CN103110477B - Manufacturing method of composite medical non-woven fabric absorbent pads - Google Patents
Manufacturing method of composite medical non-woven fabric absorbent pads Download PDFInfo
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- CN103110477B CN103110477B CN201310058375.9A CN201310058375A CN103110477B CN 103110477 B CN103110477 B CN 103110477B CN 201310058375 A CN201310058375 A CN 201310058375A CN 103110477 B CN103110477 B CN 103110477B
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Abstract
The invention relates to a manufacturing method of composite medical non-woven fabric absorbent pads and belongs to the field of preparation of medical dressing. The manufacturing method includes steps of feeding medical non-toxic polyethylene particles into a screw extruder to fuse and extrude, forming a film through curtain coating, rolling to form anti-adhesive holes, cooling and winding to obtain a medical non-toxic polyethylene film used as an anti-adhesive layer; subjecting blended fibers blended by viscose fibers and high-absorbent fibers to opening by an opener, carding by a carding machine, lapping by a lapping machine and needling by a needle machine, and obtaining non-woven fabric used as a liquid absorbent layer; feeding polyurethane particles into the screw extruder to fuse and extrude, and forming a film by curtain coating, cooling and winding to obtain a polyurethane film used as a waterproof breathable layer; subjecting the anti-adhesive layer and one surface of the liquid absorbent layer to thermal compositing, and subjecting the waterproof breathable layer and the other surface of the liquid absorbent layer to thermal compositing to obtain a composite medical non-woven fabric absorbent pad. The manufacturing method of the composite medical non-woven fabric absorbent pads has the advantages that liquid absorbent quantity is high, leakage to the outside is prevented, contact area of the skin can be remarkably decreased, handling time of medical staff can be shortened, and technical steps are few.
Description
Technical field
The invention belongs to medical dressing preparing technical field, be specifically related to a kind of preparation method of medical composite non-woven cloth adsorptive pads.
Background technology
In people's daily life, often can meet with all kinds of hemorrhagic wounds, for minor cut or wound, directly with adhesive bandage, be affixed on wound, for large wound, need to be cleaned a wound by the medical worker of hospital, and carry out disinfection, then with gauze wrapping, or stick all kinds of applying ointment or plaster.But the dressing in prior art is as adhesive bandage, gauze or apply ointment or plaster and when bleeding amount of wound is larger, tend to the seepage situation that occurs that blood sees through gauze or applies ointment or plaster, especially, when wound healing easily and the dressing such as gauze stick together, so, when wound healing and when removing gauze, can cause patient's pain, even cause secondary hemorrhage.
In published Chinese patent literature, be no lack of the technical information that is seen in medical dressing, slightly with exemplify as Granted publication CN2438436Y(broad-spectrum antibiotic plaster), the method for designing of a CN1291704C(incision applicator for postoperation), CN2696662Y(incision applicator for postoperation), CN200960223Y(self-adhesive germ free applying strapping), mono-kind of CN201572340U(can medicine adding plaster), CN201879911U(Self-bonding medical plaster), publication No. CN102166370A(protects wound and applies ointment or plaster and preparation technology), CN202122720U(plaster), CN202235923U(medical application), publication No. CN102267266A(ventilated membrane for warm subsides, its preparation method and application), CN202173511U(is for the protective plaster of the interim nursing of wound), CN2512411Y(nano active carbon fibre medical dressing), CN2240347Y(antiseptic nonwoven fabric medical dressing), CN202605131U(carbon fiber nanometer silver non-woven fabric medical dressing), CN2313563Y(Medical sterilized dressing) and publication number CN1381275A(medical composite non-woven cloth), etc.The disclosed medical dressing of these patents that is not limited to exemplify all belongs to band pharmic function dressing or claims therapeutic dressing, thereby does not belong to medical adsorptive pads category.
The technical information that belongs to medical adsorptive pads category can be seen in equally in Chinese patent literature; as CN201308581Y recommends to have " medical application with multilayer water absorption structure "; this patent consists of four layers of water accepting layer and one deck protection leaching membrane paper; ground floor water entry (specifically can referring to Instructions Page 2 the 4th to 8 row of this patent) in upper and lower two-layer nonwoven; when this patent structure removes after patient's wound healing or in patient treatment process, changing while applying ointment or plaster, can there is with wound the anxiety of adhesion in protection leaching membrane paper." Medical non-woven fabric mat towel " that " medical application " that and for example CN202136483U provides and CN201642330U introduce is equally because structure is lost the anxiety rationally in use existing with wound adhesion.
