Abstract: The method includes the step of providing a cylindrical mandrel with vacuum openings around the circumference thereof and of a diameter substantially equal to the maximum diameter of the container. A thermoplastic strip is then wrapped around both the container and the mandrel, and just that portion of the strip enclosing the container is heat shrunk to follow closely the contour of the container. Then, the mandrel is withdrawn from the thermoplastic sleeve and that portion of the sleeve extending above the container is heat shrunk to engage snugly over the top of the container lid.

Abstract: We have disclosed a method of applying a plastic label to a container wherein a label is severed from the strip of polymer label material. A hot melt adhesive is applied to an area along the leading edge of the label and a solvent of the polymer is applied to an area along the trailing edge of said material to form a tacky solution. The label is then applied to a container so that when heat shrunk, the tacky solution solidifies and the hot melt adhesive crystalizes to release its grip on the container.

Abstract: Cylindrical containers are rolled between two parallel belts which travel in opposite directions and engage diametrically opposite sides of the containers. One of the belts carries labels under the rolling containers so that the label is wrapped around it. The other belt moves at a somewhat greater velocity so that the container moves slowly downstream as they roll rapidly about their own axes. From the labeling belt, the drive belt continues to move the containers over a roll-on pad on which the label is pressed firmly in place.

Abstract: The disclosure is of a labeling machine wherein a label transport drum carries one or more pairs of vacuum pads to grip the leading and trailing edges of a label. A knife carried directly on the drum acts with a stationary blade to sever each label from a continuous web. The vacuum pads are retracted as they pass the stationary blade, but when they carry a label past a glue roller, the vacuum pads are extended to press the label against the roller. If desired, two glue rollers may be employed, with different glues being applied to the leading and trailing edges of each label. In that case, one pad is retracted and the other extended at each glue roller.