CN114541001A - Production process and production equipment for degradable high-low-melting-point high-elastic-sheath-core fibers - Google Patents
Production process and production equipment for degradable high-low-melting-point high-elastic-sheath-core fibers Download PDFInfo
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- CN114541001A CN114541001A CN202210259433.3A CN202210259433A CN114541001A CN 114541001 A CN114541001 A CN 114541001A CN 202210259433 A CN202210259433 A CN 202210259433A CN 114541001 A CN114541001 A CN 114541001A
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- 239000000835 fiber Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000007664 blowing Methods 0.000 claims abstract description 71
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 238000009987 spinning Methods 0.000 claims abstract description 52
- 238000002844 melting Methods 0.000 claims abstract description 33
- 230000008018 melting Effects 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 229920000728 polyester Polymers 0.000 claims abstract description 20
- 239000012792 core layer Substances 0.000 claims abstract description 13
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000009423 ventilation Methods 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000000222 aromatherapy Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/004—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties
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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
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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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/12—Physical properties biodegradable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a production process and production equipment for degradable high-low melting point high-elastic-sheath-core fibers, which comprises the following steps: taking PET polyester chips as a core layer raw material and taking low-melting-point polyester chips as a skin layer raw material; respectively drying and extruding the two raw materials, adding the degradation master batch, conveying the mixture into a spinning manifold, and further uniformly distributing the mixture into a composite spinning assembly of the spinning manifold; injecting two groups of raw material components into a sheath-core spinneret plate through a metering pump metering melt pipeline in a spinning manifold to be compounded, spraying fibers with a sheath-core structure, and performing blowing, cooling, oiling and winding treatment to obtain degradable high-low melting point sheath-core fibers P0Y fibers; fifthly, feeding the degradable high-low melting point sheath-core fiber P0Y fiber to an elasticizer for elasticizing. The invention is more environment-friendly, improves the cooling efficiency, reduces the occupied space and reduces the cost.
Description
Technical Field
The invention relates to a fiber, in particular to a production process and production equipment of a degradable high-low melting point high-elastic-sheath-core fiber.
Background
The conventional filter cotton stick, the water, oil and ink storage cotton core, the water and ink guide cotton core, the special fiber pen point bar, the perfume aromatherapy fiber stick, the liquid mosquito-repellent incense volatilization stick, the cigarette filter and the like are generally made of common DTY fibers, glue is coated on the outer surfaces of the DTY fibers, and then the DTY fibers are heated and dried by a hot box and pulled out of a mold. In the mode, the production cost is higher, the pungent smell of the glue exists, the production speed is slow, and the labor intensity of operators is high.
When the high-elasticity sheath-core fiber is adopted, the quality is not good enough in the production process, and the fiber cannot be degraded and is not environment-friendly enough. Meanwhile, in the production process, when cooling is needed, the air cooling is generally performed by conventional air blowing, but when the air blowing is performed, the air blowing area is smaller, the efficiency is lower, and if the air cooling length is prolonged, the cost is higher.
Disclosure of Invention
The invention aims to provide a production process and production equipment for degradable high-low melting point high-elastic-sheath-core fibers.
In order to achieve the purpose, the invention adopts the technical scheme that: a production process of degradable high-low melting point high elastic sheath core fiber comprises the following steps:
taking PET polyester chips as a core layer raw material and taking low-melting-point polyester chips as a skin layer raw material;
secondly, the core layer raw material is crystallized and dried and then enters a first screw extruder, the core layer raw material is melted and extruded by the first screw extruder to form a polyester solution capable of being spun, and the polyester solution is conveyed into a spinning box body and further uniformly distributed into a composite spinning assembly of the spinning box body to serve as a first component;
thirdly, the cortex raw material is crystallized and dried and then enters a second screw extruder, the melt extrusion of the second screw extruder is carried out to obtain a low-melting-point polyester solution which can be spun, and the low-melting-point polyester solution is conveyed into a spinning box body and further uniformly distributed into a composite spinning assembly of the spinning box body to be used as a second component;
injecting the first component and the second component into a sheath-core spinneret plate through a metering pump metering melt pipeline in a spinning manifold to be compounded, spraying fibers with a sheath-core structure, and performing blowing, cooling, oiling and winding treatment to obtain degradable sheath-core fibers P0Y with high and low melting points;
feeding the degradable high-low melting point sheath-core fiber P0Y fiber to an elasticizer, heating by a hot box of the elasticizer, and carrying out double-twisting and elastic compounding to form the degradable high-low melting point sheath-core fiber;
in the second step and the third step, 3% of degradable master batch by weight is added at the feeding ports of the first screw extruder and the second screw extruder respectively through a master batch machine.
