Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1988-10-21
1991-10-15
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156290, 428171, 428296, 428288, 604366, B32B 300
Patent
active
050573578
ABSTRACT:
A soft, nonwoven, fibrous coverstock having opposite faces and having a basis weight in a range of from about 5 grams per square yard to about 120 grams per square yard, machine direction tensile strength in a range of from about 100 grams per inch to about 18,000 grams per inch, cross direction tensile strength in a range of from about 100 grams per inch to about 18,000 grams per inch, cross direction neck-in in a range of about 2% to about 20%, and softness in a range of about 1.8 PSU to about 2.2 PSU. The soft coverstock is produced by a method of passing a fibrous web of thermally bondable fibers through a pair of heated calendar nips to engage each opposite face of the web successively with a patterned roller having raised, discontinuous lands and for fusing portions of the web in a pattern of bond areas.
REFERENCES:
patent: 3542634 (1970-11-01), Such et al.
patent: 4041203 (1977-08-01), Brock et al.
patent: 4088726 (1978-05-01), Cumbers
patent: 4306929 (1981-12-01), Menikheim et al.
patent: 4333979 (1982-06-01), Sciaraffa et al.
patent: 4493868 (1985-01-01), Meitner
patent: 4902366 (1990-02-01), Bader
Bell James J.
Fiberweb North America, Inc.
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