CN109846085A - A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod - Google Patents
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod Download PDFInfo
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- CN109846085A CN109846085A CN201811588425.3A CN201811588425A CN109846085A CN 109846085 A CN109846085 A CN 109846085A CN 201811588425 A CN201811588425 A CN 201811588425A CN 109846085 A CN109846085 A CN 109846085A
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- polylactic acid
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- crosslinking
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Abstract
The present invention discloses a kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, is related to cigarette filter tip rod technical field.A kind of preparation method of the netted polylactic acid silk screen cigarette filter tip rod, including polylactic acid tow is handled using chemical crosslinking, crosslinking with radiation and molecular modification post-crosslinking, obtain the polylactic acid tow with reticular structure；The polylactic acid tow obtained after crosslinking Treatment braiding is reticulated into polylactic acid silk screen；Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.With the polylactic acid silk screen with reticular structure at stick, thermal stability, mechanical property and the quality at stick can increase, and there is preferable cooling effect, while can reduce cost, can promote poly-lactic acid material and promote and apply in cigarette filter industry.
Description
Technical field
The present invention relates to cigarette filter tip rod technical field, it is specifically related to a kind of netted polylactic acid silk screen cigarette filter tip rod
Preparation method.
Background technique
For a long time, two kinds of filter-tip materials are mainly used in the market, first is that cellulose diacetate fibers, second is that polypropylene
Fiber, domestic annual usage amount is respectively 16,180,000 tons and 230,000 tons.It develops thus and substitutes traditional two vinegar using polylactic acid
Acid cellulose produces the new technology of filter stick for cigarettes, for tobacco business started except traditional vinegar fibre filter stick in addition to a kind of green, it is inexpensive,
Degradable novel filter stick；The cigarette filter manufactured with acid fiber by polylactic, there are four outstanding features: it is from annual
Plant, it is more cheap and easy to get than timber, it is at low cost；Complete biodegradable is out-and-out " green " product；Using melt spinning work
Skill manufactures tow, and processing cost is low, low in the pollution of the environment；Polar molecular structure determines that it has suction to the harmful components in flue gas
Echo Scavenging activity.So the use of polylactic acid filter tip, it will bring great change to cigarette filter industry.
Currently, designated position is opened and be placed on to tow packet mainly by the molding technique of polylactic acid filter rod, silk is wrapped
It is placed on the center line of tow traveling, and piddler direction is consistent with molding machine direction；Simultaneously by forming paper, hot melt adhesive, interior bonding
Line glue, plasticizer prepare in place；By the effect of plucker roller and loosening device, a branch of tow is fully deployed；It is applied by plasticizer
Adding system uniformly applies plasticizer to the tow being fully deployed；The tow for applying plasticizer is collapsed, when by opium pipe part
It is formed paper bag to wrap up in, forms cylindric filter item.The raw material used is polylactic acid wire-beam formings, but directly with polylactic acid tow
Molding filter rod is higher for the dosage of polylactic acid tow, and the cost is relatively high, and the cooling effect of molding filter rod
It is not ideal enough with suction effect, at the same using polylactic acid tow as the molding filter rod of raw material at stick quality because technique it is relatively multiple
It is miscellaneous, it is undesirable at stick quality, be not suitable for poly-lactic acid material and promoted and applied in cigarette filter industry.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the present invention provides a kind of netted polylactic acid silk screen cigarette filter tip rods
Preparation method can increase thermal stability, mechanical property and the quality at stick with the polylactic acid silk screen with reticular structure at stick,
And there is preferable cooling effect, while cost can be reduced, it can promote poly-lactic acid material and promoted and applied in cigarette filter industry.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions:
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
Polylactic acid tow is handled using chemical crosslinking, crosslinking with radiation and molecular modification post-crosslinking, is obtained with reticular structure
Polylactic acid tow；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment braiding is reticulated into polylactic acid silk screen；
Step 3: the molding of netted polylactic acid silk screen filter rod
Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
Further, the chemical crosslinking of the polylactic acid tow uses isocyanates, maleic anhydride, peroxide and three hydroxyls
Methylpropane causes the reticular structure that polylactic acid forms crosslinking as crosslinking agent, so improve polylactic acid tow heat resistance and
Increase mechanical property.
