CN107419433A - A kind of bamboo pulp can break up spun lacing material and preparation method - Google Patents
A kind of bamboo pulp can break up spun lacing material and preparation method Download PDFInfo
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- CN107419433A CN107419433A CN201710673493.9A CN201710673493A CN107419433A CN 107419433 A CN107419433 A CN 107419433A CN 201710673493 A CN201710673493 A CN 201710673493A CN 107419433 A CN107419433 A CN 107419433A
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- spun lacing
- bamboo pulp
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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
-
- 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
- D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
- D04H1/26—Wood pulp
-
- 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
- D04H1/425—Cellulose series
- D04H1/4258—Regenerated cellulose series
-
- 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
- D04H1/492—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 by fluid jet
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/10—Bamboo
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
- D10B2509/026—Absorbent pads; Tampons; Laundry; Towels
Abstract
The present invention relates to nonwoven techniques, spun lacing material and preparation method thereof can be broken up by disclosing a kind of bamboo pulp, the bamboo pulp can break up spun lacing material and is made up including mass percent of 10~80% bamboo pulp, 0~60% wood pulps, 10~60% man-made cellulose fibers through the Hydroentangled technique of wet-laying, and the grammes per square metre that the bamboo pulp can break up spun lacing material is 40~80 g/ ㎡.Its preparation method, including：1）Pulping, mill, pulp mixed liquor is made；2）Man-made cellulose fibers are added, prepare fiber mixture slurry；3）Titled net formation, pre- thorn, second dehydration；4）Spun lacing, suction, baking are made an uproar.The bamboo pulp of the present invention can break up spun lacing material selection certain material and is made by special wet method spunlace non-woven technique, can not only solve during post-processing because wet tissue Essence acts on, and the problem of causing dispersive property to decline, and its raw material is easy to get, production cost is low.
Description
Technical field
The present invention relates to one kind can break up non-woven material, more particularly to a kind of bamboo applied to personal hygiene nursing materials
Pulp can break up spun lacing material and preparation method, and spunlace non-woven technical field can be broken up by belonging to.
Background technology
A series of caused environmental issues after being popularized due to disposable personal care articles for use, in recent years, domestic and international enterprise
It is very active always in the research and probe that can break up non-woven material field.At present, in terms of research can break up non-woven material
Mainly there are two kinds of technique directions：One kind is to reach breaking up property of water using specific or modified adhesive；One kind is in raw material
With technologic particularization and differentiation, i.e. the raw material from specialty fibers structure and process makes gained non-woven cloth contact
Generation solution twines scattered after water.
CN201610765507.5, which is related to one kind, can break up degradable spunlace non-woven cloth and preparation method, by following weight
The raw material of percentage is prepared：Viscose rayon 15~30%, tencel 5~10%, surplus are wood pulps.
CN201610764503.5 discloses a kind of wet-laying spunlace jacquard nonwoven cloth and preparation method thereof,.By following
The raw material of percentage by weight is prepared：Viscose rayon 15-30%, water-soluble fibre 5-10%, surplus are wood pulps.The present invention
Wet-laying spunlace jacquard nonwoven cloth can break up good performance, strength height, novel appearance, the wet-laying spunlace jacquard nonwoven cloth
Preparation method, technological process is short, defect rate is low, production efficiency is high.
CN201620783584.9, which discloses a kind of wet tissue use, can break up degradable wood pulp composite water-spurt non-woven cloth, including
Wood pulp composite water-spurt non-woven cloth body, wood pulp composite water-spurt non-woven cloth body are made up of two parts, respectively fiber web layer
With log pulp layer；Fiber web layer is made by viscose fiber and polyester fiber through compound combing；Positioned at fiber web layer
The log pulp layer of top and fiber web layer are mutually compound, then wood pulp composite water-spurt non-woven cloth sheet is made by spun lacing reinforcement process
Body.
The utility model is starched using pure natural chopped fiber and log, compound by spun lacing method, by rationally controlling both
Ratio and special process control both decentralization, then the debugging by technological parameter, make it have enough wet breaks
There is good breaking up property and biological degradability again while tensile strength.The natural pro-skin of the utility model, there is superelevation
Hygroscopicity, it disclosure satisfy that the requirement of wet tissue product requirement, particularly lavatory wet tissue.
CN201620078083.0, which is disclosed, degradable made of a kind of natural plant fiber breaks up non-woven fabrics.Nonwoven
Layer of cloth is disorderly mutually tangled by wood-fibred and cotton fiber and formed.Described wood-fibred can use true qualities wood-fibred, described
Cotton fiber can use true qualities cotton fiber, and nonwoven layer whiteness may be provided at 30~70%.Described wood-fibred and
One of which or two kinds can also be used white fiber in cotton fiber.Described wood-fibred and the length of cotton fiber can be set
Put in 3~12mm.
