CN108866811A - A kind of ventilative medical non-woven fabrics of high water absorption height - Google Patents
A kind of ventilative medical non-woven fabrics of high water absorption height Download PDFInfo
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- CN108866811A CN108866811A CN201810815169.0A CN201810815169A CN108866811A CN 108866811 A CN108866811 A CN 108866811A CN 201810815169 A CN201810815169 A CN 201810815169A CN 108866811 A CN108866811 A CN 108866811A
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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
- D04H1/4266—Natural fibres not provided for in group D04H1/425
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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
- D04H1/4282—Addition polymers
- D04H1/4309—Polyvinyl alcohol
-
- 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
- D04H1/44—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
-
- 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
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- 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
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
-
- 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
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
-
- 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
-
- 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
- D10B2509/022—Wound dressings
-
- 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
- D10B2509/024—Stiffening bandages, e.g. with plaster of Paris
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a kind of ventilative medical non-woven fabrics of high water absorption height, are made of the raw material of following parts by weight：83 ~ 97 parts of modified polyvinyl alcohol fabric, modified 20 ~ 33 parts of mulberry fibre, 17 ~ 36 parts of modified chitosan fiber, 10 ~ 20 parts of carboxymethyl cellulose, 2 ~ 5 parts of casein, 20 ~ 30 parts of aloe fibre, 5 ~ 10 parts of sodium alginate, 21 ~ 35 parts of modified starch, 11 ~ 23 parts of polyvinylpyrrolidone, 3 ~ 5 parts of plant extracts.High water absorption height disclosed by the invention breathes freely medical elastic non-woven fabrics with good bacteriostatic activity, it can effectively prevent wound infection, it is extensive to adapt to symptom, health-care effect is significant, has high-hydroscopicity reliable, breathes freely pleasant, it is economical and practical, using the raw material of biodegradable natural macromolecular material, there is good biocompatibility, can be used as wound dressing, operation cloth, health care dressing etc..
Description
Technical field
The invention belongs to nonwoven production technical fields, and in particular to a kind of ventilative medical non-woven fabrics of high water absorption height.
Background technique
Medical non-woven fabrics is that one kind does not need fabric made of spinning and weaving, is mainly directly bonded by the method for physics
Together, so can find that the end of a thread can not be extracted out from non-woven fabrics when sticking into.It breaches traditional weaving principle, with tradition
Pure cotton Woven textiles compare, medical non-woven fabrics have it is moisture-proof, ventilative, flexible, light, not combustion-supporting, be easy decompose, nontoxic nothing
Irritation, it is cheap, recyclable the advantages such as recycle, be highly suitable for medical domain.The application of medical non-woven fabrics is very wide
It is general, it medically can be used for producing mask, operating cap, disposable surgical clothing, Dispoable medical sheet, puerpera's packet, diaper etc.
Deng medical non-woven fabrics being placed in outdoor, MaLS only has 90 days, if being placed on interior, will divide naturally in 8 years
Solution, so belonging to Novel environment-friendlymaterial material.
Currently, various disposable medical instruments capture rapidly hygienic material and Medical Device Market.With the doctor of recycling
It treats instrument to compare with hygienic material, disposable products can substantially reduce the probability that cross-infection occurs in hospital for patient.And valence
Lattice are cheap, the appearance of soft medical non-woven fabrics raw material, then the production for disposable surgical towel and medical gowns is established
Solid foundation.As those skilled in the art, it would be highly desirable to the ventilative medical non-woven cloth material of high water absorption height is developed, to be suitable for
A variety of medical applications.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of ventilative medical non-woven fabrics of high water absorption height is provided.
The invention is realized by the following technical scheme：
A kind of ventilative medical non-woven fabrics of high water absorption height, includes component below：83 ~ 97 parts of modified polyvinyl alcohol fabric is modified
20 ~ 33 parts of mulberry fibre, 17 ~ 36 parts of modified chitosan fiber, 10 ~ 20 parts of carboxymethyl cellulose, 2 ~ 5 parts of casein, aloe are fine
Tie up 20 ~ 30 parts, 5 ~ 10 parts of sodium alginate, 21 ~ 35 parts of modified starch, 11 ~ 23 parts of polyvinylpyrrolidone, plant extracts 3 ~ 5
Part.
