Breathable bidirectional easy-to-tear medical PE adhesive tape and preparation method thereof

Abstract

The invention discloses an air-permeable bidirectional easy-to-tear medical PE adhesive tape and a preparation method thereof, and relates to the technical field of medical PE adhesive tape, the air-permeable bidirectional easy-to-tear medical PE adhesive tape sequentially comprises a second gluing layer, a mixed substrate layer, a first gluing layer, air holes, a silica gel desiccant and release paper from bottom to top, the mixed substrate layer is formed by mixing PE and calcium carbonate powder, and the mixed substrate layer is formed by mixing the mixed substrate layer, the first gluing layer, the air holes, the silica gel desiccant and the release paper. The first gluing layer is arranged at the top of the mixed substrate layer, the second gluing layer is arranged at the bottom of the mixed substrate layer, the air holes penetrate through the second gluing layer, the mixed substrate layer and the first gluing layer, the silica gel desiccant is arranged in the air holes, and the release paper is arranged at the top of the first gluing layer. According to the invention, the PE and the calcium carbonate are mixed to prepare the mixed substrate layer I, so that the force required for tearing is effectively reduced, the PE adhesive tape is easy to tear, the situation that the traditional PE adhesive tape is difficult to tear manually is avoided, and the convenience of using the adhesive tape by people is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical PE tapes, in particular to a breathable bidirectional easy-tear medical PE tape and a preparation method thereof. Background Art

[0002] Medical PE two-way tape is a tape with adhesive surfaces on both sides. It is widely used in medical applications. In scenarios such as sticking a wig on the scalp, the poor air permeability of the tape often causes sweating on the scalp, which causes the tape to become less sticky. The sweat on the skin can easily breed bacteria over a long period of time. At the same time, PE tape is not easy to tear because of its PE base, so people need to use scissors to cut it, which is inconvenient to use.

[0003] The defects of existing PE tape are: 1. Prior art KR1020170101245A discloses an ultra-high molecular weight polyethylene tape. The polyethylene tape of this technology is not easy to be torn. People need to use tools such as scissors to cut the tape when using it, which makes the use of the tape inconvenient. Therefore, a breathable, bidirectional, easy-to-tear medical PE tape that is easy to tear is needed to solve this problem.

[0004] 2. Prior art KR1020140134798A discloses a polyethylene substrate surface protection tape with a silicone film. The tape does not have a breathable structure and has poor air permeability. When the tape is attached to the skin, it is easy to slow down the heat dissipation of the skin and produce sweat. Therefore, a breathable two-way easy-to-tear medical PE tape with good air permeability is needed to solve this problem.

[0005] 3. Prior art US08075979B2 discloses a non-fiber high modulus ultra-high molecular weight polyethylene tape for ballistic applications. The tape does not have a structure for absorbing sweat. When the tape has a breathable structure, sweat may still be present when it is attached to the skin when the weather temperature is high. Therefore, a breathable, two-way, easy-to-tear medical PE tape with the ability to absorb sweat is needed to solve this problem.

[0006] 4. Prior art CN114574124B discloses a PE foam tape, which has no antibacterial ability. When the tape is attached to the skin, a large amount of sweat is produced on the skin in hot weather. If the sweat cannot be effectively removed, bacteria are easily grown on the sweat, which is harmful to the skin. Therefore, a breathable, two-way, easy-to-tear medical PE tape with antibacterial ability is needed to solve this problem. Summary of the invention

[0007] One purpose of the present application is to provide a breathable two-way easy-tear medical PE tape and a preparation method thereof, which can solve the technical problems raised in the prior art.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a breathable two-way easy-to-tear medical PE tape, wherein the breathable two-way easy-to-tear medical PE tape comprises, from bottom to top, a second adhesive layer, a mixed base layer, a first adhesive layer, an air hole, a silica gel desiccant and a release paper, wherein the mixed base layer is formed by mixing PE and calcium carbonate powder, the first adhesive layer is arranged on the top of the mixed base layer, the second adhesive layer is arranged on the bottom of the mixed base layer, the air hole is a hole that passes through the second adhesive layer, the mixed base layer and the first adhesive layer, the silica gel desiccant is arranged inside the air hole, and the release paper is arranged on the top of the first adhesive layer.

