Process for forming a laminate
AssigneeInnovative Elastics Limited
InventorVictor Spencer Day
Life of this patent
Estimating the term…
Abstract
A process for forming a multi-strand elastic laminate comprising the steps of: (a) providing a multi-strand elastic feed (1); (b) feeding the multi-strand elastic via a feed nip roll (2) for further processing; (c) imparting a tension to the multi-strand elastic feed; (d) separating the multi-strand elastic feed into strands (4) separated in the cross-direction; (e) applying a hot melt adhesive to both surfaces of each strand separated in the cross-direction to give adhesive coated separated strands (6); and (f) sandwiching the adhesive coated separated strands between two further layers of material (7) whereby the further layers of material are adhered to either side of the adhesive coated elastic strands.
Claims24
A process for forming a multi-strand elastic laminate comprising the steps of:
- (a) providing a multi-strand elastic feed (1);
- (b) feeding the multi-strand elastic via a feed nip roll (2) for further processing;
- (c) imparting a tension to the multi-strand elastic feed;
- (d) separating the multi-strand elastic feed into strands (4) separated in the cross-direction by a distance in the range from 2 to 5 mm;
- (e) applying a fiberized hot melt adhesive from a nozzle positioned above the strands to both surfaces of each strand separated in the cross-direction, each strand coated separately at a coverage in the range 10 to 40 mg/m/strand, to give adhesive coated separated strands (6);
- and
- (f) sandwiching the adhesive coated separated strands between two further layers of material (7) whereby the further layers of material are adhered to either side of the adhesive coated elastic strands.
A process for forming a multi-strand elastic laminate comprising the steps of:
- (a) providing a multi-strand elastic feed (1) having 10 to 70 strands;
- (g) feeding the multi-strand elastic via a feed nip roll(2) for further processing;
- (h) imparting a tension to the multi-strand elastic feed;
- (i) separating the multi-strand elastic feed into strands (4) separated in the cross-direction by a distance in the range from 2 to 5 mm;
- (j) applying a fiberized hot melt adhesive from a nozzle positioned above the strands to both surfaces of each strand separated in the cross-direction, each strand coated separately at a coverage in the range 10 to 40 mg/in/strand, to give adhesive coated separated strands (6);
- and
- sandwiching the adhesive coated separated strands between two layers of non-woven material that are flat when the adhesive coated separated strands are sandwiched between them whereby the two layers of non-woven material are adhered each to one side of the adhesive coated elastic strands.
Dependencies are inferred from the claim text.