초록 ▼

The invention disclosed sets forth a method and machine for forming a sleeve of a shrinkable, cellular polymeric material from a predecorated web. The web is processed to provide (1) a partial-depth slit along the longitudinal dimension, and (2) cross-dimension pleats. Predecorated shrunken neck lab

The invention disclosed sets forth a method and machine for forming a sleeve of a shrinkable, cellular polymeric material from a predecorated web. The web is processed to provide (1) a partial-depth slit along the longitudinal dimension, and (2) cross-dimension pleats. Predecorated shrunken neck labels are formed from the web for overlying the neck and closure of the bottle and including a pilfer-proof feature. Such a label is formed from the processed web by cutting a blank having the cross pleats therein and winding the blank on a mandrel to overlap the ends and seam the overlap to make a sleeve. The sleeve is stripped onto the top neck and over the closure of a bottle at room temperature to a label position and shrunken to a snug fit, the pleats absorbing wrinkles that occur in shrinking the material onto a “cold”bottle. The disclosure includes a novel machine for making the sleeve from a plastic web and placing it on the bottle. There is disclosed a combination of novel devices in the machine including a slitting device, pleating device, feed and winding device, hot air heating device for sealing the seam of a sleeve and for pressing the seam, and an article handling mechanism for indexing the bottles coaxially with a sleeve and transferring the sleeve over the bottle to label position at production rates. With the sleeves of shrinkable label material thusly placed, the bottles are carried through a device for heating the label sufficiently to shrink it to final form. There is also disclosed the step and means for treating the bottle with adhesive before transferring the label sleeve onto it, providing an adhesive bond between the neck of the bottle and the shrunken label sleeve which enhances the function of the pilfer-proof label.

대표청구항 ▼

The method of labelling containers each having a closure applied on one end thereof, comprising providing a web of preprinted, heat shrinkable, organic thermoplastic material, forming transverse pleats across the width of the web at spaced intervals along the length of the web, cutting lengths of sa

The method of labelling containers each having a closure applied on one end thereof, comprising providing a web of preprinted, heat shrinkable, organic thermoplastic material, forming transverse pleats across the width of the web at spaced intervals along the length of the web, cutting lengths of said material from the web to form label blanks, each of the blanks having plural transverse pleats thereon, wrapping each of said blanks on a mandrel, overlapping the leading and trailing ends of the blank on the mandrel and bonding the overlapped ends together to form a seamed sleeve, the sleeve having said pleats disposed on either side of the said seam thereof, placing the sleeve over a container with a closure thereon, the sleeve being positioned to encircle a portion of the container adjacent the closure and the closure, and heating the label sleeve sufficiently to shrink it into snug surface engagement with said container and closure and thereby isolate any wrinkles at said pleats. The method of making a pilfer-proof package comprised of the steps of: providing a web of heat shrinkable organic thermoplastic material, scoring the web lengthwise thereof to form a partial depth slit in the web to provide a predetermined weakened line therein that extends along the length dimension thereof and disposed laterally in the web corresponding to a predetermined height location in labels to be made therefrom, cutting lengths of said material from the web to form label blanks, wrapping each of said blanks on a mandrel, with said slit adjacent the mandrel and extending circumferentially of the mandrel, overlapping the leading and trailing ends of the blanks on the mandrel and heat sealing them together to form an axially seamed label sleeve, applying pressure to the heat sealed seam on the mandrel, placing the label sleeve over a bottle having a skirted closure closing one end thereof, the label sleeve encircling the neck of the bottle and closure and axially positioned thereon such that the circumferential slit is located adjacent the annular terminal edge Of the closure skirt, and heating the material of the label sleeve sufficiently to shrink it into annular snug surface engagement with said bottle neck and closure providing a surface conforming, pilfer detecting label thereon.