CN203651110U - Composite polyurethane nonwoven cloth and plaster patch - Google Patents
Composite polyurethane nonwoven cloth and plaster patch Download PDFInfo
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- CN203651110U CN203651110U CN201320889122.1U CN201320889122U CN203651110U CN 203651110 U CN203651110 U CN 203651110U CN 201320889122 U CN201320889122 U CN 201320889122U CN 203651110 U CN203651110 U CN 203651110U
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- polyurethane
- nonwoven
- cloth
- nonwoven cloth
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Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 154
- 239000004814 polyurethane Substances 0.000 title claims abstract description 154
- 239000004744 fabric Substances 0.000 title claims abstract description 106
- 239000002131 composite material Substances 0.000 title abstract description 7
- 239000011505 plaster Substances 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 claims description 75
- 239000003814 drug Substances 0.000 claims description 54
- 239000000203 mixture Substances 0.000 claims description 24
- 239000003292 glue Substances 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 10
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 239000004750 melt-blown nonwoven Substances 0.000 claims description 2
- 239000012466 permeate Substances 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 18
- 230000035699 permeability Effects 0.000 description 13
- 238000004078 waterproofing Methods 0.000 description 12
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000002674 ointment Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000006187 pill Substances 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 229920006264 polyurethane film Polymers 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229940098465 tincture Drugs 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 208000014617 hemorrhoid Diseases 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 235000019082 Osmanthus Nutrition 0.000 description 1
- 241000333181 Osmanthus Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 208000028990 Skin injury Diseases 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Abstract
The utility model provides composite polyurethane nonwoven cloth and a plaster patch. The composite polyurethane nonwoven cloth comprises a nonwoven cloth layer and a polyurethane layer arranged on one side of the nonwoven cloth layer. The composite polyurethane nonwoven cloth is characterized in that the polyurethane layer comprises a polyurethane body layer and a polyurethane interface layer which partially permeates into the nonwoven cloth layer and is solidified in the nonwoven cloth layer. According to the composite polyurethane nonwoven cloth, the force of bonding between the polyurethane layer and the nonwoven cloth layer is very high. In addition, the composite polyurethane nonwoven cloth is good in breathability, waterproofness, oilproofness and elasticity.
Description
Technical field
The utility model relates to medical field, relates in particular to a kind of polyurethane compound nonwoven cloth and patch.
Background technology
Patch generally can be by being coated directly onto medicine glue mixture (mixture of medicament and medical adhesive) on the nonwoven with backing and making,, the grease containing in medicament may ooze out from the backing surface of patch, the clothes of the sufferer of making dirty.Therefore, there are some patch to be compound to the problem that solves sepage on nonwoven using medical polyurethane film as backing.
For example, but polyurethane film is conventionally difficult to and other materials (nonwoven backing) combines, generally can only polyurethane film and nonwoven be combined by external force such as gluing or hot pressing.By the polyurethane compound nonwoven cloth of the external force combinations such as gluing or hot pressing, the adhesion deficiency between its polyurethane film and nonwoven, its polyurethane film usually can split away off from nonwoven.
Therefore, develop a kind of new polyurethane compound nonwoven cloth, not only the adhesion between its layer of polyurethane and nonwoven layer is very high, and this polyurethane compound nonwoven cloth also has good gas permeability, water proofing property, grease proofness and elasticity, has important practical significance.
Utility model content
The utility model is intended to overcome or alleviates above-mentioned existing at least one or more technical problem of existing in technology of making.
Therefore, at least one object of the present utility model is to provide a kind of polyurethane compound nonwoven cloth, and the adhesion between its layer of polyurethane and nonwoven layer is very high.
According to an aspect of the present utility model, the utility model provides a kind of polyurethane compound nonwoven cloth, comprising: nonwoven layer; With the layer of polyurethane that is arranged on described nonwoven layer one side; It is characterized in that, described layer of polyurethane comprises that polyurethane body layer and part are penetrated into polyurethane interface layer curing in described nonwoven layer and in described nonwoven layer.
