42results about How to "No risk of failure" patented technology

The invention provides a method for manufacturing sheet-shaped packaging materials. The method comprises the following steps: expanding a paper core layer and punching an opening hole, wherein a fiber direction of the paper core layer extends along the length direction; printing a printing layer on the outer surface of the paper core layer; extending a pattern and character direction of the printing layer along the width direction of the paper core layer; extruding and laminating a thermoplastic material on the printing layer to form an outermost layer; extruding and laminating a thermoplastic material on the inner side face of the core layer to form an intermediate layer; compounding a barrier layer on the inner side face of the core layer by the intermediate layer; extruding and laminating a thermoplastic material on an aluminum foil layer to form a binding agent layer; extruding and laminating a thermoplastic material on the binding agent layer to form an innermost layer; pressing a vertical fold line, a transverse fold line and an inclined fold line on one side of the outermost layer; and slitting a continuous packaging material of the plurality of sheet-shaped packaging materials to form the single-sheet packaging materials. The packaging materials can have a relatively good fold line effect by using relatively small pressure when the fold lines are pressed.