CN1565701A - Highly effective filter medium and its manufacturing method and medical mask manufactured by the same - Google Patents
Highly effective filter medium and its manufacturing method and medical mask manufactured by the same Download PDFInfo
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- CN1565701A CN1565701A CN 03141012 CN03141012A CN1565701A CN 1565701 A CN1565701 A CN 1565701A CN 03141012 CN03141012 CN 03141012 CN 03141012 A CN03141012 A CN 03141012A CN 1565701 A CN1565701 A CN 1565701A
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Abstract
The invention relates to a high efficiency filtering material and its making method and the medical protective mouth mask made thereof. The mouth mask is characterized in that: the mouth mask is made of polypropylene superfine fibre by permanent polarization, and average fineness of the fibre is below 0.3mum; standard of said material is 60-80g/m#+[2]; polarization standard of superfine fibre is 0.15kw. Fineness of the superfine fibre filtering material can be improved from 2-10mum to 0.3mum. The medical protective mouth mask made of the filtering materials comprises waterproof non-woven cloth, superfine fibre filtering material and antibacterial gauze.
Description
Technical field
The articles for use that the present invention relates to a kind of high-efficiency filtering material and manufacture method thereof and make of this filter material are particularly about a kind of ultra tiny fibre with high-efficiency filter material and manufacture method thereof and with the medical protective mask of this ultra tiny fibre with high-efficiency filter material making.
Background technology
Present all kinds of masks of selling on the China market, quality, performance are very different, general surgery plane face mask for example, warp detects on the TSI-8130 instrument, under the 32L/min flow, the NaCl method, filter efficiency has only about 20%.Such mask can only be said so and can be prevented dust, and the medical worker is not had protective action, and is particularly invalid especially to droplet transmission, airborne virus.The cotton cloth respirator that other various hospitals use, testing result sees Table 1:
Table 1: the performance test data of cotton cloth respirator (TSI-8130 NaCI method)
| The number of plies | Flow (rise/minute) | Resistance | Transmitance |
| 8 layers | ??????32 | ????0.3 | ???94.6 |
| 12 layers | ??????32 | ????0.3 | ???94.4 |
| 16 layers | ??????32 | ????0.3 | ???89.6 |
Standard (NIOSH standard) according to American National occupational safety health general administration (National Institute for Occupational Ssfety andHealth) formulation, mask can be divided into N, R, P three major types, they represent three kinds of different protection object: N respectively is non-oiliness granule, R, P then are the oiliness granule, but the protection oiliness granule effect of R level can not surpass 8 hours, and the P level does not have this restriction.This each class of three major types mask has the standard of three kinds of filtering efficiencies: promptly 95 (95%), 99 (99%), 100 (99.97%), therefore have the mask of 9 kinds of standard performances.Because biological granule belongs to non-oiliness granule more, so N95 is a most basic grade, and its expression can be protected non-oiliness granule under the 85L/min flow, assembles mean diameter 0.26 μ, and the filter efficiency of counting particle diameter 0.07 μ particle diameter can reach 95%.
The standard (CEEN149:2001) of Europe protective mask is divided three rank: FFP1, FFP2, FFP3, and that different with Unite States Standard is its detection flow employing 95L/min, with DOP oily hair dirt.
The standard of the protective mask of the up-to-date promulgation of China (GB19083-2003), adopt the standard guidelines of the U.S., just only to adopt a grade be N95 to China's standard, aerosol adopts the non-oiliness granule of NaCl, flow velocity is 85L/min, granule mean diameter 0.26 μ, counting particle diameter 0.07 μ, require filter efficiency to satisfy at 95% o'clock, gas-flow resistance is not more than 35mmH
2O.China and American-European protective mask standard main performance index relatively see Table 2:
Table 2: China and American-European protective mask standard main performance index synopsis
| Rank | Flow L/min | Penetrance % | Resistance mmH 2O |
| ???N95 | ????85 | ????＜5 | ????＜20 |
| ???N99 | ????85 | ????＜1 | ????＜28 |
| ???FFP1 | ????95 | ????≤15 | ????≤16 |
| ???FFP2 | ????95 | ????≤5 | ????≤20 |
| ???FFP3 | ????95 | ????≤1 | ????≤28 |
| ???N95 | ????85 | ????≤5 | ????≤35 |
The cotton cloth respirator that all kinds of masks of selling on the China market or hospital are commonly used, its barrier propterty is compared with the standard (GB19083-2003) of the protective mask of China up-to-date promulgation, or compares with American-European protective mask standard, and all there is a big difference.When especially resisting the SARS epidemic situation on a large scale in 2003 in China, the medical worker of one line, be the effectively infringement of defence SARS virus, often have to be with four layers of cotton cloth respirator, uncomfortable sensations the such as therefore medical worker can occur feeling suffocated, dyspnea, nonetheless the relatively poor cotton cloth respirator of this class barrier propterty still can not be resisted the infringement of virus effectively, causes medical worker's infection.Therefore develop the urgent needs that the medical protective mask that meets China's standard (GB19083-2003) N95 grade has fully become medical institutions and ruck.