[0009] Preferably, the mixed base layer comprises 40-60 parts by weight of PE and 40-60 parts by weight of calcium carbonate powder.

[0010] Preferably, the thickness of the mixed substrate layer is 2-3 mm.

[0011] Preferably, the materials of the first and second adhesive layers are both acrylic glue.

[0012] Preferably, the air holes are evenly spaced on the mixed substrate layer, the spacing between the centers of the air holes is 7-10 mm, and the aperture of the air holes is 1-3 mm.

[0013] Preferably, the average particle size of the silica gel desiccant is 1-3 mm.

[0014] Preferably, antibacterial powder is adhered to a partial area of ​​the surface of the silica gel desiccant.

[0015] Preferably, the silica gel desiccant is adhered to the inner wall of the air vent through oil.

[0016] Preferably, the preparation method of the breathable bidirectional easy-tear medical PE tape is as follows: S1, mixing PE particles with calcium carbonate powder, and then putting them into a film blowing machine to melt and blow them into a film, and then cutting the film into tape-like strips to form a mixed base layer, and then using a punching machine to punch holes in the strip film to form air holes; S2, applying a layer of acrylic glue on the mixed base layer to form a first adhesive layer, and then attaching a release paper on the first adhesive layer; S3, then turning over the mixed base layer so that its bottom faces upward, and then sprinkling silica gel desiccant on the mixed base layer, and scraping the silica gel desiccant into the air vents, and then scraping off excess silica gel desiccant; S4. Use a glue dispenser to dispense acrylic glue into the vent holes, and then use a powder injector to spray antibacterial powder on the mixed base layer. After the antibacterial powder adheres to the acrylic glue in the vent holes, use a vacuum cleaner to suck away excess antibacterial powder on the mixed base layer.

[0017] Preferably, the S4 further includes the following steps: S41, then apply a layer of acrylic glue on the upward surface of the mixed base layer to form a second glue coating layer.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention mixes PE and calcium carbonate to form a mixed base layer, which effectively reduces the force required for tearing, so that the PE tape is easy to tear, avoids the situation that the traditional PE tape is difficult to tear manually, and improves the convenience of people using the tape.

[0019] 2. The present invention is provided with ventilation holes to improve the breathability of the product, thereby reducing heat accumulation on the skin through ventilation and heat dissipation when the tape is attached to the skin, and reducing the possibility of sweating when the traditional tape is attached to the skin.

[0020] 3. The present invention is provided with a silica gel desiccant, which can absorb sweat when there is sweat on the skin, thereby reducing the growth of bacteria on the skin and avoiding the situation where the traditional PE tape cannot absorb sweat and cause bacterial growth.

[0021] 4. The present invention provides antibacterial powder in the vent holes, so that when there is a large amount of sweat on the skin that cannot be adsorbed, the silver ions in the antibacterial powder can penetrate into the sweat, thereby playing an antibacterial role and preventing bacterial growth. This avoids the situation in which traditional tapes cause bacterial growth due to the long-term presence of sweat that cannot be dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the air vent structure of the present invention; Figure 3 It is a flow chart of the preparation method of the present invention.

[0023] In the figure: 1. mixed base layer; 2. first adhesive coating layer; 3. air vents; 4. silica gel desiccant; 5. release paper; 6. second adhesive coating layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 , Figure 2 and Figure 3 A breathable two-way easy-to-tear medical PE tape, the breathable two-way easy-to-tear medical PE tape comprises the following steps: the breathable two-way easy-to-tear medical PE tape comprises, from bottom to top, a glue layer 2 6, a mixed base layer 1, a glue layer 1 2, air holes 3, a silica gel desiccant 4 and a release paper 5, the mixed base layer 1 is formed by mixing PE and calcium carbonate powder, the glue layer 1 2 is arranged on the top of the mixed base layer 1, the glue layer 2 6 is arranged on the bottom of the mixed base layer 1, the air holes 3 are holes that penetrate the glue layer 2 6, the mixed base layer 1 and the glue layer 1 2, the silica gel desiccant 4 is arranged inside the air holes 3, and the release paper 5 is arranged on the top of the glue layer 1 2.

