CN102669815B - Method for preparing cigarette dual-fiber hybrid filter tip by utilizing soybean fibers - Google Patents

Abstract

The invention relates to a method for preparing a cigarette dual-fiber hybrid filter tip by utilizing soybean fibers, and the method comprises the following steps of: disentangling and stretching a soybean fiber bundle, eliminating surface static electricity and reducing curling and winding of the fibers; forming the surface wet soybean fibers and cellulose acetate fibers in a ratio of 4:1 into tows, and evenly mixing the two fibers; transversely stentering the evenly mixed tow, drawing till no obvious lamination, and evenly applying a plasticizer to the surface; fabricating a cigarette filter stick by means of a filter stick forming machine, and then cutting the filter stick into filter tips for wrapping cigarettes. Compared with the prior art, the filter tip prepared by the method provided by the invention is even in voids, and is good in effect of capturing granule-phase and gaseous-phase particles and larger in fiber absorption surface; the soybean fibers adopted in the invention belong to regenerable plant fibers and can be easily and biologically degraded under natural conditions. The soybean fiber-acetate fiber hybrid filter tip can be used for providing a new technical way for cigarette production while keeping the quality of cigarette smoking unchanged and reducing the harm of cigarette smoking.

Description

A kind of method of utilizing fibre and soya to prepare cigarette geminal fibers mixing filter tip

Technical field

The present invention relates to a kind of preparation method of cigarette filter, belong to the tobacco manufacture field.

Background technology

Filter tip is the Modern cigarette industry important component part, it relies on filter tip material to reduce harmful components in cigarette to absorption, the interception function of tar, nicotine and gas phase harmful components in cigarette smoke and enters the content in smoker oral cavity, thereby reduces the extent of injury of smoking to human body.Therefore, filter tip material is significant to cigarette harm-reducing.

The filter tip filtering technique was developed rapidly since invention from the thirties in 20th century, and filter tip material also experiences by development courses such as fold paper, polypropylene fibre, acetate fibers.In Modern cigarette industry production, basically all adopt acetate fiber as the filter tip filtering material, mainly be its good springiness, nontoxic, tasteless, Heat stability is good, resistance to suction is little, the cut-off filter effect is remarkable.Acetate fiber is a kind of artificial fiber that the wood pulp made take wood-fibred and acetic anhydride are produced as primary raw material.Due to technical reason, the production capacity of current China acetate fiber is limited, and the external interdependency of product is higher; The acetate fiber production procedure is longer, and producing cost is high, and economic scale elasticity is little, and the three wastes of generation need reclaim and can not recycle.Along with the protection of society to forestry products and agricultural product price, the cost of material that acetate fiber is produced is also constantly soaring.

Based on the removal effect of filter tip to harmful constituents in cigarette flue gas, the filter tip technical research is rapidly developed, composite filter tip, groove filter tip, biochemical filter tip, add perfume (or spice) (medicine) filter tip, active carbon filter continuous generation the mutually, its filtration to harmful substances in flue gas has significant effect, and portioned product is for actual production.But these filter tips all are based on acetate fiber improves the adsorption filtration ability of filter tip by the selective absorption granular materials that adds various dose in the filter tip process for basis.These sorbing materials all need to adhere to certain to be relied on material could processing link to reach to subtract the effect that Jiao goes evil, and can't apply separately.Seek environmental protection, renewable, nontoxic, tasteless, the significant filter tip material of adsorption effect is the important directions of cigarette industry development, can avoid thus the limitation of unification filter tip material to industry development, improves the application power of product.

At present, have at home take fibre and soya as raw material, after preparation, indirectly join research and the application example in the mouth rod.Hongyunhonghe Tobacco (Group) Co., Ltd. has invented a kind of by modulation soybean fibrillarin, soybean protein isolate, soybean function albumen and soybean protein polypeptide, through granulation, be made into the soybean fibrillarin particle, add in filter stick the method (" a kind of soybean fibrillarin composite tip stick and preparation method thereof " application number 201110086688.6) of making composite filter to, belong to the filter stick application that utilizes the fibre and soya extract to carry out.A kind of new and effective refill filter stick---cigarette CAPF filter stick has been invented by Nantong Cigarette Filter Co., Ltd., the method is in the wood pulp of papermaking, to have added one or several of acid fiber by polylactic, fibre and soya, grass fiber, bamboo fibre, cotton fiber, flaxen fiber, pipe tobacco, other semisynthetic fibres, regenerated fiber, make paper filter element, then make filter stick (" the cigarette manufacturing process of CAPF filter stick " application number 201110230518.0), this patent is that a kind of fibre and soya that utilizes carries out as papermaking wood pulp additive the technology that filter stick reproduces.

