A basalt core yarn fabric composite method

By setting a polyester nonwoven fabric transition support layer between the basalt spinneret fabric and the waterproof and breathable functional membrane, and using dot-matrix transfer sizing technology to form a three-layer composite structure, the problems of insufficient bonding and insufficient interface stability of basalt spinneret fabric in conventional composites are solved, achieving a balance between softness and functionality.

CN122210995APending Publication Date: 2026-06-16ANTA (CHINA) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-16
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Basalt yarn fabrics suffer from problems such as insufficient bonding in certain areas, stiffness of the composite fabric, poor surface smoothness, and insufficient interfacial stability when using conventional composite methods. In particular, its porous structure makes it easy for the film layer to be suspended and unevenly supported between the film layer and the substrate.

Method used

A polyester nonwoven fabric transition support layer is adopted, and reactive polyurethane hot melt adhesive is transferred between the transition support layer, the basalt core yarn fabric and the waterproof and breathable functional membrane through a dot transfer adhesive application method using a carving roller, forming a three-layer composite structure. The moisture content of the transition support layer is controlled to be ≤8%, and the structural stability is improved through cooling and curing.

Benefits of technology

It achieves uniform bonding between basalt core yarn fabric and functional membrane, improves the surface condition and interface stability after lamination, while maintaining the softness and functionality of the fabric, and solves the lamination problem of porous substrate.

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Abstract

This invention provides a method for composite basalt core yarn fabric. First, the basalt core yarn fabric with a porous structure undergoes a series of processes including flat-width degreasing and washing, loose drying, pre-shrinking, and setting. Then, a polyester nonwoven fabric transition support layer is placed between the fabric and a waterproof and breathable functional membrane, with its moisture content controlled to no more than 8%. Subsequently, reactive polyurethane hot melt adhesive is applied twice using a sculpted roller dot transfer method to first composite the basalt core yarn fabric with the polyester nonwoven fabric. Finally, the functional membrane is laminated onto the side of the polyester nonwoven fabric facing away from the basalt core yarn fabric, forming a three-layer composite structure. The composite fabric produced by this method exhibits good functionality and stability, and is soft and comfortable overall.
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