[0028] The mixed base layer 1 comprises 40-60 parts of PE and 40-60 parts of calcium carbonate powder by weight.

[0029] The thickness of the mixed substrate layer 1 is 2-3 mm.

[0030] The materials of the adhesive layer 1 2 and the adhesive layer 2 6 are both acrylic glue.

[0031] The air holes 3 are evenly spaced on the mixed substrate layer 1 , the spacing between the centers of the air holes 3 is 7-10 mm, and the aperture of the air holes 3 is 1-3 mm.

[0032] The average particle size of the silica gel desiccant 4 is 1-3 mm.

[0033] Antibacterial powder is adhered to a part of the surface of the silica gel desiccant 4, and the antibacterial powder is silver ion antibacterial powder.

[0034] The silica gel desiccant 4 adheres to the inner wall of the air vent 3 through the oil.

[0035] The preparation method of the breathable two-way easy-tear medical PE tape is as follows: S1, mixing PE particles with calcium carbonate powder, and then putting them into a film blowing machine to melt and blow them into a film, and then cutting the film into tape-like strips to form a mixed base layer 1, and then using a punching machine to punch holes in the strip film to form air holes 3; S2, applying a layer of acrylic glue on the mixed base layer 1 to form a glue coating layer 2, and then attaching a release paper 5 on the glue coating layer 2; S3, then turn over the mixed base layer 1 so that its bottom faces upward, then sprinkle the silica gel desiccant 4 on the mixed base layer 1, scrape the silica gel desiccant 4 into the air vents 3, and then scrape off the excess silica gel desiccant 4; S4. Use a glue dispenser to dispense acrylic glue into the air hole 3. The required amount of acrylic glue is set to adhere the silica gel desiccant 4 to the inner wall of the air hole 3 without completely blocking the air hole 3. Then use a powder injector to spray antibacterial powder on the mixed base layer 1. After the acrylic glue in the air hole 3 adheres to the antibacterial powder, use a vacuum cleaner to suck away the excess antibacterial powder on the mixed base layer 1.

[0036] There are also the following steps in S4: S41, then apply a layer of acrylic glue on the upward surface of the mixed base layer 1 to form a second glue coating layer 6.

[0037] Embodiment 1: 1. Mix 50 parts of PE granules with 50 parts of calcium carbonate powder, and then put them into a film blowing machine to melt and blow them into a 3 mm thick film. Then cut the film into tape-like strips to form a mixed base layer 1. Then use a punching machine to punch holes 3 with a diameter of 3 mm and a center spacing of 8 mm on the strip film. 2. Apply a layer of acrylic glue on the mixed base layer 1 to form a glue coating layer 2, and then attach the release paper 5 to the glue coating layer 2; 3. Then, the mixed base layer 1 is turned over so that its bottom faces upward, and then the silica gel desiccant 4 is sprinkled on the mixed base layer 1, and the silica gel desiccant 4 is scraped into the air vents 3, and then the excess silica gel desiccant 4 is scraped off; Fourth, use a glue dispenser to dispense acrylic glue into the vent holes 3, and then use a powder injector to spray antibacterial powder on the mixed base layer 1. After the acrylic glue in the vent holes 3 is adhered with the antibacterial powder, use a vacuum cleaner to suck away the excess antibacterial powder on the mixed base layer 1; 5. Then, a layer of acrylic glue is applied on the upward surface of the mixed base layer 1 to form a second glue coating layer 6.

