Spinneret plate for producing profiled hollow delustering fiber
A technology of matting fiber and spinneret, which is used in hollow filament manufacturing, fiber processing, fiber chemical characteristics, etc., can solve the problems of low fiber surface roughness, easy deformation, moisture absorption and perspiration effect, and poor thermal insulation effect. , to achieve the effect of weakening the reflective performance, increasing the diffuse reflection, and avoiding fiber cracking
Active Publication Date: 2020-06-05
JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
At present, the spinnerets for the production of special-shaped hollow fibers in the market are mainly annular hollow, trilobal, C-shaped or eccentric hollow spinnerets, and the cross-sections of the special-shaped hollow fibers produced are mainly hollow circular, hollow trilobal, etc. The surface roughness of these fibers is not high, the matting effect is not very ideal, and under the action of external force stretching, bending and extrusion, the cross section is easily deformed into a double-layer flat belt shape, and its moisture absorption and perspiration effect and heat preservation effect are thus deteriorated.
Method used
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Embodiment
[0032] The full-dull polyester melt with a titanium dioxide content of 3.1wt% is transported to the spinning box at 290°C, and spun through the spinneret of the present invention, and then cooled by surrounding air, oiled on the oil nozzle, drawn by hot rollers, and networked. Machine adds network and winding machine winding, obtains the full-dull polyester fiber of this embodiment. Utilize the industrial microscope CX40M SDPTOP to photograph the full-dull polyester fiber of this embodiment, under 50 times magnification, the cross-sectional shape of the full-dull polyester fiber of this embodiment is as follows Figure 5 shown. Depend on Figure 5 It can be seen that the full-dull polyester fiber spun by the spinneret of the present invention has an eight-lobe hollow structure, and the structure of multiple grooves on its surface can greatly enhance the diffuse reflection of light, improve its matting effect, and the shape retention of the fiber is relatively high. .
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Abstract
The invention discloses a spinneret plate for producing a profiled hollow delustering fiber. The spinneret plate comprises a spinneret plate body and a plurality of spinneret holes, wherein flow guidegrooves which are evenly distributed in a concentric circle around the axis of the spinneret plate body as a circle center are arranged in a feeding surface of the spinneret plate body; the spinneretholes are evenly arranged along the flow guide grooves and penetrate through the spinneret plate body; each spinneret hole consists of a guide hole and a microhole; each guide hole is in a shape of acylinder with a conical bottom; each microhole is connected with the lower end of the corresponding guide hole and communicates with the lower end of the corresponding guide hole; each microhole is formed by arranging four profiled holes along the circumference; each profiled hole consists of an arc-shaped hole protruding outwards and two rectangular holes which are connected to one side, protruding outwards, of the arc-shaped hole, communicate with the arc-shaped hole and are in radial distribution; and the radial direction of each rectangular hole points to the radius direction of the corresponding microhole. By using the spinneret plate disclosed by the invention, the profiled hollow delustering fiber which is high in surface irregularity, good in delustering effect and good in sectionshape retention can be spun out.
Description
technical field [0001] The invention relates to the field of chemical fiber production, in particular to a spinneret for producing special-shaped hollow extinction fibers. Background technique [0002] The spinneret is a commonly used product in the textile and chemical fiber industry. The spinneret includes a feed surface and a discharge surface. The feed surface is provided with a feed hole, and the discharge surface is provided with a discharge hole. The function of the spinneret is to transform the viscous polymer melt or solution into a fine flow with a specific cross-section through the micropores, and solidify it through a coagulation medium such as air or a coagulation bath to form filaments, that is, from the feed It enters through the hole and exits through the discharge hole. Ordinary spinnerets have circular outlets, and non-circular ones are called special-shaped spinnerets. Special-shaped hollow fiber is a chemical fiber with special-shaped hollow cross-secti...
Claims
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IPC IPC(8): D01D5/253D01D5/24
CPCD01D5/24D01D5/253
Inventor 印成徐亚光胡永超徐德衔胡文龙张艳
Owner JIANGSU HENGKE ADVANCED MATERIALS CO LTD