CN101831811A - High-insulation multilayer composite material for disposable protective clothing and production process thereof - Google Patents
High-insulation multilayer composite material for disposable protective clothing and production process thereof Download PDFInfo
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- CN101831811A CN101831811A CN201010178278A CN201010178278A CN101831811A CN 101831811 A CN101831811 A CN 101831811A CN 201010178278 A CN201010178278 A CN 201010178278A CN 201010178278 A CN201010178278 A CN 201010178278A CN 101831811 A CN101831811 A CN 101831811A
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- 230000001681 protective effect Effects 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000009413 insulation Methods 0.000 title abstract description 10
- 239000011185 multilayer composite material Substances 0.000 title abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 80
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 39
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 17
- 239000004743 Polypropylene Substances 0.000 claims description 52
- 239000000463 material Substances 0.000 claims description 41
- 150000001875 compounds Chemical class 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 25
- 238000002386 leaching Methods 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 24
- 239000004698 Polyethylene Substances 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 15
- 239000004744 fabric Substances 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 14
- -1 polyethylene Polymers 0.000 claims description 14
- 238000005098 hot rolling Methods 0.000 claims description 10
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- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 239000004831 Hot glue Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000009960 carding Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 229920006284 nylon film Polymers 0.000 claims description 3
- 229920006267 polyester film Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 7
- 238000013329 compounding Methods 0.000 abstract 6
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 33
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- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 208000031886 HIV Infections Diseases 0.000 description 1
- 208000037357 HIV infectious disease Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
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- 239000004775 Tyvek Substances 0.000 description 1
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- 208000033519 human immunodeficiency virus infectious disease Diseases 0.000 description 1
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Abstract
The invention relates to a high-insulation multilayer composite material for disposable protective clothing, which is in a layered structure and comprises a base layer and a PE coated layer compounded on the base layer, wherein the base layer is a bicomponent PP/PE non-woven fabrics layer which is made of PP/PE fibers, the used PP/PE fibers are skin-core structural fibers or 8-shaped section structural fibers, the skin-core structural fibers are that inner cores of the PP/PE fibers are PP fiber cores and outer layers are PE coating, and the 8-shaped section structural fibers are that the PP fibers and the PE fibers are bonded in parallel to be in an 8 shape. The production process of the invention comprises the step of bonding the base layer and the PE coated layer in a compounding way, wherein the compounding way is one of thermal compounding, glue compounding, high-frequency compounding and ultrasonic compounding. The protective clothing made by the composite material has good comfort degree, attractive appearance, light weight, low cost and good safety and insulation reliability on harmful substances.
Description
Technical field
The invention belongs to disposable medical and industrial protective products field, specifically a kind of high-insulation multilayer composite material for disposable protective clothing and production technology thereof.The material that the present invention produces, poisonous and harmful substances such as pathogen such as bacterium, virus, corrosive substance, solid radiation dust had high obstructing performance, can make disposable medical treatment and industrial protection product with it, as operation dress, cap, hole towel, particular job clothes or the like.
Background technology
For many years, our normally used protective clothing is the cotton fiber manufacturing, needs washing after the use, through sterilization repeated use again.Along with medical treatment and extraordinary industrial protection development of technology, people have progressively adopted disposable Protection Product, have overcome traditional protective clothing and have repeatedly used back sterilization decontamination thoroughly and easily not cause the defective of cross infection and secondary pollution.Phase early 1990s, increase along with hepatitis and HIV infection case, it should be noted that blood-borne pathogens can infect medical personnel, begin to pay attention to the performance of isolated microorganism of protective clothing and blood, adopt disposable non-textile to do overcoat, promoted further developing of protective materialss such as barrier fabric, laminated fabric and coated fabric.
