CN102828263A - High-resilience brightening polyester BCF (bulk continuous filament) yarn for special use and preparation method - Google Patents
High-resilience brightening polyester BCF (bulk continuous filament) yarn for special use and preparation method Download PDFInfo
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- CN102828263A CN102828263A CN2012102916969A CN201210291696A CN102828263A CN 102828263 A CN102828263 A CN 102828263A CN 2012102916969 A CN2012102916969 A CN 2012102916969A CN 201210291696 A CN201210291696 A CN 201210291696A CN 102828263 A CN102828263 A CN 102828263A
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Abstract
The invention discloses a high-resilience brightening polyester BCF (bulk continuous filament) yarn for special use and a preparation method and belongs to the technical field of novel chemical fiber material production. The high-resilience brightening polyester BCF yarn for special use is characterized in that the cross section of the yarn is of a composite special-shaped structure composed of trefoils and triangles, the yarn has high-resilience, whitening and brightening functions and is made of ECDP (easy cationic dyeable polyester) mixed with o-phthalimide, and the number of spinneret orifices is 50-90. The method includes the preparation steps of pre-crystallization, drying, melting, spinning, cooling by cross air blowing, oiling, stretching strain, cooling by a cooler pan, network knotting and winding into drums. The high-resilience brightening polyester BCF yarn for special use and the preparation method have the advantages that the high-resilience brightening polyester BCF yarn for special use is recyclable, low in cost, high in resilience and capable of substituting for an expansive polyamide BCF as the brightness of the yarn can reach to that of the polyamide BCF.
Description
Technical field
The invention belongs to new chemical fibrous material technical field, be specifically related to extraordinary silk and the preparation method of using of a kind of high resilience blast terylene BCF.
Background technology
BCF (Bulk Continuous Filament is called for short BCF) technology is to utilize hot fluid to spray the technology that deformation processing is produced the chemical fibre bulk filament.What the most extensively adopt now is spinning-stretching-distortion-coiling one-step method, and it has technological process weak point, small investment, output advantages of higher.The BCF product has the advantages that bulkiness is good, the three-dimensional crimp shaping is stable, feel is good, has been widely used in fields such as family expenses/commercial carpet, automobile cushion, drapery.
The occupation rate of present global BCF: polypropylene fibre (PP) BCF is 52%, and polyamide fibre (PA) BCF is 47%, and terylene (PET) BCF only accounts for 1%.According to incompletely statistics, last year, the output of China BCF was 100,000 tons, and wherein polypropylene fibre (PP) BCF is 80,000 tons, and polyamide fibre (PA) BCF is 1.85 ten thousand tons, and terylene (PET) BCF is 0.15 ten thousand ton, only accounts for 1.5%.
Though traditional METHOD FOR POLYPROPYLENE BCF occupies 80%,, lose ground because difficulty dyes, intensity is low and poor flexibility; Though traditional polyamide fibre BCF has easy dyeing, color and luster is bright and the intensity advantages of higher,, do not accepted by carpet manufacture producer owing to cost an arm and a leg yet.And polyester filament has only POY (spun filament), FDY (silk stretches) and DTY (textured filament) at present, because bulkiness is little, resilience is poor, can only be used for the dress ornament fabric, can't be used for the carpet matte.
Patent of invention 200810063476.4 is a kind of easy-to-dye terylene BCF, because the spinnerets hole count is many, greater than more than 90, its resilience is relatively poor, and brightness is darker, and too bigger than polyamide fibre BCF luminance difference, range of application is narrower.The present invention intends and adopts special ECDP modification section; Through preparatory crystallizing and drying, accurate measurement, thawing, spray silk, drawing-off, distortion, friendship network and coiling; It is extraordinary with silk that one-step method is produced multifunctional terylene BCF, reaches the scientific and technological content of raising terylene BCF product and the purpose of added value.
It is good that product of the present invention is bulk, and intensity is high, recyclable environmental protection, and cost is low; Resilience is high, and brightness is satisfied the demand of carpet product diversification near polyamide fibre BCF, and it is bright-colored particularly to meet the demands; The commercial carpet that resilience is high, alternative expensive polyamide fibre BCF has a extensive future, and is significant.
Summary of the invention
The object of the present invention is to provide a kind of high resilience, brightness is extraordinary with silk near the high resilience blast terylene BCF of polyamide fibre BCF.
Another object of the present invention is to provides: the extraordinary preparation method with silk of high resilience blast terylene BCF.
The present invention can adopt following technical scheme to realize:
High resilience blast terylene BCF is extraordinary to be is characterized in that with silk, and its cross sectional shape is the composite special-shaped structure that trilobal (Y) and triangle (△) are formed.Make terylene BCF extraordinary, the shinny advantage in triangle (△) cross section is arranged again with the bulk good advantage in silk existing trilobal (Y) cross section.
