CN104383590B - A kind of bamboo protoconch polysaccharide functional dressing and preparation method thereof - Google Patents
A kind of bamboo protoconch polysaccharide functional dressing and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of containing bamboo fibre, the bamboo protoconch polysaccharide functional dressing of chitosan and preparation technology thereof, comprise the following steps: (1) mixing, shredding；(2) combing；(3) lapping；(4) pre-needling, described pre-needling uses diagonal stabbing, and the angle of needle insertion of described diagonal stabbing is 20 30 °；(5) the composite fibre net after pre-needling is carried out acupuncture, obtain dressing first product；(6) described dressing first product is carried out whole scalding, obtain dressing；(7) rolling.This invention is with bamboo fibre as skeleton, and chitin fiber is evenly distributed on skeleton, utilizes viscose rayon to strengthen adhesion, and each component fibre forms the one nonwoven fabric construct without layering by acupuncture, and more firmly, intensity is high, more robust；Between chitin fiber and bamboo fibre, crisscross intersection, mutually penetrates into, and respective efficacy effect is more longlasting, and traditional medicine spread upon on dressing inner surface the most easily comes off or rubbed；And impulse-free robustness on limit.
Description
Technical field
The present invention relates to a kind of dressing and preparation technology thereof, particularly relate to a kind of containing bamboo fibre, the bamboo protoconch of chitosan
Polysaccharide functional dressing and preparation technology thereof, belong to field of medical article technology.
Background technology
Injured or postoperative wound needs to be acted upon with dressing, the too much transudate oozed out from wound with absorption, makes
Wound energy quickly-healing.But existing dressing comes with some shortcomings: when transudate is too much, water accepting layer can not fully absorb
Falling, again can go out from water accepting layer reverse osmosis, cause the impregnated maceration of skin of wound, healing rate is slow, even occurs festering, pole
The big misery increasing the wounded, to this end, the dressing of large quantities of improvement occurs successively, in Patent No. CN203662986
State's patent discloses a kind of novel foam composite wound dressing on June 25th, 2014, arranges the fast water accepting layer of water suction and strong lock
The lock water layer of water, it is ensured that the suitable epidemic disaster in wound, prevents the place's of sticking skin from impregnation occur, and wound healing is fast.But
These dressing existing, if the effect if required up quickening healing, in addition it is also necessary to coat medicine in the inner side of dressing, compare
Trouble, and the easy breed bacteria in wound, affect healing effect, cross infection even occur.
Summary of the invention
When an object of the present invention is to solve existing dressing use, the easy breed bacteria of wound, healing effect is poor,
And the defect of medicine to be used, it is provided that a kind of bamboo protoconch polysaccharide functional dressing, good permeability, can be the most antibacterial, quickly inhale
Receive the liquid that wound oozes out, keep the microenvironment of wound proper moisture, the beneficially healing of wound, moreover it is possible to quick-acting haemostatic powder.
The two of the purpose of the present invention are to provide the preparation method of above-mentioned bamboo protoconch polysaccharide functional dressing, and dressing can be made each former
Effect of material plays one's part to the full, and can persistently work, and dressing entirety is firm, durable, and comfort level is good, and preparation efficiency is high.
In order to realize an object of the present invention, adopt the following technical scheme that: a kind of bamboo protoconch polysaccharide functional dressing,
Raw material including following weight portion: chitin fiber 1-2 weight portion, bamboo fibre 3-7 weight portion and viscose rayon 2-5 weight
Part.
By implementing this technical scheme, the present invention:
1. chitosan has another name called chitosan, is the product after chitin sloughs certain acetyl group, formal name used at school poly-2-deoxidation-β-D
Glucose, has the strongest hygroscopicity, good breathability and biocompatibility, also has the antibiotic property of wide spectrum and certain stopping
Blood effect, can effectively prevent wound infection, beneficially wound healing；And chitosan energy biodegradation, will not cause dirt to environment
Dye；And chitosan is a kind of natural macromolecular material forming hydrogel, can become gel-like after meeting water, affinity is good, tool
Having the attachment of certain elasticity and rate of tension, beneficially dressing and patient skin, patient comfort is high, and nontoxic without secondary work
With.
