CN103284355B - Manufacturing method of dustproof respirator - Google Patents
Manufacturing method of dustproof respirator Download PDFInfo
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- CN103284355B CN103284355B CN201310149314.3A CN201310149314A CN103284355B CN 103284355 B CN103284355 B CN 103284355B CN 201310149314 A CN201310149314 A CN 201310149314A CN 103284355 B CN103284355 B CN 103284355B
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Abstract
The invention discloses a manufacturing method of a dustproof respirator. The manufacturing method comprises the following steps: wrapping layer manufacturing, that is, manufacturing a wrapping layer of the dustproof respirator; adhesive adding, that is, manufacturing a filtering layer containing an adhesive; and dustproof respirator forming, that is, arranging the filtering layer in the wrapping layer to form the dustproof respirator. The invention further discloses the dustproof respirator obtained through the manufacturing method provided by the invention. The dustproof respirator is harmless to human bodies, has the advantages of high air permeability, long quality guarantee period and good dust-removing effect, and particularly has a PM 2.5 (Particulate Matter 2.5) removing effect up to 95%.
Description
Technical field
The present invention relates to a kind of anti-dust respirator, relate in particular to and a kind ofly contain silicone oil or contain silicone oil and the mouth mask of nanocrystal cellulose and preparation method thereof.
Background technology
Quickening along with urban modernization paces, various industrial production have been carried out Rapid Expansion, industrial pollution increases the weight of, thereby particulates concentration is constantly increased, especially along with the development of auto industry, motor vehicle exhaust emission amount rolls up, serious destruction air quality, affected health.In molecule, the fine particle of particle diameter≤2.5 μ m (being PM2.5) can be suspended in air for a long time, if long-term a large amount of suction can have a strong impact on human lung's function, easily suffer from PUD D, when the excessive concentration of PM2.5, even can cause human body dead.Can effectively remove the method for PM2.5 in air is to wear the mouth mask that can filter out PM2.5.The mouth mask of anti-PM2.5 generally adopts charcoal absorption to filter out and sucks the airborne PM2.5 of human body in the market; but the molecule that active carbon itself exists can affect the smoothness of breathing; the long-term mouth mask that contains active carbon that uses, the molecule that active carbon itself contains can cause certain influence to human lung's health.There are in addition some mouth masks to make hemispherical, some translator even, there is the large and defects such as heaviness or complex structure of volume in these mouth masks.
Therefore, be desirable to provide a kind of harmless, simple in structure easy-to-use, gas permeability is high and remove the needs that the effective mouth mask of PM2.5 meets people.
Summary of the invention
For this reason, the present invention proposes a kind of anti-dust respirator addressing the above problem at least partly that can address the above problem and preparation method thereof.
A kind of method of making anti-dust respirator is provided according to an aspect of the present invention, has comprised:
Surrounding layer making step, the surrounding layer of making anti-dust respirator;
Adhesive adds step, makes the filter course that comprises adhesive; And
Anti-dust respirator forms step, described filter course is arranged in described surrounding layer, to make described anti-dust respirator.
According to the present invention, make the method for anti-dust respirator, described filter course generally mediates, thickness generally between 1.0mm～10mm, preferred 5mm; Described filter course is loose reticular fiber structure, infiltrates adhesive (adhesive preferable methyl silicone oil, further preferred ethyl silicon oil) and forms afterwards solid netted air filtration layer.The solid netted filter course that comprises adhesive has greatly increased the collision opportunity of particulate, more easily captures fine particle, is sticked, thereby play the object of dedusting when particulates touch adhesive adhesive.In addition, the preferred nonwoven of surrounding layer, generally in the above and below of filter course, two-layer nonwoven is respectively set, described filter course is clipped in the middle, and by the technique of preparing mouth mask of routine, filter course is sealed, to prevent that silicone oil from leaking out, affect attractive in appearance and mouth mask quality, and play certain dustproof function.In addition in anti-dust respirator forms step, at the upper and lower two-layer nonwoven that respectively compresses of filter course, described nonwoven can be each one deck at least up and down, and preferably each is two-layer up and down.Described nonwoven general thickness is 100 μ m～500 μ m, preferred 300 μ m, and aperture is 2.0 μ m preferably, and preferably the nonwoven forming is knitted in polypropylene fiber silk (PP) spray.Selected nonwoven aperture is moderate, can make to breathe smooth and easy, and can effectively prevent that adhesive (as silicone oil) from oozing out, and guaranteed product quality and outward appearance.In addition, approach the layer of non-woven fabric of human body skin, preferably adopting cloth textile or that pure viscose rayon is made into as bottom surface.Prepare after solid netted air filtration layer, with nonwoven, clamp described filter course, put into ear rope, with high temperature sealing machine, extrude mouth mask, carry out cobalt-60 irradiation-sterilize, be packaged to be product.
