Method of making sizeless yarn

US6413452B1 · kind B1 · utility

Assignee

• AlliedSignal, Inc. · US

Inventors

• Robert Walter Medeiros · Colonial Heights, US
• Eugene James Corrigan · Midlothian, US
• Thomas Tam · Midlothian, US
• Elsaid Hassan Salem · Colonial Heights, US
• Jiunn-Yow Chen · Chester, US
• Michael James Reynolds · Richmond, US
• John Kenneth Yasnowsky · Richmond, US

Key dates

• Filing date: Jun 9, 2000
• Grant date: Jul 2, 2002
• Expiry date: Jan 10, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2976
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A yarn having good entanglement and good quality, preferably a multifilament polyamide yarn, a method for making the yarn, and a woven fabric made from the yarn wherein the yarn comprises the following properties: the yarn length per defect is greater than or equal to about 3000 meters per defect; the maximum skip length is less than or equal to about 120 millimeters; the ratio between yarn length per defect to maximum skip length is greater than or equal to about 50; the entanglements per meter times the average entanglement strength is greater than or equal to about 120; and the yarn can be woven sizeless. The yarn of the invention is useful in the sizeless weaving of fabric used in air bags.