公开(公告)号：US20180371316A1

公开(公告)日：2018-12-27

申请号：US15779179

申请日：2016-11-25

Applicant: STORA ENSO OYJ

Inventor： Kaj Backfolk ,  Risto Kallio ,  Carl-Mikael Tag

IPC: C09K17/52 ,  D21H21/16 ,  D21H21/20 ,  D21H21/28 ,  D21H21/36 ,  D21H17/67 ,  D21H17/00 ,  D21H17/60 ,  D21H17/01 ,  D21H19/38 ,  C05G3/00 ,  A01G13/02

Abstract: A ground cover in the form of a mulch, allowing air and moist to permeate, which includes a paper substrate originating from fibre-bearing pulp, preferably emanating from lignocellulosic material, which has been web-formed or sheet-formed, characterized in that the substrate has been impregnated with supercritical fluid, preferably CO2, alternatively a fluid under high pressure such as near supercritical conditions, wherein also one or more colorant(s) is (are) present in said fluid. Also a method for its manufacture and use thereof are disclosed.