CN203342231U - Dust mask with low respiratory resistance and high dust holding capacity - Google Patents
Dust mask with low respiratory resistance and high dust holding capacity Download PDFInfo
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- CN203342231U CN203342231U CN2013203888400U CN201320388840U CN203342231U CN 203342231 U CN203342231 U CN 203342231U CN 2013203888400 U CN2013203888400 U CN 2013203888400U CN 201320388840 U CN201320388840 U CN 201320388840U CN 203342231 U CN203342231 U CN 203342231U
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Abstract
The utility model relates to a dust mask with low respiratory resistance and high dust holding capacity, and belongs to the technical field of special articles for labor protection. The mask is integrally formed by an exhalation valve, a mask body, a head band and a nosewing edge sealing structure, wherein the mask body is formed by an inner protective layer, a middle filter layer and an outer cover body stacked in sequence. The dust mask with the low respiratory resistance and the high dust holding capacity is characterized in that the inner protective layer is a layer of spunbonded nonwoven, the middle filter layer is a layer of melt blown nonwoven, and the outer cover body is composed by 3-4 layers of hot-wind hot-melt and needle punching nonwovens. The dust mask can reduce the respiratory resistance and improve comfortableness of wearing and dust holding capacity, and has the advantages of being good in wear comfortableness, long in service life, good in sealing performance and the like.
Description
Technical field
The utility model belongs to extraordinary labour protection articles for use technical field, particularly has the anti-dust respirator of low respiratory resistance and high dust containing capacity.
Background technology
Current, the situation is tense for China's dust harzard, the large contingent of dust exposure operating environment, and the pneumoconiosis incidence of disease is higher.Wearing anti-dust respirator is one of important measures of controlling pneumoconiosis.The domestic mouth mask with dust reduction capability generally is comprised of outlet valve, mouth mask body, headband and wing of nose place edge sealing structure at present.But this class anti-dust respirator on domestic market, the ubiquity respiratory resistance is large, it is uncomfortable to wear, dust containing capacity is less than normal causes wearing the problems such as the time is partially short, is the principal element that the restriction mouth mask is worn rate and protection effect raising.Therefore reduce respiratory resistance, strengthen the comfortableness of wearing and increase the trend that dust containing capacity is current anti-dust respirator development.
The utility model content
The purpose of this utility model is for overcoming the weak point of existing anti-dust respirator, designing a kind of anti-dust respirator with low respiratory resistance and high dust containing capacity.Mouth mask of the present utility model can reduce respiratory resistance, improves comfortable wearing and improve dust containing capacity, has the comfortableness of wearing good, the characteristics of long service life, good seal performance.
A kind of anti-dust respirator with low respiratory resistance and high dust containing capacity of the utility model design, one-body molded by outlet valve, mouth mask body, headband and wing of nose place edge sealing structure, described mouth mask body is comprised of the inner protective layer stacked gradually, intermediate filter layer and outer cover body; It is characterized in that, inner protective layer is 1 layer of Spunbonded Nonwovens, and intermediate filter layer is 1 layer of melt blown non-woven, and outer cover body is that 3-4 layer hot blast hot melt and needle-punched non-woven are composited.
Described inner protective layer consists of polypropylene spun-bonded method Nonwovens, and every Gram Mass of this layer of non-weaving cloth is (25-30) g/m
2.
Described intermediate filter layer is meltblown superfine polypropylene fiber non-woven, and the diameter of the fiber of this layer of non-weaving cloth is between the 0.5-4 micron, and every Gram Mass of this layer of non-weaving cloth is (25-30) g/m
2.
Described outer cover body is composited by 3-4 layer non-weaving cloth, every layer of non-weaving cloth be hot blast hot melt and the needle-punched non-woven for being made by 7D three-dimensional crimp polyster fibre, the two component hot-melt adhesive fibers of 4D and 2D/1.5D polypropelene fine fiber blend all, and every Gram Mass of every layer of non-weaving cloth is at (70-80) g/m
2in scope.
Described outlet valve consists of rubber valve plate and valve body, and this valve body is comprised of valve gap and valve base, and this valve gap and valve base fasten in aggregates, and rubber valve plate is placed in valve body.
