Disposable Diaper And Cushion Sheet
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United States of America Patent
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app pub date -
Aug 5, 2015
filing date -
Aug 20, 2014
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Abstract
To maintain, in a wide state, the spaces in a ventilation channel formed when a waist expansion member contracts. This disposable diaper has formed therein, on one or both of a front part (1) and a rear part (2), a cushion part (40). The cushion part (40) includes: an inner sheet (41); an outer sheet (42); one or a plurality of waist expansion members (43); and a cushion forming sheet (44). In a state where the waist expansion member (43) is stretched in the width direction, the member is secured between the inner sheet (41) and the outer sheet (42). The cushion forming sheet (44) overlaps one or both of the inner sheet (41) and the outer sheet (42), and is joined thereto so that in the width direction joining portions (51) and non-joining portions (52) are alternatingly continuous. The joining portions (51) are formed by joining-lines (53) which are straight and extend in the longitudinal direction and at least two columns of which are side by side. The space (second space (D2)) between the joining-line columns in one joining portion is narrower than the space (first space (D1)) between adjacent joining portions.
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