CN217435178U - High-breathability nanofiber medical protective clothing fabric and medical protective clothing - Google Patents
High-breathability nanofiber medical protective clothing fabric and medical protective clothing Download PDFInfo
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- CN217435178U CN217435178U CN202123449827.5U CN202123449827U CN217435178U CN 217435178 U CN217435178 U CN 217435178U CN 202123449827 U CN202123449827 U CN 202123449827U CN 217435178 U CN217435178 U CN 217435178U
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Abstract
The embodiment of the utility model provides a medical protective clothing surface fabric of high ventilative nanofiber and medical protective clothing relates to protective clothing technical field. Aiming at improving the problem of poor air permeability of the medical protective clothing fabric. The high-permeability nanofiber medical protective clothing fabric comprises an inner layer, a composite filter layer and a surface layer which are sequentially stacked; the composite filter layer comprises a nanofiber layer and a melt-blown non-woven fabric layer; the nanofiber layer is superposed on the inner layer, and the melt-blown non-woven fabric layer is superposed on the nanofiber layer. The medical protective clothing is made of high-permeability nanofiber medical protective clothing fabric. The composite filter layer adopts a melt-blown non-woven fabric layer as a primary filter layer, and the nanofiber layer as a secondary filter layer, so that the filter resistance is lower and the air permeability is better compared with that of a single filter layer; in addition, the melt-blown fabric has high production efficiency and low production efficiency of the nanofiber layer, and the use amount of the nanofibers can be greatly reduced by using the composite filter layer, so that the production efficiency of the high-permeability nanofiber medical protective clothing fabric is greatly improved.
Description
Technical Field
The utility model relates to a protective clothing technical field particularly, relates to a medical protective clothing surface fabric of high ventilative nanofiber and medical protective clothing.
Background
The medical protective clothing mainly has the functions of shielding and blocking bacteria, body fluid and external infectious substances, can effectively isolate external viruses and pollution, and protects the life health and safety of medical staff. At present, the domestic medical protective clothing is mainly prepared from SMS non-woven fabrics, coating non-woven fabrics, breathable film non-woven fabrics, DuPont Tyvek flash evaporation non-woven fabrics and other fabrics. These types of protective clothing fabrics have the defects of poor thermal-wet comfort, poor air and moisture permeability and sultry accumulated sweat, and can bring physical discomfort to medical staff after long-term wearing.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model includes, for example, provide a high ventilative medical protective clothing surface fabric of nanofiber, it can improve the poor problem of medical protective clothing surface fabric gas permeability.
The purpose of the utility model is also to provide a medical protective clothing, for example, which can improve the problem of poor air permeability of the medical protective clothing fabric.
The embodiment of the utility model discloses a can realize like this:
the embodiment of the utility model provides a high-permeability nanofiber medical protective clothing fabric, which comprises an inner layer, a composite filter layer and a surface layer which are sequentially overlapped;
the composite filter layer comprises a nanofiber layer and a melt-blown non-woven fabric layer; the nanofiber layer is superposed on the inner layer, and the melt-blown nonwoven fabric layer is superposed on the nanofiber layer.
In addition, the embodiment of the utility model provides a high ventilative nanofiber medical protective clothing surface fabric can also have following additional technical characterstic:
optionally, the composite filtration layer further comprises a nonwoven support layer; the non-woven fabric supporting layer, the nanofiber layer and the melt-blown non-woven fabric layer are sequentially stacked.
Optionally, the material of the non-woven fabric support layer is melt-blown non-woven fabric or spun-bonded non-woven fabric.
Optionally, the inner layer is made of spunlace nonwoven fabric.
Optionally, the spunlace nonwoven fabric is a pure cotton spunlace nonwoven fabric, a viscose spunlace nonwoven fabric or an acetate spunlace nonwoven fabric.
Optionally, the material of the surface layer is a flame-retardant three-resistance non-woven fabric.
Optionally, the flame-retardant three-resistant non-woven fabric is a flame-retardant three-resistant spun-bonded non-woven fabric or a flame-retardant three-resistant water-punched non-woven fabric.
