CN1602772A - Medical protective material and method for making same - Google Patents
Medical protective material and method for making same Download PDFInfo
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- CN1602772A CN1602772A CN 03154450 CN03154450A CN1602772A CN 1602772 A CN1602772 A CN 1602772A CN 03154450 CN03154450 CN 03154450 CN 03154450 A CN03154450 A CN 03154450A CN 1602772 A CN1602772 A CN 1602772A
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Abstract
The invention relates to medical application barrier material field, especially a high efficient filtration with remarkable gas permeation and transmission of humidity performance and its preparing virus and germ. The medical application barrier material is made of super double-obstruction fabric layer and degerming and disinfection fabric layer and a high efficient electrostatic adsorption filtration layer between them. The invention discloses especially suitable for medical care personnel, people with infectious diseases and people preventing virus infection and environment with lots of medical application barrier material.
Description
Technical field
The invention belongs to the medical protective material field, particularly a kind of ventilative, high efficiency filter medical protective material that water vapour permeability is good and preparation method thereof.
Background technology
A large amount of procreations of pollution, germ or other bacterium of empty G﹠W bring huge threat for people's health.The use of protective materials is avoided the germ invasion and attack to the mankind provides a kind of safeguard measure easily.People use protective materials setting " filtration barrier " together, and air is played a role in filtering, and make a large amount of dusts, bacterium, virus and the various harmful materials etc. that are being mingled with in the air can not enter human body.Because some germ is very indomitable, and mainly propagate, do not reach barriering efficiency inadequately by force when not high enough, can only improve its safety by increasing thickness so have the killing pathogenic bacteria function or kill the bacterium ability at protective materials by the spittle and close contact.Even like this, also not necessarily play thorough safe effect for some obstinate germ, and if use blocked up protective materials, can sensation feel oppressed very much, to such an extent as to a large amount of perspiration of particularly long-time use meeting causes collapse, and passive protective physical fitness is descended, and may cause other diseases on the contrary.In addition, because protective materials directly contacts skin, the metabolin of human body also pollutes under hygrothermal environment easily, so the health of protective materials itself and security are particularly important.
Super two thin fabric, its surface has the function of super-hydrophobic and super oleophobic.This function can stop all kinds of water or oil component to infiltrate the opposite side of fabric, can prevent germ attached to fabric face, and can avoid offering condition and the chance that bacterium grows up and breeds.
Nano-TiO
2Photochemical catalyst has the function of kill bacteria, because its specific area is bigger, when running into bacterium, at first with the germ adsorption filtration on its surface, the cell of directtissima bacterium subsequently causes the organic matter degradation in the bacterial cell, with this kill bacteria, and make it to decompose.Nano-TiO
2It is high and lasting that the photo-catalyst agent has antimicrobial efficiency, and good advantages such as security.Utilize natural daylight, normal temperature and pressure to get final product catalytic decomposition germ and pollutant, wide accommodation.
Studies show that TiO
2The photo-catalyst agent is to staphylococcus aureus, Escherichia coli, and bacillus subtilis and streptococcus mutans all have higher sterilizing rate, even cancer cell can be killed.Nano-TiO
2Also different mould (as aspergillus flavus, aspergillus niger, Sai Shi aspergillus, Aspergillus terreus, aspergillus ustus, Chaetomium globosum, multi-trunk natalensis, Penicillium citrinum, Paecilomyces varioti, Trichoderma viride) also there is the good sterilization effect.
Inorganic antiseptic has contact-type, and spectrum is antibiotic, and lasting, water-fast, acid and alkali-resistance are harmless to the health, characteristics such as non-secondary pollution, are widely used at present.As its antibiotic mechanism of silver ion is that silver ion carries out haptoreaction, causes the total composition of microorganism to destroy or produce dysfunction.When the silver ion of trace arrives the microbial cell film, because of the latter electronegative, rely on Coulomb attraction, make both firm adsorption filtrations, silver is from entering in the born of the same parents in the penetration cell wall, and with the sulfydryl reaction, make protein coagulating, destroy the activity of cell synzyme, cell is lost the division growth ability and death.Silver ion can also destroy microorganisms electric transmission system, respiratory system and substance delivery system.
