CN102978722B - Heavy-denier flat yarn continuous spinning process - Google Patents
Heavy-denier flat yarn continuous spinning process Download PDFInfo
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- CN102978722B CN102978722B CN201210534100.3A CN201210534100A CN102978722B CN 102978722 B CN102978722 B CN 102978722B CN 201210534100 A CN201210534100 A CN 201210534100A CN 102978722 B CN102978722 B CN 102978722B
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Abstract
The invention discloses a heavy-denier flat yarn continuous spinning process. The process comprises the following steps of viscose metering molding, washing, baking and rolling, drawing molded yarns onto a small processing roll and a big processing roll through a yarn guide rod, sequentially performing regenerating, washing, desulfurizing, Ph value-adjusting, oiling and baking processes on the yarns on the small processing roll and the big processing roll, and rolling the baked yarns on a winding head under the action of a yarn guide wheel, wherein before the yarns are drawn to the small processing roll and the big processing roll, acid liquid on the yarns is scraped in a foam acid-scraping way. Continuous spinning can be finished on one set of spinning equipment, the breakage is low, the occupation area of the equipment is small, the acid bath loss is low, the continuity is higher, spindle positions are not mutually affected, and the produced heavy-denier flat yarns are high in quality, the rate of finished products and yield.
Description
Technical field
The present invention relates to textile industry viscose production field, particularly relate to a kind of coarse denier flat filament continuous spinning process.
Background technology
The production technology of existing coarse denier flat filament all adds winding, washing system, drying plant with semi-continuous spinning machine and becomes cylinder device, adopt such production technology operation more, span between each equipment is larger, technological process is long, process fluctuation is large, second-rate between batch, easily broken end, yield is lower, cost is higher, labour intensity is comparatively large, production efficiency is low.In order to overcome above-mentioned defect, application number is 200910263475.9, publication date is the continuous spinning process that the Chinese invention patent application on July 14th, 2010 discloses for viscose coarse denier flat filament, comprise viscose glue measure and shape, washing, dry and become cylinder, viscose glue after metering reacts shaping strand in glass ware forming pipe, the shaping strand of glass ware forming Guan Guanzhong is drawn by the hold-down roller of multistage sink and carry out multistage washing to sink, the strand of multistage sink end is drawn to steam drying machine by hold-down roller, steam drying machine is dried strand, again the strand after oven dry is become cylinder.Multiple operation completes by this invention on a production line, and is optimized technique, reaches shortened process, reduces the object of technological fluctuation.But this invention also has the following disadvantages: former, washing facility, drying plant that 1, this invention is used are all independent equipment, also transport is provided with between each equipment, comparatively large across spacing between each equipment, makes production equipment floor space large.2, multistage sink is gone to wash because strand in this invention is out direct afterwards from glass ware forming pipe by pressure roller, the fiber cross section of flat filament is long-pending large, strand from glass ware forming pipe out after strand still with a large amount of acid baths, acid bath on the strand removal do not carried out to a certain degree directly enters sink afterwards and carries out washing rear discharge, causes the loss of acid bath higher; 3, strand from formed pipe out after by multistage sink hold-down roller draw to sink, carry out multistage washing.In process of production, the same time has a lot of ingot position to produce at the same time, when one of them ingot position occurs that sub-wire, broken end or leakage glue need to process, after spinning lifting head, strand out needs artificial drawing-off afterwards from glass ware forming pipe, draw single ingot strand and there is potential safety hazard through the hold-down roller rotated, misoperation also may affect the quality of other ingot position strands simultaneously.Owing to manually drawing the hold-down roller of single ingot strand through rotating, draft speed is slow, reduces the productive rate of viscose staple fibre.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of coarse denier flat filament continuous spinning process, the whole production process of this spinning technique can complete continuous spinning on a set of spinning equipment, end breakage rate is low, occupation area of equipment is little, acid bath loss is low, continuity is stronger, each ingot position is independent of each other, and the coarse denier flat filament quality produced is high, yield rate is high, and productive rate is high.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of coarse denier flat filament continuous spinning process, comprise viscose glue measure and shape, washing, dry and become cylinder, it is characterized in that: described viscose glue measure and shape comprises viscose glue metering, butterfly metre filter, spinning head spray silk and formed pipe shaping, described spinning head spray silk all contacts with acid bath with formed pipe is shaping, strand after formed pipe is shaping is towed on little treatment tube and large treatment tube through bar guide, strand completes regeneration successively on little treatment tube and large treatment tube, washing, desulfurization, adjustment pH value, oil, stoving process, again the strand after oven dry is completed into a technique through acting on winding head of godet roller, the mode that strand adopted foam to scrape acid before being towed on little treatment tube and large treatment tube scrapes off the acid solution on strand.