2. there is the shortcomings such as relatively big, the water-resistance difference of poor mechanical property, fragility due to pure chitosan film dressing, by having
Some strength and the bamboo fibre of enabling capabilities, play the effect of skeleton, can strengthen the intensity of dressing, improves the quality of dressing, with
Time bamboo fibre be mainly composed of cellulose, hemicellulose and lignin, physiological action can be participated in directly or indirectly, its
Body has certain antibacterial, Fungicidal substance, possesses health care, and can 100% biodegradation, the antibacterial of dressing can be improved
Performance and degradability, safety and sanitation environmental protection.
3. the addition of viscose rayon, one can strengthen the bonding strength between chitin fiber and bamboo fibre, improves and applies
The firmness that material is overall；Two support strengths that can improve dressing；Three due to the low cost of viscose rayon, can reduce deposited
The production cost of material.
As preferably, the chitosan of described chitin fiber be deacetylation be the chitosan of 80-95%.Deacetylation with
The gel characteristic of chitosan is closely related, and deacetylation is the highest, and during chitosan is the most soluble in water, its gel characteristic is the most obvious, 90-
The deacetylation of 100% makes the rate of tension appropriateness of dressing, can keep the intensity of certain dressing needs, has again certain soft
Softness, it is simple to stick, deacetylation is too high, and not only its suppleness is improper, and cost is greatly increased.
As preferably, described chitosan is high-viscosity chitosan, the viscosity of described high-viscosity chitosan be 0.8～
1.0Pa·s.It is beneficial to the connection maintaining the toughness of dressing and strengthening between chitin fiber and bamboo fibre.
As preferably, the weight of described dressing basic unit is 60-180g/m2.The thickness making dressing is suitable, good permeability, again
Abundant wound fluid can be absorbed.
As preferably, the lock water layer of described dressing basic unit upper surface, described lock water layer is strong water-absorption fiber layer.Lock water layer
Capillary force is more than the capillary force of dressing basic unit.
Transudate is sucked by lock water layer by systemic for dressing basic unit wound fluid by hydrophilic group, locks water after suction
The layer rapid swelling of material, forming the water gel of some strength, having good lock outlet capacity, even if there being certain pressure effect
On it, water is not easy to backflow and oozes out.
In order to realize the two of the purpose of the present invention, adopt the following technical scheme that: a kind of bamboo protoconch polysaccharide functional dressing
Preparation method, comprise the following steps: (1) according to weight portion mix, shredding, obtain composite fibre；(2) described composite fibre is sent
Enter carding machine and carry out combing；(3) composite fibre after combing is carried out lapping, if laying dried layer, staggered laying between every layer,
To composite fibre net；(4) composite fibre net carrying out pre-needling, described pre-needling uses diagonal stabbing, the angle of needle insertion of described diagonal stabbing
For 20-30 °；(5) the composite fibre net after pre-needling being carried out acupuncture, obtain dressing first product, described acupuncture includes first round pin
Thorn and second takes turns acupuncture, each take turns described acupuncture and all includes acupuncture and lower acupuncture；The acupuncture speed of described first round acupuncture is big
In the described second acupuncture speed taking turns acupuncture；(6) described dressing first product is carried out whole scalding, obtain dressing；(7) rolling.
By implementing technique scheme, this preparation method: with bamboo fibre as skeleton, chitin fiber is evenly distributed on bone
On frame, utilizing viscose rayon to strengthen adhesion, each component fibre forms the one nonwoven fabric construct without layering by acupuncture, more firm
Gu, intensity is high, more robust；Between chitin fiber and bamboo fibre, crisscross intersection, mutually penetrates into, and respective efficacy effect is more held
For a long time, traditional medicine spread upon on dressing inner surface the most easily comes off or is rubbed；And impulse-free robustness on limit.Utilize mixed
The series of process such as conjunction, shredding remove impurity, lapping, acupuncture complete, the crisscross intertexture of each raw fibre, and acupuncture molding is not stratified, significantly
Strengthen the overall firmness of dressing and intensity.At the needle-punching run maximum to dressing entire effect, use pre-needling, the first round
The mode of acupuncture, and the angle of reasonable selection acupuncture, speed are taken turns in acupuncture and second: pre-needling uses diagonal stabbing, can be quickly by fibre
The raw material of dimension shape stings in cloth shape, is conducive to improving efficiency；Conventional perpendicular insertion is then used in rear two-wheeled acupuncture, and controls acupuncture speed,
It is beneficial to strengthen intensity and the break-draw degree of dressing, the finest and close without regard to making dressing, affect its breathability.
