Manufacturing process of W-section regenerated semi-optical fiber
The invention discloses a manufacturing process of W-section regenerated semi-gloss fibers, which comprises the following steps of: melting and extruding crystallized and dried regenerated semi-gloss PET (polyethylene terephthalate) slices by using a screw extruder to obtain a spinning melt; conveyi...
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Main Authors | , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.07.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a manufacturing process of W-section regenerated semi-gloss fibers, which comprises the following steps of: melting and extruding crystallized and dried regenerated semi-gloss PET (polyethylene terephthalate) slices by using a screw extruder to obtain a spinning melt; conveying the melt to a spinning manifold, metering the melt by a metering pump, pressing the melt into a spinning assembly for spinning, and performing post-heating, windless area cooling, circular blowing cooling, bundling and oiling, pre-interlacing, drafting and shaping, and winding and forming on formed primary tows to obtain W-section regenerated semi-gloss fibers; during spinning, a spinneret plate of a spinning assembly comprises spinneret orifices which are concentrically distributed on the inner ring and the outer ring, the section of the discharging end of each spinneret orifice is in a W shape composed of four leaves, and the included angle between every two connected leaves is 60 degrees. The surface of the m |
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Bibliography: | Application Number: CN202410549894 |