Ultrathin composite waterproof medical adhesive tape

Abstract

The utility model provides an ultrathin composite waterproof medical adhesive tape. The ultrathin composite waterproof medical adhesive tape comprises a base layer made of spunlace non-woven fabric, the waterproof layer is made of a micron-sized high-permeability polyurethane film and is compounded and fixed on the base layer, the thickness of the waterproof layer is 10-15 microns, and the water vapor permeability is 1500-3000g / m < 2 >. D; the surface of the waterproof layer is coated with the adhesive layer, and the adhesive layer is used for being pasted and fixed to the skin. The waterproof layer made of the micron-sized high-breathability polyurethane film is compounded on the spunlace non-woven fabric, and the spunlace non-woven fabric has enough waterproofness and breathability, so that the waterproofness and the breathability of the spunlace non-woven fabric can be improved on the basis of meeting the function of the medical adhesive tape, and the use requirements of waterproofness and breathability are met; meanwhile, when the medical adhesive tape is used, external pollution can be effectively prevented, the risk of infection can be reduced, wounds can be better healed, and due to the fact that the medical adhesive tape has good air permeability, skin sweat stains can be smoothly discharged, and the problem of skin allergy caused by super air permeability cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to an ultra-thin composite waterproof medical tape. Background Art

[0002] Medical tape is one of the most commonly used medical consumables. It is usually made of cotton cloth, non-woven fabric, pure wood pulp, PE film and other materials, and coated with self-adhesive adhesive. Its main purpose is to bond and fix dressings and medical equipment to intact skin.

[0003] Traditional medical tapes are usually not waterproof. In some medical application scenarios, it is necessary to prevent moisture or liquid from penetrating into the wound or treatment area through the muscle patch, but existing medical tapes often cannot provide sufficient waterproof performance. Although existing medical tapes using waterproof membranes have sufficient waterproof performance, their air permeability is often insufficient, which will cause the skin under the tape to be unable to breathe effectively, easily causing the skin to become moist, thereby increasing the risk of infection. Therefore, how to provide a medical tape with high waterproofness and good air permeability is an urgent problem to be solved. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an ultra-thin composite waterproof medical tape, which has the advantages of improved waterproofness and air permeability.

[0005] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0006] An ultra-thin composite waterproof medical tape, comprising:

[0007] A base layer made of a spunlace nonwoven fabric;

[0008] A waterproof layer made of micron-grade highly breathable polyurethane film and fixed to the base layer in a composite manner, wherein the thickness of the waterproof layer is 10-15 μm and the water vapor permeability is 1500-3000 g / m 2 d; and,

[0009] The adhesive layer coated on the surface of the waterproof layer is used for adhering and fixing to the skin.

[0010] The above technical scheme is realized by compounding a waterproof layer made of a micron-level highly breathable polyurethane film on the spunlace non-woven fabric. Since the waterproof layer has sufficient waterproofness and breathability, it can improve its waterproofness and breathability on the basis of meeting the functions of the medical tape, thereby meeting the use requirements of waterproofness and breathability; at the same time, when using the medical tape, it can effectively prevent external pollution, reduce the risk of infection, and enable the wound to heal better; and since the medical tape has good breathability, skin sweat can be discharged smoothly, and the problem of skin allergies caused by excessive breathability will not be caused.

[0011] In one embodiment of the present invention, a water absorbing layer is further provided on the side of the base layer opposite to the waterproof layer.

[0012] By implementing the above technical solution, the water absorbing layer can initially absorb water during use, thereby reducing moisture on the base layer and extending the service life of the medical tape.

[0013] In one embodiment of the present invention, a plurality of air holes are provided on the water absorbing layer, and the air holes are evenly arranged in an array.

[0014] By implementing the above technical solution, the air permeability of the water absorbing layer can be improved while satisfying the water absorption of the water absorbing layer.

[0015] In one embodiment of the present invention, water absorbing strips are further provided on both sides of the water absorbing layer, and the water absorption rate of the water absorbing strips is greater than the water absorption rate of the water absorbing layer.