Existing disposable protective clothing goods are made with more inexpensive nonwoven cloth material usually.Common nonwoven cloth material has PP nonwoven fabric, PET nonwoven fabric etc., and the production technology of nonwoven fabric also can be divided into fabric hot rolled nonwoven fabrics, the short fiber lapping-spunlace non-woven cloth of water thorn reinforcing, the spun-bonded non-woven fabrics that long filament spun-bond process lapping-hot rolling is reinforced, the multilayered molten spray silk blown non-woven fabric SMS etc. that melts into the net that short fiber lapping-hot rolling is reinforced.These nonwoven cloth materials can satisfy the demand of a part of medical treatment and industrial protection product.SMS class nonwoven fabric particularly, also can be better to the protection of bacterium.Yet there is bigger gap in existing nonwoven fabric between its fiber, make nonwoven fabric use under some occasion, has significant limitation.As be widely used in the protective clothing in fields such as medical treatment, fire-fighting, power station, chemical defence, need liquid barrier property, the requirement of solid dust barrier, but existing nonwoven fabric just can not meet the demands fully.The existence in gap between fiber always makes inevitably that virus, pathogen, harmful substance etc. have the risk through protective clothing, bring fatal harm may for doctor, nurse, patient and other users.
In order to make to bacterium, the protective clothing that etiologies such as virus and poisonous and harmful substance have the high-barrier grade, to be used for the occasion of high safety grade requirement, people have adopted many methods, as nonwoven fabric being refused the anti-arrangement of water/three, adopt superfine fibre to make the Tyvek of Du Pont of ultra-fine hole with special process, adopt polypropylene spun-bonded/melt the SM of the ultra-fine hole made of spray combination process, SMS, SMMS compound nonwoven cloth etc., in several different methods, hot compound one deck only has 10 several microns PE rete on the PP nonwoven fabric, promptly drench film PP cloth, be used to make the medical protection product, with its high security, low production cost, simple technology is loved by the people.
Yet, this PP drenches film composite material, in producing protective clothing goods process, a fatal weakness is arranged, that is exactly because fiber is the polypropylene fibre material, and the compound film of surface layer is a polyethylene film, and these two kinds of materials are because the difference of melt temperature, can't adopt common fusion sewing process to produce the operation dress goods, because suture site intensity is too low, seepage very easily.For this reason, for a long time, drench the protective clothing goods that the film composite material is produced with PP, usually adopt common needlework sewing, for preventing pin hole position seepage, its suture site has nearly all adopted materials such as adhesive, adhesive tape to seal, on the one hand, make protective clothing goods ready-made clothes weight increase, performances such as the flexibility of clothes, outward appearance are a greater impact, and cause snugness of fit to descend; On the other hand because the employing of a large amount of synthetic materials sealing adhesive materials has introduced new pollution sources for the protective clothing goods, and make the protective clothing goods cost according to height not down.
Summary of the invention
The objective of the invention is to work out a kind of high-insulation multilayer composite material for disposable protective clothing and production technology thereof.
The present invention will solve is existing PP when drenching the film composite material and making disposable protective clothing, the suture site of existence need stick with glue protective clothing Heavy Weight that goods bring, partially firmly, comfort level is low, profile is not attractive in appearance, adopt the high excessively problem of too much synthesis of chemicals, cost.
High-insulation multilayer composite material for disposable protective clothing of the present invention, be layer structure, comprise basic unit and the leaching membrane layer that is compound in the basic unit, described basic unit is two component PP/PE nonwoven layer, this nonwoven layer is made with the PP/PE fiber, used PP/PE fiber is skin-core structure fiber or 8 shaped sections structural fibers, described skin-core structure fiber is meant that the inner core of this PP/PE fiber is the PP fibre core, skin is the PE covering, and described 8 shaped sections structural fibers are meant that PP fiber and PE fiber are bonded into 8 fonts side by side.
The nonwoven layer of described basic unit is one deck at least; Must contain the component identical with base material in the material component of leaching membrane layer, for the nonwoven fabric basic unit of being made by the skin-core structure fiber, this identical component can not be in the inner core of skin-core structure fiber; For the nonwoven fabric basic unit that 8 shaped sections structural fibers are made, this face and the leaching membrane layer that contain this identical component are fitted; The two sides of the nonwoven fabric basic unit of making as 8 shaped sections structural fibers is respectively PE face and PP face, and leaching membrane layer is the PE material, and then PE face and leaching membrane layer are adjacent.
