公开(公告)号：US20240181683A1

公开(公告)日：2024-06-06

申请号：US18564861

申请日：2022-04-26

申请人： ROTTNEROS PACKAGING AB

发明人： Henrik GRANKVIST ,  Niklas LUNDIN

IPC分类号： B29C43/02 ,  B29C43/14 ,  B29L31/00 ,  B65D1/34 ,  B65D21/02

CPC分类号： B29C43/021 ,  B29C43/14 ,  B65D1/34 ,  B65D21/0212 ,  B29C2043/026 ,  B29C2043/144 ,  B29L2031/7162

摘要： A compression moulding tool for manufacturing a fibrous pulp tray having a floor portion and walls extending from the floor portion. The tool comprises a first female mould element comprising a plurality of first recessed portions, a water permeable filter arranged in the first female mould element and configured to follow the surface of the female mould element, a second female mould element comprising a plurality of second recessed portions at locations corresponding to the first recessed portions and smaller than the first recessed portions, and a male mould element configured to press against the first and second female mould elements to compress a fibrous pulp product located therebetween, the male mould element having a surface profile free from macroscopic features at locations corresponding to the first and second recessed portions of the first and second female mould.