CN101716359B - Sterilization and pasteurization material and application thereof - Google Patents
Sterilization and pasteurization material and application thereof Download PDFInfo
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- CN101716359B CN101716359B CN 200910241391 CN200910241391A CN101716359B CN 101716359 B CN101716359 B CN 101716359B CN 200910241391 CN200910241391 CN 200910241391 CN 200910241391 A CN200910241391 A CN 200910241391A CN 101716359 B CN101716359 B CN 101716359B
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Abstract
The invention discloses a sterilization and pasteurization material, comprising a substrate, wherein functional groups and sterilization and pasteurization components which can capture bacteria and/or virus are fixed on the surface of the substrate. The substrate is preferably made of non-weaving cloth with water-absorbing property. The invention also discloses a medical protective mask made of the sterilization and pasteurization material. Quaternary ammonium salt, sulfur-contained compounds and sulfoacid-contained compounds which are fixed on the surface of the sterilization and pasteurization material can be specifically combined with cell membranes of bacteria and viruses, actively captures the bacteria and the virus and can cause the sterilized and pasteurized components attached to the surface of the material to rapidly take effect. The sterilization and pasteurization material can rapidly kill the bacteria and viruses in five minutes. The medical protective mask has the functions of sterilization, antivirus, disease prevention, air purification and the like and can prevent the droplet transmission of the viruses.
Description
Technical field
The present invention relates to a kind of bactericidal disinfectant material and application thereof.
Background technology
The mask that tradition is used all adopts gauze to make, and is used for the medical sanitary protection and must meets national standard.Mainly carrying out two protective mask standards at present in the world is Unite States Standard and European standard.U.S.'s occupational safety health institute (NIOSH) is with the standard difference three major types of mask, be respectively N series, R series and P series, N is non-oiliness granule, R, P then are the oiliness granule, but the protection oiliness granule of R level is only imitated can eight hours and the P level does not have this restriction, and this three major types respectively has the standard 95 (95%), 99 (99%), 100 (99.97%) of 3 kinds of filtering efficiencies, therefore totally nine kinds of masks.Belong to non-oiliness granule so use the N level to get final product because biological microgranule more.And the N95 level namely to represent to protect non-oiliness granule filtering efficiency be 95%, and N95 is the most basic in all an authentication grades grade.The standard of the protective mask that China promulgates, main with reference to Unite States Standard, specification requirement will reach the standard of N95 at least.
The technology that adopts of the medical protective mask of Xiao Shouing all is to be filtered into the master in the market, that is: test with 0.075 micron sodium chloride aerosol, and its barriering efficiency is greater than 95% at least.The diameter of virus is usually at the 0.08-0.12 micron, the diameter of antibacterial is usually about 0.5 micron, so this type of mask can be effectively virus concentration to the people is not had menace with falling, or threaten extremely low degree, but mask itself does not have the function of sterilization or sterilization.The technology that these masks rely on only is a kind of passive mechanical filter design, and the microorganism or the interior microorganism of mask that are attached on this type of mask can continue to survive several hours, had greatly strengthened the probability of cross infection.In order to reach the purpose of filtration, the used material of N95 class mask will be sacrificed breathability and comfortableness usually, and product is " airtight " almost.In view of this, break through the research focus that traditional sterilization, sterilization protective mask become the respiratory system protection articles for use.
Summary of the invention
The purpose of this invention is to provide a kind of surface fixedly have can catch antibacterial, virus functional group and the efficient sterilization material of sterilizing composition.
Further aim of the present invention provides the application of above-mentioned material in medical sterilizing product.
Further object of the present invention provides a kind of medical protective mask of making of above-mentioned material, not only has excellent barrier propterty, filter efficiency and reaches more than 95%, also has the good sterilization disinfective action.
For achieving the above object, technical scheme of the present invention provides a kind of bactericidal disinfectant material, comprises substrate, and functional group and the sterilizing composition that can catch antibacterial and/or virus fixedly arranged in stromal surface.Described functional group comes from and can comprise quaternary ammonium salt by chemistry or the physical action material in conjunction with antibacterial and/or virus, and sulfur-containing compound contains in the sulfoacid compound one or more.