According to some preferred embodiment of the present utility model, described layer of polyurethane is thermoplastic urethane layers.
According to some preferred embodiment of the present utility model, it is characterized in that, the average thickness of described layer of polyurethane is 20-50 μ m.
According to some preferred embodiment of the present utility model, described nonwoven layer is selected from the one in following group: elastomeric nonwoven layer of cloth, spun-bonded non-woven fabrics layer and melt-blown nonwoven layer of cloth.
According to some preferred embodiment of the present utility model, described elastomeric nonwoven layer of cloth is selected from the one in following group: unidirectional elastomeric nonwoven layer of cloth, bidirectional elastic nonwoven layer and multidirectional elastomeric nonwoven layer of cloth.
According to some preferred embodiment of the present utility model, described elastomeric nonwoven layer of cloth is the multidirectional elastomeric nonwoven layer of cloth of polypropylene.
According to some preferred embodiment of the present utility model, the average thickness of described nonwoven layer is 0.1-0.3mm.
The polyurethane compound nonwoven cloth that the utility model provides, the adhesion between its layer of polyurethane and nonwoven layer is very high, and in addition, this polyurethane compound nonwoven cloth also has good gas permeability, water proofing property, grease proofness and elasticity.
According to another aspect of the present utility model, the utility model also provides a kind of patch, comprise: the polyurethane compound nonwoven cloth providing according to the utility model and medicine glue mixture layer, described medicine glue mixture layer is arranged in the nonwoven layer of described polyurethane compound nonwoven cloth.
According to some preferred embodiment of the present utility model, described patch also comprises release layer, and described release layer is arranged on that contrary side of the side with described nonwoven layer is set of described medicine glue mixture layer.
According to some preferred embodiment of the present utility model, described release layer is selected from the one in following group: papery release layer, PETG release layer and polyethylene release layer.
The patch that the utility model provides, the adhesion between its layer of polyurethane and nonwoven layer is very high, and in addition, this patch also has good gas permeability, water proofing property, grease proofness, elasticity and viscosity.
Other utility model object that the utility model can be realized and other technique effect that can obtain will be set forth in conjunction with the description to specific embodiment and the signal of accompanying drawing in the following specific embodiment.
Accompanying drawing explanation
For above-mentioned and other object of the present utility model, feature and advantage can more be become apparent, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of polyurethane compound nonwoven cloth (comprising layer of polyurethane and nonwoven layer) of providing according to some preferred embodiment of the present utility model;
Fig. 2 is the structural representation of a kind of patch (comprising layer of polyurethane, nonwoven layer and medicine glue mixture layer) of providing according to some preferred embodiment of the present utility model.
Fig. 3 is the structural representation of a kind of patch (comprising layer of polyurethane, nonwoven layer, medicine glue mixture layer and release layer) of providing according to some preferred embodiment of the present utility model.
The specific embodiment
Describe specific embodiment of the utility model below in detail, the example of described specific embodiment is shown in the drawings, and wherein identical label represents same or analogous element from start to finish.The specific embodiment of describing below with reference to accompanying drawing is exemplary, is intended to explain the utility model, and can not be interpreted as a kind of restriction of the present utility model.
Except as otherwise noted, otherwise all numerals of representation feature size, quantity and the physical characteristic used in this description and claim be all construed as in all cases and all modified by term " about ".Therefore, unless indicated to the contrary, otherwise the numerical parameter of listing in above-mentioned description and appended claims is all approximations, those skilled in the art can utilize instruction content disclosed herein to seek the desirable characteristics obtaining, these approximations of appropriate change.The use of the number range representing with end points comprises all numerals within the scope of this and any scope within the scope of this, and for example, 1 to 5 comprises 1,1.1,1.3,1.5,2,2.75,3,3.80,4 and 5 etc.
polyurethane compound nonwoven cloth
According to an aspect of the present utility model, referring to Fig. 1, the utility model provides a kind of polyurethane compound nonwoven cloth 100, comprising: nonwoven layer 20; With the layer of polyurethane 10 that is arranged on described nonwoven layer 20 1 sides; It is characterized in that, described layer of polyurethane comprises that polyurethane body layer 12 and part are penetrated into polyurethane interface layer 11 curing in described nonwoven layer 20 and in described nonwoven layer 20.
