Chemical-defense antibacterial temperature-sensing breathable glove and preparation method thereof

Abstract

The embodiment of the invention provides a chemical-defense antibacterial temperature-sensing breathable glove and a preparation method. The chemical-defense antibacterial temperature-sensing breathable glove comprises a chemical-defense layer and a touch layer from outside to inside, wherein the chemical protection layer is made of fluorinated nitrile rubber, and the thickness of the chemical protection layer is 0.08-0.12 mm; the tactile layer is made of a nanoscale TPU film, the thickness is 20-50 nm, and the surface roughness Ra is smaller than or equal to 0.1 micron. The preparation method of the anti-chemical antibacterial temperature-sensitive breathable glove specifically comprises the following steps: step 1, outer layer forming: dipping a hand mold into fluorinated butyronitrile latex, and drying to form the anti-chemical layer; and step 2, tactile layer spraying: uniformly spraying a nano TPU solution on the inner surface of the outer layer by adopting an electrostatic spraying process, and drying to form a continuous film. The glove can achieve chemical protection for more than 12 hours, and the tactile conduction error is lower than 0.8 DEG C. Meanwhile, the breathable layer and the antibacterial layer can keep the humidity of the working state to be less than 15%, and 24-hour long-acting antibacterial effect is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of protective equipment, and particularly relates to an ultra-thin glove with composite protection functions, which is particularly suitable for scenarios such as hair styling and chemical industry that require long-term contact with corrosive chemicals. Background Art

[0002] The existing protective gloves have the following technical defects:

[0003] 1. Touch and protection cannot be achieved simultaneously: Thick nitrile gloves (thickness ≥ 0.3 mm) lead to a decrease in tactile sensitivity (water temperature perception error ≥ 2 °C);

[0004] 2. Poor air permeability: The air permeability of traditional materials is < 800 g / ㎡·24 h, and sweat accumulation occurs after wearing for 4 hours;

[0005] 3. Short antibacterial duration: Ordinary antibacterial coatings only maintain an antibacterial effect for 6 hours (antibacterial rate < 90%);

[0006] 4. Single chemical protection performance: It cannot resist the penetration of hair dyes (such as ammonia, hydrogen peroxide, etc.) for more than 8 hours simultaneously. Summary of the Invention

[0007] The present invention provides a protective glove that can improve touch and is suitable for a variety of corrosive chemicals.

[0008] An anti-chemical, antibacterial, temperature-sensitive and breathable glove of the present invention comprises an anti-chemical layer and a tactile layer from outside to inside; wherein,

[0009] The material of the anti-chemical layer is fluorinated nitrile rubber with a thickness of 0.08 - 0.12 mm; the material of the tactile layer is a nano-level TPU film with a thickness of 20 - 50 nm and a surface roughness Ra ≤ 0.1 μm.

[0010] As a preferred solution, an air-permeable layer is arranged inside the tactile layer, and the air-permeable layer is a 3D microporous TPU grid;

[0011] As a preferred solution, the aperture of the 3D microporous TPU grid of the air-permeable layer is 50 - 100 μm, and the porosity ≥ 85%;

[0012] As a preferred solution, an antibacterial layer is arranged inside the air-permeable layer, and the antibacterial layer is a composite non-woven fabric;

[0013] As a preferred solution, the composite non-woven fabric of the antibacterial layer contains 0.5% silver ions and 8% tea tree essential oil microcapsules.

[0014] A preparation method of an anti-chemical, antibacterial, temperature-sensitive and breathable glove of the present invention specifically comprises the following steps:

[0015] Step 1, outer layer forming: Immerse a hand mold in fluorinated nitrile latex and dry it to form an anti-chemical layer;

[0016] Step 2, tactile layer spraying: Using the electrostatic spraying process, evenly spray the nano-TPU solution on the inner surface of the outer layer and dry it to form a continuous film.

