Spinning technology applied to semi-continuous high-speed spinning machine with spinning roller arranged horizontally

A technology of high-speed spinning and spinning technology, applied in the field of spinning technology, can solve the problems of lower product quality, lower production efficiency, and low filament strength, so as to avoid mutual entanglement, increase production efficiency, and ensure spinning quality Effect

Inactive Publication Date: 2013-09-11
YIBIN HIEST FIBER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Disadvantages: low spinning speed, high post-processing costs, and increased production costs
[0012] Disadvantages: Since the silk sliver is washed and dried immediately, the strength of the sliver is low, the whiteness is low, the sliver is rough, and the quality is not as good as that of the semi-continuous spinning machine; in order to increase the sizing of the silk sliver, the sizing needs to be removed when the embroidery thread is dyed. Increase the production cost of downstream products; high quality requirements for raw materials (viscose)
[0020] 1. The above structure limits the length of the roller. The time for the viscose filament to walk on the roller is short, and the forming time of the viscose filament is short. If the spinning speed is to be increased, the reaction time of the viscose filament will inevitably be insufficient and the product quality will be reduced. , so the efficiency of the traditional semi-continuous spinning machine is reduced;
[0021] 2. In order to improve efficiency, multiple filaments are usually processed at the same time, but when multiple viscose filaments are wound on the existing spinning roller, they are easy to twist, causing the viscose filaments to break and affecting the viscose filaments. product quality;
[0023] 4. All the spinning rollers are fixed at one end, which will inevitably require an extremely complex transmission mechanism to drive the rotation of the spinning rollers, which will also lead to an increase in the failure rate, and when changing the type of silk yarn and changing the rotation speed, it is necessary to stop the machine. Then replace the gears in the transmission system, which reduces the production efficiency and increases the production cost
[0031] To sum up, the existing process control cannot meet the requirements of increasing the spinning speed after the horizontal setting of the spinning roll, nor can it meet the technical requirements of the variety or specification changes brought about by the single control of the horizontal spinning roll

Method used

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  • Spinning technology applied to semi-continuous high-speed spinning machine with spinning roller arranged horizontally
  • Spinning technology applied to semi-continuous high-speed spinning machine with spinning roller arranged horizontally
  • Spinning technology applied to semi-continuous high-speed spinning machine with spinning roller arranged horizontally

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] A spinning process suitable for a semi-continuous high-speed spinning machine with spinning rollers arranged horizontally. The process includes viscose metering and glue supply, pre-spinning filtration, filament forming, spinning and winding,

[0091] A Viscose metering and glue supply

[0092] In the glue metering and glue supply process, the gauge pressure of the glue pipe is 0.1MPa;

[0093] B Filtration before spinning

[0094] In the pre-spinning filtration process, viscose maturity NH 4 The Cl value is controlled at 7.0ml, the falling ball viscosity is 30 mPa·s, the viscose methyl fiber content is 8.0%, the viscose contains 6.0% alkali, 500ml viscose bubbles are ≤25, the viscose surface tension is 50dyne / cm, and the viscose particles are less than 10μm ≤100 pieces / ml;

[0095] C filament forming

[0096] In the filament forming process, the composition of the acid bath is: sulfuric acid concentration 135g / L, sodium sulfate concentration 230g / L, zinc sulfate co...

Embodiment 2

[0104] A spinning process suitable for a semi-continuous high-speed spinning machine with spinning rollers arranged horizontally. The process includes viscose metering and glue supply, pre-spinning filtration, filament forming, spinning and winding,

[0105] A Viscose metering and glue supply

[0106] In the glue metering and glue supply process, the gauge pressure of the glue pipe is 0.3MPa;

[0107] B Filtration before spinning

[0108] In the pre-spinning filtration process, viscose maturity NH 4 The Cl value is controlled at 13.0ml, the falling ball viscosity is 35mPa·s, the viscose methyl fiber content is 8.1%, the viscose contains 6.1% alkali, 500ml viscose bubbles ≤ 25, viscose surface tension 55dyne / cm, viscose particles below 10μm ≤ 100 pieces / ml;

[0109] C filament forming

[0110] In the filament forming process, the composition of the acid bath is: sulfuric acid concentration 140g / L, sodium sulfate concentration 240g / L, zinc sulfate concentration 11.0g / L, acid...

Embodiment 3

[0118] A spinning process suitable for a semi-continuous high-speed spinning machine with spinning rollers arranged horizontally. The process includes viscose metering and glue supply, pre-spinning filtration, filament forming, spinning and winding,

[0119] A Viscose metering and glue supply

[0120] In the glue metering and glue supply process, the gauge pressure of the glue pipe is 0.5MPa;

[0121] B Filtration before spinning

[0122] In the pre-spinning filtration process, viscose maturity NH 4 Cl value is controlled at 10.0ml, falling ball viscosity is 38mPa·s, viscose methyl fiber content is 8.2%, viscose contains 5.8% alkali, 500ml viscose bubbles are ≤25, viscose surface tension is 53dyne / cm, viscose particles below 10μm are ≤ 100 pieces / ml;

[0123] C filament forming

[0124] In the filament forming process, the composition of the acid bath is: sulfuric acid concentration 145g / L, sodium sulfate concentration 245g / L, zinc sulfate concentration 12.5g / L, acid bath ...

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Abstract

The invention relates to a spinning technology applied to a semi-continuous high-speed spinning machine with a spinning roller arranged horizontally. The spinning technology comprises glue measurement and supply, pre-spinning filtering, yarn strip forming, spinning and winding. The spinning technology aims at the specific semi-continuous high-speed spinning machine with the spinning roller arranged horizontally, under the mutual action of all processes and control of technological parameters, the spinning speed is ensured to be improved, independent walking of single yarn strips can be achieved, operations are simplified, the problems of doubling, burrs, breakage and the like are solved, the yarn strips are fully reacted and good in uniformity, the product quality is guaranteed, meanwhile, operations of workers are facilitated, and equipment maintenance is easy, overhaul costs are low, so that product costs are greatly reduced while the production efficiency is effectively improved.

Description

technical field [0001] The invention relates to a spinning process, in particular to a spinning process suitable for a semi-continuous high-speed spinning machine with spinning rollers arranged horizontally, and belongs to the technical field of viscose filament semi-continuous spinning production. Background technique [0002] Pure methyl cellulose is extracted from cellulose raw material, called pulp. Treat with caustic soda and carbon disulfide to obtain orange-yellow cellulose xanthate sodium, and then dissolve it in dilute sodium hydroxide solution to become viscous spinning stock solution, called viscose. After the viscose is filtered, matured and defoamed, it is wet-spun, and the coagulation bath is composed of sulfuric acid, sodium sulfate and zinc sulfate. Sodium cellulose xanthate in the viscose reacts with sulfuric acid in the coagulation bath to decompose, and the cellulose is regenerated and precipitated. The obtained cellulose fiber becomes viscose fiber after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/06D01F2/06
Inventor 李蓉玲唐金钟夏长林邵方琼范贤珍
Owner YIBIN HIEST FIBER
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