Title:
POLYESTER THICK AND THIN COMBINED FILAMENT YARN
Document Type and Number:
Japanese Patent JP3449839
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing polyester thick and thin combined filament yarn excellent in puffy and firmness feeling and giving a natural grain tone and feeling of shade and shadow to cloth.
SOLUTION: This filament yarn is composed of a thick and thin filament A and a substantially uniform polyester filament B. The filament A is obtained by drawing in a draw ratio of 1.01-2.80 at ≤110°C using a highly oriented undrawn filament having the 0.015-0.070 of birefringence (Δn), heat treating under relaxation at 110-240°C in a lead in/lead out ratio: ≥5% using a contact type heater under the tension of 1-5g at the upper part of the heater and 1-8g of the tension at the lower part of the heater. Thus obtained polyester thick and thin filament A having the shrinkage; ≤6% in boiling water is combined with a substantiality uniform polyester filament having shrinkage; 7-25% in boiling water, in parallel or supplying A by-2-20% excess of B, by a turbulent flow treatment.
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Inventors:
Susumu Shikane
Application Number:
JP29090995A
Publication Date:
September 22, 2003
Filing Date:
November 09, 1995
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
D02G1/16; D02G1/18; D02J1/20; (IPC1-7): D02G1/18; D02G1/16; D02J1/20
Domestic Patent References:
| JP2160940A | ||||
| JP5209366A | ||||
| JP7207540A | ||||
| JP617333A | ||||
| JP4100933A | ||||
| JP57143515A |
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