Alternatively, the method according to this invention, wherein, it is that adhesive is added in nonwoven that adhesive adds step, this step comprises:
The second soaking step (S1400), puts into adhesive by described nonwoven and soaks 5-10 minute; And
The second centrifugation step (S1500), the centrifugal 5-10 minute of speed by described nonwoven after soaking in adhesive with 5000-10000 rev/min.
The preparation method of anti-dust respirator according to the present invention, while adding adhesive (as silicone oil) in filter course, carry out aforesaid operations, after soaking 5-10 minute, carry out centrifugally operated sloughs unnecessary adhesive (as silicone oil) as far as possible, percentage by weight at centrifugal rear adhesive (as silicone oil) in filter course accounts for 1.0-1.6%, generally accounts for 1.3%.Free adhesive (as silicone oil, especially methyl-silicone oil) is removed by centrifugal, effectively prevented anti-dust respirator deposit with use procedure in have remaining adhesive (as silicone oil) to ooze out, thereby guaranteed product quality and outward appearance.
Alternatively, the method according to this invention wherein, comprised further before described adhesive adds step:
Nanocrystal cellulose adds step: nanocrystal cellulose is added in nonwoven.
Alternatively, the method according to this invention, wherein said nanocrystal cellulose adds step and comprises:
The first soaking step (S1100): described nonwoven is soaked to 5-10 minute in the nanocrystal cellulose colloid aqueous solution of 1-5% by weight;
The first centrifugation step (S1200): the centrifugal 5-10 minute of speed by described nonwoven after soaking in nanocrystal cellulose colloid aqueous solution with 5000-10000 rev/min;
Baking step (S1300): by described immersion nanocrystal cellulose colloid aqueous solution and centrifugal after nonwoven 105-110 ℃ of oven dry.
According to anti-dust respirator of the present invention, can also, on the basis that comprises adhesive (as silicone oil), add nanocrystal cellulose.Described nanocrystal cellulose, refers to nano level, the cellulose of degree of crystallinity between 60-85%.Described nanocrystal cellulose has the effect of water suction and oil suction, therefore after nonwoven was soaked to nanocrystal cellulose, soaking adhesive (as silicone oil) can make adhesive be adsorbed onto uniformly on nonwoven (to be especially adsorbed onto on nanocrystal cellulose) again, form good solid netted air filtration layer, make air filtration layer can better absorb airborne fine particle, reach better dust removing effects.Nanocrystal cellulose is rectangular particle, the general length of selecting is that 150-300nm, diameter are the rod-like nano crystal fibre element that 30-100nm, the degree of polymerization are 160-180, preferred length is 200nm further, diameter 50nm, when the nanocrystal cellulose of this particle size range and length is attached to nonwoven, forms the space network of more intensive microcosmic, and the aperture of nonwoven is further dwindled, the probability that PM2.5 passes through is greatly reduced, so adsorption effect is better.In addition, the nanocrystal cellulose of generally selecting string (as cotton, fiber crops or wood pulp) to prepare through acid hydrolysis, harmless, easy decomposition, pollution-free, belongs to environmental friendliness shaped material.
The method according to this invention, is adding on the basis of adhesive (as silicone oil), while adding nanocrystal cellulose, generally nanocrystal cellulose is dispersed in water and is made colloidal solution.Generally, by nanocrystal cellulose is dispersed in water, when being 28-32MPa, pressure carries out the colloid aqueous solution that homogeneous obtains nanocrystal cellulose.With the nanocrystal cellulose colloid aqueous solution preparing, nonwoven is soaked, then carry out centrifugal and drying and processing.The nanocrystal cellulose that contains 0.1%-1.0% by weight in the nonwoven of the solid netted air filtration layer after above-mentioned processing, is generally 0.5%.