At present, the material of main part that can break up spun lacing material both at home and abroad is mostly needlebush pulp, while can break up material pair
The performance indications of pulp are higher than the average length of papermaking, particularly fiber.China's Forest Resources and timber resources are in short supply
Scale is hardly formed, while elevation and latitude and the timber growth cycle for slurrying are below the states such as Canada, it is difficult to provide
Available high-quality needlebush pulp.China has higher interdependency always to import pulp, and domestic wood pulp is only capable of meeting
8% or so of domestic demand, huge insufficiency of supply-demand rely primarily on import and filled up.
In addition, it has now been found that, spun lacing material is broken up after being made and can break up wet tissue based on wood pulps, meeting
There is the situation that dispersive property declines, that is to say, that the Essence added in wet tissue production can produce to the dispersive property of wood pulps
Adverse effect.
Therefore, the problem of being existed according to prior art can break up performance not by wet tissue Essence shadow, it is necessary to research and develop a kind of its
Ring, and raw material sources are wide, cost is low, environment-friendly break up spun lacing material.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of bamboo pulp can break up spun lacing material and its making side
Method,.The bamboo pulp of the present invention can break up spun lacing material selection certain material and by special wet method spunlace non-woven technique system
, the problem of can not only solving because wet tissue Essence acts on during post-processing, and cause dispersive property to decline, Er Qieqi
Raw material is easy to get, production cost is low.
The present invention concrete technical scheme be：A kind of bamboo pulp can break up spun lacing material, including mass percent be 10~
80% bamboo pulp, 0~60% wood pulps, 10~60% man-made cellulose fibers are through the Hydroentangled technique system of wet-laying
Into the grammes per square metre that the bamboo pulp can break up spun lacing material is 40~80g/m2。
Preferably, beating degree of the bamboo pulp after mill be in 12-14 ° of SR, and in pulp fibre length be 1.8~
2.4mm, fineness are 11~16 μm, and fibre section is oval hollow.
The present invention is from bamboo pulp as one of raw material, and China is the country that bamboo resource is most abundant in the world, bamboo
Species, bamboo grove area and bamboo resource accumulation occupy first place in the world, and are known as the title of " bamboo kingdom ".It can be rushed using bamboo pulp conduct
The raw material of material is dissipated, the bamboo of China's abundant can be made full use of to produce resource, sufficient raw, economy, domestic bamboo industry can be driven
Development, there is certain social effect.
The present invention production in fiber into net mode be wet-laying, it is therefore desirable to which fiber can be uniformly distributed in water, no
Easily wadding is poly- and agglomerating.Because the ratio between the length of fiber, line density are bigger, fiber is more difficult to disperse in water, more easy to be agglomerating.And fiber
Distribution of lengths it is narrower, be more easy to be controlled fiber under similarity condition, fiber is easier to be scattered.Therefore, the present invention selects
Bamboo pulp in fibre length between 1.8~2.4mm, fineness is at 11~16 μm, and material pulp beating degree is at 12~14 °
SR, and fibre section is oval hollow.And now widely used needlebush pulp 2.56~4.08mm of fibre length, fineness exist
40.9~54.9 μm, 8~11 ° of SR of beating degree, fibre section is irregular polygon.Compared with needlebush pulp, due to bamboo pulp
Fiber has the characteristics of fibre length is short, fineness is thin, section is ellipse hollow structure in the dregs of rice, can reduce fiber and be sent out in water
Raw wadding gathers and pockets of situation, and entanglement degree is relative low during spun lacing, so as to improve wet laid web quality, so to product
The stabilization of dispersive property is advantageously.
Preferably, the bamboo pulp is the true qualities bamboo pulp without bleaching working process.
From true qualities bamboo pulp, without bleaching, bamboo fibre natural gray is presented in product appearance, has natural, green
Color, it is environmentally friendly the characteristics of, meet the market demand, technique can also be simplified in addition, reduce cost.
Preferably, the man-made cellulose fibers are viscose rayon, bamboo fibre or tencel fiber.
