CN102995151B - The method of the colored composite terylene silk of a kind of One-step production - Google Patents
The method of the colored composite terylene silk of a kind of One-step production Download PDFInfo
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- CN102995151B CN102995151B CN201210545470.7A CN201210545470A CN102995151B CN 102995151 B CN102995151 B CN 102995151B CN 201210545470 A CN201210545470 A CN 201210545470A CN 102995151 B CN102995151 B CN 102995151B
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Abstract
The invention discloses the method for the colored composite terylene silk of a kind of One-step production, divide different positions by spinning silk position, the mixed fine networking of the synchronous different road spinning of preoriented yarn (POY) and full-drawn yarn (FDY) and tow is compound, having realized original liquid coloring, spinning, drawing-off, four processing link one-step method of networking completes, the technological process of production is short, and production efficiency is high, and energy consumption loss is little, pollutant emission reduces, ecological, environmental protective.
Description
Technical field
The present invention relates to a kind of melt spinning method, particularly the method for the colored composite terylene silk of a kind of One-step production.
Background technology
White mixed fiber composite dacron thread technology comparative maturity, but the two-step process that adopt produce more, technological process is long, production efficiency is low, energy consumption and loss large, and to make colored fabric, also need to weave rear textile dyeing processing, this follow-up deep processing link is seriously polluted, not environmental protection of the utmost point. Existing some improvement to this technology at present, as equipment and the method for disclosed One-step production chemical fibre terylene composite filament in Patent Application Publication CN102618983A, 24/position multi-heterogeneous hybrid yarn composite fiber of disclosed one-step method spinning winding joint production etc. in patent documentation CN202265627U. But, the improvement of these prior aries to this production, described one-step method is mainly winding portion, preposition spinning step adopts two spinning manifolds to produce respectively different dacron threads, do not realize real same spinning manifold one-step method, the technique that does not more realize colored composite terylene silk is integrated.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the method for the colored composite terylene silk of a kind of One-step production is provided.
For achieving the above object, the present invention takes following technical proposals to realize:
A method for the colored composite terylene silk of One-step production, comprises the following steps:
A. the polyester slice in chip bunker is delivered in chip dryer and is dried, be then delivered to heating and melting in screw extruder and become melt;
B. the Masterbatch in Masterbatch feed bin is fully dry in master batch drying machine, by after small screw implanter heating and melting through measuring pump accurate measurement enter section screw extruder polyester fondant output channel, together with polyester fondant, be uniformly mixed the dispersed dyeing realizing polyester fondant through dynamic mixer;
C. the melt after dyeing enters spinning manifold, described spinning manifold is divided into two parts, wherein a part of spinning station adopts the Direct Spinning preoriented yarn process route of (being called for short POY), and another part spinning station is provided with hot-rolling drafting system, adopts full-drawn yarn (being called for short FDY) process route;
D. described preoriented yarn and full-drawn yarn are through lateral-blowing air cooling device and after finishing oil pump metering spray oils, from spinning shaft, output is divided into two-way, in one tunnel, preoriented yarn enters in composite network device through spinning shaft and godet, another road fully drawn yarn is after spinning shaft, through the pre-preliminary networking of the nozzle of interlace, after fully stretching under the effect of the first draw roll and the second draw roll, enter composite network device and preoriented yarn (POY) tow and close;
E. preoriented yarn (POY) and full-drawn yarn (FDY) carry out network combined sizing by networking nozzle in composite network device, form mixed fiber composite color polyester silk;
F. described two different mixed fiber composite dacron thread enters and in up-coiler, batches moulding.
Preferably, in described spinning manifold, preoriented yarn (POY) spinning station is provided with the spinneret of odd-shaped cross section spinneret orifice.
Optionally, the spinneret orifice of described odd-shaped cross section is the one in triangle, multi-leaf-shaped, Y shape, pentagon, hollow shape or H shape.
Preferably, in described spinning manifold, full-drawn yarn (FDY) spinning station is provided with the spinneret of circular cross-section spinneret orifice.