Bactericidal disinfectant material of the present invention, described substrate can adopt anyly to be had absorptive can absorption/carrier material of crosslinked/chelating chemical group, as super absorbent resin, high-hydroscopicity plastic foil, non-weaving cloth etc., be preferably and have absorptive non-weaving cloth.The fibrous raw material of wherein said non-weaving cloth is selected from natural fiber, and it comprises cotton, fiber crops, hair, silk, chitin etc.; Or chemical fibre, it comprises polypropylene (polypropylene fibre), terylene (polyester fiber), chinlon (Fypro), polyvinyl (vinal), polyacrylonitrile fibre, viscose fiber, one or more in the acetate fiber etc.; The average fineness of described fibrous raw material is below 2 μ m.The average fineness of described fibrous raw material is the superfine fibre below 0.3 μ m preferably.
Bactericidal disinfectant material of the present invention, described functional group is fixed on stromal surface by graft modification technology with chemical bond; Percent grafting is 50%-500%.
Bactericidal disinfectant material of the present invention, described sterilizing composition comprises triclosan, the trichlorine kappa, to chloroxylenol, climbazole, methyl hydroxybenzoate, biguanide-based antibacterial, organosilicon quaternary ammonium salt, metal nanoparticle and have the chemistry such as natural plant extracts of antibacterial action and in the natural bactericidal agent one or more.Described sterilizing composition is contaminated by coating, ion exchange, and chelating or suction type are incorporated in the substrate; It is fixed that the integration amount can be come according to the required bactericidal effect of the concrete product of using, and can be 1%-20%.
Bactericidal disinfectant material provided by the invention is by catching, dehydration, killing the purpose that mechanism reaches efficient sterilizing, sterilization, is exactly when antibacterial, when virus touches stromal surface specifically, and the functional group that at first can be fixed on substrate is surveyed, locking, catch, because the substrate that adopts has water absorption, captive antibacterial can be dewatered by water-absorption fiber at once, the sterilizing composition of stromal surface kills antibacterial, virus rapidly simultaneously, and whole process as shown in Figure 1.
When bactericidal disinfectant material of the present invention adopts non-weaving cloth when substrate, can be by following technology manufacturing: non-weaving cloth is cleaned up hyperthermia drying with distilled water; To have the chemical compound of functional group of catching antibacterial, virus by graft modification technology and be fixed on the non-weaving cloth surface with chemical bond, at last by coating, contaminate, ion exchange, chelating, or mode such as absorption with the sterilizing composition after arrangement in non-weaving cloth.Described manufacturing process can have certain change according to the difference of substrate, those skilled in the art can make.
Bactericidal disinfectant material of the present invention can be widely used in the medical sterilizing product.As perform the operation with blouse, cap sleeve, shoe cover, mask, face shield, hospital patient, sickbed sheet, batts, pillowcase, fungi-proofing cord; Wet towel, cotton balls, sterilization infantees; Medical proof fabric base fabric, binder base fabric, wound compress, wound cushion, the cloth etc. of sucking blood.
Further, the invention provides a kind of medical protective mask, comprise the mask body, described mask body comprises watertight composition, sterilizing layer, filter course and skin-friendly layer from outside to inside, and wherein said sterilizing layer is made with above-mentioned bactericidal disinfectant material.Described four form a bite cover body through compound making.
Mask provided by the invention, wherein said watertight composition preferably adopt polypropylene spray fusing cloth; It is the filtering material of material that described filter course preferably adopts the activated carbon composite fibre; It is the non-weaving cloth of material that described skin-friendly layer preferably adopts with the natural fiber, most preferably is textile cloth.Medical protective mask provided by the invention can be provided with a nose clip at the upper limb of mask body, and nose clip is made by bent plastic material, and length is not less than 8.5cm; Stretch knit cloth bound edge is adopted in the edge of described mask body, and studs with sealing strip, can fit tightly with people's face; Described mask is the arch mask, and transverse diameter is not less than 14cm, and vertical footpath is not less than 14cm.
Compared with prior art, technical scheme of the present invention has the following advantages:
(1) efficient sterilization material provided by the present invention can be in 5 minutes killing bacteria, virus rapidly.
(2) the preferred not weaving fabric of superfine fiber of efficient sterilization material provided by the present invention is as substrate, because the superfine fibre diameter is very little, has bigger specific surface area, can adsorb the dust above 7 times of own wts, granule, have very strong water absorption simultaneously, absorption speed is fast, and antibacterial, virus are dewatered rapidly.
(3) efficient sterilization material provided by the present invention, the quaternary ammonium salt that the surface is fixing, sulfur-containing compound, contain sulfoacid compound, can be combined by specific cell membrane with antibacterial, virus, initiatively catch antibacterial, virus, and sterilization, disinfection composition that material surface is adhered to play a role fast.
(4) medical protective mask provided by the present invention has excellent barrier propterty, filter efficiency and reaches more than 95%, and air resistance is less than 25mmH
2O.Its integrated protection performance meets the requirement of China's standard (GB19083-2003) N95 grade.
