CN112921419A - Production method and equipment of ultra-high strength chinlon 6 semi-dull filament - Google Patents
Production method and equipment of ultra-high strength chinlon 6 semi-dull filament Download PDFInfo
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- CN112921419A CN112921419A CN202110069071.7A CN202110069071A CN112921419A CN 112921419 A CN112921419 A CN 112921419A CN 202110069071 A CN202110069071 A CN 202110069071A CN 112921419 A CN112921419 A CN 112921419A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
Abstract
A production method and equipment of ultra-high strength chinlon 6 semi-dull filament yarn are disclosed, wherein conventional semi-dull slices in a storage bin are pumped into a feeding drying device, the slices are dried under the protection of nitrogen, and the dried slices are input into a screw extruder; the dried slices are melted by a screw extruder, and the melt is conveyed into a spinning manifold through a melt pipeline under the set head pressure; forming certain pump back pressure through a spinning assembly, spraying melt trickle from a spinneret plate of the spinning assembly, and cooling through a slow cooler and an elongated side-blowing cooling system to form nascent fiber; the super-strength nylon-6 semi-dull filament is generated after the primary fiber is sequentially subjected to oiling operation, pre-winding of a pre-interlacer and stretching and shaping of a plurality of rollers of three hot boxes. The invention utilizes the conventional slicing to produce the ultra-high strength nylon 6 semi-dull filament, has good spinnability and reduced production cost, and the product strength can reach more than 8.0cN/dtex, thereby achieving the same effect as high-viscosity slicing.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of spinning chemical fiber products, and particularly relates to a production method and equipment of ultra-high strength nylon 6 semi-dull filament.
[ background of the invention ]
The strength of the ultra-high strength nylon-6 filament is more than 8.0cN/dtex, when the filament is extended by 3%, the filament can be almost completely recovered, the wrinkle resistance exceeds that of other fibers, and the dimensional stability is good. Therefore, the fabric is firm and durable, and is wrinkle-resistant and easy-care.
The ultra-high strength nylon 6 filament used in the military requirement field and the industrial field is mainly a filament produced by high-viscosity slicing. The high-viscosity slicing is high in cost, the assembly is easy to boost in the spinning process due to overlarge viscosity, the assembly period is short, and the production cost is increased.
Therefore, how to provide a key technology and equipment for producing the ultra-high strength nylon 6 filament by using the conventional slices to realize stable pressure of components in the spinning process, good spinnability and production cost reduction becomes a problem to be solved urgently.
[ summary of the invention ]
One of the technical problems to be solved by the invention is to provide a method for producing an ultrahigh-strength nylon 6 semi-dull filament by using conventional slicing, so that the pressure of a component in the spinning process is stable, the spinnability is good, the production cost is reduced, the strength of the produced product can reach more than 8.0cN/dtex, and the effect of high-viscosity slicing is achieved.
The second technical problem to be solved by the invention is to provide equipment for producing the ultra-high strength nylon 6 semi-dull filament yarn by using conventional slicing, so that the pressure of components in the spinning process is stable, the spinnability is good, the production cost is reduced, the strength of the produced product can reach more than 8.0cN/dtex, and the same effect as high-viscosity slicing is achieved.
The invention is realized by the following steps:
a production method of ultra-high strength chinlon 6 semi-dull filament comprises the following steps:
step S1: pumping conventional semi-dull slices in a storage bin into a feeding drying device, drying the slices in the feeding drying device at 100 ℃ under the protection of nitrogen, and inputting the dried slices into a screw extruder;
step S2: the dried slices are melted by a screw extruder, and the melt is conveyed into a spinning manifold through a melt pipeline under the set head pressure;
step S3: a metering pump in a spinning box body stably conveys molten melt into a spinning assembly according to set metering, certain pump back pressure is formed after metal sand and non-woven fabrics of the spinning assembly are filtered, melt trickle is sprayed out of a spinneret plate of the spinning assembly, and nascent fiber is formed after cooling of a slow cooler and a lengthened lateral blowing cooling system;
step S4: the nascent fiber is input into a main network device for winding forming after sequentially carrying out oiling operation of an oiling system, pre-winding of a pre-network device and stretching and shaping of a plurality of rollers of three hot boxes, so as to generate the ultra-high strength nylon 6 semi-dull filament;
step S5: the ultra-high strength nylon 6 semi-dull filament yarn is wound into a spinning cake of the ultra-high strength nylon 6 semi-dull filament yarn through the yarn guide of the tension roller.
