Differentially stretched elastic

Details Differentially stretched elastic Differentially stretched elastic

1981-10-01

1983-02-01

Massie, Jerome W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With stretching or tensioning means

11212126, 156164, 156229, 156324, 156554, B32B 3108

Patent

active

043714170

ABSTRACT:
Apparatus for inserting elastic strips into elastic leg diapers wherein elastic strips are adhesively secured continuously along the crotch area and in relaxed condition along the waist areas including a mechanism for feeding a continuous strip of elastic at a constant rate, a mechanism for feeding a continuous sheet of diaper material at a constant rate, and an oscillating arm for guiding the sheet of diaper material and inducing periodic variations in the velocity or distance of the diaper material with respect to the elastic feeding mechanism, thereby alternately stretching and relaxing predetermined lengths of continuous elastic strips as they are adhesively secured to the diaper material.

REFERENCES:
patent: 2670702 (1954-03-01), Galkin
patent: 2681019 (1954-06-01), Liebowitz et al.
patent: 2681020 (1954-06-01), Leibowitz et al.
patent: 3329549 (1967-07-01), Vilutis
patent: 3443532 (1969-05-01), Posey et al.
patent: 4081301 (1978-03-01), Buell
patent: 4293367 (1981-10-01), Klasek et al.

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