Research on capacity enhancement technology of fine denier high strength staple fiber
This paper examined the feasibility of increasing the capacity of fine-denier high-strength staple fi-ber,as well as the process adjustment following the increase and fiber index.A single spinning position was used to study these topics,and an expansion test involving four spinning positions further confirmed the viability of both the optimized process and the capacity increase method chosen for the test.The results demonstrated that the ma-chine operating on the spinneret was stable and the time was relatively long when the B-enhanced spinneret with a diameter of 0.20 mm,a ratio of length to diameter of 2,and multiple screening of sea sand was used as the filter material.The spinning production was stable when the characteristic viscosity of the polyester melt fluctuated at a value less than 0.008 dL/g.The smooth falling and winding of the fiber helped to reduce the knot when the precursor's oil-water content was approximately(26±2)%.The inner and outer layers of the tow typical-ly have uniform cooling conditions when the central wind speed is maintained at 5.0 m/s.After the addition,the finished product index was able to effectively maintain its initial level,and there were no dyeing defects or varia-tions in color for the user.Because B spinneret's expansion capacity was roughly 10%greater than A spinneret's,it was possible to both increase output and lower conversion costs.
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