Further, the step S1 specifically includes:
pumping the spinning-grade chinlon 6 semi-dull slice with the relative viscosity of 2.48 +/-0.02 and the water content of not less than 400ppm and not more than 500ppm into a feeding drying device, drying the slice in the feeding drying device at the temperature of 100 ℃ under the protection of nitrogen, continuously inputting the slice into a screw extruder after drying for 16 hours, wherein the water content of the slice is not more than 200 ppm.
Further, the step S2 specifically includes:
the dried slices sequentially pass through a feeding section, a compression section and a metering section of a screw extruder, are melted at the temperature of 240-255 ℃, and the melted melt is fed into a metering pump in a spinning manifold through a melt distribution pipeline at the pressure of 120 bar.
Further, the step S3 specifically includes:
step S31: the metering pump stably conveys the molten melt into the spinning assembly according to the set metering;
step S32: after being filtered by the metal sand, the filter screen and the non-woven fabric of the spinning assembly, the melt forms a pump back pressure of 150bar in the assembly, and a melt trickle is sprayed out from a spinneret plate of the spinning assembly;
step S33: the melt trickle is pre-crystallized through a slow cooler, and is further crystallized through cooling of an elongated side-blowing cooling system to form primary fibers in the air, wherein a side-blowing window is 3m long, and residual monomer oligomers on the surfaces of the primary fibers are pumped away through negative pressure generated by circulating water.
Further, the step S4 specifically includes:
step S41: the oiling system performs uniform oiling operation on the nascent fiber, and the used oil agent is a high-temperature resistant oil agent;
step S42: blowing a rotating airflow with the pressure of 1KG to the oiled nascent fiber by the pre-interlacer to ensure that the oiling agent is uniformly attached to the surface of the nascent fiber;
step S43: after being wound by two cold rollers with the same speed, the nascent fiber is drawn to a hot roller of a first hot box at 165 ℃ for hot stretching and shaping;
step S44: the filaments drawn out from the first hot box are sent to a hot roller of a second hot box at 180 ℃ for further hot stretching and shaping;
step S45: the filaments drawn out by the second hot box are sent to a hot roller of a third hot box at the temperature of 200 ℃ for further hot stretching and shaping;
step S46: inputting the heat-set high-strength chinlon 6 semi-dull filament into a main network device, and increasing the cohesion through the network pressure of 4.6 KG.
Further, the step S5 specifically includes:
the ultra-high strength nylon 6 semi-dull filament yarn is wound into a spinning cake of the ultra-high strength nylon 6 semi-dull filament yarn through the yarn guide of the tension roller at the winding speed of a winding head of 4800 m/min.
The production equipment of the ultra-high strength nylon 6 semi-dull filament comprises: the device comprises a storage bin, feeding and drying equipment, a screw extruder, a spinning box body, a metering pump, a slow cooler, a side blowing window, a spinning channel, an oiling system, a cold roller group, a first hot box hot roller group, a second hot box hot roller group, a third hot box hot roller group, a main network device, a tension roller and a winding head;
the bin is arranged above the feeding and drying equipment; the feeding and drying equipment is connected with the screw extruder; the screw extruder is arranged above the spinning manifold; the metering pump is arranged in the spinning box body; the slow cooling device is arranged below the spinning box body; the side-blowing air window is arranged below the slow cooling device, and the spinning channel is arranged below the side-blowing air window; the oiling system is positioned below the spinning channel; the cold roller set is located below the oiling system, the first hot box hot roller set is connected to the cold roller set, the second hot box hot roller set is connected to the first hot box hot roller set, and the third hot box cold roller set is connected to the second hot box hot roller set; the main network device is positioned beside the third hot box hot roller group; the filament from the third hot box hot roll set is wound to the tension roll and then to the winding head.
The invention has the advantages that:
1. the conventional semi-dull slice is adopted, the feeding and drying equipment is additionally arranged to further dry the conventional semi-dull slice, the moisture of the conventional semi-dull slice is reduced, the moisture of the conventional semi-dull slice is less than or equal to 200ppm, the conventional semi-dull slice is used as a raw material for spinning, and a high-viscosity slice is not required to be used as the raw material, so that the problem of boosting of an assembly can be solved, the spinnability and the assembly period of a product are improved, the production cost is reduced, and the production.