According to some preferred embodiment of the present utility model, can prepare described polyurethane compound nonwoven cloth by be coated with one deck liquid polyurethane or polyurethane solutions on nonwoven.Because liquid polyurethane or polyurethane solutions have mobility, permeability and levelability, so in the time enough liquid polyurethanes or polyurethane solutions being applied to nonwoven layer surperficial, no matter what kind of configuration of surface is nonwoven layer have, liquid polyurethane or polyurethane solutions can fully contact with the surface of nonwoven layer, and have operative liquid polyurethane or polyurethane solutions can be penetrated in nonwoven layer.When being coated on nonwoven layer surface and being penetrated into liquid polyurethane in nonwoven layer or after polyurethane solutions solidifies, can obtain a polyurethane compound nonwoven cloth, this polyurethane compound nonwoven cloth 100 comprises a nonwoven layer 20 and the layer of polyurethane 10 that is arranged on described nonwoven layer 20 1 sides, and this layer of polyurethane 10 comprises that polyurethane body layer 12 and part are penetrated into polyurethane interface layer 11 curing in described nonwoven layer 20 and in described nonwoven layer 20.The polyurethane compound nonwoven cloth 100 obtaining in this way, adhesion between its layer of polyurethane 10 and nonwoven layer 20 is very high, both this polyurethane compound nonwoven cloth is intactly separated into independent layer of polyurethane and independent nonwoven layer by the mode being difficult to by peeling off, and is also difficult to measure the concrete data about the adhesion between layer of polyurethane and nonwoven layer by the instrument of existing routine.But, in prior art, those are by the composite polyurethane compound nonwoven cloth of the external force combinations such as gluing or hot pressing, due to the adhesion deficiency between its layer of polyurethane and nonwoven layer, so can this polyurethane compound nonwoven cloth be intactly separated into independent layer of polyurethane and independent nonwoven layer by the mode of peeling off.
According to some preferred embodiment of the present utility model, the polyurethane preferred thermoplastic polyurethane in described layer of polyurethane.
According to some preferred embodiment of the present utility model, the average thickness of described layer of polyurethane is 20-50 μ m, preferably 25-35 μ m, particularly preferably 30 μ m.
According to some preferred embodiment of the present utility model, the nonwoven in described nonwoven layer can be selected from the one in following group: elastic non-woven cloth, spun-bonded non-woven fabrics and melt spraying non-woven fabrics, preferred elastomeric nonwoven.Described elastic non-woven cloth can be selected from the one in following group: unidirectional elastic non-woven cloth, bidirectional elastic nonwoven and multidirectional elastic non-woven cloth, preferred multidirectional elastic non-woven cloth.The multidirectional elastomeric nonwoven layer of cloth of described multidirectional elastic non-woven cloth optimization polypropylene.
According to some preferred embodiment of the present utility model, the average thickness of described nonwoven layer is 0.1-0.3mm, preferably 0.15-0.25mm.
The polyurethane compound nonwoven cloth that the utility model provides, the adhesion between its layer of polyurethane and nonwoven layer is very high, and in addition, this polyurethane compound nonwoven cloth also has good gas permeability, water proofing property, grease proofness and elasticity.
patch
According to another aspect of the present utility model, referring to Fig. 2, the utility model also provides a kind of patch 200, comprise: the polyurethane compound nonwoven cloth 100 providing according to the utility model and medicine glue mixture layer 30, described medicine glue mixture layer 30 is arranged in the nonwoven layer 20 of described polyurethane compound nonwoven cloth 100.The mode that described medicine glue mixture layer 30 can be coated with is arranged in the nonwoven layer 20 of described polyurethane compound nonwoven cloth 100.
