A polypropylene SMS nonwoven fabric and its preparation method

By using a specially formulated impregnation solution to form a network structure membrane layer in polypropylene SMS nonwoven fabric, the problem of poor barrier effect of nonwoven fabric during surgery is solved, and highly efficient anti-slip and anti-leakage performance is achieved.

CN117051594BActive Publication Date: 2025-10-31JASON FURNITURE(HANGZHOU) CO LTD
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Patent Information

Application Number
CN202311012795.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-12
Publication Date
2025-10-31
Estimated Expiration
2043-08-12

AI Technical Summary

Technical Problem

Existing non-woven fabrics used for medical drapes are not effective at blocking fluids during surgeries with large volumes of fluid, as they are prone to seepage and slippage, leading to bed contamination.

Method used

A high-barrier polypropylene SMS nonwoven fabric is prepared by using a combination of terminal vinyl silicone oil, terminal hydrogen silicone oil, crosslinking agent and acrylic monomers in the impregnation solution to form a membrane with a network structure. Combined with modified calcium carbonate and nitrile rubber, the density and anti-slip properties of the membrane are improved.

Benefits of technology

It improves the alcohol resistance, water repellency and oil repellency of nonwoven fabrics, enhances the strength and toughness of the membrane layer, reduces the risk of slippage, and improves the anti-leakage effect of surgical drapes.

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Abstract

This application relates to the field of nonwoven fabric technology, and in particular to a polypropylene SMS nonwoven fabric and its preparation method. The method for preparing a high-barrier polypropylene SMS nonwoven fabric involves using PP spunbond and PP meltblown materials to prepare an SMS nonwoven fabric prefabricated fabric, followed by impregnation with a solution, drying, and cooling to achieve the desired high-barrier polypropylene SMS nonwoven fabric. The impregnation solution for the high-barrier polypropylene SMS nonwoven fabric uses a combination of vinyl-terminated silicone oil, hydrogen-terminated silicone oil, a crosslinking agent, castor oil, and acrylic monomers. The film formed by the reaction of the vinyl-terminated silicone oil, hydrogen-terminated silicone oil, crosslinking agent, castor oil, and acrylic monomers exhibits high density, uniformity, and low surface energy, resulting in a high-barrier polypropylene SMS nonwoven fabric with excellent resistance to alcohol, water, and oil, as well as anti-slip properties.
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