CN102225638A - Three-layered composite chitin non-woven fabric, and preparation method and application thereof - Google Patents
Three-layered composite chitin non-woven fabric, and preparation method and application thereof Download PDFInfo
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- CN102225638A CN102225638A CN2011100934313A CN201110093431A CN102225638A CN 102225638 A CN102225638 A CN 102225638A CN 2011100934313 A CN2011100934313 A CN 2011100934313A CN 201110093431 A CN201110093431 A CN 201110093431A CN 102225638 A CN102225638 A CN 102225638A
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Abstract
The invention belongs to the technical field of non-woven fabrics, and relates to a three-layered composite chitin non-woven fabric, a preparation method thereof and an application thereof. The three-layered composite chitin non-woven fabric comprises a chitin fabric layer, an ES fabric layer, and a viscose fabric layer between the two. The chitin fabric layer, the ES fabric layer, and the viscose fabric layer are combined into an integral whole. The three-layered composite chitin non-woven fabric has advantages of good flexibility, good ventilating and moisturizing capacities, good haemostasis and tissue fluid absorption capacities, and ideal wound curing effect. Also, the fabric can be compactly applied on a wound. With the fabric, tissue fluid can be prevented from overflowing, and adhesion between a wounded area and the fiber can be avoided. With the method provided by the present invention, the preparation of the fiber can be achieved by a traditional non-woven machine, and no special apparatus is required. With the method, comprehensive embodiments of the technical effects of the three-layered composite chitin non-woven fabric can be ensured. According to the application provided by the present invention, the technical effects of the three-layered composite chitin non-woven fabric can be embodied in medical treatments.
Description
Technical field
The invention belongs to the adhesive-bonded fabric technical field, be specifically related to three layers of compound nonwoven cloth of a kind of chitin, and relate to the preparation method and the application of this kind compound nonwoven cloth.
Background technology
Chitin has another name called chitin or shitosan, it is natural glycosaminoglycan polymer substance like a kind of chemical constitution and the fiber-like, also be the present edibility animal origin of unique cation in the world, it extensively is present in the cell membrane of the duricrust of insect, shellfish such as ocean shrimp and crab shell and so on and mushroom.Along with to the deepening continuously of chitin and derivative thereof research, find that chitin can suppress cancer, hepatopathy and diabetes, reduce cholesterol, strengthen body immunity and prevent a series of effects such as aging.
In recent years, chitin and derivative thereof are widely used in medicine and hygiene fields in American-European developed country, and for example the du pont company operation suture thread that takes the lead in successfully having produced need not to remove suture behind the Wound healing.And for example utilize chitin solution coating (coating) in nonwoven as medical application, or the like.
At present, China is prepared into the treatment that the aqueous solution, saliva stream film, gel and pulvis etc. are used for medical wound with chitin, yet, chitin water soluble liquid, saliva has corresponding deficiency when film, gel and pulvis and even chitin nonwoven are used for the treatment of wound when being flowed, use inconvenient as chitin water soluble liquid, chitin composition in the saliva stream film is that content is lower, gel has the drawback of gas permeability difference, and the production process of pulvis is complicated and cost an arm and a leg.Chitin nonwoven in the prior art or make by 100% chitin fiber, make dressing with other fiber blend, the dressing that the former is made by 100% chitin fiber is to guarantee to have enough thickness or claim grammes per square metre to make price extremely expensive, though and the dressing that the latter and other fiber blend are made can reduce cost significantly, the effect of chitin obviously weakens.
Undoubtedly, although chitin dressing is because of reaching by its medical product made from respect to the CN101721277A(medical adhesive tape), CN101601621A(easy-to-tear waterproof anti-sticking medical adhesive tape and production method thereof), CN1061563C(heat molten type ester acrylate pressure-sensitive glue for medical use) and the quick glue of CN1292038C(hydrophilic polyurethane hardness and preparation method thereof) have special advantages and be subjected to thinking highly of of people, but when using as medical field, the reliable stickiness of the flexibility of feel and the surface of a wound, air permeable humidity retaining, hemostasis and hold back and receive the effect organize diffusate, avoiding adhesion and economy with wound still is urgently to get improved direction.
