Filament bundle fiber chemical modification production device

A production device and a technology for chemical modification, applied in the field of functional fiber preparation, can solve the problems of unsuitability for chemical modification of filament bundles, poor uniformity, etc., achieve good product uniformity, improve production efficiency, and realize continuous industrial production. Effect

Inactive Publication Date: 2013-03-06
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these processes are all based on loose fiber as raw material, so that it first undergoes chemical reaction in the same reactor, and then it is fully washed, and after taking it out, it is dried in a centrifuge and dried in a dryer to obtain the finished fiber, which belongs to intermittent. The production process, the uniformity between batches of products is poor, and it is only suitable for the processing of short fibers, not suitable for chemical modification of long filament bundles

Method used

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  • Filament bundle fiber chemical modification production device
  • Filament bundle fiber chemical modification production device
  • Filament bundle fiber chemical modification production device

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specific Embodiment

[0019] The superabsorbent fiber is prepared by using the production device of the present invention.

[0020] The long filament bundles of polyacrylonitrile semi-finished fibers are used as raw filaments, and after being sorted by the tow finishing machine 1, the filament bundle fibers with evenly distributed tension enter the hydrolysis reactor 2, and the filament bundles to be hydrolyzed reciprocate in the tow The 21 upper godet rollers 221 and the 20 lower godet rollers 221' of the frame 22 are reciprocally wound up and down to prolong the reaction time reasonably; after the temperature in the hydrolysis reactor 2 is 90-95°C, the NaOH concentration is 150410g / After reacting in the bath liquid of L for 50-60min, then pass through the first squeezer 3, the first washing tank 4, the second squeezing machine 5, the pickling tank 6, the third squeezing machine 7, the second washing tank 8, the After four squeezers 9, dryers 10, cutters 11 and balers 12, the product high water-a...

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Abstract

The invention discloses a filament bundle fiber chemical modification production device which sequentially comprises a bundle finishing machine, a hydrolysis reactor, a first presser, a first rinsing trough, a second presser, a descaling bath, a third presser, a second rinsing trough, a fourth presser, a dryer and a packer. The filament bundle fiber chemical modification production device is characterized in that the hydrolysis reactor comprises a hydrolyss tank and a filament reciprocating frame placed in the hydrolysis tank, wherein the filament reciprocating frame is of a rectangular frame structure and comprises an upper row of yarn guide rollers and a lower row of yarn guide rollers, the quantity of each row of yarn guide rollers is at least 10, and the quantity of the upper row of yarn guide rollers is 1 more than that of the lower row of yarn guide rollers; each presser mainly comprises a front pressure roller pair and a rear pressure roller pair and a middle yarn guide roller; and the second presser, the third presser and the fourth presser are same as the first presser in structures.

Description

technical field [0001] The invention relates to the preparation technology of functional fibers, in particular to a production device for chemical modification of filament tow fibers, which is mainly used for chemical reactions such as grafting, crosslinking and functional group modification on filament tow fiber macromolecules Continuous production. Background technique [0002] Carrying out various chemical reactions such as grafting, crosslinking and functional group modification on fiber macromolecules to make them have new functions is one of the important means to develop differentiated fibers or functional fibers, and has been widely used, for example, The dyeing of pure wool bulk fiber, the graft modification of viscose staple fiber and styrene, etc. have all achieved success. However, these processes all use loose fibers as raw materials, so that they undergo chemical reactions in the same reactor, and then they are fully washed, and after they are taken out, they ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B21/00D06B23/20
Inventor 安树林肖长发骆霁月
Owner TIANJIN POLYTECHNIC UNIV
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