Process for producing very fine denier synthetic fibers

US4400339A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Ulrich Reinehr · Dormagen, DE
• Toni Herbertz · Dormagen, DE
• Hermann-Josef Jungverdorben · Dormagen, DE
• Joachim Dross · Dormagen, DE

Key dates

• Filing date: Dec 4, 1980
• Grant date: Aug 23, 1983
• Expiry date: Dec 4, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2978
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Dry-spun synthetic fibers and filaments having an individual as-spun denier of 3 dtex are obtained by dry-spinning a viscosity-stable spinning solution with a draft of at least 20.