The high efficiency filter material keeps good ventilative, water vapour permeability simultaneously because deleterious particles such as bacterium, virus can effectively be adsorbed and stop to its powerful Electrostatic Absorption ability.
Above-mentioned several functional materials are carried out organically combination, and be combined in fabric face or the fabric, be used for protective clothes and safety device, make protective clothes and safety device have sterilized antiviral effect, this point of destination of the present invention just.
Summary of the invention
One of purpose of the present invention provides a kind of ventilative, high efficiency filter medical protective material that water vapour permeability is good, do not have defectives such as sterilizing function or sterilizing function be undesirable to solve undesirable, the ventilative and poisture-penetrability tissue layer poor, that press close to health of present protective materials filter effect, prevent from that the tissue layer of health quickens the present situation of germ reproduction simultaneously under high temperature, super-humid conditions.
Two of purpose of the present invention provides a kind of preparation method of ventilative, high efficiency filter medical protective material that water vapour permeability is good.
High efficiency filter medical protective material ventilative, that water vapour permeability is good of the present invention comprises super two thin barrier fabric layer, degerming sterilization tissue layer, high efficiency electrostatic adsorption filtration tissue layer etc.Be between super two thin barrier fabric layers and degerming sterilization tissue layer, to accompany one deck high efficiency electrostatic adsorption filtration tissue layer material.
Preparation method ventilative, high efficiency filter medical protective material that water vapour permeability is good of the present invention comprises the following steps:
(1) the super two thin barrier fabric layers of preparation;
(2) preparation high efficiency electrostatic adsorption filtration tissue layer material;
(3) preparation degerming sterilization tissue layer;
(4) above-mentioned three function fabric layers that prepare are combined with each other by combination process, promptly get ventilative, high efficiency filter medical protective material that water vapour permeability is good of the present invention.
Super two thin barrier fabric layers of the present invention: be made up of super two thin breathable fabrics more than one deck, it has and does not get wet and the surface of oily dirt free, preparation method such as number of patent application 01141502.9 disclosed method, or obtain by additive method (as: commercially available).
Degerming sterilization tissue layer of the present invention: form by the above degerming sterilization of one deck tissue layer, every layer material contains nano-titanium oxide and inorganic antiseptic, or containing the layers of breathable fabric of the compound and the inorganic antiseptic of nano-titanium oxide, the content of the compound of nano-titanium oxide or nano-titanium oxide is 4～30g/m in the fabric
2, the content of inorganic antiseptic is 0.05～2g/m
2
The making of degerming sterilization tissue layer of the present invention is to finish by following method.Can be with nano-titanium oxide and inorganic antiseptic, or the compound of nano-titanium oxide and inorganic antiseptic are made into certain density colloidal sol respectively, make textile impregnation earlier in containing inorganic antiseptic colloidal sol, do through roll extrusion, roars of laughter, and then be immersed in the compound colloidal sol of nano-titanium oxide or nano-titanium oxide, obtain after doing through roll extrusion, roars of laughter;
Or with nano-titanium oxide and inorganic antiseptic, or the compound of nano-titanium oxide and inorganic antiseptic be made into certain density colloidal sol respectively, and inorganic antiseptic colloidal sol is sprayed on the fabric, and be dried through fooling, and then the compound colloidal sol of spraying nano-titanium oxide or nano-titanium oxide, roars of laughter obtain after doing.
Adsorption filtration layer material of the present invention: form every layer of filtering material, poisture-penetrability processing ventilative by the above adsorption filtration layer material of one deck through increasing; Or increase the Electrostatic Absorption processing again and obtain high efficiency electrostatic adsorption filtration layer material; Or directly increase ventilative, poisture-penetrability and handle and increase the Electrostatic Absorption processing and obtain high efficiency electrostatic adsorption filtration layer material.
Adsorption filtration layer material of the present invention is to finish by following method: the filter course material is carried out surface etch through physical method obtain after with ventilative, the poisture-penetrability, absorption and the filterability that increase material.