Alternatively, the method according to this invention, described adhesive is at least one in following: polyethylene glycol and vegetable oil that silicone oil, glycerine, propane diols, molecular weight are 200-400.
The method according to this invention, the preferred silicone oil of adhesive, especially preferable methyl silicone oil.Described methyl-silicone oil is a kind of tasteless, nontoxic, harmless to human-body safety high molecular polymer, and it is also best to the adsorption function of fine particle in air in addition.But select polyethylene glycol and vegetable oil that glycerine, propane diols, molecular weight are 200-400 can reach the effect of dedusting too.More excellent at palmitic dust removing effects described in vegetable oil, and completely harmless to human body.When adhesive is selected polyethylene glycol that silicone oil, glycerine, propane diols, molecular weight are 200-400 or other plant oil, it sticks on nonwoven, or while sticking on nanocrystal cellulose, is not easy to be dried, and therefore can keep permanently effective.
Alternatively, the method according to this invention, the length of described nanocrystal cellulose is that 150-300nm, diameter are 30-100nm, preferably length is that 200nm, diameter are 50nm.
Alternatively, the method according to this invention, the degree of polymerization of described nanocrystal cellulose is 160-180.
Alternatively, the method according to this invention, the adhesive that comprises 1.0-1.6% by weight in wherein said filter course and the nanocrystal cellulose of 0.1%-1.0%.
This is the optimum weight percentage that absorbs adhesive and nanocrystal cellulose in nonwoven, so both can reach nonwoven and adsorb enough adhesives (as silicone oil) and nanocrystal cellulose, reach the most effective dust removing effects, again can be not containing the nanocrystal cellulose of free adhesive and free absorption adhesive, prevent adhesive and the nanocrystal cellulose seepage of free state, affect the quality of product and attractive in appearance.
Alternatively, the method according to this invention, described nonwoven is to be the network structure of 1.5-2.5 μ m with the aperture that polypropylene fiber silk or polyethylene filament spray pressure form.
According to the preparation method of anti-dust respirator of the present invention, the nonwoven of selecting polypropylene fiber silk (PP) or polyethylene filament (PE) to make, general aperture is controlled between 1.5-2.5 μ m, and has network structure, common particulate can not only be removed, more PM2.5 can be effectively removed.
According to a further aspect in the invention, provide a kind of anti-dust respirator.
Anti-dust respirator according to the present invention is harmless, gas permeability is high, long shelf-life and good dedusting effect, especially can be up to more than 95% to the dust removing effects of PM2.5.
Accompanying drawing explanation
By reading below detailed description of the preferred embodiment, various other advantages and benefit will become cheer and bright for those of ordinary skills.Accompanying drawing is only for the object of preferred embodiment is shown, and do not think limitation of the present invention.In the accompanying drawings:
Fig. 1 shows according to the preparation method of the anti-dust respirator of one embodiment of the present invention;
Fig. 2 shows according to the schematic cross-section of the anti-dust respirator of one embodiment of the present invention; Wherein,
The first upper strata nonwoven 1, the second upper strata nonwoven 2, filter course 3, second lower floor's nonwoven 4 and first lower floor's nonwoven 5;
Fig. 3 shows the SEM Electronic Speculum figure of the nonwoven that does not add nanocrystal cellulose and silicone oil;
Fig. 4 shows the SEM Electronic Speculum figure of the nonwoven that adds nanocrystal cellulose and silicone oil.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 shows according to the preparation method of the anti-dust respirator of one embodiment of the present invention.According to this method, nonwoven is first processed with nanocrystal cellulose, first enter step S1100 step: the nonwoven before soaking in adhesive soaks 5-10 minute in the nanocrystal cellulose colloid aqueous solution of 1%-5% by weight; Then enter S1200 step: by described nonwoven after soaking in nanocrystal cellulose colloid aqueous solution with 5000-10000 rev/min of centrifugal 5-10 minute; Enter afterwards S1300 step: by described in nanocrystal cellulose colloid aqueous solution, soak and centrifugal after nonwoven 105-110 ℃ of oven dry.Nonwoven after processing in nanocrystal cellulose colloidal solution is carried out to treatment step in adhesive, or directly nonwoven is processed and prepared filter course in adhesive.Be about to the nonwoven after processing or directly nonwoven carried out to the operation of S1400 step in nanocrystal cellulose solution, nonwoven being put into adhesive and soak 5-10 minute; Nonwoven after soaking at adhesive is carried out to the operation of S1500 step, the centrifugal 5-10 minute of speed by the nonwoven after soaking with 5000-10000 rev/min.Prepare solid netted air filtration layer.Prepare after solid netted air filtration layer, with nonwoven, clamp described solid netted air filtration layer, put into ear rope, with high temperature sealing machine, extrude mouth mask, carry out cobalt-60 irradiation-sterilize, be packaged to be product.