(5) medical protective mask provided by the present invention adopts the multilayered structure design, the texture softness, and comfortable wearing, good air permeability, nose clip and sealing ring can the crooked people who is fit to different shapes of face, and arch design is that mouth and nose have formed the high ventilation space.
(6) medical protective mask provided by the invention has sterilization, antiviral, and diseases prevention, function such as purify air, the droplet transmission of anti-virus in advance is particularly suitable for medical personnel, patients with infectious diseases, prevents the personnel of viral communication and contains the environment of a large amount of antibacterials.
Description of drawings
Fig. 1 is the operation principle of bactericidal disinfectant material of the present invention;
Fig. 2 is the manufacturing process principle schematic of bactericidal disinfectant material of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
(1) at the functional group of fixed trapped antibacterial on the non-weaving cloth, virus: after not weaving fabric of superfine fiber carried out cleaning treatment, be concentration that the aqueous solution of the 3-that contains reactive functional groups (trimethoxy silane base) the propyl-dimethyl octadecyl aliquat of 0.5-1% (percent weight in volume) and an amount of initiator (as dibenzoyl peroxide) evenly is sprayed at and makes it drenched on the non-weaving cloth, after ten minutes under 120-130 ℃ of condition crosslinked 5 minutes again.
(2) the sterilizing composition is contaminated on the non-weaving cloth: triclosan is made into the colloidal sol of 5% (percent weight in volume), is sprayed on the non-weaving cloth that step (1) is handled, obtain the efficient sterilization material through roll extrusion, oven dry.
The sketch map of whole process as shown in Figure 2.
Embodiment 2
(1) at the functional group of fixed trapped antibacterial on the non-weaving cloth, virus: after the superfine fibre polypropylene nonwoven soaked 24h with acetone, be washed till tasteless with distilled water, 105 ℃ of freeze-day with constant temperature, put into then the polymerization bottle that initiator (as dibenzoyl peroxide) and concentration are the reactant liquor of 10% the sulfur-containing compound allyl mercaptan that contains propylene functional group is housed, with nitrogen deoxygenation 5 minutes; Under 100 ℃ of conditions crosslinked 30 minutes then, take out non-weaving cloth, remove residual initiators and monomer for 3-4 time with acetone and 90 ℃ of hot washes, boiled 1 hour with deionized water again.
(2) the sterilizing composition is contaminated on the non-weaving cloth: will be made into 10% solution to chloroxylenol, and be sprayed on the non-weaving cloth that step (1) is handled, and obtain the efficient sterilization material through roll extrusion, oven dry.
Embodiment 3
(1) functional group of fixed trapped antibacterial, virus on non-weaving cloth: polyvinyl alcohol nonwovens is immersed in 7% the phosphoric acid hydrogen amine aqueous solution 2 minutes, 105 ℃ of freeze-day with constant temperature; The non-weaving cloth that to handle then immerses in the concentrated sulphuric acid, and 80 ℃ were heated 90 minutes under nitrogen protection; With distilled water that the non-weaving cloth washing is extremely neutral at last.
(2) the sterilizing composition is contaminated on the non-weaving cloth: the silver nitrate solution of preparation 10%, be sprayed on the non-weaving cloth that step (1) is handled, obtain the efficient sterilization material through roll extrusion, oven dry.
Embodiment 4
(1) functional group of fixed trapped antibacterial, virus on non-weaving cloth: polyvinyl alcohol nonwovens is immersed in the gamma-aminopropyl-triethoxy-silane, and 120 ℃ were heated 12 hours, and take out the cooling back, uses acetone, washing with alcohol successively, freeze-day with constant temperature; The non-weaving cloth that to handle then immerses in the distilled water, adds 10% thioacetamide, dropwise drips 37% formalin after being heated to 90 ℃, after dropwising, and 90 ℃ of heating 1h, cooling is used acetone, ethanol, distilled water wash, freeze-day with constant temperature successively.
(2) the sterilizing composition is contaminated on the non-weaving cloth: trichlorine kappa powder is adsorbed on the non-weaving cloth that step (1) is handled (1: 100), obtains the efficient sterilization material through roll extrusion.