2. The slow cooler at 230 ℃, the side blowing window with three meters in length, the side blowing temperature higher than 20 ℃ and the lower wind speed of 0.45m/s are all used for slowly cooling the melt sprayed from the spinneret plate to slowly crystallize the fiber, so that the melt can generate larger crystal nuclei in the crystallization process.
3. And the high-temperature resistant oil is used for protecting the stability of the fiber in three hot boxes and preventing the molecular structure of the fiber from being damaged by high temperature.
4. The three hot boxes are used for three-step high-temperature drawing and shaping, so that the orientation degree, the crystallinity degree and the crystal form transformation of the fiber are improved one by one, and the stability of crystal lattices is improved.
5. The strength index of the product produced by the method reaches above 8.0cN/dtex, and simultaneously the yarn evenness, boiling water shrinkage, network degree and oil content of the fiber all reach the downstream warping weaving requirement. The ultra-high strength chinlon 6 semi-dull filament can meet the requirement of military requirements and industrial fields on the strength thereof, and has wide market prospect and economic benefit.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a production process flow apparatus of the present invention.
FIG. 2 is a schematic flow diagram of the inventive method
Reference numerals: the device comprises a storage bin 1, a feeding drying device 2, a screw extruder 3, a spinning box 4, a metering pump 5, a slow cooler 6, a side blowing window 7, a spinning channel 8, an oiling system 9, a cold roll group 10, a first hot box hot roll group 11, a second hot box hot roll group 12, a third hot box hot roll group 13, a main network device 14, a tension roll 15 and a winding head 16.
[ detailed description ] embodiments
Referring to fig. 1, a production apparatus for ultra-high strength nylon 6 semi-dull filament comprises: the device comprises a storage bin 1, a feeding drying device 2, a screw extruder 3, a spinning box 4, a metering pump 5, a slow cooler 6, a side blowing window 7, a spinning channel 8, an oiling system 9, a cold roll group 10, a first hot box hot roll group 11, a second hot box hot roll group 12, a third hot box hot roll group 13, a main network device 14, a tension roll 15 and a winding head 16.
The stock bin 1 is arranged above the feeding and drying equipment 2; the feeding and drying equipment 2 is connected with a screw extruder 3; the screw extruder 3 is arranged above the spinning manifold 4; a metering pump 5 is arranged in the spinning box body 4; the slow cooler 6 is arranged below the spinning box 4; the side-blown air window 7 is arranged below the slow cooler 6, and a spinning channel 8 is arranged below the side-blown air window 7; the oiling system 9 is positioned below the spinning channel 8; the cold roller group 10 is positioned below the oiling system 9, the first hot box hot roller group 11 is connected to the cold roller group 10, the second hot box hot roller group 12 is connected to the first hot box cold roller group 11, and the third hot box cold roller group 13 is connected to the second hot box hot roller group 12; the main network device 14 is located beside the third hot box hot roll stack 13; the filament exiting the third hot box hot roll stack 13 is wound onto a tension roll 15 and then onto a take-up head 16.
As shown in FIG. 2, the production method of the production equipment of the ultra-high strength nylon 6 semi-dull filament (with the specification of 70D/12F) comprises the following steps:
step S1: pumping the spinning-grade chinlon 6 semi-dull slice with the relative viscosity of 2.48 +/-0.02 and the water content of 400ppm or more and 500ppm or less in a bin 1 into a feeding drying device 2, drying the slice in the feeding drying device 2 at the temperature of 100 ℃ under the protection of nitrogen, wherein the capacity of the feeding drying device 2 is 3 tons, so that the slice entering a screw extruder 3 can be dried for 16 hours in continuous production, the water content of the slice is 200ppm or less, the slice is protected by nitrogen to prevent the slice from being oxidized due to high temperature, and then the dried slice is continuously input into the screw extruder 3;
step S2: the dried slices are sequentially heated and melted through a feeding section, a compression section and a metering section of a screw extruder 3, and the melted melt is sent to a metering pump 5 in a spinning manifold 4 through a melt distribution pipeline under the pressure of 120bar, wherein the temperature ranges of all the zones of the screw extruder 3 are 240 ℃, 245 ℃, 250, 252 and 255 ℃;
