Antibacterial breathable medical fabric

Abstract

The utility model belongs to the technical field of non-woven materials, and relates to an antibacterial breathable medical fabric, in particular to a medical fabric which can be used as a raw material of products such as operating gown, isolation gown, protective clothing and the like. The anti-bacterial and anti-bacterial fabric sequentially comprises a wear-resistant three-resistant outer layer, a first hot melt adhesive bonding layer, an anti-bacterial shielding layer, a second hot melt adhesive bonding layer and a moisture-conducting skin-friendly inner layer from outside to inside. The wear-resistant three-resistance outer layer is provided with an irregularly and tightly arranged fiber structure, the antibacterial shielding layer is provided with an irregularly arranged superfine fiber structure, the moisture-conducting skin-friendly inner layer is internally provided with a capillary channel of a conical hole-shaped structure, and the first hot melt adhesive bonding layer and the second hot melt adhesive bonding layer are internally provided with adhesive structural components playing a role in bonding. According to the fabric, moisture in the body can be rapidly evaporated and permeated, and external microorganisms, blood, water and other substances are prevented from being attached and invaded. The problem that an existing protective garment is stuffy and airtight after being worn is solved, the wearing comfort of medical staff is improved, the wearing time of the medical staff is prolonged, and the risk of secondary infection is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of nonwoven materials, and relates to an antibacterial breathable medical fabric, in particular to a medical fabric which can be used as a raw material for products such as surgical gowns, isolation gowns, and protective clothing. Background Art

[0002] Medical protective clothing, including protective clothing, surgical clothing, isolation clothing, etc., refers to protective clothing used by medical personnel (doctors, nurses, public health personnel, cleaning staff, etc.) and people entering specific medical and health areas (such as patients, hospital visitors, people entering infected areas, etc.). Medical protective clothing, in particular, is an important protective product, and the use of protective clothing is easily caused by the secondary spread of bacteria and viruses and secondary pollution if it is placed or discarded at random.

[0003] At present, the fabrics used for medical protective clothing are usually coated non-woven fabrics. Coated non-woven fabrics are prepared by coating non-woven fabrics with microporous films. Since the thickness of the microporous film is only 30μm, it is very easy to be damaged during use, which can cause infection. Especially in areas with infectious diseases, cross-infection may occur at any time, so in practice, higher requirements are placed on the antibacterial and anti-infection properties of fabrics. In addition, the air permeability of microporous films is poor. Although the moisture permeability of the film can be improved by chemical modification, it is still easy to feel stuffy and uncomfortable when worn for a long time. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an antibacterial and breathable medical fabric to address the deficiencies of the prior art, thereby solving the problems of previous medical protective clothing being easily damaged, having poor air permeability, and feeling stuffy when worn for a long time. At the same time, this fabric has antibacterial properties, further reducing the risk of infection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An antibacterial breathable medical fabric, characterized in that it comprises, from outside to inside, a wear-resistant three-resistance outer layer 1 with a thickness of 0.05-0.15 mm, a first hot melt adhesive layer 2, an antibacterial shielding layer 3 with a thickness of 0.05-0.3 mm, a second hot melt adhesive layer 4 and a moisture-conducting skin-friendly inner layer 5 with a thickness of 0.2-0.55 mm; the wear-resistant three-resistance outer layer 1 has a fiber structure with irregular and tightly arranged fibers, and the moisture-conducting skin-friendly inner layer 5 is uniformly provided with capillaries with a conical pore structure. The first hot melt adhesive layer 2 and the second hot melt adhesive layer 4 are both provided with adhesive structural components that play a bonding role, and the structure of the adhesive structural components includes a dot structure or an irregular strip structure; the antibacterial shielding layer 3 has a randomly arranged ultrafine fiber structure, including an antibacterial melt-blown cloth layer with a diameter of 0.5-10μm, which has a microbial barrier, and the blocking rate of 0.3μm particles is greater than 99.9%; the antibacterial rate is greater than 99%, and the gram weight is 30-50g / m 2 , air permeability 5-10mm / s.

[0007] Furthermore, the wear-resistant triple-resistance outer layer 1 comprises a triple-resistance non-woven fabric layer that has been subjected to high-pressure hot rolling, and has anti-alcohol, anti-blood, and anti-static functions.

[0008] Furthermore, the material of the three-resistance non-woven fabric layer includes any one of polypropylene fiber with a diameter of 10-50 μm, nylon fiber with a diameter of 10-50 μm or polyester fiber with a diameter of 10-50 μm; it has a dense fiber structure and a gram weight of 30-50 g / m 2 , transverse tensile strength 3-4 KN / m, longitudinal tensile strength 6-8 KN / m, bursting resistance 600-800Kpa.

[0009] Furthermore, the moisture-conducting skin-friendly inner layer 5 has a skin-friendly moisture-conducting function, and includes a skin-friendly non-woven fabric layer with a gram weight of 30-60g.

