In-mold labeling systems with polymeric label receptor and in-mold labeling methods therewith

摘要

An in-mold labeling system includes a molding apparatus having a first mold half and a second mold half that opposes the first mold half, the mold halves defining at least one mold cavity contained within a cavity wall. The in-mold labeling system further comprises a polymeric label receptor fixed to at least a portion of the cavity wall of the at least one mold cavity. The polymeric label receptor has a tacky contact face facing the inside of the at least one mold cavity when the molding apparatus is in the closed position. During a molding process, the tacky contact face of the polymeric label receptor receives a mold-side face of a label. The label is held in position against the tacky contact face during the molding process by surface tension between the mold-side face of the label and the tacky contact face of the polymeric label receptor.

主权项

1. An in-mold labeling system comprising:
a molding apparatus comprising a first mold half and a second mold half that opposes said first mold half, said molding apparatus having a closed position in which a first surface of said first mold half and a second surface of said second mold half together define at least one mold cavity contained within a cavity wall; and a polymeric label receptor fixed to at least a portion of said first surface or said second surface, said polymeric label receptor having a tacky contact face facing the inside of said at least one mold cavity when said molding apparatus is in said closed position,wherein said tacky contact face of said polymeric label receptor receives a mold-side face of a label during a molding process and said label is held in position against said tacky contact face during said molding process by surface tension between said mold-side face of said label and said tacky contact face of said polymeric label receptor, and wherein said polymeric label receptor is a cured or vulcanized layer selected from the group consisting of silicone elastomers, room-temperature vulcanizing silicone elastomers, polyurethanes, and polyacrylates.