Abstract: A label or seal consists of a transparent base foil having an adhesive layer on one side. An intermediate layer or film is applied to the side having the adhesive layer, adhesion between the base foil and the intermediate layer being decreased in some regions. A cover foil is provided which, with its adhesive layer, is laminated onto the other side of the base foil. The cover foil is irreversibly stretchable under tension and/or easily breakable. Further, a safety rim is formed by a portion of the cover foil which extends past the periphery of the base foil.
Abstract: A label essentially comprises a top layer which can be printed and/or inscribed and a water-soluble adhesive layer. The adhesive layer can also be protected by a covering layer. The top layer is formed from polyvinyl alcohol which is preferably insoluble in cold water but soluble in hot water. The adhesive layer comprises a synthetic adhesive which is soluble in water and represents, in particular, a contact adhesive or permanent adhesive. The label is resistant to the action of cold water but is soluble in hot water, and is suitable for labeling containers with a smooth surface.
Type:
Grant
Filed:
October 2, 1981
Date of Patent:
April 24, 1984
Assignees:
Hoechst Aktiengesellschaft, Joachim Dudzik, Winfried Dudzik
Inventors:
Joachim Dudzik, Winfried Dudzik, Wolfgang Zimmermann, Gunther Pospich