The nonwoven layer of described basic unit is 2 layers to 5 layers.Between the two then adjacent basic units, the material component of basic unit's binding face must be identical separately, promptly for the nonwoven fabric basic unit of making by the skin-core structure fiber, this identical component can not be in the inner core of skin-core structure fiber, the nonwoven fabric basic unit of making for 8 shaped sections structural fibers, this material component of adjacent binding face is identical, the two sides of the one nonwoven fabric basic unit of making as 8 shaped sections structural fibers is respectively PE face and PP face, and the two sides of another nonwoven fabric basic unit also is respectively PE face and PP face, and then PP face and PP face are fitted or PE face and the applying of PE face.
The thin layer of described leaching membrane layer for making by macromolecular material, the film thickness scope is 0.005-0.030mm, optimum thickness range is between 0.010-0.015mm.The used film of macromolecule material film layer is polyolefin film or polyester film, nylon film, comprises polyethylene film, polypropylene film.
High-insulation multilayer composite material for disposable protective clothing production technology of the present invention, its basic unit and leaching membrane layer are bonding by complex method, described complex method be hot compound, glue is compound, high frequency is compound, a kind of in compound of ultrasonic wave.Heat is compound to be that hot rolling is compound or the pouring film is compound.Glue is compound to be that spray glue method is compound or the gluing method is compound, and used glue is cold glue, hot melt adhesive.
Two component nonwoven fabric that basic unit uses with spun-bond process, melt the spray method and produce, or bicomponent staple fiber is reinforced into bonded fabric with hot rolling behind carding.
The composite that obtains after leaching membrane layer and basic unit are compound, when splicing, the suture way of joint comprises that heat is melted stitching, high frequency heat melts stitching or the ultrasonic wave robotic suturing device is sewed up; Described ultrasonic wave is sewed up the mould that is meant with having certain decorative pattern, and the composite that needs are sewed up applies the certain frequency ultrasonic wave, and because of the mechanical energy conversion produces heat, the joint of composite is merged in fusion between the feasible composite that is sewn.
Advantage of the present invention: the one, two component PP/PE fabric nonwoven cloths that the present invention produces drench film (PE) composite, can adopt the ultrasonic wave sewing device to be sewed in the splicing position, comfort level is good so the protective clothing made from the present invention has, good looking appearance, light and handy, and the safety of harmful substance is intercepted good reliability, with low cost.The 2nd, the nonwoven fabric that the present invention produces is with respect to common PP nonwoven fabric, have smooth as soft, the silk, the lining grammes per square metre is low, intensity is high, elongation is big, phozy etc.
Description of drawings
Two high barrier multilayer materials that Fig. 1 produces for the present invention are sewed up the structural representation after merging.
Fig. 2 is the structural representation of high barrier multilayer materials basic unit bottom surface.
Fig. 3 is the structural representation of skin-core structure fiber in the base material.
Fig. 4 is the structural representation of 8 shaped sections structural fibers.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and example.
As shown in the figure, high-insulation multilayer composite material for disposable protective clothing of the present invention, be layer structure, comprise that one deck basic unit 4 and one deck are compound in the leaching membrane layer 1 in the basic unit, described basic unit 4 is two component PP/PE nonwoven layer, this nonwoven layer is made with the PP/PE fiber, and used PP/PE fiber is skin- core structure fiber 3 or 8 shaped sections structural fibers.Described skin-core structure fiber 3 is meant that the inner core of this PP/PE fiber is a PP fibre core 6, and skin is a PE covering 7.Described 8 shaped sections structural fibers are meant that PP fiber 8 and PE fiber 9 are bonded into 8 fonts side by side.
The material component of above-mentioned leaching membrane layer 1 is PE, and it must have identical component PE with basic unit's 4 materials.For the nonwoven fabric basic unit 4 of being made by skin-core structure fiber 3, this identical component PE can not be in the inner core of skin-core structure fiber, and promptly described skin-core structure fiber inner core is the PP core, and skin is the PE covering.The nonwoven fabric basic unit of making for 8 shaped sections structural fibers, this face and the leaching membrane layer that contain this identical component PE are fitted, promptly the two sides of the 8 shaped sections structural fibers nonwoven fabric basic unit of making is respectively PE face and PP face, and have only the one side of PE and leaching membrane layer to fit, promptly the PE face and the leaching membrane layer of basic unit are adjacent.
