CN201678771U

CN201678771U - Spinneret for producing wide and flat viscose filament yarns

Info

Publication number: CN201678771U
Application number: CN2010202112009U
Authority: CN
Inventors: 邓传东; 韦运起
Original assignee: Yibin Grace Group Co Ltd; Yibin Haisite Fiber Co Ltd
Current assignee: Yibin Grace Group Co Ltd; Yibin Haisite Fiber Co Ltd
Priority date: 2010-06-01
Filing date: 2010-06-01
Publication date: 2010-12-22
Anticipated expiration: 2020-06-01

Abstract

The utility model relates to a spinneret for producing wide and flat viscose filaments. Spinneret orifices arranged on the spinneret are profile spinneret orifices, each profile spinneret orifice is formed by that two circular arcs are connected through two symmetrical and parallel straight lines and shaped like a dumbbell, and all the spinneret orifices are arranged in parallel and in a crossed way. The utility model can improve the phenomena that stress is centralized at the ends of the viscose filaments, reduce hairy and broken filaments, improve the profile degree, the glossiness and the dyeing leveling of the flat filaments and complements the disadvantages that the spinneret plate of the prior art can not produce wide and flat filaments with high degree of profile.

Description

A kind of spinning head of producing big flat viscose filament yarn

Technical field

The utility model relates to the spinning head that a kind of spinning is used, and more particularly, the utility model relates to a kind of spinning head of producing big flat viscose filament yarn.

Background technology

The spinnerets hole shape of the flat viscose filament yarn of tradition is mainly rectangle, when adopting the rectangle spinnerets, the normal stress inequality of hole wall because fluid is flowed through, therefore the extrusion swelling of spin fluid is also inhomogeneous, easily cause fiber end stress concentration phenomenon, can't guarantee to spin fiber end compound with regular structure, level and smooth, thereby fiber is easy to generate lousiness and broken end in spinning and drawing process, the fiber degree of profile is generally lower, and because the difference of strand end and middle part crystalline rate causes the stock-dye inequality easily.

The utility model content

The utility model is intended to solve the defective that rectangle hole shape spinnerets easily causes fiber end stress to concentrate, make end construction comparatively regular, improve the stress concentration phenomenon of fiber end, reduce lousiness and broken end, improve degree of profile, glossiness and the dyeing uniformity of pancake fiber, remedied the deficiency that the spinnerets of prior art can't be produced flat greatly, high degree of profile pancake fiber.

To achieve these goals, concrete technical scheme is as follows:

A kind of spinning head of producing big flat viscose filament yarn is characterized in that: the spinneret orifice on the described spinning head is special-shaped spinneret orifice, and described special-shaped spinneret orifice upper and lower end is a parallel lines, and left and right end is a circular arc.

Intersect between each spinneret orifice on the above-mentioned spinning head and be arranged in parallel.

The intermediate altitude H of above-mentioned spinneret orifice is more than or equal to 0.02mm; The spinneret orifice length L is more than or equal to 0.3mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is more than or equal to 10; Described spinneret orifice two ends arc radius is more than or equal to 0.03mm.

The intermediate altitude H of above-mentioned spinneret orifice is 0.02-0.08mm; The spinneret orifice length L is 0.3-1.0mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 10-15; Described spinneret orifice two ends arc radius is 0.03-0.08mm.

The useful technique effect that the utility model brings: improve fiber end stress concentration phenomenon, reduce lousiness and broken end, improve degree of profile, glossiness and the dyeing uniformity of pancake fiber, remedied the deficiency that the spinnerets of prior art can't be produced flat greatly, high degree of profile pancake fiber.

Description of drawings

Fig. 1 is the distribution map of spinneret orifice on the utility model spinning head.

Fig. 2 is the pass schematic diagram of the utility model spinneret orifice.

Fig. 3 is the pass schematic diagram of the utility model spinneret orifice.

The specific embodiment

Embodiment 1

Spinneret orifice on the spinning head is special-shaped spinneret orifice, and described special-shaped spinneret orifice upper and lower end is a parallel lines, and left and right end is a circular arc, intersects between each spinneret orifice to be arranged in parallel.

The intermediate altitude H of spinneret orifice is 0.02mm; The spinneret orifice length L is 0.3mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 15; Described spinneret orifice two ends arc radius is 0.03mm; Spinneret orifice is a dumb-bell shape.

Embodiment 2

The intermediate altitude H of spinneret orifice is 0.08mm; The spinneret orifice length L is 1.0mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 12.5; Described spinneret orifice two ends arc radius is 0.08mm; Spinneret orifice is a dumb-bell shape.

Embodiment 3

The intermediate altitude H of spinneret orifice is 0.05mm; The spinneret orifice length L is 0.5mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 10; Described spinneret orifice two ends arc radius is 0.05mm; Spinneret orifice is a dumb-bell shape.

Embodiment 4

The intermediate altitude H of spinneret orifice is 0.08mm; The spinneret orifice length L is 0.8mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 10; Described spinneret orifice two ends arc radius is 0.04mm, and arc diameter equals the intermediate altitude H of spinneret orifice; Spinneret orifice is a capsule shape.

Embodiment 5

The intermediate altitude H of spinneret orifice is 0.1mm; The spinneret orifice length L is 1.5mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 15; Described spinneret orifice two ends arc radius is 0.03mm, and arc diameter is less than the intermediate altitude H of spinneret orifice; Spinneret orifice is a capsule shape.

Claims

1. spinning head of producing big flat viscose filament yarn, it is characterized in that: the spinneret orifice on the described spinning head is special-shaped spinneret orifice, and described special-shaped spinneret orifice upper and lower end is a parallel lines, and left and right end is a circular arc.

2. a kind of spinning head of producing big flat viscose filament yarn according to claim 1 is characterized in that: intersect between each spinneret orifice on the described spinning head and be arranged in parallel.

3. a kind of spinning head of producing big flat viscose filament yarn according to claim 1 is characterized in that: the intermediate altitude H of described spinneret orifice is more than or equal to 0.02mm; The spinneret orifice length L is more than or equal to 0.3mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is more than or equal to 10; Described spinneret orifice two ends arc radius is more than or equal to 0.03mm.

4. a kind of spinning head of producing big flat viscose filament yarn according to claim 1 is characterized in that: the intermediate altitude H of described spinneret orifice is 0.02-0.08mm; The spinneret orifice length L is 0.3-1.0mm; The ratio of described spinneret orifice length L and spinneret orifice intermediate altitude H is 10-15; Described spinneret orifice two ends arc radius is 0.03-0.08mm.