[0010] Furthermore, the diameter of the conical holes in the moisture-conducting skin-friendly inner layer 5 close to the skin is 0.2-0.4 mm, and the diameter of the holes close to the second hot-melt adhesive layer 4 is 0.1-0.2 mm.

[0011] Furthermore, in the adhesive structural component, the size of the dot-shaped structure is 0.05-0.5 mm, and the width of the irregular strip-shaped structure is 0.2-2 mm, and the length is 2-20 mm.

[0012] Furthermore, the first hot melt adhesive layer 2 and the second hot melt adhesive layer 4 are obtained by applying hot melt adhesive through a gluing process such as spraying or scraping, and play a role in bonding the layers.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model provides an antibacterial and breathable medical fabric. The wear-resistant three-resistance outer layer is made of a three-resistance non-woven fabric that has been subjected to high-pressure hot rolling. The non-woven fabric has the characteristics of high strength, smooth surface, three-resistance, and tight fiber structure. It can play the role of wear resistance, not easy to break, smooth and linting, prevention of foreign matter adhesion, and high breathability.

[0015] 2. The utility model provides an antibacterial and breathable medical fabric. The antibacterial shielding layer is made of antibacterial meltblown cloth. It can effectively block microorganisms while having high air permeability, and at the same time has antibacterial and antiviral effects.

[0016] 3. The utility model provides an antibacterial breathable medical fabric, in which the first hot melt adhesive layer and the second hot melt adhesive layer are attached between the layers in a dot-shaped or strip-shaped structure, and the bonding strength is strong while not affecting the breathability of the material itself.

[0017] 4. The utility model provides an antibacterial and breathable medical fabric, in which a capillary channel is arranged in the skin-friendly inner layer, and water vapor continuously diffuses outwards through the surface tension, thereby achieving a moisture-conducting effect. At the same time, the tapered structure of the capillary channel forms a guided diffusion effect. The material is made of fiber material, does not contain a film layer, has a high pore density, and is more conducive to moisture conduction and breathability.

[0018] 5. The utility model provides an antibacterial and breathable medical fabric, which solves the problem of the current medical protective clothing being stuffy and non-breathable, improves the comfort and wearing time of medical staff, and provides safe and effective protection, greatly reducing the risk of secondary infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Attached Figure 1 Schematic diagram of the structure of antibacterial and breathable medical fabric.

[0021] Attached Figure 2 Schematic diagram of the wear-resistant triple-resistance outer surface structure of the antibacterial and breathable medical fabric.

[0022] Attached Figure 3 This is a schematic diagram of the cross-sectional structure of the wear-resistant triple-resistance outer layer of the antibacterial and breathable medical fabric.

[0023] Attached Figure 4 Schematic diagram of the dot structure of the hot melt adhesive layer in the antibacterial and breathable medical fabric.

[0024] Attached Figure 5 Schematic diagram of the irregular strip structure of the hot melt adhesive layer in the antibacterial and breathable medical fabric.

[0025] In the figure: 1 is the wear-resistant triple-resistance outer layer, 2 is the first hot-melt adhesive layer, 3 is the antibacterial shielding layer, 4 is the second hot-melt adhesive layer, and 5 is the moisture-conducting skin-friendly inner layer. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 The utility model provides an antibacterial breathable medical fabric, which includes, from outside to inside, a wear-resistant three-resistance outer layer 1 with a thickness of 0.05-0.15 mm, a first hot melt adhesive layer 2, an antibacterial shielding layer 3 with a thickness of 0.05-0.3 mm, a second hot melt adhesive layer 4, and a moisture-conducting skin-friendly inner layer 5 with a thickness of 0.2-0.55 mm. The fabric is prepared by coating hot melt adhesive and rolling and bonding.

[0028] The wear-resistant three-resistance outer layer 1 has a fiber structure with irregular and tightly arranged fibers, such as Figure 2 and Figure 3 As shown, it includes a three-resistant non-woven fabric layer that has been hot-rolled under high pressure, and has anti-alcohol, anti-blood, and anti-static functions. The material of the three-resistant non-woven fabric layer includes polypropylene fiber material with a diameter of 10-50μm, nylon fiber material with a diameter of 10-50μm, or polyester fiber material with a diameter of 10-50μm, and a gram weight of 30-50g / m 2 , transverse tensile strength 3-4 KN / m, longitudinal tensile strength 6-8 KN / m, bursting strength 600-800Kpa. Compared with ordinary nonwoven fabrics, it has a dense fiber structure, a smooth and lint-free surface morphology, high strength, smooth surface, and three-resistance characteristics, which can play the role of wear resistance, non-breakage, prevention of foreign matter adhesion, and high breathability.

