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One-spindle three-spinning viscose filament semicontinuous centrifugal spinning process and its spinning machine

A viscose filament, centrifugal spinning technology, applied in viscose-made rayon, wet spinning, textiles and papermaking, etc. The problem of uneven number and easy drift of filaments can improve the spinnability of spinning, the number of single filaments is uniform, and the equipment maintenance is convenient.

Active Publication Date: 2006-08-09
YIBIN GRACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The R535A(B) type spinning machine implements one spindle and one nozzle to produce one bundle of filaments, which has the disadvantages of low spinning speed, large floor space and high investment
2. One multi-filament spinning machine has multiple nozzles per spindle, and the distance between the nozzles in the acid bath is short (80-125MM), and the filaments are prone to drift in the acid bath, resulting in the number of filaments per bundle. Uneven; the spinning speed is also low, generally lower than 85 m / min
Four, the depth of the acid bath of the existing deep bath method spinning machine is generally 500MM, which limits the length (bath bath length) of the filament in the acid bath, and the reaction of the viscose glue and the acid bath is insufficient under the condition of high spinning speed
The silk strips formed by insufficient reaction of viscose are wound into silk cakes after deacidification, and finished products after post-processing, whose quality is not stable

Method used

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  • One-spindle three-spinning viscose filament semicontinuous centrifugal spinning process and its spinning machine
  • One-spindle three-spinning viscose filament semicontinuous centrifugal spinning process and its spinning machine
  • One-spindle three-spinning viscose filament semicontinuous centrifugal spinning process and its spinning machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Process: (1) Viscose metering: Viscose is metered by a gear metering pump, and each nozzle corresponds to an independent metering unit, that is, a pair of metering gears in the metering pump.

[0033] (2) Viscose filtration: filter with a candle filter.

[0034] (3) Solidification and decomposition reaction of viscose and acid bath: forming in tube, acid bath composition: sulfuric acid content 125-135 g / L, sodium sulfate content 260-270 g / L, zinc sulfate content 10-11 g / L . The acid bath temperature is 51-52°C. The inner diameter of the forming tube is φ6±0.3 mm, and the length of the forming tube is 650±1.0 mm.

[0035] (4) Deacidification of silk strands: Rinse the middle part of the acid removal roller with soft water to remove acid and salt in the strands.

[0036] (5) Winding and forming of silk cakes: three bundles of silk strips per ingot respectively pass through the lifting funnel and the rotating centrifugal cylinder to form three silk cakes.

[0037] (6) ...

Embodiment 2

[0040] Process: (1) Viscose metering: Viscose is metered by a gear metering pump, and each nozzle corresponds to an independent metering unit, that is, a pair of metering gears in the metering pump.

[0041] (2) Viscose filtration: filter with a candle filter.

[0042] (3) Coagulation and decomposition reaction of viscose and acid bath: forming in tube, acid bath composition: sulfuric acid content 127-137 g / L, sodium sulfate content 265-275 g / L, zinc sulfate content 11-12 g / L . The acid bath temperature is 52-53°C. The inner diameter of the forming tube is φ6.5±0.3 mm, and the length of the forming tube is 750±1.0 mm.

[0043] (4) Deacidification of silk strands: Rinse the middle part of the acid removal roller with soft water to remove acid and salt in the strands.

[0044] (5) Winding and forming of silk cakes: three bundles of silk strips per ingot respectively pass through the lifting funnel and the rotating centrifugal cylinder to form three silk cakes.

[0045] (6) S...

Embodiment 3

[0048] Process: (1) Viscose metering: Viscose is metered by a gear metering pump, and each nozzle corresponds to an independent metering unit, that is, a pair of metering gears in the metering pump.

[0049] (2) Viscose filtration: filter with a candle filter.

[0050] (3) Solidification and decomposition reaction of viscose and acid bath: forming in tube, acid bath composition: sulfuric acid content 130-140 g / l, sodium sulfate content 265-275 g / l, zinc sulfate content 11-12 g / l . The acid bath temperature is 52-53°C. The inner diameter of the forming tube is φ7.0±0.3 mm, and the length of the forming tube is 900±1.0 mm.

[0051] (4) Deacidification of silk strands: Rinse the middle part of the acid removal roller with soft water to remove acid and salt in the strands.

[0052] (5) Winding and forming of silk cakes: three bundles of silk strips per ingot respectively pass through the lifting funnel and the rotating centrifugal cylinder to form three silk cakes.

[0053] (6...

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Abstract

This invention discloses a semi-continuous centrifugal filature technology and a spinning machine for producing viscose filaments, which applies a viscose filament semi-continuous centrifugal spinning technology for shaping one-ingot three-silks in a tube including that the solidification and decomposition of the glue and acid bath react in the way of shaping in the tube, in which, there are three viscose measure outlets for each ingot, three sets of candle filters, three nozzles, three shaping tubes and three centrifugal jars, which applies the new technology and new type of glu supply and winding device to realize the filament production efficiency 2-3 times of that of the original R535A(B) type.

Description

technical field [0001] The invention relates to the field of viscose filament production, in particular to a semi-continuous centrifugal spinning process and spinning machine for one-spindle three-filament spun viscose filament. Background technique [0002] The existing viscose filament semi-continuous centrifugal spinning process adopts the deep bath method for spinning, and its spinning equipment R535A (B) type spinning machine and a spindle multifilament spinning machine all adopt the deep bath method for coagulation and forming. The following defects: [0003] 1. The R535A(B) type spinning machine implements one spindle and one nozzle to produce one bundle of filaments, which has the disadvantages of low spinning speed, large floor space and high investment. 2. One multi-filament spinning machine has multiple nozzles per spindle, and the distance between the nozzles in the acid bath is short (80-125MM), and the filaments are prone to drift in the acid bath, resulting i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/06D01D13/00D01F2/06
Inventor 冯涛谢增颖章胜宗廖周荣
Owner YIBIN GRACE
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