The chitin nonwoven that Chinese invention patent application publication number CN1600928A recommends is by the water-soluble chitosan fiber of 10-100 weight portion and the base fiber such as the cotton fiber of 0-90 weight portion, polyster fibre, viscose rayon and/or polypropylene fiber mixing obtain through acupuncture, this nonwoven is mainly used in makes disposable sanitary articles (the 6th page of final stage of specification), can not be suitable for medical field uses, because, as medical treatment use need have multiple synergistic as the aforementioned such as with the reliable stickiness of the surface of a wound, air permeable humidity retaining, hemostasis, absorptive tissue diffusate and prevent effect with the wound adhesion effectively.
The preparation method of chitin that invention patent mandate notification number CN101049515B provides and fibroin fiber blend wet nonwoven fabrics medical dressing is to be that chitin fiber of 10-20 part and the fibroin fiber of 2-10 part carry out proportioning with parts by weight, add 200-1000 part deionized water, fiber is pulled an oar after blend, add again that 0.01-1 part water-soluble high-molecular material (as sodium alginate, carboxymethyl cellulose, polyacrylic acid, polyacrylamide, polyethylene glycol or gelatin etc.) continues to discongest, homogenate and the moulding of manufacturing paper with pulp, drying obtains non-woven fabric medical dressing.There is following some shortcoming at least in the non-woven fabric medical dressing that this patent obtains: one, and the effect of chitin is difficult to give full play to, because patent combines chitin fiber and fibroin fiber together; Its two, be prone to adhesion phenomenon, though, when in use directly contacting, then can adhesion occur inevitably and increase patient's misery with surface of a wound skin because have excellent flexibility and intensity as the fibroin of polyolefin series fiber; Its three, with the affinity of surface of a wound shortcoming, because the fibroin fiber in the raw material does not have the effect of being close to the surface of a wound.
Shortcoming in view of above-mentioned prior art exists is necessary to be improved, and the applicant has done lasting and useful exploration for this reason, and technical scheme described below produces under this background.
Summary of the invention
The ability that top priority of the present invention is to provide a kind of and has good flexibility, can be close to the surface of a wound, air permeable humidity retaining is good, have comparatively desirable hemostasis and an absorptive tissue diffusate can prevent effectively that again too much diffusate from overflowing simultaneously, and can significantly promote the wound healing effect and avoid adhesion and alleviate three layers of compound nonwoven cloth of chitin of patient suffering.
Another task of the present invention is to provide the preparation method of three layers of compound nonwoven cloth of a kind of chitin, and this method need not to use special installation and technology is terse and can ensure comprehensive embodiment of the technique effect of three layers of compound nonwoven cloth of chitin.
A task more of the present invention is to provide the application of three layers of compound nonwoven cloth of a kind of chitin, be applied to medical field as Wound dressing, to embody with the ideal effect of excellence applying effect, air permeable humidity retaining effect, hemostasis and the absorptive tissue infiltration fluid of the surface of a wound, to prevent from too much to ooze out hydrorrhea to outside and promote Wound healing and avoid adhesion.
Top priority of the present invention is finished like this, three layers of compound nonwoven cloth of a kind of chitin, comprise chitin fiber layer of cloth, ES fiber layer of cloth and the viscose rayon layer of cloth between chitin fiber layer of cloth and ES fiber layer of cloth, chitin fiber layer of cloth, ES fiber layer of cloth and viscose rayon layer of cloth three are combined into one.
In a specific embodiment of the present invention, the grammes per square metre of described chitin fiber layer of cloth is 20-40g/ ㎡; The grammes per square metre of described ES fiber layer of cloth is 40-50g/ ㎡; The grammes per square metre of described viscose rayon layer of cloth is 190-210g/ ㎡.