According to the present invention, to relate to parameter more for the preparation method of anti-dust respirator, and processing step is more complicated, so specific embodiment is only as the exemplary illustration to specific implementation of the present invention, and do not form limiting the scope of the invention.By usining preparation method's the specific operation process of anti-dust respirator provided by the invention, as embodiment, be described further below.
In addition, in the present invention, step S1400, step S1500 are the indispensable steps of preparation anti-dust respirator of the present invention, step S1100, S1200 and step S1300 are three the whole steps that can select, when solid netted air filtration layer is selected to add nanocrystal cellulose, select step S1100, S1200 and S1300, when not adding nanocrystal cellulose, do not select this three steps.Therefore the embodiment of design designs and obtains on the basis that has comprised S1400 and S1500 in the present embodiment, has also comprised in addition some conventional steps of preparing mouth mask.
According to anti-dust respirator preparation method's of the present invention technological parameter, design following examples the present invention is carried out to exemplary illustration.
Embodiment 1
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, first produce solid netted air filtration layer 3.Selecting thickness is that 1000 operations of carrying out S1400 step of netted acupuncture cotton nonwoven that form are knitted in the polypropylene fiber silk spray of 3mm, length 120mm and width 90mm: described nonwoven is put into methyl-silicone oil and soak 5 minutes; Then described nonwoven after soaking is carried out to the operation of S1500 step in methyl-silicone oil, with the speed of 5000 revs/min centrifugal 5 minutes, in centrifugal rear nonwoven, comprise 1% methyl-silicone oil by weight.Prepare after solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
Embodiment 2
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, first produce solid netted air filtration layer 3.Selecting thickness is that 1000 operations of carrying out S1400 step of netted acupuncture cotton nonwoven that form are knitted in the polypropylene fiber silk spray of 5mm, length 120mm and width 90mm: described nonwoven is put into methyl-silicone oil and soak 10 minutes; Then described nonwoven after soaking is carried out to the operation of S1500 step in methyl-silicone oil, with the speed of 10000 revs/min centrifugal 10 minutes, in centrifugal rear nonwoven, comprise 1.6% methyl-silicone oil by weight.Prepare after solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
Embodiment 3
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, first produce solid netted air filtration layer 3.Selecting thickness is that 3mm, length are that the polyethylene filament spray that is 90mm of 120mm and width is knitted 1000 of netted acupuncture cotton nonwoven that form and carried out S1100 step, in 3% nanocrystal cellulose colloid aqueous solution by weight, soak 5 minutes, described nanocrystal cellulose colloid aqueous solution is that nanocrystal cellulose is dispersed in water, the colloid aqueous solution of 1% the nanocrystal cellulose by weight preparing after homogeneous under the pressure of 28MPa, the nanocrystal cellulose length of selecting is that 150nm, diameter are that 30nm, the degree of polymerization are 160; Nonwoven after soaking in nanocrystal cellulose colloid aqueous solution is entered to S1200 step and carry out the speed operation of centrifugal 10 minutes with 5000 revs/min; Described nonwoven after centrifugal is entered to S1300 step 105 ℃ of operations of drying, and in the nonwoven after oven dry, the content of nanocrystal cellulose is for being 0.1% by weight.The nonwoven that carries out nanocrystal cellulose immersion and carry out after centrifugal drying and processing is carried out to the further processing of methyl-silicone oil.The nonwoven of described oven dry carries out the operation of S1400 step: be about to described nonwoven and put into methyl-silicone oil and soak 5 minutes; Then described nonwoven after soaking is carried out to the operation of S1500 step in methyl-silicone oil, with the speed of 5000 revs/min centrifugal 10 minutes, in centrifugal rear nonwoven, comprise 1.3% methyl-silicone oil by weight.So far, prepared by solid netted air filtration layer 3.After prepared by solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over to the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
Embodiment 4
