CN108385271A - One kind can break up non-woven material and preparation method thereof - Google Patents
One kind can break up non-woven material and preparation method thereof Download PDFInfo
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- CN108385271A CN108385271A CN201810116131.4A CN201810116131A CN108385271A CN 108385271 A CN108385271 A CN 108385271A CN 201810116131 A CN201810116131 A CN 201810116131A CN 108385271 A CN108385271 A CN 108385271A
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- woven material
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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
- D04H1/425—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
- D04H1/42—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
- D04H1/42—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
- D04H1/40—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
- D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- 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
- D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present invention, which proposes one kind, can break up non-woven material and preparation method thereof, non-woven material can be broken up to be prepared by the wood pulp cellulose 50 70, viscose rayon 30 50, adhesive 0.05 0.15 of parts by weight, preparation method includes dispersion, mashing, lapping, dehydration, drying and other steps.It is provided by the present invention break up non-woven material with intensity is higher, softness better performances, moisture pick-up properties are excellent, can under the action of Shui Chong rapid dispersion and can the performances such as 100% biodegradation, breaking up property can be met and required and actual operation requirements.
Description
Technical field
The invention belongs to non-woven material technical fields, and in particular to one kind can break up non-woven material and its preparation side
Method.
Background technology
Non-woven material is answered because of its unique structure, changeable technique and the incomparable characteristic of other textiles
In the every field of national economy, the application in health product is especially prominent, but it is discarded after processing disposition be always
Various circles of society's focus of attention.The processing such as traditional burning, landfill disposal options can aggravate The Surroundings in Cities pollution, therefore, industry
The interior handling problems for wishing to solve the Disposable, nonwoven amenities obsolete material such as cloth for cleaning by drainage system.
But North America non-woven cloth association（INDA）One investigate the sewer that pours for showing to find on waste water strainer
It in waste, is not designed there are about 90% or sale is can break up type product, wherein 47% is that can not break up paper handkerchief（Tissue is defended
Raw paper/napkin paper etc.）, 18% is can not break up baby wipes, and 13% is that can not break up feminine hygiene articles（Tapon, protection pad,
Product packaging etc.）, 14% is that can not break up household wet tissue（Surface wet tissue, makeup and medicinal wet tissue etc.）, it is confirmed as to break up
The article of type wet tissue class only accounts for 8% that strainer collects waste, and such article mainly is accumulated since closestool blocks
's.
Non-woven material can be broken up can detach disintegration at small pieces, under the action of flow under the shearing force of flow
Can be smoothly by closestool, drainage pipeline and sewage transport system, and can fully be dissolved or dispersed in water, it will not
Municipal wastewater transmission and processing system are had an impact.At present in numerous wet tissue types, only 7% wet tissue is by special
Design, will not cause damages to waste water system, and sell as that can break up wet tissue instead of toilet paper.Therefore, degradable to rush
Scattered novel sanitation material will become a new growing point of industry development.
In the prior art, application No. is a kind of Wholly-degradable, main body are disclosed in the patent of " 201520417212.X "
The panty liner that can be broken up, the panty liner have degradability and breaking up property using the fiber of Wholly-degradable as raw material, but
The technology and material that the invention is provided are only applicable to shield cushion class product, are not suitable for manufacturing larger disposable of other usage amounts
Amenities（Such as wet tissue）.
Application No. is a kind of preparation method of moisture paper tissue material is disclosed in the patent of " 200910053210.6 ", with wood pulp fibre
Peacekeeping viscose rayon is raw material, and technological process is "+three road spun lacing reinforcing of crushing+dry method of paper-making+drying ", prepared wet tissue material
Material can disperse in water.But the technology has the following problems：（1）The existing dry process of preparation process, and have wet processing, technique
It is complex, it is inconvenient；（2）A large amount of waste water is will produce in three spun lacing reinforcing process, and energy consumption is higher, technique does not save
Energy, environmental protection；（3）Since the invention time is more long, prepared material has been unable to meet existing standard of breaking up and requires.For another example,
Application No. is disclosing one kind in the patent of " 201410530722.8 " moisture paper tissue material and its production method can be broken up, with viscose glue fibre
Dimension, wood pulp cellulose and ES fibers are raw material, are prepared using wet-laying, hot wind, hot-rolling method, prepared material has
Characteristic that is degradable, can breaking up.There is also problems with for the technology：（1）ES fiber difficult for biological degradation, and prepared material is not
It tests according to the existing standard of breaking up, therefore the material only has characteristic that is degradable, can breaking up, cannot still meet existing
Can break up in standard about can break up, the requirement of degradability；（2）ES fiber melts are higher, need setting single in preparation process
Only heating melting steps increase the complexity of technique, and energy consumption is higher.