About the introduction of " polyurethane compound nonwoven cloth ", refer to this description "
the compound nothing of polyurethane spin cloth" part.
According to some preferred embodiment of the present utility model, described medicine glue mixture layer can comprise medicament and medical adhesive.
According to some preferred embodiment of the present utility model, can select as required medicament, described medicament can be selected from the one in following group: ointment class medicament, pill class medicament and medicine tincture class medicament, preferably can be used for treating the ointment class medicament of the diseases such as rheumatalgia, the medicine tincture class medicament that can be used for treating the pill class medicament of the diseases such as hemorrhoid and can be used for treating the diseases such as skin injury, more preferably the pill class medicament that can be used for treating the ointment class medicament of the diseases such as rheumatalgia and can be used for treating the diseases such as hemorrhoid, particularly preferably can be used for treating the pill class medicament of piles.
According to some preferred embodiment of the present utility model, the preferred medical pressure sensitive adhesive of described medical adhesive, described medical pressure sensitive adhesive can be selected from the one in following group: polyacrylic acid medical pressure sensitive adhesive, rubber medical pressure sensitive adhesive and silica gel medical pressure sensitive adhesive.In addition, described medical pressure sensitive adhesive can be solvent-borne type medical pressure sensitive adhesive, water-based medical pressure sensitive adhesive or no-solvent type medical pressure sensitive adhesive, preferred solvent type medical pressure sensitive adhesive.
According to some preferred embodiment of the present utility model, referring to Fig. 3, described patch 200 can also comprise release layer 40, and described release layer 40 is arranged on that contrary side of the side with described nonwoven layer 20 is set of described medicine glue mixture layer 30.
According to some preferred embodiment of the present utility model, described release layer can be selected from the one in following group: papery release layer, PETG (PET) release layer and polyethylene (PE) release layer, preferably papery release layer and PETG (PET) release layer, particularly preferably release layer made of paper.
The patch that the utility model provides, can remove after release layer, directly pastes on the skin of sufferer, and the medicament in medicine glue mixture layer can be discharged into the skin surface of sufferer and be absorbed by the skin.For example, in the time that described medicament is ointment type medicament Chinese medicine, due to ointment type medicament Chinese medicine conventionally in glue medicine mixture proportion very high, so ointment type medicament Chinese medicine can be is directly discharged at the skin surface of sufferer; In the time that described medicament is pill type medicament, the grease in pill type medicament can dissolve and discharge in the affected part of sufferer under body temperature (approximately 37 degrees Celsius) condition; In the time that described medicament is medicine tincture type medicament, liquid medicine tincture type medicament also can directly discharge at the skin surface of sufferer.
The patch that the utility model provides, the adhesion between its layer of polyurethane and nonwoven layer is very high, and in addition, this patch also has good gas permeability, water proofing property, grease proofness, elasticity and viscosity.
Embodiment
The embodiment below providing and comparative example contribute to understand the utility model, and these embodiment and comparative example should not be construed as the restriction to the utility model scope.Except as otherwise noted, all umbers and percentage are all by weight.
The raw material adopting in embodiment of the present utility model and comparative example is as shown in table 1 below.
The tester adopting in embodiment of the present utility model and comparative example is as shown in table 2.
The raw material adopting in table 1 embodiment and comparative example or equipment
The tester adopting in table 2. embodiment and comparative example
| Equipment | Specification | Manufacturer |
| Solvent-borne type coating machine | The clean coating machine of solvent-borne type | Changzhou Yongsheng Packing Co., Ltd. |
| Baking oven | High temperature air supporting baking oven | Changzhou Yongsheng Packing Co., Ltd. |
The utility model is mainly provided by " Chinese YY/T0148-2006 medical adhesive tape General Requirement " by the MVTR value (Moisture Vapor Transmission Rate) of the polyurethane compound nonwoven cloth providing in test implementation example, to assess the gas permeability of polyurethane compound nonwoven cloth.When the MVTR of polyurethane compound nonwoven cloth value is greater than 500g/m
2when/24h, illustrate that this polyurethane compound nonwoven cloth has good gas permeability.