[0016] By implementing the above technical solution, water vapor will first gather toward the water absorption strips and mostly concentrate near the water absorption strips, thereby further reducing moisture on the base layer.

[0017] In an embodiment of the present invention, a release layer is further provided on the adhesive layer.

[0018] By implementing the above technical solution, the adhesive layer can be protected by the release layer when the medical tape is not in use.

[0019] As described above, the ultra-thin composite waterproof medical tape of the utility model has the following beneficial effects:

[0020] The utility model provides an ultra-thin composite waterproof medical tape, comprising: a base layer made of spunlace non-woven fabric; a waterproof layer made of micron-grade highly breathable polyurethane film and compositely fixed to the base layer, wherein the thickness of the waterproof layer is 10-15 μm, and the water vapor permeability is 1500-3000 g / m 2·d; and an adhesive layer coated on the surface of the waterproof layer for attachment to the skin. By compounding a waterproof layer made of a micron-level highly breathable polyurethane film on the spunlace non-woven fabric, the waterproof layer has sufficient waterproofness and breathability. Therefore, on the basis of meeting the functions of the medical tape, the waterproofness and breathability can be improved, thereby meeting the use requirements of waterproof and breathable. At the same time, when using the medical tape, it can effectively prevent external pollution, reduce the risk of infection, and allow the wound to heal better. In addition, since the medical tape has good breathability, the sweat stains on the skin can be discharged smoothly, and the problem of skin allergies caused by excessive breathability will not be caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the first embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the second embodiment of the present utility model.

[0023] Figure 3 It shows a three-dimensional schematic diagram of the second embodiment of the present utility model.

[0024] Figure 4 It is a schematic diagram of the structure of the third embodiment of the present invention.

[0025] Figure 5 Shown is a three-dimensional schematic diagram of the fourth embodiment of the present utility model.

[0026] Figure 6 Shown is a three-dimensional schematic diagram of the fifth embodiment of the present utility model.

[0027] Component number description

[0028] 10. Base layer; 20. Waterproof layer; 30. Adhesive layer; 40. Water-absorbing layer; 41. Breathable holes; 42. Water-absorbing strips; 50. Release layer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] Embodiment 1

[0031] See also Figure 1The utility model provides an ultra-thin composite waterproof medical tape, comprising: a base layer 10 made of a spunlace non-woven fabric; a waterproof layer 20 made of a micron-level highly breathable polyurethane film and compositely fixed to the base layer 10, the waterproof layer 20 has a thickness of 10-15 μm and a water vapor permeability of 1500-3000 g / m 2 ·d; and, an adhesive layer 30 coated on the surface of the waterproof layer 20, for adhering and fixing to the skin.

[0032] The shapes and sizes of the base layer 10 and the waterproof layer 20 can be set according to actual needs. The waterproof layer 20 is realized by cold rolling technology, which is specifically as follows: first, the micron-level highly breathable polyurethane film is coated with glue, the oven temperature is set to 110°C and the gluing speed is 7m / min, and the glue is evenly coated on the micron-level highly breathable polyurethane film by transfer coating. The micron-level highly breathable polyurethane film is cold rolled by a pressure roller instead of using hot rolling technology to prevent high temperature from deforming the product. After cold rolling, the micron-level highly breathable polyurethane film is composited and fixed on the elastic cotton cloth, thereby completing the composite fixation of the base layer 10 and the waterproof layer 20.

[0033] By compounding a waterproof layer 20 made of a micron-level highly breathable polyurethane film on the spunlace non-woven fabric, since the waterproof layer 20 has sufficient waterproofness and breathability, it can improve its waterproofness and breathability on the basis of meeting the functions of the medical tape, thereby meeting the use requirements of waterproofness and breathability; at the same time, when using the medical tape, it can effectively prevent external pollution, reduce the risk of infection, and allow the wound to heal better; and since the medical tape has good breathability, skin sweat can be discharged smoothly, and the problem of skin allergies caused by excessive breathability will not occur.