step S3, specifically including:
step S31: the metering pump 5 stably conveys the molten melt into the spinning assembly according to the set metering, and the rotating speed of the metering pump 5 is 22.5 rpm;
step S32: after being filtered by the metal sand, the filter screen and the non-woven fabric of the spinning assembly, the melt forms a pump back pressure of 150bar in the assembly, and a melt trickle is sprayed out from a spinneret plate of the spinning assembly; the ratio of coarse sand to fine sand of the metal sand in the spinning assembly is 1:2, the coarse sand size is 60-80 meshes, and the fine sand size is 80-100 meshes; the non-woven fabric is 15 mu;
step S33: the melt trickle is pre-crystallized through a slow cooler 6 at 230 ℃, and then is further crystallized through cooling of a cooling system of a lengthened side blowing window 7, wherein the length of the side blowing window 7 is three meters, the side blowing temperature is 20 ℃, the wind speed is 80 percent, and the wind speed is 0.45m/s, so that primary fibers are formed in the air, and residual monomer oligomers on the surfaces of the primary fibers are pumped away through negative pressure generated by circulating water; a slow cooler 6 at 230 ℃, a side blowing window 7 with three meters in length and a side blowing temperature higher than 20 ℃ are used, and the lower wind speed of 0.45m/s is used for slowly cooling the melt sprayed out from the spinneret plate to slowly crystallize the fiber, so that the melt can generate larger crystal nuclei in the crystallization process; if cooling is too fast, a large number of small nuclei are produced; thus, through the cooling process, the primary fiber with larger crystal nucleus is formed;
step S4, specifically including:
step S41: the oiling system 9 is used for carrying out uniform oiling operation on the nascent fiber, the used oiling agent is a high-temperature-resistant oiling agent which is used for protecting the stability of the fiber in three hot boxes and preventing the molecular structure of the fiber from being damaged by high temperature; in addition, the oiling can increase the cohesive force of the nascent fiber, is beneficial to bundling of the fiber, reduces the friction force among fiber bundles in the subsequent stretching process, and reduces the generation of abnormal conditions such as static electricity, broken fibers, floating fibers, broken fibers and the like;
step S42: blowing a rotating airflow with the pressure of 1KG to the oiled nascent fiber by the pre-interlacer to ensure that the oiling agent is uniformly attached to the surface of the nascent fiber;
step S43: after being wound by two cold roller sets 10 with the same speed, the nascent fiber is drawn to a first hot box hot roller set 11 at 165 ℃ for hot drawing and shaping; the rotating speed of the cold roll is 1020m/min, the rotating speed of the first hot box and hot roll set 11 is 1224m/min, the drawing ratio is 1.2, the orientation degree of the fiber is improved through the first-step pre-drawing, the crystal nucleus is further enlarged, and the crystallinity is improved;
step S44: the filaments drawn out from the first hot box are sent to a hot roller of a second hot box at 180 ℃ for further hot stretching and shaping; the rotating speed of a second hot box hot roller is 2203m/min, the drawing ratio is 1.8, and the crystallinity of the fiber is further improved by the drawing and shaping in the second step;
step S45: the filaments drawn by the second hot box are sent to a third hot box hot roller group 13 at 200 ℃ for further hot stretching and shaping, the rotating speed of a third hot box hot roller is 4870m/min, the stretching ratio is 2.21, the three-step stretching and shaping enables the gamma crystal form in the polyamide 6 fiber to be converted into the alpha crystal form, the crystal lattice structure of the alpha crystal form is more stable than that of the gamma crystal form, and the density is relatively higher, so that the strength of the fiber can be improved;
step S46: inputting the heat-set high-strength chinlon 6 semi-dull filament into a main network device 14, and increasing the cohesion through the network pressure of 4.6 KG; the network degree of the 1 m filaments is 10, thus providing a prerequisite condition for the subsequent warping and weaving processing;
step S5: the ultra-high strength nylon 6 semi-dull filament yarn passes through the yarn guide of the tension roller 15, and is packaged into a spinning cake of the ultra-high strength nylon 6 semi-dull filament yarn at the winding speed of a winding head 16 of 4800m/min, and the total stretching ratio reaches 4.77.
