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AssigneeKimberly-Clark Worldwide, Inc.
InventorsWilliam Bela Haffner, Michael Tod Morman, Jack Draper Taylor, Jon Edward Tinsley
Estimating the term…
Transversely stretchable elastic laminated fabric with cloth-like facings was made by a two-step process. In the first step an inelastic laminate was made by continuously extruding an elastomer sheet between two plies of a fibrous sheet and joining the plies by applying pressure on them between a closed gap niproll assembly. Two longitudinal slits were made into the laminate. Then the rolls of inelastic laminate so made were taken to an oven and the laminate was unwound and pulled through the oven at an elevated temperature, while tension on the web was increased until the slits necked. The necked laminate was wound up on a takeup roll. When samples were unwound, surprisingly they did not grow in width, and they showed good CD-elasticity (elongation and springback). Breathability of the laminate was superior to the laminate formed using an open niproll assembly gap.
A cross-direction extensible elastic laminate produced by laminating at least one fibrous layer to at least one elastic layer and subsequently necking and heating said laminate.
A cross-direction extensible elastic laminate produced by laminating at least one unnecked fibrous layer to at least one elastic layer, gathering said laminate and subsequently necking and heating said laminate.
An elastic, laminated fabric comprising at least one fibrous layer and one elastic layer, wherein said fabric has a hydrohead and a water vapor transmission rate and wherein said water vapor transmission rate is at least about 1000 g/m.sup.2 /24 hours.
An elastic, laminated fabric comprising at least one fibrous layer and one elastic layer, wherein said fabric has a hydrohead and a water vapor transmission rate and wherein the water vapor transmission rate is at least about 1000 g/m.sup.2 /24 hours and the hydrohead is at least about 30 cm.
A cross-direction extensible elastic laminate produced by laminating at least one fibrous layer which has been previously necked and relaxed to at least one elastic layer and subsequently necking and heating said laminate.
A method for producing a laminated fabric having improved cross-directional extensibility, comprising the steps of:
A method for producing a laminated fabric having improved cross-directional extensibility, comprising the steps of:
A method for producing a laminated fabric having improved cross-directional extensibility, comprising the steps of:
Dependencies are inferred from the claim text.