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, first produce solid netted air filtration layer 3.Selecting thickness is that 5mm, length are that the polypropylene fiber silk spray that is 90mm of 120mm and width is knitted 1000 of netted acupuncture cotton nonwoven that form and carried out S1100 step, in 3% nanocrystal cellulose colloid aqueous solution by weight, soak 10 minutes, described nanocrystal cellulose colloid aqueous solution is that nanocrystal cellulose is dispersed in water, the colloid aqueous solution of 3% the nanocrystal cellulose by weight preparing after homogeneous under the pressure of 32MPa, the nanocrystal cellulose length of selecting is that 300nm, diameter are that 100nm, the degree of polymerization are 180; Nonwoven after soaking in nanocrystal cellulose colloid aqueous solution is entered to S1200 step and carry out the speed operation of centrifugal 10 minutes with 10000 revs/min; Described nonwoven after centrifugal is entered to S1300 step 110 ℃ of operations of drying, and in the nonwoven after oven dry, the content of nanocrystal cellulose is 0.6%.The nonwoven that carries out nanocrystal cellulose immersion and carry out after centrifugal drying and processing is carried out to the further processing of glycerine.The nonwoven of described oven dry carries out the operation of S1400 step: be about to described nonwoven and put into glycerine and soak 10 minutes; Then described nonwoven after soaking is carried out to the operation of S1500 step in glycerine, with the speed of 10000 revs/min centrifugal 10 minutes, in centrifugal rear nonwoven, comprise 1.2% glycerine by weight.So far, prepared by solid netted air filtration layer 3.After prepared by solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over to the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
Embodiment 5
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, first produce solid netted air filtration layer 3.Selecting thickness is that 5mm, length are that the polyethylene filament spray that is 90mm of 120mm and width is knitted 1000 of netted acupuncture cotton nonwoven that form and carried out S1100 step, in 4% nanocrystal cellulose colloid aqueous solution by weight, soak 8 minutes, described nanocrystal cellulose colloid aqueous solution is that nanocrystal cellulose is dispersed in water, the colloid aqueous solution of 4% the nanocrystal cellulose by weight preparing after homogeneous under the pressure of 30MPa, the nanocrystal cellulose length of selecting is that 200nm, diameter are that 50nm, the degree of polymerization are 170; Nonwoven after soaking in nanocrystal cellulose colloid aqueous solution is entered to S1200 step and carry out the speed operation of centrifugal 10 minutes with 8000 revs/min; Described nonwoven after centrifugal is entered to the operation that S1300 step is dried at 105 degree, and in the nonwoven after oven dry, the content of nanocrystal cellulose is 0.7%.The nonwoven that carries out nanocrystal cellulose immersion and carry out after centrifugal drying and processing is carried out to the further processing of propane diols.The nonwoven of described oven dry carries out the operation of S1400 step: be about to described nonwoven and put into propane diols and soak 8 minutes; Then described nonwoven after soaking is carried out to the operation of S1500 step in propane diols, with the speed of 8000 revs/min centrifugal 10 minutes, in centrifugal rear nonwoven, comprise 1.5% propane diols by weight.So far, prepared by solid netted air filtration layer 3.After prepared by solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over to the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
Embodiment 6
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, first produce solid netted air filtration layer 3.Selecting thickness is that 8mm, length are that the polypropylene fiber silk spray that is 90mm of 120mm and width is knitted 1000 of netted acupuncture cotton nonwoven that form and carried out S1100 step, in 4.5% nanocrystal cellulose colloid aqueous solution by weight, soak 7 minutes, described nanocrystal cellulose colloid aqueous solution is that nanocrystal cellulose is dispersed in water, the colloid aqueous solution of 4.5% the nanocrystal cellulose by weight preparing after homogeneous under the pressure of 29MPa, the nanocrystal cellulose length of selecting is that 240nm, diameter are that 80nm, the degree of polymerization are 175; Nonwoven after soaking in nanocrystal cellulose colloid aqueous solution is entered to S1200 step and carry out the speed operation of centrifugal 10 minutes with 7000 revs/min; Described nonwoven after centrifugal is entered to