Further, the crosslinking with radiation of the polylactic acid tow uses gamma-rays and electron beam irradiation, increases average molecular
Quality forms tridimensional network, improves the fusing point of melting.
Further, relative molecular mass and reactive terminal base kind that the molecular modification post-crosslinking passes through change polylactic acid
Class controlled material structure and performance；
The molecular modification post-crosslinking includes using alkyl, carbon-carbon double bond, acyl group, epoxy-terminated and amide as active group
Group.
Further, the braiding of the netted polylactic acid silk screen include: the polylactic acid tow that will be obtained after crosslinking Treatment by
Polylactic acid silk screen is reticulated according to a fixed spacing, certain angle braiding；
The braiding spacing is no more than 5mm, and angle is 0-90 °, and the polylactic acid silk screen after braiding passes through filter tip rod forming machine
It is compound to be compounded to form the netted filter rod base rod of polylactic acid.
Another object of the present invention is to provide a kind of preparation methods of netted polylactic acid silk screen cigarette filter tip rod to prepare
Low temperature does not burn the application in cigarette filter tip rod.
Another object of the present invention is to provide a kind of cigarette, it is characterised in that: rolls up including above-mentioned netted polylactic acid silk screen
Tip for cigarette and cigarette section stick.
Beneficial effects of the present invention: netted polylactic acid silk screen cigarette filter tip rod of the invention and preparation method, with net
The polylactic acid silk screen of shape structure can increase thermal stability, mechanical property and the quality at stick at base rod, and have preferable cooling
Effect, while cost can be reduced, it can promote poly-lactic acid material and promoted and applied in cigarette filter industry.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the preparation flow figure of netted polylactic acid silk screen cigarette filter tip rod described in the embodiment of the present invention；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1:
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
Polylactic acid tow is handled using chemical crosslinking, crosslinking with radiation and molecular modification post-crosslinking, is obtained with reticular structure
Polylactic acid tow；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment braiding is reticulated into polylactic acid silk screen；
Step 3: the molding of netted polylactic acid silk screen filter rod
It is compound by the filter tip rod forming machine formation netted filter rod base rod of polylactic acid that webbed polylactic acid silk screen will be woven；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
The chemical crosslinking of the polylactic acid tow uses isocyanates, maleic anhydride, peroxide and trimethylolpropane
As crosslinking agent, cause the reticular structure that polylactic acid forms crosslinking, and then improves the heat resistance of polylactic acid tow and increase mechanics
Performance.
The crosslinking with radiation of the polylactic acid tow uses gamma-rays and electron beam irradiation, increases relative molecular mass, is formed
Tridimensional network improves the fusing point of melting.
The molecular modification post-crosslinking regulates and controls material by the relative molecular mass and reactive terminal base type for changing polylactic acid
Expect structure and performance；
The molecular modification post-crosslinking includes using alkyl, carbon-carbon double bond, acyl group, epoxy-terminated and amide as active group
Group.
The braiding of the netted polylactic acid silk screen includes: the polylactic acid tow that will obtain after crosslinking Treatment according between certain
Polylactic acid silk screen is reticulated away from the braiding of, certain angle；
The braiding spacing is no more than 5mm, and angle is 0-90 °, and the polylactic acid silk screen after braiding passes through filter tip rod forming machine
It is compound to be compounded to form the netted filter rod base rod of polylactic acid.
The technical program is illustrated combined with specific embodiments below:
Embodiment 1
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
The polylactic acid tow for having reticular structure is obtained using chemical crosslinking；
The chemical crosslinking of the polylactic acid tow use maleic anhydride crosslinking agent, the free radical of polylactic acid macromolecule side chain with
Radical reaction occurs for the double bond of MA, forms cross-linked structure, can improve the mechanical property and hydrophily of polylactic acid simultaneously；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment is reticulated into polylactic acid silk according to a fixed spacing, certain angle braiding
Net；
It weaves spacing and is no more than 5mm, it is the polylactic acid silk screen with reticular structure after braiding that angle, which is 0-90 °,.