In another specific embodiment of the present invention, the fiber number that constitutes the chitin fiber of described chitin fiber layer of cloth is 2.2-3.5dtex, and length is 40-80 ㎜; The fiber number that constitutes the ES fiber of described ES fiber layer of cloth is 1.6-3.0dtex, and length is 35-60 ㎜; The fiber number that constitutes the viscose rayon of described viscose rayon layer of cloth is 1.6-3.0dtex, and length is 35-60 ㎜.
Another task of the present invention is finished like this, the preparation method of three layers of compound nonwoven cloth of a kind of chitin, and this method may further comprise the steps:
A) preparation chitin fiber layer of cloth successively by opener shredding, carding machine combing and the lapping of lapping machine and by needing machine acupuncture, obtains the chitin fiber layer of cloth of on-woven with chitin fiber;
B) preparation ES fiber layer of cloth successively by opener shredding, carding machine combing and the lapping of lapping machine and by needing machine acupuncture, obtains the ES fiber layer of cloth of on-woven with the ES fiber;
C) compound, will be by the viscose rayon of opener shredding and carding machine combing by the lapping of lapping machine and through pre-needling, put on the chitin fiber layer of cloth viscose rayon layer of cloth shop that obtains pre-needling, the ES fiber cloth is placed on the viscose rayon layer of cloth of pre-needling again, close by the needing machine thorn, obtain three layers of compound nonwoven cloth of chitin that chitin fiber layer of cloth, ES fiber layer of cloth and the viscose rayon layer of cloth between chitin fiber layer of cloth and ES fiber layer of cloth constitute.
The speed of the needing machine acupuncture in another specific embodiment of the present invention, steps A) is 40-100 time/min.
Also have in the specific embodiment step C of the present invention) described in the needing machine thorn speed of closing be 300-600 time/min.
In another specific embodiment of the present invention, three layers of compound nonwoven cloth of chitin are made dressing and are used in medical treatment.
Three layers of compound nonwoven cloth of chitin provided by the invention have flexibility good, can be close to the surface of a wound, the ability of air permeable humidity retaining excellence, hemostasis and absorptive tissue infiltration fluid is strong can avoid too much penetrating simultaneously hydrorrhea again to extraneous, no adhesion and Wound healing strong point satisfactory for result; The method that provides can utilize traditional on-woven machinery to finish, and need not by means of special equipment, and can guarantee comprehensive embodiment of the technique effect of three layers of compound nonwoven cloth of chitin; The application that provides can embody the described technique effect of three layers of compound nonwoven cloth of chitin in medical treatment.
Description of drawings
Fig. 1 is the structure chart of three layers of compound nonwoven cloth of chitin of the present invention.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but to the description of embodiment all is not restriction to the present invention program, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Embodiment 1:
Ask for an interview Fig. 1, three layers of compound nonwoven cloth of chitin shown in Figure 1 by chitin fiber layer of cloth 1, ES fiber layer of cloth 2 and between chitin fiber layer of cloth 1 and ES fiber layer of cloth 2 viscose rayon layer of cloth 3 constitute, chitin fiber layer of cloth 1, ES fiber layer of cloth 2 and viscose rayon layer of cloth 3 threes close by the habitual needing machine thorn of on-woven machinery industry and become one.The ES of the ES fiber layer of cloth of being said here 2 is abbreviations of English full name " Ethylene-Propylene Side By Side ", and the ES fiber is a kind of of the polyolefin series fiber developed of the plain company of Japanese intelligence, as a kind of novel thermal bonding composite fibre.The ES fiber is a bicomponent sheath cored structure composite fibre, and cortical tissue's fusing point is low and have excellent flexibility, and sandwich layer is organized then fusing point height, the intensity height, and imbibition effect excellence has the good water effect of refusing, and the preparation method of three layers of compound nonwoven cloth of chitin is as follows:
A) preparation chitin fiber layer of cloth 1, the fiber number (industry also claims fineness) that will be obtained by commercially available channel is the chitin fiber of 40 ㎜ opener shredding, carding machine combing and the lapping of lapping machine generally used by on-woven production industry successively and by needing machine acupuncture for 2.2dtex and length, obtaining grammes per square metre is the chitin fiber layer of cloth 1 of the on-woven of 20g/ ㎡, wherein, the acupuncture speed of control needing machine is that 40 times/min(also claims 40 thorn/min when needing machine acupuncture, as follows), so that both ensured the entanglement effect between the fiber, avoided undermining fiber again;
B) preparation ES fiber layer of cloth 2, the fiber number (also claiming fineness) that will be obtained by commercially available channel is the ES fiber of 50 ㎜ opener shredding, carding machine combing and the lapping of lapping machine generally used through on-woven production industry successively and by needing machine acupuncture, obtaining grammes per square metre is the ES fiber layer of cloth 2 of the on-woven of 40g/ ㎡ for 3.0dtex and length;
C) compound, to be that 1.6dtex and length are the opener shredding that the viscose rayon of 35 ㎜ is used by the on-woven production usage of trade successively by the fiber number of commercially available channel acquisition, carding machine combing and the lapping of lapping machine and by the needing machine pre-needling, the viscose rayon layer of cloth 3(that obtains grammes per square metre and be the pre-needling of 190g/ ㎡ plays the liquid-adsorption layer effect), viscose rayon layer of cloth 3 shop of pre-needling is put by steps A) on the chitin fiber layer of cloth 1 that obtains, again will be by step B) ES fiber layer of cloth 2 shops that obtain put through on the viscose rayon layer of cloth 3 of pre-needling, that is to say and make viscose rayon layer of cloth 3 between chitin fiber layer of cloth 1 and ES fiber layer of cloth 2, form three-decker just as sandwich style, specifically: after viscose rayon is implemented pre-needling, chitin fiber layer of cloth 1 is placed the upper strata (top) of putting cloth holder (also title moves back cloth holder), ES fiber layer of cloth 2 is placed the lower floor of putting cloth holder, to the viscose rayon pre-needling time, the viscose rayon layer of cloth 3 of pre-needling is passed from the intermediate layer of putting cloth holder, thereby finish the superimposed each other of viscose rayon layer of cloth 3 and chitin fiber layer of cloth 1 and ES fiber layer of cloth 2, preferably (go up thorn simultaneously by needing machine, following thorn, last thorn and following thorn) sting and close, the three is combined as a whole reliably, the speed (industry also claims frequency) that the needing machine thorn closes is 300 times/min, depth of needling is 10-15 ㎜, and obtaining total grammes per square metre is three layers of compound nonwoven cloth of chitin of 250g/ ㎡.
Application examples is a purposes:
Three layers of compound nonwoven cloth of chitin that embodiment 1 is obtained use as Wound dressing in medical treatment, and chitin fiber layer of cloth 1 is contacted with patient's wound, can ensure all technique effects in the applicant technique effect hurdle in front.
Embodiment 2:
Only with steps A) in the fiber number and the length of chitin fiber change 2.5dtex and 45 ㎜ respectively into, the grammes per square metre of chitin fiber layer of cloth 1 changes 30g/ ㎡ into, acupuncture speed changes 60 times/min into; Only with step B) in the fiber number and the length of ES fiber change 1.6dtex and 60 ㎜ respectively into, the grammes per square metre of ES fiber layer of cloth 2 changes 50g/ ㎡ into; Only with step C) in the fiber number and the length of viscose rayon change 3.0dtex and 45 ㎜ respectively into, the grammes per square metre of viscose rayon layer of cloth 3 changes 200g/ ㎡ into; The speed that the needing machine thorn closes changes 400 times/min into, and obtaining total grammes per square metre is three layers of compound nonwoven cloth of chitin of 280g/ ㎡, and all the other are all with the description to embodiment 1.