As preferably, the mixing described in step (1), shredding include mixing for the first time, shredding and second time mix, open
Pine, the mixing of described first time, shredding are bamboo fibre and viscose rayon to be mixed, then shredding, reach just combined filament；Described
Second time mixing, shredding are to add chitin fiber in described just combined filament to mix, shredding the most again.
Viscose rayon first mixes with bamboo fibre, shredding, is more beneficial for that chitin fiber is distributed in bamboo uniformly, securely fine
In dimension skeleton, it is ensured that the intensity of dressing and the persistency of effect.
As preferably, the combing described in step (2) includes the first combing first carried out and goes out to carry out after combing described again
Combing is managed, cylinder speed when cylinder speed during described just combing is managed more than described combing.
Composite fibre can quickly first be combed suitable by the first combing using bigger cylinder speed, reduces tuberosity between fiber,
And it being more beneficial for remove impurity, combing afterwards is managed, and reduces cylinder speed, reduces the damage to fiber, reduces short fiber content.
As preferably, cylinder speed during described just combing is 400-500/r.min-1；Cylinder speed during described combing reason
Degree is 300-350/r.min-1.Cylinder speed can improve greatly carding efficiency, but can damage fiber, cause short fiber content to increase, no
It is beneficial to the intensity of dressing, uses suitable cylinder speed, combing effect can be improved to greatest extent on the basis of protection fiber
Rate.
As preferably, the needling density of step (2) acupuncture of the described first round is 200-250 thorn/cm2；Second takes turns acupuncture
Needling density is 180-200 thorn/cm2。
Needling density refers to the acupuncture number that fleece is suffered in unit are, and needling density is the biggest, and obtained applies
Material intensity is the biggest, the most solid stiffening, but is but unfavorable for the ventilative of dressing, and increases the difficulty of technique.First round pin
Thorn first select high density acupuncture, be rapidly achieved acupuncture interconnection function, second takes turns, and reduces density, be beneficial to control dressing intensity and
Abundant degree.
As preferably, the depth of needling of step (2) described acupuncture is 7-10.Depth of needling refers to that pricker needle point is through torr
When web plate is to extreme position, needle point is to the distance on the surface of torr web plate holding fibre web, and i.e. during acupuncture, pricker stretches out after fibre web
The greatest length of fibre web, different according to the material of required acupuncture, the thickness difference of net, this adjuvant uses soft chopped fiber,
Depth of needling is unsuitable too high, and the too high intensity that can strengthen adjuvant of the degree of depth, it is unfavorable for the ventilative of dressing.
As preferably, the described whole boiling hot temperature of step (6) is 120-135 DEG C.
By using the dressing obtained by technical scheme to have a following beneficial effect:
1. accelerate wound healing: ensure the suitable epidemic disaster in wound: use and there is strongly hygroscopic dressing basic unit, and
Time siphon away wound fluid, keep being beneficial to wound healing microenvironment, and be provided with antiseepage film, transudate will not reflux, and keeps
At lock water layer；The dressing of suitable thickness can also keep the suitable temperature of wound, beneficially wound healing；Have good antibacterial, kill
Bacterium effect: use and there is the antibacterial chitin fiber of sterilization and bamboo fibre, wound can be played the antibacterial action that effectively sterilizes, keep away
Exempt from wound infection, accelerate wound healing.
2. have no side effect, environmentally safe: dressing without the characteristic of medicine, beneficially base material itself, accelerate wound more
Closing, drug action is lasting, has no side effect；And base material is the most biodegradable, environmentally safe.