Invention content
The present invention propose a kind of intensity is high, flexibility is good, moisture pick-up properties is excellent, it is discarded after can be completely dispersed in water and
Non-woven material is broken up in degradation.
Realize the technical scheme is that：One kind can break up non-woven material, be made of the raw material of parts by weight：Wood pulp is fine
Tie up 50-70, viscose rayon 30-50, adhesive 0.05-0.15.
Described adhesive is polyethylene glycol, and the molecular weight of polyethylene glycol is 4000-10000.
The wood pulp cellulose length is 2-10mm；Viscose rayon length is 8-20mm.
The preparation method for breaking up non-woven material, steps are as follows：
（1）Dispersion：Wood pulp cellulose and viscose rayon are added sequentially to disperse in dispersion liquid, form uniform fiber-water
Dispersion liquid；
（2）Mashing：By step（1）Obtained fiber-aqueous dispersions are added in beater and are beaten, and obtain homogeneous slurry；
（3）Lapping：By step（2）Homogeneous slurry be uniformly layered on lace curtaining, form wet fibre web, and sprayed on wet fibre web
A layer of adhesive；
（4）Dehydration：By step（3）In be sprayed with the wet fibre web of adhesive and be dehydrated under vacuum, so that wet fibre web moisture content is dropped
Down to 35% or less；
（5）It is dry：By step（4）Dewatered wet fibre web is dried under vacuum, obtains that non-woven material can be broken up.
The step（1）Middle dispersion liquid is the aqueous sodium polyacrylate of mass fraction 0.2%-0.8%.
The step（4）And step（5）Middle vacuum condition is：Vacuum degree is 0.1Pa-0.1MPa, and temperature is 50-80 DEG C,
Time is 1-8h.
The step（5）Adhesive bonds completely with wet fibre web after middle vacuum drying, and wet fibre web moisture content is less than 15%.
The beneficial effects of the invention are as follows：（1）Wood pulp cellulose and viscose rayon are added directly into dispersion liquid by the present invention, are made
Fibrous raw material is evenly dispersed in the solution, and fiber is avoided to tangle in the solution；（2）The poly- second of adhesive used in the present invention
The fusing point of glycol is relatively low, and the bonding between adhesive and fiber can be realized in the drying process, is melted without individually heating；
（3）Adhesive polyethylene glycol used in the present invention is fully soluble in water, and biodegradable, safe and nontoxic, environmentally friendly.This hair
Bright provided one kind can break up non-woven material with intensity is higher, softness better performances, moisture pick-up properties are excellent, can
Under the action of Shui Chong rapid dispersion and can the performances such as 100% biodegradation, paper handkerchief can broken up, wet tissue can be broken up and can rush
The non-woven hygiene article sectors of breaking up such as feminine hygiene articles are dissipated to have broad application prospects.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of not making the creative labor, belongs to this hair
The range of bright protection.
Embodiment 1
One kind can break up non-woven material, by 0.05 part of system of 30 parts of 70 parts of wood pulp cellulose, viscose rayon, adhesive of parts by weight
It is standby to form.
The wood pulp cellulose length is 8mm；The viscose rayon length is 12mm.
Described adhesive is safe environment protection type adhesive, and the polyethylene glycol that preferred molecular weight of the present invention is 4000-10000 is made
For adhesive, it is fully soluble in water, and biodegradable, it is safe and nontoxic, environmentally friendly.
One kind can break up non-woven material preparation method, include the following steps：
（1）Dispersion：By wood pulp cellulose and viscose rayon be added sequentially in the aqueous sodium polyacrylate of mass fraction 0.5% into
Row dispersion, forms uniform fiber-aqueous dispersions, fibrous raw material, which is added directly into dispersion liquid, can make fiber in the solution
Quickly, evenly dispersed, it avoids bonding.
