CN1556268A

CN1556268A - Method and device for improving fiber yarn forming performance

Info

Publication number: CN1556268A
Application number: CNA2003101116990A
Authority: CN
Inventors: 徐卫林; 张尚勇; 崔卫纲; 李文斌
Original assignee: Wuhan University of Science and Engineering WUSE
Current assignee: Wuhan University of Science and Engineering WUSE
Priority date: 2003-12-31
Filing date: 2003-12-31
Publication date: 2004-12-22

Abstract

A method for improving the spinning performance of fibres features that the fibres are modified by a thermal shape-fixating equipment in their spinning procedure. Said thermal shape-fixating equipment is composed of internal tube and external tube. When the fibres pass through the internal tube, they are acted by high-temp steam to make their macro-molecular chains flexible and extended.

Description

A kind of method and device that improves fiber resultant yarn performance

Technical field

The present invention relates to a kind of method, device and the relevant technology that can fundamentally improve textile fabric resultant yarn performance, method belongs to the weaving process technology.

Background technology

Spinning process has two kinds, and a kind of is there being the fiber (tens to the hundreds of millimeter) of certain-length to assemble thread like material, so that further processing.Links such as this spinning process will and close through combing usually, drawing-off, twisting winding.Another kind is the direct resultant yarn of chemical fibre spinning.Drawing-off is by the roller that two pairs of speed ratios there are differences the fibre bundle yarn to be taken out long drawing-down in preceding a kind of spinning process, with the yarn of the thinner even thickness of spinning.But in the draw zone of spinning, fibre bundle yarn surface is not subjected to peripheral constraint, and the part slow speed fiber bears the extruding traction action of middle front part faster fibres, adds the elasticity of fiber, and the head end of these slow speed fibers sticks up easily from yarn; From roller when twisting output, stick up fiber head from yarn and be subjected to stretch out yarn core and become the forward direction filoplume less than pressure.At twist triangle zone, add under the effect of torsional moment from the flat fiber strip of front roller output and to be twisted as circle, at this moment the ectonexine fiber is because dynamic pressure difference and inside and outside the transfer constantly taken place; When fiber forwarded the top layer to, owing to self rigidity effect, if there is not enough big torsional interaction to make it bend towards yarn core again, also can expose in yam surface became filoplume.In addition, because thick long stapled elasticity and rigidity are big, fiber is not concentrated the thickness evenness fault that yet can cause yarn at the speed change point at preceding jaw place.The not even filoplume of yarn evenness not only influences the presentation quality and the weaving processing wearability of fabric, and influences carrying out smoothly of weaving back processing.Weave on looms when making as warp thread, the filoplume of adjacent yarn easily forms and is entangled with, and this makes warp thread not pass through stop over sheet, heald eye and dent smoothly, easily causes broken end; Also can cause Warp opening unclear on loom, particularly filoplume be more outstanding to the influence of the influence comparison fly-shuttle loom of shuttleless loom generation.In addition, owing to stretch out the interior easier dyeing of fiber of the external hairiness ratio yarn body of yarn, thus cause the aberration behind the piece dyeing finishing.At present the main method that adopts of cotton mill is the control workshop moisture temperature and adds lubricant (as with crude oil etc.) in fiber, and these method effects are limited, easy-to-rust equipment, and can not fundamentally improve the submissive performance of fibre bundle yarn interior molecules chain.

Summary of the invention

At above-mentioned existing problems, the object of the present invention is to provide a kind of method and device and technology of improving the fiber spinning performance, its technical scheme is: a kind of method of improving the fiber spinning performance, in fibre bundle yarn resultant yarn process, on spinning equipment, install the HEAT SETTING device additional, yarn shape textile fiber tow is carried out online high temperature steam state media modification to be handled, its technical process is as follows: the fibre bundle yarn passes the interior pipe that is installed at HEAT SETTING device on the spinning equipment through conducting bar roller, the import of HEAT SETTING pipe connects high temperature steam state media generator, high temperature steam state media enters in the interlayer of being made up of the interior pipe and the outer tube of HEAT SETTING device, pass simultaneously aperture on the inner tubal wall enter in pipe and the fibre bundle yarn of pipe in passing soften reaches submissive processing, the HEAT SETTING device is made of interior pipe and outer tube, interior pipe is located on the axis of outer tube, and interior pipe and the sealed at both ends of outer tube are connected.Form interlayer between interior pipe and the outer tube, on outer tube table wall, be respectively equipped with interface and outlet.Interior pipe is having the evenly distributed micropore that is 45 degree screw linees cuttings along interior pipe table wall near the porch.Before the HEAT SETTING device can be installed at the drawing-off zone, in the draw zone or twisting form in the zone of yarn.