Preferably, the fibre length of the man-made cellulose fibers is 5~12mm, fibre fineness is 0.1~
3.3dtex。
Preferably, the mass area ratio that the bamboo pulp can break up spun lacing material is 40~80g/m2。
The invention also discloses the preparation method that above-mentioned bamboo pulp can break up spun lacing material, comprise the following steps：
1) bamboo pulp, wood pulps are together added into the pulping pond with baffle by proportioning, turned by eccentric in pulping pond
The rotation of son makes bamboo pulp and wood pulps that size degradation occur, and then by multiple tracks mill process, makes the abundant size degradation of pulp, concentration is made
For 1~5% pulp mixed liquor.
2) man-made cellulose fibers are sent into dump chest respectively by proportioning, fiber is completed in dump chest and is disperseed, is made dense
The fiber slurry for 0.1~1% is spent, then is mixed and made into the fiber that concentration is 0.1~0.5% in proportion with pulp mixed liquor and mixes
Slurries；Fiber mixture slurry is filtered, the coma in the impurity and removing slurries in slurries is filtered out, ensures slurries
In fiber be in single fiber state.
3) fiber mixture slurry after filtering is sent into titled net formation machine, by the pre- water jet on titled net formation machine,
Preconsolidation is carried out under 20bar~40bar spun lacing pressure, forms fibre web；Then fibre web is dehydrated again, controls fibre web moisture content
50%~65%.
The present invention carries out second dehydration after inclined wire pierces in advance before being transferred to spun lacing, ensure in fibre web at moisture
Between 50%-65%, strength needed for transfer is provided for fibre web, meets the production needs of low grammes per square metre product.
It is the transfer of low grammes per square metre fibre web for convenience for " second dehydration ", not effective for web of staple fibers
In the case of fibre matting, the strength of web mostlys come from the hydrogen bond action between cellulose fibre, and the present inventor is by grinding
Study carefully discovery, when close to 50%, the effect of hydrogen bond can steeply rise the moisture content of web of staple fibers.
The aqueous of web is higher than 70% after pre- thorn, therefore, it is necessary to makes moisture in fibre web after second dehydration
Content is between 50%~65%, can effectively be lifted the strength of fibre web, is easy to wet laid web smoothly to be shifted from forming machine
Onto spun-laced machine, following process is carried out.
4) fibre web after dehydration is introduced into spun lacing system, turned by the spun lacing of Surface coating nickel-plated steel silk screen or polyester webs
On drum or spun lacing plain net, using 30bar~80bar spun lacing pressure to the positive and negative multiple tracks spun lacing of fibre web；Spun lacing pressure is by low pressure, height
Pressure, low pressure are arranged in order, and fibre web is fully consolidated, and reduce the loss of pulp during spun lacing and prevent that artificial cellulose is fine
Tie up sticky net；Fibre web after spun lacing is reinforced pass through aspirator, removes moisture unnecessary in material, then is made an uproar system and online by baking
Bamboo pulp is made after detection can break up spun lacing material.
It is short due to bamboo pulp fiber finer, in spun lacing process, due to the percussion of High-Pressure Water, easily cause
The loss of bamboo pulp simultaneously makes the microfibre of loss stick on steel wire.Therefore, the present invention carries out nickel plating arrangement to steel wire,
The adhesion of microfibre on steel wire can be effectively reduced, lifts dehydrating effect.In normal conditions, using the steel wire of 90 mesh
The microfibre turnover rate such as net, bamboo pulp is in 20-30%.Density by improving steel wire can improve the stream of microfibre
Lose, it is preferred to use steel wires more than 100 mesh.
As another preferred scheme：100~110 mesh polyester of diameter 0.15mm monofilament polyesters braiding are used in spun lacing process
The composite spunlaced rotary drum of net and honeycomb structure rotary drum sleeve body composition, while resin finishing is carried out to polyester webs, reduce fine fibre
The adhesion to polyester webs is tieed up, reduces the loss of pulp during spun lacing.Spun lacing suction can be influenceed because the mesh number of polyester webs is too high
The dewatering of roller, and then influence the cloth cover effect of spunlace web；Polyester mesh number is too low to be made to flow during fibre web spun lacing
Lose situation excessive, while that sticky net occurs.Using the combination of polyester webs+honeycomb structure rotary drum sleeve body can make polyester webs with
The contact area of rotary drum sleeve is minimum, and then lifts its dewatering.
Preferably, in step 1), the pulping pond includes pond body, eccentric rotor and multiple baffles；Described eccentric turn
Son is fixed on the bottom of the pond body and eccentric setting, and multiple baffles equidistantly located at pond body bottom and are radially arranged.
