CN212279960U - Nanofiber membrane protective clothing - Google Patents
Nanofiber membrane protective clothing Download PDFInfo
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- CN212279960U CN212279960U CN202020635750.7U CN202020635750U CN212279960U CN 212279960 U CN212279960 U CN 212279960U CN 202020635750 U CN202020635750 U CN 202020635750U CN 212279960 U CN212279960 U CN 212279960U
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Abstract
The utility model discloses a nanometer fiber film protective clothing, which comprises a cap, a coat, trousers and a shoe cover, wherein the front side of the coat is provided with a zipper, the fabric of the protective clothing comprises an outer layer, an inner layer and an intermediate layer, the intermediate layer comprises a basic layer and a nanometer fiber film layer arranged on the basic layer, the basic layer is non-woven fabric, and the nanometer fiber film layer is combined with the basic layer in an electrostatic spinning mode; the nanofiber membrane layer is adjacent to the inner layer, and the base layer is adjacent to the outer layer; the diameter of the fiber of the nano fiber film layer is 50-200 nm, and the aperture is 30-90 nm; the inner layer and the outer layer are both non-woven fabrics. The utility model discloses nanofiber membrane protective clothing cost is lower, and the filtration isolation is effectual, and the gas permeability is good, more frivolous, has solved current protective clothing and has adopted plastics tectorial membrane, airtight, the problem that can not wear for a long time, uses nanofiber membrane filtration isolation layer in protective clothing production, has increased the optional scope of protective clothing surface fabric structure.
Description
Technical Field
The utility model relates to a protective clothing technical field, concretely relates to nanofiber membrane protective clothing.
Background
Protective clothing is worn by workers in special environments and generally has the functions of isolating germs, harmful ultrafine dust, acidic solution and salt solution. The types of protective clothing commonly used at present are: 1. ordinary pp non-woven fabrics protective clothing, the characteristics are ventilative, dustproof, but waterproof, do not have the function of keeping apart the germ, are used for ordinary clean environment to use, for example electronics factory, plant, food factory, industrial production workshop are dustproof etc. and are used in general environment. 2. The film-covered non-woven protective clothing is air-tight and waterproof, but has good bacterium isolation effect, obvious front and back distinguishing, non-woven fabric on the body-contacting side, no allergy, good hand feeling, and a layer of plastic film on the outer surface to prevent liquid leakage, and is used in the places with pollution and virus. To tectorial membrane non-woven fabrics protective clothing, though have fine fungus effect of isolating, airtight, inside steam that forms easily, the travelling comfort is poor, is unfavorable for staff's healthy, and steam can form the fog on face guard or goggles, influences staff's sight.
Meanwhile, the protective clothing with air permeability and bacteria isolation has extremely high raw material cost, is only used when the highest-grade medical protective clothing is manufactured, does not have the condition of general popularization and application, needs a large amount of protective clothing to protect workers and isolate pollution and viruses when infectious diseases are popular, and the high-grade medical protective clothing cannot be popularized and used due to high cost and brings difficulty to epidemic prevention work, so that the research on the protective clothing with low cost, good protection and isolation effects and air permeability is very necessary.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a nanofiber membrane protective clothing, it adopts three-layer composite structure, uses nanofiber membrane filter layer as protective clothing's intermediate level, and it keeps apart effectually, the gas permeability is strong, the cost is lower.
In order to solve the technical problem, the utility model adopts the following technical scheme:
designing a nanofiber membrane protective garment, which comprises a connected structure consisting of a hat, a coat, trousers and shoe covers, wherein a zipper is arranged on the front side of the coat, the fabric of the protective garment comprises an outer layer, an inner layer and a middle layer, the middle layer comprises a base layer and a nanofiber membrane layer arranged on the base layer, the base layer is non-woven fabric, and the nanofiber membrane layer is combined with the base layer in an electrostatic spinning mode; the nanofiber membrane layer is adjacent to the inner layer, and the base layer is adjacent to the outer layer; the diameter of the fiber of the nanofiber membrane layer is 50-200 nanometers, and the aperture is 30-90 nanometers; the inner layer and the outer layer are both non-woven fabrics.