Owing to adopted above technical scheme, technical characterstic of the present invention is to install a HEAT SETTING device in the processing channel of fiber strip additional, the hot medium of certain humidity, concentration is heated fibre bundle yarn humidification in HEAT SETTING device inside, the molecule arranging structure and the flexibility of textile fabric have been used to change, and under tensioning state, carrying out drawing-off, twisting and coiling, yarn appearance quality that obtains like this and inherent physical and mechanical properties all can reach comparatively ideal standard.The HEAT SETTING device links to each other with heating agent or steam generator by pipeline, HEAT SETTING device of the present invention need not change the drawing-off and the twisting mechanism of spinning equipment, before can being installed at the drawing-off zone of spinning equipment easily, in the draw zone or in the zone of twisting formation yarn, reduce in a large number at the Yarn filoplume of after PROCESS FOR TREATMENT of the present invention, being processed, bar is done obviously and is improved, the present invention is applicable to wool spinning, bast fibre spinning, the production of spun silk yarn system and chemical fibre short fiber resultant yarn system and develop high-grade knitted and woven product, technology of the present invention is convenient, fast, rational in infrastructure, and highly versatile.

Description of drawings

Fig. 1 is operation principle of the present invention and apparatus structure schematic diagram

Fig. 2 is the structural representation of HEAT SETTING device

Fig. 3 is for having dug pipe schematic diagram in the helical form aperture

The specific embodiment

Below in conjunction with drawings and Examples the present invention is done and to describe in further detail.

See accompanying

drawing

1,2,3

A kind of method and device and technology of improving the fiber spinning performance, its technical scheme is: a kind of method of improving the fiber spinning performance, in fibre bundle yarn 1 resultant yarn process, install HEAT SETTING device 3 additional, yarn shape textile fiber tow 1 is carried out online high temperature steam state media modification to be handled, HEAT SETTING device 3 is made of pipe interior 12 and outer tube 11, interior pipe 12 is located on the axis of outer tube 11, and interior pipe 12 is connected with the sealed at both ends of outer tube 11.Form interlayer between interior pipe 12 and the outer tube 11, on outer tube table wall, be respectively arranged with import 4 and outlet 6.Interior pipe 12 is having the equally distributed micropore 5 that is 45 degree screw linees cuttings along interior pipe 12 table walls near import 4 places, the interior pipe 12 in the HEAT SETTING device 3 can be linear pattern or shaped form.Its technical process is as follows: fibre bundle yarn 1 is incorporated in the calibrator 3 through conducting bar roller 2, fibre bundle yarn 1 passes the interior pipe 12 of HEAT SETTING device, the import 4 of HEAT SETTING device 3 connects high temperature steam state media generator, in the interlayer that pipe 12 and outer tube 11 formed in high temperature steam state media was sprayed into by the import 4 of HEAT SETTING device 3, and enter along interior pipe 12 table walls and be the evenly distributed micropore 5 that 45 degree screw linees are dug, fibre bundle yarn 1 to pipe 12 in passing softens and submissive processing, fibre bundle yarn 1 after modification is handled is shaped to 10 by front roller 9 outputs and package by rear roller 7 feeding draw zones 8 after drawing-off.High temperature steam state media can adopt different medium (can adopt steam, ethanol or compound finish etc. respectively as media) respectively according to the difference of the raw material of forming fibre bundle yarn 1.In pipe 12, outer tube 11 length L are the 180-200 millimeter, the diameter phi of micropore 50 about 0.2 millimeter, outer tube 11 diameters are the 8-10 millimeter, interior pipe 12 diameters are the 5-6 millimeter, the diameter of import 4 and outlet 6 is about 3 millimeters respectively.Before HEAT SETTING device 3 can be installed at the drawing-off zone of spinning equipment, in the draw zone or twisting form in the zone of yarn.