The utility model is mainly provided by " Chinese YY/T0471.3-2004 contact Wound dressing test method; the 3rd part: water preventing ability " by the hydrostatic pressing (Static Water Pressure) of the polyurethane compound nonwoven cloth providing in test implementation example, to assess the water proofing property of polyurethane compound nonwoven cloth.When the hydrostatic pressing of polyurethane compound nonwoven cloth is for being greater than 10cmH
2when O, illustrate that this polyurethane compound nonwoven cloth has good water proofing property.
The utility model is mainly provided by the method for following " grease proofing test " by the grease proofness of the polyurethane compound nonwoven cloth providing in test implementation example: 1) by the layer of polyurethane of polyurethane compound nonwoven cloth down, nonwoven layer is placed on clean phthalic acid glycol ester (PET) film upward; 2) in the nonwoven layer of polyurethane compound nonwoven cloth, be coated with the semi-synthetic fatty acid glycerine fat of one deck (36 ℃ of fusing points); 3) polyurethane compound nonwoven cloth being put into together with phthalic acid glycol ester (PET) film to the baking oven of 37 ℃ keeps 24 hours; 4) whether polyurethane compound nonwoven cloth is removed from PET film, observing PET film surface has the marking of grease seepage.If PET film surface does not have the marking of grease seepage, be recorded as " passing through ", illustrate that this polyurethane compound nonwoven cloth has good grease proofness; If there is the marking of grease seepage on PET film surface, be recorded as " not passing through ", illustrate that the grease proofness of this polyurethane compound nonwoven cloth is poor.
The elongation at break (Elongation) of the polyurethane compound nonwoven cloth providing in test implementation example is mainly provided by " assay method of Chinese FZ/T60005-91 non-weaving cloth ultimate strength and extension at break " the utility model, to assess the elasticity of polyurethane compound nonwoven cloth.In the time that longitudinal (Machine Direction) elongation at break of polyurethane compound nonwoven cloth is 150-400% with horizontal (Cross Direction) elongation at break, illustrate that this polyurethane compound nonwoven cloth has good elasticity.
The viscosity (Adhesion to Steel) of medicine glue mixture layer in the patch that the utility model mainly comes to provide in test implementation example by " Chinese YY/T0148-2006 medical adhesive tape General Requirement " to steel plate, to assess the viscosity of the medicine glue mixture layer in patch.If patch viscosity of (0h) in the time that surface of steel plate does not stop is greater than 0.5N/cm, illustrate that the medicine glue mixture layer in this patch has suitable viscosity, patch firmly can be pasted on the skin of sufferer.
Embodiment 1 (polyurethane compound nonwoven cloth)
5454LV polyurethane solutions (solid content: 30%, viscosity: 8000-12000cps/25 ℃, coating grammes per square metre 43g/sqm) is coated on multidirectional elastic non-woven cloth-1 of polypropylene that average thickness is 0.2mm with solvent-borne type coating machine.
Use oven for drying polyurethane solutions, oven temperature is set to 60,90, and the thermograde of 120,150 ℃ was respectively dried for 25 seconds in each thermograde.After oven dry, obtain a polyurethane compound nonwoven cloth, one side of this nonwoven layer is formed with the layer of polyurethane that an average thickness is 20-50 μ m, and described layer of polyurethane comprises that polyurethane body layer and part are penetrated into polyurethane interface layer curing in described nonwoven layer and in described nonwoven layer.
By previously described method, gas permeability, water proofing property, grease proofness and the elasticity of test polyurethane compound nonwoven cloth, test result is listed in table 3.