Embodiment 5
(1) at the functional group of fixed trapped antibacterial on the non-weaving cloth, virus: after the superfine fibre polypropylene nonwoven soaked 24h with acetone, be washed till tasteless with distilled water, 105 ℃ of freeze-day with constant temperature, put into then the polymerization bottle of reactant liquor that initiator (as dibenzoyl peroxide) and concentration are 10% carbon-carbon double bonds functional group and sulfonic acid functional group's chemical compound sodium allylsulfonate is housed, with nitrogen deoxygenation 5 minutes; Under uviol lamp, shone 60 minutes then, take out non-weaving cloth, remove residual initiators and monomer for 3-4 time with acetone and 90 ℃ of hot washes, boiled 1 hour with deionized water again.
(2) the sterilizing composition is contaminated on the non-weaving cloth: the non-weaving cloth that the poly hexamethylene biguanide solution soaking with 5% is handled through step (1), make on the non-weaving cloth after the biguanide disinfectant is sequestered in processing, through washing, roll extrusion, oven dry obtain the efficient sterilization material.
Embodiment 6
Make medical protective mask with the efficient sterilization material, it comprises from outside to inside: watertight composition, the sterilizing layer, filter course, skin-friendly layer, wherein the sterilizing layer is embodiment 1 or embodiment 2 or embodiment 3 described efficient sterilization materials, watertight composition adopts polypropylene spray fusing cloth, it is the filtering material of material that filter course adopts the activated carbon composite fibre, and skin-friendly layer adopts textile cloth.Form the mask body with four through compound making.Upper limb at the mask body is provided with a nose clip, and nose clip is made by bent plastic material, and length is not less than 8.5cm; Stretch knit cloth bound edge is adopted in the edge of mask body, and studs with sealing strip, can fit tightly with people's face; Mask is the arch mask.Transverse diameter is not less than 14cm, and vertical footpath is not less than 14cm.
Through test, obtain the bactericidal effect of the sterilizing layer of above-mentioned mask, as shown in table 1:
The bactericidal effect of sterilizing layer (embodiment 1)
| Microorganism | The disease that may cause | Killing rate (90 seconds) |
| Escherichia coli | Enteritis, diarrhoea, urethritis, cystitis, pyelonephritis, peritonitis, appendicitis, septicemia | ＞99.999 |
| Golden yellow Fructus Vitis viniferae ball | Diarrhoea, acute enteritis, vomiting, heating | ＞99.999 |
| Pseudomonas aeruginosa | Purulent lesion | ＞99.999 |
| Candida albicans | Thrush, vaginitis | ＞99.999 |
| E coil k 1 pneumonia | Tracheitis, pneumonia, meningitis, Urinary system inflammation, wound pathological changes | ＞99.999 |
| Staphylococcus albus | Vomiting, diarrhoea | ＞99.999 |
| Aspergillus niger | Grain goes mouldy | 96.111 |
The test result of medical protective mask:
| Sequence number | The sterilizing layer | Resistance mm H 2O | Transmitance | Filter efficiency |
| 1 | Embodiment 1 | 18.55 | 2.89 | 96.52％ |
| 2 | Embodiment 2 | 20.06 | 2.37 | 97.31％ |
| 3 | Embodiment 3 | 20.94 | 2.12 | 97.28％ |
By above-mentioned experimental result as can be seen, the medical protective mask that adopts efficient sterilization material of the present invention to make, its protection efficiency＞95%, sterilizing rate＞99%, gas-flow resistance＜25mmHg, meet fully national standard " medical protective mask specification requirement " (GB19083-2003) in to the specification requirement of antiseptic face mask.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a bactericidal disinfectant material is characterized in that, comprises substrate, and functional group and the sterilizing composition that can catch antibacterial and/or virus fixedly arranged in stromal surface; Described functional group comes from and can be quaternary ammonium salt by chemistry or the physical action material in conjunction with antibacterial and/or virus, contains in the sulfoacid compound one or more;
Described sterilizing composition is triclosan, the trichlorine kappa, to chloroxylenol, climbazole, methyl hydroxybenzoate, biguanide-based antibacterial, organosilicon quaternary ammonium salt, metal nanoparticle and have in the natural plant extracts of antibacterial action one or more, described substrate is for having absorptive non-weaving cloth;
Described bactericidal disinfectant material is by following technology manufacturing:
(1) functional group of fixed trapped antibacterial, virus on non-weaving cloth: described method is a kind of in the following method:
