Waterproof wear-resistant high-strength kraft paper

By setting a multi-layer structure and embedding a fiber mesh structure on the surface of kraft paper substrate, the problems of poor waterproof effect and insufficient tensile strength of kraft paper are solved, achieving high strength, waterproof, wear resistance and flame retardancy.

CN224227559UActive Publication Date: 2026-05-12GUANGDONG CHAOLUN NEW MATERIALS CO LTD
1 Cites 0 Cited by

Patent Information

Application Number
CN202520012601.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-05-12
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

Existing kraft paper has poor waterproof performance, is easily corroded, lacks tensile strength, and its abrasion resistance needs to be improved, resulting in reduced overall practicality.

Method used

A waterproof adhesive layer, a wear-resistant layer, a flame-retardant layer, and a protective layer are provided on both surfaces of a kraft paper substrate. A fibrous network structure of interwoven polytetrafluoroethylene fibers and carbon nanofibers is embedded inside the waterproof adhesive layer. The substrate is impregnated with thermosetting phenolic resin to enhance its structural strength.

Benefits of technology

It improves the waterproof, wear-resistant and flame-retardant properties of kraft paper, enhances its structural strength and tensile strength, extends the water molecule penetration path, and improves its overall performance.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses waterproof wear-resistant high-strength kraft paper which comprises a kraft paper base material, and a first waterproof adhesive layer, a first wear-resistant layer, a first flame-retardant layer and a first protective layer which are sequentially connected from inside to outside are respectively arranged on a first surface of the kraft paper base material; and a second waterproof adhesive layer, a second wear-resistant layer, a second flame-retardant layer and a second protective layer which are sequentially connected from inside to outside are respectively arranged on the second surface of the kraft paper base material. The waterproof, wear-resistant and flame-retardant composite material is simple in structure and reasonable in design, and has better waterproof, wear-resistant and flame-retardant effects, and the kraft paper base material is the kraft paper soaked with thermosetting phenolic resin, so that the structural strength of a product is greatly improved, and the tensile capacity is improved; in addition, the fiber net-shaped structures formed by longitudinally and transversely interweaving the polytetrafluoroethylene fibers and the carbon nanofibers are embedded in the two waterproof adhesive layers, so that the mechanical performance of the product can be enhanced, the tensile capacity can be improved, the water molecule permeation path can be prolonged, and the waterproof performance is further enhanced.
Need to check novelty before this filing date? Find Prior Art