Preferably, upper oil nozzle is the spray oil feeding system with measuring pump.
Compared with prior art, the present invention has the following advantages: divide different positions by spinning silk position, the mixed fine networking of the synchronous spinning of preoriented yarn (POY) and full-drawn yarn (FDY) and tow is compound, having realized original liquid coloring, spinning, drawing-off, four processing link one-step method of networking completes, the technological process of production is short, and production efficiency is high, and energy consumption loss is little, pollutant emission reduces, ecological, environmental protective; Due to physical difference such as heat-shrinkable, Qiang Shenxing, stiffness and the flexibilities of preoriented yarn (POY) and full-drawn yarn (FDY) dacron thread fiber, after the networking before reeling is compound, formation has the special construction of two heterogeneous " core-skin " that triangle, the profiled-cross-section POY fibre bundle cortex such as multi-leaf-shaped and conventional circular cross-section FDY fibre bundle sandwich layer distribute, the colored tow of entirety not only had POY silk soft feel, but also there is body bone and the intensity of FDY silk, be the desirable ecological, environmental protective new material that color polyester silk simulate wool fashion clothing fabric is produced.
Brief description of the drawings
Fig. 1 is the production technological process of the colored composite terylene silk of One-step production in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail.
The production technological process of the colored composite terylene silk of One-step production as shown in Figure 1, concrete said method comprising the steps of:
A. the polyester slice in chip bunker 1 is delivered in chip dryer 2 and is dried, be then delivered to heating and melting in screw extruder 3 and become melt.
The present invention's polyester used is PET (being called for short PET), PET raw material is through vibration screening, screen out the particle that powder and particle diameter are not inconsistent, obtaining satisfactory section raw material is delivered in chip bunker 1 for subsequent use, before melting, also section to be delivered in drying machine 2 and is dried, remove the moisture in section. Dried section enters carries out heating and melting in screw extruder 3. In embodiments of the invention, adopted single screw extrusion machine 3, compared to the prior art, equipment and process is more succinct, is easy to control.
B. the Masterbatch in Masterbatch feed bin 12 is fully dry in master batch drying machine 13, by after small screw implanter 14 heating and meltings through measuring pump 14 accurate measurements enter section screw extruder 3 PET melt output channel, together with PET melt, be uniformly mixed the dispersed dyeing realizing PET melt through dynamic mixer 16.
Colored composite terylene silk of the prior art is generally after having weaved composite fibre, then row dyeing, and this follow-up dyeing process is seriously polluted. And in the present embodiment, adopt Masterbatch to dye to entering spinning manifold 4 melt before, environmentally safe, and uniform coloring is stable. In preferred embodiment, can according to actual needs, antiultraviolet age resister, antistatic additive etc. be integrated in one with color master-batch, i.e. multifunctional mother granules, easy to use, can be in order to weave the fabric of functional diversities.
In actual production, can on the production line of former polyester colored fiber long filament, transform this equipment according to the technical scheme in the present invention, realize original liquid coloring, spin, drawing-off and four processing link one-step method of networking complete.
C. the melt after dyeing enters spinning manifold 4, described spinning manifold is divided into two parts, wherein a part of spinning station adopts the process route of Direct Spinning preoriented yarn (POY), and another part spinning station is provided with hot-rolling drafting system, adopts full-drawn yarn (FDY) process route.
In the present embodiment, in spinning manifold, a part, without transformation, directly adopts high-speed spinning process can obtain preoriented yarn (POY); Another part has been set up hot-rolling drafting system, preoriented yarn further drawn, and low speed spinning, traction at a high speed, thus obtain full-drawn yarn (FDY).
