TPU (thermoplastic polyurethane) / textile composite material for ultra-light high-wear-resistance luggage and preparation process of TPU / textile composite material

By using a multi-point hot-pressing process with 20D ultra-fine denier high-strength nylon filaments, low-density TPU film, and environmentally friendly adhesives, an ultra-lightweight, highly wear-resistant, soft, and interface-strong TPU/textile composite material is prepared, solving the problems of insufficient comprehensive performance and environmental protection in existing technologies. It is suitable for high-end bags and outdoor products.

CN122275417APending Publication Date: 2026-06-26GUANGZHOU AOKING LEATHER
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Patent Information

Application Number
CN202610333258.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-18
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing TPU/textile composite materials have shortcomings in terms of lightweighting, abrasion resistance, softness, and interfacial bonding, making it difficult to simultaneously meet the comprehensive performance requirements of high-end bags. Furthermore, traditional processes pose environmental problems.

Method used

Using 20D ultrafine denier high-strength nylon filaments as the base fabric, low-density TPU film, and low-solids water-based polyurethane environmentally friendly adhesive, combined with a multi-point hot pressing process, an ultra-lightweight, highly wear-resistant, soft, and interface-strong composite material was prepared.

Benefits of technology

It achieves a synergistic balance of ultra-lightweight materials, improved wear resistance, softness, and interface integration, meeting green production requirements and is suitable for high-end bags and outdoor products.

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Abstract

The invention discloses a preparation method of a TPU / textile composite material for ultralight high-wear-resistance bags and suitcases. The preparation method comprises the following steps: weaving mesh base cloth by a warp knitting machine; activating and pretreating the surface of the TPU film; coating an adhesive on the activated surface of the TPU film obtained in the previous step, and drying; the mesh base cloth and the TPU film are subjected to multi-point hot pressing, and a TPU / textile composite material is obtained; and carrying out after-finishing and shaping on the TPU / textile composite material obtained in the previous step. The preparation method has the advantages that the prepared composite material has multiple advantages of ultra-light weight, high wear resistance, softness, firm interface, breathability, environment friendliness and the like, can be widely applied to fabric preparation of various luggage products such as high-end draw-bar boxes, backpacks, outdoor luggage and briefcases, and can also be expanded to be applied to the fields of outdoor articles, protective articles and the like; the method has important industrial application value and market prospect.
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