A kind of ventilative medical non-woven fabrics of high water absorption height, preparation method includes the following steps：（1）Weigh shredding：It weighs each
Raw material, modified polyvinyl alcohol fabric, modified mulberry fibre, modified chitosan fiber, carboxymethyl cellulose, casein, aloe are fine
Dimension carries out weighing shredding mixing in weighing bale opener in proportion, puts on conveyer belt, be sent to thick opener, make blocky volume
The fiber of song compacting obtains preliminary shredding, the short fibre of mixing of preliminary shredding is made, then send the effect with cyclone separator by wind,
Make it be evenly distributed on the big storehouse of mixed cotton to be deposited, guarantees that cotton layer height is consistent, by the collective effect of band and the oblique curtain of brad, make
It is transported to smart booting, and abundant shredding and pre-comb are carried out in refined opener, makes the further shredding of fiber, is straightened, passes through wind
Machine is sent into carding machine；（2）Combing：Receive the fiber that feeds according to technique initialization weight of air pressure cotton box in carding machine, enter to
After cotton roller, with random net (i.e. airlaid), net process is that the fiber of preparatory shredding is fed the roller with metallic card clothing,
It separates single fiber and is mixed with air-flow, fiber is then sent by agglomerator by air-flow, separates fiber with air-flow, thus shape
At the web of random random distribution, sodium alginate, modified starch, polyvinylpyrrolidone, plant extracts are uniformly sprayed,
Make web under the action of not by external force, by reciprocating, its lapping is made to reach 6 ~ 10 layers；（3) needle pierces：It will be by comb
The web that reason, lapping are formed tentatively is tangled web sizing by pre-needling process, will be passed through pre-needling machine and tentatively be tangled
Web tangled by main needing machine further needle thorn, then drawing-off, winding, sizing to get.
Further, the modified polyvinyl alcohol fabric is carbamoylethyl vinal, is specially being contained
In the aqueous solution of acrylamide 32g/L, sodium sulphate 25% and disodium hydrogen phosphate 2%, first at 100 DEG C cure 5min, after in 50 DEG C
Lower processing 3h to get.
Further, the aloe fibre, be common aloe through degumming, de- hardship, chopping, be crushed, through solution-polymerized SBR system
?.
Further, the modification mulberry fibre is that mulberry root bark pulp handles simultaneously by ozone and hydrogen peroxide and is aided with ultrasound
Wave handles 30min；The concentration of ozone gas is 1 ~ 2ppm, and the hydrogen peroxide concentration is that hydrogen peroxide concentration is 10 ~ 20%.
Further, the plant extracts be cape gooseberry, Salvia japonica, tea grounds, aloe, argy wormwood, dried orange peel, Schisandra chinensis,
One of cape jasmine, wilsonii, Radix Glycyrrhizae, the coptis, rheum officinale, dandelion, semen plantaginis, ginger, garlic, cordate houttuynia or a variety of extractions
Object.
Further, the modified chitosan fiber is, after shell is removed impurity, clear water rinsing, dilute acid pretreatment, alkali
Boil removing protein degreasing, carry out decalcification processing decolorization again, adjust pH value 5 or so with 2 ~ 4 times of clear water, in acid condition plus
Enter 1% potassium permanganate until aubergine does not take off, to remove the organic pigment of shell, then is rinsed with clear water, after decoloration
Shell is soaked in edible buck, then is bleached to obtain fair and clear chitosan with 1 ~ 4% oxalic acid, with 2 ~ 4 times 55 ~ 70% of dense hydrogen-oxygen
Change sodium 75 ~ 95 DEG C handle 10 ~ 20 hours, obtain chitosan crude product, crude product is dissolved in 8 ~ 10 times of 3 ~ 6% spirit of vinegar, slowly plus
Enter 10% or so concentrated base to there is mucus, be cooled to 5 ~ 25 DEG C, stands hydrolysis 2 ~ 4 hours, be neutralized to pH value 8 with dilute hydrochloric acid
~ 9, and floccule is generated, it is stirred continuously, until floccule no longer generates, filtering, washing removes sodium chloride, through solution-polymerized SBR, i.e.,
?.
