High-strength bidirectional tearable adhesive tape
By setting a central tear line and tear-open end on the tape, the problem of high-strength medical tape being difficult to tear is solved, achieving the effects of bidirectional tearing and improved adhesion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING HI-TECH TAPE PROD CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-29
AI Technical Summary
Existing high-strength medical tape requires scissors to tear, which is cumbersome and cannot be torn along its length, affecting ease of use.
A high-strength bidirectional tearable tape was designed, including a central tear line and tear ports, allowing tearing in both length and width directions, combined with vents and side edge strips to improve fit and prevent curling.
It achieves convenient two-way tearing of the tape, enhances its usability and adhesion, and avoids the cumbersome operation of scissors and the phenomenon of curling.
Smart Images
Figure CN224299140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adhesive tape technology, and more specifically, to a high-strength bidirectional tearable adhesive tape. Background Technology
[0002] Medical tape plays a vital role in the medical field, especially in fixing medical equipment, wound dressing, and catheter fixation. There are many types of medical tearable tape on the market. Most of them have the advantages of high strength, are not easy to tear, and have a good adhesion to human skin.
[0003] However, high-strength medical tapes on the market generally cannot be torn directly and require the use of scissors, which is cumbersome. Furthermore, some medical tapes, while tearable along their width, cannot be torn along their length to maintain a forked shape, making them unusable when bonding or fixing catheters and other components, thus affecting effectiveness and ease of use. Therefore, we propose a high-strength bidirectional tearable tape. Utility Model Content
[0004] The purpose of this invention is to provide a high-strength bidirectional tearable tape to solve the defects mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-strength bidirectional tearable tape includes an inner support cylinder, an outer take-up tape wound around the outside of the inner support cylinder, the outer take-up tape being composed of a central base tape, an outer release film disposed on the outer surface of the central base tape, and an artificial silk backing layer disposed on the inner surface of the central base tape, a breathable layer disposed on the inner surface of the artificial silk backing layer, a low-sensitivity pressure-sensitive adhesive layer disposed on the inner surface of the breathable layer, a central tear line disposed along the length direction of the outer take-up tape, and multiple equally spaced tear ports disposed on both sides of the outer take-up tape.
[0007] Preferably, the left and right sides of the outer winding tape are symmetrical along the central tear line, and the cross-section of the tear port is triangular.
[0008] Preferably, the surface of the outer winding tape is provided with a plurality of ventilation holes arranged in a matrix, and the diameter of the ventilation holes is less than 1.3 mm.
[0009] Preferably, the distance between two adjacent ventilation holes is less than 1.2 cm, and the thickness of the outer roll tape is between 0.3 mm and 0.8 mm.
[0010] Preferably, both sides of the outer take-up tape are integrally formed with side edge strips, and the side edge strips include an outer deburring cover layer disposed on the upper layer and a thickened pressure-sensitive adhesive layer disposed on the bottom surface of the outer deburring cover layer.
[0011] Preferably, the outer deburring cover layer is inclined downward at 15° to 60°, and the thickened pressure-sensitive adhesive layer and the bottom surface of the low-sensitivity pressure-sensitive adhesive layer are located on the same plane.
[0012] Preferably, the central base strip, the outer release film, the artificial silk backing layer, and the breathable layer are integrally formed, and the width of the side edge strip is less than 0.5 cm.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model, through the setting of the tear-open port, allows the tape to be torn along the width direction of the outer winding tape, and through the setting of the center tear line, it can be torn along the length direction of the outer winding tape, so that the tape can remain in a forked shape and achieve a bidirectional tearable effect.
[0015] 2. The side edge strip of this utility model, because the thickness of the edge part of the side edge strip is less than the thickness of the outer roll adhesive tape, can prevent curling or lifting of the edges during use after the thickened pressure-sensitive adhesive layer is adhered to the skin. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a cross-sectional view of the outer take-up tape and the side edge tape of this utility model;
[0019] The meanings of the labels in the diagram are as follows: 1. Inner support cylinder; 10. Outer winding tape; 101. Central base tape; 102. Outer release film; 103. Artificial silk backing layer; 104. Breathable layer; 105. Low-sensitivity pressure-sensitive adhesive layer; 11. Central tear line; 12. Tear opening; 13. Side edge tape; 131. Thickened pressure-sensitive adhesive layer; 132. Outer deburring cover layer; 14. Ventilation hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-3 This utility model provides a technical solution: a high-strength bidirectional tearable tape, including an inner support cylinder 1, an outer take-up tape 10 wrapped around the outside of the inner support cylinder 1, the outer take-up tape 10 being composed of a central base tape 101, an outer release film 102 disposed on the outer surface of the central base tape 101, and an artificial silk backing layer 103 disposed on the inner surface of the central base tape 101, a breathable layer 104 disposed on the inner surface of the artificial silk backing layer 103, the breathable layer 104 being made of breathable non-woven fabric, and a low-sensitivity pressure-sensitive adhesive layer 105 disposed on the inner surface of the breathable layer 104, the low-sensitivity pressure-sensitive adhesive layer 105 being used to adhere to the skin for fixation.