The specification is 70D/12F, and the physical indexes of the ultra-high strength chinlon 6 semi-dull filament are shown in Table 1:
table 1:
| tensile strength | Elongation at break | Unevenness of evenness | Shrinkage in boiling water | Network degree | Oil content |
| 8.76cN/dtex | 21.2％ | 1.02％ | 8％ | 10 are provided with | 1.62％ |
The 70D/12F and ultra-high strength nylon 6 semi-dull filament is produced by using high viscosity and conventional slices, and the comparative analysis of the production cost per ton is shown in the table 2:
table 2:
as can be seen from the table 2, the ultrahigh-strength nylon 6 semi-dull filament yarn is produced by using the conventional slicing process and equipment, the cost of electricity per ton is 250 yuan higher than that of the high-viscosity slicing process and equipment due to the addition of the feeding and drying equipment and the third hot box, but the cost of a single ton of the conventional slicing process is 3000 yuan lower than that of the high-viscosity slicing process, and the assembly period is 3 times that of the high-viscosity slicing process, so that the production cost can be reduced and the production efficiency is improved when the ultrahigh-strength nylon 6 semi-dull filament yarn is produced by using the conventional slicing process and equipment.
The invention achieves the purpose of producing the ultra-high strength chinlon 6 semi-dull filament by utilizing conventional slicing through four main steps. The feeding and drying equipment is added to further dry the conventional semi-dull slices, so that the moisture of the slices is reduced, the moisture of the slices is less than or equal to 200ppm, the slices are used as raw materials for spinning, the high-viscosity slices are not needed to be used as the raw materials, the problem of boosting of components can be solved, the spinnability and the component period of products are improved, the production cost is reduced, and the production efficiency is improved. Secondly, a slow cooler at 230 ℃, a side blowing window with the length of 3 meters, a side blowing temperature higher than 20 ℃ and a lower wind speed of 0.45m/s are used for slowly cooling the melt sprayed from the spinneret plate to slowly crystallize the fiber, so that the melt can generate larger crystal nuclei in the crystallization process. And thirdly, using high-temperature resistant oil to protect the stability of the fiber in three heat boxes and prevent the molecular structure of the fiber from being damaged by high temperature. And fourthly, through three-step high-temperature drawing and shaping of the three hot boxes, the orientation degree, the crystallinity and the crystal form conversion of the fibers are improved one by one to improve the stability of crystal lattices. Through the equipment and the process, the strength index of the produced product reaches more than 8.0cN/dtex, and simultaneously the yarn evenness, boiling water shrinkage, network degree and oil content of the fiber all reach the downstream warping weaving requirement. The ultra-high strength chinlon 6 semi-dull filament can meet the requirement of military requirements and industrial fields on the strength thereof, and has wide market prospect and economic benefit.
The above description is only an example of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A production method of ultra-high strength chinlon 6 semi-dull filament yarn is characterized in that: the method comprises the following steps:
step S1: pumping conventional semi-dull slices in a storage bin into a feeding drying device, drying the slices in the feeding drying device at 100 ℃ under the protection of nitrogen, and inputting the dried slices into a screw extruder;
step S2: the dried slices are melted by a screw extruder, and the melt is conveyed into a spinning manifold through a melt pipeline under the set head pressure;
step S3: a metering pump in a spinning box body stably conveys molten melt into a spinning assembly according to set metering, certain pump back pressure is formed after metal sand and non-woven fabrics of the spinning assembly are filtered, melt trickle is sprayed out of a spinneret plate of the spinning assembly, and nascent fiber is formed after cooling of a slow cooler and a lengthened lateral blowing cooling system;
step S4: the nascent fiber is input into a main network device for winding forming after sequentially carrying out oiling operation of an oiling system, pre-winding of a pre-network device and stretching and shaping of a plurality of rollers of three hot boxes, so as to generate the ultra-high strength nylon 6 semi-dull filament;
step S5: the ultra-high strength nylon 6 semi-dull filament yarn is wound into a spinning cake of the ultra-high strength nylon 6 semi-dull filament yarn through the yarn guide of the tension roller.
2. The method for producing the ultra-high strength nylon 6 semi-dull filament yarn as claimed in claim 1, wherein:
the step S1 specifically includes:
pumping the spinning-grade chinlon 6 semi-dull slice with the relative viscosity of 2.48 +/-0.02 and the water content of not less than 400ppm and not more than 500ppm into a feeding drying device, drying the slice in the feeding drying device at the temperature of 100 ℃ under the protection of nitrogen, continuously inputting the slice into a screw extruder after drying for 16 hours, wherein the water content of the slice is not more than 200 ppm.