Embodiment 2 (patch)
5454LV polyurethane solutions (solid content: 30%, viscosity: 8000-12000cps/25 ℃, coating grammes per square metre 43g/sqm) is coated on multidirectional elastic non-woven cloth-2 of polypropylene that average thickness is 0.2mm with solvent-borne type coating machine.
Use oven for drying polyurethane solutions, oven temperature is set to 60,90, and the thermograde of 120,150 ℃ was respectively dried for 25 seconds in each thermograde.After oven dry, obtain a polyurethane compound nonwoven cloth, one side of this nonwoven layer is formed with the layer of polyurethane that an average thickness is 20-50 μ m, and described layer of polyurethane comprises that polyurethane body layer and part are penetrated into polyurethane interface layer curing in described nonwoven layer and in described nonwoven layer.
Medicine glue mixture layer (mixture of osmanthus dragon ointment and 3M RD971 medical pressure sensitive adhesive) is coated in the nonwoven layer of this polyurethane compound nonwoven cloth.
In that contrary side of the side with described nonwoven layer is set of medicine glue mixture layer, compound one deck CCK release liners.
By previously described method, gas permeability, water proofing property, grease proofness, elasticity and the viscosity of test patch, test result is listed in table 3.
Table 3 polyurethane compound nonwoven cloth and patch
The polyurethane compound nonwoven cloth and the patch that provide according to embodiment 1 and 2 of the present utility model, between its layer of polyurethane and nonwoven layer, do not combine by external force such as gluing or hot pressing, but directly polyurethane solutions is set to the surface of nonwoven layer by the mode of coating, to be coated on nonwoven layer surface and be penetrated into and combine after polyurethane solutions in nonwoven layer solidifies.The polyurethane compound nonwoven cloth obtaining in this way, adhesion between its layer of polyurethane and nonwoven layer is very high, both this polyurethane compound nonwoven cloth is intactly separated into independent layer of polyurethane and independent nonwoven layer by the mode being difficult to by peeling off, and is also difficult to measure the concrete data about the adhesion between layer of polyurethane and nonwoven layer by the instrument of existing routine.
As can be seen from Table 3, the polyurethane compound nonwoven cloth and the patch that provide according to embodiment 1 and 2 of the present utility model, its MVTR value is all greater than 500g/m
2/ 24h, illustrates that this polyurethane compound nonwoven cloth and patch all have good gas permeability.
As can be seen from Table 3, the polyurethane compound nonwoven cloth and the patch that provide according to embodiment 1 and 2 of the present utility model, its hydrostatic pressing is all greater than 10cmH
2o, illustrates that this polyurethane compound nonwoven cloth and patch all have good water proofing property.
As can be seen from Table 3, the polyurethane compound nonwoven cloth and the patch that provide according to embodiment 1 and 2 of the present utility model, its longitudinal fracture percentage elongation and transverse breakage percentage elongation all, in the scope of 150-400%, illustrate that this polyurethane compound nonwoven cloth and patch all have good elasticity.
As can be seen from Table 3, the patch providing according to embodiment 2 of the present utility model, viscosity when it does not stop (0h) at surface of steel plate is greater than 0.5N/cm, illustrates that the medicine glue mixture layer in patch has suitable viscosity, this patch can be pasted on the skin of sufferer.
In sum, the polyurethane compound nonwoven cloth that one side of the present utility model provides, the adhesion between its layer of polyurethane and nonwoven layer is very high, and in addition, this polyurethane compound nonwoven cloth also has good gas permeability, water proofing property, grease proofness and elasticity.The patch providing on the other hand of the present utility model, the adhesion between its layer of polyurethane and nonwoven layer is very high, and in addition, this patch also has good gas permeability, water proofing property, grease proofness, elasticity and viscosity.
Above-mentioned specific embodiment of the utility model only exemplary explanation principle of the present utility model and effect thereof, but not for limiting the utility model, know and it will be understood by those skilled in the art that, in the situation that not departing from spirit and scope of the present utility model, any changes and improvements that the utility model is done are all in scope of the present utility model.Rights protection scope of the present utility model, should as the application claim defined is as the criterion.
