CN101649497A - Method and equipment for producing polyester staple fibers for filling - Google Patents
Method and equipment for producing polyester staple fibers for filling Download PDFInfo
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- CN101649497A CN101649497A CN200810022595A CN200810022595A CN101649497A CN 101649497 A CN101649497 A CN 101649497A CN 200810022595 A CN200810022595 A CN 200810022595A CN 200810022595 A CN200810022595 A CN 200810022595A CN 101649497 A CN101649497 A CN 101649497A
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Abstract
The invention provides a method and equipment for producing polyester staple fibers for filling, and relates to a method and equipment for producing chemical fibers. The method comprises the followingworking procedures of material screening, revolving drum drying, spinning, winding, bundling, stretching, curling, cutting, relaxation heat shaping, and is characterized in that: in the working procedure of the revolving drum drying, the axis of the revolving drum forms an inclination angel of between 22 and 28 degrees with the ground, the temperature in the revolving drum is between 101 and 110DEG C, the vapor pressure of a revolving drum sleeve is 0.3 to 0.5MPa, the vacuum degree is less than or equal to minus 0.09MPa, and the drying processing time is more than or equal to 8 hours; and inthe working procedure of the spinning, the outlet air temperature of the cooling circular blowing air is controlled to be between 21 and 23 DEG C, the humidity is 70 and 80 percent, the air velocityis 9.0 to 9.5m/s, and the distance between the air outlet of the blowing device and the nozzles of the spinning jet is shortened. When the polyester staple fibers are processed, the dryness is improved firstly; secondly, compared with the prior art, the degree of finish of the fiber is relatively improved; and finally, the elastic recovery rate of the finished product of the fiber is improved. Inaddition, the method ensures regular fiber discharge.
Description
Technical field
The present invention relates to a kind of production method and equipment thereof of chemical fibre, relate in particular to the production method and the equipment thereof of polyester staple fibers for filling dimension.
Background technology
The polyester staple fiber of filling usefulness needs elasticity and response rate preferably, in use has high elasticity, indeformable so that be filled thing.Elasticity and response rate are the indexs that needs strict control in the polyester staple fiber production process, and polyester staple fiber is hollow structure on microcosmic, and the fiber of hollow structure makes fiber have elasticity; Response rate needs material itself to have certain elastic deformability on the one hand, simultaneously the frictional force between the fiber is also had requirement, excessive resilience, the answer index of also can having influence on of skin-friction force between the fiber.Fiber surface fineness index can reduce the frictional force between the fiber, and the uniformity of the mesopore of fiber hollow structure and the size of mesopore can improve the curling processing of elastic deformability and road, the back back resilience of fiber.
Summary of the invention
The present invention is directed to above problem, a kind of surface smoothness index and fiber mesopore coincident indicator by improving polyster fibre is provided, thereby improve the physics elasticity of fiber, and then elastic recovery rate is good in use to make fiber, reduce moisture in the raw material simultaneously, thereby improve the production method of the flexible polyester staple fibers for filling of fibrous material.
The present invention also provides the equipment of realizing the production method of polyester staple fibers for filling.It can improve the size of fiber mesopore, by the variation of structure, improves the elasticity of fiber.
Production method of the present invention, according to raw material screening, drum dried, spinning, coiling, boundling, stretching, curl, the operation of cut-out, relaxation heat setting, packing carries out, in the drum dried operation, rotary drum axis and ground are 22～28 degree angles, temperature is 101～110 ℃ in the rotary drum, rotary drum jacket steam pressure is 0.3～0.5Mpa, vacuum≤-0.09Mpa, dry process time 〉=8 hour; In spinning process, the leaving air temp of air ring blowing is controlled at 21～23 ℃, humidity 70～80%, wind speed 9.0～9.5m/s, and shorten the air outlet of blowing device and spinning head injector spacing from.
