STRETCHING STRUCTURE OF ABSORBENT PRODUCT AND METHOD OF ITS MANUFACTURING Russian patent published in 2020 - IPC A61F13/51 

Abstract RU 2723820 C2

FIELD: manufacturing technology; technological processes.

SUBSTANCE: object of the invention is to provide a combination of flexibility and ability to fix elastically extensible elements when using hot-melt adhesives for fixing elastically extensible elements and fixing first sheet layer and second sheet layer. In order to solve said problem, first sheet layer (12S) formed from non-woven material, second sheet layer (12H), formed from non-woven material and opposite to one side of first sheet layer (12S), and plurality of elongate, elastically stretchable elements (19), provided along direction of stretching at distances from each other between first sheet layer and second sheet layer. Both ends of elastically extensible elements (19) are attached to at least one of first sheet layer (12S) and second sheet layer (12H) by first hot-melt adhesive (71). First sheet layer (12S) and second sheet layer (12H) are bonded by second hot melt adhesive (72) in zone passing in stretching direction and corresponding to gap between both ends of resiliently stretchable element (19). Retention capacity of the first hot-melt adhesive (71) is higher than that of the second hot-melt adhesive (72).

EFFECT: stretching structure of the absorbent product and method of its manufacturing are proposed.

11 cl, 25 dwg

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RU 2 723 820 C2

Authors

Ishikawa, Yasuko

Dates

2020-06-17Published

2017-01-25Filed