Lightweight, durable apparel and laminates for making the same

摘要

Laminates are described having a durable outer film surface for use in making lightweight liquidproof articles of apparel, such as outerwear garments. A method of making the laminate and a lightweight outerwear garment having an abrasion resistant exterior film surface is described.

主权项

1. An outerwear garment comprising:
a laminate comprising:
a first layer comprising a porous polytetrafluoroethylene (PTFE) membrane having an oleophobic outer film surface and an inner film surface opposing said outer film surface, said porous PTFE membrane having an average ball burst load greater than 17 lb force; anda second layer comprising a woven textile bonded to said inner film surface of said porous PTFE membrane,wherein said laminate is oriented in said garment such that said outer film surface of said porous PTFE membrane faces the environment and said woven textile faces a wearer of said outerwear garment,wherein said laminate is liquidproof after more than 3000 abrasion movements on the outer film surface when tested according to the Liquidproof (Suter) After Hook Abrasion Test, andwherein said laminate has a moisture vapor transmission rate (MVTR) greater than 10,000 g/m2/24 hours,wherein said porous PTFE membrane has an average maximum load in the transverse and longitudinal direction greater than 10 N,wherein said porous PTFE membrane has an average modulus in the transverse and longitudinal direction greater than 40 MPa,wherein said porous PTFE membrane has an average matrix tensile strength in the longitudinal and transverse direction greater than 90 MPa.