Systems and methods for forming laminates with patterned microwave energy interactive material

摘要

Portions of microwave energy interactive material may be cut and removed during intermediate steps in a lamination processes, so that remaining microwave energy interactive material in a resultant laminate is arranged in a pattern. Regarding the removal of the portions of the microwave energy interactive material, a compound laminate may be delaminated into parts, and one of the parts may be a sacrificial laminate that includes the removed portions of the microwave energy interactive material.

主权项

1. A method of forming a laminate comprising a pattern of microwave interactive material, the method comprising:
forming a compound laminate comprising first, second and third webs, wherein
the third web is positioned between the first and second webs,the third web comprises microwave interactive material and a plurality of lines of disruption at least partially defining first and second pluralities of sections of the third web,the forming of the compound laminate comprises bonding both of the first and second pluralities of sections of the third web to the second web with adhesive material, andthe bonding of both of the first and second pluralities of sections of the third web to the second web is comprised of the second plurality of sections of the third web being adhesively bonded to the second web more securely than the first plurality of sections of the third web are adhesively bonded to the second web, wherein:
the bonding of both of the first and second pluralities of sections of the third web to the second web with adhesive material is comprised of the adhesive material between the second and third webs being arranged in a pattern of adhesive segments so that there are unbonded areas between the second and third webs, andthe unbonded areas are configured so that the second plurality of sections of the third web are adhesively bonded to the second web more securely than the first plurality of sections of the third web are adhesively bonded to the second web; and then separating the compound laminate into parts comprising a first laminate and a second laminate, wherein
the first laminate comprises the first web and the first plurality of sections of the third web,the second laminate comprises the second web and the second plurality of sections of the third web, andthe separating comprises
adhesive bond failure between the second web and the first plurality of sections of the third web,relative movement between the first and second webs, andthe adhesive bond failure being responsive to the relative movement between the first and second webs.