[0022] Specifically, the outer take-up tape 10 is provided with a central tear line 11 along the length of the outer take-up tape 10, and multiple equally spaced tear ports 12 are provided on both sides of the outer take-up tape 10. The left and right sides of the outer take-up tape 10 are symmetrical along the central tear line 11, and the cross-section of the tear port 12 is triangular, so that the outer take-up tape 10 can be torn and cut along the transverse and longitudinal directions.
[0023] In this embodiment, a plurality of ventilation holes 14 arranged in a matrix are provided on the surface of the outer winding tape 10. The diameter of the ventilation holes 14 is less than 1.3 mm, and the distance between two adjacent ventilation holes 14 is less than 1.2 cm. The ventilation holes 14 are used for ventilation operation to improve the ventilation effect.
[0024] Specifically, the thickness of the outer take-up tape 10 is between 0.3mm and 0.8mm, making the thickness of the outer take-up tape 10 moderate.
[0025] Furthermore, both sides of the outer roll-up tape 10 are integrally formed with side edge strips 13. The side edge strips 13 include an outer deburred cover layer 132 disposed on the upper layer and a thickened pressure-sensitive adhesive layer 131 disposed on the bottom surface of the outer deburred cover layer 132. The outer deburred cover layer 132 is deburred to make its surface burr-free. The outer deburred cover layer 132 is inclined downward at 15°~60°. The bottom surface of the thickened pressure-sensitive adhesive layer 131 is on the same plane as the bottom surface of the low-sensitivity pressure-sensitive adhesive layer 105. The width of the side edge strip 13 is less than 0.5cm, and the top surface of the side edge strip 13 is inclined downward. At the same time, the burr-free surface of the outer deburred cover layer 132 can also avoid being pulled by the outside. The thickened pressure-sensitive adhesive layer 131 can better adhere to and stick to the skin, preventing curling or lifting during use.
[0026] In addition, the central baseband 101, outer release film 102, artificial silk backing layer 103 and breathable layer 104 are integrally molded structures, ensuring that the overall structure is more robust and stable.
[0027] When using this high-strength bidirectional tearable tape, the outer roll tape 10 is unrolled to the corresponding length, and then torn along the corresponding tear port 12 as needed to obtain the corresponding length of the outer roll tape 10. Alternatively, the outer roll tape 10 can be torn into a forked shape along the central tear line 11 for use.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-strength bidirectional tearable tape, comprising an inner support cylinder (1), characterized in that: The outer support cylinder (1) is wrapped with an outer take-up tape (10). The outer take-up tape (10) consists of a central base tape (101), an outer release film (102) disposed on the outer surface of the central base tape (101), and an artificial silk backing layer (103) disposed on the inner surface of the central base tape (101). A breathable layer (104) is disposed on the inner surface of the artificial silk backing layer (103). A low-sensitivity pressure-sensitive adhesive layer (105) is disposed on the inner surface of the breathable layer (104). A central tear line (11) is disposed on the outer take-up tape (10) along the length direction of the outer take-up tape (10). Multiple equally spaced tear ports (12) are disposed on both sides of the outer take-up tape (10).
2. The high-strength bidirectional tearable tape according to claim 1, characterized in that: The left and right sides of the outer take-up tape (10) are symmetrical along the central tear line (11), and the cross-section of the tear port (12) is triangular.
3. The high-strength bidirectional tearable tape according to claim 1, characterized in that: The surface of the outer take-up tape (10) is provided with a plurality of ventilation holes (14) arranged in a matrix, and the diameter of the ventilation holes (14) is less than 1.3 mm.
4. The high-strength bidirectional tearable tape according to claim 3, characterized in that: The distance between two adjacent ventilation holes (14) is less than 1.2 cm, and the thickness of the outer roll tape (10) is between 0.3 mm and 0.8 mm.
5. The high-strength bidirectional tearable tape according to claim 1, characterized in that: The outer take-up tape (10) has side edge strips (13) integrally formed on both sides. The side edge strips (13) include an outer deburring cover layer (132) on the upper layer and a thickened pressure-sensitive adhesive layer (131) on the bottom surface of the outer deburring cover layer (132).
6. The high-strength bidirectional tearable tape according to claim 5, characterized in that: The outer deburring cover layer (132) is inclined downward at 15°~60°, and the bottom surface of the thickened pressure-sensitive adhesive layer (131) and the low-sensitivity pressure-sensitive adhesive layer (105) are on the same plane.
7. The high-strength bidirectional tearable tape according to claim 1, characterized in that: The central base strip (101), the outer release film (102), the artificial silk backing layer (103), and the breathable layer (104) are integrally formed structures, and the width of the side edge strip (13) is less than 0.5cm.