At present, the fibrous filter that adopts conventional melt-blown process to produce, can only accomplish Asia level efficiently at present as the air filter material, this is series branch apoplexy due to endogenous wind efficiently and efficiently in thick effects, middle effect, high-medium efficient, Asia, only accomplished degree preferably, but accomplish that the small virus of 0.07 μ m is had good filter protection effect, the existing fibrous filter of conventional melt-blown process production that adopts also can't reach.
Summary of the invention
The purpose of this invention is to provide a kind of ultra tiny fibre with high-efficiency filter material.
Another object of the present invention provides a kind of manufacture method of ultra tiny fibre with high-efficiency filter material.
Another purpose of the present invention provides the medical protective mask that the ultra tiny fibre with high-efficiency filter material of a kind of usefulness is made.
For achieving the above object, the present invention takes following technical scheme:
A kind of high-efficiency filtering material is characterized in that: formed through electret by the ultra tiny fiber of polypropylene, the average fineness of described ultra tiny fiber is below the 0.3 μ m; The quantitative specification of described material is 60～80g/m
2The electret amount of described ultra tiny fiber is 0.15kw.
The quantitative specification of described ultra tiny fiber is 60 the bests.
A kind of manufacture method of high-efficiency filtering material is: get the high fusion index polypropylene chip, put into screw extruder; Polyacrylic polymer in the described screw extruder is squeezed in the multidigit spinneret; The pressed gas of producing by air compressor, by being heated behind the gas heater, spray to the fiber of extruding spinneret with high speed then, with its super times drawing-off, form ultra tiny fiber, fiber is imbedded electret (electrostatic particle) in the fiber, after gathering-device is made ultra tiny fibre with high-efficiency filter material through the electret device then.
The fabrication process parameters of described high-efficiency filtering material is: the pp material melt index is 1200MFR in the described screw extruder, and the air themperature that described air compressor is supplied with is 260 ℃, and gas velocity is 550m/s; Described air compressor dosing pump speed 60RPM, the electret amount is 0.15kw, and following suction air volume is 65%, and last suction air volume is 60%.
Described electret device is that the corona pin that two rows can produce electrostatic particle is installed between spinneret and catcher.
A kind of medical protective mask of making of high-efficiency filtering material, it is characterized in that: it comprises ultra tiny fibre with high-efficiency filter material intermediate layer, be arranged on the long filament that described high-efficiency filtering material outside has water proofing property and do not have anti-layer of cloth, be arranged on the antibacterial gauze layer of described high-efficiency filtering material the inside, described three forms a bite cover body through compound making, the upper limb of described mask body is provided with a nose clip, be respectively arranged with two provincial highways on the both sides of described mask body and the nose clip two layers of material, the bottom of described mask body is protruded a cambered surface slightly downwards, the edge of described mask body, adopt stretch knit cloth bound edge, four jiaos of described mask body are provided with frenulum.
The present invention is owing to adopt above technical scheme, and it has the following advantages:
(1) the ultra tiny fibre with high-efficiency filter material of the present invention is compared with the fiber of conventional melt blown technology production, and fineness can be brought up to below the 0.3 μ m by 2～10 μ m, and fiber surface area is increased, and the fiber fine footpath uniformity and Electrostatic Absorption effect are greatly improved.
(2) the ultra tiny fibre diameter of ultra tiny fibre with high-efficiency filter material fibre web becomes logarithm normal distribution, by adopting new production technology, makes the fiber of identical filament number that different distributions be arranged in fibre web.
(3) ultra tiny fibre with high-efficiency filter material under the prerequisite that does not influence air drag, can effectively improve filter efficiency by electret technology, and barrier propterty has raising significantly.
(4) make the medical protective mask that filter course is made with ultra tiny fibre with high-efficiency filter material, have excellent barrier propterty, filter efficiency and reach more than 95%, 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 of the present invention is by being provided with two provincial highways respectively on the material at opposite sides of mask body both sides and nose clip, and with stretch knit cloth bound edge, therefore make whole mask form a flexible stereo structure, elastic bound edge can be close on the face each position and not reveal any space, four provincial highways can make the middle part elongate again, and cooperate nose clip to make bridge of the nose place both can erect a breathing space, can keep good sealing again; The lower jaw place can be risen by the cambered surface of mask bottom sealing pocket, how not to stay the space.The present invention not only can satisfy the airtight requirement of shelter of various different shapes of face, and can make medical personnel needn't wear which floor mask, just can reach extraordinary protection effect.
