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US 6,551,430 B1Granted
Process for making a training pant having a unitary waist elastic system
AssigneeKimberly-Clark Worldwide, Inc.
InventorsFrank Steven Glaug, Margaret Ann Kato
Life of this patent
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Abstract
The present invention provides a process of making a child's disposable absorbent training pant having a unitary waist elastic system that provides a substantially uniform low tension over a wide size range, a more comfortable fit, and improved ease of use.
Claims25
A process having a machine direction and a cross direction for making disposable absorbent articles, comprising the steps of:
- continuously moving a base layer generally in a machine direction, the base layer comprising opposite edge portions generally extending in the machine direction,
- providing a plurality of absorbent structures having respective length dimensions greater than respective width dimensions,
- positioning the absorbent structures at spaced apart locations between the opposite edge portions of the base layer, such that the length dimensions of the absorbent structure are generally transverse to the machine direction,
- applying an adhesive, generally in the machine direction, at selected spaced apart zones of each edge portion, the zones of each edge portion being spaced apart in the machine direction,
- continuously delivering an elastic member generally in the machine direction onto each edge portion,
- folding each edge portion, generally in a cross direction, over the respective elastic member,
- joining together each folded edge portion and the elastic member,
- folding the continuously moving base layer along a fold line generally parallel to the machine direction, and
- forming a plurality of disposable absorbent articles having a respective plurality of closed-loop waist-elastic systems in which each waist elastic system has an average maximum magnitude of decay of less than about 66.67 grams in an extension range of about 175 millimeters to about 300 millimeters over the first three cycles.
6 more elements
A process having a machine direction and a cross direction for making disposable absorbent articles, comprising the steps of:
- continuously moving a base layer in a machine direction, the base layer comprising opposite edge portions generally extending in the machine direction,
- providing a plurality of absorbent structures at spaced apart locations between the opposite edge portions of the base layer, such that the length dimensions of the absorbent structures are generally transverse to the machine direction,
- continuously delivering an elastic member, generally in the machine direction, to each edge portion,
- folding each edge portion, generally in a cross direction, over the elastic member,
- joining together each folded edge portion and the elastic member,
- folding the continuously moving base layer along a fold line generally parallel to the machine direction, and
- forming a plurality of disposable absorbent articles having a respective plurality of waist-elastic systems in which each waist-elastic system has an average maximum rate of change of modulus of elasticity over a first three cycles of about 1.96 grams per millimeter in an extension range between about 175 millimeters to about 325 millimeters.
4 more elements
Dependencies are inferred from the claim text.