In above-mentioned technical scheme, this protective clothing adopts three-layer composite construction, outer and inlayer are the non-woven fabrics, the intermediate level is for using basic unit and nanofiber rete, the nanofiber rete adopts electrostatic spinning's mode and substrate non-woven fabrics to combine together, the fiber diameter of nanofiber rete is thinner, the aperture is littleer, fibre wherein is unordered, random distribution, make great specific surface area and higher porosity, physical filtration ability is stronger than melt-blown cloth, because it is electrostatic spinning and makes, it has good electrostatic adsorption filterable ability simultaneously, make this nanofiber rete have the function that physical filtration and electrostatic adsorption keep apart concurrently, it uses basic unit non-woven fabrics as the carrier, constitute an intermediate isolation layer that has good isolation effect and gas permeability jointly. Present tectorial membrane non-woven fabrics protective clothing coats the one deck plastic film on the non-woven fabrics, and its isolation effect belongs to the physics and keeps apart, has also kept apart the air when separating the fungus, does not have filtration and absorbent effect, and airtight can cause inboard steam gathering, travelling comfort poor, influence sight scheduling problem, can not wear for a long time, and the utility model discloses a middle level have the function of filtration isolation, have good gas permeability when separating the fungus.
Preferably, still including setting up the shielding piece in the front portion of jacket, shielding piece one side edge and jacket fixed connection, the position that opposite side edge corresponds the waist is equipped with frenulum one, is equipped with frenulum two in the position of jacket waist the upper portion edge of shielding piece is equipped with the elasticity string rope that is used for hanging on the neck.
When the protective clothing works in a polluted environment or a virus environment, the front side of the body of a worker usually contacts with more pollution sources, bacteria and viruses, and the zipper of the protective clothing is usually arranged on the front side, so that gaps can appear on the front side of the protective clothing, and the protective clothing is not favorable for better protection. The utility model discloses set up at the protective clothing front side and shelter from the piece, shelter from piece one side and fixed with protective clothing jacket one side, the opposite side activity, after the staff has worn the protective clothing, will shelter from the elasticity on piece upper portion and hang the rope on the neck, the waist is fixed together through frenulum one and frenulum two, can play the effect of dual protection to staff's health front side.
Preferably, the area of the shielding piece covers the front side area of the coat, and the length of the lower part of the shielding piece reaches the knee position of the trousers.
Preferably, the fabric of the shielding sheet has the same structure as the fabric of the protective clothing, the nanofiber film layer of the shielding sheet is adjacent to the outer layer of the protective clothing, and the base layer is arranged towards the outer side. The shielding piece has the same structure with the middle isolation layer, so that the protective clothing has better isolation effect.
Preferably, the nanofiber membrane layer has a porosity of 60-80%, so that the nanofiber membrane layer has good air permeability
Preferably, the thickness of the base layer is 45-55 microns, and the thickness of the nanofiber membrane layer is 3-5 microns. The utility model discloses well used intermediate level totality is lighter, thinner, and the gas permeability is better.
Preferably, the nanofiber membrane layer takes polyvinylidene fluoride as a raw material, and the polyvinylidene fluoride raw material used by each square meter of the nanofiber membrane layer is 2-4 g. The material consumption of the nanofiber membrane layer per square meter is very little, and the prepared nanofiber membrane isolation layer is lighter and thinner and has lower cost.
The manufacturing method of the nanofiber membrane protective clothing comprises the following steps:
(1) preparing a filter material: mounting the base material non-woven fabric on a feeding roller of an electrostatic spinning machine, and winding the movable end of the base material non-woven fabric on a winding roller by bypassing a middle transition roller; the electrostatic spinning machine takes polyvinylidene fluoride as a raw material, and a nano fiber film layer is formed by spraying the polyvinylidene fluoride to one side of the base material non-woven fabric through a spray head; cutting and rolling the base material non-woven fabric with the formed nano fiber film layer to obtain a filtering material serving as the middle layer of the protective clothing;
wherein, the polyvinylidene fluoride raw material used for preparing the nano fiber film layer of each square meter is 2 to 4 grams; the thickness of the base material non-woven fabric is 45-55 microns, and the thickness of the nanofiber membrane layer is 3-5 microns; the fiber diameter of the nanofiber membrane layer is 50-200 nanometers, the pore diameter is 30-90 nanometers, and the porosity is 60-80%;
(2) preparing the protective clothing: and (2) taking the filter material obtained in the step (1) as a middle layer of the protective clothing, and taking non-woven fabrics as an outer layer and an inner layer to form a production fabric of the protective clothing, so as to prepare the protective clothing.