See specific embodiment

With the fine spining machine is example one, the rove that the fibre bundle yarn adopts Australia's wool spinning to become, high temperature steam state media is adopted and is answered steam, the temperature of water vapour is controlled at 120 degree, relative humidity is 80%, technical process is: the rove 1 that Australia's wool spinning becomes passes the interior pipe 12 of HEAT SETTING device 3 through conducting bar roller 2, temperature is at 120 ℃, to be 80% water vapour sprayed into by the import 4 of HEAT SETTING device 3 relative humidity, the rove that in the pipe 12 Australia's wool spinning is become in the part water vapour enters by the micropore 5 with the arrangement of spiral dress of cutting on interior pipe 12 walls carries out submissive and softening processing, the part of water vapour then circulates between the interlayer of interior pipe 12 and outer tube 11, internally pipe 12 heating are discharged by outlet 6 at last.Enter draw zone 8 through the fibre bundle yarn after submissive and softening the processing through rear roller 7, after front roller 9 is taken out long drawing-down, form spun yarn 10.Its process principle is in the draw twisting process, owing to being subjected to the wet effect of heat, the textile fabric yarn makes in the fiber that adhesion weakens between the big molecule, big molecular heat vibration aggravation, its compliance is changed, and under certain stress effect, producing relative displacement, humidification can make the textile material compliance that faster transformation takes place; Rove or Yarn twisting produce transverse pressure, make yarn more intensive, make fiber be more prone to controlled in drawing-off and twisting mechanism, thereby obtain the yarn than any surface finish and even thickness.

Table 1 is that 27 public affairs that adopt said method to process are propped up wool yarns and do not added the yarn qualities index contrast that this calibrator method is spun, therefrom as seen adopt the spun yarn strength and extension property of being processed after the new process to improve a lot, filoplume has obvious decline, and the bar evenness of spun yarn is improved.

Table 1

Common spinning process with add following of wet heat condition and spin two kinds of wool yarn performance comparison and test
					Common spinning	Hot wet-spun yarn	Change percentage/%
Single thread force/	????148	????178	????17		Common spinning	Hot wet-spun yarn	Change percentage/%
Single thread force/	????148	????178	????17	Single thread extension at break/%	????7.6	????9.2	????21
Hairiness index/root/rice	????103	????83	????-19	Single thread extension at break/%	????7.6	????9.2	????21
Hairiness index/root/rice	????103	????83	????-19	Yarn and single yarn evenness/cv%	????17.43	????16.29	????-5.2

With the fine spining machine is example two, the rove that the fibre bundle yarn adopts 1900 public ramies to be spun into, and high temperature steam state media adopts ethanol, and concentration of alcohol is 90%, and volatilization temperature is controlled at about 80 degree, and its technical process is identical with embodiment one.

Claims

1. method of improving the fiber spinning performance, usually the spinning process is that the fiber semi-products are directly entered the feeding district of spinning equipment and the draw zone of being made up of rear roller and front roller, export resultant yarn then, this method is characterised in that: install HEAT SETTING device (3) additional in fibre bundle yarn (1) resultant yarn process on spinning equipment, fibre bundle yarn (1) is carried out online high temperature steam state media modification to be handled, its technical process is as follows: fibre bundle yarn (1) passes the interior pipe (12) that is installed at HEAT SETTING device (3) on the spinning equipment through conducting bar roller (2), the import (4) of HEAT SETTING device (3) connects high temperature steam state media generator, high temperature steam state media enters in the interlayer of being made up of the interior pipe (12) of HEAT SETTING device (3) and outer tube (11), pass the evenly distributed micropore (5) of cutting on interior pipe (12) wall simultaneously and enter interior pipe (12), and the fibre bundle yarn (1) that passes interior pipe (12) is softened and submissive processing.

2. as claim 1 described a kind of method of improving the fiber spinning performance, it is characterized in that: HEAT SETTING device (3) is made of interior pipe (12) and outer tube (11), interior pipe (12) is arranged on the axis of outer tube (11), the sealed at both ends connection of interior pipe (12) and outer tube (11), form interlayer between interior pipe (12) and the outer tube (11), be respectively equipped with import (4) and outlet (6) on outer tube table wall, interior pipe is locating to be the evenly distributed micropore (5) that 45 degree screw linees are dug along interior pipe (12) table wall near inlet (4).

3. as claim 1 described a kind of method of improving the fiber spinning performance, it is characterized in that: HEAT SETTING device (3) can be installed at before the drawing-off zone of spinning equipment, in the draw zone or twisting form in the zone of yarn.