In the technical scheme, in the step, the ratio of the first component to the second component is 1: 1-2: 1.
in the technical scheme, in the fifth step, in the elasticizing process, the drawing multiple is 1.75-1.85 times, DY is 1.68, and the temperature of a hot box is 150 ℃.
In the technical scheme, the intrinsic viscosity of the core layer raw material is 262 ℃ of melting point of 0.64dl/g, and the intrinsic viscosity of the skin layer raw material is 170 ℃ of melting point of 0.701 dl/g.
In order to achieve the purpose, the invention adopts production equipment for applying the production process of the degradable high-low melting point and high-elastic sheath core fiber, which is disclosed by the invention, as claimed in claim 1, and comprises a box body and cooling mechanisms arranged in the box body, wherein a cavity is arranged inside the box body, a feed inlet and a discharge outlet are respectively arranged on the left side and the right side of the box body, the feed inlet and the discharge outlet are communicated with the cavity, the number of the cooling mechanisms is two, and the two groups of the cooling mechanisms are respectively arranged close to the feed inlet and the discharge outlet;
the cooling mechanism comprises a connecting plate, an upper blowing pipe and a lower blowing pipe, the rear ends of the upper blowing pipe and the lower blowing pipe are respectively arranged at the top and the bottom of the connecting plate, the upper blowing pipe is arranged above the lower blowing pipe in the left direction, and the middle of the connecting plate is connected with the box body through a connecting rod;
the rear ends of the upper blowing pipe and the lower blowing pipe are respectively connected with an air supply pipe, an upper ventilation cavity is arranged in the upper blowing pipe, a lower ventilation cavity is arranged in the lower blowing pipe, and the upper ventilation cavity and the lower ventilation cavity are respectively communicated with the corresponding air supply pipe; the bottom outer edge surface of the upper blowing pipe is provided with a top strip-shaped air supply channel, the top outer edge surface of the lower blowing pipe is provided with a bottom strip-shaped air supply channel, the top strip-shaped air supply channel is communicated with the upper ventilation cavity, and the bottom strip-shaped air supply channel is communicated with the lower ventilation cavity.
Among the above-mentioned technical scheme, cooling body includes left side cooling body and right side cooling body, the middle part of box is equipped with a baffle, the baffle will the cavity partition is left side cavity and right side cavity, left side cooling body set up in the left side cavity, right side cooling body set up in the right side cavity, the middle part of baffle is equipped with a logical groove, the through-hole will left side cavity and right side cavity are linked together, it is just right to lead to the groove feed inlet and discharge gate setting.
In the technical scheme, a plurality of groups of left ventilation grooves and a plurality of groups of right ventilation grooves are formed in the front side wall of the box body, the left ventilation grooves are communicated with the left cavity, and the right ventilation grooves are communicated with the right cavity.
In the technical scheme, the connecting rods are rotatably connected with the box body, a connecting rod is arranged on the rear side of the top of the connecting plate, an arc-shaped groove is formed in the box body beside each group of connecting rods, the arc-shaped grooves are coaxially arranged corresponding to the connecting rods, the front ends of the arc-shaped grooves are communicated with the cavity, the rear ends of the arc-shaped grooves are communicated with the rear side surface of the box body, and the rear ends of each group of connecting rods penetrate through the corresponding arc-shaped grooves and are arranged outside the rear side of the box body; and the outer edge surface of the rear end of each group of connecting rods is in threaded connection with a butterfly nut, and the front end surface of the butterfly nut abuts against the rear side surface of the box body.
