air-dries, the mass ratio of expanded cut tobacco and both Mint Essences in filler is 100:1~20:1, manufactures filter core, the filter core
Including cellulose acetate filter rod and propene fibre filter stick, the filler is placed between two filter cores by the axial direction of filler, so
Textured level pressure roll-in is arranged by surface in forming paper afterwards and produces wrinkle pattern, then carries out forming paper by paper cutter
Cutting, the length and width for the forming paper being cut into is identical, wraps up except the circumferential exterior surface of two filter cores and filler three
And stickup shaping paper is to be joined together to form filter tip for two filter cores and filler three.
As a further solution of the present invention: the forming paper includes body paper and the oil-repellent coated on body paper surface.
As a further solution of the present invention: the body paper use following parts by weight raw material: 55-65 parts of true qualities wood pulp,
25-30 parts of true qualities bagasse pulp；
The body paper is made by the following method: true qualities wood pulp and true qualities bagasse pulp are uniformly mixed according to proportion by weight
Afterwards, according to normal paper production technique, it is prepared into body paper.
As a further solution of the present invention: the oil-repellent is made of the raw material of following parts by weight: aqueous acetic acid
180-200 parts, 2-3 parts of chitosan, 220-240 parts of distilled water, 4-6 parts of polyvinylalcohol solids powder, 1-2 parts of glycerol, glutaraldehyde
1-2 parts and castor oil 1-2 parts；
The oil-repellent is prepared by following steps:
S1, aqueous acetic acid is added in chitosan, using magnetic stirrer 30min, temperature is maintained at 55 DEG C, to it
Sufficiently dissolution, forms homogeneous and transparent solution, chitosan solution is made；
Wherein, the volume ratio of acetic acid and water is 1:20 in aqueous acetic acid；
S2, polyvinylalcohol solids powder is added in container, distilled water is added, whisking 15min under the conditions of 95 DEG C makes
It is sufficiently dissolved, and is configured to poly-vinyl alcohol solution；
S3, chitosan solution is mixed with poly-vinyl alcohol solution, is placed on thermostat water bath, controlled at 60 DEG C, made
45min is stirred with electric mixer, the mixed solution of chitosan and poly-vinyl alcohol solution is obtained, is successively added into mixed solution
Glycerol and glutaraldehyde are crosslinked 30min in water-bath, and bath temperature is maintained at 50-55 DEG C；
S4, castor oil is added into the mixed liquor after crosslinking, is uniformly mixed, and with lemon acid for adjusting pH to 4, be made grease proofing
Coating.
As a further solution of the present invention: the forming paper is prepared by the following method: 2 progress of coating point take every time
The good oil-proof paint of quantitative configuration is evenly coated in body paper surface, coating weight 1mL/120cm with coating bar2, dry at 60 DEG C
The 2nd coating of progress is dried in 1min, taking-up, and coating weight is identical, and forming paper is made in 60 DEG C of drying 1min again later.
Beneficial effects of the present invention:
1, forming paper of the invention is produced through cut paper, molding technical process, simple production process, easily operated,
The filter rod cigarette produced, suction quality significantly improve, and can significantly improve aroma quality, make smoke alcohol and exquisiteness is full, bright
Aobvious to reduce the original miscellaneous gas of tobacco product, irritation mitigates, and cigarette causes fragrant and latent Studies of The Aromatic Substances to obviously increase, and can effectively improve cigarette
The richness of fragrance and elegant sense, improve the comfort of suction, and low and middle-grade cigarettes are improved with the booster action of formula grade；
2, simultaneously, forming paper includes body paper and the oil-repellent for being coated on body paper surface, and the bulk composition of oil-repellent is
Chitosan and polyvinyl alcohol, in acid condition, the protonation in chitosan molecule chain are higher, the charged group in molecule
There is electrostatic repulsions, and chitosan molecule is made to become to unfold, and can form converging network by hydrogen bond between polyvinyl alcohol molecule,
So that the oil preventing performance of grease proofing forming paper is good；Chitosan is a kind of polysaccharide, is mentioned from the shell and fungal cell wall of crustacean
It takes, there is good biocompatibility, biological degradability and film forming, castor oil is also a kind of natural antibacterial agent, to big
Enterobacteria and staphylococcus aureus all have preferable inhibitory effect；The grease proofing forming paper being prepared has excellent waterproof
Grease proofing characteristic, while also there is antibacterial effect；The pipe tobacco filter tip being prepared using the grease proofing forming paper, it is environmentally protective, easy
In degradation, it can be substantially reduced the original miscellaneous gas of finished product cigarette, irritation mitigates, meanwhile, there is excellent anti-microbial property, guarantee fragrant
The quality of cigarette.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is the overall structure diagram of filter tip of the present invention.