[0038] Embodiment 2: 1. Put 50 parts of PE granules into a film blowing machine, melt them and blow them into a 3 mm thick film. Then cut the film into tape-like strips to form a mixed base layer 1. Then use a punching machine to punch holes 3 with a diameter of 3 mm and a center spacing of 8 mm on the strip film. 2. Apply a layer of acrylic glue on the mixed base layer 1 to form a glue coating layer 2, and then attach the release paper 5 to the glue coating layer 2; 3. Then, the mixed base layer 1 is turned over so that its bottom faces upward, and then the silica gel desiccant 4 is sprinkled on the mixed base layer 1, and the silica gel desiccant 4 is scraped into the air vents 3, and then the excess silica gel desiccant 4 is scraped off; Fourth, use a glue dispenser to dispense acrylic glue into the vent holes 3, and then use a powder injector to spray antibacterial powder on the mixed base layer 1. After the acrylic glue in the vent holes 3 is adhered with the antibacterial powder, use a vacuum cleaner to suck away the excess antibacterial powder on the mixed base layer 1; 5. Then, a layer of acrylic glue is applied on the upward surface of the mixed base layer 1 to form a second glue coating layer 6.

[0039] Embodiment three: 1. Mix 50 parts of PE granules with 50 parts of calcium carbonate powder, and then put them into a film blowing machine to melt and blow them into a 3 mm thick film, and then cut the film into tape-like strips to form a mixed base layer 1; 2. Apply a layer of acrylic glue on the mixed base layer 1 to form a glue coating layer 2, and then attach the release paper 5 to the glue coating layer 2; 3. then turning over the mixed base layer 1 so that its bottom faces upward; Fourth, a layer of acrylic glue is then applied on the upward surface of the mixed base layer 1 to form a second glue coating layer 6.

[0040] Embodiment 4: 1. Mix 50 parts of PE granules with 50 parts of calcium carbonate powder, and then put them into a film blowing machine to melt and blow them into a 3 mm thick film. Then cut the film into tape-like strips to form a mixed base layer 1. Then use a punching machine to punch holes 3 with a diameter of 3 mm and a center spacing of 8 mm on the strip film. 2. Apply a layer of acrylic glue on the mixed base layer 1 to form a glue coating layer 2, and then attach the release paper 5 to the glue coating layer 2; 3. then turning over the mixed base layer 1 so that its bottom faces upward; Fourth, use a glue dispenser to dispense acrylic glue into the vent holes 3, and then use a powder injector to spray antibacterial powder on the mixed base layer 1. After the acrylic glue in the vent holes 3 is adhered with the antibacterial powder, use a vacuum cleaner to suck away the excess antibacterial powder on the mixed base layer 1; 5. Then, a layer of acrylic glue is applied on the upward surface of the mixed base layer 1 to form a second glue coating layer 6.

[0041] Embodiment five: 1. Mix 50 parts of PE granules with 50 parts of calcium carbonate powder, and then put them into a film blowing machine to melt and blow them into a 3 mm thick film. Then cut the film into tape-like strips to form a mixed base layer 1. Then use a punching machine to punch holes 3 with a diameter of 3 mm and a center spacing of 8 mm on the strip film. 2. Apply a layer of acrylic glue on the mixed base layer 1 to form a glue coating layer 2, and then attach the release paper 5 to the glue coating layer 2; 3. Then, the mixed base layer 1 is turned over so that its bottom faces upward, and then the silica gel desiccant 4 is sprinkled on the mixed base layer 1, and the silica gel desiccant 4 is scraped into the air vents 3, and then the excess silica gel desiccant 4 is scraped off; Fourth, use a glue dispenser to dispense acrylic glue into the vent hole 3; 5. Then, a layer of acrylic glue is applied on the upward surface of the mixed base layer 1 to form a second glue coating layer 6.

[0042] Performance Test: 1. Waterproof test: Spread the product of each embodiment flat on a substrate, then tear off the release paper 5, and then drip water on the product. After 1 minute, observe whether there is water under the product; 2. Force required for tearing: The force required for tearing the product of each embodiment was measured using a tensile force meter.