Fibre and soya is a kind of artificial beef plant, be the soybean meal that presses the oil be raw material, utilize biotechnology to extract in dregs of beans Globulin, by adding functional aid and changing protein steric structure, through wet spinning, form the artificial plant fiber.Because the main component of fibre and soya is vegetable protein, after naturally throwing aside, be easy to biodegradation, belong to the environment friendly material, be described as " environment-protection fiber of 21 century ".The present invention is at the intrafascicular fibre and soya that directly adds of filter acetate fibres, makes geminal fibers mixing filter tip.With fibre and soya, partly substitute acetate fiber, for the selection of filter tip material provides a kind of new approach.

Summary of the invention

Given this, the object of the present invention is to provide a kind of environmental protection more, composite filter tip preparation method that production cost is low.

For solving the problems of the technologies described above, technical scheme provided by the invention is, a kind of method of utilizing fibre and soya to prepare cigarette geminal fibers mixing filter tip is provided, and the method comprises the following steps:

(1) fibre and soya Shu Lishun is launched, eliminate surface electrostatic and reduce the fiber crimp winding;

(2) proportionally the fibre and soya after moistened surface is managed into to tow strip with acetate fiber, by tow strip by stent, receive width, stent sequentially carries out 5 ~ 7 mixing that two kinds of fibers are evenly mixed, add the part acetate fiber and make backing material to improve filter tip intensity, fibre and soya and acetate fiber mix two kinds of raw materials through lamination cross directional stretch repeatedly, to guarantee the support effect of acetate fiber to the blending tow strip;

(3) by the horizontal stent of even mixed tow strip, be stretched to without obvious lamination, to surface uniform, apply plasticizer;

(4) use filter-stick forming device to make filter stick for cigarettes, through cutting after rod becomes filter tip, for cigarette, roll.

Useful is, the mixing portion fibre and soya is that raw material prepares cigarette filter in acetate fiber, utilize that the fibre and soya fineness is little, diameter is even, surperficial special structure form strengthens holding back and suction-operated harmful components in cigarette, reduce the harm of harmful substances in flue gas to human body, for the processing of cigarette industry filter tip material provides a kind of technological approaches.

Further, the mode of eliminating surface electrostatic in described step (1) be by the fibre and soya bundle after launching be placed in that relative humidity is 90%, temperature be 40 ℃ added wet tank 10 ~ 15 minutes.Fibre and soya drying regime lower surface easily forms static charge accumulation, and entrained electric charge mostly is positive charge, and this has stronger adsorption capacity to the free radical harmful components with negative electrical charge in flue gas.

Further, in described step (2), ratio is 4:1.

Further, in described step (3), plasticizer is glyceryl triacetate.

Compared with prior art, the present invention utilizes fibre and soya Partial Replacement acetate fiber, makes the performance indications of filter tip obtain many-sided lifting, simultaneously, and for the utilization of other additives of filter tip provides a better carrier.The raw material dregs of beans of fibre and soya belongs to renewable resource, and raw material sources are abundant, and cost is low, and processing waste material can be used for the production of protein feed, so the fibre and soya process of manufacture is pollution-free.With acetate fiber, compare, the fibre and soya fineness is little, the diameter uniformity, and the filter tip gap of making thus is even, can effectively reduce the short stream of flue gas and stream phenomenon, and is good to grain phase and gas phase particle interception result in flue gas.By scanning electron microscope (SEM) photograph, can find out, the fibre and soya surface has typical groove structure, and this has not only increased the fibers adsorption surface area, and groove structure also has better interception result.More usefully, the fibre and soya hygroscopicity is strong than acetate fiber, and this also is conducive to the development and use of humectant for smoke.Fibre and soya that the present invention adopts derives from the dregs of beans after soybean processing, belongs to reproducible string, and its main component is soybean protein, under field conditions (factors) easily biodegradation.Fibre and soya is constant at reservation cigarette sucking quality with the use of acetate fiber mixing filter tip, when reducing smoking property of cigarette harm, also for production of cigarettes, provides a new technological approaches.

The accompanying drawing explanation

Fig. 1 is cigarette of the present invention acetate fiber surface scan Electronic Speculum picture.

Fig. 2 is fibre and soya surface scan Electronic Speculum picture of the present invention.