Equipment of the present invention comprises device for spinning, device for spinning comprises spinning head, is arranged on the plurality of nozzles of spinning head bottom, around the blowing device that is arranged on the nozzle spray the Silk Road footpath, some blowing mouths of described blowing device are laid on the circumference perpendicular to spray the Silk Road footpath, and blowing mouth and injector spacing are from being 15～25cm.
Described blowing mouth is downward-sloping, and the angle of inclination is 5～25 °.
The present invention has changed production method in polyester staple fiber processing, at first, the location of rotary drum has been proposed to be 22～28 degree angles with ground, has increased the means of vacuumizing.Dispose the rotary drum horizontal positioned of raw material generally speaking, input amount is approximately half of rotary drum volume, and wherein the raw material surface area is that roller diameter multiply by length, and when vacuumizing, the exposed area of raw material is relevant with water evaporation quantity, and area is big more, and aridity is good more; When rotary drum tilts, wait the exposed area of content of starting materials to strengthen, contact negative pressure part area increases, and aridity is improved.Improve aridity, made the fiber the make elasticity on " chemistry " meaning.
Secondly, the index of cooling and shaping wind is improved, the temperature that fiber is come out by nozzle is approximately about 280 ℃, is molten state, cools to make its curing molding.At this moment, its shape of the fiber of hollow, structure be one-step forming just, is the basis of finished product elastic recovery rate index.In order to make fiber surface have fineness preferably, humidity, temperature, wind speed to wind have proposed repeatedly to put into practice the index that draws, the technological means of these index reflections can make the fineness of fiber increase with respect to prior art, and the humidity to wind in the prior art does not require.
At last, the present invention has improved the height of blowing device air outlet, has shortened the distance between air outlet and the nozzle in other words, and this makes and moves in the outlet of freezing point with respect to nozzle of fiber.The fiber of nozzle ejection has mesopore, makes its typing by cooling, and the fiber of plasticity attitude has experienced one section long stroke and entered condensing zone again, and in stroke, mesopore can dwindle owing to mecystasis, the gravity factor of material; And stroke is long more, and the uniformity of mesopore condensation is relatively just poor more.Blowing mouth and injector spacing are from being that 15～25cm makes on the freezing point of fiber and moves, promptly begin condensation in the higher temperature district, make that the fiber intermediate pore size is big, uniformity improves, increased the extensibility of fiber, improve the nature and the maximal draw ratio of undrawn yarn, improved the elastic recovery rate of finished fiber.
In addition, for realizing technology of the present invention, the nozzle height in the spinning equipment is adjusted in the improvement of carrying out on the terylene short fiber production equipment, makes on the freezing point of fiber to move, and promptly begins condensation in the higher temperature district.For avoid horizontal radial entad wind interfere each other, produce air-flow towards nozzle, the present invention is with the downward-sloping certain angle of blowing mouth, make cooling air integral body be back taper, move downward, can not produce the air-flow that generation is disturbed to the nozzle filament mouth upwards, guaranteed that wire vent is regular.
Description of drawings
Fig. 1 is the structural representation of device for spinning in the present device
1 is air inlet duct among the figure, the 2nd, blowing device, the 3rd, shower nozzle, the 4th, nozzle, the 5th, fiber, the 6th, mesopore, the 7th, blowing mouth, the 8th, ventilating duct, among the figure H be blowing mouth and injector spacing from, M is the angle of inclination.
Fig. 2 be among Fig. 1 A to view
The specific embodiment
Production method of the present invention, according to raw material screening, drum dried, spinning, coiling, boundling, stretching, curl, the operation of cut-out, relaxation heat setting, packing carries out, in the drum dried operation, rotary drum axis and ground are 22～28 degree angles, temperature is 101～110 ℃ in the rotary drum, rotary drum jacket steam pressure is 0.3～0.5Mpa, vacuum≤-0.09Mpa, dry process time 〉=8 hour; In spinning process, the leaving air temp of air ring blowing is controlled at 21～23 ℃, humidity 70～80%, wind speed 9.0～9.5m/s, and shorten the air outlet of blowing device and spinning head injector spacing from.