[0043] Test data of each embodiment under the same test conditions

[0044] It can be known from the experimental data that in the present invention, mixing PE and calcium carbonate powder to form a mixed base layer 1 can effectively reduce the force required for tearing, and the air permeability of the product can be improved by setting the air holes 3. By setting the silica gel desiccant 4, water can be adsorbed and dried when there is a small amount of water at the bottom of the product, and antibacterial powder can be set in the air holes 3 to penetrate into the water when there is water at the bottom of the product, thereby playing an antibacterial role.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A breathable two-way easy-tear medical PE tape, characterized by: The breathable bidirectional easy-tear medical PE tape comprises, from bottom to top, a second adhesive layer (6), a mixed base layer (1), a first adhesive layer (2), an air vent (3), a silica gel desiccant (4) and a release paper (5); the mixed base layer (1) is formed by mixing PE and calcium carbonate powder; the first adhesive layer (2) is arranged on the top of the mixed base layer (1); the second adhesive layer (6) is arranged on the bottom of the mixed base layer (1); the air vent (3) is a hole that passes through the second adhesive layer (6), the mixed base layer (1) and the first adhesive layer (2); the silica gel desiccant (4) is arranged inside the air vent (3); and the release paper (5) is arranged on the top of the first adhesive layer (2).

2. A breathable bidirectional easy-tear medical PE tape according to claim 1, characterized in that: The mixed base layer (1) comprises 40-60 parts by weight of PE and 40-60 parts by weight of calcium carbonate powder.

3. The breathable bidirectional easy-tear medical PE tape according to claim 1, characterized in that: The thickness of the mixed base layer (1) is 2-3 mm.

4. The breathable bidirectional easy-tear medical PE tape according to claim 1, characterized in that: The materials of the first glue coating layer (2) and the second glue coating layer (6) are both acrylic glue.

5. The breathable bidirectional easy-tear medical PE tape according to claim 1, characterized in that: The ventilation holes (3) are evenly spaced on the mixed base layer (1), the spacing between the centers of the ventilation holes (3) is 7-10 mm, and the aperture of the ventilation holes (3) is 1-3 mm.

6. A breathable bidirectional easy-tear medical PE tape according to any one of claims 1 to 5, characterized in that: The average particle size of the silica gel desiccant (4) is 1-3 mm.

7. The breathable bidirectional easy-tear medical PE tape according to claim 1, characterized in that: Antibacterial powder is adhered to a partial area of ​​the surface of the silica gel desiccant (4).

8. The breathable bidirectional easy-tear medical PE tape according to claim 1, characterized in that: The silica gel desiccant (4) is adhered to the inner wall of the air vent (3) through oil.

9. A method for preparing a breathable bidirectional easy-tear medical PE tape according to any one of claims 1 to 8, characterized in that: The preparation method of the breathable bidirectional easy-tear medical PE tape is as follows: S1, mixing PE particles with calcium carbonate powder, and then putting them into a film blowing machine to melt and blow them into a film, and then cutting the film into tape-like strips to form a mixed base layer (1), and then using a punching machine to punch holes in the strip film to form air holes (3); S2, applying a layer of acrylic glue on the mixed base layer (1) to form a first adhesive layer (2), and then attaching a release paper (5) to the first adhesive layer (2); S3, then turning over the mixed base layer (1) so that its bottom faces upward, and then sprinkling the silica gel desiccant (4) on the mixed base layer (1), and scraping the silica gel desiccant (4) into the air vents (3), and then scraping off the excess silica gel desiccant (4); S4. Use a glue dispenser to dispense acrylic glue into the air holes (3), and then use a powder sprayer to spray antibacterial powder on the mixed base layer (1). After the antibacterial powder adheres to the acrylic glue in the air holes (3), use a vacuum cleaner to suck away excess antibacterial powder on the mixed base layer (1).

10. The method for preparing a breathable bidirectional easy-tear medical PE tape according to claim 9, characterized in that: The S4 also includes the following steps: S41, then apply a layer of acrylic glue on the upward surface of the mixed base layer (1) to form a second glue coating layer (6).

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