Beneficial effects of the present invention：
Chitin fiber has good biocompatibility and life as a kind of natural macromolecular material, chitosan and its derivative
Biodegradable, there are also broad-spectrum antiseptic, anti-infective and very strong hemoglutination and promote wound rehabilitation healing, adjust blood lipid and
Reduce cholesterol strengthen immunity and a variety of physiological activities such as antitumor.As a kind of fibrous material, chitosan fiber
It can be processed to yarn, woven fabric, knitted fabric and non-woven fabric material.Chitosan yarn can be used for suture, can be in people
It degrades and absorbs in vivo.Chitosan woven fabric or knitted fabric can be used for the porous structure bracket of cell transplantation and regeneration.Shell
Glycan non-woven cloth can be used for handling the wound dressing of bleed stream purulence, have good moisture absorbability and moisture retentivity concurrently.Chitin fiber and its
The same no fusing point of his cellulose, does not soften, does not shrink, and has good heat resistance, and sunlight resistance can be poor.Chitin fiber equally has
There is excellent moisture-absorbing moisture-keeping function, since there are the hydrophilies such as a large amount of hydroxyl and amino on its macromolecular chain for chitin fiber
Group, therefore fiber has good hydrophily and very high hygroscopicity, the moisture pick-up properties and viscose of chitin fiber are close.Fiber is inhaled
After wet, the variation of a series of properties can be caused, and the conduction of fiber is closely related with both hygroscopicity.In addition, chitin fiber
Mass specific resistance value it is lower, chitin fiber work in-process is not likely to produce electrostatic.Good antistatic property makes chitosan
The clothes dress of fiber production is comfortable, does not have the personal sense with being adsorbed on.
Chitin fiber is extremely low in the intensity by the time of tide, and it is fine that a certain proportion of chitosan is mixed into vinal
Dimension, on the one hand, the spinnability that chitin fiber can be improved reduces the production cost of chitin fiber, assign blended fabric with
The healthcare functions such as good antibacterial, smelly eliminating；On the other hand, chitin fiber and mulberry fibre belong to natural materials, to human body flesh
Skin has good compatibility, and can be biodegradable, not can cause environmental pollution.And by blended yarn quality, taking
The test of the indexs such as energy, antibiotic property finds that this blending method can assign the good hygroscopicity of fabric, warming, antibacterial, deodorization, rush
Into healthcare functions such as blood circulations.
The present invention has the following advantages that compared with prior art：
Firstly, a kind of high water absorption height disclosed by the invention is breathed freely, medical non-woven fabrics is a kind of ideal medical material.It has
Spunlace non-woven cloth should have intensity, flexibility, good sucting wet air permeability spunlace non-woven cloth and watery blood diffusivity appropriate, can be effective
Bacterial penetration and liquid pollution are resisted in ground, and can efficiently control pollution channel, avoid cross-infection, reduce dust filoplume
It falls off, purifies surgical environments, is easy to use, convenient for storage, and these advantages are exactly that traditional cotton-spinning fabric and viscose glue weaving are defended
Less than green material.First-aid dressing, wound dressing can be made, operate on towel, bandage, rubber, absorbent cotton etc..
By starch dispersion in non-woven fabrics, belong to ecological fiber, there is cladding function, intramolecular can coat other substances, can
For removing stink substances or harmful substance.Because the biological chain starch in viscose plays molecule bag in the fibre, sometimes
This molecule bag coats target substance, and the substance in molecule bag is gradually discharged sometimes.There is deodorizing function, in biological chain Starch formation
Molecule bag inner sealing stink substances, to play deodorizing function, to low molecular ammonia, acetic acid is smelly and has the stink of alkyl chain to have
Effect；It is small to the irritation of skin with antibacterial, antiviral functions, there is biodegradability.It is light, have bulkiness, feel
It is good；It is soft：Finished product pliability is moderate, has comfort；Water repellent is breathed freely, and forms tool porosity by 100% fiber, gas permeability is good, easily
Keep cloth cover dry and comfortable, easy to wash；It is nontoxic, nonirritant.
Specific embodiment
Illustrate the present invention with specific embodiment below, but is not limitation of the present invention.
Embodiment 1
A kind of ventilative medical non-woven fabrics of high water absorption height, includes component below：90 parts of modified polyvinyl alcohol fabric, modified mulberry skin
25 parts of fiber, 30 parts of modified chitosan fiber, 15 parts of carboxymethyl cellulose, 3 parts of casein, 25 parts of aloe fibre, sodium alginate 8
Part, 30 parts of modified starch, 15 parts of polyvinylpyrrolidone, 4 parts of plant extracts.