[0029] The antibacterial shielding layer 3 has a randomly arranged ultrafine fiber structure, including an antibacterial meltblown cloth layer with a diameter of 0.5-10μm, which can achieve antibacterial and antiviral effects on the basis of high air permeability, not only to provide safety protection, but also to greatly reduce the risk of secondary pollution. It has microbial shielding, 0.3μm particle blocking rate> 99.9%; antibacterial rate> 99%, gram weight of 30-50g, air permeability of 5-10 mm / s. The antibacterial meltblown cloth is prepared by meltblowing process, including polypropylene meltblown cloth containing quaternary ammonium salt organic antibacterial agent or silver-zinc inorganic metal antibacterial agent.

[0030] The moisture-conducting skin-friendly inner layer 5 has a skin-friendly moisture-conducting function, including a skin-friendly non-woven fabric layer with a gram weight of 30-60g. The skin-friendly non-woven fabric is prepared by a melt spinning process, including a polypropylene skin-friendly non-woven fabric containing polyethylene glycol or polyvinyl alcohol, and a polyethylene terephthalate skin-friendly non-woven fabric. After melt spinning and laying the net into cloth, a capillary channel with a conical hole structure is punched by a punching device, wherein the pore size of the conical hole close to the skin side is 0.2-0.4mm, and the pore size close to the second hot melt adhesive layer 4 is 0.1-0.2mm.

[0031] The first hot melt adhesive layer 2 and the second hot melt adhesive layer 4 are obtained by a hot melt adhesive coating process of spraying or scraping, and play the role of bonding the layers. The layers are uniformly provided with adhesive structural components that play a bonding role, such as Figure 4 and Figure 5 As shown, the structure of the adhesive structural component includes a dot structure or an irregular strip structure, and the dot or strip structure is attached between the layers without affecting the air permeability of the material itself. The size of the dot structure is 0.05-0.5mm, and the width of the irregular strip structure is 0.2-2mm and the length is 2-20mm.

[0032] The antibacterial breathable medical fabric provided by the utility model has a thickness between 0.3-1mm and a gram weight of 90-160g / m 2 , transverse tensile strength 4-5 KN / m, transverse tensile strength 8-10 KN / m, bursting strength 900-1200Kpa. This fabric can solve the problems of easy damage, poor air permeability and stuffiness after long-term wearing of medical protective clothing. At the same time, the fabric is antibacterial, which further reduces the risk of infection.

[0033] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. An antibacterial breathable medical fabric, characterized in that: From the outside to the inside, it comprises a wear-resistant triple-resistance outer layer (1) with a thickness of 0.05-0.15 mm, a first hot-melt adhesive layer (2), an antibacterial shielding layer (3) with a thickness of 0.05-0.3 mm, a second hot-melt adhesive layer (4) and a moisture-conducting skin-friendly inner layer (5) with a thickness of 0.2-0.55 mm; the wear-resistant triple-resistance outer layer (1) has a fiber structure with irregular and tight arrangement, the moisture-conducting skin-friendly inner layer (5) is evenly provided with capillary channels with a conical pore structure, the first hot-melt adhesive layer (2) and the second hot-melt adhesive layer (4) are both provided with adhesive structural components that play a bonding role, and the structure of the adhesive structural components includes a dot structure or an irregular strip structure; the antibacterial shielding layer (3) has a randomly arranged ultrafine fiber structure, including an antibacterial melt-blown cloth layer with a diameter of 0.5-10 μm.

2. The antibacterial breathable medical fabric according to claim 1, characterized in that: The wear-resistant three-resistance outer layer (1) comprises a three-resistance non-woven fabric layer that has been subjected to high-pressure hot rolling.

3. The antibacterial breathable medical fabric according to claim 2, characterized in that: The material of the three-resistance non-woven fabric layer includes polypropylene fiber with a diameter of 10-50 μm, nylon fiber with a diameter of 10-50 μm or polyester fiber with a diameter of 10-50 μm; it has a dense fiber structure and a gram weight of 30-50 g / m 2 .

4. The antibacterial breathable medical fabric according to claim 1, characterized in that: The moisture-conducting skin-friendly inner layer (5) has a skin-friendly moisture-conducting function, and comprises a skin-friendly non-woven fabric layer with a gram weight of 30-60 g.

5. The antibacterial breathable medical fabric according to any one of claims 1 to 4, characterized in that: The diameter of the conical holes in the moisture-conducting skin-friendly inner layer (5) close to the skin is 0.2-0.4 mm, and the diameter of the holes close to the second hot-melt adhesive layer (4) is 0.1-0.2 mm.

6. The antibacterial breathable medical fabric according to claim 5, characterized in that: In the adhesive structural component, the size of the dot-shaped structure is 0.05-0.5 mm, and the width of the irregular strip-shaped structure is 0.2-2 mm and the length is 2-20 mm.

7. The antibacterial breathable medical fabric according to claim 6, characterized in that: The first hot melt adhesive layer (2) and the second hot melt adhesive layer (4) are obtained by applying hot melt adhesive through a gluing process such as spraying or scraping.

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