CN117947552B - Preparation device and method of superfine denier high-elastic polyester filament yarn - Google Patents
Preparation device and method of superfine denier high-elastic polyester filament yarn Download PDFInfo
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- CN117947552B CN117947552B CN202410326846.8A CN202410326846A CN117947552B CN 117947552 B CN117947552 B CN 117947552B CN 202410326846 A CN202410326846 A CN 202410326846A CN 117947552 B CN117947552 B CN 117947552B
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- 229920000728 polyester Polymers 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 151
- 239000000779 smoke Substances 0.000 claims abstract description 42
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 17
- 238000004043 dyeing Methods 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 17
- 238000007493 shaping process Methods 0.000 claims description 14
- 241001589086 Bellapiscis medius Species 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 7
- 230000006855 networking Effects 0.000 claims description 4
- 238000009987 spinning Methods 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 13
- 230000008646 thermal stress Effects 0.000 description 9
- 206010020112 Hirsutism Diseases 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 229920004933 Terylene® Polymers 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001225 nuclear magnetic resonance method Methods 0.000 description 1
- 239000008041 oiling agent Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention belongs to the field of spinning equipment, and relates to a preparation device and a preparation method of superfine denier high-elastic polyester filaments, wherein the device comprises a deformation heating box, and the deformation heating box comprises a box body, a ventilation pipe and a heating fan; the inside of the box body is provided with a horizontally arranged rectifying plate I; the part of the inner cavity of the box body above the rectifying plate I is a heating smoke exhaust chamber, and the part below the rectifying plate I is a stable air chamber; the rectifying plate I is a circular plate, a vertical through hole I for the yarn to pass through is formed in the circle center of the rectifying plate I, vertical through holes II are formed in other positions of the rectifying plate I, and all the vertical through holes II are identical in shape and uniformly distributed in concentric circles around the circle center of the rectifying plate I; the hole wall of the vertical through hole I extends downwards to the lower part of the air stabilizing chamber to form a wire feeding pipe II; one end of the ventilation pipe is communicated with the heating fan, and the other end of the ventilation pipe is communicated with the air stabilizing chamber; the method adopts the device. The invention can ensure that the silk is heated uniformly, so that the silk is dyed more uniformly.
Description
Technical Field
The invention belongs to the field of spinning equipment, and particularly relates to a preparation device and method of superfine denier high-elastic polyester filaments.
Background
The cloth cover woven by the superfine denier high-elastic polyester yarn has the characteristics of light weight, strong toughness, soft and smooth hand feeling, bright color, ventilation and comfort and the like, and can meet the pursuit of people on the hand feeling of the fabric and the comfort level of clothes.
In the prior art, in order to keep the ultra-fine denier high-elastic polyester yarn to have higher fluffiness, the temperature of a deformation heating box needs to be increased in the production process, and the temperature of a shaping heating box needs to be reduced (or the shaping heating box is closed for heating). As shown in FIG. 3, in the prior art, the filament is in contact with the bottom of the heating box, and the temperature at the bottom of the heating box is directly transferred to the filament for heating, because the contact distance between the filament and the heating box is large, the friction force is large, and the oiling agent contained in the filament is adhered to the inside of the heating box through high-temperature volatilization scaling, so that heat transfer between the filament and the heating box is not smooth, and the filament is heated unevenly.
As shown in fig. 4, in a non-contact deformation heating box in the prior art, the temperature generated by the heating box is transferred to the air, and the air is further transferred to the filament, and the heating mode reduces the contact between the filament and the heating box, so that the breakage condition of the filament is improved. However, the heating efficiency of the hot box is low, the energy consumption is high, and the turbulent flow phenomenon is formed in the hot box by air due to the negative pressure generated by the smoke exhaust of the smoke exhaust fan, so that the filament is obviously disturbed; when the oil smoke fan is closed, a large amount of oil smoke in the hot box is accumulated to form fog drops to pollute the silk.
The deformation heating box in the prior art is reformed by a circular blowing cooling device in the prior art and comprises a heating fan and a circular blowing barrel shown in fig. 5, wherein the side wall of the circular blowing barrel is provided with a plurality of blowing holes, and hot air provided by the heating fan is blown to the inner cavity of the circular blowing barrel through the blowing holes so as to heat silk strips passing through the heating fan; the heating efficiency of the deformation heating box is high, the filament is heated uniformly, but the filament is disturbed more obviously in the heating process than the technology in fig. 4.