In figure: 1, filter core；2, filler；3, forming paper.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
Refering to Figure 1, a kind of production technology of environment-friendly type filter tip, including filter core 1, filler 2 and forming paper 3, institute
The number for stating filter core 1 is two, and two filter cores 1 are respectively formed the both ends of filter tip, and filler 2 is between two filter cores 1, two
Forming paper 3 is enclosed on the outside of filter core 1 and filler 2；
The filter tip is prepared by following step:
Filler 2 is the expanded cut tobacco for adding essence, adds Mint Essence in expanded cut tobacco, then stores expanded cut tobacco
It air-dries, the mass ratio of expanded cut tobacco and both Mint Essences in filler 2 is 100:1~20:1, manufactures filter core 1, and filter core 1 wraps
Cellulose acetate filter rod and propene fibre filter stick are included, filler 2 is placed between two filter cores 1 by the axial direction of filler 2, then will
Forming paper 3 is arranged textured level pressure roll-in by surface and produces wrinkle pattern, then cuts forming paper 3 by paper cutter
It cuts, the length and width for the forming paper 3 being cut into is identical, wraps up except the circumferential exterior surface of 2 three of two filter cores 1 and filler
And stickup shaping paper 3 is to be joined together to form filter tip for two filter cores 1 and 2 three of filler.
Forming paper 3 includes body paper and the oil-repellent coated on body paper surface.
Body paper uses the raw material of following parts by weight: 55-65 parts of true qualities wood pulp, 25-30 parts of true qualities bagasse pulp；
Body paper is made by the following method: after mixing according to proportion by weight by true qualities wood pulp and true qualities bagasse pulp, pressing
According to normal paper production technique, it is prepared into body paper.
Oil-repellent is made of the raw material of following parts by weight: 180-200 parts of aqueous acetic acid, 2-3 parts of chitosan, distilled water
220-240 parts, 4-6 parts of polyvinylalcohol solids powder, 1-2 parts of glycerol, 1-2 parts of glutaraldehyde and 1-2 parts of castor oil；
Oil-repellent is prepared by following steps:
S1, aqueous acetic acid is added in chitosan, using magnetic stirrer 30min, temperature is maintained at 55 DEG C, to it
Sufficiently dissolution, forms homogeneous and transparent solution, chitosan solution is made；
Wherein, the volume ratio of acetic acid and water is 1:20 in aqueous acetic acid；
S2, polyvinylalcohol solids powder is added in container, distilled water is added, whisking 15min under the conditions of 95 DEG C makes
It is sufficiently dissolved, and is configured to poly-vinyl alcohol solution；
S3, chitosan solution is mixed with poly-vinyl alcohol solution, is placed on thermostat water bath, controlled at 60 DEG C, made
45min is stirred with electric mixer, the mixed solution of chitosan and poly-vinyl alcohol solution is obtained, is successively added into mixed solution
Glycerol and glutaraldehyde are crosslinked 30min in water-bath, and bath temperature is maintained at 50-55 DEG C；
S4, castor oil is added into the mixed liquor after crosslinking, is uniformly mixed, and with lemon acid for adjusting pH to 4, be made grease proofing
Coating.
Forming paper 3 is prepared by the following method: 2 progress of coating point, the oil-proof paint for taking quantitative configuration good every time, with coating
Bar is evenly coated in body paper surface, coating weight 1mL/120cm2, 1min is dried at 60 DEG C, the 2nd coating of progress is dried in taking-up,
Coating weight is identical, and forming paper 3 is made in 60 DEG C of drying 1min again later.