Description of drawings
Fig. 1 is a high-efficiency filtering material manufacturing process flow diagram of the present invention
Fig. 2 is an electret device sketch map of the present invention
Fig. 3 is the medical protective mask structural representation that the present invention makes of high-efficiency filtering material
Fig. 4 is a user mode sketch map of the present invention
The specific embodiment
As shown in Figure 1 and Figure 2, ultra tiny fibre with high-efficiency making process of filtering material is: melt index for the section of 1200MFR polyacrylic polymer, is put into screw extruder 1; In dosing pump speed is under the condition of 60RPM, polyacrylic polymer is squeezed in the multidigit spinneret 2 of ejecting device; The pressed gas of producing by air compressor 3, after being heated to be 260 ℃ by gas heater, spray to the fiber of extruding spinneret 2 with high speed, with its super times drawing-off, form ultra tiny fiber, fiber is under corona pin 4 effects of 0.15kw through the electret device in the electret amount then, electret (electrostatic particle) is imbedded in the fiber, after the catcher 5 of gathering-device and up-coiler 6 are made quantitative specification is 60～80g/m
2Ultra tiny fibre with high-efficiency filter material.At this moment, the following suction air volume 65% of catcher 5, last suction air volume 60%.
Ultra tiny fibre with high-efficiency filter material novel production process provided by the invention, compare with the fiber of conventional melt blown technology production, fineness can be brought up to below the 0.3 μ m by original 2～10 μ m, and under this ultra tiny state, fiber surface area is very big, and the fiber fine footpath uniformity and Electrostatic Absorption effect all have raising significantly.The main performance of the ultra tiny fibre with high-efficiency filter material of different size sees Table 3:
Table 3:
| Sequence number | Specification g/m 2 | Resistance mmH 2O | Transmitance % | Filter efficiency % |
| ???1 | ???60 | ????20.10 | ???5.73 | ????94.27 |
| ???2 | 60 electrets | ????20.40 | ???2.53 | ????97.47 |
| ???3 | ???80 | ????25.71 | ???2.36 | ????97.64 |
By last table as can be seen, through the present invention that electret is handled, under same resistance, transmitance reduces, and filter efficiency raises.Through comparing with every performance of China's medical protective mask standard (GB19083-2003) N95 grade, No. 2 ultra tiny fibre with high-efficiency filter materials are made medical protective mask in the option table 3, and its comprehensive technical performance and economic performance are better.It can effectively filter the bacterial virus of particle diameter more than 0.07 μ, and gas-flow resistance is far smaller than GB regulation 35mmH
2The requirement of O.
As Fig. 3, shown in Figure 4, medical protective mask 10 with ultra tiny fibre with high-efficiency filter material making, comprise ultra tiny fibre with high-efficiency filter material intermediate layer, the long filament that has water proofing property outside being arranged on does not have anti-layer of cloth, be arranged on the antibacterial gauze layer of the inside, trilaminate material forms a bite cover body 11 through compound making, the upper limb of mask body 11 is provided with a nose clip 12, be respectively arranged with two provincial highways 13 on the both sides of mask body 11 and nose clip 12 two layers of material, 14, constructed the solid surface of mask, have certain space thereby formed between mask 10 and the human body muzzle, reduced the initial air resistance of human body respiration.Stretch knit cloth bound edge 15 is adopted in the edge of mask body 11, and four jiaos of mask body 11 are provided with frenulum 16.Bound edge 15 has certain plasticity, under the tractive of frenulum 16, can increase the coating ability of 10 pairs of faces of mask, and promptly mask 10 can change with the human body face curve form, is close on it.The bottom of mask body 11 is protruded a cambered surface 17 slightly downwards, make its under the cooperation of elasticity bound edge 15 closely pocket on lower jaw.
The medical protective mask 10 that the present invention makes of ultra tiny fibre with high-efficiency filter material, its protection efficiency 〉=95%, antibiotic rate 〉=95%, gas-flow resistance≤25mmH
2O meets national standard " medical protective mask specification requirement " (GB19083-2003) fully.
Claims (6)
1, a kind of high-efficiency filtering material is characterized in that: formed through electret by the ultra tiny fiber of polypropylene, the average fineness of described ultra tiny fiber is below the 0.3 μ m; The quantitative specification of described material is 60～80g/m
2The electret amount of described ultra tiny fiber is 0.15kw.
2, high-efficiency filtering material as claimed in claim 1 is characterized in that: the quantitative specification of described ultra tiny polypropylene meltblown fibers is 60g/m
2
3, a kind of manufacture method of high-efficiency filtering material is: get the high fusion index polypropylene chip, put into screw extruder; Polyacrylic polymer in the described screw extruder is squeezed in the multidigit spinneret; The pressed gas of producing by air compressor, by being heated behind the gas heater, spray to the fiber of extruding spinneret with high speed then, with its super times drawing-off, form ultra tiny fiber, fiber is imbedded electret in the fiber, after gathering-device is made ultra tiny fibre with high-efficiency filter material through the electret device then.
