Process for the fabrication of disposable diapers and other disp

Details Process for the fabrication of disposable diapers and other disp Process for the fabrication of disposable diapers and other disp

1997-04-01

2000-02-22

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156290, 604366, 604370, B32B 3100

Patent

active

060275936

ABSTRACT:
The present invention relates to a rapid and low cost procedure for joining webs and films containing dissimilar polymers. It is especially applicable but not limited to the construction and assembly of disposable products such as infant and adult incontinent products, feminine hygiene products, and other low-cost, high volume disposable products. The process involves producing a high rate of heat flux through the dissimilar materials where the material with the higher plastic point is at the influx point and the lower plastic point material is adjacent and further from the heat source. In addition to this constraint and as a necessary component the application of the high rate of heat flux must be accompanied by a pressure of appropriate to the difference in plastic points and to the relative thickness of the dissimilar materials to be joined.

REFERENCES:
patent: 4103062 (1978-07-01), Aberson et al.
patent: 5370764 (1994-12-01), Alikhan
patent: 5507895 (1996-04-01), Suekane
patent: 5562790 (1996-10-01), Ehlert et al.
patent: 5562793 (1996-10-01), Menard
patent: 5580418 (1996-12-01), Alikhan
patent: 5599420 (1997-02-01), Yeo et al.
patent: 5667619 (1997-09-01), Alikhan
patent: 5667625 (1997-09-01), Alikhan

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