Step 3: the molding of netted polylactic acid silk screen filter rod
Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
Embodiment 2
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
The polylactic acid tow for having reticular structure is obtained using chemical crosslinking；
The chemical crosslinking of the polylactic acid tow uses isocyanate crosslinking, causes the netted knot that polylactic acid forms crosslinking
Structure, and then improve the heat resistance of polylactic acid tow and increase mechanical property；
Using isocyanates as crosslinking agent, reaction rate is fast, can improve thermal stability, the mechanical property of material, heat
Shrinking percentage is only a quarter of normal condition to one third；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment is reticulated into polylactic acid silk according to a fixed spacing, certain angle braiding
Net；
It weaves spacing and is no more than 5mm, it is the polylactic acid silk screen with reticular structure after braiding that angle, which is 0-90 °,.
Step 3: the molding of netted polylactic acid silk screen filter rod
Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
Embodiment 3
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
The polylactic acid tow for having reticular structure is obtained using chemical crosslinking；
The chemical crosslinking peroxide and trimethylolpropane of the polylactic acid tow cause polylactic acid shape as crosslinking agent
At the reticular structure of crosslinking, and then improves the heat resistance of polylactic acid tow and increase mechanical property；But the third conduct of trihydroxy methyl
Other performance improvement is unobvious in addition to mechanical property when crosslinking agent；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment is reticulated into polylactic acid silk according to a fixed spacing, certain angle braiding
Net；
It weaves spacing and is no more than 5mm, it is the polylactic acid silk screen with reticular structure after braiding that angle, which is 0-90 °,.
Step 3: the molding of netted polylactic acid silk screen filter rod
Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
Embodiment 4
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
Gamma-rays and electron beam irradiation are used using crosslinking with radiation, increase relative molecular mass, forms tridimensional network,
Improve the fusing point of melting；Efficiency and yield are improved in contrast, and the scope of application is wider；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment is reticulated into polylactic acid silk according to a fixed spacing, certain angle braiding
Net；
It weaves spacing and is no more than 5mm, it is the polylactic acid silk screen with reticular structure after braiding that angle, which is 0-90 °,.
Step 3: the molding of netted polylactic acid silk screen filter rod
Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
Embodiment 5
A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, comprising the following steps:
Step 1: the crosslinking Treatment of polylactic acid tow
The relative molecular mass and reactive terminal base type controlled material knot that molecular modification post-crosslinking passes through change polylactic acid
Structure and performance；
The molecular modification post-crosslinking includes using alkyl, carbon-carbon double bond, acyl group, epoxy-terminated and amide as active group
Group.
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment is reticulated into polylactic acid silk according to a fixed spacing, certain angle braiding
Net；
It weaves spacing and is no more than 5mm, it is the polylactic acid silk screen with reticular structure after braiding that angle, which is 0-90 °,.
Step 3: the molding of netted polylactic acid silk screen filter rod
Webbed polylactic acid silk screen will be woven, the netted filter rod base rod of polylactic acid is compounded to form by filter tip rod forming machine；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
Embodiment 6
Molding filter rod is compared with the molding filter rod of above-described embodiment in a manner of conventional polylactic acid wire-beam forming:
The routine (prior art) at stick quality than embodiment 6 of the molding filter rod of embodiment 1-5 at least improves 50%；
Simultaneously in terms of cost, in embodiment 1-5,30% cost, embodiment have been saved with the embodiment 1-3 of chemical crosslinking
4 using the crosslinking with radiation save the cost of gamma-rays and electron beam irradiation are greater than 50%, and the molecular modification post-crosslinking of embodiment 5
The cost greater than 40% is saved；
In terms of cooling effect, showing that the filter rod cooling effect that embodiment 1-5 is formed is remote by test experiments
The filter rod obtained higher than conventional scheme；It is obtained by statistics, the netted polylactic acid silk screen cigarette filter tip rod energy that the present invention obtains
Increase cooling effect, improve into stick quality and reduce costs.
