Method of making elastic diapers, apparatus therefor, and product
AssigneePaper Converting Machine Company
InventorsJohn J. Bradley, Debra K. Hansen
Life of this patent
Estimating the term…
Abstract
A method for producing elastic disposable diapers, apparatus therefor and product therefrom which includes applying a continuous stripe of adhesive to stretched elastic ribbon, V-folding longitudinally spaced portions of the ribbon to immobilize the adhesive in the spaced portion, applying the intermediate flat portions of the stretched ribbon with exposed adhesive to a substrate, to form discrete diapers which have contractable portions therein.
Claims12
A method of securing longitudinally spaced portions of a stretched, flat faced elastic ribbon to a continuously moving web, the steps of:
- applying a continuous stripe of adhesive to one face of said ribbon,
- V-folding longitudinally spaced portions of said ribbon to bring the parts of said one face into confronting relation and to provide a series of longitudinally spaced non-folded portions, and
- securing said non-folded portions to said web.
A method of securing longitudinally spaced portions of a stretched, flat faced elastic ribbon to a continuously moving web, the steps of:
- applying a continuous strip of adhesive to one face of said ribbon,
- V-folding longitudinally spaced portions of said ribbon to bring the parts of said one face into confronting relation and to provide a series of longitudinally spaced non-folded portions,
- securing said non-folded portions to said web, and
- transversely severing said web and ribbon between adjacent non-folded portions whereby said non-folded portions selectively contract the web.
A method of manufacturing an elastic leg band disposable diaper comprising:
- advancing a moisture impervious web toward a ribbon uniting station,
- advancing a pair of stretched, flat faced elastic ribbons toward said station and prior to reaching said station,
- applying a continuous stripe of adhesive to one face of each of said ribbons,
- V-folding longitudinally spaced portions of each of said ribbons in synchronization to bring the parts of said one face into confronting relation and to provide a series of longitudinally spaced non-folded portions of said ribbon,
- securing in synchronism at said station said non-folded portions to said web,
- intermittently supplying absorbent batts to said web and thereafter applying a moisture pervious web to said batts and web and securing both of said webs together along longitudinal, marginal lines, and
- transversely severing said webs and ribbons between adjacent non-folded portions of said ribbons whereby said non-folded portions selectively contract the crotch-providing area of a diaper developed from said webs.
A method of manufacturing an elastic leg band disposable diaper comprising:
- advancing a moisture impervious web toward a uniting station and intermittently securing absorbent batts to said web,
- advancing a pair of stretched, flat faced elastic ribbons toward a ribbon uniting station and prior to the reaching said ribbon uniting station,
- applying a continuous stripe of adhesive to one face of each of said ribbons,
- V-folding longitudinally spaced portions of each of said ribbons in synchronization to bring the parts of said one face into confronting relation and to provide a series of longitudinally spaced non-folded portions in said ribbon, securing in synchronism at said station and said non-folded portions to said web,
- applying a moisture pervious web to said batts and web and securing both of said webs together along longitudinal, marginal lines, and
- transversely severing said webs and ribbons between adjacent non-folded portions of said ribbons whereby said non-folded portions selectively contract the crotch-providing area of a diaper developed from said webs.
Dependencies are inferred from the claim text.