Characteristics of the present utility model and effect:
The utility model (according to GB GB2626-2006, disposable anti-dust respirator filter efficiency should reach more than 95%) under the prerequisite that keeps mask filtration efficiency has improved the comfortable wearing of mouth mask, and has extended service life.
The accompanying drawing explanation
Fig. 1 is anti-dust respirator front schematic view of the present utility model.
Fig. 2 is the utility model anti-dust respirator schematic rear view.
Fig. 3 is for being mouth mask body cross section structure schematic diagram of the present utility model.
Fig. 4 is valve body structure schematic diagram of the present utility model.
Fig. 5 is that valve body of the present utility model is opened the shape schematic diagram.
The specific embodiment
A kind of anti-dust respirator with low respiratory resistance and high dust containing capacity of the utility model design reaches by reference to the accompanying drawings embodiment and is described in detail as follows:
A kind of anti-dust respirator with low respiratory resistance and high dust containing capacity of the utility model design, as shown in Figure 1, 2, be comprised of outlet valve 1, mouth mask body 2, headband 3 and wing of nose place edge sealing structure 4.
The specific embodiment of each part mentioned above is respectively described below:
The mouth mask body consists of outer cover body, intermediate filter layer and internal layer.21,1 layer of intermediate filter layer 22 of the outer cover body wherein be composited by 3-4 layer non-weaving cloth and 1 layer of inner protective layer 23, as shown in Figure 3.
The specific embodiment and the effect of mouth mask body each several part are respectively described below:
Outer cover body in mouth mask body in the utility model, consist of 3-4 layer non-weaving cloth, and every Gram Mass of every layer of non-weaving cloth is at (70-80) g/m
2in scope.Every layer of outer cover body all is composited for hot blast hot melt and the needle-punched non-woven consisted of 7D three-dimensional crimp polyster fibre, the two component hot-melt adhesive fibers of 4D and 2D/1.5D polypropelene fine fiber.The proportion of composing difference of various model fibers in every layer, make the compactness extent ecto-entad of fiber assembly in whole outer cover body increase gradually (outermost layer 7D fiber 45%, 4D fiber 30%, 2D fiber 25%; Intermediate layer 7D fiber 30%, 4D fiber 40%, 2D fiber 30%; Innermost layer 7D fiber 20%, 4D fiber 40%, 1.5D fiber 40%, reduce successively from the outer ratio to internal layer 7D fiber, the ratio of 2D fiber increases successively), the structure of formation " gradient filtration ".
Its Main Function is as follows:
The effect of outer cover body:
1, moulding effect, as the typing basis of whole mouth mask body, counterpart cover body shape plays fixation.
2, aided filter effect and the effect of appearance dirt, the gas of suction, before entering the intermediate layer filtrate, is at first filtered wherein thicker particle through outer cover body, prevent that it from too much entering intermediate filter layer, causing filter course, dust-loaded over-burden, lost efficacy in advance, thereby increase the dust containing capacity of mouth mask.Also can make up the deficiency of intermediate filter layer filter efficiency simultaneously.
3, to the protective effect of middle filter course filtrate.Because the intermediate filter layer filtrate is to use the meltblown not weaving fabric of polypropylene superfine fiber to make; and through on static electret effect band static to a certain degree; its wearability, stretch-proof and weather-resistant property are all poor, can not directly contact external environment condition, thereby need the protection of outermost material.
Outer cover body of the present utility model substitutes the 2D fiber with a certain proportion of 1.5D polypropylene fiber fine denier fiber in the most inboard one deck.All first through the hot blast hot melting process, process for every layer in outer cover body, rely on the hot melting cohesion performance of two component meldable fibres that various composition fibers are bonded together, then process through acupuncture to a certain degree, make fibrage tentatively be reinforced.Finally on mask forming machine, through the hot-forming outer cover body that obtains the mouth mask body under certain pressure.The 7D fiber plays the effect that makes fibrage fluffy, and while preventing mold pressing, fibrage is pressed to obtain tension, causes gas communication not smooth, and resistance is too large.The skin of 4D fiber consists of the low-melting-point polyethylene composition, and melting at a certain temperature is bonded together the fiber of other compositions.The fiber of 2D and following fineness forms structure fine and close in fibrage, make in layer between fiber space little and be evenly distributed, overall porosity is high and pulp freeness is large, thereby the dust granules through is wherein had to stronger holding back and retardation, realize aided filter and the function of holding thicker grit.