Equipment of the present invention comprises device for spinning, as shown in Figure 1, 2, device for spinning comprises spinning head 3, is arranged on the plurality of nozzles 4 of spinning head 3 bottoms, around the blowing device 2 that is arranged on the nozzle 4 spray the Silk Roads footpaths, blowing device 2 integral body are annular, be provided with several blowing mouths 7 at annular inner surface and be laid on the circumference perpendicular to spray the Silk Road footpath, 4 at blowing mouth 7 and nozzle are 15～25cm apart from H.In blowing device 2 ring walls ventilating duct 8 is arranged, blowing device 2 is by an air inlet duct 1 air feed, and air inlet duct 1, ventilating duct 8, blowing mouth 7 are connected.
Blowing mouth 7 is downward-sloping, and angle of inclination M is 5～25 °.
Claims (3)
1, the production method of polyester staple fibers for filling, according to raw material screening, drum dried, spinning, coiling, boundling, stretching, curl, the operation of cut-out, relaxation heat setting, packing carries out, it is characterized in that, in the drum dried operation, rotary drum axis and ground are 22～28 degree angles, and temperature is 101～110 ℃ in the rotary drum, and rotary drum jacket steam pressure is 0.3～0.5Mpa, vacuum≤-0.09Mpa, dry process time 〉=8 hour; In spinning process, the leaving air temp of air ring blowing is controlled at 21～23 ℃, humidity 70～80%, wind speed 9.0～9.5m/s, and shorten the air outlet of blowing device and spinning head injector spacing from.
2, realize the equipment of the production method of the described polyester staple fibers for filling of claim 1, comprise device for spinning, device for spinning comprises spinning head, is arranged on the plurality of nozzles of spinning head bottom, around the blowing device that is arranged on the nozzle spray the Silk Road footpath, it is characterized in that, some blowing mouths of described blowing device are laid on the circumference perpendicular to spray the Silk Road footpath, and blowing mouth and injector spacing are from being 15～25cm.
3, the equipment of the production method of polyester staple fibers for filling according to claim 2 is characterized in that, described blowing mouth is downward-sloping, and the angle of inclination is 5～25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810022595A CN101649497A (en) | 2008-08-14 | 2008-08-14 | Method and equipment for producing polyester staple fibers for filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810022595A CN101649497A (en) | 2008-08-14 | 2008-08-14 | Method and equipment for producing polyester staple fibers for filling |
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| Publication Number | Publication Date |
|---|---|
| CN101649497A true CN101649497A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810022595A Pending CN101649497A (en) | 2008-08-14 | 2008-08-14 | Method and equipment for producing polyester staple fibers for filling |
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| CN (1) | CN101649497A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386140A (en) * | 2015-12-29 | 2016-03-09 | 重庆市大通茂纺织科技有限公司 | Chemical fiber circular blow cooling method |
| CN109137099A (en) * | 2018-10-31 | 2019-01-04 | 广东秋盛资源股份有限公司 | 7D porous hollow fiber and its preparation method and application |
-
2008
- 2008-08-14 CN CN200810022595A patent/CN101649497A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386140A (en) * | 2015-12-29 | 2016-03-09 | 重庆市大通茂纺织科技有限公司 | Chemical fiber circular blow cooling method |
| CN105386140B (en) * | 2015-12-29 | 2018-04-27 | 重庆市大通茂纺织科技有限公司 | A kind of chemical fibre ring blows cooling means |
| CN109137099A (en) * | 2018-10-31 | 2019-01-04 | 广东秋盛资源股份有限公司 | 7D porous hollow fiber and its preparation method and application |
| CN109137099B (en) * | 2018-10-31 | 2020-05-08 | 广东秋盛资源股份有限公司 | 7D porous hollow fiber and preparation method and application thereof |
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Open date: 20100217 |