In the technical scheme, the upper blowing pipe and the lower blowing pipe are rotationally connected with the connecting plate, the front end of the upper blowing pipe is connected with a top balancing weight, and the balancing weight is arranged on the front side of the top strip-shaped air supply channel; the front end of the lower blowing pipe is connected with a bottom balancing weight, and the bottom balancing weight is arranged below the front side of the bottom strip-shaped air supply channel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the product produced by the process can be degraded and is more environment-friendly;
2. according to the invention, two groups of cooling mechanisms are arranged in the box body, so that the cooling efficiency can be increased, the cooling cost can be reduced, and the product quality can be ensured.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the case of FIG. 1 (with the front side wall of the case removed);
FIG. 3 is a schematic cross-sectional view of FIG. 2;
fig. 4 is a schematic view of the cooling mechanism of fig. 3.
Wherein: 1. a box body; 2. a cavity; 3. a feed inlet; 4. a discharge port; 5. a connecting plate; 6. an upper blowpipe; 7. a lower blowpipe; 8. a connecting rod; 9. an upper vent lumen; 10. a lower vent lumen; 11. a top strip-shaped air supply channel; 12. a bottom strip-shaped air supply channel; 13. a left side cooling mechanism; 14. a right side cooling mechanism; 15. a partition plate; 16. a left cavity; 17. a right cavity; 18. a through groove; 19. a left ventilation slot; 20. a right ventilation slot; 21. a connecting rod; 22. an arc-shaped slot; 23. a butterfly nut; 24. a top counterweight block; 25. a bottom counterweight block.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: a production process of degradable high-low melting point high elastic sheath core fiber comprises the following steps:
taking PET polyester chips as a core layer raw material and taking low-melting-point polyester chips as a skin layer raw material;
secondly, the core layer raw material is crystallized and dried and then enters a first screw extruder, the core layer raw material is melted and extruded by the first screw extruder to form a polyester solution capable of being spun, and the polyester solution is conveyed into a spinning box body and further uniformly distributed into a composite spinning assembly of the spinning box body to serve as a first component;
thirdly, the cortex raw material is crystallized and dried and then enters a second screw extruder, the melt extrusion of the second screw extruder is carried out to obtain a low-melting-point polyester solution which can be spun, and the low-melting-point polyester solution is conveyed into a spinning box body and further uniformly distributed into a composite spinning assembly of the spinning box body to be used as a second component;
injecting the first component and the second component into a sheath-core spinneret plate through a metering pump metering melt pipeline in a spinning manifold to be compounded, spraying fibers with a sheath-core structure, and performing blowing, cooling, oiling and winding treatment to obtain degradable sheath-core fibers P0Y with high and low melting points;
feeding the degradable high-low melting point sheath-core fiber P0Y into an elasticizer, heating the fiber by a hot box of the elasticizer, and performing double-twisting-direction elasticizing compounding to form the degradable high-low melting point sheath-core fiber;
in the second step and the third step, 3% of degradable master batch by weight is added at the feeding ports of the first screw extruder and the second screw extruder respectively through a master batch machine.
In this embodiment, through degrading the master batch, like this after not using, can realize the degradable function, more environmental protection.
In the step, the proportion of the first component to the second component is 1: 1-2: 1.
in the fifth step, in the elasticizing process, the drafting multiple is 1.75-1.85 times, DY ratio is 1.68, and the temperature of a hot box is 150 ℃.
The intrinsic viscosity of the core layer raw material is 0.64dl/g melting point 262 ℃, and the intrinsic viscosity of the skin layer raw material is 0.701dl/g melting point 170 ℃.