Mouth mask body of the present utility model intermediate layer is the filter course of mouth mask, by (25-30) g/m
2the meltblown not weaving fabric of polypropylene superfine fiber form, fibre diameter is many between the 0.5-4 micron, and makes it become the electret with a certain amount of electrostatic charge through processing technology.The micropore of non-weaving cloth inside is little and many, fiber assembly plays strong holding back and retardation to particle, adding the electrostatic adsorption of fiber to dust, thereby can realize higher filter efficiency at micron-sized dust to particle diameter, is the main body that realizes the mouth mask filtering function.
Because the filter course of mouth mask is to realize airfiltering main body, be also the main source that produces respiratory resistance, be also to form the most expensive part of price in the material of mouth mask simultaneously.In order to realize enough filter efficiencies (>=95%) and lower air drag, also to keep lower product cost simultaneously, the utility model has adopted 25-30g/m
2the melt blown non-woven filtrate, lower than domestic other anti-dust respirators, usually adopt>=40g/m
2the level of filtrate.For the decline of the filter efficiency therefore produced, adopt the outer cover body of mouth mask of special sandwich construction to make up.
Internal layer of the present utility model is by (25-30) g/m
2polypropylene hot rolling Spunbonded Nonwovens form, structurally flexible, hole is more, mainly middle melt blown non-woven filter course filtrate is played a protective role, and prevents that it from directly contacting human face's skin.
Because the filter course of mouth mask is to realize airfiltering main body, be also the main source that produces respiratory resistance, be also to form the most expensive part in the various materials of mouth mask simultaneously.In order to realize enough filter efficiencies (>=95%) and lower air drag, also to keep lower product cost simultaneously, the utility model has adopted 25g/m
2the melt blown non-woven filtrate, lower than domestic other anti-dust respirators, usually adopt>=40g/m
2level.For the decline of filter efficiency, adopt the outer cover body of mouth mask of special sandwich construction to make up.This mouth mask outer layer cover body structure is one of maximum characteristics of the present utility model.This structure can effectively make up the deficiency of mouth mask media filtration efficiency, can keep lower respiratory resistance again, and more rare is the dust containing capacity that has effectively strengthened mouth mask simultaneously.
Outlet valve structure of the present utility model, as shown in Figure 4,5, outlet valve 1 consists of rubber valve plate 11 and valve body 12; This valve body is comprised of valve gap 121 and valve base 122, and valve gap 121 and valve base 122 fasten in aggregates, and rubber valve plate 11 is placed in valve base 122.Rubber valve plate 11 adopts silicon rubber to be made, and adds and adopts (0.4-0.5mm) thickness and processing technology man-hour, makes elastomeric material have good elasticity, thereby can realize lower expiratory resistance.While detecting the outlet valve expiratory resistance, use the flow of 30L/min, record outlet valve expiratory resistance of the present utility model and remain between 20-30Pa, significantly lower than the expiratory resistance level of domestic anti-dust respirator outlet valve >=70Pa in the market.The plastics valve body is made by medical polypropylene material, nontoxic to human body.Valve block and valve body are realized good combination, have good sealing property, and during detection, pressure returns to 0Pa time >=30 second from-1180Pa.This outlet valve can be discharged the gas that the wearer breathes out comparatively fully, when simultaneously air-breathing, can realize effective sealing, prevents that extraneous dust and poisonous and harmful substance from entering mouth mask inside by outlet valve.Rubber diaphragm is through PROCESS FOR TREATMENT, have than the lower expiratory resistance of general anti-dust respirator outlet valve diaphragm, make under the air mass flow of 30L/min and can realize the expiratory resistance lower than 30Pa, well below the expiratory resistance level more than disposable anti-dust respirator 70Pa on domestic market, can discharge more fully the gas of breathing out in mouth mask, improve the comfortableness of wearing.
Mouth mask outer layer cover body structure of the present utility model is one of maximum characteristics of the present utility model.This structure can effectively make up the deficiency of mouth mask media filtration efficiency, can keep lower respiratory resistance again, and more rare is the dust containing capacity that has effectively strengthened mouth mask simultaneously.Add and used the outlet valve with low expiratory resistance, make mouth mask of the present utility model have the advantages that respiratory resistance is low, dust containing capacity is large, thereby significantly strengthened comfortable wearing and the service life of mouth mask.