In the prior art, due to generally using wood pulps as primary raw material, therefore using conventional pulping pond.But
It is that the present invention is used as primary raw material from bamboo pulp, compared with wood pulps, fibre length in bamboo pulp is short, fineness is thin, produces
Middle bamboo pulp size degradation more more difficult than wood pulps.Therefore, if still using conventional pulping pond, just can not solve above-mentioned technology
Problem.Therefore, the present inventor passes through numerous studies, install multiple baffles additional in pulping pond and design rotor eccentricity, with solution
Certainly there is laminar flow in slurries during size degradation, the problem of influenceing pulping quality, improve pulping efficiency.Its concrete principle is：
It is using the effect of baffle：The laminar flow being likely to occur is destroyed, increases the rubbing action between fiber and fiber；Slurry
Gear revolution, makes slurry be run in most short distance on rotor；Slurry is formed eddy circulating, increase slurry and rotor
Fierce frequency of exposure, improve size degradation efficiency.
Using the design of eccentric rotor, i.e., by the center deviation circle pulping pond center of rotor, using the work of eccentric rotor
With being：Pulp is reached optimal immersion effect by changing eddy flow center, so that pulp contacts rapider with rotor, connect
Tactile frequency is higher, so as to more improve pulping efficiency, solves the technical problem that bamboo pulp is not easy size degradation.
Preferably, in step 1), the multiple tracks mill process is specially：Using three mill techniques, slurries first pass through
Thick mill together, then by twice smart mill in parallel.
Typically slurries are processed using one of mill in the production of existing wet method spun laced fabric, however, special due to bamboo pulp
Property, the abundant size degradation of bamboo pulp can not be made using conventional one of mill technique, therefore, the present invention is set using multistage disk grinding process
Meter, can solve the problem that size degradation technical problem of low quality when prior art uses one of mill.
The technological design of multiple tracks mill：Mill specification is different, and mill can be divided into three regions according to the process of defibrination, respectively
For fracture area, corase grind area, fine grinding area.The ratio of fracture area is lower compared to other regions in the mill of smart mill.Gap is different,
The quiet disk of smart mill and Moving plate gap are smaller.Effect makes the abundant size degradation of pulp improve the quality starched.
Preferably, in step 4), using the technique of low-pressure multistage spun lacing in spun lacing process, using 5~7 water jets
Process configuration：Wherein, 1# water jets use 0.10mm apertures water needle plate, 30~35bar hydraulic pressure；2-4# water jets use
0.12mm apertures water needle plate, 45~80bar hydraulic pressure, positive and negative spun lacing is carried out respectively；5# water jets use 0.10mm apertures liquid drugs injection
Plate, 40~50bar hydraulic pressure.Or 1# water jets use 0.10mm apertures water needle plate, 30~35bar hydraulic pressure；2-6# water jets make
With 0.12mm apertures water needle plate, 40~70bar hydraulic pressure, positive and negative spun lacing is carried out respectively；7# water jets use 0.10mm apertures water
Needle plate, 35~45bar hydraulic pressure.(specification using this hydraulic pressure and water needle plate is to ensure that fibre web receives necessary liquid drugs injection energy
It will not be lost in while amount excessively, hydraulic pressure is too low, does not reach the entanglement effect of design, makes the insufficient using strength of product；Hydraulic pressure
It is too high, the higher loss to causing fiber fines, it is unfavorable for the saving of cost and the guarantee of product cloth surface uniformity).
It is compared with the prior art, the beneficial effects of the invention are as follows：
(1) solve the problems, such as to break up dispersiveness after wet tissue is made in material to decline
The present invention can effectively solve to break up spun lacing material dispersiveness after the immersion of wet tissue Essence based on wood pulps
The problem of loss of energy, meet that municipal wastewater processing pair can break up the requirement of material.By product of the present invention with being main using wood pulps
" can commonly break up spun lacing material " of composition soaks wet tissue Essence 30 days under similarity condition, then according to INDA/EDANA
《Disposable non-woven cloth and product can break up Performance Evaluation policy paper》(3rd Edition Guidelines, INDA/EDANA
FG502), carry out rocking case decomposition test, test result indicates that：Rock case and rock after 20min that " bamboo pulp can break up spun lacing material
Material " 12.5mm screen clothes percent of pass be 90.3%, it is higher by 42.4% than " can commonly break up spun lacing material " and more than.
(2) the true qualities bamboo pulp without bleaching, true qualities wood pulps are used as primary raw material, bamboo is presented in product appearance
Fiber natural gray, there is the characteristics of natural, green, environmentally friendly, meet the market demand.
