CN110616505A - Composite acetate fiber non-woven material for cigarette filter tip, preparation method and application - Google Patents
Composite acetate fiber non-woven material for cigarette filter tip, preparation method and application Download PDFInfo
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- CN110616505A CN110616505A CN201910977445.8A CN201910977445A CN110616505A CN 110616505 A CN110616505 A CN 110616505A CN 201910977445 A CN201910977445 A CN 201910977445A CN 110616505 A CN110616505 A CN 110616505A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/485—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
- D06M11/65—Salts of oxyacids of nitrogen
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/368—Hydroxyalkylamines; Derivatives thereof, e.g. Kritchevsky bases
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
Abstract
A composite acetate fiber non-woven material for a cigarette filter is prepared by mixing acetate fibers and other fibers. The other fibers are one, two or three of polylactic acid fibers, metal fibers and carbon fibers. The cellulose acetate nonwoven material contains 5-99 wt% cellulose acetate fiber and 1-95 wt% non-cellulose acetate fiber material. The preparation method comprises the following steps: opening cellulose acetate fiber, mixing with 1-95 wt% of non-acetate fiber material, carding, lapping and spunlacing to obtain the acetate fiber non-woven material. The acetate fiber non-woven material has a certain heat absorption effect and a certain filtering performance, can reduce the temperature of smoke and filter harmful components in the smoke. Meanwhile, after the fibers are mixed, the tensile strength of the non-woven material is enhanced, and the strength requirement of a filter stick formed by subsequent processing is met. The composite acetate fiber non-woven material can be used for producing non-combustion cigarette filters.
Description
Technical Field
The invention belongs to the technical field of cigarettes, and relates to a material in a cigarette filter tip and a preparation method thereof, in particular to a material with cooling and filtering functions on mainstream smoke of a non-combustible cigarette and a preparation method thereof.
Background
With the increasing severity of the global smoking control environment and the growing concern of consumers on health, the research and development of a novel tobacco product capable of comprehensively and greatly reducing the release amount of harmful components in tobacco gradually becomes the key development point of the tobacco industry of all countries in the world. The cigarette without burning is a novel tobacco product which heats the cut tobacco by a special heat source (below 500 ℃ or even lower) and only heats the cut tobacco without burning. Researches show that the release amount of harmful components in tobacco smoke is closely related to heating and burning temperature, and the release amount of the harmful components in the smoke can be obviously reduced by reducing the heating or burning temperature. The heating non-combustion type tobacco products are developed and researched by large international tobacco companies such as Philippi Morris production company (called Feimo for short) and R.J. Reynolds tobacco company (called Reynolds for short), and especially patent applications are made on heating non-combustion type cigarette cigarettes. Chinese patents applied by Felmo tobacco company include CN96194107.3, CN201190000997.0, CN201280018570.2, CN201280026033.2, CN201280054623.6, CN201280048973.1, CN201280054563.8, CN201180016009.6, CN 101778578A, CN 103889254A, etc.; chinese patents CN201180031721.3 and CN200780045783.3, etc. applied by Reynolds tobacco corporation all disclose the cigarette technology of heating non-combustion type cigarette. In China, tobacco companies such as Yunan Zhongyan and Zhejiang Zhongyan also apply related patent applications such as CN201710643438.5, CN201520442651.6, CN201710393624.8 and CN201710391934.6 to the non-combustion type cigarette. However, market tests of the first two commercial electric heating type non-combustible cigarette products (Accord and Heatbar) proposed by Felmo tobacco company have not been successful so far, which further shows that the electric heating type non-combustible cigarette products are still in the initial growth stage at present, and still have many problems, wherein the core problem is that the electric heating type non-combustible cigarette has poor smoking feeling, specifically the problems of high smoke temperature, poor smoke smoking uniformity and the like, which limits market popularization to a certain extent. At present, the research on heating non-combustion type cigarettes at home and abroad mainly focuses on cigarette devices, cigarette design, cigarette paper, heating modes, heater types and the like, and no relevant literature and patent reports are found for using mixed non-woven materials as materials of temperature reduction sections in cigarettes. There is therefore a great need to develop a nonwoven material which can be used in composite filter rods and which is effective in reducing the smoke temperature.