A kind of ventilative medical non-woven fabrics of high water absorption height, preparation method includes the following steps：（1）Weigh shredding：It weighs each
Raw material, modified polyvinyl alcohol fabric, modified mulberry fibre, modified chitosan fiber, carboxymethyl cellulose, casein, aloe are fine
Dimension carries out weighing shredding mixing in weighing bale opener in proportion, puts on conveyer belt, be sent to thick opener, make blocky volume
The fiber of song compacting obtains preliminary shredding, the short fibre of mixing of preliminary shredding is made, then send the effect with cyclone separator by wind,
Make it be evenly distributed on the big storehouse of mixed cotton to be deposited, guarantees that cotton layer height is consistent, by the collective effect of band and the oblique curtain of brad, make
It is transported to smart booting, and abundant shredding and pre-comb are carried out in refined opener, makes the further shredding of fiber, is straightened, passes through wind
Machine is sent into carding machine；（2）Combing：Receive the fiber that feeds according to technique initialization weight of air pressure cotton box in carding machine, enter to
After cotton roller, with random net (i.e. airlaid), net process is that the fiber of preparatory shredding is fed the roller with metallic card clothing,
It separates single fiber and is mixed with air-flow, fiber is then sent by agglomerator by air-flow, separates fiber with air-flow, thus shape
At the web of random random distribution, sodium alginate, modified starch, polyvinylpyrrolidone, plant extracts are uniformly sprayed,
Make web under the action of not by external force, by reciprocating, its lapping is made to reach 6 ~ 10 layers；（3) needle pierces：It will be by comb
The web that reason, lapping are formed tentatively is tangled web sizing by pre-needling process, will be passed through pre-needling machine and tentatively be tangled
Web tangled by main needing machine further needle thorn, then drawing-off, winding, sizing to get.
Further, the modified polyvinyl alcohol fabric is carbamoylethyl vinal, is specially being contained
In the aqueous solution of acrylamide 32g/L, sodium sulphate 25% and disodium hydrogen phosphate 2%, first at 100 DEG C cure 5min, after in 50 DEG C
Lower processing 3h to get.
Further, the aloe fibre, be common aloe through degumming, de- hardship, chopping, be crushed, through solution-polymerized SBR system
?.
Further, the modification mulberry fibre is that mulberry root bark pulp handles simultaneously by ozone and hydrogen peroxide and is aided with ultrasound
Wave handles 30min；The concentration of ozone gas is 1 ~ 2ppm, and the hydrogen peroxide concentration is that hydrogen peroxide concentration is 10 ~ 20%.
Further, the plant extracts be cape gooseberry, Salvia japonica, tea grounds, aloe, argy wormwood, dried orange peel, Schisandra chinensis,
One of cape jasmine, wilsonii, Radix Glycyrrhizae, the coptis, rheum officinale, dandelion, semen plantaginis, ginger, garlic, cordate houttuynia or a variety of extractions
Object.
Further, the modified chitosan fiber is, after shell is removed impurity, clear water rinsing, dilute acid pretreatment, alkali
Boil removing protein degreasing, carry out decalcification processing decolorization again, adjust pH value 5 or so with 2 ~ 4 times of clear water, in acid condition plus
Enter 1% potassium permanganate until aubergine does not take off, to remove the organic pigment of shell, then is rinsed with clear water, after decoloration
Shell is soaked in edible buck, then is bleached to obtain fair and clear chitosan with 1 ~ 4% oxalic acid, with 2 ~ 4 times 55 ~ 70% of dense hydrogen-oxygen
Change sodium 75 ~ 95 DEG C handle 10 ~ 20 hours, obtain chitosan crude product, crude product is dissolved in 8 ~ 10 times of 3 ~ 6% spirit of vinegar, slowly plus
Enter 10% or so concentrated base to there is mucus, be cooled to 5 ~ 25 DEG C, stands hydrolysis 2 ~ 4 hours, be neutralized to pH value 8 with dilute hydrochloric acid
~ 9, and floccule is generated, it is stirred continuously, until floccule no longer generates, filtering, washing removes sodium chloride, through solution-polymerized SBR, i.e.,
?.