(3) because true qualities bamboo pulp, true qualities wood pulps cost of material are lower than the wood pulps price by bleaching, therefore, this
Application " true qualities wood pulps can break up spun lacing material " has cost advantage compared with it commonly can break up spun lacing material, can improve product
The market competitiveness.
(4) bamboo resource of China's abundant is made full use of, reduces the dependence to import needlebush pulp.
Bamboo pulp can break up spun lacing material using 100% degradable cellulose fibre composition, possess environment friendly, together
When clean production technology largely save the biocidal property of bamboo and primary color and luster, be the differentiation exploitation that can break up wet tissue
Provide raw material basis.
Brief description of the drawings
Fig. 1 is a kind of top view in pulping pond of the present invention；
Fig. 2 is a kind of front view in pulping pond of the present invention.
Reference is：Pond body 1, eccentric rotor 2, baffle 3.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of bamboo pulp can break up spun lacing material, mass area ratio 55g/m2, include the raw material system of following mass percent
：(beating degree after the mill fibre length in 13 ° of SR, pulp is 1.8~2.4mm to 60% true qualities bamboo pulp, and fineness is
11~16 μm, fibre section is oval hollow), 20% wood pulps, 20% man-made cellulose fibers (length is 5~12mm,
Fibre fineness is 0.1~3.3dtex viscose rayon).
Described bamboo pulp can break up the preparation method of spun lacing material, comprise the following steps：
1) bamboo pulp, wood pulps are together added into the pulping pond with baffle by proportioning, turned by eccentric in pulping pond
The rotation of son makes bamboo pulp and wood pulps that size degradation occur, and then by multiple tracks mill process, (multiple tracks mill process is specially：Using
Three mill techniques, slurries first pass through thick mill together, then by twice smart mill in parallel), make the abundant size degradation of pulp, be made
Concentration is 3% pulp mixed liquor.
2) man-made cellulose fibers are sent into dump chest respectively by proportioning, fiber is completed in dump chest and is disperseed, is made dense
The fiber slurry for 0.5% is spent, then the fiber mixture slurry that concentration is 0.3% is mixed and made into proportion with pulp mixed liquor；It is right
Fiber mixture slurry is filtered, and is filtered out the coma in the impurity and removing slurries in slurries, is ensured the fibre in slurries
Dimension is in single fiber state.
3) fiber mixture slurry after filtering is sent into titled net formation machine, by the pre- water jet on titled net formation machine,
Preconsolidation is carried out under 30bar spun lacing pressure, forms fibre web；Then fibre web is dehydrated again, control fibre web moisture content is 58%.
4) fibre web after dehydration is introduced into spun lacing system, turned by the spun lacing of Surface coating nickel-plated steel silk screen (100 mesh)
On drum, using the technique of low-pressure multistage spun lacing：Using the Process configuration of 7 water jets；Wherein, 1# water jets use 0.10mm
Aperture water needle plate, 33bar hydraulic pressure；2-6# water jets use 0.12mm apertures water needle plate, 55bar hydraulic pressure, carry out positive and negative respectively
Spun lacing；7# water jets use 0.10mm apertures water needle plate, 40bar hydraulic pressure.Fibre web after spun lacing is reinforced passes through aspirator, removes
Unnecessary moisture in material, then bamboo pulp is made after system and on-line checking are made an uproar in baking can break up spun lacing material.
Wherein, as shown in Figure 1 and Figure 2, the pulping pond includes pond body 1, eccentric rotor 2 and 3 baffles 3；The bias
Rotor is fixed on the bottom of the pond body and eccentric setting, and 3 baffles equidistantly located at pond body bottom and are radially arranged.
Embodiment 2
A kind of bamboo pulp can break up spun lacing material, mass area ratio 40g/m2, include the raw material system of following mass percent
：(beating degree after the mill fibre length in 12 ° of SR, pulp is 1.8~2.4mm to 10% true qualities bamboo pulp, and fineness is
11~16 μm, fibre section is oval hollow), 60% wood pulps, 30% man-made cellulose fibers (length is 5~12mm,
Fibre fineness is 0.1~3.3dtex bamboo fibre).
Described bamboo pulp can break up the preparation method of spun lacing material, comprise the following steps：
1) bamboo pulp, wood pulps are together added into the pulping pond with baffle by proportioning, turned by eccentric in pulping pond
The rotation of son makes bamboo pulp and wood pulps that size degradation occur, and then by multiple tracks mill process, (multiple tracks mill process is specially：Using
Three mill techniques, slurries first pass through thick mill together, then by twice smart mill in parallel), make the abundant size degradation of pulp, be made
Concentration is 1% pulp mixed liquor.