Be provided with spinnerets in described spinning head, spinnerets is made up of dull and stereotyped stainless steel, and the shape of its spray orifice is " one " font " or semicircular arc-shaped.
Acid solution in described acid bath comprises sulfuric acid, zinc sulfate and sodium sulphate, and its content is respectively 129 ~ 138g/l, 9 ~ 13g/l, 230 ~ 250g/l, and acid bath temperature is 50 ~ 60 DEG C, and single ingot acid bath internal circulating load is 1800 ~ 4000 ml/min.
The mode that described acid bath adopts single ingot side to enter acid enters acid.
Described formed pipe is UPVC formed pipe, and formed pipe internal diameter is 10 ~ 20mm, and length is 1.2 ~ 1.8 meters.
The diameter of described bar guide is 2 ~ 4mm.
Described godet roller diameter 10 ~ 20mm, it is 1.2 ~ 3mm that winding head seal wire chews diameter,
Described washing comprises 5 washing locations, and the 1st washing location is after coagulation washing, washing temperature 54 ~ 57 DEG C, and flow is 600 ~ 800 milliliters per minute;
2nd, 3,5 washing locations are washing, washing temperature 54 ~ 57 DEG C, and flow is 750 ~ 900 milliliters per minute;
4th washing location is weak lye washing, and wash temperature 50 ~ 57 DEG C, flow is 300 ~ 600 milliliters per minute, and concentration is 15 ~ 35%.
The foam that described foam scrapes acid employing is hard polyurethane foams.
The present invention compared with prior art has the following advantages:
1, viscose glue measure and shape, washing, oven dry owing to the present invention relates to are all complete on same set of equipment with becoming cylinder technique, little across spacing between all parts, fed distance is short, the floor space of the equipment that reduces of high degree, also shorten the molding time of coarse denier flat filament simultaneously, improve shaping efficiency.
2, the fiber cross section due to flat filament is long-pending large, strand from formed pipe out after strand still with a large amount of acid baths, acid bath on the strand removal do not carried out to a certain degree directly enters sink afterwards and carries out washing rear discharge, cause the loss of acid bath higher, and the mode that the strand of coarse denier flat filament of the present invention adopted foam to scrape acid before being towed on little treatment tube and large treatment tube scrapes off the acid solution on strand, so just can well prevent the loss of acid bath, reduce the manufacturing cost of coarse denier flat filament, also reduce the pollution to environment simultaneously.
3, spinnerets is provided with in spinning head, spinnerets is dull and stereotyped stainless steel, the shape of its spray orifice is " one " font or semicircular arc-shaped, and the spinnerets adopting dull and stereotyped stainless steel to make is not only acidproof but also alkaline-resisting, and the spray orifice of " one " font or semicircular arc-shaped can spray coarse denier flat filament.
4, the acid solution in acid bath comprises sulfuric acid, zinc sulfate and sodium sulphate, and its content is respectively 129 ~ 138g/l, 9 ~ 13g/l, 230 ~ 250g/l, and acid bath temperature is 50 ~ 60 DEG C, and single ingot acid bath internal circulating load is 1800 ~ 4000 ml/min.Because the specification of fiber is comparatively large, the viscose glue amount that the unit interval is sprayed by spinnerets is comparatively large, and yellow reduction reaction is complete to adopt such acid rain to guarantee.
