CN101348946A - Improved method for producing colored and differential terylene fibre by melt direct spinning on-line adding technology - Google Patents
Improved method for producing colored and differential terylene fibre by melt direct spinning on-line adding technology Download PDFInfo
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- CN101348946A CN101348946A CNA200810021200XA CN200810021200A CN101348946A CN 101348946 A CN101348946 A CN 101348946A CN A200810021200X A CNA200810021200X A CN A200810021200XA CN 200810021200 A CN200810021200 A CN 200810021200A CN 101348946 A CN101348946 A CN 101348946A
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Abstract
A method for manufacturing a colored and differential polyester fiber through an improved fused mass direct-spinning online additive technique belongs to the technical field of synthetic fiber manufacturing method, aiming to provide a method for manufacturing a colored and differential polyester fiber through the improved fused mass direct-spinning online additive technique which is convenient for manufacturing black and dark color polyester fibers. The method comprises the following technical points: before polyester fused mass enters a spinning box body, a dried and fused modified raw material is fed into the spinning box body, and is sufficiently and evenly mixed with the polyester fused mass through an efficient static mixer; and after filtration, the modified raw material and the polyester fused mass are fed into the spinning box body together so as to carry out spinning. The modified raw material is subjected to drying and melting, and is indirectly injected into the efficient static mixer, is sufficiently and evenly mixed with the polyester fused mass, and is subjected to filteration. The technical points ensure excellent fluidity and filtering performance, and prolong the switching cycle of a filter and the change cycle of a spinning component; moreover, the method reduces the loss of color master batch during filtration as well as the production cost for black and dark color fibers.
Description
Technical field
The present invention relates to the method that a kind of improved melt direct spinning on-line adding technology is produced coloured and differential terylene fibre, belong to synthetic fiber production method technical field.
Background technology
The production of fibre in differentiation and colored fibre is a new technology in the production of chemical fibre.Along with developing rapidly of chemical fibres industry, the production technology of fibre in differentiation and colored fibre comes into one's own day by day, and the new production technology of development and application becomes one of development trend of chemical fibres industry.
Chinese patent 200610096677.5 discloses the method that a kind of melt direct spinning on-line adding technology is produced coloured and differential terylene fibre, traditional section that overcome of this method success is spun and is produced many shortcomings and unfavorable factor coloured and that differential terylene fibre exists, provides that a kind of cost is low, output is high, technology is simple, aberration is easy to control and fabric functional effect durability, melt direct spinning on-line adding technology production that fastness is good is coloured and the method for differential terylene fibre.But, this method is in the process of online interpolation modified feedstock one Masterbatch of fused mass directly spinning, earlier with after master batch drying, the fusion, enter the melt Conveying pipeline of modified feedstock, filter by filter, add the polyester fondant trunk line by injection valve then, mix, enter spinning manifold and carry out spinning through high efficiency static mixer.There is certain flaw in this technology in actual application, mainly show as: when producing black fiber or dull fiber, because the ratio that black and dark Masterbatch add is big, be about 6%--10%, so Masterbatch is after melting, enter the melt Conveying pipeline of modified feedstock, and directly filter by filter.Because its flowability is relatively poor, causes Masterbatch melt filtration difficulty, pigment or dyestuff are blocked in filter, have both caused the waste of modified feedstock, cause the shortening of filter switching cycle and filament spinning component replacement cycle again, even the normal production of influence.As produce dark dark blue terylene fullly drawn yarn (FDY) (FDY), Masterbatch fondant filter switching cycle is 3 days, the filament spinning component replacement cycle is 1 day, and produce goth black polyester staple fiber, Masterbatch fondant filter switching cycle only is 8 hours, the filament spinning component replacement cycle is 1 day, is difficult to realize the quantity-produced requirement.
Summary of the invention
The method that the object of the present invention is to provide a kind of improved melt direct spinning on-line adding technology that can be convenient to produce black and dark polyster fibre to produce coloured and differential terylene fibre,
Its technical scheme is: a kind of improved melt direct spinning on-line adding technology is produced the method for coloured and differential terylene fibre, comprise polyester, melt Conveying, spinning, post processing, it is characterized in that: before polyester fondant enters spinning manifold, inject the modified feedstock of drying, fusion, with polyester fondant through the full and uniform mixing of high efficiency static mixer, after the filtration, enter spinning manifold jointly and carry out spinning.
