公开(公告)号：US20240009950A1

公开(公告)日：2024-01-11

申请号：US18034563

申请日：2021-10-12

Applicant: PULPAC AB

Inventor： Martin Ljungberg ,  Mathias Bergfjord

IPC: B31B50/14 ,  B31B50/22 ,  B31D5/02

CPC classification number: B31B50/142 ,  B31B50/22 ,  B31D5/02

Abstract: A method and system for edge-forming cellulose products from an air-formed cellulose blank structure. The system comprises a first mould part having an edge-forming device with a protruding element configured for compacting and separating fibres of the cellulose blank structure and a second mould part arranged for cooperating with each other. The edge-forming device is movably arranged in relation to a base structure of the first mould part, and is adapted for interacting with a pressure member arranged in the base structure. The method includes the steps: providing the air-formed cellulose blank structure, and forming a compacted edge structure of the cellulose products by separating fibres of the cellulose blank structure with the protruding element, applying an edge-forming temperature, and compacting the cellulose blank structure by applying an edge-forming pressure onto the cellulose blank structure between the protruding element and the second mould part.

公开(公告)号：US12208591B2

公开(公告)日：2025-01-28

申请号：US18034563

申请日：2021-10-12

Applicant: PULPAC AB

Inventor： Martin Ljungberg ,  Mathias Bergfjord

IPC: B31B50/14 ,  B31B50/22 ,  B31D5/02

Abstract: A method and system for edge-forming cellulose products from an air-formed cellulose blank structure. The system comprises a first mould part having an edge-forming device with a protruding element configured for compacting and separating fibres of the cellulose blank structure and a second mould part arranged for cooperating with each other. The edge-forming device is movably arranged in relation to a base structure of the first mould part, and is adapted for interacting with a pressure member arranged in the base structure. The method includes the steps: providing the air-formed cellulose blank structure, and forming a compacted edge structure of the cellulose products by separating fibres of the cellulose blank structure with the protruding element, applying an edge-forming temperature, and compacting the cellulose blank structure by applying an edge-forming pressure onto the cellulose blank structure between the protruding element and the second mould part.