Optionally, the nanofiber layer is made of nanofibers prepared by a solution electrospinning technology.
Optionally, the polymer material of the nanofiber layer is one or a combination of PVDF-polyvinylidene fluoride, PAN-polyacrylonitrile, PLA-polylactic acid, PCL-polycaprolactone, PA-polyamide, PSU-polysulfone, PES-polyethersulfone, PS-polystyrene, PU-polyurethane, CA-cellulose acetate, PMMA-polymethylmethacrylate, and PVA-polyvinyl alcohol.
The embodiment of the utility model also provides a medical protective clothing, is formed by the preparation of the medical protective clothing surface fabric of high ventilative nanofiber.
The utility model discloses medical protective clothing surface fabric of high ventilative nanofiber and medical protective clothing's beneficial effect includes, for example:
the high-permeability nanofiber medical protective clothing fabric comprises an inner layer, a composite filter layer and a surface layer which are sequentially stacked; the composite filter layer comprises a nanofiber layer and a melt-blown non-woven fabric layer; the nanofiber layer is superposed on the inner layer, and the melt-blown non-woven fabric layer is superposed on the nanofiber layer.
The composite filter layer adopts a melt-blown non-woven fabric layer as a primary filter layer, and the nanofiber layer as a secondary filter layer, so that the filter resistance is lower and the air permeability is better compared with that of a single filter layer; in addition, the melt-blown fabric has high production efficiency and low production efficiency of the nanofiber layer, and the use amount of the nanofibers can be greatly reduced by using the composite filter layer, so that the production efficiency of the high-permeability nanofiber medical protective clothing fabric is greatly improved.
The medical protective clothing is made of the high-breathability nanofiber medical protective clothing fabric, and the problem of poor breathability of the medical protective clothing fabric can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a high-permeability nanofiber medical protective clothing fabric provided by an embodiment of the present invention.
An icon: 10-high-breathability nanofiber medical protective clothing fabric; 100-inner layer; 200-a composite filtration layer; 210-a non-woven fabric support layer; 220-a nanofiber layer; 230-melt-blown non-woven fabric layer; 300-surface layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "up", "down", "inside", "outside", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The high-permeability nanofiber medical protective clothing fabric 10 provided in this embodiment is described in detail below with reference to fig. 1.
Referring to fig. 1, an embodiment of the present invention provides a high-permeability nanofiber medical protective clothing fabric 10, which includes an inner layer 100, a composite filter layer 200, and a surface layer 300, which are sequentially stacked; the composite filtration layer 200 includes a nanofiber layer 220 and a meltblown nonwoven layer 230; nanofiber layer 220 is laminated to inner layer 100 and meltblown nonwoven layer 230 is laminated to nanofiber layer 220.
In this embodiment, the inner layer 100, the nanofiber layer 220, the meltblown nonwoven layer 230, and the face layer 300 are arranged in this order from the inside to the outside.
The composite filtering layer 200 adopts the melt-blown non-woven fabric layer 230 as a primary filtering layer and the nanofiber layer 220 as a secondary filtering layer, and compared with a single filtering layer, the composite filtering layer has lower filtering resistance and better air permeability; in addition, the production efficiency of the melt-blown fabric is high, the production efficiency of the nanofiber layer 220 is low, the usage amount of the nanofibers can be greatly reduced by using the composite filter layer 200, and the production efficiency of the high-permeability nanofiber medical protective clothing fabric 10 is greatly improved.
Specifically, the grammage of the meltblown nonwoven layer 230 in the composite filter layer 200 is 20-40 gsm.
In this embodiment, the nanofiber layer 220 is made of nanofibers produced by solution electrospinning. The principle is that under the action of a high-voltage electric field, an electrified polymer spinning solution is drawn and thinned under the action of an electric field force, and solvent volatilization and fiber solidification are accompanied to form the nanofiber.
In this embodiment, the polymer material of the nanofiber layer 220 is one or a combination of PVDF-polyvinylidene fluoride, PAN-polyacrylonitrile, PLA-polylactic acid, PCL-polycaprolactone, PA-polyamide, PSU-polysulfone, PES-polyethersulfone, PS-polystyrene, PU-polyurethane, CA-cellulose acetate, PMMA-polymethylmethacrylate, and PVA-polyvinyl alcohol.