Embodiment 3:
Only with steps A) in the fiber number and the length of chitin fiber change 3.0dtex and 50 ㎜ respectively into, the grammes per square metre of chitin fiber layer of cloth 1 changes 40g/ ㎡ into, acupuncture speed changes 80 times/min into; Only with step B) in the fiber number and the length of ES fiber change 2.5dtex and 40 ㎜ respectively into, the grammes per square metre of ES fiber layer of cloth 2 changes 60g/ ㎡ into; Only with step C) in the fiber number and the length of viscose rayon change 2.0dtex and 60 ㎜ respectively into, the grammes per square metre of viscose rayon layer of cloth 3 changes 210g/ ㎡ into; The speed that the needing machine thorn closes changes 500 times/min into, and obtaining total grammes per square metre is three layers of compound nonwoven cloth of chitin of 310g/ ㎡, and all the other are all with the description to embodiment 1.
Embodiment 4:
Only with steps A) in the fiber number and the length of chitin fiber change 3.5dtex and 55 ㎜ respectively into, the grammes per square metre of chitin fiber layer of cloth 1 changes 35g/ ㎡ into, acupuncture speed changes 100 times/min into; Only with step B) in the fiber number and the length of ES fiber change 2dtex and 35 ㎜ respectively into, the grammes per square metre of ES fiber layer of cloth 2 changes 60g/ ㎡ into; Only with step C) in the fiber number and the length of viscose rayon change 2.5dtex and 40 ㎜ respectively into, the grammes per square metre of viscose rayon layer of cloth 3 changes 215g/ ㎡ into; The speed that the needing machine thorn closes changes 600 times/min into, and obtaining total grammes per square metre is three layers of compound nonwoven cloth of chitin of 310g/ ㎡, and all the other are all with the description to embodiment 1.
Embodiment 5:
Only with steps A) in the fiber number and the length of chitin fiber change 2.8dtex and 80 ㎜ respectively into, the grammes per square metre of chitin fiber layer of cloth 1 changes 25g/ ㎡ into, acupuncture speed changes 70 times/min into; Only with step B) in the fiber number and the length of ES fiber change 2.0dtex and 45 ㎜ respectively into, the grammes per square metre of ES fiber layer of cloth 2 changes 55g/ ㎡ into; Only with step C) in the fiber number and the length of viscose rayon change 2.8dtex and 55 ㎜ respectively into, the grammes per square metre of viscose rayon layer of cloth 3 changes 195g/ ㎡ into; The speed that the needing machine thorn closes changes 450 times/min into, and obtaining total grammes per square metre is three layers of compound nonwoven cloth of chitin of 275g/ ㎡, and all the other are all with the description to embodiment 1.
Claims (7)
1. three layers of compound nonwoven cloth of a chitin, it is characterized in that comprising chitin fiber layer of cloth (1), ES fiber layer of cloth (2) and be positioned at chitin fiber layer of cloth (1) and ES fiber layer of cloth (2) between viscose rayon layer of cloth (3), chitin fiber layer of cloth (1), ES fiber layer of cloth (2) and viscose rayon layer of cloth (3) three are combined into one.
2. three layers of compound nonwoven cloth of chitin according to claim 1 and 2, the grammes per square metre that it is characterized in that described chitin fiber layer of cloth (1) is 20-40g/ ㎡; The grammes per square metre of described ES fiber layer of cloth (2) is 40-50g/ ㎡; The grammes per square metre of described viscose rayon layer of cloth (3) is 190-210g/ ㎡.
3. three layers of compound nonwoven cloth of chitin according to claim 1, the fiber number that it is characterized in that constituting the chitin fiber of described chitin fiber layer of cloth (1) is 2.2-3.5dtex, length is 40-80 ㎜; The fiber number that constitutes the ES fiber of described ES fiber layer of cloth (2) is 1.6-3.0dtex, and length is 35-60 ㎜; The fiber number that constitutes the viscose rayon of described viscose rayon layer of cloth (3) is 1.6-3.0dtex, and length is 35-60 ㎜.