（2）Mashing.Fiber-aqueous dispersions are added in beater and are beaten, make fibrous raw material and water formed it is uniform,
Stable homogeneous slurry.
（3）Lapping.Homogeneous slurry is uniformly layered on lace curtaining, forms wet fibre web, and spray one layer on wet fibre web
The fusing point of polyglycol solution, used adhesive polyethylene glycol is relatively low, and adhesive can be realized in fibre web drying process
Bonding between fiber is melted without individually heating.
（4）Dehydration.The wet fibre web for being sprayed with adhesive is dehydrated under vacuum, fibre web moisture content is made to be reduced to 35%
Below.
（5）It is dry.Fibre web after vacuum dehydration is dried under vacuum to adhesive and fibre web and is bonded completely, it is dry
Temperature is 70 DEG C, drying time 2h, and fibre web moisture content is reduced within 15% to get to can break up non-woven material.
According to the North Americas INDA/EDANA non-woven cloth association（INDA）/ European non-woven cloth association（EDANA）It makes within 2011
It orders, the requirement of the breaking up property standard of revision in 2013, the non-woven material that breaks up prepared by the implementation case is shaken
Dynamic case decomposes test, has 95% or more material that can meet breaking up property standard by the filter screen of 12.5mm after ten minutes
It is required that.
The physical performance index for breaking up non-woven material prepared by the implementation case is as shown in table 1.
Table 1 can break up the physical property of non-woven material
As can be seen from the table, non-woven material better performances are broken up prepared by the present invention, breaking up property can be met and wanted
Summation actual operation requirements.
Embodiment 2
One kind can break up non-woven material, be prepared by the wood pulp cellulose 60, viscose rayon 40, adhesive 0.1 of parts by weight.
The wood pulp cellulose length is 8mm；The viscose rayon length is 12mm.
Described adhesive is safe environment protection type adhesive, and the polyethylene glycol that preferred molecular weight of the present invention is 4000-10000 is made
For adhesive, it is fully soluble in water, and biodegradable, it is safe and nontoxic, environmentally friendly.
One kind can break up non-woven material preparation method, include the following steps：
（1）Dispersion：By wood pulp cellulose and viscose rayon be added sequentially in the aqueous sodium polyacrylate of mass fraction 0.5% into
Row dispersion, forms uniform fiber-aqueous dispersions；Fibrous raw material, which is added directly into dispersion liquid, can make fiber in the solution
Quickly, evenly dispersed, it avoids bonding
（2）Mashing.Fiber-aqueous dispersions are added in beater and are beaten, so that fibrous raw material and water is formed uniform, stable
Homogeneous slurry.
（3）Lapping.Homogeneous slurry is uniformly layered on lace curtaining, forms wet fibre web, and spray one layer on wet fibre web
Polyethylene glycol.
（4）Dehydration.The wet fibre web for being sprayed with adhesive is dehydrated under vacuum, fibre web moisture content is made to be reduced to 35%
Below.
（5）It is dry.Fibre web after vacuum dehydration is dried under vacuum to adhesive and fibre web and is bonded completely, it is dry
Temperature is 60 DEG C, drying time 4h, and fibre web moisture content is reduced within 15% to get to can break up non-woven material.
According to the North Americas INDA/EDANA non-woven cloth association（INDA）/ European non-woven cloth association（EDANA）It makes within 2011
It orders, the requirement of the breaking up property standard of revision in 2013, the non-woven material that breaks up prepared by the implementation case is shaken
Dynamic case decomposes test, has 95% or more material that can meet breaking up property standard by the filter screen of 12.5mm after ten minutes
It is required that.
The physical performance index for breaking up non-woven material prepared by the implementation case is as shown in table 2.
Table 2 can break up the physical property of non-woven material
As can be seen from the table, non-woven material better performances are broken up prepared by the present invention, breaking up property can be met and wanted
Summation actual operation requirements.
Embodiment 3
One kind can break up non-woven material, by wood pulp cellulose 50, viscose rayon 50, adhesive 0.15 preparation of parts by weight
At.
The wood pulp cellulose length is 8mm；The viscose rayon length is 12mm.
Described adhesive is safe environment protection type adhesive, and the polyethylene glycol that preferred molecular weight of the present invention is 4000 is as bonding
Agent is fully soluble in water, and biodegradable, safe and nontoxic, environmentally friendly.