Disclosure of Invention
The invention aims to provide a composite acetate fiber non-woven material for a cigarette filter, a preparation method and application.
In order to achieve the purpose, the invention adopts the technical scheme that:
a composite acetate fiber non-woven material for a cigarette filter is prepared by mixing acetate fibers and other fibers.
Further, the composite acetate fiber non-woven material for the cigarette filter is a fiber web structure with surface density and thickness which are uniformly arranged in a three-dimensional way, and comprises a plurality of thin fiber webs which are laid together; each layer of thin fiber net is formed by carding mixed fibers into a single fiber state; the mixed fiber is a uniform mixture containing acetate fiber, polylactic acid fiber, metal fiber and carbon fiber.
In order to obtain the composite acetate fiber non-woven material, the invention designs the physical properties of raw materials of acetate fiber, polylactic acid fiber, metal fiber and carbon fiber, the components of a composite net and the design of a binary three-dimensional composite net forming process. The structure is that other fibers with different physical properties are respectively and uniformly mixed with acetate fibers through opening and mixing before carding. Then carding the mixed fibers into a single fiber state, enabling the fibers to be in a thin fiber web state, and then laying layers of thin fiber webs by a lapping process to increase the surface density and thickness of the thin fiber webs to form a three-dimensional uniformly-arranged fiber web.
Optionally, the other fibers are one, two or three of polylactic acid fibers, metal fibers and carbon fibers.
Optionally, the acetate fiber fineness is 1 denier to 25 denier.
Optionally, the fineness of the polylactic acid fiber is 1.5-3.5 deniers, the fineness of the carbon fiber is 1.0-40 deniers, and the fineness of the metal fiber is 5-40 deniers.
Optionally, the length of the acetate fibers and other fibers is 15mm to 80 mm.
Optionally, the mass ratio of the acetate fiber is 5% -99%, and the mass ratio of the other fibers is 1% -95%.
Optionally, the composite acetate fiber non-woven material for the cigarette filter contains 5 wt% -99 wt% of acetate cellulose fiber and 1 wt% -95 wt% of polylactic acid fiber.
Optionally, the composite acetate fiber non-woven material for the cigarette filter contains 5 wt% -99 wt% of acetate cellulose fiber and 1 wt% -95 wt% of metal fiber.
Optionally, the composite acetate fiber non-woven material for the cigarette filter contains 70 wt% -99 wt% of acetate cellulose fiber and 1 wt% -30 wt% of carbon fiber.
Optionally, the composite cellulose acetate fiber non-woven material for the cigarette filter contains 5 wt% -98 wt% of cellulose acetate fibers, 1 wt% -94 wt% of polylactic acid fibers and 1 wt% -94 wt% of metal fibers.
Optionally, the acetate fibers and other fibers are circular, X-shaped, or Y-shaped in cross-section.
A processing method of a composite acetate fiber non-woven material for a non-combustible cigarette holder comprises the following steps:
A. carding: in the carding stage, a two-pass carding process is adopted, the first pass is used for carding the fiber to be carded to form a fiber web, and then the two carded fiber webs are fed into a second pass carding machine in an overlapping manner;
B. lapping: a cross lapping mode is adopted in the lapping stage;
C. pre-needling: in the pre-needling stage, one-step needling is adopted to reduce unevenness of the fiber web caused by drafting during spunlace;
D. fixing the net: in the net fixing stage, two front and back spunlaces are adopted, the feeding speed is low, and the pressure of the second spunlace is higher than that of the first spunlace;
E. hot rolling and finishing: the hot rolling finishing stage adopts two hot rolling on the front side and the back side;
the invention is further improved in that: the water-jet type feeding speed is 8 m/min-12 m/min;
the invention is further improved in that: the water pressure is 2MPa-5MPa during the water punching, two times of front and back water punching are carried out, and the pressure of the second water punching is 20% -25% higher than that of the first water punching;
the invention is further improved in that: the hot rolling finishing stage adopts two hot rolling on the front side and the back side, and the temperature is set to be 120-180 ℃.