Referring to fig. 1-4, in order to achieve the above purpose, the invention adopts a production device capable of degrading high-low melting point and high elastic sheath core fiber, which comprises a box body 1 and cooling mechanisms arranged in the box body, wherein a cavity 2 is arranged in the box body, a feed inlet 3 and a discharge outlet 4 are respectively arranged on the left side and the right side of the box body, the feed inlets and the discharge outlets are communicated with the cavity, the number of the cooling mechanisms is two, and the two groups of the cooling mechanisms are respectively arranged close to the feed inlet and the discharge outlet;
the cooling mechanism comprises a connecting plate 5, an upper blowing pipe 6 and a lower blowing pipe 7, the rear ends of the upper blowing pipe and the lower blowing pipe are respectively arranged at the top and the bottom of the connecting plate, the upper blowing pipe is arranged above the lower blowing pipe in the left direction, and the middle part of the connecting plate is connected with the box body through a connecting rod 8;
the rear ends of the upper blowing pipe and the lower blowing pipe are respectively connected with an air supply pipe, an upper ventilation cavity 9 is arranged in the upper blowing pipe, a lower ventilation cavity 10 is arranged in the lower blowing pipe, and the upper ventilation cavity and the lower ventilation cavity are respectively communicated with the corresponding air supply pipe; the bottom outer edge surface of the upper blowpipe is provided with a top strip-shaped air supply channel 11, the top outer edge surface of the lower blowpipe is provided with a bottom strip-shaped air supply channel 12, the top strip-shaped air supply channel is communicated with the upper ventilation cavity, and the bottom strip-shaped air supply channel is communicated with the lower ventilation cavity. Wherein, the box body is provided with a connecting hole for the air supply pipe to connect the upper and lower blowing pipes with the air source.
In this embodiment, the spinning that the spinneret touched, can carry out the forced air cooling through the box, at this in-process, the spinning enters into in the cavity from the feed inlet, can carry out the first cooling through left side cooling mechanism in proper order, then carry out the second cooling through the cooling mechanism on right side, see off from the discharge gate at last again, in the time of through cooling mechanism, the air supply pipe gives, the air feed of lower blowing pipe is bloied, the spinning can follow and blow between the pipe, at this in-process, the top bar air supply channel of going up the blowing pipe is bloied downwards, blow the top of spinning, dispel the heat to the top and the lateral part of spinning, the bottom bar air supply channel of lower blowing pipe is bloied upwards, blow the bottom of spinning, dispel the heat to the bottom and the lateral part of spinning, just so can carry out the blast cooling of each position to the spinning. Wherein, at this in-process, go up the blowing pipe and locate the left side top of blowing pipe down, have a horizontal interval between upper and lower blowing pipe like this, namely utilize the blowing cooling of going forward of blowing pipe to the spinning earlier, reuse down the blowing pipe to spinning supplementary blowing cooling, can effectively improve cooling efficiency like this, shorten cooling length, reduce the occupation of space, reduce cost.
Referring to fig. 2 and 3, the cooling mechanism comprises a left side cooling mechanism 13 and a right side cooling mechanism 14, a partition plate 15 is arranged in the middle of the box body, the cavity is divided into a left side cavity 16 and a right side cavity 17 by the partition plate, the left side cooling mechanism is arranged in the left side cavity, the right side cooling mechanism is arranged in the right side cavity, a through groove 18 is arranged in the middle of the partition plate, the left side cavity and the right side cavity are communicated by the through hole, and the through groove is arranged right opposite to the feeding port and the discharging port.
In the embodiment, the partition plate is arranged to divide the cavity into two independent cavities, and the cavities are communicated through the through groove and used for the spinning to pass through. Therefore, when the left cooling mechanism and the right cooling mechanism perform air cooling on spinning, the two independent cavities do not interfere with each other due to the heat in the air cooling process, the cooling efficiency and the cooling quality can be improved, and the cost is reduced.
Referring to fig. 1, a plurality of groups of left ventilation slots 19 and a plurality of groups of right ventilation slots 20 are formed in the front side wall of the box body, the left ventilation slots are communicated with the left cavity, and the right ventilation slots are communicated with the right cavity. The left side ventilation groove and the right side ventilation groove are arranged, the left side cavity and the right side cavity can be communicated, when the cooling mechanism blows air to cool and radiate, the left side ventilation groove and the right side ventilation groove are arranged, hot air in the cavity can flow out conveniently, the heat dissipation effect is improved, spinning can not be directly exposed in the air, the cooling effect is guaranteed, the interference of the external environment to the spinning cooling process can be prevented, and the production stability and the quality of the spinning are guaranteed.