Preferably, in the step (2), a shielding piece is manufactured at the front part of the coat, the edge of one side of the shielding piece is fixedly connected with the coat, a first lace is arranged at the edge of the other side of the shielding piece corresponding to the waist, a second lace is arranged at the waist of the coat, and an elastic hanging rope used for hanging on a neck is arranged at the edge of the upper part of the shielding piece;
the area of the shielding piece covers the front side area of the coat, and the length of the lower part of the shielding piece reaches the knee position of the trousers; the shielding piece is made of the filtering material obtained in the step (1), the nanofiber membrane layer of the shielding piece is adjacent to the outer layer of the protective clothing, and the base layer is arranged towards the outer side.
The beneficial effects of the utility model reside in that:
the nanofiber membrane protective clothing adopts the middle layer which takes the non-woven fabric as a carrier and the nanofiber membrane layer as a filter layer, and combines the nanofiber membrane with the non-woven fabric by adopting the electrostatic spinning technology to form the middle isolation layer with strong air permeability and good isolation effect, thereby realizing the combination of dual functions of physical filtration and electrostatic adsorption isolation; compared with the existing film-covered non-woven fabric protective clothing, the film-covered non-woven fabric protective clothing has good filtering and isolating effects, good air permeability, light weight, long protection time, long wearing time and lower cost.
In the prior art, melt-blown cloth is generally adopted as a filtering material, the fiber diameter of the melt-blown cloth is generally 1-5 microns, while the fiber diameter of the nanofiber membrane layer in the utility model is 50-200 nanometers, the pore diameter is 30-90 nanometers, the fibers are thinner, the gaps are smaller, and the material filtering effect is better; because it is electrostatic spinning to make, makes this nanofiber rete have physics concurrently and filters and electrostatic absorption filterable function, and the filter effect is not influenced by the electric charge, and the meltblown fabric can produce the electric charge decay along with time and environmental change and cause the filter effect to reduce, and the utility model provides a nanofiber rete does not have this kind of problem, compares as filtering material with the meltblown fabric, can prolong 20 times's guard time. This nanofiber rete not only the cost is lower than melt-blown fabric, and production speed is also faster, and the productivity can reach 500 kilograms every day, demand when can satisfying protective clothing needs bulk production, is favorable to on a large scale being equipped with and uses, avoids causing the problem that staff's health can't be ensured, epidemic prevention work appears the difficulty because of protective clothing is with high costs and the supply is not enough.
The utility model discloses nanofiber membrane protective clothing sets up the shielding piece in the front side, and one side is fixed with protective clothing jacket lateral part, and the elasticity of upper adoption portion is hung the rope and is hung on the neck, and the mode of frenulum is adopted to the waist side, and it is convenient to dress, can realize the dual protection of protective clothing front side.
The utility model discloses nanofiber membrane protective clothing cost is lower, and the filtration isolation is effectual, and the gas permeability is good, more frivolous, has solved the problem that current protective clothing adopted plastics tectorial membrane, airtight, can not wear for a long time, uses nanofiber membrane filtration isolation layer in protective clothing production, has increased protective clothing surface fabric structure's optional scope, avoids causing the supply and demand unbalance because of the raw materials selection is single, the raw materials price rises, protective clothing output is restricted scheduling problem, is favorable to the market stability.