3. use comfortable: chitosan is a kind of natural macromolecular material forming hydrogel, can become gel-like after meeting water,
Affinity is good, has the attachment of certain elasticity and rate of tension, beneficially dressing and patient skin, and patient comfort is high.
4. dressing is firm: use bamboo fibre and the viscose rayon with certain holding strength, and wrong with chitin fiber
Combine and interweave, acupuncture molding, not stratified, it is greatly reinforced the overall firmness of dressing and intensity.
5. quality is good, efficiency is high: the mixed distribution of fiber is carried out, and can not only fully mix, and more saves than disposable mixing
Making an appointment, viscose rayon first mixes with bamboo fibre, is more beneficial for being distributed in chitin fiber uniformly, securely bamboo fibre skeleton
In, it is ensured that the intensity of dressing and the persistency of effect；Acupuncture uses pre-needling, first round acupuncture and second to take turns the mode of acupuncture,
And the angle of reasonable selection acupuncture, speed: pre-needling uses diagonal stabbing, can quickly sting fibrous raw material in cloth shape, favorably
In improving efficiency；Conventional perpendicular insertion is then used in rear two-wheeled acupuncture, and controls acupuncture speed, is beneficial to strengthen intensity and the fracture of dressing
Degree of drawing, the finest and close without regard to making dressing, affect its breathability.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1:
A kind of bamboo protoconch polysaccharide functional dressing, overall weight is 60g/m2, including the raw material of following weight portion: chitosan
Fiber 1 weight portion, bamboo fibre 3 weight portion and viscose rayon 2 weight portion, the deacetylating degree of chitosan of chitin fiber is
100%。
The preparation method of above-mentioned functions dressing, comprises the following steps: (1) mixing, shredding for the first time: by bamboo fibre with viscous
Glue fiber mixes, then shredding, reaches just combined filament；Second time mixing, shredding: chitin fiber is added just combined filament
In mix, shredding the most again, finally obtain composite fibre；(2) composite fibre feeding carding machine carries out combing just combing, it
After carry out again combing reason, cylinder speed during first combing more than combing manage time cylinder speed；Cylinder speed during just combing
For 500/r.min-1, cylinder speed during combing reason is 300/r.min-1；(3) composite fibre after combing is carried out lapping, paving
If 6-10 layer, the present embodiment is 8 layers, and between every layer, staggered laying, obtains composite fibre net；(4) composite fibre net is carried out pre-
Acupuncture, pre-needling uses diagonal stabbing, and the angle of needle insertion is 20 °；(5) the composite fibre net after pre-needling is carried out acupuncture, the pin of acupuncture
The thorn degree of depth is 7, obtains dressing first product, and described acupuncture includes that acupuncture is taken turns in first round acupuncture and second, each takes turns described acupuncture all
Including upper acupuncture and lower acupuncture；The acupuncture speed of first round acupuncture takes turns the acupuncture speed of acupuncture more than second, first round acupuncture
Needling density is 250 thorns/cm2；Second needling density taking turns acupuncture is 200 thorns/cm2；(6) dressing first product is carried out whole scalding, whole boiling hot
Temperature be 135 DEG C, obtain dressing；(7) rolling.
Embodiment 2:
A kind of bamboo protoconch polysaccharide functional dressing, overall weight is 180g/m2, including the raw material of following weight portion: shell gathers
Sugar fiber 2 weight portion, bamboo fibre 7 weight portion and viscose rayon 5 weight portion, the deacetylating degree of chitosan of chitin fiber is
90%。
The preparation method of above-mentioned functions dressing, comprises the following steps: (1) mixing, shredding for the first time: by bamboo fibre with viscous
Glue fiber mixes, then shredding, reaches just combined filament；Second time mixing, shredding: chitin fiber is added just combined filament
In mix, shredding the most again, finally obtain composite fibre；(2) composite fibre feeding carding machine carries out combing just combing, it
After carry out again combing reason, cylinder speed during first combing more than combing manage time cylinder speed；Cylinder speed during just combing
For 400/r.min-1, cylinder speed during combing reason is 350/r.min-1；(3) composite fibre after combing is carried out lapping, paving
If 6-10 layer, the present embodiment is 6 layers, and between every layer, staggered laying, obtains composite fibre net；(4) composite fibre net is carried out pre-
Acupuncture, pre-needling uses diagonal stabbing, and the angle of needle insertion is 30 °；(5) the composite fibre net after pre-needling is carried out acupuncture, the pin of acupuncture
The thorn degree of depth is 10, obtains dressing first product, and described acupuncture includes that acupuncture is taken turns in first round acupuncture and second, each takes turns described acupuncture all
Including upper acupuncture and lower acupuncture；The acupuncture speed of first round acupuncture takes turns the acupuncture speed of acupuncture more than second, first round acupuncture
Needling density is 200 thorns/cm2；Second needling density taking turns acupuncture is 180 thorns/cm2；(6) dressing first product is carried out whole scalding, whole boiling hot
Temperature be 120 DEG C, obtain dressing；(7) rolling.
