Medical adhesive tape base cloth with radial net structure

By orderly inlaid with prismatic ring-shaped polyester wire on the nonwoven fabric of medical tape substrate to form a wire mesh structure, the problem of insufficient flexibility, breathability and radial strength in scar finishing and wound closure is solved, and higher tear resistance and applicability are achieved.

CN222557193UActive Publication Date: 2025-03-04SHANGHAI RUNDONG NONWOVEN FABRIC CO LTD
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Patent Information

Application Number
CN202421128093.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-22
Publication Date
2025-03-04
Estimated Expiration
2034-05-22

AI Technical Summary

Technical Problem

The existing medical tape substrates are difficult to meet the requirements of softness, breathability and radial tension during scar finishing, small wound closure and skin repair.

Method used

The nonwoven fabric with a wire mesh structure is formed by inlaid with prismatic ring-shaped polyester wires on the nonwoven fabric to form a mutually connected structure, thereby improving the radial strength.

Benefits of technology

The softness and breathability of the tape base cloth are achieved, while significantly improving the radial tear resistance strength, meeting the performance required for wound closure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a medical adhesive tape base cloth with a radial net structure, prismatic ring-shaped polyester yarns are orderly inlaid on a non-woven net cloth in the radial direction, the prismatic ring-shaped polyester yarns which are orderly inlaid in the radial direction are mutually sleeved, the prismatic ring-shaped polyester yarns are formed by orderly inlaying a plurality of 15D-20D polyester yarns on the non-woven net cloth, and the 15D-20D polyester yarns are mutually sleeved on the non-woven net cloth. The thickness of the medical adhesive tape base cloth is 0.25-0.27 mm. The medical adhesive tape base cloth is 31-34 g / m < 2 >. The adhesive tape has the advantages that the adhesive tape is low in quality, thin and particularly soft, and after the radial prismatic ring-shaped polyester filament yarn is embedded, the radial strength is obviously improved, so that the adhesive tape has good tearing strength and is just required by a medical adhesive tape for wound closure.
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Description

Technical Field

[0001] The utility model relates to a medical adhesive tape base cloth, in particular to a non-woven fabric with a wire mesh structure. Background Art

[0002] There are many types of medical tape substrates. For scar management, small wound closure, and skin repair, a soft, breathable, and radially tensile tape substrate is required. Summary of the invention

[0003] In order to achieve the above-mentioned purpose, the utility model provides a medical tape base cloth with a radial mesh structure, wherein a non-woven mesh cloth is orderly inlaid with prismatic ring-shaped polyester yarns in the radial direction, and the radially orderly inlaid prismatic ring polyester yarns are mutually sleeved, and the prismatic ring polyester yarns are made of a plurality of 15D-20D polyester yarns orderly inlaid on the non-woven mesh cloth ... 2 , medical tape base fabric with thickness of 0.25-0.27mm.

[0004] The nonwoven mesh is made of polypropylene melt-spun yarn and hot-rolled 25g / m 2 , non-woven mesh with a thickness of 0.2-0.25mm.

[0005] The nonwoven mesh is made of 28g / m2 polyester fiber impregnated and bonded 2 , non-woven mesh with a thickness of 0.2-0.25mm.

[0006] The utility model has the advantages of low mass, very thinness, and special softness. After being inlaid with radial prismatic ring-shaped polyester filaments, the radial strength is significantly improved, so that the utility model has good tearing strength, which is exactly what is needed for wound closing medical tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a plan view of the utility model, and there are many prismatic circles c in the longitudinal direction of the figure.

[0008] Explanation of the numbers in the figure: a-the spacing between radial prismatic polyester loops; b-the length of the prismatic polyester loops; c-the prismatic polyester loops; d-the connection points between the radial prismatic polyester loops. DETAILED DESCRIPTION

[0009] Embodiment 1

[0010] Use polypropylene spunbond filaments, polypropylene melt spinning, and hot-rolled reinforced non-woven process to make non-woven mesh (this is a well-known conventional process), with a quantitative of 25g / m 2 , thickness 0.2-0.25mm, radial strength 40-50N / 5cm, lateral strength 25-30N / 5cm.

[0011] The above-mentioned polypropylene spunbond filament nonwoven mesh cloth enters the feeding mechanism and then enters the weaving mechanism. At the same time, 15D-20D polyester filaments are regularly arranged and enter the weaving mechanism. After a series of operations: needle insertion, looping, loop removal, and looping, finally, a prismatic coil c is formed on the nonwoven mesh cloth and connected with each other. After weaving, it is rolled into a roll and enters the impregnation bonding system. After drying, it is rolled into a roll to make a medical tape base cloth with a quantitative of 31-34g / m 2 , thickness 0.25-0.27mm, radial strength 115n / 5cm, lateral strength 17N / 5cm, radial elongation 16%, lateral elongation 90%, air permeability 2650-3050l / m 2 The spacing a of the prismatic coil c is 2 mm, and the length b of the prismatic coil c is 1.5 mm.

[0012] Embodiment 2

[0013] The nonwoven mesh is made of polyester fiber impregnated and bonded (this is a well-known conventional process), with a basis weight of 28g / m 2 , thickness 0.2-0.25mm, radial strength 50-60N / 5cm, lateral strength 8-10N / 5cm.

[0014] The nonwoven mesh made of the polyester fiber impregnation and bonding is fed into the feeding mechanism and then into the weaving mechanism. At the same time, 15D-20D polyester filaments are regularly arranged and fed into the weaving mechanism. After a series of operations: needle insertion, looping, loop removal, and looping, a prismatic coil c is finally formed on the nonwoven mesh and connected with each other. After weaving and rolling, it enters the impregnation and bonding system, is dried and rolled, and is made into a medical tape base fabric with a basis weight of 37-38g / m 2 Thickness 0.22-0.24mm, radial strength 123n / 5cm, lateral strength 7N / 5cm, radial elongation 13%, lateral elongation 30%, air permeability 2350-2450l / m 2 s; the spacing a of the prismatic coil c is 2 mm, and the length b of the prismatic coil c is 1.5 mm

[0015]

[0016] .

Claims

1. A medical tape base fabric with a radial wire mesh structure, characterized in that: In the radial direction of a nonwoven mesh, there are orderly inlaid prismatic ring-shaped polyester yarns, and the radially orderly inlaid prismatic ring polyester yarns are mutually sleeved. The prismatic ring polyester yarns are made of many 15D-20D polyester yarns orderly inlaid on the nonwoven mesh, and are made into 31-34g / m 2 , medical tape base fabric with thickness of 0.25-0.27mm.

2. A medical tape base fabric with a radial wire mesh structure according to claim 1, characterized in that: The nonwoven mesh is made of polypropylene melt-spun yarn and hot-rolled 25g / m 2 , non-woven mesh with a thickness of 0.2-0.25mm.

3. A medical tape base fabric with a radial wire mesh structure according to claim 1, characterized in that: The nonwoven mesh is made of 28g / m2 polyester fiber impregnated and bonded 2 , non-woven mesh with a thickness of 0.2-0.25mm.