3. The method for producing the ultra-high strength nylon 6 semi-dull filament yarn as claimed in claim 1, wherein:
the step S2 specifically includes:
the dried slices sequentially pass through a feeding section, a compression section and a metering section of a screw extruder, are melted at the temperature of 240-255 ℃, and the melted melt is fed into a metering pump in a spinning manifold through a melt distribution pipeline at the pressure of 120 bar.
4. The method for producing the ultra-high strength nylon 6 semi-dull filament yarn as claimed in claim 1, wherein:
the step S3 specifically includes:
step S31: the metering pump stably conveys the molten melt into the spinning assembly according to the set metering;
step S32: after being filtered by the metal sand, the filter screen and the non-woven fabric of the spinning assembly, the melt forms a pump back pressure of 150bar in the assembly, and a melt trickle is sprayed out from a spinneret plate of the spinning assembly;
step S33: the melt trickle is pre-crystallized through a slow cooler, and is further crystallized through cooling of an elongated side-blowing cooling system to form primary fibers in the air, wherein a side-blowing window is 3m long, and residual monomer oligomers on the surfaces of the primary fibers are pumped away through negative pressure generated by circulating water.
5. The method for producing the ultra-high strength nylon 6 semi-dull filament yarn as claimed in claim 1, wherein:
the step S4 specifically includes:
step S41: the oiling system performs uniform oiling operation on the nascent fiber, and the used oil agent is a high-temperature resistant oil agent;
step S42: blowing a rotating airflow with the pressure of 1KG to the oiled nascent fiber by the pre-interlacer to ensure that the oiling agent is uniformly attached to the surface of the nascent fiber;
step S43: after being wound by two cold rollers with the same speed, the nascent fiber is drawn to a hot roller of a first hot box at 165 ℃ for hot stretching and shaping;
step S44: the filaments drawn out from the first hot box are sent to a hot roller of a second hot box at 180 ℃ for further hot stretching and shaping;
step S45: the filaments drawn out by the second hot box are sent to a hot roller of a third hot box at the temperature of 200 ℃ for further hot stretching and shaping;
step S46: inputting the heat-set high-strength chinlon 6 semi-dull filament into a main network device, and increasing the cohesion through the network pressure of 4.6 KG.
6. The method for producing the ultra-high strength nylon 6 semi-dull filament yarn as claimed in claim 1, wherein:
the step S5 specifically includes:
the ultra-high strength nylon 6 semi-dull filament yarn passes through the filament guide of the filament guide disc and is packaged into a spinning cake of the ultra-high strength nylon 6 semi-dull filament yarn at a winding speed of a winding head of 4800 m/min.
7. The production equipment of the ultra-high strength nylon 6 semi-dull filament yarn is characterized in that: the method comprises the following steps: the device comprises a storage bin, feeding and drying equipment, a screw extruder, a spinning box body, a metering pump, a slow cooler, a side blowing window, a spinning channel, an oiling system, a cold roller group, a first hot box hot roller group, a second hot box hot roller group, a third hot box hot roller group, a main network device, a tension roller and a winding head;
the bin is arranged above the feeding and drying equipment; the feeding and drying equipment is connected with the screw extruder; the screw extruder is arranged above the spinning manifold; the metering pump is arranged in the spinning box body; the slow cooling device is arranged below the spinning box body; the side-blowing air window is arranged below the slow cooling device, and the spinning channel is arranged below the side-blowing air window; the oiling system is positioned below the spinning channel; the cold roller set is located below the oiling system, the first hot box hot roller set is connected to the cold roller set, the second hot box hot roller set is connected to the first hot box hot roller set, and the third hot box cold roller set is connected to the second hot box hot roller set; the main network device is positioned beside the third hot box hot roller group; the filament from the third hot box hot roll set is wound to the tension roll and then to the winding head.
