Partially oriented nylon yarn and process

US4721650A · kind A · utility

Assignee

• Monsanto Company · US

Inventors

• Walter J. Nunning · Pensacola, US
• LeMoyne W. Plischke · Lillian, US
• Dror Selivansky · Haifa, IL
• John H. Southern · Pensacola, US
• Chester C. Wu · Raleigh, US

Key dates

• Filing date: Dec 17, 1986
• Grant date: Jan 26, 1988
• Expiry date: Dec 17, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2929
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A polyamide (preferably nylon 66) partially oriented feed yarn contains a small amount of branching agent and has an elongation between 45 and 150%. The feed yarn can be textured by the friction twist process to yield a textured yarn having crimp development similar to yarn textured by the much more expensive pin twist method.