公开(公告)号：US3839142A

公开(公告)日：1974-10-01

申请号：US28842472

申请日：1972-09-12

Applicant: WIGGINS TEAPE RES DEV

Inventor： CLARKE D ,  BIGGS I ,  WYCOMBE W ,  SMITH M

IPC: D21H27/00 ,  D21F11/00 ,  D21H17/37 ,  D21H17/66 ,  D21D3/00

CPC classification number: D21F11/002 ,  D21H17/37 ,  D21H17/66

Abstract: Water-repellent non-woven fibrous sheet material is formed from a suspension of fibres in a foam containing a liquid medium, a gas, and a surface active agent. The sheet material formed from the suspension is treated to destroy the surface active agent via chemical reaction with polyvalent metal cations and is then saturated with an organic water-repellent material and is heated to effect drying of the sheet material.

Abstract translation: 防水性非织造纤维片材由包含液体介质，气体和表面活性剂的泡沫中的纤维悬浮液形成。 对由悬浮液形成的片材进行处理以通过与多价金属阳离子的化学反应破坏表面活性剂，然后用有机防水材料饱和并加热以实现片材的干燥。