5, acid bath enter sour mode adopt single ingot side enter acid mode enter acid.When adopting this kind to enter sour mode, in single ingot acid bath groove, enter acid, go out flow direction and the viscose glue of acid from spinnerets ejection and in acid bath groove the traffic direction of as-spun fibre consistent, minimizing resistance, guarantees the lateral length of fiber; If the mode adopting single ingot bottom surface to enter acid enters acid, the direction of motion entering acid becomes vertical direction with the direction of fiber, easily causes the change of fiber lateral length, impacts the use of downstream client.
The volume of described single ingot acid bath box is 1.5 ~ 2.5L.Advantage is: 1, guarantee that spinning head can normally be placed in single ingot acid bath box, ensures acid bath internal circulating load during reaction simultaneously, guarantees the dyeing of fiber.
6, formed pipe is UPVC formed pipe, and formed pipe internal diameter is 10 ~ 20mm, and length is 1.2 ~ 1.8 meters.Due to the lateral length of fiber, residual ester value is the important quality index evaluating product, when the internal diameter of formed pipe is 10 ~ 20mm, can guarantee fiber by time do not cause formed pipe to block, extend the reaction time of strand in formed pipe simultaneously, reduce residual ester value, thus ensure product quality.
7, the diameter of bar guide is 2 ~ 4mm, and the diameter of bar guide is within the scope of 2 ~ 4mm, and its as-spun fibre longitudinally friction is less, ensures the quality of subsequent product.
8, godet roller diameter 10 ~ 20mm, it is 1.2 ~ 3mm that winding head seal wire chews diameter, because the lateral length of strand is longer, after folding, strand is thicker, godet roller diameter is little, does not have the effect of seal wire, and the excessive strand that easily causes again skids off seal wire part, godet roller diameter, when 10 ~ 20mm, can complete seal wire technique.
9, washing comprises 5 washing positions, and the 1st washing position is after coagulation washing, washing temperature 54 ~ 57 DEG C, and flow is 600 ~ 800 milliliters per minute; 2nd, 3,5 washing locations are washing, washing temperature 54 ~ 57 DEG C, and flow is 750 ~ 900 milliliters per minute; 4th washing location is weak lye washing, and wash temperature 50 ~ 57 DEG C, flow is 300 ~ 600 milliliters per minute, and concentration is 15 ~ 35%.The major advantage of such layout washing process is, guarantees to adopt at short notice the mode of drip washing can be clear in the scope of quality requirement by the acid, sulfide etc. that the strand passed through adheres to.Many one weak base washings mainly in order to ensure the quality of washing, prevent because of wash not in place cause the residual acid of strand after cause the intensity of finished fiber to change.
10, foam scrapes acid for hard polyurethane foams, and adopting foam to scrape acid can blow off the residual acid on strand fast, and hard polyurethane foams top layer affinity is good, scrapes sour effective.
Detailed description of the invention
A kind of coarse denier flat filament continuous spinning process, comprise viscose glue measure and shape, washing, dry and become cylinder, it is characterized in that: described viscose glue measure and shape comprises viscose glue metering, butterfly metre filter, spinning head spray silk and formed pipe shaping, described spinning head spray silk all contacts with acid bath with formed pipe is shaping, strand after formed pipe is shaping is towed on little treatment tube and large treatment tube through bar guide, strand completes regeneration successively on little treatment tube and large treatment tube, washing, desulfurization, adjustment pH value, oil, stoving process, again the strand after oven dry is completed into a technique through acting on winding head of godet roller, the mode that strand adopted foam to scrape acid before being towed on little treatment tube and large treatment tube scrapes off the acid solution on strand.Because viscose glue measure and shape, washing, the oven dry that the present invention relates to are all complete on same set of equipment with becoming cylinder technique, little across spacing between all parts, fed distance is short, the floor space of the equipment that reduces of high degree, also shorten the molding time of coarse denier flat filament simultaneously, improve shaping efficiency.Fiber cross section due to flat filament is long-pending large, strand from formed pipe out after strand still with a large amount of acid baths, acid bath on the strand removal do not carried out to a certain degree directly enters sink afterwards and carries out washing rear discharge, cause the loss of acid bath higher, and the mode that the strand of coarse denier flat filament of the present invention adopted foam to scrape acid before being towed on little treatment tube and large treatment tube scrapes off the acid solution on strand, so just can well prevent the loss of acid bath, reduce the manufacturing cost of coarse denier flat filament, also reduce the pollution to environment simultaneously.