Embodiment 7
A kind of preparation method of the netted polylactic acid silk screen cigarette filter tip rod as described in embodiment 1-5 is to prepare low temperature non-ignitable
Burn the application in cigarette filter tip rod.
Embodiment 8
A kind of cigarette, including above-mentioned netted polylactic acid silk screen cigarette filter tip rod and cigarette section stick.
Netted polylactic acid silk screen cigarette filter tip rod of the invention and preparation method, with the polylactic acid silk screen with reticular structure
At base rod, can increase thermal stability, mechanical property and the quality at stick, and there is preferable cooling effect, at the same can reduce at
This, can promote poly-lactic acid material and promote and apply in cigarette filter industry.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
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 (7)
1. a kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod, it is characterised in that: the following steps are included:
Step 1: the crosslinking Treatment of polylactic acid tow
Polylactic acid tow is handled using chemical crosslinking, crosslinking with radiation and molecular modification post-crosslinking, obtains that there is the poly- of reticular structure
Lactic acid tow；
Step 2: the braiding of netted polylactic acid silk screen
The polylactic acid tow obtained after crosslinking Treatment braiding is reticulated into polylactic acid silk screen；
Step 3: the molding of netted polylactic acid silk screen filter rod
It is compound by the filter tip rod forming machine formation netted filter rod base rod of polylactic acid that webbed polylactic acid silk screen will be woven；
Step 4: packet paper, cutting tipping
In base rod outer cladding cork paper and cuts tipping and obtain the netted filter rod of polylactic acid.
2. the preparation method of netted polylactic acid silk screen cigarette filter tip rod as described in claim 1, it is characterised in that: the poly- cream
The chemical crosslinking of sour tow, as crosslinking agent, is caused poly- using isocyanates, maleic anhydride, peroxide and trimethylolpropane
Lactic acid forms the reticular structure of crosslinking, and then improves the heat resistance of polylactic acid tow and increase mechanical property.
3. the preparation method of netted polylactic acid silk screen cigarette filter tip rod as described in claim 1, it is characterised in that: the poly- cream
The crosslinking with radiation of sour tow uses gamma-rays and electron beam irradiation, increases relative molecular mass, forms tridimensional network, improves
The fusing point of melting.
4. the preparation method of netted polylactic acid silk screen cigarette filter tip rod as described in claim 1, it is characterised in that: the molecule
The relative molecular mass and reactive terminal base type controlled material structure and performance that modified post-crosslinking passes through change polylactic acid；
The molecular modification post-crosslinking includes using alkyl, carbon-carbon double bond, acyl group, epoxy-terminated and amide as active group.
5. the preparation method of netted polylactic acid silk screen cigarette filter tip rod as described in claim 1, it is characterised in that: described netted
The braiding of polylactic acid silk screen includes: that the polylactic acid tow that will be obtained after crosslinking Treatment is woven into according to a fixed spacing, certain angle
Netted polylactic acid silk screen；
The braiding spacing is no more than 5mm, and angle is 0-90 °, and the polylactic acid silk screen after braiding is compound by filter tip rod forming machine
It is compounded to form the netted filter rod base rod of polylactic acid.
6. prepared by a kind of preparation method of the netted polylactic acid silk screen cigarette filter tip rod as described in claim 1-5 any one
Low temperature does not burn the application in cigarette filter tip rod.
7. a kind of cigarette, it is characterised in that: including netted polylactic acid silk screen cigarette filter described in claim 1-5 any one
Stick and cigarette section stick.
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| CN201811588425.3A CN109846085A (en) | 2018-12-25 | 2018-12-25 | A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod |
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| CN201811588425.3A CN109846085A (en) | 2018-12-25 | 2018-12-25 | A kind of preparation method of netted polylactic acid silk screen cigarette filter tip rod |
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Application publication date: 20190607 |