In view of above-mentioned prior art, be necessary to explore rational preparation method and make the non-woven fabrics adsorptive pads obtaining eliminate aforesaid defect, for this reason, the applicant has done useful design, has finally formed technical scheme described below.
Summary of the invention
Task of the present invention is to provide a kind of processing step brief and use the preparation method that meets the medical composite non-woven cloth adsorptive pads that industrial amplification production requires, and the medical composite non-woven cloth adsorptive pads being obtained by the method contributes to enlarge markedly imbibition ability and uses and avoid to extraneous seepage, be conducive to prevent from using with wound adhesion and conveniently remove and avoid to cause pain and even cause secondary hemorrhage and be of value to and embody fast haemostatic effect and use the Deal with Time that shortens medical worker to patient.
Task of the present invention completes like this, and a kind of preparation method of medical composite non-woven cloth adsorptive pads, comprises the following steps:
A) prepare antiblocking layers, medical poisonless level polyethylene particle material is dropped in screw extruder and melt extrudes and through casting film-forming, roll compacting, go out anti hole, cooling and rolling successively, obtain the medical poisonless level polyethylene film as antiblocking layers;
B) prepare liquid-adsorption layer, the composite fibre that the high water-absorption fiber that is 10-50 part with parts by weight by the viscose rayon that is 50-90 part by parts by weight mixes mutually, successively through opener shredding, carding machine combing, lapping machine lapping and needing machine acupuncture, obtains the non-woven fabrics as liquid-adsorption layer;
C) prepare waterproof ventilative layer, polyurethane particles material is dropped in screw extruder and melt extrudes and successively through casting film-forming, cooling and rolling, obtain the polyurethane film as waterproof ventilative layer;
D) compound, first by by steps A) antiblocking layers that obtains with by step B) side surface of the liquid-adsorption layer that obtains heats compound, again by by step C) waterproof ventilative layer obtaining and the opposite side surface of liquid-adsorption layer heat compoundly, obtains medical composite non-woven cloth adsorptive pads.
In a specific embodiment of the present invention, the grammes per square metre of described antiblocking layers is 15-20g/ ㎡; The grammes per square metre of described liquid-adsorption layer is 90-300g/ ㎡; The thickness of described waterproof ventilative layer is 0.025-0.04 ㎜.
In another specific embodiment of the present invention, described anti hole is equilateral triangle hole, and the length of side on this equilateral each tri-angle-holed limit is 0.1-0.4 ㎜.
In another specific embodiment of the present invention, the described melt temperature melt extruding is 110-125 ℃.
In another specific embodiment of the present invention, the punch frequency of described needing machine acupuncture is 500-800 thorn/min.
Of the present invention, also have in a specific embodiment, the compound combined temp of described heating is 110-120 ℃.
Technical scheme provided by the invention is due to using polyurethane film as waterproof ventilative layer and using non-woven fabrics as liquid-adsorption layer, thereby it is large and prevent the effect to extraneous seepage to play liquid absorption; Due to using the medical poisonless level polyethylene film with anti hole as antiblocking layers, thereby can significantly reduce the contact area of skin, while removing, not only can not cause pain to patient after wound healing, and can avoid undermining the skin at wound place and avoid causing secondary bleeding, in addition can effectively shorten medical worker's Deal with Time, it is few and met the strong point that industrial amplification production requires that preparation method has processing step.
Accompanying drawing explanation
Fig. 1 is the structure chart of the medical composite non-woven cloth adsorptive pads that obtains of the inventive method.