To increase the Electrostatic Absorption agent and be made into certain density solution or colloidal sol, and make the filter course material soaking then earlier in this solution or colloidal sol, obtain high efficiency electrostatic adsorption filtration layer material after doing through roll extrusion, roars of laughter;
Or with the filter course material through after physical method carries out surface etch, be immersed in the solution or colloidal sol that adds the Electrostatic Absorption agent, obtain high efficiency electrostatic adsorption filtration layer material through roll extrusion, roars of laughter after doing;
Physical surface lithographic method of the present invention can form atomic little concaveconvex structure on the fabric fibre surface, the fabric microstructure is changed, and on fiber surface connects functional group, thereby the fabric air-permeability of filter course, saturating wet and absorption property are significantly improved.
Physical surface lithographic method of the present invention can be methods such as low temperature glow discharge technique, vacuum sputtering technology, corona discharge, ultraviolet ray, laser.
Inorganic antiseptic of the present invention comprises metal or metal ion, and described metal is silver, copper or zinc etc.The antibacterial ability of silver and ion thereof is best.
Inorganic antiseptic of the present invention is by methods such as physical absorptions, metal such as silver, copper, zinc or its metal ion is fixed on the fabric, and makes fabric obtain to have antibacterial ability.
The compound of nano-titanium oxide of the present invention comprise titanium oxide and silica compound, titanium oxide and zinc oxide compound, titanium oxide and iron oxide compound, be doped with iron ion titanium oxide, be doped with the titanium oxide of nitrogen element etc.Titanium oxide wherein: the mol ratio of compound is 1～2.5: 1; Be doped with iron ion titanium oxide, be doped with the titanium oxide of nitrogen element, wherein the mol ratio of iron ion and titanium oxide is 1: 1～90, the mol ratio of nitrogen element and titanium oxide is 1: 1～95.
Described colloidal sol comprises titanium colloidal sol and/or Ludox, and its consumption is as the criterion for the compound that can make titanium oxide or titanium oxide at least and/or antiseptic stick on the fabric securely.
Do not contain polarity group, macromolecular material or its oligomer that sheet resistance is high in the molecule of increase Electrostatic Absorption of the present invention agent, comprise organic fluorine, crosslinkable paraffin, organic siliconresin etc. with thermal polymerization
Filter course material of the present invention comprises the filterability nonwoven of high efficiency filter nonwoven polypropylene fabric, cotton fiber nonwoven, terylene non-woven fabric, acrylic fibers nonwoven, polyamide fibre nonwoven, other fiber.
Breathable fabric of the present invention comprises cotton gauze, nonwoven, fiber crops, wool, silk, synthetic cotton, terylene, polypropylene fibre, acrylic fibers, polyamide fibre, washs/cotton, hair/wash or hair/nitrile or the like.
Combination process of the present invention comprises that online heat seal typing, hot composite setting, hot melt heat seal typing, viscose binder are bonding, heat seal typing and adhesive are bonding etc.
High efficiency filter medical protective material tool ventilative, that water vapour permeability is good of the present invention is efficient intercept non-oiliness particle, breathable moisture permeability good, antiviral, etc. function.The environment that is particularly suitable for medical personnel, patients with infectious diseases, prevents the personnel of viral communication and contains a large amount of or strong virus bacterium protection down uses.
Description of drawings
Fig. 1. each stacked order schematic diagram that falls of protective materials of the present invention;
Reference numeral
1. super two thin barrier fabric layer 2. adsorption filtration layer 3. degerming sterilization tissue layer
The specific embodiment
The invention will be further described below in conjunction with embodiment, and cited embodiment is not to be limited embodiment.
Embodiment 1
The super two thin tissue layer 1 that one deck is commercially available, one deck increase the Electrostatic Absorption processing adsorption filtration layer 2, one deck degerming sterilization tissue layer 3, be bonded together successively with adhesive, both can obtain medical protective material of the present invention.As shown in Figure 1.