Drawings
FIG. 1 is a schematic structural view of one embodiment of the nanofiber membrane protective garment of the present invention;
FIG. 2 is a schematic view of the layered structure of the face fabric used in the nanofiber membrane protective garment of FIG. 1;
FIG. 3 is a schematic structural diagram of another embodiment of the nanofiber membrane protective garment of the present invention;
reference numbers in the figures: 1 hat, 2 coat, 3 trousers, 4 shoe covers, 5 zipper, 6 shielding piece, 7 elastic hanging rope, 8 lacing I and 9 lacing II; 10 outer layer, 11 inner layer, 12 basic layer, 13 nanofiber membrane layer.
Detailed Description
The following examples are provided to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way. The apparatus elements referred to in the following examples are, unless otherwise specified, conventional apparatus elements; the industrial raw materials are all conventional industrial raw materials which are sold on the market, if not specifically mentioned.
Example 1: a kind of nanometer fibrous membrane protective clothing, refer to fig. 1-3, including the conjuncted structure that cap 1, jacket 2, trousers 3, shoe cover 4 make up, the front side of jacket 2 has zippers 5, the facing material of the protective clothing includes outer layer 10, inner layer 11 and intermediate layer, the intermediate layer includes the basic layer 12 and nanometer fibrous membranous layer 13 set up on basic layer 12, the basic layer 12 is non-woven fabrics, nanometer fibrous membranous layer 13 is combined together with basic layer 12 through the way of electrostatic spinning; the nanofiber membrane layer 13 is adjacent to the inner layer 11, and the base layer 12 is adjacent to the outer layer 10; the diameter of the fiber of the nano fiber film layer 13 is 50-200 nm, and the aperture is 30-90 nm; the inner layer 11 and the outer layer 10 are both non-woven fabrics.
Wherein, the porosity of the nanofiber membrane layer is 60-80%; the thickness of the basic layer is 45-55 microns, and the thickness of the nanofiber membrane layer is 3-5 microns; the nano-fiber film layer takes polyvinylidene fluoride as a raw material, and the polyvinylidene fluoride raw material used by each square meter of the nano-fiber film layer is 2-4 g.
Example 2: a nanofiber membrane protective garment, referring to fig. 3, is different from embodiment 1 in that the garment further comprises a shielding sheet 6 arranged at the front portion of a coat 2, one side edge of the shielding sheet 6 is fixedly connected with the coat 2, a first tying belt 8 is arranged at the edge of the other side edge corresponding to the waist portion, a second tying belt 9 is arranged at the waist portion of the coat 2, and an elastic hanging rope 7 used for being hung on the neck is arranged at the upper edge of the shielding sheet 6. The area of the shielding sheet 6 covers the front side area of the jacket 2, and the lower length thereof reaches the knee position of the trousers 3.
The fabric of the shielding sheet 6 has the same structure as the fabric of the protective clothing, and the nanofiber film layer of the shielding sheet 6 is adjacent to the outer layer of the protective clothing, and the base layer is arranged towards the outer side.
The manufacturing method of the nanofiber membrane protective clothing comprises the following steps:
(1) preparing a filter material: mounting the base material non-woven fabric on a feeding roller of an electrostatic spinning machine, and winding the movable end of the base material non-woven fabric on a winding roller by bypassing a middle transition roller; the electrostatic spinning machine takes polyvinylidene fluoride as a raw material, and a nano fiber film layer is formed by spraying the polyvinylidene fluoride to one side of the base material non-woven fabric through a spray head; cutting and rolling the base material non-woven fabric with the formed nano fiber film layer to obtain a filtering material serving as the middle layer of the protective clothing;
wherein, the polyvinylidene fluoride raw material used for preparing the nano fiber film layer of each square meter is 2 to 4 grams; the thickness of the base material non-woven fabric is 45-55 microns, and the thickness of the nano fiber film layer is 3-5 microns; the diameter of the fiber of the nano fiber film layer is 50-200 nm, the aperture is 30-90 nm, and the porosity is 60-80%;
(2) preparing the protective clothing: and (2) taking the filter material obtained in the step (1) as a middle layer of the protective clothing, and taking non-woven fabrics as an outer layer and an inner layer to form a production fabric of the protective clothing, so as to prepare the protective clothing.