The nonwoven layer of described basic unit also can be 2 layers to 5 layers (not expressions among the figure).Between the two adjacent basic units, the material component of basic unit's binding face must be identical separately, promptly for the nonwoven fabric basic unit of making by the skin-core structure fiber, this identical component can not be in the inner core of skin-core structure fiber, the nonwoven fabric basic unit of making for 8 shaped sections structural fibers, this material component of adjacent binding face is identical, the two sides of the one nonwoven fabric basic unit of making as 8 shaped sections structural fibers is respectively PE face and PP face, and the two sides of another nonwoven fabric basic unit also is respectively PE face and PP face, and then PP face and PP face are fitted or PE face and the applying of PE face.
The thin layer of described leaching membrane layer 1 for making by macromolecular material, the film thickness scope is 0.005-0.030mm, optimum thickness range is between 0.010-0.015mm.The used film of macromolecule material film layer is polyolefin film or polyester film, nylon film, comprises polyethylene film, polypropylene film.
High-insulation multilayer composite material for disposable protective clothing production technology of the present invention, its basic unit 2 and leaching membrane layer 1 is bonding by complex method, described complex method be hot compound, glue is compound, high frequency is compound, a kind of in compound of ultrasonic wave.Heat is compound to be that hot rolling is compound or the pouring film is compound.Glue is compound to be that spray glue method is compound or the gluing method is compound, and used glue is cold glue, hot melt adhesive.As compound, then have in basic unit 4, to have to add fixedly hot rolling point 5 with hot rolling.
Two component nonwoven fabric of basic unit's 4 usefulness with spun-bond process, melt the spray method and produce, or bicomponent staple fiber is reinforced into bonded fabric with hot rolling behind carding.
The composite that obtains after leaching membrane layer 1 and basic unit 4 are compound, when splicing, the suture way of joint 2 comprises that heat melts stitchings, high frequency heat and melt and sew up or the stitching of ultrasonic wave robotic suturing device.Described ultrasonic wave is sewed up the mould that is meant with having certain decorative pattern, and the composite that needs are sewed up applies the certain frequency ultrasonic wave, and because of the mechanical energy conversion produces heat, the joint 2 of composite is merged in fusion between the feasible composite that is sewn.
Pouring film of the present invention carries out on PE salivation film production line.
Two component PP/PE that the present invention produces drench film compound nonwoven cloth lining, after composing, cutting, adopt the ultrasonic wave Sewing machines to sew up ready-made clothes, i.e. disposable protective clothing.
Above-mentioned protective clothing, its performance result after tested is as follows:
Abrasion test＞1600 time
Tearing strength MD 127.3N
CD 57.86N
Paracentesis resistance 14.63N
TENSILE STRENGTH CD 70.3N
MD 102.44N
Elongation at break M 338.91%
T 242.09％
Hydrostatic pressing (containing suture)＞2000mmH
2O
Shower water blotting paper weightening finish (containing suture)＜0.1g
The PP fiber of stating of the present invention is meant polyethylene fiber, and the PE fiber is meant polypropylene fibre.
The PP film is meant polyethylene film, and the PE film is meant polypropylene film.
Claims (10)
1. protective clothing high barrier multilayer materials, it is a layer structure, comprise basic unit and the leaching membrane layer that is compound in the basic unit, it is characterized in that described basic unit is two component PP/PE nonwoven layer, this nonwoven layer is made with the PP/PE fiber, used PP/PE fiber is skin-core structure fiber or 8 shaped sections structural fibers, described skin-core structure fiber is meant that the inner core of this PP/PE fiber is the PP fibre core, skin is the PE covering, and described 8 shaped sections structures are meant that PP fiber and PE fiber are bonded into 8 fonts side by side.
2. protective clothing high barrier multilayer materials according to claim 1, the nonwoven layer that it is characterized in that basic unit is one deck at least; Must contain the component identical with base material in the material component of leaching membrane layer, for the nonwoven fabric basic unit of being made by the skin-core structure fiber, and this identical component can not be in the inner core of skin-core structure fiber; For the nonwoven fabric basic unit that 8 shaped sections structural fibers are made, this face and the leaching membrane layer that contain this identical component are fitted;
As basic unit is more than 2 layers, between the two then adjacent basic units, the material component of basic unit's binding face must be identical separately, promptly for the nonwoven fabric basic unit of making by the skin-core structure fiber, this identical component can not be in the inner core of skin-core structure fiber, the nonwoven fabric basic unit of making for 8 shaped sections structural fibers, this material component of adjacent binding face is identical, the two sides of the one nonwoven fabric basic unit of making as 8 shaped sections structural fibers is respectively PE face and PP face, and the two sides of another nonwoven fabric basic unit also is respectively PE face and PP face, and then PP face and PP face are fitted or PE face and the applying of PE face.
