Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1988-10-03
1990-03-06
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
15209R, 428283, 428286, 428903, B32B 1508, B32B 1512, B32B 1526, D04H 506
Patent
active
049065130
ABSTRACT:
Nonwoven wiper having improved absorbency characteristics and streak-free wiping properties having a laminate construction including a relatively high basis weight middle layer of meltblown thermoplastic microfibers with fibers added and, on one side, a lightweight layer of generally continuous filament thermoplastic fibers having a larger average diameter with a microfiber layer on the other side. These wipers are strong, fabric-like, and are useful for a wide variety of applications including industrial uses, food services, as well as many others. The continuous filament layers provide strength and low lint properties while the combination exhibits improved wiping characteristics. The laminate is preferably bonded by application of heat and pressure and the individual compounents are preferably treated with a surfactant. The preferred combination of a layer of meltblown polypropylene microfibers with fibers added having on one side a spunbonded polypropylene filament layer and on the other a microfiber layer is particularly effective as an all-purpose wiper.
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"Manufacture of Superfine Organic Fibers" V. A. Wente, E. L. Boone, and C. D. Fluharty, Naval Research Lab. Report No. 4364, May 25, 1954, U.S. Dept. of Commerce.
Kebbell Michael J.
Watts Hugo P.
Cannon James C.
Herrick William D.
Kimberly-Clark Corporation
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