The protective materials breathable moisture permeability of made is fine, within national standard.The protective materials antibacterial tests of made adopts Quine's method.Get one deck degerming sterilizing layer 3 and one deck adsorption filtration antibiotic layer 2, bacterium liquid is directly dripped on two-layer cotton yarn, cover, judge its bacteriostasis according to the bacteriostasis rate size with culture medium.The result is 〉=99% to colibacillary killing rate behind 10min, and the non-oily particle barriering efficiency of right 〉=0.3 μ m is 95%, and vapor transfer rate is 11170g/m
2D.
The textile of described degerming sterilization tissue layer is textile 80 gauzes; Described adsorption filtration layer raw material is that the non-oily particle barriering efficiency of right 〉=0.3 μ m is 60% nonwoven polypropylene fabric; Described commercially available super two thin barrier fabric layers are the polyester cotton blending linings (washing 70%, cotton 30%) through super two thin arrangements.
Described degerming sterilization tissue layer and adsorption filtration layer can prepare according to foregoing method, wherein filter course adopts 5% fluororesin solution to spray through roll extrusion, roars of laughter and obtains after doing for to have filterability nonwoven polypropylene fabric (the non-oily particle barriering efficiency of right 〉=0.3 μ m is 60%); Degerming sterilization tissue layer be with nano-titanium oxide and inorganic antiseptic, is made into 1: 1.5 ratio, and the colloidal sol of 5% concentration is sprayed on inorganic antiseptic colloidal sol on the fabric, obtains after dried through fooling; Wherein the content of the compound of nano-titanium oxide and zinc oxide is 4～30g/m in the degerming sterilization tissue layer
2, the content of silver is 0.05～2g/m
2
Embodiment 2
With the commercially available super two thin barrier fabric layers 1 of one deck, one deck air-moisture-permeable adsorption filtration layer 2, one deck degerming sterilization tissue layer 3, folded successively dropping on together from outside to inside, with the online hot composition process protective materials that is composited.
The protective materials breathable moisture permeability of made is fine, within national standard.The protective materials antibacterial tests of made adopts Quine's method.Get one deck degerming sterilizing layer 3 and one deck adsorption filtration layer 2, bacterium liquid is directly dripped on two-layer cotton yarn, cover, judge its bacteriostasis according to the bacteriostasis rate size with culture medium.The result is 〉=99% to colibacillary killing rate behind 5min, and the non-oily particle barriering efficiency of right 〉=0.3 μ m is 90%, and vapor transfer rate is 12000g/m
2D.
Described degerming sterilization tissue layer and adsorption filtration layer can be according to being made into 1: 1 ratio respectively with the compound and the inorganic antiseptic of nano-titanium oxide, and the colloidal sol of 5% concentration makes textile impregnation earlier in containing inorganic antiseptic colloidal sol, obtain after doing through roll extrusion, roars of laughter; Wherein the compound content of titanium oxide and zinc oxide is 4～30g/m in the degerming sterilization tissue layer
2, nano-titanium oxide: the mol ratio of compound is 1: 1, the content of zinc is 0.05～2g/m
2Air-moisture-permeable adsorption filtration layer is that nonwoven polypropylene fabric (the non-oily particle barriering efficiency of right 〉=0.3 μ m is 80%) was handled 5 minutes in the low-temperature plasma instrument for raw material, sprays 2% crosslinkable paraffin solution again and obtains after doing through roll extrusion, roars of laughter.
The fabric of described degerming sterilization tissue layer is a hospital gauze; Described adsorption filtration layer is that the non-oily particle barriering efficiency of right 〉=0.3 μ m is 80% nonwoven polypropylene fabric; Described commercially available super two thin barrier fabric layers are the textile poplin cloth through super two thin arrangements.
Embodiment 3
The commercially available super two thin barrier fabric layers 1 of one deck, one deck adsorption filtration antibacterial fabric layer 2, one deck degerming sterilization tissue layer 3 are folded successively from outside to inside and dropped on together, and the textile of described degerming sterilization tissue layer is polyester cotton blending lining (washing 65%, cotton 35%); Described adsorption filtration layer is that the non-oily particle barriering efficiency of right 〉=0.3 μ m is 70% nonwoven polypropylene fabric; Described commercially available super two thin barrier fabric layers are the pure polyester fabrics through super two thin arrangements; Adopt the online combination process of thermosol to be combined with each other.
