Patent ID: 11903800
Assignee: FAMECCANICA.DATA S.P.A.
Field: Surface technology, coating (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 8:
9. A method for producing the continuous transversely extensible elastic laminate according to claim 1 comprising:
feeding a first continuous web in a longitudinal direction, the first continuous web having a central portion and first and second edge portions on opposite sides of the central portion,
feeding a continuous elastic tape in said longitudinal direction,
elastically stretching said continuous elastic tape in a direction transversal to said longitudinal direction, and applying said continuous elastic tape to the central portion of said first continuous web while stretched in said transversal direction,
feeding in said longitudinal direction, a continuous support web having a row of micro-hook pads fixed to a planar surface of the support web, wherein said micro-hook pads are spaced apart from each other in said longitudinal direction,
cutting the continuous support web along two continuous undulated cutting lines passing between each pair of adjacent micro-hook pads so as to form two separate continuous tab chains having respective continuous base portions and respective tabs carrying respective micro-hook pads fixed to respective planar surfaces of said tabs, wherein said cutting lines are distanced from edges of the micro-hook pads, so that each micro-hook pad is completely surrounded by a portion of said planar surface,
applying said two continuous base portions of said continuous tab chains to respective first edge portions of said first continuous web,
feeding a second continuous web in said longitudinal direction, the second continuous web having a central portion and first and second edge portions on opposite sides of the central portion,
applying said second continuous web to the first continuous web and sandwiching said continuous elastic tape between respective central portions of said first and second webs, and said two continuous base portions of said continuous tab chains between respective first and second edge portions of the first and second continuous webs, and
joining to each other said first and second webs, said elastic tape and said two continuous base portions of said continuous tab chains by a pattern of spot welds.