2) man-made cellulose fibers are sent into dump chest respectively by proportioning, fiber is completed in dump chest and is disperseed, is made dense
The fiber slurry for 0.1% is spent, then the fiber mixture slurry that concentration is 0.1% is mixed and made into proportion with pulp mixed liquor；It is right
Fiber mixture slurry is filtered, and is filtered out the coma in the impurity and removing slurries in slurries, is ensured the fibre in slurries
Dimension is in single fiber state.
3) fiber mixture slurry after filtering is sent into titled net formation machine, by the pre- water jet on titled net formation machine,
Preconsolidation is carried out under 20bar spun lacing pressure, forms fibre web；Then fibre web is dehydrated again, control fibre web moisture content is 65%.
4) fibre web after dehydration is introduced into spun lacing system, turned by the spun lacing of Surface coating nickel-plated steel silk screen (120 mesh)
On drum, using the technique of low-pressure multistage spun lacing：Using the Process configuration of 7 water jets；Wherein, 1# water jets use 0.10mm
Aperture water needle plate, 30bar hydraulic pressure；2-4# water jets use 0.12mm apertures water needle plate, 45bar hydraulic pressure, carry out positive and negative respectively
Spun lacing；5# water jets use 0.10mm apertures water needle plate, 40bar hydraulic pressure.Fibre web after spun lacing is reinforced passes through aspirator, removes
Unnecessary moisture in material, then bamboo pulp is made after system and on-line checking are made an uproar in baking can break up spun lacing material.
Embodiment 3
A kind of bamboo pulp can break up spun lacing material, mass area ratio 80g/m2, include the raw material system of following mass percent
：(beating degree after the mill fibre length in 14 ° of SR, pulp is 1.8~2.4mm to 80% true qualities bamboo pulp, and fineness is
11~16 μm, fibre section is oval hollow), (length is 5~12mm, fibre fineness 0.1 for 20% man-made cellulose fibers
~3.3dtex tencel fiber).
Described bamboo pulp can break up the preparation method of spun lacing material, comprise the following steps：
1) bamboo pulp, wood pulps are together added into the pulping pond with baffle by proportioning, turned by eccentric in pulping pond
The rotation of son makes bamboo pulp and wood pulps that size degradation occur, and then by multiple tracks mill process, (multiple tracks mill process is specially：Using
Three mill techniques, slurries first pass through thick mill together, then by twice smart mill in parallel), make the abundant size degradation of pulp, be made
Concentration is 5% pulp mixed liquor.
2) man-made cellulose fibers are sent into dump chest respectively by proportioning, fiber is completed in dump chest and is disperseed, is made dense
The fiber slurry for 1% is spent, then the fiber mixture slurry that concentration is 0.5% is mixed and made into proportion with pulp mixed liquor；To fibre
Dimension mixed serum is filtered, and is filtered out the coma in the impurity and removing slurries in slurries, is ensured the fiber in slurries
In single fiber state.
3) fiber mixture slurry after filtering is sent into titled net formation machine, by the pre- water jet on titled net formation machine,
Preconsolidation is carried out under 40bar spun lacing pressure, forms fibre web；Then fibre web is dehydrated again, control fibre web moisture content exists
50%%.
4) fibre web after dehydration is introduced into spun lacing system, turned by the spun lacing of Surface coating nickel-plated steel silk screen (200 mesh)
On drum, using the technique of low-pressure multistage spun lacing：Using the Process configuration of 5 water jets；Wherein, 1# water jets use 0.10mm
Aperture water needle plate, 33bar hydraulic pressure；2-4# water jets use 0.12mm apertures water needle plate, 65bar hydraulic pressure, carry out positive and negative respectively
Spun lacing；5# water jets use 0.10mm apertures water needle plate, 45bar hydraulic pressure.Fibre web after spun lacing is reinforced passes through aspirator, removes
Unnecessary moisture in material, then bamboo pulp is made after system and on-line checking are made an uproar in baking can break up spun lacing material.
Embodiment 4
A kind of bamboo pulp can break up spun lacing material, mass area ratio 50g/m2, include the raw material system of following mass percent
：(beating degree fibre length in 13 ° of SR, pulp is 1.8~2.4mm to 60% true qualities bamboo pulp after mill, fineness 11
~16 μm, fibre section is oval hollow), 5% wood pulps, (length be 5~12mm to 35% man-made cellulose fibers, fibre
Tie up the viscose rayon that fineness is 0.1~3.3dtex).