In the carding and lapping processes of the acetate fibers, the fibers are light, and meanwhile, the static effect is large, so that the fibers are easily adsorbed on components such as a lapping machine, and the production is influenced, therefore, in order to ensure the smooth production, a workshop is required to have considerable humidity (generally speaking, the relative humidity is at least 75%), and meanwhile, an antistatic agent is sprayed on the fiber raw materials in an auxiliary mode.
Polylactic acid does not have great difficulty in carding and lapping, and requires a large humidity in a mixing process with acetate fibers, but is caused by the acetate fibers.
In the aspect of metal fibers, stainless steel fibers are taken as an example, if the stainless steel fibers are pure spun stainless steel fibers, the problems of poor carding effect, excessive burden on a machine and the like can be caused by a carding process due to high rigidity and strength of the stainless steel fibers, so that when a stainless steel fiber and acetate fiber blended product is produced, the content of the stainless steel fibers is not high enough (when the specific gravity of stainless steel in a small carding machine test reaches 60%, the machine may have poor operation), and the length is not long enough. When the carding machine is produced in a factory, the conveying process from the opened and mixed raw materials to the carding equipment is not suitable for conveying by using an airflow pipeline, because the density of stainless steel fibers is much higher than that of acetate fibers, the problem of uneven web formation can be caused due to different movement speeds in the airflow pipeline, and a conveying mode by using a conveying belt can be used.
In the aspect of carbon fiber, the filaments can be made into woven fabric and then combined with the acetate fiber non-woven fabric through needling or spunlace.
The following process conditions can be added according to specific situations:
1. the workshop humidity is 60% -85% when the non-woven material is prepared;
2. adding an antistatic agent when the acetate fiber and the polylactic acid fiber are carded, wherein the addition amount is 2-6%;
the formula of the antistatic agent is as follows: ca (NO)3)2·4H2O: 1.5% -2.5%; triethanolamine formate: 0.3 to 1.3 percent; 9.22 to 9.9 percent of water.
3. The stainless steel fiber content is less than 50 percent;
4. the utilization of carbon fibers includes two ways, one is: the carbon fiber filaments and the acetate fiber yarns are interwoven into cloth; secondly, the following steps: the carbon fiber filaments are made into woven fabric and then compounded with the acetate fiber non-woven fabric through needling or spunlace.
The composite acetate fiber non-woven material is applied to cigarettes and non-combustion cigarette filters.
The working principle of the invention is as follows: the mechanism of filtering the smoke mainly comprises the physical filtration of direct interception, inertial collision and diffusion deposition of smoke particles, wherein the direct interception mechanism is the most common, the fibers of the filter tip for the cigarette which is rolled by the acetate fiber non-woven fabric are arranged in a disordered way to form a three-dimensional space, the fibers in the filter tip have a certain specific surface area and a high probability of contacting with the smoke, and meanwhile, the mixed fibers have good heat absorption performance, so that the filter tip has certain filtration efficiency and also has a corresponding smoke cooling function.
Therefore, the material capable of effectively reducing the smoke temperature is obtained, and when the material is used in a composite filter tip, the smoke temperature of a non-combustible cigarette can be effectively reduced. Meanwhile, the material also has the advantages of selective adsorption, biodegradability and environmental friendliness. In addition, the material also has enough tensile strength, and can meet the strength requirement of subsequent processing into filter sticks. The composite fiber non-woven material can be used for producing non-combustion cigarette filters.
Due to the adoption of the technical scheme, the beneficial effects obtained by the invention comprise that: the acetate fibers and the polylactic acid fibers are green and environment-friendly fibers and are biodegradable, and the non-woven material prepared by the carding, needling, spunlace and hot rolling processing methods has a three-dimensional filtering space and has certain filtering efficiency on smoke; on the other hand, because the cellulose acetate fiber has low strength, the strength of the prepared non-woven fabric is difficult to meet the strength requirement of a subsequent rolled cigarette holder, and the polylactic acid fiber is a hot-melt fiber which can play a role in adhesion after being added for hot rolling treatment; the metal fibers and the carbon fibers have the strength far greater than that of the acetate fibers, the tensile strength of the non-woven material can be increased due to the mixing of the fibers and the acetate fibers, and meanwhile, the influence of the three-dimensional structure inside the material is small, so that the strength requirement of a filter stick formed by subsequent processing is met. Meanwhile, the polylactic acid fiber has certain phase change in the smoke temperature range of the non-combustible cigarette, the carbon fiber and the metal fiber have strong heat conduction and heat absorption capacity, and the special fibers are added into the acetate fiber, so that the special fibers have a certain cooling effect on smoke transmission of the non-combustible cigarette.
