High-elasticity composite structure hot melt adhesive film and application thereof

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By combining the high-elastic aliphatic TPU hot melt adhesive with spandex mesh, a composite structure hot melt adhesive film is formed, which solves the problem of insufficient performance of the existing hot melt adhesive film under the requirements of high elasticity, and achieves better tensile elasticity, adhesion and ultraviolet resistance, ensuring the comfort and appearance of seamless clothing.

CN119709032APending Publication Date: 2025-03-28GUANGDONG YETOM NEW MATERIALS CO LTD

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Patent Information

Application Number: CN202411885798.2
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-12-20
Publication Date: 2025-03-28

Application Information

Patent Timeline

20 Dec 2024

Application

CN202411885798.2

28 Mar 2025

Publication

CN119709032A

IPC: C09J7/21; C09J7/25; C09J175/04; C09J11/08; C09J7/35; A41H43/04

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Application Domain

Polyureas/polyurethane adhesives Macromolecular adhesive additives

Technology Topics

Polymer science Ultraviolet

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AI Technical Summary

Technical Problem

The hot melt adhesive film used for existing seamless clothing is poor in sportswear and underwear with high elasticity requirements. The main problems are small adhesive force, poor tensile strength elasticity, large tensile deformation/wave formation, etc.

Method used

A high-elastic composite structure hot melt adhesive film is used to form a three-layer structure hot melt adhesive film by combining a high-elastic aliphatic TPU hot melt adhesive with a high-elastic spandex mesh, including a spandex mesh and two layers of aliphatic TPU hot melt adhesive layer.

Benefits of technology

It improves the stretch elasticity and bonding of seamless bonding, enhances the UV resistance, makes the seamless bonding appearance smoother and extends the service life of the clothing.

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Abstract

The invention provides a high-elasticity composite structure hot melt adhesive film, and belongs to the technical field of hot melt adhesives. The fabric comprises a spandex net, the first aliphatic TPU hot melt adhesive layer is compounded on the spandex net; and the second aliphatic TPU hot melt adhesive layer is compounded below the spandex net. According to the invention, the aliphatic TPU hot melt adhesive with high elasticity and the spandex net with high elasticity are compounded for use, so that good adhesion and elasticity can be provided, the ultraviolet resistance is greatly improved, and the appearance of seamless adhesion is smooth.

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