the operation that S1300 step is dried at 108 degree, and in the nonwoven after oven dry, the content of nanocrystal cellulose is 0.7%.The nonwoven that carries out nanocrystal cellulose immersion and carry out after centrifugal drying and processing is carried out to the further processing of polyethylene glycol.The nonwoven of described oven dry carries out the operation of S1400 step: being about to described nonwoven, to put into molecular weight be that the polyethylene glycol of 200-400 soaks 9 minutes; Then described nonwoven after soaking is carried out to the operation of S1500 step in silicone oil, with the speed of 6000 revs/min centrifugal 10 minutes, in centrifugal rear nonwoven, comprise 1.6% silicone oil by weight.So far, prepared by solid netted air filtration layer 3.After prepared by solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over to the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
Embodiment 7
According to shown in Fig. 1 according to the preparation method of anti-dust respirator of the present invention, when containing the large-scale industrial production of nano micro crystal cellulose-silicone oil anti-dust respirator, first produce solid netted air filtration layer 3.Selecting thickness is 5mm, width is that the polypropylene fiber silk spray of 2m is knitted the netted acupuncture cotton nonwoven forming and carried out the continued operation of S1100 and S1200 step, with the similar machine of paper machine roller press in carry out continuous immersion and rolling process (being similar to the post processing of pulping and paper-making), in 4% nanocrystal cellulose colloid aqueous solution by weight, soak and then carry out roll extrusion and remove the remaining nanocrystal cellulose aqueous solution, described nanocrystal cellulose colloid aqueous solution is that nanocrystal cellulose is dispersed in water, the colloid aqueous solution of 4% the nanocrystal cellulose by weight preparing after homogeneous under the pressure of 30MPa, the nanocrystal cellulose length of selecting is 200nm, diameter is 50nm, nonwoven after described roll extrusion is entered to S1300 step with drying at 105 ℃ with the drum of superheated steam.The nonwoven that carries out nanocrystal cellulose immersion and carry out after roll extrusion drying and processing is carried out to palmitic further processing.The nonwoven of described oven dry carries out the operation of S1400 and S1500 step: be about to described nonwoven and put into palm oil and soak then continuous roll extrusion, comprise 1.6% palm oil by weight in centrifugal rear nonwoven.So far, prepared by solid netted air filtration layer 3, according to the size in embodiment 1, cut out.After prepared by solid netted air filtration layer, the first upper strata nonwoven 1 and the second upper strata nonwoven 2 are positioned on solid netted air filtration layer 3 as shown in Figure 2, second lower floor's nonwoven 4 and first lower floor's nonwoven 5 are positioned over to the below of solid netted air filtration layer 3 and clamp solid netted air filtration layer 3, then put into ear rope, with high temperature sealing machine, extrude mouth mask, mouth mask is carried out being packaged to be product after the irradiation-sterilize of cobalt-60.
According to embodiment 1-6, produced good permeability, specious, simple in structure, easily wear, harmless, dust removal efficiency is high, the efficiency of especially removing PM2.5 is high, generally can reach more than 95% anti-dust respirator.The anti-dust respirator of producing by embodiment 1-2 can be realized very high dust-proof effect, more than 95%, and the interpolation of producing according to embodiment 3-7 the anti-dust respirator dust removing effects of nanocrystal cellulose higher, especially can be up to more than 98% except the effect of PM2.5.According to embodiment 7, can carry out mass and produce on a large scale, produce harmless, simple in structure, easily wear and mouth mask that dust removal efficiency is high.And according to the production method of embodiment 1-7, simple for process, easily realize mass and produce on a large scale.Selected in the present invention in addition polyethylene glycol that methyl-silicone oil, glycerine, propane diols, molecular weight are 200-400 and palm oil in each embodiment respectively as adhesive, it sticks on nonwoven in embodiment 1 and 2, in embodiment 3-7, adhesive sticks on nanocrystal cellulose or has sticked on nonwoven and nanocrystal cellulose, adhesive (especially silicone oil) is not easy to be dried, therefore can keep permanently effective, the shelf-life is extended.