Embodiment 3:
A kind of bamboo protoconch polysaccharide functional dressing, overall weight is 150g/m2, including the raw material of following weight portion: shell gathers
Sugar fiber 1.5 weight portion, bamboo fibre 5 weight portion and viscose rayon 3 weight portion, the deacetylating degree of chitosan of chitin fiber is
95%。
The preparation method of above-mentioned functions dressing, comprises the following steps: (1) mixing, shredding for the first time: by bamboo fibre with viscous
Glue fiber mixes, then shredding, reaches just combined filament；Second time mixing, shredding: chitin fiber is added just combined filament
In mix, shredding the most again, finally obtain composite fibre；(2) composite fibre feeding carding machine carries out combing just combing, it
After carry out again combing reason, cylinder speed during first combing more than combing manage time cylinder speed；Cylinder speed during just combing
For 450/r.min-1, cylinder speed during combing reason is 300/r.min-1；(3) composite fibre after combing is carried out lapping, paving
If 6-10 layer, the present embodiment is 7 layers, and between every layer, staggered laying, obtains composite fibre net；(4) composite fibre net is carried out pre-
Acupuncture, pre-needling uses diagonal stabbing, and the angle of needle insertion is 25 °；(5) the composite fibre net after pre-needling is carried out acupuncture, the pin of acupuncture
The thorn degree of depth is 9, obtains dressing first product, and described acupuncture includes that acupuncture is taken turns in first round acupuncture and second, each takes turns described acupuncture all
Including upper acupuncture and lower acupuncture；The acupuncture speed of first round acupuncture takes turns the acupuncture speed of acupuncture more than second, first round acupuncture
Needling density is 200 thorns/cm2；Second needling density taking turns acupuncture is 190 thorns/cm2；(6) dressing first product is carried out whole scalding, whole boiling hot
Temperature be 130 DEG C, obtain dressing；(7) rolling.
Embodiment 4:
A kind of bamboo protoconch polysaccharide functional dressing, overall weight is 100g/m2, including the raw material of following weight portion: shell gathers
Sugar fiber 2 weight portion, bamboo fibre 6 weight portion and viscose rayon 3 weight portion, the deacetylating degree of chitosan of chitin fiber is
98%。
The preparation method of above-mentioned functions dressing, comprises the following steps: (1) mixing, shredding for the first time: by bamboo fibre with viscous
Glue fiber mixes, then shredding, reaches just combined filament；Second time mixing, shredding: chitin fiber is added just combined filament
In mix, shredding the most again, finally obtain composite fibre；(2) composite fibre feeding carding machine carries out combing just combing, it
After carry out again combing reason, cylinder speed during first combing more than combing manage time cylinder speed；Cylinder speed during just combing
For 420/r.min-1, cylinder speed during combing reason is 340/r.min-1；(3) composite fibre after combing is carried out lapping, paving
If 6-10 layer, the present embodiment is 10 layers, and between every layer, staggered laying, obtains composite fibre net；(4) composite fibre net is carried out pre-
Acupuncture, pre-needling uses diagonal stabbing, and the angle of needle insertion is 28 °；(5) the composite fibre net after pre-needling is carried out acupuncture, the pin of acupuncture
The thorn degree of depth is 8, obtains dressing first product, and described acupuncture includes that acupuncture is taken turns in first round acupuncture and second, each takes turns described acupuncture all
Including upper acupuncture and lower acupuncture；The acupuncture speed of first round acupuncture takes turns the acupuncture speed of acupuncture more than second, first round acupuncture
Needling density is 185 thorns/cm2；Second needling density taking turns acupuncture is 235 thorns/cm2；(6) dressing first product is carried out whole scalding, whole boiling hot
Temperature be 135 DEG C, obtain dressing；(7) rolling.