After the superfine fibre polypropylene nonwoven soaked 24h with acetone, be washed till tasteless with distilled water, 105 ℃ of freeze-day with constant temperature, put into then the polymerization bottle that initiator dibenzoyl peroxide and concentration are the reactant liquor of 10% the sulfur-containing compound allyl mercaptan that contains propylene functional group is housed, with nitrogen deoxygenation 5 minutes; Under 100 ℃ of conditions crosslinked 30 minutes then, take out non-weaving cloth, remove residual initiators and monomer for 3-4 time with acetone and 90 ℃ of hot washes, boiled 1 hour with deionized water again;
Polyvinyl alcohol nonwovens is immersed in 7% the phosphoric acid hydrogen amine aqueous solution 2 minutes, 105 ℃ of freeze-day with constant temperature; The non-weaving cloth that to handle then immerses in the concentrated sulphuric acid, and 80 ℃ were heated 90 minutes under nitrogen protection; With distilled water that the non-weaving cloth washing is extremely neutral at last;
Polyvinyl alcohol nonwovens is immersed in the gamma-aminopropyl-triethoxy-silane, and 120 ℃ were heated 12 hours, and take out the cooling back, uses acetone, washing with alcohol successively, freeze-day with constant temperature; The non-weaving cloth that to handle then immerses in the distilled water, adds 10% thioacetamide, dropwise drips 37% formalin after being heated to 90 ℃, after dropwising, and 90 ℃ of heating 1h, cooling is used acetone, ethanol, distilled water wash, freeze-day with constant temperature successively;
After the superfine fibre polypropylene nonwoven soaked 24h with acetone, be washed till tasteless with distilled water, 105 ℃ of freeze-day with constant temperature, put into then the polymerization bottle of reactant liquor that initiator dibenzoyl peroxide and concentration are 10% carbon-carbon double bonds functional group and sulfonic acid functional group's chemical compound sodium allylsulfonate is housed, with nitrogen deoxygenation 5 minutes; Under uviol lamp, shone 60 minutes then, take out non-weaving cloth, remove residual initiators and monomer for 3-4 time with acetone and 90 ℃ of hot washes, boiled 1 hour with deionized water again;
(2) the sterilizing composition is contaminated on the non-weaving cloth.
2. bactericidal disinfectant material as claimed in claim 1 is characterized in that, the fibrous raw material of described non-weaving cloth is selected from natural fiber, and it is in cotton, fiber crops, hair, silk, the chitin one or more; Or chemical fibre, it is in polypropylene, terylene, chinlon, polyvinyl, polyacrylonitrile fibre, viscose fiber, the acetate fiber one or more; The average fineness of described fibrous raw material is below 2 μ m.
3. bactericidal disinfectant material as claimed in claim 2 is characterized in that, the average fineness of described fibrous raw material is below 0.3 μ m.
4. the application of each described bactericidal disinfectant material of claim 1-3 in medical sterilizing product.
5. medical protective mask, it is characterized in that, comprise the mask body, described mask body comprises watertight composition, sterilizing layer, filter course and skin-friendly layer from outside to inside, and wherein said sterilizing layer is made with each described bactericidal disinfectant material of claim 1-3.
6. medical protective mask as claimed in claim 5 is characterized in that, the upper limb of described mask body is provided with a nose clip, and nose clip is made by bent plastic material; Stretch knit cloth bound edge is adopted in the edge of described mask body, and studs with sealing strip, can fit tightly with people's face; Described mask is the arch mask.
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| CN 200910241391 CN101716359B (en) | 2009-12-08 | 2009-12-08 | Sterilization and pasteurization material and application thereof |
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| CN 200910241391 CN101716359B (en) | 2009-12-08 | 2009-12-08 | Sterilization and pasteurization material and application thereof |
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| CN101716359A CN101716359A (en) | 2010-06-02 |
| CN101716359B true CN101716359B (en) | 2013-10-02 |
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| CN106860029B (en) * | 2017-02-17 | 2020-07-28 | 苏州宝丽洁日化有限公司 | Physical antibacterial wet tissue |
| CN107469130A (en) * | 2017-08-24 | 2017-12-15 | 广西师范学院 | Sisal hemp environmental protection hospital gauze and preparation method thereof |
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| CN107898651A (en) * | 2017-11-09 | 2018-04-13 | 苏州宝丽洁日化有限公司 | A kind of acrylamide organosilicon bi-quaternary ammonium salt grafted nonwoven fabric wet tissue and preparation method thereof |
| CN111535033B (en) * | 2020-04-30 | 2023-06-23 | 江阴苏达汇诚复合材料有限公司 | Preparation method and application of iodine antimicrobial microporous fiber material |
| CN111713779A (en) * | 2020-06-30 | 2020-09-29 | 佛山市优特医疗科技有限公司 | Protective mask |
| CN116369318A (en) * | 2023-01-12 | 2023-07-04 | 上海心尔新材料科技股份有限公司 | Long-acting disinfection and sterilization solid material and preparation method thereof |
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