Technique effect of the present invention and advantage are: owing to will directly inject high efficiency static mixer after modified feedstock drying, the fusion, after polyester fondant carries out full and uniform melting and mixes, filter again, therefore, the Masterbatch melt is abundant with polyester fondant mixing melting, and its flowability, strainability are good.Through test, produce dark dark blue terylene fullly drawn yarn (FDY) (FDY), master batch fondant filter switching cycle is 10-15 days, the filament spinning component replacement cycle is 5 days.And produce goth black polyester staple fiber, and master batch fondant filter switching cycle then is 7-10 days, the filament spinning component replacement cycle is 3-5 days, has prolonged the replacement cycle of the switching cycle and the filament spinning component of filter greatly, has realized purpose continuous, steady production; Filter also can play the effect that the further abundant melting of Masterbatch melt and polyester fondant is mixed simultaneously, has reduced the loss of Masterbatch in filter process, has reduced black and dull fiber production cost; In addition, it is little that the cost skill is improved the back equipment investment, and control also is easy to realize automatically.
The specific embodiment
Embodiment 1: produce goth black polyester staple fiber, production technology is as follows:
Polyester fondant inherent viscosity IV=0.64dl/g, Masterbatch inherent viscosity IV=0.35dl/g, master batch after 8～10 hours, guarantees master batch moisture content 30ppm 130 ℃ of condition dryings through the intermittent vacuum rotary drum, deliver to master batch and add feed bin, deliver to the screw extruder charge door by gravity.Screw extruder adopts Electric heating, heating-up temperature is: 270～285 ℃ melt extrude modified feedstock, enter the melt Conveying pipeline of modified feedstock, by the smelt gear pump positive battery metering, guarantee melt pressure 〉=8Mpa, 290 ℃ of melt temperatures, measuring by gear pump, guarantee that the Masterbatch adding proportion is 8% (percentage by weight), melt pressure is 15Mpa behind the pump, adds the polyester fondant trunk line by injection valve then, mix through high efficiency static mixer, fondant filter by 40～60 μ m specifications filters again, removes impurity, enters spinning manifold behind the filter and carries out spinning.Through spray silk, cooling off, oil to reel obtains as-spun fibre behind the bucket, again through boundling, drawing-off, curl, relaxation heat setting, cut-out, packing, produce the cotton type polyester staple fiber of black.Product quality indicator is:
Color: black
Line density: 1.56dtex
Fracture strength: 5.4CN/dtex
Extension at break: 28.0%
Crimpness: 13.0%
Shearing length: 38mm.
Fondant filter switching cycle: 7-10 days
Filament spinning component replacement cycle: 3-5 days.
Embodiment 2: produce dark dark blue terylene fullly drawn yarn (FDY) (FDY), production technology is as follows:
Polyester fondant inherent viscosity IV=0.64dl/g, master batch inherent viscosity IV=0.37dl/g, master batch after 8～10 hours, guarantees master batch moisture content 30ppm 130 ℃ of condition dryings through the intermittent vacuum rotary drum, deliver to master batch and add feed bin, deliver to the screw extruder charge door by gravity; Screw extruder adopts Electric heating, heating-up temperature is: 270～285 ℃ melt extrude modified feedstock, enter the melt Conveying pipeline of modified feedstock, by the smelt gear pump positive battery metering, guarantee melt pressure 〉=8Mpa, 292 ℃ of melt temperatures, measuring by gear pump, guarantee that the master batch adding proportion is 6% (percentage by weight), melt pressure is 15Mpa behind the pump, add the polyester fondant trunk line by injection valve then, mix through high efficiency static mixer, fondant filter by 40～60 μ m specifications filters again, remove impurity, enter spinning manifold behind the filter and carry out spinning, melt is by circular spinneret orifice (aperture φ is 0.24mm), the circular spinnerets in 48 holes, the gained tow cools off through lateral blowing, oil, typing, stretch, network, reel, the operations such as bucket that fall are produced dark navy terylene fullly drawn yarn (FDY) (FDY).In above-mentioned operation, the lateral blowing temperature is 23 ℃, wind speed 0.50m/s, first heat roller temperature: 90 ℃, first hot-rolling speed: the 1450m/min, the wrapping wire number of turns: 6.5 circles, second heat roller temperature: 128 ℃, second hot-rolling speed: the 4300m/min, the wrapping wire number of turns: 6.5 circles, winding speed: 4240m/min, network pressure: 0.3Mpa, volume is heavy: 8.5Kg.