Drawings
Fig. 1 is a schematic view of the overall structure of a conventional acetate fiber filter cigarette holder.
Fig. 2 is a schematic structural diagram of the composite cellulose acetate fiber non-woven material for cigarette holders according to the present invention.
Fig. 3 is a schematic view of the manufacturing process of the composite acetate fiber non-woven material for cigarette holders according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
Fig. 2 and 3 show an embodiment of the composite acetate fiber non-woven material for the filter cigarette holder and the processing method thereof.
Example 1
The fineness of the acetate fiber in the composite acetate fiber non-woven material is 3 deniers, and the fineness of the polylactic acid fiber is 1.56 deniers. The mass ratio of the polylactic acid fiber is 10%, and the mass ratio of the acetate fiber is 90%.
The cross section of the acetate fiber is Y-shaped, and the average length of the acetate fiber is 38 mm; the polylactic acid fiber has an average length of 38mm and a circular cross section.
The preparation method of the composite acetate fiber non-woven material comprises the following steps:
opening and mixing the acetate fibers and the polylactic acid fibers according to the set proportion, then pre-carding on a cotton type carding machine, and setting basic parameters of carding: the speed of the cotton feeding roller is 0.43 r/min; the speed of the licker-in is 578.13 r/min; the speed of the cylinder is 555.00 r/min; the speed of the doffer is 7.71 r/min; the net outlet speed is 4.07 r/min; then carding the fiber net again before fixing the net through a GSA-500 carding machine, and setting basic parameters as follows: feeding 2.06HZ, 13.10HZ and 20.14HZ. cylinder into a needle machine for pre-needling by adopting a cross lapping mode, and then passing through a spunlace system, wherein the water pressure of a first spunlace is controlled to be 5MPa, the water pressure of a second spunlace is controlled to be 6.5MPa, and the production speed is 8 m/min; drying the spunlaced mixed nonwoven material, and then performing hot rolling finishing at 165 ℃ to obtain the composite acetate fiber nonwoven material for the non-combustible cigarette.
The grammage of the nonwoven fabric produced in this example was about 90g/m2And the thickness is 0.37 mm.
The obtained composite acetate fiber non-woven material has good appearance uniformity and consistent thickness, and a series of tests on the tensile property, the air permeability, the filtering efficiency, the filtering resistance and the smoke cooling effect are carried out on the composite acetate fiber non-woven material, so that the test result is good, and the expected effect of the filter material for the non-combustible cigarette is met. The test results were as follows:
the composite acetate fiber non-woven material is used for preparing a non-combustible cigarette filter with the length of 80-120 mm, the circumference of 22.00-24.00 mm and the suction resistance of 100-360mm water column.
The length of the filter tip is 25mm, the filter tip with the length of 80-120 mm is cut, the circumference is 22mm, the filter tip is subjected to detection of the smoke cooling effect of the non-combustible cigarette, and the obtained results are as follows:
non-burning cigarette smoke cooling effect
The data show that the composite acetate fiber non-woven material has good air permeability, the tensile strength can also meet the tensile requirement of subsequent processing, and meanwhile, the composite acetate fiber non-woven material used as a filter tip material of a non-combustible cigarette has good cooling effect on the non-combustible cigarette and meets the requirement of the material for the cigarette.
Example 2
The fineness of the acetate fiber in the composite acetate fiber non-woven material is 3 deniers, and the fineness of the polylactic acid fiber is 1.56 deniers. The mass ratio of the polylactic acid fiber is 50%, and the mass ratio of the acetate fiber is 50%.
The cross section of the acetate fiber is Y-shaped, and the average length of the acetate fiber is 38 mm; the polylactic acid fiber has an average length of 38mm and a circular cross section.