[0017] As a preferred solution, it includes a breathable layer composite step: thermally press and bond the 3D microporous TPU mesh to the tactile layer.

[0018] As a preferred solution, it includes an antibacterial layer forming step: After activating the non-woven fabric by plasma, sequentially spray a composite solution of silver ions and tea tree essential oil, and form an antibacterial inner layer through roll pressing and bonding.

[0019] As a preferred solution, it includes a laser micropore engraving step: Use a CO2 laser to engrave micropores in the non-stressed area of the glove.

[0020] The chemical protection and antibacterial warm-sensing breathable glove of the present invention can achieve chemical protection for more than 12 hours through the settings of the chemical protection layer and the tactile layer, and the tactile conduction error is less than 0.8°C. At the same time, the breathable layer and the antibacterial layer can keep the humidity during the working state less than 15%, and achieve long-term antibacterial for 24 hours. Description of the Drawings

[0021] Figure 1 : It is a four-layer structure sectional view of the material of the present invention;

[0022] Figure 2 : It is a schematic diagram of the microscopic structure of the 3D microporous mesh of the breathable layer of the present invention;

[0023] Figure 3 : It is a SEM simulation diagram of the surface topography of the nano-TPU film of the tactile layer of the present invention.

[0024] In the figure: 1 is the chemical protection layer, 2 is the tactile layer, 3 is the breathable layer, and 4 is the antibacterial layer. Detailed Embodiments

[0025] A chemical protection and antibacterial warm-sensing breathable glove of the present invention includes a chemical protection layer and a tactile layer from outside to inside; among them, the material of the chemical protection layer is fluorinated butadiene rubber (F-NBR), and the thickness is 0.08 - 0.12 mm. This chemical protection layer passes the ASTM D6978-05 Class 3 certification and resists the penetration of 40% hydrogen peroxide for ≥12 hours. The material of the tactile layer is a nano-level TPU film, the thickness is 20 - 50 nm, and the surface roughness Ra ≤ 0.1 μm. The water temperature perception error of this tactile layer ≤ ±0.8°C, and the tactile sensitivity is 60% higher than that of traditional gloves.

[0026] An air-permeable layer is provided inside the tactile layer, and the air-permeable layer is a 3D microporous TPU mesh. The pore diameter of the 3D microporous TPU mesh is 50 - 100 μm, and the porosity is ≥ 85%. The air permeability of the air-permeable layer is ≥ 2500 g / ㎡·24h, and the humidity diffusion rate reaches 0.15 g / (m 2 ·s).

[0027] An antibacterial layer is provided inside the air-permeable layer, and the antibacterial layer is a composite non-woven fabric. The composite non-woven fabric contains 0.5% silver ions and 8% tea tree essential oil microcapsules. The antibacterial layer is tested according to GB / T 20944.3 - 2008, and the antibacterial rate > 99.5%.

[0028] The preparation method of an anti-chemical, antibacterial, temperature-sensitive and air-permeable glove of the present invention specifically includes the following steps:

[0029] Step 1, outer layer forming: Immerse a hand mold in fluorinated butadiene nitrile latex and dry it to form an anti-chemical layer. The solid content of the fluorinated butadiene nitrile latex is 40%, the immersion time is 10 seconds, and it is dried at 80°C for 5 minutes to finally form an anti-chemical layer with a thickness of 0.1 mm.

[0030] Step 2, tactile layer spraying: Adopt an electrostatic spraying process to evenly spray a nano-TPU solution on the inner surface of the outer layer and dry it to form a continuous film. The nano-TPU solution with a concentration of 8% is selected, evenly sprayed on the inner surface of the outer layer, and dried at 100°C for 3 minutes to finally form a continuous film.

[0031] Step 3, forming the air-permeable layer composite step: Thermally press and bond a 3D microporous TPU mesh to the tactile layer. A 3D microporous TPU mesh with a thickness of 0.15 mm is selected, thermally pressed and bonded to the tactile layer, and maintained at 180°C and a pressure of 5 MPa for 5 seconds to finally form an air-permeable layer with an interfacial bonding strength ≥ 3 N / cm.

