Patent ID: 7459191
Filing Date: 2008-12-02
Classification: B65D,B65F,Y10S,Y10T

Abstract:
1. A retaining element for attachment to a sheet of thermoplastic material, the retaining element having a length oriented along a longitudinal X-axis and a width oriented along a transverse Y-axis and further comprising: a bonding portion for attachment to the sheet wherein the bonding portion defines a substantially continuous attachment to the sheet in the longitudinal X-axis and a partial attachment to the sheet in the transverse Y-axis an activatable portion comprising an elastic material having a first condition wherein the activatable portion is set and a second condition wherein the activatable portion is elastic and is urged to shrink a predetermined amount, the material capable of changing from the first condition to the second condition upon being activated; and wherein upon activation of the activatable portion, the retaining element shrinks thereby producing a puckering of the sheet to provide a shirred appearance.