The preparation method of the composite acetate fiber non-woven material comprises the following steps:
opening and mixing the acetate fibers and the polylactic acid fibers according to a set ratio, then pre-carding on a cotton type carding machine, and setting basic parameters of carding: the speed of the cotton feeding roller is 0.45 r/min; the speed of the licker-in is 580.07 r/min; the speed of the cylinder is 560.00 r/min; the speed of the doffer is 7.8 r/min; the net outlet speed is 3.92 r/min; then carding the fiber net again before fixing the net through a GSA-500 carding machine, and setting basic parameters as follows: feeding 2.05HZ, 13.08HZ doffer and 20.24HZ. cylinder into a needle loom for pre-needling by adopting a cross lapping mode, and then passing through a spunlace system, wherein the water pressure of the first spunlace is controlled to be 5MPa, the water pressure of the second spunlace is controlled to be 6.5MPa, and the production speed is 8 m/min; drying the spunlaced mixed nonwoven material, and then performing hot rolling finishing at the temperature of 170 ℃ to obtain the composite acetate fiber nonwoven material for the non-combustible cigarette.
The grammage of the nonwoven fabric produced in this example was about 45g/m2And the thickness is 0.39 mm.
The obtained composite acetate fiber non-woven material has good appearance uniformity and consistent thickness, and a series of tests on the tensile property, the air permeability, the filtering efficiency, the filtering resistance and the smoke cooling effect are carried out on the composite acetate fiber non-woven material, so that the test result is good, and the expected effect of the filter material for the non-combustible cigarette is met. The test results were as follows:
the composite acetate fiber non-woven material is used for preparing a non-combustible cigarette filter with the length of 80-120 mm, the circumference of 22.00-24.00 mm and the suction resistance of 100-360mm water column.
The length of the filter tip is 25mm, the filter tip with the length of 80-120 mm is cut off, the circumference is 22mm, the filter tip is subjected to the detection of the smoke cooling effect of the non-combustible cigarette,
the results obtained were as follows:
non-burning cigarette smoke cooling effect
Example 3
The fineness of the acetate fiber in the composite acetate fiber non-woven material is 8 denier, and the diameter of the stainless steel fiber is 8 mu m and 30 denier.
The proportion of the stainless steel fiber is 35 percent; the mass ratio of the polylactic acid fiber is 0, and the mass ratio of the acetate fiber is 65%.
The cross section of the acetate fiber is Y-shaped, and the average length of the acetate fiber is 38 mm; the stainless steel fibers had a length of 55mm and a circular cross-section.
The preparation method of the composite acetate fiber non-woven material comprises the following steps:
opening and mixing acetate fibers and stainless steel fibers according to a set proportion, then pre-carding on a cotton type carding machine, and setting basic carding parameters: the speed of the cotton feeding roller is 0.45 r/min; the speed of the licker-in is 580.07 r/min; the speed of the cylinder is 560.00 r/min; the speed of the doffer is 7.8 r/min; the net outlet speed is 3.92 r/min; then carding the fiber net again before fixing the net through a GSA-500 carding machine, and setting basic parameters as follows: feeding 2.05HZ, 13.08HZ doffer and 20.24HZ. cylinder into a needle loom for pre-needling by adopting a cross lapping mode, and then passing through a spunlace system, wherein the water pressure of the first spunlace is controlled to be 5MPa, the water pressure of the second spunlace is controlled to be 6.5MPa, and the production speed is 8 m/min; drying the spunlaced mixed nonwoven material, and then performing hot rolling finishing at the temperature of 170 ℃ to obtain the composite acetate fiber nonwoven material for the non-combustible cigarette.
The grammage of the nonwoven fabric produced in this example was about 151g/m2And the thickness is 1.093 mm.
The obtained composite acetate fiber non-woven material has good appearance uniformity and consistent thickness, and a series of tests on the tensile property, the air permeability, the filtering efficiency, the filtering resistance and the smoke cooling effect are carried out on the composite acetate fiber non-woven material, so that the test result is good, and the expected effect of the filter material for the non-combustible cigarette is met. The test results were as follows:
the composite acetate fiber non-woven material is used for preparing a non-combustible cigarette filter with the length of 80-120 mm, the circumference of 22.00-24.00 mm and the suction resistance of 100-360mm water column.