Embodiment 2
A kind of ventilative medical non-woven fabrics of high water absorption height, includes component below：90 parts of modified polyvinyl alcohol fabric, modified mulberry skin
25 parts of fiber, 25 parts of modified chitosan fiber, 28 parts of carboxymethyl cellulose, 4 parts of casein, 27 parts of aloe fibre, sodium alginate 8
Part, 24 parts of modified starch, 18 parts of polyvinylpyrrolidone, 3 parts of plant extracts.
A kind of ventilative medical non-woven fabrics of high water absorption height, preparation method includes the following steps：（1）Weigh shredding：It weighs each
Raw material, modified polyvinyl alcohol fabric, modified mulberry fibre, modified chitosan fiber, carboxymethyl cellulose, casein, aloe are fine
Dimension carries out weighing shredding mixing in weighing bale opener in proportion, puts on conveyer belt, be sent to thick opener, make blocky volume
The fiber of song compacting obtains preliminary shredding, the short fibre of mixing of preliminary shredding is made, then send the effect with cyclone separator by wind,
Make it be evenly distributed on the big storehouse of mixed cotton to be deposited, guarantees that cotton layer height is consistent, by the collective effect of band and the oblique curtain of brad, make
It is transported to smart booting, and abundant shredding and pre-comb are carried out in refined opener, makes the further shredding of fiber, is straightened, passes through wind
Machine is sent into carding machine；（2）Combing：Receive the fiber that feeds according to technique initialization weight of air pressure cotton box in carding machine, enter to
After cotton roller, with random net (i.e. airlaid), net process is that the fiber of preparatory shredding is fed the roller with metallic card clothing,
It separates single fiber and is mixed with air-flow, fiber is then sent by agglomerator by air-flow, separates fiber with air-flow, thus shape
At the web of random random distribution, sodium alginate, modified starch, polyvinylpyrrolidone, plant extracts are uniformly sprayed,
Make web under the action of not by external force, by reciprocating, its lapping is made to reach 6 ~ 10 layers；（3) needle pierces：It will be by comb
The web that reason, lapping are formed tentatively is tangled web sizing by pre-needling process, will be passed through pre-needling machine and tentatively be tangled
Web tangled by main needing machine further needle thorn, then drawing-off, winding, sizing to get.
Further, the modified polyvinyl alcohol fabric is carbamoylethyl vinal, is specially being contained
In the aqueous solution of acrylamide 32g/L, sodium sulphate 25% and disodium hydrogen phosphate 2%, first at 100 DEG C cure 5min, after in 50 DEG C
Lower processing 3h to get.
Further, the aloe fibre, be common aloe through degumming, de- hardship, chopping, be crushed, through solution-polymerized SBR system
?.
Further, the modification mulberry fibre is that mulberry root bark pulp handles simultaneously by ozone and hydrogen peroxide and is aided with ultrasound
Wave handles 30min；The concentration of ozone gas is 1 ~ 2ppm, and the hydrogen peroxide concentration is that hydrogen peroxide concentration is 10 ~ 20%.
Further, the plant extracts be cape gooseberry, Salvia japonica, tea grounds, aloe, argy wormwood, dried orange peel, Schisandra chinensis,
One of cape jasmine, wilsonii, Radix Glycyrrhizae, the coptis, rheum officinale, dandelion, semen plantaginis, ginger, garlic, cordate houttuynia or a variety of extractions
Object.
Further, the modified chitosan fiber is, after shell is removed impurity, clear water rinsing, dilute acid pretreatment, alkali
Boil removing protein degreasing, carry out decalcification processing decolorization again, adjust pH value 5 or so with 2 ~ 4 times of clear water, in acid condition plus
Enter 1% potassium permanganate until aubergine does not take off, to remove the organic pigment of shell, then is rinsed with clear water, after decoloration
Shell is soaked in edible buck, then is bleached to obtain fair and clear chitosan with 1 ~ 4% oxalic acid, with 2 ~ 4 times 55 ~ 70% of dense hydrogen-oxygen
Change sodium 75 ~ 95 DEG C handle 10 ~ 20 hours, obtain chitosan crude product, crude product is dissolved in 8 ~ 10 times of 3 ~ 6% spirit of vinegar, slowly plus
Enter 10% or so concentrated base to there is mucus, be cooled to 5 ~ 25 DEG C, stands hydrolysis 2 ~ 4 hours, be neutralized to pH value 8 with dilute hydrochloric acid
~ 9, and floccule is generated, it is stirred continuously, until floccule no longer generates, filtering, washing removes sodium chloride, through solution-polymerized SBR, i.e.,
?.