Spinneret orifice through certain geometrical shape can spin out the profiled filament with special cross section shape, described profiled filament is that the natural structures such as imitative silk, wool develop, compared with general fiber, optical effect is good, the sensation of " mixing the spurious with the genuine " to people, and improve the deficiency of the easy pilling of circular-section fibers, anti-snag performance is good, improves bulkiness and the gas permeability of fiber simultaneously. In the present embodiment, preoriented yarn in spinning manifold (POY) spinning station is provided with the spinneret of different in nature cross section spinneret orifice, and the spinneret orifice of described odd-shaped cross section is the one in triangle, multi-leaf-shaped, Y shape, pentagon, hollow shape or H shape. Full-drawn yarn in spinning manifold (FDY) spinning station is provided with the spinneret of circular cross-section spinneret orifice. Due to physical difference such as heat-shrinkable, Qiang Shenxing, stiffness and the flexibilities of POY and FDY different process dacron thread fiber, the composite terylene silk obtaining after the networking of composite network device is compound has two heterogeneous special " core-skin " structure that triangle, the profiled-cross-section POY fibre bundle cortex such as multi-leaf-shaped and conventional circular cross-section FDY fibre bundle sandwich layer distribute, the colored tow of entirety not only had POY silk soft feel, but also there is body bone and the intensity of FDY silk, be the desirable ecological, environmental protective new material that color polyester silk simulate wool fashion clothing fabric is produced.
D. described preoriented yarn (POY) and full-drawn yarn (FDY), after lateral-blowing air cooling device 5 and upper oil nozzle 6, from spinning shaft 7, output is divided into two-way, in one tunnel, preorientation tow (POY) 18 enters in composite network device 20 by one group of draw roll 17 seal wire, in another road, full-drawn yarn bundle (FDY) 19 strengthens after the convergence of FDY tow through pre-the nozzle of interlace 8, after stretching, enters composite network device 20 by the first draw roll 10 and the second draw roll 9.
The object oiling is to increase convergence, the antistatic and flatness of tow, to meet the requirement of stretching, curling and rear processing. In the present embodiment, spinning oil comprises various ingredients composite the forming according to actual needs in lubricant, antistatic additive, boundling, emulsifying agent and adjusting agent, also has good heat endurance.
Upper oil nozzle is the spray oil feeding system with measuring pump, to improve the uniform and stable property oiling with tow tension.
E. preoriented yarn (POY) 18 and full-drawn yarn (FDY) 19 are undertaken network combinedly in composite network device 20 by the networking of nozzle hot air shaping, form two different mixed fiber composite color polyester silks 21.
F. described two colored composite terylene silk of different mixed fibre enters in up-coiler 23, through friction roller 22 wound bobbins 11, realizes two colored composite terylene silks of different mixed fibre and batch moulding on winding bobbin 11.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement to make possible variation and amendment to technical solution of the present invention; therefore; every content that does not depart from technical solution of the present invention; to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (3)
1. a method for the colored composite terylene silk of One-step production, is characterized in that, comprisesFollowing steps:
A. the polyester slice in chip bunker is delivered in chip dryer and is dried,Then be delivered to heating and melting in screw extruder and become melt;
B. the Masterbatch in Masterbatch feed bin is fully dry in master batch drying machine, by littleAfter screw rod implanter heating and melting, through measuring pump, accurate measurement enters section screw rodThe polyester fondant output channel of extruder, together with polyester fondant, through dynamically mixedClose device and be uniformly mixed the dispersed dyeing realizing polyester fondant;
C. the melt after dyeing enters spinning manifold, and described spinning manifold is divided into two parts,Wherein a part of spinning station adopts the process route of Direct Spinning preoriented yarn, anotherPart spinning station is provided with hot-rolling drafting system, adopts full-drawn yarn process route;
D. described preoriented yarn and full-drawn yarn are through lateral-blowing air cooling device and through finishing oil pumpAfter metering spray oils, from spinning shaft, output is divided into two-way, pre-in a roadOrientation silk enters in composite network device through spinning shaft and godet, another roadFull-drawn yarn after spinning shaft, through the pre-preliminary networking of the nozzle of interlace,After fully stretching under the effect of the first draw roll and the second draw roll, enter composite webNetwork device and POY tow also close;
E. preoriented yarn and full-drawn yarn are undertaken by networking nozzle in composite network deviceNetwork combined sizing, forms mixed fiber composite color polyester silk;
F. described mixed fiber composite color polyester silk enters and in up-coiler, batches moulding;
In described spinning manifold, preoriented yarn spinning station is provided with the spray of odd-shaped cross section spinneret orificeFilament plate; In described spinning manifold, full-drawn yarn spinning station is provided with circular cross-section spray silkThe spinneret in hole.