The protective materials breathable moisture permeability of made is fine, within national standard.Antibacterial tests adopts Quine's method.Get one deck degerming sterilizing layer 3 and one deck adsorption filtration layer 2, bacterium liquid is directly dripped on two-layer function fabric, cover, judge its bacteriostasis according to the bacteriostasis rate size with culture medium.The result is 〉=99% to colibacillary killing rate behind 10min.The non-oily particle barriering efficiency of right 〉=0.3 μ m is 80%, and vapor transfer rate is 12000g/m
2D.
Described degerming sterilization tissue layer and adsorption filtration antibacterial fabric layer were made into the compound and the inorganic antiseptic of nano-titanium oxide respectively 1: 1.25, the colloidal sol of 5% concentration, antiseptic colloidal sol is sprayed on the fabric, dried through fooling, and then the compound colloidal sol of spraying nano-titanium oxide, roars of laughter obtain after doing.Wherein the compound content of titanium oxide and zinc oxide is 4～30g/m in the degerming sterilization tissue layer
2, nano-titanium oxide: the mol ratio of compound is 2: 1, the content of silver is 0.05～2g/m
2Handling 3 minutes in the low-temperature plasma instrument for raw material of air-moisture-permeable filter course for nonwoven polypropylene fabric (the non-oily particle barriering efficiency of right 〉=0.3 μ m is 70%).
Claims (10)
1. medical protective material, it is characterized in that: described medical protective material is made up of super two thin barrier fabric layers, degerming sterilization tissue layer, high efficiency electrostatic adsorption filtration layer material, is to accompany one deck high efficiency electrostatic adsorption filtration layer material between super two thin barrier fabric layers and degerming sterilization tissue layer.
2. material as claimed in claim 1, it is characterized in that: described degerming sterilization tissue layer is made up of the above degerming sterilization of one deck tissue layer, every layer material contains nano-titanium oxide and inorganic antiseptic, or containing the layers of breathable fabric of the compound and the inorganic antiseptic of nano-titanium oxide, the content of the compound of nano-titanium oxide or nano-titanium oxide is 4～30g/m in the fabric
2, the content of inorganic antiseptic is 0.05～2g/m
2
3. material as claimed in claim 1 is characterized in that: described adsorption filtration layer material is made up of the above adsorption filtration layer material of one deck, every layer of filtering material, poisture-penetrability processing ventilative through increasing; Or increase the Electrostatic Absorption processing again and obtain high efficiency electrostatic adsorption filtration layer material; Or directly increase ventilative, poisture-penetrability and handle and increase the Electrostatic Absorption processing and obtain high efficiency electrostatic adsorption filtration layer material.
4. material as claimed in claim 1 or 2 is characterized in that: described fabric is cotton gauze, nonwoven, fiber crops, wool, silk, synthetic cotton, terylene, polypropylene fibre, acrylic fibers, polyamide fibre, wash/cotton, hair/wash or hair/nitrile.
5. as claim 1 or 3 described materials, it is characterized in that: described adsorption filtration layer material is nonwoven polypropylene fabric, cotton fiber nonwoven, terylene non-woven fabric, acrylic fibers nonwoven or polyamide fibre nonwoven.
6. material as claimed in claim 2 is characterized in that: described inorganic antiseptic comprises silver, copper or zinc.
7. material as claimed in claim 2, it is characterized in that: the compound of described nano-titanium oxide comprise titanium oxide and silica compound, titanium oxide and zinc oxide compound, titanium oxide and iron oxide compound, be doped with iron ion titanium oxide, be doped with the titanium oxide of nitrogen element, titanium oxide wherein: the mol ratio of compound is 1～2.5: 1; Be doped with iron ion titanium oxide, be doped with the titanium oxide of nitrogen element, wherein the mol ratio of iron ion and titanium oxide is 1: 1～90, the mol ratio of nitrogen element and titanium oxide is 1: 1～95.