Spinnerets is provided with in spinning head, spinnerets is dull and stereotyped stainless steel, the shape of its spray orifice is " one " font or semicircular arc-shaped, and the spinnerets adopting dull and stereotyped stainless steel to make is not only acidproof but also alkaline-resisting, and the spray orifice of " one " font or semicircular arc-shaped can spray coarse denier flat filament.
Acid solution in acid bath comprises sulfuric acid, zinc sulfate and sodium sulphate, and its content is respectively 129 ~ 138g/l, 9 ~ 13g/l, 230 ~ 250g/l, and acid bath temperature is 50 ~ 60 DEG C, and single ingot acid bath internal circulating load is 1800 ~ 4000 ml/min.Because the specification of fiber is comparatively large, the viscose glue amount that the unit interval is sprayed by spinnerets is comparatively large, and yellow reduction reaction is complete to adopt such acid rain to guarantee.
Acid bath enter sour mode adopt single ingot side enter acid mode enter acid.When adopting this kind to enter sour mode, in single ingot acid bath groove, enter acid, go out flow direction and the viscose glue of acid from spinnerets ejection and in acid bath groove the traffic direction of as-spun fibre consistent, minimizing resistance, guarantees the lateral length of fiber; If the mode adopting single ingot bottom surface to enter acid enters acid, the direction of motion entering acid becomes vertical direction with the direction of fiber, easily causes the change of fiber lateral length, impacts the use of downstream client.
The volume of single ingot acid bath box is 1.5 ~ 2.5L.Guarantee that spinning head can normally be placed in single ingot acid bath box, ensure acid bath internal circulating load during reaction simultaneously, guarantee the dyeing of fiber.
Formed pipe is UPVC formed pipe, and formed pipe internal diameter is 10 ~ 20mm, and length is 1.2 ~ 1.8 meters.Due to the lateral length of fiber, residual ester value is the important quality index evaluating product, when the internal diameter of formed pipe is 10 ~ 20mm, can guarantee fiber by time do not cause formed pipe to block, extend the reaction time of strand in formed pipe simultaneously, reduce residual ester value, thus ensure product quality.
The diameter of bar guide is 2 ~ 4mm, and the diameter of bar guide is within the scope of 2 ~ 4mm, and its as-spun fibre longitudinally friction is less, ensures the quality of subsequent product.
Godet roller diameter 10 ~ 20mm, it is 1.2 ~ 3mm that winding head seal wire chews diameter, because the lateral length of strand is longer, after folding, strand is thicker, godet roller diameter is little, does not have the effect of seal wire, and the excessive strand that easily causes again skids off seal wire part, godet roller diameter, when 10 ~ 20mm, can complete seal wire technique.
Washing comprises 5 washing positions, and the 1st washing position is after coagulation washing, washing temperature 54 ~ 57 DEG C, and flow is 600 ~ 800 milliliters per minute; 2nd, 3,5 washing locations are washing, washing temperature 54 ~ 57 DEG C, and flow is 750 ~ 900 milliliters per minute; 4th washing location is weak lye washing, and wash temperature 50 ~ 57 DEG C, flow is 300 ~ 600 milliliters per minute, and concentration is 15 ~ 35%.The major advantage of such layout washing process is, guarantees to adopt at short notice the mode of drip washing can be clear in the scope of quality requirement by the acid, sulfide etc. that the strand passed through adheres to.Many one weak base washings mainly in order to ensure the quality of washing, prevent because of wash not in place cause the residual acid of strand after cause the intensity of finished fiber to change.
Foam scrapes acid for hard polyurethane foams, and adopting foam to scrape acid can blow off the residual acid on strand fast, and hard polyurethane foams top layer affinity is good, scrapes sour effective.
