Innerduct

摘要

A seamless and integrated textile innerduct having: a warp composed of polyester monofilament yarns and a weft composed of polyester multifilament yarns, wherein the warp has 70-85 ends per inch, the weft has 14-25 ends per inch, the warp and weft are integrated seamlessly to form an elongated enclosure having breaking strength of at least 1000 pounds, a vertical retraction rate of less than 3% at 150° C. for a duration of one hour, a longitudinal shrinkage rate of less than 3% at −80° C.; a pulling strip is placed inside the enclosure; the pulling strip is made of polyester multifilament yarns; and the inner duct is flexible and stretchable longitudinally.

主权项

1. A seamless and integrated textile innerduct comprising
a warp comprised of polyester monofilament yarns; and a weft comprised of polyester multifilament yarns; wherein the warp has 70-85 ends per inch, the weft has 14-25 ends per inch, the warp and weft are integrated seamlessly to form an elongated enclosure; the elongated enclosure has a breaking strength of at least 1000 pounds, a vertical retraction rate of less than 3% at 150° C. for a duration of one hour, a longitudinal shrinkage rate of less than 3% at −80° C.; a pulling strip is placed inside the enclosure; the pulling strip is made of polyester multifilament yarns; and the inner duct is flexible and stretchable longitudinally.