8. material as claimed in claim 3 is characterized in that: the Electrostatic Absorption agent of described increase Electrostatic Absorption processing comprises organic fluorine, crosslinkable paraffin or organic siliconresin.
9. preparation method as each described medical protective material of claim 1～8, it is characterized in that: described preparation method comprises the following steps:
(1) the super two thin barrier fabric layers of preparation;
(2) preparation high efficiency electrostatic adsorption filtration tissue layer material;
(3) preparation degerming sterilization tissue layer;
(4) above-mentioned three function fabric layers that prepare are combined with each other by combination process, promptly get medical protective material.
10. method as claimed in claim 9 is characterized in that: described combination process is that online heat seal typing, hot composite setting, hot melt heat seal typing, viscose binder are bonding, heat seal typing or adhesive are bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031544509A CN100387162C (en) | 2003-09-29 | 2003-09-29 | Medical protective material and method for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031544509A CN100387162C (en) | 2003-09-29 | 2003-09-29 | Medical protective material and method for making same |
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| Publication Number | Publication Date |
|---|---|
| CN1602772A true CN1602772A (en) | 2005-04-06 |
| CN100387162C CN100387162C (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031544509A Expired - Fee Related CN100387162C (en) | 2003-09-29 | 2003-09-29 | Medical protective material and method for making same |
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| CN (1) | CN100387162C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181661B (en) * | 2007-12-13 | 2011-07-20 | 中国人民解放军总后勤部军需装备研究所 | Multifunctional ventilating type protection material and preparation method thereof |
| CN102358071A (en) * | 2011-09-20 | 2012-02-22 | 苏州金荣华轻纺实业有限公司 | Antibacterial textile |
| CN102407643A (en) * | 2011-08-31 | 2012-04-11 | 苏州金荣华轻纺实业有限公司 | Soil release textile |
| CN103213334A (en) * | 2013-04-17 | 2013-07-24 | 常州市华健药用包装材料有限公司 | Medical bacterium filtering and resisting composite material |
| CN104095322A (en) * | 2014-07-31 | 2014-10-15 | 湖南美和美诺生物技术有限公司 | Mask for preventing PM2.5 (particulate matter 2.5) injuries and filtering layer for mask |
| CN113524737A (en) * | 2021-07-08 | 2021-10-22 | 吉祥三宝高科纺织有限公司 | Intermediate composite waterproof moisture-permeable film thermal insulating flocculus and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1309008C (en) * | 1987-05-21 | 1992-10-20 | Brian Farnworth | Skin tight chemical/biological protective suit |
| DE19839758C1 (en) * | 1998-09-01 | 2000-02-17 | Freudenberg Carl Fa | Semifinished material for manufacturing protective clothing for firefighters has a water jet-consolidated 2-layer nonwoven, a lining and a semipermeable membrane |
| GB9827412D0 (en) * | 1998-12-11 | 1999-02-03 | Middleton Nigel J | Breathable articles and fabrics |
-
2003
- 2003-09-29 CN CNB031544509A patent/CN100387162C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181661B (en) * | 2007-12-13 | 2011-07-20 | 中国人民解放军总后勤部军需装备研究所 | Multifunctional ventilating type protection material and preparation method thereof |
| CN102407643A (en) * | 2011-08-31 | 2012-04-11 | 苏州金荣华轻纺实业有限公司 | Soil release textile |
| CN102358071A (en) * | 2011-09-20 | 2012-02-22 | 苏州金荣华轻纺实业有限公司 | Antibacterial textile |
| CN103213334A (en) * | 2013-04-17 | 2013-07-24 | 常州市华健药用包装材料有限公司 | Medical bacterium filtering and resisting composite material |
| CN104095322A (en) * | 2014-07-31 | 2014-10-15 | 湖南美和美诺生物技术有限公司 | Mask for preventing PM2.5 (particulate matter 2.5) injuries and filtering layer for mask |
| CN113524737A (en) * | 2021-07-08 | 2021-10-22 | 吉祥三宝高科纺织有限公司 | Intermediate composite waterproof moisture-permeable film thermal insulating flocculus and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100387162C (en) | 2008-05-14 |
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