[0032] Step 4, forming the antibacterial layer step: After the non-woven fabric is activated by plasma, a silver ion and tea tree essential oil composite solution is sprayed in sequence, and an antibacterial inner layer is formed by roll pressing and bonding. The roll pressing and bonding pressure is 0.5 MPa.

[0033] Step 5, laser micro-hole engraving step: Use a CO2 laser to engrave micro-holes in the non-stressed area of the glove. The wavelength of the CO2 laser is 10.6 μm, the power is 50 W, and micro-holes with a pore diameter of 80 μm and a density of 200 holes / cm are engraved in the non-stressed area of the glove 2 。

[0034] The anti-chemical, antibacterial, temperature-sensitive and air-permeable glove of the present invention can achieve chemical protection for more than 12 hours through the settings of the anti-chemical layer and the tactile layer, and the tactile conduction error is less than 0.8°C. At the same time, the air-permeable layer and the antibacterial layer can keep the humidity during working less than 15% and achieve long-term antibacterial for 24 hours. The present invention realizes an ultra-thin design, with a total thickness ≤ 0.35 mm and a bending stiffness ≤ 5 mN·m.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A chemical-resistant, antibacterial, temperature-sensitive and breathable glove, which includes a chemical-resistant layer and a tactile layer from outside to inside; wherein, The material of the chemical-resistant layer is fluorinated butadiene rubber, with a thickness of 0.08 - 0.12 mm; the material of the tactile layer is a nano-level TPU film, with a thickness of 20 - 50 nm, and the surface roughness Ra ≤ 0.1 μm.

2. The anti-chemical, antibacterial, temperature-sensitive and breathable glove according to claim 1, wherein An air-permeable layer is arranged inside the tactile layer, and the air-permeable layer is a 3D microporous TPU grid.

3. The anti-chemical, antibacterial, temperature-sensitive and breathable glove according to claim 2, characterized in that, The pore diameter of the 3D microporous TPU grid of the air-permeable layer is 50 - 100 μm, and the porosity ≥ 85%.

4. The anti-chemical, antibacterial, temperature-sensitive and breathable glove according to claim 2 or 3, characterized in that, An antibacterial layer is arranged inside the air-permeable layer, and the antibacterial layer is a composite non-woven fabric.

5. The anti-chemical, antibacterial, temperature-sensitive and breathable glove according to claim 4, characterized in that The composite non-woven fabric of the antibacterial layer contains 0.5% silver ions and 8% tea tree essential oil microcapsules.

6. A preparation method of a chemical-resistant, antibacterial, temperature-sensitive and breathable glove, which specifically includes the following steps: Step 1, outer layer forming: Immerse a hand mold in fluorinated butadiene latex and dry it to form a chemical-resistant layer; Step 2, tactile layer spraying: Adopt an electrostatic spraying process to evenly spray a nano-TPU solution on the inner surface of the outer layer and dry it to form a continuous film.

7. According to the preparation method of a chemical-resistant, antibacterial, temperature-sensitive and breathable glove described in claim 6, it further includes a step of forming an air-permeable layer composite: thermally press and bond a 3D microporous TPU grid to the tactile layer.

8. According to the preparation method of a chemical-resistant, antibacterial, temperature-sensitive and breathable glove described in claim 7, it further includes a step of forming an antibacterial layer: After activating the non-woven fabric by plasma, sequentially spray a silver ion and tea tree essential oil composite solution, and form an antibacterial inner layer by roll pressing and bonding.

9. According to the preparation method of a chemical-resistant, antibacterial, temperature-sensitive and breathable glove described in claim 8, it further includes a laser micro-hole engraving step: Use a CO2 laser to engrave micro-holes in the non-force-bearing area of the glove.

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