In this embodiment, the nanofiber layer 220 has a fiber diameter of 50-300 nm. The diameter of the nano fiber prepared by the electrostatic spinning technology is between 50 and 300nm, which is far smaller than the diameters (0.5 to 10 mu m) of the melt-blown fiber and the flash evaporation non-woven fabric fiber, and the nano fiber is used as the filtering material of the medical protective clothing, and has better barrier property and air permeability. The nanofiber layer 220 has a grammage of 0.5-5 gsm. By regulating and controlling different fiber diameters and gram weights, the nanofiber membranes with different filtering performances can be obtained.
In this embodiment, the composite filtration layer 200 further comprises a nonwoven support layer 210; the non-woven fabric support layer 210, the nanofiber layer 220, and the meltblown non-woven fabric layer 230 are sequentially stacked. The nanofiber layer 220 has a weak mechanical strength, and the non-woven fabric support layer 210 can well protect the nanofiber layer.
Specifically, the material of the nonwoven fabric support layer 210 is meltblown or spunbonded.
Specifically, the grammage of the nonwoven support layer 210 in the composite filter layer 200 is 10-30 gsm.
In this embodiment, the material of the inner layer 100 is spunlace nonwoven fabric. The spunlace nonwoven fabric is soft, skin-friendly, good in water absorption and better in human body comfort.
Specifically, the spunlace nonwoven fabric is a pure cotton spunlace nonwoven fabric, a viscose spunlace nonwoven fabric or an acetate spunlace nonwoven fabric.
Specifically, the grammage of the spunlace nonwoven fabric of the inner layer 100 is 15-30 gsm. The inner layer 100 attached to the human body has the functions of softness, skin-friendly touch, moisture absorption and perspiration, and the human body comfort is good.
In this embodiment, the material of the surface layer 300 is a flame-retardant three-resistant non-woven fabric. Wherein, the 'three-resistance' refers to the blood resistance, the alcohol resistance and the antistatic property.
Specifically, the flame-retardant three-resistant non-woven fabric is a flame-retardant three-resistant spun-bonded non-woven fabric or a flame-retardant three-resistant spunlace non-woven fabric.
Specifically, the gram weight of the flame-retardant three-resistant non-woven fabric of the surface layer 300 is 20-50gsm, and the requirements of medical protective clothing on flame retardance, liquid barrier and static resistance are met.
According to the high-breathability nanofiber medical protective clothing fabric 10 provided by the embodiment, the preparation method comprises the following steps:
step (1), preparing a spinning solution: and adding the spinning polymer into a corresponding solvent, and fully dissolving the spinning polymer by stirring to obtain a spinning solution with a certain mass concentration.
Step (2), electrostatic spinning: and (2) spinning the spinning solution prepared in the step (1) into a nanofiber membrane through electrostatic spinning equipment, and depositing the nanofiber membrane on the non-woven fabric support layer 210 to obtain a nanofiber filter layer/non-woven fabric support layer 210 composite layer.
Step (3), composite reinforcement: ultrasonically compounding and reinforcing the nanofiber filter layer/non-woven fabric support layer 210 composite layer prepared in the step (2) and the melt-blown primary filter layer into a composite filter layer 200, wherein the nanofiber layer 220 is arranged between the melt-blown non-woven fabric layer 230 and the non-woven fabric support layer 210; and then the surface layer 300, the composite filter layer 200 and the inner layer 100 are compounded and reinforced into the nano-fiber medical protective clothing fabric through lamination.
The spinning polymer is one or the combination of the nano-fiber materials listed above, and the mass concentration of the polymer in the spinning solution is 5-50%.
The solvent is one or the combination of DMF (dimethylformamide), DMAc (dimethylacetamide), DMSO (dimethylsulfoxide), TCM (trichloromethane), FA (formic acid), AcA (acetic acid), HFIP (hexafluoroisopropanol), THF (tetrahydrofuran), TFE (trifluoroethanol), Act (acetone), EtOH (ethanol), EAc (ethyl acetate), deionized water.