Claims (10)
1. a polyurethane compound nonwoven cloth, comprising:
Nonwoven layer; With
Be arranged on the layer of polyurethane of described nonwoven layer one side;
It is characterized in that, described layer of polyurethane comprises that polyurethane body layer and part are penetrated into polyurethane interface layer curing in described nonwoven layer and in described nonwoven layer.
2. polyurethane compound nonwoven cloth according to claim 1, is characterized in that, described layer of polyurethane is thermoplastic urethane layers.
3. polyurethane compound nonwoven cloth according to claim 1, is characterized in that, the average thickness of described layer of polyurethane is 20-50 μ m.
4. polyurethane compound nonwoven cloth according to claim 1, is characterized in that, described nonwoven layer is selected from the one in following group: elastomeric nonwoven layer of cloth, spun-bonded non-woven fabrics layer and melt-blown nonwoven layer of cloth.
5. polyurethane compound nonwoven cloth according to claim 4, is characterized in that, described elastomeric nonwoven layer of cloth is selected from the one in following group: unidirectional elastomeric nonwoven layer of cloth, bidirectional elastic nonwoven layer and multidirectional elastomeric nonwoven layer of cloth.
6. polyurethane compound nonwoven cloth according to claim 4, is characterized in that, described elastomeric nonwoven layer of cloth is the multidirectional elastomeric nonwoven layer of cloth of polypropylene.
7. polyurethane compound nonwoven cloth according to claim 1, is characterized in that, the average thickness of described nonwoven layer is 0.1-0.3mm.
8. a patch, comprising: according to the polyurethane compound nonwoven cloth described in any one in claim 1-7 and medicine glue mixture layer, described medicine glue mixture layer is arranged in the nonwoven layer of described polyurethane compound nonwoven cloth.
9. patch according to claim 8, is characterized in that, described patch also comprises release layer, and described release layer is arranged on that contrary side of the side with described nonwoven layer is set of described medicine glue mixture layer.
10. patch according to claim 9, is characterized in that, described release layer is selected from the one in following group: papery release layer, PETG release layer and polyethylene release layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889122.1U CN203651110U (en) | 2013-12-31 | 2013-12-31 | Composite polyurethane nonwoven cloth and plaster patch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889122.1U CN203651110U (en) | 2013-12-31 | 2013-12-31 | Composite polyurethane nonwoven cloth and plaster patch |
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| Publication Number | Publication Date |
|---|---|
| CN203651110U true CN203651110U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889122.1U Expired - Lifetime CN203651110U (en) | 2013-12-31 | 2013-12-31 | Composite polyurethane nonwoven cloth and plaster patch |
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| Country | Link |
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| CN (1) | CN203651110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494049A (en) * | 2016-12-29 | 2017-03-15 | 上海护理佳实业有限公司 | A kind of composite elastic material and hygienic articles |
| CN110154454A (en) * | 2019-05-24 | 2019-08-23 | 嘉兴德永纺织品有限公司 | A kind of production technology of Waterproof Breathable elastic force non-woven fabrics |
| CN114561807A (en) * | 2022-02-09 | 2022-05-31 | 苏州艾美医疗用品有限公司 | Elastic non-woven fabric and medical adhesive tape applying same |
-
2013
- 2013-12-31 CN CN201320889122.1U patent/CN203651110U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494049A (en) * | 2016-12-29 | 2017-03-15 | 上海护理佳实业有限公司 | A kind of composite elastic material and hygienic articles |
| CN110154454A (en) * | 2019-05-24 | 2019-08-23 | 嘉兴德永纺织品有限公司 | A kind of production technology of Waterproof Breathable elastic force non-woven fabrics |
| CN114561807A (en) * | 2022-02-09 | 2022-05-31 | 苏州艾美医疗用品有限公司 | Elastic non-woven fabric and medical adhesive tape applying same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20140618 |
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| CX01 | Expiry of patent term |