B PERFORMING OPERATIONS; TRANSPORTING
B32 LAYERED PRODUCTS
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
B32B5/00 Layered products characterised by the non- homogeneity or physical structure; , i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
B32B5/02 characterised by structural features of a; fibrous or filamentary; layer
B32B5/022 Non-woven fabric