2. method according to claim 1, is characterized in that, described odd-shaped cross sectionSpinneret orifice is in triangle, multi-leaf-shaped, Y shape, pentagon, hollow shape or H shapeA kind of.
3. method according to claim 1, is characterized in that, described preoriented yarn andFull-drawn yarn is the spray with measuring pump at the spinning process upper oil nozzle used that oilsOil feeding system.
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| CN201210545470.7A CN102995151B (en) | 2012-12-17 | 2012-12-17 | The method of the colored composite terylene silk of a kind of One-step production |
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| CN201210545470.7A CN102995151B (en) | 2012-12-17 | 2012-12-17 | The method of the colored composite terylene silk of a kind of One-step production |
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| CN102995151B true CN102995151B (en) | 2016-05-18 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144198A (en) * | 2007-10-18 | 2008-03-19 | 江苏盛虹化纤有限公司 | One-step production process of triiso-superfine fiber |
| CN101200826A (en) * | 2007-12-25 | 2008-06-18 | 吴江丝绸股份有限公司化纤厂 | Method and device for manufacturing fully drawn yarn/pre-oriented yarn stranding composite yarn by one-step process |
| CN101265627A (en) * | 2007-05-16 | 2008-09-17 | 桐昆集团股份有限公司 | Terylene half speed blended spinning-type ammonia-substituted fiber blended spinning method and its apparatus |
| CN101974793A (en) * | 2010-07-15 | 2011-02-16 | 嘉兴学院 | One-step spinning method of multi-difference combined yarn |
| CN102443915A (en) * | 2011-09-07 | 2012-05-09 | 桐昆集团股份有限公司 | Method for producing polyester ITY (Interlaced Texture Yarn) through flat drafting |
| CN102443909A (en) * | 2011-10-31 | 2012-05-09 | 苏州巨源纤维科技有限公司 | Preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn |
| CN102618983A (en) * | 2012-03-19 | 2012-08-01 | 北京德厚朴化工技术有限公司 | Production method for chemical fiber and polyester composite yarns |
| CN102704100A (en) * | 2011-03-28 | 2012-10-03 | 徐州斯尔克纤维科技股份公司 | Cation different shrinkage composite filament product produced by one-step method and process |
-
2012
- 2012-12-17 CN CN201210545470.7A patent/CN102995151B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265627A (en) * | 2007-05-16 | 2008-09-17 | 桐昆集团股份有限公司 | Terylene half speed blended spinning-type ammonia-substituted fiber blended spinning method and its apparatus |
| CN101144198A (en) * | 2007-10-18 | 2008-03-19 | 江苏盛虹化纤有限公司 | One-step production process of triiso-superfine fiber |
| CN101200826A (en) * | 2007-12-25 | 2008-06-18 | 吴江丝绸股份有限公司化纤厂 | Method and device for manufacturing fully drawn yarn/pre-oriented yarn stranding composite yarn by one-step process |
| CN101974793A (en) * | 2010-07-15 | 2011-02-16 | 嘉兴学院 | One-step spinning method of multi-difference combined yarn |
| CN102704100A (en) * | 2011-03-28 | 2012-10-03 | 徐州斯尔克纤维科技股份公司 | Cation different shrinkage composite filament product produced by one-step method and process |
| CN102443915A (en) * | 2011-09-07 | 2012-05-09 | 桐昆集团股份有限公司 | Method for producing polyester ITY (Interlaced Texture Yarn) through flat drafting |
| CN102443909A (en) * | 2011-10-31 | 2012-05-09 | 苏州巨源纤维科技有限公司 | Preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn |
| CN102618983A (en) * | 2012-03-19 | 2012-08-01 | 北京德厚朴化工技术有限公司 | Production method for chemical fiber and polyester composite yarns |
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