The extraordinary preparation method of high resilience blast terylene BCF with silk; It may further comprise the steps: at first with ECDP (easy dyeing cationic polyester) section through preparatory crystallization and drying, mix through metering and to add extruder heat fused, the spinnerets spray silk of spinneret hole through being provided with composite special-shaped structure to, through the lateral blowing cooling; Oil through last oil nozzle is two-sided; Carry out the two levels of thermal draw roll then and stretch, through hot gas filling distortion, cooler pan cooling; Get the network joint through Network device with compressed air, be wound into the bobbin of cylindrical shape at last.
The extraordinary preparation method of high resilience blast terylene BCF with silk, said spinnerets is provided with 50-90 spinneret hole, correspondingly; Can spray 50-90 root multifilament, in this scope, be screwed in together through the network joint; Rebound performance is preferably all arranged, and spinneret hole is too much, and rebound performance is just relatively poor.
The extraordinary preparation method of high resilience blast terylene BCF with silk; Said spinneret hole shape of cross section is the composite special-shaped structure that trilobal (Y) and triangle (△) are formed; Make the terylene BCF that processes extraordinary, the shinny advantage in triangle (△) cross section is arranged again with the bulk good advantage in silk existing trilobal (Y) cross section.
The extraordinary preparation method of high resilience blast terylene BCF with silk, said ECDP (easy dyeing cationic polyester) section is through modification, because of in the ECDP section, having added the BIDA type; It is a fluorescent whitening agent, is used to brighten blast, and it can absorb sightless ultraviolet light (the about 360-380nm of wave-length coverage); Be converted into long blue light of wavelength or the visible light of purple; Thereby can compensate undesired little gold-tinted in the matrix, reflect more visible light simultaneously than original incident (the about 400-600nm of wave-length coverage), thus make fiber seem more in vain, brighter, dyeing more bright-coloured; Final near the brightness that reaches polyamide fibre BCF; Can reclaim very much simultaneously repeatedly and use, environmental protection, thus can the expensive polyamide fibre BCF of alternative materials.
The extraordinary preparation method of high resilience blast terylene BCF with silk, low preparatory crystallization and baking temperature are adopted in said ECDP section, and crystallization temperature is lower than 145 ℃ in advance, and baking temperature is lower than 140 ℃, prolongs drying time greater than 8 hours.Because of ECDP section process modified poly, added the BIDA type, its vitrification point is descended, moisture absorption is lumpd easily, and the drying means when all adopt low temperature length makes its section moisture content less than 0.004% (40ppm), is used for normal spinning production.
Beneficial effect: the high resilience blast of the present invention terylene BCF is extraordinary bulk good with silk, and intensity is high, recyclable environmental protection; Cost is low, and resilience is high, and brightness is near polyamide fibre BCF; Satisfy the demand of carpet product diversification; It is bright-colored particularly to meet the demands, the commercial carpet that resilience is high, alternative expensive polyamide fibre BCF.
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
The specific embodiment
1. it is extraordinary with silk to design high resilience blast terylene BCF: line density is 1250dtex, and spinnerets is 60 holes, and the network joint is 25/meter, and bobbin weight is 5 kilograms.
2. the crystallizing bed preparatory crystallization of carrying out is passed through in ECDP modification section, crystallization temperature is 142 ℃ in advance.Carry out drying through drying chamber, baking temperature is 138 ℃, and be 8 hours drying time, and dew-point temperature is-60 ℃.
3. dry good ECDP (easy dyeing cationic polyester) modification section is added through accurate Weighing device, evenly is mixed into extruder melts.
Through extruder respectively distinguish heating-up temperature (℃) be 265,285,283,281,280, it is 283 ℃ that heating-up temperature is given birth in the road, ECDP modification section is melted, push and mixes, the melt of formation equilibrium.
5. melt is 0.4 M/S through the multifilament of composite special-shaped 60 hole spinnerets ejection microcellular structures through wind speed, and wind-warm syndrome is 210 ℃, and rheumatism is that the survey blowing of 70 % is cooled off, and forms spun filament.
6. be 1.0% according to the rate of oiling, oil through U-shaped and carry out two-sided interpolation spinning oil to spun filament.
7. adopt 1 heat feeding roller, 2 hot predraft rollers and 2 hot-stretch rollers, have the two-stage stretching that 5 hot-stretch rollers are formed, total drawing ratio is 5.0 times, and hot-stretch roller speed is 3000m/min, and heating-up temperature is 176 ℃.
8. deformation process is carried out in spinning: with the distortion case that has hot-air multifilament is carried out bulking and handle, clog bulking to fiber, form the high three-dimensional silk of the varicosity that curls (BCF) through the pressure-air of heating.Deformation temperature: 176 ℃; Distortion air pressure: 8bar; Negative pressure :-45mmbar.
9. from the high temperature silk of distortion case ejection, cool off through the cooler pan that rotates, the cooler pan rotating speed is 48rpm, and the multifilament after the bulking is adsorbed on the cooler pan, makes it more bulk.
10. multifilament is handled through knit a net network joint of network case, and compressed air pressure is 5 bar, and the network joint is 25/meter.