Beneficial effects of the present invention:
1, forming paper 3 of the invention is produced through cut paper, molding technical process, simple production process, easily operated,
The filter rod produced, suction quality significantly improve, and can significantly improve aroma quality, make smoke alcohol and exquisiteness is full, hence it is evident that drop
The low original miscellaneous gas of tobacco product, irritation mitigate, and cigarette causes fragrant and latent Studies of The Aromatic Substances to obviously increase, and can effectively improve cigarette fragrance
Richness and elegant sense, improve the comfort of suction, to low and middle-grade cigarettes be improved formula grade booster action；
2, simultaneously, forming paper 3 includes body paper and the oil-repellent for being coated on body paper surface；The bulk composition of oil-repellent is
Chitosan and polyvinyl alcohol, in acid condition, the protonation in chitosan molecule chain are higher, the charged group in molecule
There is electrostatic repulsions, and chitosan molecule is made to become to unfold, and can form converging network by hydrogen bond between polyvinyl alcohol molecule,
So that the oil preventing performance of grease proofing forming paper 3 is good；Chitosan is a kind of polysaccharide, is mentioned from the shell and fungal cell wall of crustacean
It takes, there is good biocompatibility, biological degradability and film forming, castor oil is also a kind of natural antibacterial agent, to big
Enterobacteria and staphylococcus aureus all have preferable inhibitory effect；The grease proofing forming paper 3 being prepared is prevented with excellent
The grease proofing characteristic of water, while also there is antibacterial effect；The pipe tobacco filter tip being prepared using the grease proofing forming paper 3, environmentally protective,
It is easy to degrade, the original miscellaneous gas of finished product cigarette can be substantially reduced, irritation mitigates, meanwhile, there is excellent anti-microbial property, guarantee
The quality of cigarette.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
1. a kind of production technology of environment-friendly type filter tip, which is characterized in that including filter core (1), filler (2) and forming paper (3), institute
The number for stating filter core (1) is two, and two filter cores (1) are respectively formed the both ends of filter tip, and the filler (2) is between two
Between filter core (1), forming paper (3) are enclosed on the outside of two filter cores (1) and filler (2)；
The filter tip is prepared by following step:
Filler (2) is the expanded cut tobacco for adding essence, adds Mint Essence in expanded cut tobacco, expanded cut tobacco is then stored wind
Dry, the mass ratio of expanded cut tobacco and both Mint Essences in filler (2) is 100:1~20:1, is manufactured filter core (1), described
Filter core (1) includes cellulose acetate filter rod and propene fibre filter stick, and the filler (2) is placed on two by the axial direction of filler (2)
Between a filter core (1), textured level pressure roll-in then is arranged by surface in forming paper (3) and produces wrinkle pattern, then will
Forming paper (3) is cut by paper cutter, and the length and width for the forming paper (3) being cut into is identical, two filter cores (1) and is filled out
Package and stickup shaping paper (3) are filled except the circumferential exterior surface of object (2) three with by two filter cores (1) and filler (2) three
It is joined together to form filter tip.
2. a kind of production technology of environment-friendly type filter tip according to claim 1, which is characterized in that forming paper (3) packet
Include body paper and the oil-repellent coated on body paper surface.
3. a kind of production technology of environment-friendly type filter tip according to claim 2, which is characterized in that the body paper is using following
The raw material of parts by weight: 55-65 parts of true qualities wood pulp, 25-30 parts of true qualities bagasse pulp；
The body paper is made by the following method: after mixing according to proportion by weight by true qualities wood pulp and true qualities bagasse pulp, pressing
According to normal paper production technique, it is prepared into body paper.
4. a kind of production technology of environment-friendly type filter tip according to claim 2, which is characterized in that the oil-repellent is by such as
The raw material of lower parts by weight is made: 180-200 parts of aqueous acetic acid, 2-3 parts of chitosan, 220-240 parts of distilled water, polyvinyl alcohol are solid
4-6 parts of body powder, 1-2 parts of glycerol, 1-2 parts of glutaraldehyde and 1-2 parts of castor oil；
The oil-repellent is prepared by following steps:
S1, aqueous acetic acid is added in chitosan, using magnetic stirrer 30min, temperature is maintained at 55 DEG C, sufficiently to it
Dissolution, forms homogeneous and transparent solution, chitosan solution is made；
Wherein, the volume ratio of acetic acid and water is 1:20 in aqueous acetic acid；
S2, polyvinylalcohol solids powder is added in container, distilled water is added, whisking 15min under the conditions of 95 DEG C fills it
Divide dissolution, is configured to poly-vinyl alcohol solution；
S3, chitosan solution is mixed with poly-vinyl alcohol solution, is placed on thermostat water bath, controlled at 60 DEG C, use electricity
Dynamic blender stirs 45min, obtains the mixed solution of chitosan and poly-vinyl alcohol solution, glycerol is successively added into mixed solution
With glutaraldehyde, 30min is crosslinked in water-bath, bath temperature is maintained at 50-55 DEG C；
S4, castor oil is added into the mixed liquor after crosslinking, is uniformly mixed, and with lemon acid for adjusting pH to 4, grease proofing painting is made
Material.