The length of the filter tip is 25mm, the filter tip with the length of 80-120 mm is cut, the circumference is 22mm, the filter tip is subjected to detection of the smoke cooling effect of the non-combustible cigarette, and the obtained results are as follows:
non-burning cigarette smoke cooling effect
Example 4
The fineness of the acetate fiber in the composite acetate fiber non-woven material is 3 deniers, and the fineness of the polylactic acid fiber is 1.56 deniers. The stainless steel fibers had a diameter of 8 μm and a denier of 30.
The mass ratio of the polylactic acid fiber is 10%, the mass ratio of the acetate fiber is 55%, and the mass ratio of the stainless steel fiber is 35%
The cross section of the acetate fiber is Y-shaped, and the average length of the acetate fiber is 38 mm; the cross section of the polylactic acid fiber is circular, and the average length of the polylactic acid fiber is 38 mm; the stainless steel fibers are circular in cross-section and have an average length of 55 mm.
The preparation method of the composite acetate fiber non-woven material comprises the following steps:
opening and mixing the acetate fiber, the polylactic acid fiber and the stainless steel fiber according to the set proportion, then pre-carding on a cotton type carding machine, and setting the basic parameters of carding: the speed of the cotton feeding roller is 0.44 r/min; the speed of the licker-in is 588 r/min; the speed of the cylinder is 575.00 r/min; the speed of the doffer is 7.8 r/min; the net outlet speed is 4 r/min; then carding the fiber net again before fixing the net through a GSA-500 carding machine, and setting basic parameters as follows: feeding 2HZ, doffer 14HZ and cylinder 20HZ. into a needle machine for pre-needling by adopting a cross lapping mode, and then passing through a spunlace system, wherein the water pressure of a first spunlace is controlled to be 5MPa, the water pressure of a second spunlace is controlled to be 6.5MPa, and the production speed is 8 m/min; drying the spunlaced mixed nonwoven material, and then performing hot rolling finishing at 165 ℃ to obtain the composite acetate fiber nonwoven material for the non-combustible cigarette.
The nonwoven fabric produced in this example had a grammage of about 110g/m2And the thickness is 0.32 mm.
The obtained composite acetate fiber non-woven material has good appearance uniformity and consistent thickness, and a series of tests on the tensile property, the air permeability, the filtering efficiency, the filtering resistance and the smoke cooling effect are carried out on the composite acetate fiber non-woven material, so that the test result is good, and the expected effect of the filter material for the non-combustible cigarette is met. The test results were as follows:
the composite acetate fiber non-woven material is used for preparing a non-combustible cigarette filter with the length of 80-120 mm, the circumference of 22.00-24.00 mm and the suction resistance of 100-360mm water column.
The length of the filter tip is 25mm, the filter tip with the length of 80-120 mm is cut, the circumference is 22mm, the filter tip is subjected to detection of the smoke cooling effect of the non-combustible cigarette, and the obtained results are as follows:
non-burning cigarette smoke cooling effect
Example 5
The fineness of the acetate fiber in the composite acetate fiber non-woven material of the embodiment is 8 deniers, and the fineness of the polylactic acid fiber is 1.56 deniers. The diameter of the carbon fiber is 6 um.
The mass ratio of the polylactic acid fiber is 25%, the mass ratio of the acetate fiber is 25%, and the mass ratio of the carbon fiber is 50%
The cross section of the acetate fiber is Y-shaped, and the average length of the acetate fiber is 38 mm; the cross section of the polylactic acid fiber is circular, and the average length of the polylactic acid fiber is 38 mm; the carbon fibers were circular in cross section and had an average length of 38 mm.