The spinning parameters of the electrostatic spinning equipment are that the spinning voltage is 20-100kV, the spinning distance is 10-30cm, the environmental temperature is 20-40 ℃, and the environmental humidity is 20-40%.
The high-permeability nanofiber medical protective clothing fabric 10 provided by the embodiment at least has the following advantages:
the composite filter layer 200 is a graded composite filter layer 200 structure composed of a melt-blown primary filter layer, a nanofiber filter layer, and a non-woven fabric support layer 210, and the air permeability and production efficiency are superior to those of a single filter layer.
The inner layer 100 of the protective clothing fabric is made of spunlace non-woven fabrics, so that the protective clothing fabric has the functions of softness, skin-friendly touch, moisture absorption and perspiration, and is good in human body comfort.
The embodiment also provides medical protective clothing which is made of the high-breathability nanofiber medical protective clothing fabric 10. The medical protective clothing can be manufactured according to the conventional production process of the medical protective clothing. The problem of poor air permeability of the conventional medical protective clothing fabric can be solved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a high medical protective clothing surface fabric of ventilative nanofiber which characterized in that includes:
the inner layer (100), the composite filter layer (200) and the surface layer (300) are sequentially stacked;
the composite filter layer (200) includes a nanofiber layer (220) and a meltblown nonwoven layer (230); the nanofiber layer (220) is superimposed on the inner layer (100), and the meltblown nonwoven layer (230) is superimposed on the nanofiber layer (220).
2. The high-breathability nanofiber medical protective clothing fabric as claimed in claim 1, wherein:
the composite filtration layer (200) further comprises a nonwoven support layer (210); the non-woven fabric support layer (210), the nanofiber layer (220) and the melt-blown non-woven fabric layer (230) are sequentially stacked.
3. The high-breathability nanofiber medical protective clothing fabric as claimed in claim 2, wherein:
the non-woven fabric support layer (210) is made of melt-blown non-woven fabric or spun-bonded non-woven fabric.
4. The high-breathability nanofiber medical protective clothing fabric according to any one of claims 1 to 3, characterized in that:
the inner layer (100) is made of spunlace non-woven fabric.
5. The high-breathability nanofiber medical protective clothing fabric as claimed in claim 4, wherein:
the spunlace non-woven fabric is a pure cotton spunlace non-woven fabric, a viscose spunlace non-woven fabric or an acetate spunlace non-woven fabric.
6. The high-breathability nanofiber medical protective clothing fabric as claimed in claim 4, wherein:
the surface layer (300) is made of flame-retardant three-resistance non-woven fabric.
7. The high-breathability nanofiber medical protective clothing fabric as claimed in claim 6, wherein:
the flame-retardant three-resistant non-woven fabric is a flame-retardant three-resistant spun-bonded non-woven fabric or a flame-retardant three-resistant spunlaced non-woven fabric.
8. The high-breathability nanofiber medical protective clothing fabric according to any one of claims 1 to 3, characterized in that:
the nanofiber layer (220) is made of nanofibers prepared by a solution electrostatic spinning technology.
9. The high-breathability nanofiber medical protective clothing fabric as claimed in claim 8, wherein:
the polymer material of the nanofiber layer (220) is one of PVDF-polyvinylidene fluoride, PAN-polyacrylonitrile, PLA-polylactic acid, PCL-polycaprolactone, PA-polyamide, PSU-polysulfone, PES-polyether sulfone, PS-polystyrene, PU-polyurethane, CA-cellulose acetate, PMMA-polymethyl methacrylate and PVA-polyvinyl alcohol.
10. The medical protective clothing is characterized in that the medical protective clothing is made of the high-breathability nanofiber medical protective clothing fabric of any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123449827.5U CN217435178U (en) | 2021-12-31 | 2021-12-31 | High-breathability nanofiber medical protective clothing fabric and medical protective clothing |
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| CN202123449827.5U CN217435178U (en) | 2021-12-31 | 2021-12-31 | High-breathability nanofiber medical protective clothing fabric and medical protective clothing |
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