The specific embodiment

Use the soybean protofilament with acetate fiber, to prepare geminal fibers mixing filter tip with cigarette.At first after 5kg soybean protofilament being made in order in the longitudinal direction at the wide thin layer of width Uniform Tension generate 25cm, a little atomizing humidifying performance or be placed in that relative humidity is 90%, temperature is that the wet tank that adds of 40 ℃ makes its surface wettability reduce curling, electric discharge phenomena that static causes.Naturally place and made surperficial moisture content natural evaporation in 15 minutes.The acetate fiber bundle drawing is launched into to thin layer, makes the thin layer width identical with the fibre and soya stretched width; By the fibre and soya layer after moistened surface and the overlapping pencil that is rolled into admixed together of acetate fiber thin layer, then carry out mixing to stretch for 5 times two kinds of fibers are mixed, form the composite fibre bundle.Composite fibre bundle cross directional stretch is to lamelliform to 40cm, and the use glyceryl triacetate is made plasticizer, evenly sprays the thin layer surface.Use KDF2 type filter-stick forming device to roll as cigarette filter rod.Filter stick is manufactured experimently for cigarette through cutting after rod is processed, and trial product carries out analysis of experiments, uses simultaneously with batch pipe tobacco and adopts the acetate fiber filter tip to do contrast.Filter tip outward appearance, material mass detect and detect according to GB/T5606.1-2004, GB5606.3-2005, GB5606.6, result such as table 1.The test of trial-production cigarette smoke components is according to GB/T19609-2004, GB5606.5-2005, YC/T156-2001, YC/T157-2001, test result such as table 2.Fibre and soya filter tip trial-production cigarette is as shown in table 3 on the harmful substances in flue gas impact.

Due to what adopt, be the primary colors fibre and soya as can be seen from Table 1, phase Dichlorodiphenyl Acetate filter tip fibre and soya filter tip integral body is faint yellow, weight, circumference, hardness, resistance to suction be all in cigarette filter processing allowed band under equal length, shows that thus fibre and soya and acetate fiber mixing filter tip can reach the industrial index requirement with the acetic acid filter tip on physical index.From table 2, table 3, can find out, the trial-production cigarette of equal length filter tip, in geminal fibers mixing filter tip cigarette flue gas main component, nicotine, ammonia, NNK are in detecting error range, and the removal effect of phenol, crotonaldehyde is better than the acetate fiber filter tip, illustrate that geminal fibers mixing filter tip can play good adsorption filtration effect to flue gas, fibre and soya has certain selective removal effect to harmful substances in flue gas.

Table 1 cellulose acetate filter rod and geminal fibers mixing filter stick basic parameter contrast table (filter stick length: 144mm)

?	Color	Weight (g)	Circumference (mm)	Hardness (%)	Resistance to suction (Pa)
						Cellulose acetate filter rod	In vain	0.842	24.209	90.733	3899
Geminal fibers mixing filter stick	Yellowish	0.828	24.138	88.907	3932

Two kinds of different filter tip cigarette flue gas main component contrast (filter length: 24mm) of table 2

The main harmful components contrast of two kinds of different filter tip cigarette main flumes of table 3 (filter length: 24mm)

Component content	Testing standard	Geminal fibers mixing filter tip cigarette	The acetate fiber filter tip cigarette
				Phenol (μ g/ props up)	YC/T255-2008	11.72	14.36
Crotonaldehyde (μ g/ props up)	YC/T254-2008	22.5	24.38
				NNK(ng/ props up)	GB/T23228-2008	3.7	3.68
Ammonia	YC/T377-2010	7.0	6.2

Claims (1)

1. a method of utilizing fibre and soya to prepare cigarette geminal fibers mixing filter tip, is characterized in that, the method comprises the following steps:

(1) fibre and soya Shu Lishun is launched, eliminates surface electrostatic and reduce fiber crimp and be wound around, concrete grammar be by the fibre and soya bundle after launching be placed in that relative humidity is 90%, temperature be 40 ℃ added wet tank 10～15 minutes;

(2) according to the 4:1 ratio, the fibre and soya after moistened surface is managed into to tow strip with acetate fiber, by tow strip by stent, receive width, stent sequentially carries out 5～7 mixing that two kinds of fibers are evenly mixed;

(3) by the horizontal stent of even mixed tow strip, be stretched to without obvious lamination, to surface uniform, apply plasticizer, described plasticizer is glyceryl triacetate;

(4) use filter-stick forming device to make filter stick for cigarettes, through cutting after rod becomes filter tip, for cigarette, roll.

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