One kind can break up non-woven material preparation method, include the following steps：
（1）Dispersion：Wood pulp cellulose and viscose rayon are added sequentially to the Sodium Polyacrylate water that dispersion liquid is mass fraction 0.5%
Disperseed in solution, forms uniform fiber-aqueous dispersions.
（2）Mashing.Fiber-aqueous dispersions are added in beater and are beaten, make fibrous raw material and water formed it is uniform,
Stable homogeneous slurry.
（3）Lapping.Homogeneous slurry is uniformly layered on lace curtaining, forms wet fibre web, and spray one layer on wet fibre web
Polyethylene glycol.
（4）Dehydration.The wet fibre web for being sprayed with adhesive is dehydrated under vacuum, fibre web moisture content is made to be reduced to 35%
Below.
（5）It is dry.Fibre web after vacuum dehydration is dried under vacuum to adhesive and fibre web and is bonded completely, vacuum
Degree is 0.05MPa, and drying temperature is 50 DEG C, drying time 8h, and fibre web moisture content is reduced within 15% to get to can rush
Dissipate non-woven material.
According to the North Americas INDA/EDANA non-woven cloth association（INDA）/ European non-woven cloth association（EDANA）It makes within 2011
It orders, the requirement of the breaking up property standard of revision in 2013, the non-woven material that breaks up prepared by the implementation case is shaken
Dynamic case decomposes test, has 95% or more material that can meet breaking up property standard by the filter screen of 12.5mm after ten minutes
It is required that.
The physical performance index for breaking up non-woven material prepared by the implementation case is as shown in table 3.
Table 3 can break up the physical property of non-woven material
As can be seen from the table, non-woven material better performances are broken up prepared by the present invention, breaking up property can be met and wanted
Summation actual operation requirements.
Embodiment 4
One kind can break up non-woven material, it is characterised in that be made of the raw material of parts by weight：Wood pulp cellulose 65, viscose rayon 35,
The molecular weight of polyethylene glycol 0.08, polyethylene glycol is 6000.
Wood pulp cellulose length is 2mm；Viscose rayon length is 8mm.
Preparation process is as follows：
（1）Dispersion：By wood pulp cellulose and viscose rayon be added sequentially in the aqueous sodium polyacrylate of mass fraction 0.2% into
Row dispersion, forms uniform fiber-aqueous dispersions；
（2）Mashing：By step（1）Obtained fiber-aqueous dispersions are added in beater and are beaten, and obtain homogeneous slurry；
（3）Lapping：By step（2）Homogeneous slurry be uniformly layered on lace curtaining, form wet fibre web, and sprayed on wet fibre web
One strata ethylene glycol；
（4）Dehydration：By step（3）In be sprayed with the wet fibre web of adhesive and be dehydrated under vacuum, so that wet fibre web moisture content is dropped
Down to 35% or less；
（5）It is dry：By step（4）Dewatered wet fibre web is dried under vacuum, vacuum degree 0.1Pa, and temperature is 50 DEG C,
Time is 8h, obtains that non-woven material can be broken up.
According to the North Americas INDA/EDANA non-woven cloth association（INDA）/ European non-woven cloth association（EDANA）It makes within 2011
It orders, the requirement of the breaking up property standard of revision in 2013, the non-woven material that breaks up prepared by the implementation case is shaken
Dynamic case decomposes test, has 95% or more material that can meet breaking up property standard by the filter screen of 12.5mm after ten minutes
It is required that.
The physical performance index for breaking up non-woven material prepared by the implementation case is as shown in table 4.
Table 4 can break up the physical property of non-woven material
As can be seen from the table, non-woven material better performances are broken up prepared by the present invention, breaking up property can be met and wanted
Summation actual operation requirements.
Embodiment 5
One kind can break up non-woven material, it is characterised in that be made of the raw material of parts by weight：Wood pulp cellulose 55, viscose rayon 45,
The molecular weight of polyethylene glycol 0.15, polyethylene glycol is 10000.
Wood pulp cellulose length is 10mm；Viscose rayon length is 20mm.
