公开(公告)号：US11965291B2

公开(公告)日：2024-04-23

申请号：US17836077

申请日：2022-06-09

Applicant: MONDI AG

Inventor： Elisabeth Schwaiger ,  Johannes Rosenwirth

IPC: D21H27/10 ,  D21G1/02 ,  D21H11/04 ,  D21H17/17 ,  D21H17/19 ,  D21H17/29 ,  D21H17/37 ,  D21H17/66 ,  D21H17/68 ,  D21H19/40 ,  D21H19/58 ,  D21H19/84 ,  D21H21/16 ,  D21H21/18 ,  D21H27/02

CPC classification number: D21H27/10 ,  D21G1/0233 ,  D21H11/04 ,  D21H17/17 ,  D21H17/19 ,  D21H17/29 ,  D21H17/375 ,  D21H17/66 ,  D21H17/68 ,  D21H19/40 ,  D21H19/58 ,  D21H19/84 ,  D21H21/16 ,  D21H21/18 ,  D21H27/02

Abstract: Packaging paper consisting of an unbleached kraft paper with a kappa value according to ISO 302:2015 between 38 and 60, preferably between 40 and 58 as base paper, which is optionally coated on at least one side, wherein the kraft paper is made of at least 90% primary pulp, has a basis weight according to ISO 536:2019 between 60 g/m2 and 150 g/m2 and an air resistance according to ISO 5636-5:2013 (Gurley) between 5 and 30 seconds, wherein the base paper has an elongation at break in the machine direction according to ISO 1924-3:2005 between 2.5% and 8.5% and has a Bendtsen roughness according to ISO 8791-2:2013 between 70 ml/min and 600 ml/min, preferably between 150 ml/min to 550 ml/min, more preferably 200 ml/min to 500 ml/min, and process for its production.

公开(公告)号：US11939725B2

公开(公告)日：2024-03-26

申请号：US17413684

申请日：2019-12-11

Applicant: MONDI AG

Inventor： Elisabeth Schwaiger ,  Franz Joebstl ,  Reinhard Kainz

IPC: D21H27/08 ,  D21H11/20 ,  D21H15/02 ,  D21H25/14

CPC classification number: D21H27/08 ,  D21H11/20 ,  D21H15/02 ,  D21H25/14

Abstract: A hot-extraction paper consisting substantially of cellulose and manufacturing assistants needed in cellulose and manufacturing assistants needs in cellulose production, such as pH modifiers based on acids and/or bases, the paper comprises exclusively cellulose having fibre lengths of at least 2.0 mm on length-weighted average, more particularly at least 2.5 mm on length-weighted average, and has isotropic extension properties which are substantially equal in machine and cross directions and amount to at least 7.5%, more particularly at least 8.5%.