As shown in fig. 2 to 4, the connecting rods are rotatably connected with the box body, a connecting rod 21 is arranged on the rear side of the top of the connecting plate, an arc-shaped groove 22 is arranged on the box body beside each group of connecting rods, the arc-shaped grooves are coaxially arranged corresponding to the connecting rods, the front ends of the arc-shaped grooves are communicated with the cavity, the rear ends of the arc-shaped grooves are communicated with the rear side surface of the box body, and the rear ends of each group of connecting rods penetrate through the corresponding arc-shaped grooves and are arranged outside the rear side of the box body; and the outer edge surface of the rear end of each group of connecting rods is in threaded connection with a butterfly nut 23, and the front end surface of each butterfly nut abuts against the rear side surface of the box body.
In this embodiment, the connecting rod is on the coplanar with the spinning, if the connecting plate position is fixed, then top bar air supply channel, the distance between bottom bar air supply channel and the spinning is fixed, if say need adjust cooling rate (there is the deviation in different product processing traction speed), or adjust the blowing power to the spinning, prevent spinning fracture etc. if directly adjust the air velocity of air feed, control effect is not especially good, therefore, the connecting rod can drive the connecting plate and rotate when the arc wall removes, when the connecting plate rotates, can adjust the distance between upper and lower blast pipe and the spinning, adjust the blowing power that the air current gave the spinning, for adjust cooling efficiency, then lock butterfly nut again, with the fixed position of connecting plate, be convenient for adjust. Wherein, can set up the scale in the side of arc wall, the connecting rod is in the optional position of arc wall like this, can know the distance between corresponding blowing pipe and the spinning, can know blowing power and the cooling rate that corresponds the blowing pipe and give the spinning.
Referring to fig. 2, the upper blowing pipe and the lower blowing pipe are rotatably connected with the connecting plate, the front end of the upper blowing pipe is connected with a top balancing weight 24, and the balancing weight is arranged on the front side of the top strip-shaped air supply channel; the front end of the lower blowing pipe is connected with a bottom balancing weight 25, and the bottom balancing weight is arranged below the front side of the bottom strip-shaped air supply channel.
The setting of top balancing weight and bottom balancing weight, after the connecting plate rotates and has adjusted distance between upper and lower blowing pipe and the spinning, correspond the balancing weight and can make the position relatively fixed of upper and lower blowing pipe, also be exactly top, bottom bar air supply channel can be just facing the spinning for guarantee to blow directly blow on the spinning, can control the distance between air-out and the spinning moreover, be used for controlling cooling rate.
Claims (9)
1. A production process of degradable high-low melting point high elastic sheath core fiber comprises the following steps:
taking PET polyester chips as a core layer raw material and taking low-melting-point polyester chips as a skin layer raw material;
secondly, the core layer raw material is crystallized and dried and then enters a first screw extruder, the core layer raw material is melted and extruded by the first screw extruder to form a polyester solution capable of being spun, and the polyester solution is conveyed into a spinning box body and further uniformly distributed into a composite spinning assembly of the spinning box body to serve as a first component;
thirdly, the cortex raw material is crystallized and dried and then enters a second screw extruder, the melt extrusion of the second screw extruder is carried out to obtain a low-melting-point polyester solution which can be spun, and the low-melting-point polyester solution is conveyed into a spinning box body and further uniformly distributed into a composite spinning assembly of the spinning box body to be used as a second component;
injecting the first component and the second component into a sheath-core spinneret plate through a metering pump metering melt pipeline in a spinning manifold to be compounded, spraying fibers with a sheath-core structure, and performing blowing, cooling, oiling and winding treatment to obtain degradable sheath-core fibers P0Y with high and low melting points;
feeding the degradable high-low melting point sheath-core fiber P0Y fiber to an elasticizer, heating by a hot box of the elasticizer, and carrying out double-twisting and elastic compounding to form the degradable high-low melting point sheath-core fiber;
in the second step and the third step, 3% of degradable master batch by weight is added at the feeding ports of the first screw extruder and the second screw extruder respectively through a master batch machine.