Preparation process is as follows：
（1）Dispersion：By wood pulp cellulose and viscose rayon be added sequentially in the aqueous sodium polyacrylate of mass fraction 0.8% into
Row dispersion, forms uniform fiber-aqueous dispersions；
（2）Mashing：By step（1）Obtained fiber-aqueous dispersions are added in beater and are beaten, and obtain homogeneous slurry；
（3）Lapping：By step（2）Homogeneous slurry be uniformly layered on lace curtaining, form wet fibre web, and sprayed on wet fibre web
One strata ethylene glycol；
（4）Dehydration：By step（3）In be sprayed with the wet fibre web of adhesive and be dehydrated under vacuum, so that wet fibre web moisture content is dropped
Down to 35% or less；
（5）It is dry：By step（4）Dewatered wet fibre web is dried under vacuum, vacuum degree 0.1MPa, temperature 80
DEG C, time 1h obtains that non-woven material can be broken up.
According to the North Americas INDA/EDANA non-woven cloth association（INDA）/ European non-woven cloth association（EDANA）It makes within 2011
It orders, the requirement of the breaking up property standard of revision in 2013, the non-woven material that breaks up prepared by the implementation case is shaken
Dynamic case decomposes test, has 95% or more material that can meet breaking up property standard by the filter screen of 12.5mm after ten minutes
It is required that.
The physical performance index for breaking up non-woven material prepared by the implementation case is as shown in table 5.
Table 5 can break up the physical property of non-woven material
As can be seen from the table, non-woven material better performances are broken up prepared by the present invention, breaking up property can be met and wanted
Summation actual operation requirements.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (7)
1. one kind can break up non-woven material, it is characterised in that be made of the raw material of parts by weight：Wood pulp cellulose 50-70, viscose glue are fine
Tie up 30-50, adhesive 0.05-0.15.
2. according to claim 1 break up non-woven material, it is characterised in that：Described adhesive is polyethylene glycol, is gathered
The molecular weight of ethylene glycol is 4000-10000.
3. according to claim 1 break up non-woven material, it is characterised in that：The wood pulp cellulose length is 2-
10mm；Viscose rayon length is 8-20mm.
4. claim 1-3 any one of them can break up the preparation method of non-woven material, it is characterised in that steps are as follows：
（1）Dispersion：Wood pulp cellulose and viscose rayon are added sequentially to disperse in dispersion liquid, form uniform fiber-water
Dispersion liquid；
（2）Mashing：By step（1）Obtained fiber-aqueous dispersions are added in beater and are beaten, and obtain homogeneous slurry；
（3）Lapping：By step（2）Homogeneous slurry be uniformly layered on lace curtaining, form wet fibre web, and sprayed on wet fibre web
A layer of adhesive；
（4）Dehydration：By step（3）In be sprayed with the wet fibre web of adhesive and be dehydrated under vacuum, so that wet fibre web moisture content is dropped
Down to 35% or less；
（5）It is dry：By step（4）Dewatered wet fibre web is dried under vacuum, obtains that non-woven material can be broken up.
5. the preparation method according to claim 4 for breaking up non-woven material, it is characterised in that：The step（1）In
Dispersion liquid is the aqueous sodium polyacrylate of mass fraction 0.2%-0.8%.
6. the preparation method according to claim 4 for breaking up non-woven material, it is characterised in that：The step（4）With
Step（5）Middle vacuum condition is：Vacuum degree is 0.1Pa-0.1MPa, and temperature is 50-80 DEG C, time 1-8h.
7. the preparation method according to claim 4 for breaking up non-woven material, it is characterised in that：The step（5）In
Adhesive bonds completely with wet fibre web after vacuum drying, and wet fibre web moisture content is less than 15%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810116131.4A CN108385271A (en) | 2018-02-06 | 2018-02-06 | One kind can break up non-woven material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109837655A (en) * | 2019-03-01 | 2019-06-04 | 天津工业大学 | A kind of meyer sedge fiber Wet laid nonwoven material and its preparation method and application |
| CN109837654A (en) * | 2019-03-01 | 2019-06-04 | 天津工业大学 | A kind of meyer sedge fiber spunlace non-woven material and its preparation method and application |
Citations (5)
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| CN109837655A (en) * | 2019-03-01 | 2019-06-04 | 天津工业大学 | A kind of meyer sedge fiber Wet laid nonwoven material and its preparation method and application |
| CN109837654A (en) * | 2019-03-01 | 2019-06-04 | 天津工业大学 | A kind of meyer sedge fiber spunlace non-woven material and its preparation method and application |
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