Comparative example 1
This comparative example compared with Example 2, weighs in step in raw material, saves modified polyvinyl alcohol fabric ingredient, in addition to this
Method and step is all the same.
Comparative example 2
This comparative example compared with Example 2, weighs in step in raw material, saves modified mulberry fibre ingredient, method in addition to this
Step is all the same.
Comparative example 3
This comparative example compared with Example 2, weighs in step in raw material, saves modified chitosan fiber ingredient, side in addition to this
Method step is all the same.
4 comparative examples of comparative example compared with Example 2, weigh in step in raw material, save aloe fibre ingredient, in addition to this
Method and step it is all the same.
The mechanical property of 1 each embodiment and comparative example institute medical non-woven fabrics of table
Note：The elasticity of non-woven fabrics disclosed by the invention is significantly improved it can be seen from upper table 1, while its density, disconnected
Resistance to spalling, control preferably, can be very nearly the same with originality.
The recoverability of each embodiment and comparative example non-woven fabrics of table 2
Note：The elastic property of each embodiment and comparative example non-woven fabrics carries out recoverability test, and method is as follows：Each elastomeric nonwoven
Cloth sample respectively prepares 5 parts, and having a size of 50mm*150mmMD*CD, longitudinal * is lateral), the distance between two fixture of tension tester is
80mm.By sample with the elongation state of the speed tensile of 500mm/min to 100%, the pulling force data (N) during this is measured, etc.
After 10s, fixture is made to naturally return to original state, and measures the screen resilience (N) of this process sample, and compared with original state
Final deformation quantity (%).
The performance of sucking blood of each embodiment and comparative example non-woven fabrics of table 3
。
Claims (7)
- The medical non-woven fabrics 1. a kind of high water absorption height is breathed freely, which is characterized in that include component below：Modified polyvinyl alcohol fabric 83 ~ 97 parts, modified 20 ~ 33 parts of mulberry fibre, 17 ~ 36 parts of modified chitosan fiber, 10 ~ 20 parts of carboxymethyl cellulose, casein 2 ~ 5 parts, 20 ~ 30 parts of aloe fibre, 5 ~ 10 parts of sodium alginate, 21 ~ 35 parts of modified starch, 11 ~ 23 parts of polyvinylpyrrolidone, plant 3 ~ 5 parts of object extract.
- 2. a kind of ventilative medical non-woven fabrics of high water absorption height according to right 1, which is characterized in that preparation method includes following Step：（1）Weigh shredding：Weigh each raw material, modified polyvinyl alcohol fabric, modified mulberry fibre, modified chitosan fiber, carboxylic first Base cellulose, casein, aloe fibre carry out weighing shredding mixing in weighing bale opener in proportion, put on conveyer belt, send Enter makes the fiber of blocky curling compacting obtain preliminary shredding to thick opener, the short fibre of mixing of preliminary shredding is made, then pass through wind Send the effect with cyclone separator, so that it is evenly distributed on the big storehouse of mixed cotton and deposited, guarantee that cotton layer height is consistent, by band and The collective effect of the oblique curtain of brad, makes it be transported to smart booting, and abundant shredding and pre-comb are carried out in refined opener, make fiber into One step shredding is straightened, and is sent into carding machine by blower；（2）Combing：Air pressure cotton box is received according to technique initialization weight in carding machine The fiber fed, after entering cotton-supplying roller, with random net (i.e. airlaid), net process is to feed the fiber of preparatory shredding Enter the roller with metallic card clothing, separate single fiber and mixed with air-flow, fiber is then sent by agglomerator by air-flow, makes fibre Dimension is separated with air-flow, to form the web of random random distribution, by sodium alginate, modified starch, polyvinylpyrrolidone, Plant extracts uniformly sprays, and makes web under the action of not by external force, by reciprocating, its lapping is made to reach 6 ~ 10 Layer；（3) needle pierces：Web will tentatively be tangled sizing by the web that combing, lapping are formed by pre-needling process, it will be through Cross web that pre-needling machine tentatively tangles to tangle by the further needle thorn of main needing machine, then drawing-off, winding, sizing to get.