5. a kind of production technology of environment-friendly type filter tip according to claim 1, which is characterized in that the forming paper (3) by
Following method preparation: 2 progress of coating point, the oil-proof paint for taking quantitative configuration good every time are evenly coated in body paper with coating bar
Surface, coating weight 1mL/120cm2, 1min is dried at 60 DEG C, the 2nd coating of progress is dried in taking-up, and coating weight is identical, later
Again in 60 DEG C of drying 1min, it is made forming paper (3).
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| CN201910294685.8A CN109864338A (en) | 2019-04-12 | 2019-04-12 | A kind of production technology of environment-friendly type filter tip |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910294685.8A CN109864338A (en) | 2019-04-12 | 2019-04-12 | A kind of production technology of environment-friendly type filter tip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547500A (en) * | 2019-08-20 | 2019-12-10 | 牡丹江恒丰纸业股份有限公司 | Production method of wrinkling paper for improving cigarette taste absorbing filter rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943456A (en) * | 2006-08-09 | 2007-04-11 | 焦作市卷烟材料有限公司 | Water-proof, damp-proof and leakage-proof cigarette holder filter stick and its producing method |
| CN103564642A (en) * | 2013-11-26 | 2014-02-12 | 福建中烟工业有限责任公司 | Filter tip containing cut tobacco |
| CN103717803A (en) * | 2011-07-28 | 2014-04-09 | 德尔福特集团有限公司 | Oil-resistant filter wrapper paper |
| CN103750561A (en) * | 2014-01-20 | 2014-04-30 | 福建中烟工业有限责任公司 | Filter tip, cigarette and producing method of filter tip |
| CN108669649A (en) * | 2018-08-27 | 2018-10-19 | 滁州卷烟材料厂 | A kind of production technology of pipe tobacco filter tip |
| WO2018215781A1 (en) * | 2017-05-24 | 2018-11-29 | Elucid8 Holdings Ltd. | Tobacco-containing consumable for aerosol generating devices |
-
2019
- 2019-04-12 CN CN201910294685.8A patent/CN109864338A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943456A (en) * | 2006-08-09 | 2007-04-11 | 焦作市卷烟材料有限公司 | Water-proof, damp-proof and leakage-proof cigarette holder filter stick and its producing method |
| CN103717803A (en) * | 2011-07-28 | 2014-04-09 | 德尔福特集团有限公司 | Oil-resistant filter wrapper paper |
| CN103564642A (en) * | 2013-11-26 | 2014-02-12 | 福建中烟工业有限责任公司 | Filter tip containing cut tobacco |
| CN103750561A (en) * | 2014-01-20 | 2014-04-30 | 福建中烟工业有限责任公司 | Filter tip, cigarette and producing method of filter tip |
| WO2018215781A1 (en) * | 2017-05-24 | 2018-11-29 | Elucid8 Holdings Ltd. | Tobacco-containing consumable for aerosol generating devices |
| CN108669649A (en) * | 2018-08-27 | 2018-10-19 | 滁州卷烟材料厂 | A kind of production technology of pipe tobacco filter tip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547500A (en) * | 2019-08-20 | 2019-12-10 | 牡丹江恒丰纸业股份有限公司 | Production method of wrinkling paper for improving cigarette taste absorbing filter rod |
| CN110547500B (en) * | 2019-08-20 | 2022-08-09 | 牡丹江恒丰纸业股份有限公司 | Production method of wrinkling paper for improving cigarette taste absorbing filter rod |
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Application publication date: 20190611 |