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US 2012/0258277 A1Published application
Nozzle assembly and composite stretch material produced by using the same
AssigneeUnicharm Corporation
InventorKazuo Ukegawa
Life of this patent
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AssigneeUnicharm Corporation
InventorKazuo Ukegawa
Estimating the term…
A nozzle assembly includes an upstream block, an upstream shim, an intermediate shim, a downstream shim and a downstream block arranged in this order in a machine direction MD from the upstream side to the downstream side. A lower end of the nozzle is formed with grooves as guide grooves to support elastics. A first pipe, a dispersion slit for a web and convergence slits for a web define first flow channels wherein the slits are respectively formed with outlets for a web. A second pipe, a dispersion slit for elastics and convergence slits for elastics define a second flow channels wherein the slits are respectively formed with outlets for elastics. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD.
A nozzle assembly adapted to coat a web having a first direction and a second direction orthogonal to the first direction with an adhesive and thereby to form adhesive lines for a web extending in the first direction and spaced one from another in the second direction and also to form adhesive lines for elastics adapted to coat elastics lying between the adhesive lines for a web or between imaginary extensions of the adhesive lines for a web, wherein:
A composite stretch material having a longitudinal direction and a transverse direction and comprising:
Dependencies are inferred from the claim text.