The preparation method of the composite acetate fiber non-woven material comprises the following steps:
opening and mixing the acetate fiber, the polylactic acid fiber and the carbon fiber according to the set proportion, then pre-carding on a cotton type carding machine, and setting basic parameters of carding: the speed of the cotton feeding roller is 0.45 r/min; the speed of the licker-in is 598 r/min; the speed of the cylinder is 572.00 r/min; the speed of the doffer is 7.81 r/min; the net outlet speed is 4.2 r/min; then carding the fiber net again before fixing the net through a GSA-500 carding machine, and setting basic parameters as follows: feeding 2.1HZ, 14HZ doffer and cylinder 20HZ. into a needle machine for pre-needling by adopting a cross lapping mode, and then carrying out spunlace by a spunlace system, wherein the water pressure of a first spunlace is controlled to be 5MPa, the water pressure of a second spunlace is controlled to be 6.5MPa, and the production speed is 8 m/min; drying the spunlaced mixed nonwoven material, and then performing hot rolling finishing at the temperature of 170 ℃ to obtain the composite acetate fiber nonwoven material for the non-combustible cigarette.
The grammage of the nonwoven fabric produced in this example was about 145g/m2The thickness is 0.45 mm.
The obtained composite acetate fiber non-woven material has good appearance uniformity and consistent thickness, and a series of tests on the tensile property, the air permeability, the filtering efficiency, the filtering resistance and the smoke cooling effect are carried out on the composite acetate fiber non-woven material, so that the test result is good, and the expected effect of the filter material for the non-combustible cigarette is met. The test results were as follows:
the composite acetate fiber non-woven material is used for preparing a non-combustible cigarette filter with the length of 80-120 mm, the circumference of 22.00-24.00 mm and the suction resistance of 100-360mm water column.
The length of the filter tip is 25mm, the filter tip with the length of 80-120 mm is cut, the circumference is 22mm, the filter tip is subjected to detection of the smoke cooling effect of the non-combustible cigarette, and the obtained results are as follows:
non-burning cigarette smoke cooling effect
The data show that the composite acetate fiber non-woven material has good air permeability, the tensile strength can also meet the tensile requirement of subsequent processing, and meanwhile, the composite acetate fiber non-woven material used as a filter tip material of a non-combustible cigarette has good cooling effect on the non-combustible cigarette and meets the requirement of the material for the cigarette.
The foregoing description and description of the embodiments are provided to facilitate understanding and application of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications can be made to these teachings and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above description and the description of the embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (22)
1. A composite acetate fiber non-woven material for cigarette filters is characterized in that: the composite acetate fiber non-woven material is prepared by mixing acetate fibers and other fibers.
2. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein: the fiber net structure is a three-dimensional and uniform-arrangement fiber net structure with surface density and thickness, and comprises a plurality of thin fiber nets which are laid together; each layer of thin fiber net is formed by carding mixed fibers into a single fiber state; the mixed fiber is a uniform mixture containing acetate fiber and the other fibers.
3. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein: the other fibers include reinforcing fibers and high thermal conductivity fibers.
4. The composite acetate fiber nonwoven material for cigarette filters according to claim 3, wherein: the reinforcing fibers comprise polylactic acid fibers, and the high-thermal-conductivity fibers comprise metal fibers or carbon fibers.
5. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein: the fineness of the acetate fiber is 1 to 25 denier.
6. The composite acetate fiber nonwoven material for cigarette filters according to claim 4, wherein: the fineness of the polylactic acid fiber is 1.5-3.5 deniers, the fineness of the carbon fiber is 1.0-40 deniers, and the fineness of the metal fiber is 5-40 deniers.
7. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein: the length of the acetate fiber and other fibers is 15 mm-80 mm.
8. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein: the mass ratio of the acetate fiber is 5-99%, and the mass ratio of other fibers is 1-95%.
9. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein:
contains 5 to 99 weight percent of cellulose acetate fiber and 1 to 95 weight percent of polylactic acid fiber.
10. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein:
contains 5 to 99 weight percent of cellulose acetate fiber and 1 to 95 weight percent of metal fiber.
11. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein:
contains 70 wt% -99 wt% of cellulose acetate fiber and 1 wt% -30 wt% of carbon fiber.
12. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein:
contains 5 to 98 weight percent of cellulose acetate fiber, 1 to 94 weight percent of polylactic acid fiber and 1 to 94 weight percent of metal fiber.
13. The composite acetate fiber nonwoven material for cigarette filters according to claim 1, wherein: the cross section of the fiber is circular, X-shaped or Y-shaped.