Further, in the step (2), a shielding piece is manufactured at the front part of the coat, the edge of one side of the shielding piece is fixedly connected with the coat, a first lace is arranged at the edge of the other side of the shielding piece corresponding to the waist, a second lace is arranged at the position of the waist of the coat, and an elastic hanging rope used for hanging on a neck is arranged at the edge of the upper part of the shielding piece;
the area of the shielding piece covers the front side area of the coat, and the length of the lower part of the shielding piece reaches the knee position of the trousers; the shielding piece adopts the filtering material obtained in the step (1), the nanofiber membrane layer of the shielding piece is adjacent to the outer layer of the protective clothing, and the base layer is arranged towards the outer side.
To the utility model discloses in the middle isolation layer that uses carry out "Particle Filtration Efficiency (PFE)" and "pressure differential (DELTA P)" detection, the testing result who obtains is: the filtering efficiency of the middle isolation layer on the non-oily particles is more than or equal to 78 percent, which indicates that the middle isolation layer has good particle filtering efficiency; the pressure difference delta P of the two side surfaces of the middle isolation layer for gas exchange is less than or equal to 38Pa, which indicates that the air permeability is better, the protective clothing made of the middle isolation layer can not generate the problems of air tightness and impermeability, and can avoid the phenomenon that water vapor is gathered at the inner side of the protective clothing due to poor air permeability.
The present invention has been described in detail with reference to the embodiments, but those skilled in the art will understand that the specific parameters in the embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation range of the present invention, and the detailed description is omitted here.
Claims (7)
1. A nanofiber membrane protective clothing comprises a connected structure consisting of a hat, a coat, trousers and shoe covers, wherein a zipper is arranged on the front side of the coat; the nanofiber membrane layer is adjacent to the inner layer, and the base layer is adjacent to the outer layer; the diameter of the fiber of the nanofiber membrane layer is 50-200 nanometers, and the aperture is 30-90 nanometers; the inner layer and the outer layer are both non-woven fabrics.
2. The nanofiber membrane protective clothing according to claim 1, further comprising a shielding sheet arranged at the front part of the upper garment, wherein one side edge of the shielding sheet is fixedly connected with the upper garment, a first tying belt is arranged at the position, corresponding to the waist part, of the other side edge of the shielding sheet, a second tying belt is arranged at the position of the waist part of the upper garment, and an elastic hanging rope used for hanging on the neck is arranged at the upper edge of the shielding sheet.
3. The nanofiber membrane garment as claimed in claim 2, wherein the shielding sheet covers the area of the front side of the upper garment and the lower length is up to the knee position of the trousers.
4. The nanofiber membrane protective clothing according to claim 2, wherein the fabric of the shielding sheet is the same as the fabric of the protective clothing, and the nanofiber membrane layer of the shielding sheet is adjacent to the outer layer of the protective clothing and the base layer is arranged towards the outside.
5. The nanofiber membrane protective garment according to claim 1, wherein the nanofiber membrane layer has a porosity of 60-80%.
6. The nanofiber membrane protective garment according to claim 1, wherein the thickness of the base layer is 45-55 microns and the thickness of the nanofiber membrane layer is 3-5 microns.
7. The nanofiber membrane protective clothing according to claim 1, wherein the nanofiber membrane layer is made of polyvinylidene fluoride, and the polyvinylidene fluoride used in each square meter of the nanofiber membrane layer is 2-4 g.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020635750.7U CN212279960U (en) | 2020-04-24 | 2020-04-24 | Nanofiber membrane protective clothing |
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| CN202020635750.7U CN212279960U (en) | 2020-04-24 | 2020-04-24 | Nanofiber membrane protective clothing |
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| CN212279960U true CN212279960U (en) | 2021-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111387576A (en) * | 2020-04-24 | 2020-07-10 | 河南曼博睿新材料科技有限公司 | Nano fiber film protective clothing and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111387576A (en) * | 2020-04-24 | 2020-07-10 | 河南曼博睿新材料科技有限公司 | Nano fiber film protective clothing and manufacturing method thereof |
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