2. The process for producing degradable high-low melting point high elastic sheath core fiber according to claim 1, characterized in that: in the step, the proportion of the first component to the second component is 1: 1-2: 1.
3. the process for producing degradable high-low melting point high elastic sheath core fiber according to claim 1, characterized in that: in the fifth step, in the elasticizing process, the drawing multiple is 1.75 times to 1.85 times, the DY ratio is 1.68, and the temperature of a hot box is 150 ℃.
4. The process for producing degradable high-low melting point high elastic sheath core fiber according to claim 1, characterized in that: the intrinsic viscosity of the core layer raw material is 0.64dl/g melting point 262 ℃, and the intrinsic viscosity of the skin layer raw material is 0.701dl/g melting point 170 ℃.
5. The production equipment for applying the production process of the degradable high-low melting point high-elastic-sheath-core fiber in claim 1 comprises a box body and a cooling mechanism arranged in the box body, wherein a cavity is formed in the box body, a feeding hole and a discharging hole are formed in the left side and the right side of the box body respectively, and are communicated with the cavity, and the production equipment is characterized in that: the two groups of cooling mechanisms are respectively arranged close to the feed inlet and the discharge outlet;
the cooling mechanism comprises a connecting plate, an upper blowing pipe and a lower blowing pipe, the rear ends of the upper blowing pipe and the lower blowing pipe are respectively arranged at the top and the bottom of the connecting plate, the upper blowing pipe is arranged above the lower blowing pipe in the left direction, and the middle of the connecting plate is connected with the box body through a connecting rod;
the rear ends of the upper blowing pipe and the lower blowing pipe are respectively connected with an air supply pipe, an upper ventilation cavity is arranged in the upper blowing pipe, a lower ventilation cavity is arranged in the lower blowing pipe, and the upper ventilation cavity and the lower ventilation cavity are respectively communicated with the corresponding air supply pipe; the bottom outer edge surface of the upper blowing pipe is provided with a top strip-shaped air supply channel, the top outer edge surface of the lower blowing pipe is provided with a bottom strip-shaped air supply channel, the top strip-shaped air supply channel is communicated with the upper ventilation cavity, and the bottom strip-shaped air supply channel is communicated with the lower ventilation cavity.
6. The apparatus for producing degradable high-low melting point high elastic sheath core fiber according to claim 5, wherein: cooling body includes left side cooling body and right side cooling body, the middle part of box is equipped with a baffle, the baffle will the cavity partition is left side cavity and right side cavity, left side cooling body set up in the cavity of left side, right side cooling body set up in the cavity of right side, the middle part of baffle is equipped with a logical groove, the through-hole will left side cavity and right side cavity are linked together, it is just right to lead to the groove feed inlet and discharge gate setting.
7. The apparatus for producing degradable high-low melting point high elastic sheath core fiber according to claim 6, wherein: the front side wall of the box body is provided with a plurality of groups of left side ventilation grooves and a plurality of groups of right side ventilation grooves, the left side ventilation grooves are communicated with the left side cavity, and the right side ventilation grooves are communicated with the right side cavity.
8. The apparatus for producing degradable high-low melting point high elastic sheath core fiber according to claim 5, wherein: the connecting rods are rotatably connected with the box body, a connecting rod is arranged on the rear side of the top of the connecting plate, an arc-shaped groove is formed in the box body beside each group of connecting rods, the arc-shaped grooves are coaxially arranged corresponding to the connecting rods, the front ends of the arc-shaped grooves are communicated with the cavity, the rear ends of the arc-shaped grooves are communicated with the rear side face of the box body, and the rear ends of each group of connecting rods penetrate through the corresponding arc-shaped grooves and are arranged outside the rear side of the box body; and the outer edge surface of the rear end of each group of connecting rods is in threaded connection with a butterfly nut, and the front end surface of the butterfly nut abuts against the rear side surface of the box body.