Embodiment
The anti-dust respirator of the present embodiment is one-body molded by outlet valve, mouth mask body, headband and wing of nose place edge sealing structure, and described mouth mask body is comprised of the inner protective layer stacked gradually, intermediate filter layer and outer cover body; Wherein inner protective layer adopts 28g/m
2spun-bond process hot rolling polypropylene spunbondeds; Intermediate filter layer adopts 25g/m
2the meltblown not weaving fabric of polypropylene superfine fiber, process through the static electret.Outer cover body forms by three layers: in outermost layer, 7D three-dimensional crimp polyster fibre ratio is that the two component heat-bondable fibres of 45%, 4D are that 30%, 2D fiber is 25%; Intermediate layer 7D fiber 30%, 4D fiber 40%, 2D fiber 30%; Innermost layer 7D fiber 20%, 4D fiber 40%, 1.5D fiber 40%), the weight after three layers of fiber composite is 220g/m
2, thickness 2.3mm.
Claims (5)
1. the anti-dust respirator with low respiratory resistance and high dust containing capacity, one-body molded by outlet valve, mouth mask body, headband and wing of nose place edge sealing structure, described mouth mask body is comprised of the inner protective layer stacked gradually, intermediate filter layer and outer cover body; It is characterized in that, inner protective layer is 1 layer of Spunbonded Nonwovens, and intermediate filter layer is 1 layer of melt blown non-woven, and outer cover body is that 3-4 layer hot blast hot melt and needle-punched non-woven are composited.
2. anti-dust respirator as claimed in claim 1, is characterized in that, described inner protective layer consists of polypropylene spun-bonded method Nonwovens, and every Gram Mass of this layer of non-weaving cloth is 25-30g/m
2.
3. anti-dust respirator as claimed in claim 1, is characterized in that, described intermediate filter layer is meltblown superfine polypropylene fiber non-woven, and the diameter of the fiber of this non-weaving cloth is between the 0.5-4 micron, and every Gram Mass of this layer of non-weaving cloth is 25-30g/m
2.
4. anti-dust respirator as claimed in claim 1, it is characterized in that, described outer cover body is composited by 3-4 layer non-weaving cloth, every layer of non-weaving cloth be hot blast hot melt and the needle-punched non-woven for being made by 7D three-dimensional crimp polyster fibre, the two component hot-melt adhesive fibers of 4D and 2D/1.5D polypropelene fine fiber blend all, and every Gram Mass of every layer of non-weaving cloth is at 70-80g/m
2in scope.
5. anti-dust respirator as claimed in claim 1, is characterized in that, described outlet valve consists of rubber valve plate and valve body, and this valve body is comprised of valve gap and valve base, and this valve gap and valve base fasten in aggregates, and rubber valve plate is placed in valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203888400U CN203342231U (en) | 2013-07-02 | 2013-07-02 | Dust mask with low respiratory resistance and high dust holding capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203888400U CN203342231U (en) | 2013-07-02 | 2013-07-02 | Dust mask with low respiratory resistance and high dust holding capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342231U true CN203342231U (en) | 2013-12-18 |
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ID=49742174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203888400U Expired - Fee Related CN203342231U (en) | 2013-07-02 | 2013-07-02 | Dust mask with low respiratory resistance and high dust holding capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203342231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113256249A (en) * | 2021-05-20 | 2021-08-13 | 中国安全生产科学研究院 | Special labor protection article informatization monitoring system and method |
| CN113712314A (en) * | 2021-09-13 | 2021-11-30 | 清渤美(滨州)科技发展有限公司 | Sport mask and manufacturing method thereof |
-
2013
- 2013-07-02 CN CN2013203888400U patent/CN203342231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113256249A (en) * | 2021-05-20 | 2021-08-13 | 中国安全生产科学研究院 | Special labor protection article informatization monitoring system and method |
| CN113712314A (en) * | 2021-09-13 | 2021-11-30 | 清渤美(滨州)科技发展有限公司 | Sport mask and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150702 |
|
| EXPY | Termination of patent right or utility model |