BARRIER FABRIC Russian patent published in 2013 - IPC B32B33/00 B82B1/00 

FIELD: process engineering.

SUBSTANCE: invention relates to hygiene and sanitary, particularly, to barrier fabric. Fabric with layer of nanofibre for mechanical trapping of organic matter consists of sandwich structure containing bearing nonwoven material to support, at least, one layer of nanofibre. Note that said layer of nanofibre has protective layer wherein separated sandwich structures are interconnected. Layer of nanofiber creates barrier to prevent an ingress of allergens and consists of organic polymer material. Said coating layer may be made of nonwoven material of spanbond type, meltblown type, cotton fabric and/or mix of cotton with polyester. In compliance with one version, at least one layer of nanofibre is arranged on case material to create barrier against microorganisms. Note also that said layer consists of organic hydrophobic material of polyurethane or PVDF, or their copolymers. Note that separate layers of sandwich structure are interconnected. In compliance with another version, barrier fabric consists of sandwich structure including base spanbond-type nonwoven material to carry, at least, one layer of nanofibre secured thereto consisting of hydrophobic polymer of polyurethane or fluoropolymer PVDF, or copolymer thereof. Note here that separate sandwich structures are interconnected.

EFFECT: higher efficiency of entrapping organic substances and fluids.

9 cl, 2 dwg, 4 ex