The specific embodiment
Embodiment 1:
Refer to Fig. 1, provided medical adhesive-bonded fabric adsorptive pads, its structure is as follows: be included in the antiblocking layers 1 that contacts for the wound with patient (also can be described as " wound ") under using state, under using state waterproof ventilative layer 2 and the liquid-adsorption layer 3 between antiblocking layers 1 and waterproof ventilative layer 2 outward, the step of medical adhesive-bonded fabric adsorptive pads of preparing this structure is as follows:
A) prepare antiblocking layers, medical poisonless level polyethylene (english abbreviation is " PE ") particulate material is dropped in screw extruder and melt extruded, wherein: the melt temperature while melt extruding is 125 ℃, after melt extruding, screw extruder through casting filming therapy film forming, roll compacting, goes out anti hole 11, cooling and rolling successively, obtain the medical poisonless level polyethylene film as antiblocking layers 1, the grammes per square metre that this medical poisonless level polyethylene film is antiblocking layers 1 is 15g/ ㎡, and aforesaid anti hole 11 is equilateral triangle hole, the length of side on each limit is 0.25 ㎜;
B) prepare liquid-adsorption layer, by 70 parts of viscose rayons by taking by weight with 30 parts of composite fibre of mixing mutually of the high water-absorption fiber taking by weight successively through opener shredding, carding machine combing, lapping machine lapping and needing machine acupuncture, obtain the non-woven fabrics as liquid-adsorption layer 3, wherein, the punch frequency of needing machine is 500 thorns/min, the grammes per square metre of non-woven fabrics is that the grammes per square metre of liquid-adsorption layer 3 is 120g/ ㎡, it is YZ-I hydrophilic fibers that high water-absorption fiber described in this step is preferably used the trade mark of widely being sold in market before the application proposes by Chinese Shanghai Xin Hu fiber trade Co., Ltd,
C) prepare waterproof ventilative layer, polyurethane particles material is dropped in screw extruder and melt extruded, wherein: the melt temperature while melt extruding is 125 ℃, after screw extruder melt extrudes successively through casting filming therapy film forming, cooling and rolling, obtain the polyurethane film as waterproof ventilative layer 2, in this step, the thickness of polyurethane film is that the thickness of waterproof ventilative layer 2 is 0.025 ㎜;
D) compound, first by by steps A) antiblocking layers 1 that obtains with by step B) side surface of the liquid-adsorption layer 3 that obtains heats compound, again will be by step C) waterproof ventilative layer 2 that obtains is compound with the opposite side surface heating of liquid-adsorption layer 3, heating compound combined temp is 110 ℃, obtain medical composite non-woven cloth adsorptive pads, this medical composite non-woven cloth adsorptive pads is suitable as adhesive bandage.
Embodiment 2:
Only by steps A) in melt temperature change 110 ℃ into, change the grammes per square metre of antiblocking layers 1 into 20g/ ㎡, the length of side in anti hole 11 changes 0.4 ㎜ into; By step B) in the parts by weight of viscose rayon change 90 parts into, change the parts by weight of high water-absorption fiber into 10 parts, change the punch frequency of needing machine into 650 thorns/min, change the grammes per square metre of liquid-adsorption layer 3 into 300g/ ㎡; By step C) in melt temperature change 110 ℃ into, change the thickness of waterproof ventilative layer 2 into 0.04 ㎜; By step D) in combined temp change 120 ℃ into.The medical adhesive-bonded fabric adsorptive pads obtaining is suitable as postoperative applying ointment or plaster, and all the other are all with the description to embodiment 1.
Embodiment 3:
Only by steps A) in melt temperature change 120 ℃ into, change the grammes per square metre of antiblocking layers 1 into 18g/ ㎡, the length of side in anti hole 11 changes 0.25 ㎜ into; By step B) in the parts by weight of viscose rayon change 50 parts into, change the parts by weight of high water-absorption fiber into 50 parts, change the punch frequency of needing machine into 800 thorns/min, change the grammes per square metre of liquid-adsorption layer 3 into 200g/ ㎡; By step C) in melt temperature change 120 ℃ into, change the thickness of waterproof ventilative layer 2 into 0.03 ㎜; By step D) in combined temp change 115 ℃ into.The medical adhesive-bonded fabric adsorptive pads obtaining is suitable as postoperative applying ointment or plaster, and all the other are all with the description to embodiment 1.
Embodiment 4:
Only by steps A) in melt temperature change 115 ℃ into, change the grammes per square metre of antiblocking layers 1 into 16g/ ㎡, the length of side in anti hole 11 changes 0.3 ㎜ into; By step B) in the parts by weight of viscose rayon change 60 parts into, change the parts by weight of high water-absorption fiber into 40 parts, change the punch frequency of needing machine into 700 thorns/min, change the grammes per square metre of liquid-adsorption layer 3 into 90g/ ㎡; By step C) in melt temperature change 115 ℃ into, change the thickness of waterproof ventilative layer 2 into 0.035 ㎜; By step D) in combined temp change 118 ℃ into.All the other are all with the description to embodiment 1.
