Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1978-06-16
1981-06-23
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
128296, 428219, 428284, 428286, 428287, 428290, 428296, 428298, 428300, 428301, 428910, 428913, B32B 2714
Patent
active
042751055
ABSTRACT:
A stabilized absorbent rayon web which may be used alone or which may serve as outer plies for absorbent structures. The rayon web may be a spunbonded web or an air laid, wet laid or carded web of staple length or longer fibers, with substantial fiber orientation in a direction perpendicular to the plane of the web by virtue of the way in which the web is formed or by virtue of mechanical or hydraulic needling. The thermoplastic web is melted into the rayon web from the bottom surface thereof to a controlled penetration depth of from about 10% to about 40% and preferably from about 10% to about 25%. As a result, the cross over points of the rayon fibers are effectively stabilized from the bottom of the rayon web to the controlled penetration depth therein while the aesthetics of the upper surface of the rayon web are undisturbed. The thermoplastic web may be of any appropriate polymer and any structural form having an open area of at least about 40%. The stabilized rayon web demonstrates improved resistance to surface abrasion, improved tensile strength, improved wet bulk and resiliency and improved dimensional stability, both wet and dry. The bottom surface of the stabilized rayon web can be heat bonded to other webs without the use of additional thermoplastic material.
REFERENCES:
patent: 2862251 (1958-12-01), Kalwaites
patent: 3416526 (1968-12-01), Yeremian
patent: 3485706 (1969-12-01), Evans
patent: 3486168 (1968-12-01), Evans et al.
patent: 3507943 (1970-04-01), Such et al.
patent: 3837995 (1974-09-01), Floden
patent: 3916447 (1975-11-01), Thompson
patent: 3965906 (1976-06-01), Karami
patent: 4077410 (1978-03-01), Butterworth et al.
patent: 4159360 (1979-06-01), Kim
Boyd William J.
King Mary K.
Bell James J.
The Buckeye Cellulose Corporation
LandOfFree
Stabilized rayon web and structures made therefrom does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stabilized rayon web and structures made therefrom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilized rayon web and structures made therefrom will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2208032