In addition; in order to prove that mouth mask of the present invention compares with the mouth mask that does not add nanocrystal cellulose and adhesive, make a marked difference, both have been made respectively to Electronic Speculum figure; wherein, Fig. 3 shows the SEM Electronic Speculum figure of the nonwoven that does not add nanocrystal cellulose and silicone oil; Fig. 4 shows the SEM Electronic Speculum figure of the nonwoven that adds nanocrystal cellulose and silicone oil.The fiber smoother of not adding as can be seen from Figure 3 the nonwoven of nanocrystal cellulose and silicone oil, the cavity between fiber is larger; The coherent substance having added as can be seen from Figure 4 on the fiber of nonwoven of nanocrystal cellulose and silicone oil increases, and the cavity between fiber dwindles.By Electronic Speculum picture, can find out after having added nanocrystal cellulose and silicone oil and can dwindle the cavity between fiber, strengthen dustproof effect.
It should be noted, the present invention will be described rather than limit the invention for above-described embodiment, and those skilled in the art can design alternative embodiment in the situation that do not depart from the scope of claims.
Claims (8)
1. a method of making anti-dust respirator, comprising:
Surrounding layer making step, the surrounding layer of making anti-dust respirator;
Adhesive adds step, makes the filter course that comprises adhesive; And
Anti-dust respirator forms step, described filter course is arranged in described surrounding layer, to make described anti-dust respirator;
Before adding step, described adhesive comprises further: nanocrystal cellulose adds step: nanocrystal cellulose is added in nonwoven, and wherein, described nanocrystal cellulose adds step and comprises:
The first soaking step (S1100): described nonwoven is soaked to 5-10 minute in the nanocrystal cellulose colloid aqueous solution of 1-5% by weight;
The first centrifugation step (S1200): the centrifugal 5-10 minute of speed by described nonwoven after soaking in nanocrystal cellulose colloid aqueous solution with 5000-10000 rev/min;
Baking step (S1300): by described immersion nanocrystal cellulose colloid aqueous solution and centrifugal after nonwoven 105-110 ℃ of oven dry.
2. method according to claim 1, wherein, it is that adhesive is added in nonwoven that adhesive adds step, this step comprises:
The second soaking step (S1400), puts into adhesive by described nonwoven and soaks 5-10 minute; And
The second centrifugation step (S1500), the centrifugal 5-10 minute of speed by described nonwoven after soaking in adhesive with 5000-10000 rev/min.
3. method according to claim 1, wherein, described adhesive is at least one in following: polyethylene glycol and vegetable oil that silicone oil, glycerine, propane diols, molecular weight are 200-400.
4. method according to claim 1, the length of wherein said nanocrystal cellulose is that 150-300nm, diameter are 30-100nm.
5. method according to claim 1, the degree of polymerization of wherein said nanocrystal cellulose is 160-180.
6. method according to claim 1, the adhesive that comprises 1.0-1.6% by weight in wherein said filter course and the nanocrystal cellulose of 0.1-1.0%.
7. method according to claim 1, wherein, described nonwoven is that with polypropylene fiber silk or polyethylene filament spray, to press the aperture forming be the network structure of 1.5-2.5 μ m.
8. the anti-dust respirator obtaining according to claim 1-7 any one preparation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149314.3A CN103284355B (en) | 2013-04-26 | 2013-04-26 | Manufacturing method of dustproof respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310149314.3A CN103284355B (en) | 2013-04-26 | 2013-04-26 | Manufacturing method of dustproof respirator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107232663A (en) * | 2017-07-03 | 2017-10-10 | 南京凤源新材料科技有限公司 | A kind of filter and PM2.5 mouth masks of NCC enhancings filtering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103932427B (en) * | 2014-04-24 | 2016-03-02 | 河海大学常州校区 | The anti-haze of bionical wet type protects type mouth mask entirely |
| CN104207375A (en) * | 2014-09-24 | 2014-12-17 | 常州美胜生物材料有限公司 | Mask for blocking PM2.5 (Particulate Matter 2.5) particles |
| CN104489969A (en) * | 2014-11-25 | 2015-04-08 | 苏州维度丝绸有限公司 | Silk mask |
| CN105768276A (en) * | 2016-05-25 | 2016-07-20 | 刘智懿 | Novel anti-haze mask |
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| JP2003180852A (en) * | 2001-12-18 | 2003-07-02 | Chisso Corp | Throw-away mask |
| KR20100004476A (en) * | 2008-07-04 | 2010-01-13 | 코오롱패션머티리얼 (주) | Dustproof mask |
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| CN2884939Y (en) * | 2005-09-23 | 2007-04-04 | 中国环境科学研究院 | Highly effective light anti-dust respirator based on electrostatic spinning absorption filter material |
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