摘要:
The invention pertains to a method for the manufacture of a packaging material (1; 21) for the production of packaging blanks and packages and comprising the steps of providing at least one surface layer (2, 2'; 22, 22') in the form of a continuous material web and substantially consisting of cellulosic fibres and applying a distance layer (3; 23) comprising a matrix material and reinforcement fibres thereto so that said surface layer (2, 2'; 22, 22') is bonded to said distance layer (3; 23). The matrix material in the distance layer (3; 23) is in an expandable state when it is applied to the surface layer (2, 2'; 22, 22') and is expanded in a separate process step, subsequent to the application step. The invention also concerns expandable packaging materials.
摘要:
The invention relates to a punched blank for a tray-like package. It comprises a bottom part (1), two long sides (2) and two short sides (3) in one piece with the bottom part (1) and marked with respect to this by fold lines. The invention is characterized in that the fold lines (7) between the bottom part (1) and at least the long sides (2) are directed outwardly at the ends and form an angle with the middle part (6) of the fold lines of 2-20 DEG .
摘要:
The invention pertains to a method for the manufacture of a packaging material (1; 21) for the production of packaging blanks and packages and comprising the steps of providing at least one surface layer (2, 2'; 22, 22') in the form of a continuous material web and substantially consisting of cellulosic fibres and applying a distance layer (3; 23) comprising a matrix material and reinforcement fibres thereto so that said surface layer (2, 2'; 22, 22') is bonded to said distance layer (3; 23). The matrix material in the distance layer (3; 23) is in an expandable state when it is applied to the surface layer (2, 2'; 22, 22') and is expanded in a separate process step, subsequent to the application step. The invention also concerns expandable packaging materials.