4. the preparation method of three layers of compound nonwoven cloth of a chitin as claimed in claim 1 is characterized in that this method may further comprise the steps:
A) preparation chitin fiber layer of cloth (1) successively by opener shredding, carding machine combing and the lapping of lapping machine and by needing machine acupuncture, obtains the chitin fiber layer of cloth (1) of on-woven with chitin fiber;
B) preparation ES fiber layer of cloth (2) successively by opener shredding, carding machine combing and the lapping of lapping machine and by needing machine acupuncture, obtains the ES fiber layer of cloth (2) of on-woven with the ES fiber;
C) compound, will be by the viscose rayon of opener shredding and carding machine combing by the lapping of lapping machine and through pre-needling, put on chitin fiber layer of cloth (1) viscose rayon layer of cloth (2) shop that obtains pre-needling, ES fiber layer of cloth (2) is placed on the viscose rayon layer of cloth (2) of pre-needling again, close by needing machine thorn, obtain chitin fiber layer of cloth (1), ES fiber layer of cloth (2) and be positioned at chitin fiber layer of cloth (1) and ES fiber layer of cloth (2) between three layers of compound nonwoven cloth of chitin of viscose rayon layer of cloth (3) formation.
5. the preparation method of three layers of compound nonwoven cloth of chitin according to claim 4 is characterized in that steps A) described in the speed of needing machine acupuncture be 40-100 time/min.
6. the preparation method of three layers of compound nonwoven cloth of chitin according to claim 4 is characterized in that step C) described in the needing machine thorn speed of closing be 300-600 time/min.
7. the application of three layers of compound nonwoven cloth of a chitin as claimed in claim 1 is characterized in that three layers of compound nonwoven cloth of chitin make dressing and use in medical treatment.
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| CN102600666A (en) * | 2012-03-27 | 2012-07-25 | 绍兴文理学院 | Filtering composite layer and application method used for incoming-reservoir water flow filtering |
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| CN102764174A (en) * | 2012-07-13 | 2012-11-07 | 苏州艾美医疗用品有限公司 | Medical polymer non-woven fabric splint and preparation method thereof |
| CN102806733A (en) * | 2012-07-30 | 2012-12-05 | 山东俊富无纺布有限公司 | Composite non-woven thermal material and manufacturing method thereof |
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| CN102600666B (en) * | 2012-03-27 | 2014-05-21 | 绍兴文理学院 | Filtering composite layer and application method used for incoming-reservoir water flow filtering |
| CN102626573A (en) * | 2012-03-27 | 2012-08-08 | 绍兴文理学院 | Filter composite layer and filter blocking net, and application method thereof |
| CN102600666A (en) * | 2012-03-27 | 2012-07-25 | 绍兴文理学院 | Filtering composite layer and application method used for incoming-reservoir water flow filtering |
| CN102626573B (en) * | 2012-03-27 | 2015-04-22 | 绍兴文理学院 | Filter composite layer and filter blocking net, and application method thereof |
| CN102764174A (en) * | 2012-07-13 | 2012-11-07 | 苏州艾美医疗用品有限公司 | Medical polymer non-woven fabric splint and preparation method thereof |
| CN102806733A (en) * | 2012-07-30 | 2012-12-05 | 山东俊富无纺布有限公司 | Composite non-woven thermal material and manufacturing method thereof |
| CN102806733B (en) * | 2012-07-30 | 2014-09-24 | 山东俊富无纺布有限公司 | Composite non-woven thermal material and manufacturing method thereof |
| CN103126806A (en) * | 2012-11-29 | 2013-06-05 | 佛山市优特医疗科技有限公司 | High-wet-strength wound dressing |
| CN103590191A (en) * | 2013-11-08 | 2014-02-19 | 江苏丹毛纺织股份有限公司 | Far infrared non-glue cotton and manufacturing method thereof |
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Application publication date: 20111026 |