Product quality indicator is:
Color: dark blue deeply
Specification: 111dtex/48f
Fracture strength: 4.2CN/dtex
Extension at break: 24.0%
Dye uniformity (ash card): 〉=4
Fondant filter switching cycle: 10-15 days
The filament spinning component replacement cycle: 5 days.
Claims (1)
1, a kind of improved melt direct spinning on-line adding technology is produced the method for coloured and differential terylene fibre, comprise polyester, melt Conveying, spinning, post processing, it is characterized in that: before polyester fondant enters spinning manifold, inject the modified feedstock of drying, fusion, with polyester fondant through the full and uniform mixing of high efficiency static mixer, after the filtration, enter spinning manifold jointly and carry out spinning.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200810021200XA CN101348946A (en) | 2008-08-21 | 2008-08-21 | Improved method for producing colored and differential terylene fibre by melt direct spinning on-line adding technology |
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| CNA200810021200XA CN101348946A (en) | 2008-08-21 | 2008-08-21 | Improved method for producing colored and differential terylene fibre by melt direct spinning on-line adding technology |
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| CN101348946A true CN101348946A (en) | 2009-01-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134756A (en) * | 2011-03-23 | 2011-07-27 | 江苏华西村股份有限公司 | Method for controlling homogeneity of fluorescent-whitened polyester staple fiber product |
| CN102719908A (en) * | 2012-06-20 | 2012-10-10 | 福建百宏聚纤科技实业有限公司 | Direct-spun black yarn FDY processing process based on master batch injection melt |
| CN103382580A (en) * | 2013-07-18 | 2013-11-06 | 浙江华欣新材料股份有限公司 | On-line injection continuous switching device and switching method thereof |
| CN104294393A (en) * | 2013-07-17 | 2015-01-21 | 福建百宏聚纤科技实业有限公司 | A processing process of high-modulus low-shrinkage high-colour-fastness polyester filament yarn by direct melt spinning and real-time injection |
| CN106757406A (en) * | 2016-11-30 | 2017-05-31 | 桐昆集团股份有限公司 | A kind of production method of full-dull modified dacron |
| CN106835307A (en) * | 2016-11-25 | 2017-06-13 | 深圳中凝科技有限公司 | The preparation method that fused mass directly spinning adds airsetting glue fiber online |
-
2008
- 2008-08-21 CN CNA200810021200XA patent/CN101348946A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134756A (en) * | 2011-03-23 | 2011-07-27 | 江苏华西村股份有限公司 | Method for controlling homogeneity of fluorescent-whitened polyester staple fiber product |
| CN102134756B (en) * | 2011-03-23 | 2012-11-21 | 江苏华西村股份有限公司 | Method for controlling homogeneity of fluorescent-whitened polyester staple fiber product |
| CN102719908A (en) * | 2012-06-20 | 2012-10-10 | 福建百宏聚纤科技实业有限公司 | Direct-spun black yarn FDY processing process based on master batch injection melt |
| CN102719908B (en) * | 2012-06-20 | 2014-05-07 | 福建百宏聚纤科技实业有限公司 | Direct-spun black yarn FDY processing process based on master batch injection melt |
| CN104294393A (en) * | 2013-07-17 | 2015-01-21 | 福建百宏聚纤科技实业有限公司 | A processing process of high-modulus low-shrinkage high-colour-fastness polyester filament yarn by direct melt spinning and real-time injection |
| CN104294393B (en) * | 2013-07-17 | 2016-04-20 | 福建百宏聚纤科技实业有限公司 | Fused mass directly spinning high color fastness injects the processing technology of High Modulus And Low Shrinkage polyester filament in real time |
| CN103382580A (en) * | 2013-07-18 | 2013-11-06 | 浙江华欣新材料股份有限公司 | On-line injection continuous switching device and switching method thereof |
| CN103382580B (en) * | 2013-07-18 | 2016-01-27 | 浙江华欣新材料股份有限公司 | The continuous switching device shifter of online injection and changing method thereof |
| CN106835307A (en) * | 2016-11-25 | 2017-06-13 | 深圳中凝科技有限公司 | The preparation method that fused mass directly spinning adds airsetting glue fiber online |
| CN106757406A (en) * | 2016-11-30 | 2017-05-31 | 桐昆集团股份有限公司 | A kind of production method of full-dull modified dacron |
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