Described bamboo pulp can break up the preparation method of spun lacing material, comprise the following steps：
1) bamboo pulp, wood pulps are together added into the pulping pond with baffle by proportioning, turned by eccentric in pulping pond
The rotation of son makes bamboo pulp and wood pulps that size degradation occur, and then by multiple tracks mill process, (multiple tracks mill process is specially：Using
Three mill techniques, slurries first pass through thick mill together, then by twice smart mill in parallel), make the abundant size degradation of pulp, be made
Concentration is 4% pulp mixed liquor.
2) man-made cellulose fibers are sent into dump chest respectively by proportioning, fiber is completed in dump chest and is disperseed, is made dense
The fiber slurry for 0.6% is spent, then the fiber mixture slurry that concentration is 0.4% is mixed and made into proportion with pulp mixed liquor；It is right
Fiber mixture slurry is filtered, and is filtered out the coma in the impurity and removing slurries in slurries, is ensured the fibre in slurries
Dimension is in single fiber state.
3) fiber mixture slurry after filtering is sent into titled net formation machine, by the pre- water jet on titled net formation machine,
Preconsolidation is carried out under 25bar spun lacing pressure, forms fibre web；Then fibre web is dehydrated again, control fibre web moisture content is 55%.
4) fibre web after dehydration is introduced into spun lacing system, (diameter is being used by the spun lacing rotary drum of Surface coating polyester webs
The composite spunlaced rotary drum of 110 mesh polyester webs of 0.15mm monofilament polyesters braiding and honeycomb structure rotary drum sleeve body composition, at the same it is right
Polyester webs carry out resin finishing) on, using the technique of low-pressure multistage spun lacing：Using the Process configuration of 5 water jets；Wherein,
1# water jets use 0.10mm apertures water needle plate, 35bar hydraulic pressure；2-4# water jets use 0.12mm apertures water needle plate, 80bar water
Pressure, positive and negative spun lacing is carried out respectively；5# water jets use 0.10mm apertures water needle plate, 50bar hydraulic pressure.Fibre web after spun lacing reinforcing
By aspirator, moisture unnecessary in material is removed, then bamboo pulp is made after system and on-line checking are made an uproar in baking to break up
Spun lacing material.
The bamboo pulp of the present invention can break up spun lacing material and can be broken up after Essence soaks 30 days with can commonly break up material
Performance comparison test is as follows：
Note：Screen cloth percent of pass is weight percentage
Test result is shown：Under the same conditions, the screen cloth percent of pass that bamboo pulp can break up material for several times is 90.3%.It is and general
The logical screen cloth percent of pass that can break up material is only 63.4%.
Raw materials used in the present invention, equipment, it is the conventional raw material, equipment of this area unless otherwise noted；In the present invention
Method therefor, it is the conventional method of this area unless otherwise noted.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent transformation that technical spirit is made to above example, still fall within the technology of the present invention side
The protection domain of case.
Claims (9)
1. a kind of bamboo pulp can break up spun lacing material, it is characterised in that including mass percent be 10~80% bamboo pulp, 0~
60% wood pulps, 10~60% man-made cellulose fibers are made through the Hydroentangled technique of wet-laying, and the bamboo pulp can rush
The grammes per square metre of aproll thorn material is 40~80 g/ ㎡.
2. a kind of bamboo pulp as claimed in claim 1 can break up spun lacing material, it is characterised in that the bamboo pulp is after mill
Beating degree in 12-14 ° of SR, and fibre length is 1.8~2.4mm in pulp, and fineness is 11~16 μm, and fibre section is ellipse
It is hollow.
3. a kind of bamboo pulp as claimed in claim 2 can break up spun lacing material, it is characterised in that the bamboo pulp be without
Bleach the true qualities bamboo pulp of working process.
4. a kind of bamboo pulp as claimed in claim 1 can break up spun lacing material, it is characterised in that the man-made cellulose fibers
For viscose rayon, bamboo fibre or tencel fiber.
5. a kind of bamboo pulp as claimed in claim 3 can break up spun lacing material, it is characterised in that the man-made cellulose fibers
Fibre length be 5~12mm, fibre fineness is 0.1~3.3dtex.