Claims (6)
1. a preparation method for medical composite non-woven cloth adsorptive pads, is characterized in that comprising the following steps:
A) prepare antiblocking layers, medical poisonless level polyethylene particle material is dropped in screw extruder and melt extrudes and through casting film-forming, roll compacting, go out anti hole (11), cooling and rolling successively, obtain the medical poisonless level polyethylene film as antiblocking layers (1);
B) prepare liquid-adsorption layer, the composite fibre that the high water-absorption fiber that is 10-50 part with parts by weight by the viscose rayon that is 50-90 part by parts by weight mixes mutually, successively through opener shredding, carding machine combing, lapping machine lapping and needing machine acupuncture, obtains the non-woven fabrics as liquid-adsorption layer (3);
C) prepare waterproof ventilative layer, polyurethane particles material is dropped in screw extruder and melt extrudes and successively through casting film-forming, cooling and rolling, obtain the polyurethane film as waterproof ventilative layer (2);
D) compound, first by by steps A) antiblocking layers (1) that obtains with by step B) side surface of the liquid-adsorption layer (3) that obtains heats compound, again by by step C) waterproof ventilative layer (2) obtaining and the opposite side surface of liquid-adsorption layer (3) heat compoundly, obtains medical composite non-woven cloth adsorptive pads.
2. the preparation method of medical composite non-woven cloth adsorptive pads according to claim 1, is characterized in that the grammes per square metre of described antiblocking layers (1) is 15-20g/ ㎡; The grammes per square metre of described liquid-adsorption layer (3) is 90-300g/ ㎡; The thickness of described waterproof ventilative layer (2) is 0.025-0.04 ㎜.
3. the preparation method of medical composite non-woven cloth adsorptive pads according to claim 1, it is characterized in that described anti hole (11) is equilateral triangle hole, and the length of side on this equilateral each tri-angle-holed limit is 0.1-0.4 ㎜.
4. the preparation method of medical composite non-woven cloth adsorptive pads according to claim 1, is characterized in that steps A) and step C) described in the melt temperature melt extruding be 110-125 ℃.
5. the preparation method of medical composite non-woven cloth adsorptive pads according to claim 1, is characterized in that the punch frequency of described needing machine acupuncture is 500-800 thorn/min.
6. the preparation method of medical composite non-woven cloth adsorptive pads according to claim 1, is characterized in that the described compound combined temp of heating is 110-120 ℃.
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| CN201310058375.9A CN103110477B (en) | 2013-02-25 | 2013-02-25 | Manufacturing method of composite medical non-woven fabric absorbent pads |
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| CN201310058375.9A CN103110477B (en) | 2013-02-25 | 2013-02-25 | Manufacturing method of composite medical non-woven fabric absorbent pads |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272296A (en) * | 2013-06-16 | 2013-09-04 | 褚加冕 | Method for making special dressing for hemodialysis tube pad |
| CN103861144B (en) * | 2014-04-04 | 2016-06-08 | 杭州天诚药业有限公司 | Promote medical dressing and its preparation method of wound healing |
| CN104589559B (en) * | 2014-12-01 | 2017-08-22 | 杭州绿兴环保材料有限公司 | A kind of ultra-thin polyurethane-hot melt gum resin film processing technology |
| CN106178071A (en) * | 2015-05-08 | 2016-12-07 | 上海宏创医疗科技有限公司 | A kind of superabsorbent water dressing and preparation method thereof |
| CN105030418A (en) * | 2015-06-24 | 2015-11-11 | 吴江富凯医用卫生用品有限公司 | Absorbent pad for bandages |
| CN108162522A (en) * | 2017-12-15 | 2018-06-15 | 合肥普尔德医疗用品有限公司 | A kind of medical non-woven fabrics composite material and preparation method and application |
| CN111267416B (en) * | 2020-02-10 | 2022-04-05 | 江西优禾科技有限公司 | Adult's pad piece of cloth of preventing and treating bedsore |
| CN111775537A (en) * | 2020-05-22 | 2020-10-16 | 沈百荣 | Processing method of medical water absorption pad material |
| CN115068351A (en) * | 2022-07-08 | 2022-09-20 | 上海佩威网络科技有限公司 | Membrane cloth for eye mask and manufacturing process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119547A (en) * | 1995-07-28 | 1996-04-03 | 中国纺织科学研究院 | Method for preparation of biofunctional medical adhesive-bonded fabric dressing and its products |
| CN201586120U (en) * | 2009-05-26 | 2010-09-22 | 稳健实业(深圳)有限公司 | Medical dressing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060035055A1 (en) * | 2004-08-10 | 2006-02-16 | The Procter & Gamble Company | Elastomeric nonwoven laminates and process for producing same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119547A (en) * | 1995-07-28 | 1996-04-03 | 中国纺织科学研究院 | Method for preparation of biofunctional medical adhesive-bonded fabric dressing and its products |
| CN201586120U (en) * | 2009-05-26 | 2010-09-22 | 稳健实业(深圳)有限公司 | Medical dressing |
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