Nonwoven web laminate having relatively hydrophilic zone and rel

Details Nonwoven web laminate having relatively hydrophilic zone and rel Nonwoven web laminate having relatively hydrophilic zone and rel

1998-12-23

2000-10-31

Raimund, Christopher

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

442382, 442392, 442400, 442401, 428198, 427210, 427288, 4273855, 4273899, B32B 300, B05D 100

Patent

active

061399418

ABSTRACT:
A zone-treated spunbonded/meltblown/spunbonded (SMS) fabric laminate that combines the separate functions of the topsheet and cuff in one component of an absorbent article. The SMS fabric laminate is treated with surfactant to form a hydrophilic zone. The untreated areas of the SMS fabric laminate remain hydrophobic and perform the function of the cuff. Alternatively, a spunbonded/spunbonded fabric laminate is formed and then zone-treated with surfactant. The fabric laminate is treated with surfactant on both sides using a foam applicator. The application of foam produces sharp transitions between the hydrophilic and hydrophobic zones. After foam application, the fabric laminate is dried and slitted. The treated and slitted material is then wound and sold in roll form for converting into the finished disposable diaper.

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Letter dated Mar. 13, 1991 from Fiberweb North America, Inc. (predecessor to BBA Nonwovens Simpsonville, Inc.) to Weyerhaeuser Corporation enclosing Celestra Unicorn spunbond zone coated product sample and specification.

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