- The medical non-woven fabrics 3. a kind of high water absorption height as described in right 1 is breathed freely, which is characterized in that the modified polyvinyl alcohol fabric For carbamoylethyl vinal, specially in 32g/L containing acrylamide, sodium sulphate 25% and disodium hydrogen phosphate 2% Aqueous solution in, first at 100 DEG C cure 5min, after handled at 50 DEG C 3h to get.
- The medical non-woven fabrics 4. a kind of high water absorption height as described in right 1 is breathed freely, which is characterized in that the aloe fibre is general Logical aloe is obtained through solution-polymerized SBR through degumming, de- hardship, chopping, broken.
- The medical non-woven fabrics 5. a kind of high water absorption height as described in right 1 is breathed freely, which is characterized in that the modification mulberry fibre is Mulberry root bark pulp handles simultaneously by ozone and hydrogen peroxide and is aided with ultrasonication 30min；The concentration of ozone gas is 1 ~ 2ppm, The hydrogen peroxide concentration is that hydrogen peroxide concentration is 10 ~ 20%.
- The medical non-woven fabrics 6. a kind of high water absorption height as described in right 1 is breathed freely, which is characterized in that the plant extracts is lamp Cage fruit, Salvia japonica, tea grounds, aloe, argy wormwood, dried orange peel, Schisandra chinensis, cape jasmine, wilsonii, Radix Glycyrrhizae, the coptis, rheum officinale, dandelion, Chinese herbaceous peony One of son, ginger, garlic, cordate houttuynia or a variety of extracts.
- The medical non-woven fabrics 7. a kind of high water absorption height as described in right 1 is breathed freely, which is characterized in that the modified chitosan fiber For, after shell is removed impurity, clear water rinsing, the degreasing of soda boiling removing protein, carries out decalcification processing decolorization at dilute acid pretreatment again, PH value is adjusted 5 or so with 2 ~ 4 times of clear water, and the potassium permanganate of addition 1% is not until aubergine takes off in acid condition, to remove The organic pigment of shell is removed, then is rinsed with clear water, the shell after decoloration is soaked in edible buck, then with 1 ~ 4% oxalic acid Bleaching obtains fair and clear chitosan, is handled 10 ~ 20 hours with 2 ~ 4 times 55 ~ 70% of concentrated sodium hydroxide at 75 ~ 95 DEG C, obtains chitosan Crude product is dissolved in 8 ~ 10 times of 3 ~ 6% spirit of vinegar by crude product, is slowly added into 10% or so concentrated base to there is mucus, is cooled to 5 ~ 25 DEG C, hydrolysis 2 ~ 4 hours are stood, pH value is neutralized to 8 ~ 9 with dilute hydrochloric acid, and generate floccule, is stirred continuously, until floccule is no longer Generate, filtering, washing remove sodium chloride, through solution-polymerized SBR to get.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281314A (en) * | 2020-09-28 | 2021-01-29 | 安徽锦昕医疗用品有限公司 | Disposable medical chemotherapy clothes |
| CN112409777A (en) * | 2020-11-09 | 2021-02-26 | 江苏鑫易达新材料科技有限公司 | Medical antibacterial breathable TPU film and preparation method thereof |
| CN112918049A (en) * | 2019-12-06 | 2021-06-08 | 青岛美泰无纺布有限公司 | High-air-permeability non-woven fabric |
| CN113577365A (en) * | 2021-07-30 | 2021-11-02 | 湖南联肯信息技术咨询有限公司 | Breathable anti-inflammation antibacterial medical non-woven fabric |
-
2018
- 2018-07-24 CN CN201810815169.0A patent/CN108866811A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918049A (en) * | 2019-12-06 | 2021-06-08 | 青岛美泰无纺布有限公司 | High-air-permeability non-woven fabric |
| CN112281314A (en) * | 2020-09-28 | 2021-01-29 | 安徽锦昕医疗用品有限公司 | Disposable medical chemotherapy clothes |
| CN112409777A (en) * | 2020-11-09 | 2021-02-26 | 江苏鑫易达新材料科技有限公司 | Medical antibacterial breathable TPU film and preparation method thereof |
| CN113577365A (en) * | 2021-07-30 | 2021-11-02 | 湖南联肯信息技术咨询有限公司 | Breathable anti-inflammation antibacterial medical non-woven fabric |
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Application publication date: 20181123 |