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| CN114318564A (en) * | 2022-01-04 | 2022-04-12 | 闽江学院 | Synthetic fiber processing technology and processing device thereof |
| CN115142147A (en) * | 2022-07-26 | 2022-10-04 | 河南神马锦纶科技有限公司 | Production method of high-strength nylon 6 filament |
| CN115323511A (en) * | 2022-09-01 | 2022-11-11 | 福建新创锦纶实业有限公司 | Preparation system and method of high-strength low-tensile polyamide-6 fiber |
| CN115371381A (en) * | 2022-08-16 | 2022-11-22 | 福建新创锦纶实业有限公司 | Nylon 6FDY semi-dull skintone yarn production equipment and method |
| WO2023087650A1 (en) * | 2021-11-19 | 2023-05-25 | 平顶山神马帘子布发展有限公司 | Production method for high-strength and high-modulus nylon 66 industrial filament |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000212824A (en) * | 1999-01-11 | 2000-08-02 | Teijin Ltd | Melt spinning apparatus for synthetic fiber |
| CN102181951A (en) * | 2011-04-26 | 2011-09-14 | 常熟涤纶有限公司 | Processing method of high-strength low-shrinkage nylon 6 fine denier filament |
| CN104695033A (en) * | 2015-03-19 | 2015-06-10 | 泉州天宇化纤织造实业有限公司 | Production process of nylon-6 coarse-denier high-strength yarns |
| CN107043958A (en) * | 2017-05-10 | 2017-08-15 | 海安县华荣化纤有限公司 | The production technology of the semi-dull high strength yarn of 70D/24F polyamide fibres 6 |
| CN109023566A (en) * | 2018-07-30 | 2018-12-18 | 江苏百利达股份有限公司 | A kind of preparation method of high intensity 66 long filament of high-shrinkage polyamide |
| CN110129914A (en) * | 2019-05-27 | 2019-08-16 | 北京中丽制机工程技术有限公司 | A kind of production method of the female silk fiber of polyamide fibre 6 |
| CN111218723A (en) * | 2020-01-10 | 2020-06-02 | 长乐力恒锦纶科技有限公司 | Production method of chinlon 6FDY semi-dull skintone yarn |
-
2021
- 2021-01-19 CN CN202110069071.7A patent/CN112921419A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000212824A (en) * | 1999-01-11 | 2000-08-02 | Teijin Ltd | Melt spinning apparatus for synthetic fiber |
| CN102181951A (en) * | 2011-04-26 | 2011-09-14 | 常熟涤纶有限公司 | Processing method of high-strength low-shrinkage nylon 6 fine denier filament |
| CN104695033A (en) * | 2015-03-19 | 2015-06-10 | 泉州天宇化纤织造实业有限公司 | Production process of nylon-6 coarse-denier high-strength yarns |
| CN107043958A (en) * | 2017-05-10 | 2017-08-15 | 海安县华荣化纤有限公司 | The production technology of the semi-dull high strength yarn of 70D/24F polyamide fibres 6 |
| CN109023566A (en) * | 2018-07-30 | 2018-12-18 | 江苏百利达股份有限公司 | A kind of preparation method of high intensity 66 long filament of high-shrinkage polyamide |
| CN110129914A (en) * | 2019-05-27 | 2019-08-16 | 北京中丽制机工程技术有限公司 | A kind of production method of the female silk fiber of polyamide fibre 6 |
| CN111218723A (en) * | 2020-01-10 | 2020-06-02 | 长乐力恒锦纶科技有限公司 | Production method of chinlon 6FDY semi-dull skintone yarn |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087650A1 (en) * | 2021-11-19 | 2023-05-25 | 平顶山神马帘子布发展有限公司 | Production method for high-strength and high-modulus nylon 66 industrial filament |
| CN114318564A (en) * | 2022-01-04 | 2022-04-12 | 闽江学院 | Synthetic fiber processing technology and processing device thereof |
| CN115142147A (en) * | 2022-07-26 | 2022-10-04 | 河南神马锦纶科技有限公司 | Production method of high-strength nylon 6 filament |
| CN115142147B (en) * | 2022-07-26 | 2023-09-22 | 河南神马锦纶科技有限公司 | Production method of high-strength nylon 6 filaments |
| CN115371381A (en) * | 2022-08-16 | 2022-11-22 | 福建新创锦纶实业有限公司 | Nylon 6FDY semi-dull skintone yarn production equipment and method |
| CN115371381B (en) * | 2022-08-16 | 2023-09-15 | 福建新创锦纶实业有限公司 | Production equipment and method for nylon 6FDY semi-dull skin color yarn |
| CN115323511A (en) * | 2022-09-01 | 2022-11-11 | 福建新创锦纶实业有限公司 | Preparation system and method of high-strength low-tensile polyamide-6 fiber |
| CN115323511B (en) * | 2022-09-01 | 2024-04-05 | 福建新创锦纶实业有限公司 | Preparation system and method for high-strength low-tensile nylon 6 fiber |
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