14. The method for processing the composite acetate fiber non-woven material for cigarette filters according to any one of claims 1 to 13, wherein the method comprises the following steps: uniformly mixing other fibers with different physical properties with acetate fibers respectively through opening and mixing before carding; then carding the mixed fibers into a single fiber state, enabling the fibers to be in a thin fiber web state, and then laying layers of thin fiber webs by a lapping process to increase the surface density and thickness of the thin fiber webs to form a three-dimensional uniformly-arranged fiber web.
15. The method for processing the composite acetate fiber non-woven material for the cigarette filter according to claim 14, which is characterized by comprising the following steps:
A. carding: in the carding stage, a two-pass carding process is adopted, the first pass is used for carding the fiber to be carded to form a fiber web, and then the two carded fiber webs are fed into a second pass carding machine in an overlapping manner;
B. lapping: a cross lapping mode is adopted in the lapping stage;
C. pre-needling: in the pre-needling stage, one-step needling is adopted to reduce unevenness of the fiber web caused by drafting during spunlace;
D. fixing the net: in the net fixing stage, two front and back spunlaces are adopted, the feeding speed is low, and the pressure of the second spunlace is higher than that of the first spunlace;
E. hot rolling and finishing: and in the hot rolling finishing stage, front and back hot rolling is adopted.
16. The method for processing the composite acetate fiber non-woven material for the cigarette filter according to claim 15, wherein the method comprises the following steps: the water-jet type feeding speed is 8 m/min-12 m/min.
17. The method for processing the composite acetate fiber non-woven material for the cigarette filter according to claim 15, wherein the method comprises the following steps: and (3) performing two front and back spunlacing under the water pressure of 2-5 MPa during spunlacing, wherein the pressure of the second spunlacing is 20-25% higher than that of the first spunlacing.
18. The method for processing the composite acetate fiber non-woven material for the cigarette filter according to claim 15, wherein the method comprises the following steps: the hot rolling finishing stage adopts two hot rolling on the front side and the back side, and the temperature is set to be 120-180 ℃.
19. The method for processing the composite acetate fiber non-woven material for cigarette filters according to claim 14, wherein the method comprises the following steps: when the metal fiber is adopted, a conveying belt is used for conveying; the content of metal fibers is less than 50%.
20. The method for processing the composite acetate fiber non-woven material for cigarette filters according to claim 14, wherein the method comprises the following steps: when the carbon fiber is adopted, the method comprises the following two modes: the carbon fiber filaments and the acetate fiber yarns are interwoven into cloth; the carbon fiber filaments are made into woven fabric and then compounded with the acetate fiber non-woven fabric through needling or spunlace.
21. The method for processing the composite acetate fiber non-woven material for cigarette filters according to claim 14, wherein the method comprises the following steps:
the workshop humidity is 60% -85% when the non-woven material is prepared; and/or the first and/or second light sources,
adding an antistatic agent when common fibers and other fibers are carded, wherein the addition amount is 2-6%; and/or the first and/or second light sources,
the formula of the antistatic agent is Ca (NO)3)2·4H2The addition amount of O is 1.5 to 2.5 percent; the adding amount of triethanolamine formate is 0.3% -1.3%; the addition amount of water is 9.22-9.9%.
22. Use of the composite cellulose acetate nonwoven material according to any one of claims 1 to 13 in cigarettes and non-combustible cigarette filters.
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| CN112359481A (en) * | 2020-11-20 | 2021-02-12 | 湖北新阳特种纤维股份有限公司 | Process for preparing non-woven fabric by using cellulose diacetate flock and application of non-woven fabric |
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| CN113005634A (en) * | 2021-02-24 | 2021-06-22 | 李思鹏 | Moisture-absorbing and bacteriostatic spunlace non-woven fabric and preparation method thereof |
| CN113197344A (en) * | 2021-05-13 | 2021-08-03 | 云南中烟工业有限责任公司 | Composite acetate fiber, preparation method and application thereof |
| CN113786675A (en) * | 2021-09-09 | 2021-12-14 | 五邑大学 | Novel filtering material for purifying kitchen oil fume |
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