[0034] In actual application, several groups of micron-level high-breathable polyurethane films were randomly selected for testing. After testing, their water vapor transmission rates are shown in the following table:

[0035]

[0036] Embodiment 2

[0037] The difference between this embodiment and the second embodiment is that: in this embodiment, Figure 2 and Figure 3 As shown, a water-absorbing layer 40 is also provided on the side of the base layer 10 opposite to the waterproof layer 20. The water-absorbing layer 40 and the base layer 10 can also be fixed together by cold rolling. The water-absorbing layer 40 can be made of a water-absorbing material, such as absorbent cotton, etc. The water-absorbing layer 40 can initially absorb water during use, reduce the moisture of the base layer 10, and extend the service life of the medical tape. At the same time, a plurality of air holes 41 are provided on the water-absorbing layer 40, and the air holes 41 are evenly arranged in an array form, which can improve the air permeability of the water-absorbing layer 40 while satisfying the water absorption of the water-absorbing layer 40.

[0038] Embodiment 3

[0039] The difference between this embodiment and the second embodiment is that: in this embodiment, Figure 4 As shown, a release layer 50 is adhered to the adhesive layer 30 , and the release layer 50 can be made of release paper. The release layer 50 can protect the adhesive layer 30 when the sports muscle tape is not in use.

[0040] Embodiment 4

[0041] The difference between this embodiment and the second embodiment is that: in this embodiment, Figure 5 As shown, water-absorbing strips 42 are further provided on both sides of the water-absorbing layer 40. The water absorption rate of the water-absorbing strips 42 is greater than that of the water-absorbing layer 40. The water-absorbing strips 42 and the water-absorbing layer 40 can be fixed in an integrally formed manner. If the medical tape is a roll material, the water-absorbing strips 42 are provided on both sides of the length direction thereof. When in use, water vapor will preferentially converge to the water-absorbing strips 42, and most of it will be concentrated near the water-absorbing strips 42, thereby further reducing the moisture of the base layer 10.

[0042] Embodiment 5

[0043] The difference between this embodiment and the third embodiment is that: in this embodiment, Figure 6 As shown, water-absorbing strips 42 are further provided on both sides of the water-absorbing layer 40. The water absorption rate of the water-absorbing strips 42 is greater than that of the water-absorbing layer 40. The water-absorbing strips 42 and the water-absorbing layer 40 can be fixed in an integrally formed manner. If the medical tape is a roll material, the water-absorbing strips 42 are provided on both sides of the length direction thereof. When in use, water vapor will preferentially converge to the water-absorbing strips 42, and most of it will be concentrated near the water-absorbing strips 42, thereby further reducing the moisture of the base layer 10.

[0044] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. An ultra-thin composite waterproof medical tape, characterized in that: include: A base layer made of a spunlace nonwoven fabric; A waterproof layer made of micron-grade highly breathable polyurethane film and fixed to the base layer, wherein the thickness of the waterproof layer is 10-15 μm and the water vapor permeability is 1500-3000 g / m 2 d; and, The adhesive layer coated on the surface of the waterproof layer is used for adhering and fixing to the skin.

2. The ultra-thin composite waterproof medical tape according to claim 1, characterized in that: A water absorbing layer is also arranged on the side of the base layer opposite to the waterproof layer.

3. The ultra-thin composite waterproof medical tape according to claim 2, characterized in that: The water absorbing layer is provided with a plurality of air holes, and the air holes are evenly arranged in an array.

4. The ultra-thin composite waterproof medical tape according to claim 2 or 3, characterized in that: Water absorbing strips are also arranged on both sides of the water absorbing layer, and the water absorption rate of the water absorbing strips is greater than the water absorption rate of the water absorbing layer.

5. The ultra-thin composite waterproof medical tape according to claim 1, characterized in that: A release layer is also provided on the adhesive layer.

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