DURABLE HIGH PERFORMANCE ADHESIVE-BONDED ALLERGEN BARRIER LAMINATES AND PROCESS FOR MAKING SAME

摘要

A laminate useful as an allergen barrier structure, and process for making said laminate, comprising in order, a woven fabric layer having a thread count of 180 to 400; a nonwoven allergen barrier layer having a basis weight of from 6 to 10 g/m2 and consisting of fibers having average diameter of from 100 to 450 nanometers; and a tricot knit fabric layer; wherein the layers are attached by at least one adhesive distributed in discrete areas on the allergen barrier layer and penetrating into at least 70% of the thickness of that layer and also penetrating into but not through the woven and knit fabric layers. The laminate has a total basis weight of from 50 to 300 g/m2 and a filtration efficiency after 35 washings of 95 percent or greater for a 1 micrometer particle challenge of up to 1.6 liters per minute airflow.