Claims (7)
1. the preparation method of a bamboo protoconch polysaccharide functional dressing, it is characterised in that: comprise the following steps: (1) is by chitosan
Fiber 1-2 weight portion, bamboo fibre 3-7 weight portion and the mixing of viscose rayon 2-5 weight portion, shredding, obtain composite fibre, state shell
The deacetylating degree of chitosan of polysaccharide fiber is 90-100%, and the weight of described dressing is 60-180g/m2；(2) described composite fibre
Send into carding machine and carry out combing；(3) composite fibre after combing is carried out lapping, obtain composite fibre net；(4) to composite fibre
Net carries out pre-needling, and described pre-needling uses diagonal stabbing, and the angle of needle insertion of described diagonal stabbing is 20-30 °；(5) to mixing after pre-needling
Condensating fiber net carries out acupuncture, obtains dressing first product, and described acupuncture includes that acupuncture is taken turns in first round acupuncture and second, each takes turns described pin
Thorn all includes acupuncture and lower acupuncture；The acupuncture speed of described first round acupuncture takes turns the acupuncture speed of acupuncture more than described second；
(6) described dressing first product is carried out whole scalding, obtain dressing；(7) rolling.
A kind of preparation method of bamboo protoconch polysaccharide functional dressing, it is characterised in that: step (1)
Described in mixing, shredding include mixing for the first time, shredding and second time mixing, shredding, the mixing of described first time, shredding be by
Bamboo fibre and viscose rayon mix, then shredding, reach just combined filament；The mixing of described second time, shredding are by chitosan
Fiber adds in described just combined filament and mixes, shredding the most again.
A kind of preparation method of bamboo protoconch polysaccharide functional dressing, it is characterised in that: step (2)
Described combing includes the first combing first carried out and the combing reason carried out again after described just combing, cylinder during described just combing
Cylinder speed when speed is managed more than described combing.
A kind of preparation method of bamboo protoconch polysaccharide functional dressing, it is characterised in that: described just comb
Cylinder speed during reason is 400-500/r.min-1；Cylinder speed during described combing reason is 300-350/r.min-1。
A kind of preparation method of bamboo protoconch polysaccharide functional dressing, it is characterised in that: step (5)
The needling density of described first round acupuncture is 200-250 thorn/cm2；Second needling density taking turns acupuncture is 180-200 thorn/cm2。
A kind of preparation method of bamboo protoconch polysaccharide functional dressing, it is characterised in that: step (5)
The depth of needling of described acupuncture is 7-10.
A kind of preparation method of bamboo protoconch polysaccharide functional dressing, it is characterised in that: step (6)
Described whole boiling hot temperature is 120-135 DEG C.
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| CN105055290A (en) * | 2015-07-31 | 2015-11-18 | 界首市双鑫纺织有限公司 | Natural environment-friendly wet tissue |
| CN105343923A (en) * | 2015-11-20 | 2016-02-24 | 枝江奥美医疗用品有限公司 | Medical dressing material and preparation method thereof |
| CN106377791A (en) * | 2016-09-06 | 2017-02-08 | 广东泰宝医疗科技股份有限公司 | Bamboo alginate functional dressing and preparation method thereof |
| CN111437429A (en) * | 2019-01-16 | 2020-07-24 | 云南德华生物药业有限公司 | Soluble hydroxyethyl modified cotton fiber fabric and preparation method thereof |
| CN113756015A (en) * | 2021-08-11 | 2021-12-07 | 杭州萧山凤凰纺织有限公司 | High-water-absorption environment-friendly non-woven fabric |
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