Process for manufacturing disposable diapers and diaper briefs,

Details Process for manufacturing disposable diapers and diaper briefs, Process for manufacturing disposable diapers and diaper briefs,

1984-05-01

1989-01-31

Cashion, Jr., Merrell C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156229, B29C 6548, B32B 3108

Patent

active

048013455

ABSTRACT:
Adhesive is intermittently coated onto an elastic strip 4 which then passes over a grooved pulley 9 mounted on a slide or carriage 10 able to move intermittently on a slideway 11. A continuous flexible sheet consisting of a moisture-impermeable heat-sealable material is unreeled over the periphery of a rotary drum 3. The point of contact between the elastic strip 4, and the travelling impermeable sheet 2 is moved periodically in a direction transverse to the direction of travel of the sheet 2. This results in laying, along a curved path 4a of, a stretched elastic adhered to sheet 2. It is thus possible to make diaper units comprising crotch elastics edging the curvilinear profile of the leg openings or cut-outs.

REFERENCES:
patent: 3150023 (1964-09-01), Penman
patent: 3828367 (1974-08-01), Bourgeois
patent: 3950207 (1976-04-01), Amat
patent: 4081301 (1978-03-01), Buell
patent: 4293367 (1981-10-01), Klasek
patent: 4352355 (1982-10-01), Mesek et al.
patent: 4405397 (1983-09-01), Teed

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