4, the manufacture method of a kind of high-efficiency filtering material as claimed in claim 3, the fabrication process parameters that it is characterized in that described ultra tiny fibre with high-efficiency filter material is: the pp material melt index is 1200MFR in the described screw extruder, the air themperature that described air compressor is supplied with is 260 ℃, and gas velocity is 550m/s; Described air compressor dosing pump speed 60RPM, the electret amount is 0.15kw, following suction air volume 65%, last suction air volume 60%.
5,, it is characterized in that described electret device is that two row's corona pins are installed between the catcher of the spinneret of ejecting device and gathering-device as the manufacture method of claim 3 or 4 described a kind of ultra tiny fibre with high-efficiency filter materials.
6, a kind of medical protective mask of making of high-efficiency filtering material, it is characterized in that: a kind of medical protective mask of making of high-efficiency filtering material, it is characterized in that: it comprises ultra tiny fibre with high-efficiency filter material intermediate layer, be arranged on the long filament that described high-efficiency filtering material outside has water proofing property and do not have anti-layer of cloth, be arranged on the antibacterial gauze layer of described high-efficiency filtering material the inside, described three forms a bite cover body through compound making, the upper limb of described mask body is provided with a nose clip, be respectively arranged with two provincial highways on the both sides of described mask body and the nose clip two layers of material, the bottom of described mask body is protruded a cambered surface slightly downwards, the edge of described mask body, adopt stretch knit cloth bound edge, four jiaos of described mask body are provided with frenulum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03141012 CN1286542C (en) | 2003-06-13 | 2003-06-13 | Highly effective filter medium and its manufacturing method and medical mask manufactured by the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03141012 CN1286542C (en) | 2003-06-13 | 2003-06-13 | Highly effective filter medium and its manufacturing method and medical mask manufactured by the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1565701A true CN1565701A (en) | 2005-01-19 |
| CN1286542C CN1286542C (en) | 2006-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03141012 Expired - Fee Related CN1286542C (en) | 2003-06-13 | 2003-06-13 | Highly effective filter medium and its manufacturing method and medical mask manufactured by the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114263A (en) * | 2011-02-16 | 2011-07-06 | 徐国元 | Fluoroplastic electret medical bandage |
| CN102335450A (en) * | 2011-10-05 | 2012-02-01 | 徐国元 | Electret medical dressing |
| CN102499493A (en) * | 2011-10-10 | 2012-06-20 | 东华大学 | High-efficiency low-resistance nano anti-virus mask and production method thereof |
| CN106029109A (en) * | 2014-02-28 | 2016-10-12 | 阿文特公司 | Surfactant treatment for a sterilization wrap with reduced occurrence of wet packs after steam sterilization |
| CN111485740A (en) * | 2020-03-16 | 2020-08-04 | 河南森源电气股份有限公司 | Mask processing system |
| CN113208208A (en) * | 2021-05-31 | 2021-08-06 | 河北纳嘉环保科技有限公司 | Aseptic medical gauze mask of antiviral nanofiber |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5072708B2 (en) * | 2008-05-15 | 2012-11-14 | ユニ・チャーム株式会社 | mask |
-
2003
- 2003-06-13 CN CN 03141012 patent/CN1286542C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114263A (en) * | 2011-02-16 | 2011-07-06 | 徐国元 | Fluoroplastic electret medical bandage |
| CN102335450A (en) * | 2011-10-05 | 2012-02-01 | 徐国元 | Electret medical dressing |
| CN102499493A (en) * | 2011-10-10 | 2012-06-20 | 东华大学 | High-efficiency low-resistance nano anti-virus mask and production method thereof |
| CN106029109A (en) * | 2014-02-28 | 2016-10-12 | 阿文特公司 | Surfactant treatment for a sterilization wrap with reduced occurrence of wet packs after steam sterilization |
| US10575916B2 (en) | 2014-02-28 | 2020-03-03 | O&M Halyard, Inc. | Surfactant treatment for a sterilization wrap with reduced occurrence of wet packs after steam sterilization |
| CN111485740A (en) * | 2020-03-16 | 2020-08-04 | 河南森源电气股份有限公司 | Mask processing system |
| CN113208208A (en) * | 2021-05-31 | 2021-08-06 | 河北纳嘉环保科技有限公司 | Aseptic medical gauze mask of antiviral nanofiber |
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| Publication number | Publication date |
|---|---|
| CN1286542C (en) | 2006-11-29 |
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Granted publication date: 20061129 Termination date: 20120613 |