11. be wound on terylene BCF on the special-purpose paper tube through up-coiler, be wound into the yarn tube of cylindrical shape, winding speed is 3000m/min, yarn tube weight is 5.0kg.
Prepared multifunctional terylene BCF is extraordinary with silk according to the technological process of production of Fig. 1; According to " FZ/T54001-1991 METHOD FOR POLYPROPYLENE BCF " industry standard; And test according to the characteristics of terylene BCF, the line density deviation ratio is 0.30%, fracture strength is 2.10cN/dtex; Dye-uptake is high, 4.5 grades of colorfastness to rubbings.Woven carpet brightness is high, and bright-colored, rebound performance is good.
Claims (6)
1. one kind high resilience blast terylene BCF is extraordinary with silk, it is characterized in that its shape of cross section is the polymorphic structure that trilobal and triangle are formed.
2. the extraordinary preparation method with silk of high resilience blast terylene BCF as claimed in claim 1 is characterized in that may further comprise the steps:
1., with preparatory crystallization of easy dyeing cationic polyester section warp and drying;
2., add the extruder heat fused to through the metering mixing;
3., the spinnerets of the spinneret hole through being provided with composite special-shaped structure spray silk;
4., through the lateral blowing cooling;
5., oil through last oil nozzle is two-sided;
6., then carry out the two levels of thermal draw roll and stretch, through hot gas filling distortion;
7., cooler pan cooling;
8., get the network joint through Network device with compressed air;
9., be wound into the bobbin of cylindrical shape at last.
3. the extraordinary preparation method with silk of high resilience blast terylene BCF as claimed in claim 2, it is characterized in that: said step 3. spinnerets is provided with 50-90 spinneret hole.
4. like claim 2 or the extraordinary preparation method with silk of 3 described high resilience blast terylene BCFs, it is characterized in that: said step 3. spinneret hole shape of cross section is the composite special-shaped structure that trilobal and triangle are formed.
5. the extraordinary preparation method with silk of high resilience blast terylene BCF as claimed in claim 2 is characterized in that: 1. said step adds BIDA in the section of easy dyeing cationic polyester.
6. the extraordinary preparation method with silk of high resilience blast terylene BCF as claimed in claim 2 is characterized in that: said step 1. easy dyeing cationic polyester section adopts preparatory crystallization temperature to be lower than 145 ℃, and baking temperature is lower than 140 ℃.
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| CN2012102916969A CN102828263A (en) | 2012-08-16 | 2012-08-16 | High-resilience brightening polyester BCF (bulk continuous filament) yarn for special use and preparation method |
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| CN2012102916969A CN102828263A (en) | 2012-08-16 | 2012-08-16 | High-resilience brightening polyester BCF (bulk continuous filament) yarn for special use and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480554A (en) * | 2014-11-27 | 2015-04-01 | 青海喜马拉雅地毯有限公司 | High-wearability polypropylene fiber BCF (Bulk Continuous Filament) and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091065A (en) * | 1976-12-14 | 1978-05-23 | E. I. Du Pont De Nemours And Company | Melt spinning process |
| US4492731A (en) * | 1982-11-22 | 1985-01-08 | E. I. Du Pont De Nemours And Company | Trilobal filaments exhibiting high bulk and sparkle |
| CN101338455A (en) * | 2008-08-14 | 2009-01-07 | 浙江义乌金汇化纤有限公司 | Easy-to-dye terylene BCF and method for preparing same |
| CN101798712A (en) * | 2009-12-29 | 2010-08-11 | 中国纺织科学研究院 | Spinneret plate, profiled filament processed by utilizing same and preparation method thereof |
| CN101880927A (en) * | 2010-04-23 | 2010-11-10 | 江苏开利地毯股份有限公司 | Method for producing fine denier terylene BCF filaments and spinning plate |
-
2012
- 2012-08-16 CN CN2012102916969A patent/CN102828263A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091065A (en) * | 1976-12-14 | 1978-05-23 | E. I. Du Pont De Nemours And Company | Melt spinning process |
| US4492731A (en) * | 1982-11-22 | 1985-01-08 | E. I. Du Pont De Nemours And Company | Trilobal filaments exhibiting high bulk and sparkle |
| CN101338455A (en) * | 2008-08-14 | 2009-01-07 | 浙江义乌金汇化纤有限公司 | Easy-to-dye terylene BCF and method for preparing same |
| CN101798712A (en) * | 2009-12-29 | 2010-08-11 | 中国纺织科学研究院 | Spinneret plate, profiled filament processed by utilizing same and preparation method thereof |
| CN101880927A (en) * | 2010-04-23 | 2010-11-10 | 江苏开利地毯股份有限公司 | Method for producing fine denier terylene BCF filaments and spinning plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480554A (en) * | 2014-11-27 | 2015-04-01 | 青海喜马拉雅地毯有限公司 | High-wearability polypropylene fiber BCF (Bulk Continuous Filament) and preparation method thereof |
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Application publication date: 20121219 |