Claims (7)
1. a coarse denier flat filament continuous spinning process, comprises viscose glue measure and shape, washing, dry and become cylinder, it is characterized in that: described viscose glue measure and shape comprises viscose glue metering, butterfly metre filter, spinning head spray silk and formed pipe shaping, described spinning head spray silk all contacts with acid bath with formed pipe is shaping, and the strand after formed pipe is shaping is towed on little treatment tube and large treatment tube through bar guide, and strand completes regeneration successively on little treatment tube and large treatment tube, washing, desulfurization, adjustment pH value, oil, stoving process, again the strand after oven dry is completed into a technique through acting on winding head of godet roller, the mode that strand adopted foam to scrape acid before being towed on little treatment tube and large treatment tube scrapes off the acid solution on strand, and the acid solution in described acid bath comprises sulfuric acid, zinc sulfate and sodium sulphate, its content is respectively 129 ~ 138g/l, 9 ~ 13g/l, 230 ~ 250g/l, acid bath temperature is 50 ~ 60 DEG C, and single ingot acid bath internal circulating load is 1800 ~ 4000 ml/min, and the mode that described acid bath adopts single ingot side to enter acid enters acid.
2. a kind of coarse denier flat filament continuous spinning process according to claim 1, it is characterized in that: be provided with spinnerets in described spinning head, spinnerets is made up of dull and stereotyped stainless steel, and the shape of its spray orifice is " one " font " or semicircular arc-shaped.
3. a kind of coarse denier flat filament continuous spinning process according to claim 1, it is characterized in that: described formed pipe is UPVC formed pipe, formed pipe internal diameter is 10 ~ 20mm, and length is 1.2 ~ 1.8 meters.
4. a kind of coarse denier flat filament continuous spinning process according to claim 1, is characterized in that: the diameter of described bar guide is 2 ~ 4mm.
5. a kind of coarse denier flat filament continuous spinning process according to claim 1, it is characterized in that: described godet roller diameter 10 ~ 20mm, it is 1.2 ~ 3mm that winding head seal wire chews diameter.
6. a kind of coarse denier flat filament continuous spinning process according to claim 1, is characterized in that: described washing comprises 5 washing locations, and the 1st washing location is after coagulation washing, washing temperature 54 ~ 57 DEG C, and flow is 600 ~ 800 milliliters per minute;
2nd, 3,5 washing locations are washing, washing temperature 54 ~ 57 DEG C, and flow is 750 ~ 900 milliliters per minute;
4th washing location is weak lye washing, and wash temperature 50 ~ 57 DEG C, flow is 300 ~ 600 milliliters per minute, and concentration is 15 ~ 35%.
7. a kind of coarse denier flat filament continuous spinning process according to claim 1, is characterized in that: the foam that described foam scrapes acid employing is hard polyurethane foams.
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| CN201210534100.3A CN102978722B (en) | 2012-12-12 | 2012-12-12 | Heavy-denier flat yarn continuous spinning process |
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| CN103290495B (en) * | 2013-06-29 | 2015-07-01 | 宜宾海丝特纤维有限责任公司 | Spinning process of bamboo-like flat filaments produced by semi-continuous high-speed spinning machine |
| CN103628151B (en) * | 2013-12-02 | 2016-02-10 | 宜宾丝丽雅股份有限公司 | Production process of fluorescent whitening flat filament |
| CN103614797B (en) * | 2013-12-02 | 2015-07-01 | 宜宾丝丽雅股份有限公司 | High-speed spinning production method of flat yarn |
| CN103628162B (en) * | 2013-12-04 | 2016-05-25 | 宜宾丝丽雅集团有限公司 | Spinning process suitable for novel high-speed spinning machine with external winding device |
| CN103643328B (en) * | 2013-12-04 | 2016-01-20 | 宜宾丝丽雅集团有限公司 | Spinning technology of spinning machine with yarn twisting function |
| CN103643315B (en) * | 2013-12-04 | 2017-01-18 | 宜宾丝丽雅集团有限公司 | Spinning process suitable for high-speed spinning machine with external winding device |
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2012
- 2012-12-12 CN CN201210534100.3A patent/CN102978722B/en not_active Expired - Fee Related
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| DE3930652A1 (en) * | 1988-09-14 | 1990-03-22 | Kawasaki Heavy Ind Ltd | Continuous rayon filament mfr. - gives prim. drawing at spinning unit and filaments pass in parallel through remaining stages to winding |
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