Single layer absorbent cable wrap
AssigneeNordlys S.A.
InventorsJacques Everaere, Michael Delattre, Christopher Wren
Life of this patent
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Abstract
A water-absorbent wrap for power cables, communication cables, and like cables includes a calendered, single layer nonwoven formed of a carded mixture of super water-absorbent fibers and cohesive carrier fibers. The calendered nonwoven is characterized by a thickness of not more than 2.0 mm, a basis weight of not more than 200 gsm, a swelling height of at least 3 mm, a swelling speed of at least 1 mm/1st min., and a tensile strength of at least 20 N/5 cm.
Claims18
A water-absorbent wrap for power cables, communication cables, and like cables, comprising:
- a calendered single layer nonwoven formed of a carded mixture of water-absorbent fibers and cohesive carrier fibers, said calendered nonwoven being characterized by:
- (i) a thickness of not more than 2.0 mm,
- (ii) a basis weight of not more than 200 gsm,
- (iii) a swelling height of at least 3 mm and a swelling speed of at least 1 mm/1st min.,
- (iv) a tensile strength of at least 20 N/5 cm;
- and
- said carrier fibers being characterized by:
- (i) at least 10 crimps per cm., and
- (ii) a denier not exceeding 6.
A water-absorbent wrap for power cables, communication cables, and like cables, comprising a composite laminate of
- (A) a calendered single layer nonwoven of a carded mixture of water-absorbent fibers and cohesive carrier fibers, and
- (B) a substrate selected from the group consisting of paper, knits, wovens, nonwovens, films and combinations thereof;
- said composite laminate being characterized by:
- (i) a thickness of not more than 3.0 mm,
- (ii) a basis weight of not more than 200 gsm,
- (iii) a swelling height of at least 3 mm and a swelling speed of at least 1 mm/1st min.,
- (iv) a tensile strength of at least 120 N/5 cm;
- and
- said carrier fibers being characterized by:
- (i) at least 10 crimps per cm., and
- (ii) a denier not exceeding 6.
A water-absorbent wrap for power cables, communication cables, and like cables, comprising a calendered composite laminate having:
- (A) an uncalendered single layer nonwoven formed of a carded mixture of water-absorbent fibers and cohesive carrier fibers, and
- (B) a substrate selected from the group consisting of paper, knits, wovens, nonwovens, films and combinations thereof;
- said calendered composite laminate being characterized by:
- (i) a thickness of not more than 3.0 mm,
- (ii) a basis weight of not more than 200 gsm,
- (iii) a swelling height of at least 3 mm and a swelling speed of at least 1 mm/1st min.
- (iv) a tensile strength of at least 120 N/5 cm;
- and
- said carrier fibers being characterized by:
- (i) at least 10 crimps per cm., and
- (ii) a denier not exceeding 6.
Dependencies are inferred from the claim text.