6. a kind of bamboo pulp as described in one of claim 1-5 can break up the preparation method of spun lacing material, it is characterised in that bag
Include following steps：
1）Bamboo pulp, wood pulps are together added into the pulping pond with baffle by proportioning, turned by eccentric in pulping pond
The rotation of son makes bamboo pulp and wood pulps that size degradation occur, and then by multiple tracks mill process, makes the abundant size degradation of pulp, concentration is made
For 1~5% pulp mixed liquor；
2）Man-made cellulose fibers are sent into dump chest respectively by proportioning, fiber is completed in dump chest and is disperseed, concentration, which is made, is
0.1~1% fiber slurry, then the fiber mixture slurry that concentration is 0.1~0.5% is mixed and made into proportion with pulp mixed liquor；
Fiber mixture slurry is filtered, the coma in the impurity and removing slurries in slurries is filtered out, ensures in slurries
Fiber is in single fiber state；
3）Fiber mixture slurry after filtering is sent into titled net formation machine, by the pre- thorn water jet on titled net formation machine,
Preconsolidation is carried out under 20bar~40bar spun lacing pressure, forms fibre web；Then fibre web is dehydrated again, controls fibre web moisture content
50%~65%；
4）Fibre web after dehydration is introduced into spun lacing system, in the spun lacing rotary drum by Surface coating nickel-plated steel silk screen or polyester webs or
On spun lacing plain net, using 30bar~80bar spun lacing pressure to the positive and negative multiple tracks spun lacing of fibre web；Spun lacing pressure by low pressure, high pressure,
Being arranged in order for low pressure, makes fibre web fully consolidate, and reduces the loss of pulp during spun lacing and prevent man-made cellulose fibers
Sticky net；Fibre web after spun lacing is reinforced pass through aspirator, removes moisture unnecessary in material, then makes an uproar and system and examine online by baking
Bamboo pulp is made after survey can break up spun lacing material.
7. bamboo pulp as claimed in claim 6 can break up the preparation method of spun lacing material, it is characterised in that step 1）In, institute
Stating pulping pond includes pond body, eccentric rotor and multiple baffles；The eccentric rotor is fixed on the bottom of the pond body and bias
Set, multiple baffles equidistantly located at pond body bottom and are radially arranged.
8. bamboo pulp as claimed in claim 6 can break up the preparation method of spun lacing material, it is characterised in that step 1）In, institute
Stating multiple tracks mill process is specially：Using three mill techniques, slurries first pass through thick mill together, then by twice essence in parallel
Mill.
9. bamboo pulp as claimed in claim 6 can break up the preparation method of spun lacing material, it is characterised in that step 4）In, water
Pierce in process and use the technique of low-pressure multistage spun lacing, using the Process configuration of 5 ~ 7 water jets：Wherein, 1# water jets use
0.10mm apertures water needle plate, 30 ~ 35bar hydraulic pressure；2-4# water jets use 0.12mm apertures water needle plate, 45 ~ 80bar hydraulic pressure, divide
Carry out not positive and negative spun lacing；5 # water jets use 0.10mm apertures water needle plate, 40 ~ 50bar hydraulic pressure；Or：1# water jets use
0.10mm apertures water needle plate, 30 ~ 35bar hydraulic pressure；2-6# water jets use 0.12mm apertures water needle plate, 40 ~ 70bar hydraulic pressure, divide
Carry out not positive and negative spun lacing；7 # water jets use 0.10mm apertures water needle plate, 35 ~ 45bar hydraulic pressure.
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| CN108166156A (en) * | 2017-12-23 | 2018-06-15 | 珠海美茵护理用品有限公司 | One kind is degradable, easily breaks up vegetable fiber environmental protection material |
| CN108532123A (en) * | 2018-04-04 | 2018-09-14 | 杭州诺邦无纺股份有限公司 | A kind of spun lacing non-woven material and preparation method thereof containing natural dry petal |
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| CN109252286A (en) * | 2018-11-13 | 2019-01-22 | 浙江宝仁无纺制品有限公司 | A kind of production technology for breaking up lavatory non-woven fabrics |
| CN109537354A (en) * | 2018-11-28 | 2019-03-29 | 山东昌诺新材料科技有限公司 | A kind of bamboo fibre and wood pulp spun lacing composite cleaning cloth and preparation method thereof |
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| CN114134638A (en) * | 2021-12-17 | 2022-03-04 | 欣柔科技安陆有限公司 | Preparation method of flushable embossed spunlace non-woven fabric |
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| CN109629110A (en) * | 2018-12-10 | 2019-04-16 | 杭州诺邦无纺股份有限公司 | A kind of preparation method of wood pulp mixing spunlace non-woven material |
| CN111394889A (en) * | 2019-12-26 | 2020-07-10 | 杭州诺邦无纺股份有限公司 | Degradable spunlace nonwoven material for nursing and preparation method |
| CN111394889B (en) * | 2019-12-26 | 2021-10-15 | 杭州诺邦无纺股份有限公司 | Degradable spunlace nonwoven material for nursing and preparation method |
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