Plastic container with multilayer label applied by in-mold labeling
AssigneeOwens-Illinois Plastic Products Inc.
InventorJames E. Heider
Life of this patent
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Abstract
A plastic container having a multilayer label applied by in-mold labeling during the blow molding of the plastic container. The label comprises a non-cellular inner layer, an intermediate cellular layer compatible with the inner layer and heat bonded to the inner layer, and an outer non-cellular plastic layer compatible with the intermediate cellular layer and heat bonded thereto. The label is positioned in a mold cavity with the outer layer in contact with the mold. When a hot plastic parison at molding temperature is expanded by fluid pressure against the walls of the mold to form a container, the non-cellular inner layer becomes bonded to the outer surface of the container by heat from the container.
Claims17
A plastic container having a multilayer label applied by in-mold labeling during the blow molding of the plastic container wherein the label consists of only three layers;
- a non-cellular plastic inner layer,
- an intermediate cellular plastic layer compatible with the inner layer and heat bonded to the inner layer without adhesive,
- and an outer non-cellular plastic layer compatible with the intermediate cellular layer and heat bonded to the intermediate layer without adhesive,
- said inner layer being heat bonded at molding temperature to the outer surface of the plastic container.
A plastic container having a multilayer label applied to the plastic container wherein the label comprises three layers:
- a thin non-cellular plastic inner layer,
- an intermediate cellular plastic layer compatible with the inner layer and heat bonded to the inner layer without adhesive,
- and a thin outer non-cellular plastic layer compatible with the intermediate cellular layer and heat bonded to the intermediate layer without adhesive,
- said inner layer being heat bonded to the outer surface of the plastic container.
Dependencies are inferred from the claim text.