9. The apparatus for producing degradable high-low melting point high elastic sheath core fiber according to claim 5, wherein: the upper blowing pipe and the lower blowing pipe are rotationally connected with the connecting plate, the front end of the upper blowing pipe is connected with a top balancing weight, and the balancing weight is arranged on the front side of the top strip-shaped air supply channel; the front end of the lower blowing pipe is connected with a bottom balancing weight, and the bottom balancing weight is arranged below the front side of the bottom strip-shaped air supply channel.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3923067A1 (en) * | 1988-07-16 | 1990-02-08 | Barmag Barmer Maschf | Spinning apparatus for synthetic fibres |
| JP2007046224A (en) * | 2006-10-20 | 2007-02-22 | Mitsui Chemicals Inc | Method for producing nonwoven fabric and apparatus therefor |
| CN1932094A (en) * | 2005-09-13 | 2007-03-21 | 东丽纤维研究所（中国）有限公司 | Double component melting adhered polyester fiber and its production process |
| CN201825991U (en) * | 2010-10-22 | 2011-05-11 | 宝山钢铁股份有限公司 | Band steel water stain blowing device of continuous annealing unit |
| CN106149097A (en) * | 2016-07-18 | 2016-11-23 | 无锡盛纤特邦工业材料有限公司 | One adds the bullet non-twist bicomponent filament yarn of core-skin and production method, application |
| CN210481582U (en) * | 2019-06-19 | 2020-05-08 | 湖北博韬合纤有限公司 | Cooling device for polypropylene spinning processing |
| CN111647964A (en) * | 2020-07-07 | 2020-09-11 | 无锡盛烨特邦新材料科技有限公司 | Glue-free heat-bonding shaping special-shaped composite fiber and production method and application thereof |
| CN113481618A (en) * | 2021-07-27 | 2021-10-08 | 彩通(苏州)纳米新材料科技有限公司 | Core-spun hot-melt composite fiber and preparation process thereof |
| CN113913965A (en) * | 2021-12-03 | 2022-01-11 | 上海纳米技术及应用国家工程研究中心有限公司 | Degradable polyester fiber and preparation method thereof |
| CN114086263A (en) * | 2021-11-24 | 2022-02-25 | 佛山市顺德区逸海无纺布制造有限公司 | High-efficient spinning drafting system of non-woven fabrics production |
-
2022
- 2022-03-16 CN CN202210259433.3A patent/CN114541001A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3923067A1 (en) * | 1988-07-16 | 1990-02-08 | Barmag Barmer Maschf | Spinning apparatus for synthetic fibres |
| CN1932094A (en) * | 2005-09-13 | 2007-03-21 | 东丽纤维研究所（中国）有限公司 | Double component melting adhered polyester fiber and its production process |
| JP2007046224A (en) * | 2006-10-20 | 2007-02-22 | Mitsui Chemicals Inc | Method for producing nonwoven fabric and apparatus therefor |
| CN201825991U (en) * | 2010-10-22 | 2011-05-11 | 宝山钢铁股份有限公司 | Band steel water stain blowing device of continuous annealing unit |
| CN106149097A (en) * | 2016-07-18 | 2016-11-23 | 无锡盛纤特邦工业材料有限公司 | One adds the bullet non-twist bicomponent filament yarn of core-skin and production method, application |
| CN210481582U (en) * | 2019-06-19 | 2020-05-08 | 湖北博韬合纤有限公司 | Cooling device for polypropylene spinning processing |
| CN111647964A (en) * | 2020-07-07 | 2020-09-11 | 无锡盛烨特邦新材料科技有限公司 | Glue-free heat-bonding shaping special-shaped composite fiber and production method and application thereof |
| CN113481618A (en) * | 2021-07-27 | 2021-10-08 | 彩通(苏州)纳米新材料科技有限公司 | Core-spun hot-melt composite fiber and preparation process thereof |
| CN114086263A (en) * | 2021-11-24 | 2022-02-25 | 佛山市顺德区逸海无纺布制造有限公司 | High-efficient spinning drafting system of non-woven fabrics production |
| CN113913965A (en) * | 2021-12-03 | 2022-01-11 | 上海纳米技术及应用国家工程研究中心有限公司 | Degradable polyester fiber and preparation method thereof |
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