The two sides of the nonwoven fabric basic unit of making as 8 shaped sections structural fibers is respectively PE face and PP face, and leaching membrane layer is the PE material, and then PE face and leaching membrane layer are adjacent.
3. protective clothing high barrier multilayer materials according to claim 1, the nonwoven layer that it is characterized in that basic unit are 2 layers to 5 layers.
4. protective clothing high barrier multilayer materials according to claim 1 is characterized in that leaching membrane layer is the thin layer of being made by macromolecular material, and the film thickness scope is 0.005-0.030mm, and optimum thickness range is between 0.010-0.015mm.
5. protective clothing high barrier multilayer materials according to claim 4 is characterized in that the used film of macromolecule material film layer is polyolefin film or polyester film, nylon film, comprises polyethylene film, polypropylene film.
6. the protective clothing according to claim 1 production technology of high barrier multilayer materials, it is characterized in that basic unit and leaching membrane layer are bonding by complex method, described complex method be hot compound, glue is compound, high frequency is compound, a kind of in compound of ultrasonic wave.
7. protective clothing according to claim 6 is characterized in that with the production technology of high barrier multilayer materials hot compound is that hot rolling is compound or the pouring film is compound.
8. protective clothing according to claim 6 is with the production technology of high barrier multilayer materials, it is characterized in that glue is compound compound or the gluing method is compound for spray glue method, and used glue is cold glue, hot melt adhesive.
9. the protective clothing according to claim 6 production technology of high barrier multilayer materials, it is characterized in that two component nonwoven fabric that basic unit uses with spun-bond process, melt the spray method and produce, or bicomponent staple fiber is reinforced into bonded fabric with hot rolling behind carding.
10. the protective clothing according to claim 6 production technology of high barrier multilayer materials, it is characterized in that the composite that leaching membrane layer and basic unit obtain after compound, when splicing, the suture way of joint comprises that heat is melted stitching, high frequency heat melts stitching or the ultrasonic wave robotic suturing device is sewed up; Described ultrasonic wave is sewed up the mould that is meant with having certain decorative pattern, and the composite that needs are sewed up applies the certain frequency ultrasonic wave, and because of the mechanical energy conversion produces heat, the joint of composite is merged in fusion between the feasible composite that is sewn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010178278A CN101831811A (en) | 2010-05-21 | 2010-05-21 | High-insulation multilayer composite material for disposable protective clothing and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010178278A CN101831811A (en) | 2010-05-21 | 2010-05-21 | High-insulation multilayer composite material for disposable protective clothing and production process thereof |
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Cited By (10)
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| CN102309081A (en) * | 2011-09-28 | 2012-01-11 | 世源科技(嘉兴)医疗电子有限公司 | Production technique of high-barrier ultrasonic weld for disposable medical protective clothing |
| CN103417304A (en) * | 2013-08-08 | 2013-12-04 | 嘉兴君泰医用辅料有限公司 | Medical operation towel and preparing method thereof |
| CN103526454A (en) * | 2013-09-26 | 2014-01-22 | 山东俊富无纺布有限公司 | Industrial protection non-woven material and manufacturing method thereof |
| CN105764967A (en) * | 2013-12-03 | 2016-07-13 | 东丽株式会社 | Porous film, water-resistant and moisture-transmitting material, and medical garment and protective garment using water-resistant and moisture-transmitting material |
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| CN111933324A (en) * | 2020-08-20 | 2020-11-13 | 山东杰创安全检测有限公司 | X-ray protective cloth and X-ray protective clothing |
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| CN115041029A (en) * | 2022-06-15 | 2022-09-13 | 东华大学 | Bi-component skin-core fiber-based hierarchical structure porous membrane and preparation method thereof |
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Application publication date: 20100915 |