The problems in the production process are very unfavorable for the production of the superfine denier high-elastic yarn, and the prior art does not propose a solution, so that research on a deformation heating box capable of reducing disturbance of hot air to yarn while guaranteeing uniform yarn heating has very important significance.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a device and a method for preparing superfine denier high-elastic polyester filaments.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the preparation device of the superfine denier high-elastic polyester filament yarn comprises a deformation heating box, wherein the deformation heating box comprises a box body, a ventilation pipe and a heating fan;
The inside of the box body is provided with a horizontally arranged rectifying plate I; the part of the inner cavity of the box body above the rectifying plate I is a heating smoke exhaust chamber, and the part below the rectifying plate I is a stable air chamber;
the rectifying plate I is a circular plate, a vertical through hole I for the yarn to pass through is formed in the circle center of the rectifying plate I, vertical through holes II are formed in other positions of the rectifying plate I, and all the vertical through holes II are identical in shape and uniformly distributed in concentric circles around the circle center of the rectifying plate I;
the hole wall of the vertical through hole I extends downwards to the lower part of the air stabilizing chamber to form a wire feeding pipe II;
one end of the ventilation pipe is communicated with the heating fan, and the other end is communicated with the air stabilizing chamber.
As a preferable technical scheme:
According to the preparation device of the superfine denier high-elastic polyester filament yarn, the vertical through holes I and the vertical through holes II are round holes, the diameter of the vertical through holes II is 1-1.5 mm, and the number of the vertical through holes II is at least 306.
The preparation device of the superfine denier high-elastic polyester filament yarn is characterized in that the rectifying plate II which is horizontally arranged and positioned above the rectifying plate I is also arranged in the box body; the part of the heating smoke exhaust chamber above the rectifying plate II is a smoke exhaust chamber, and the part below the rectifying plate II is a heating chamber;
The rectifying plate II is a circular plate, a vertical through hole III for the yarn to pass through is formed in the circle center of the rectifying plate II, vertical through holes IV are formed in other positions of the rectifying plate II, and all the vertical through holes IV are identical in shape and are uniformly distributed in concentric circles around the circle center of the rectifying plate II;
The hole wall of the vertical through hole III extends upwards to the upper part of the smoke exhaust chamber to form a wire feeding pipe I.
According to the preparation device for the superfine denier high-elastic polyester filament yarn, the vertical through holes III and the vertical through holes IV are round holes, the diameter of each vertical through hole IV is 1-1.5 mm, and the number of the vertical through holes IV is at least 151.
The deformation heating box further comprises a smoke exhaust pipe and a range hood, one end of the smoke exhaust pipe is communicated with the smoke exhaust chamber, and the other end of the smoke exhaust pipe is communicated with the range hood.
The preparation device of the superfine denier high-elastic polyester filament yarn has the advantages that the smoke exhaust chamber is of a cylindrical structure, the heating chamber and the air stabilizing chamber are of a truncated cone-shaped structure, and the smoke exhaust chamber, the heating chamber, the air stabilizing chamber, the rectifying plate I and the rectifying plate II are coaxial; the heating chamber and the air stabilizing chamber are designed into a circular truncated cone-shaped structure, so that the heating air is relatively concentrated at the upper end, heating, fume exhaust and negative pressure generated by the extraction of the range hood are facilitated.
According to the preparation device of the superfine denier high-elastic polyester filament yarn, the diameter of the rectifying plate I is 2/3~3/4 of the diameter of the lower end of the heating chamber, so that heating wind can be prevented from being concentrated at the filament yarn at the upper end, heat accumulation of the filament yarn at the filament yarn can be avoided, the heating temperature is too high, and the filament yarn is prevented from being easily broken due to the fact that negative pressure generated by extraction of the range hood causes some disturbance to the filament yarn in the radial direction.
The preparation device of the superfine denier high-elastic polyester filament yarn has the advantages that the diameter of the rectifying plate II is equal to that of the upper end of the heating chamber.
The preparation device of the superfine denier high-elastic polyester filament yarn is characterized in that the vent pipe is a cylindrical pipe.
According to the preparation device for the superfine denier high-elastic polyester filament yarn, the included angle between the axis of the ventilation pipe and the bus of the air stabilizing chamber is 45+/-2 degrees; the 45-degree angle is favorable for uniformly filling the heating air into the air stabilizing chamber, and larger deviation of wind pressure of the heating air at the near end and the far end of the ventilation pipe is avoided.
According to the preparation device of the superfine denier high-elastic polyester filament yarn, the height of the heating chamber is 800-1000 mm, so that uniform heating of the inner layer and the outer layer of the filament yarn is facilitated, oil smoke of the filament yarn is also facilitated to be dispersed and recycled, and greasy dirt yarn or uneven heating is avoided.
The preparation device of the superfine denier high-elastic polyester filament yarn further comprises an oiling gear, wherein each tooth of the oiling gear is provided with a V-shaped groove, the connecting line of two upper end points of the V-shaped groove is parallel to the length direction of the tooth, and the bottoms of all the V-shaped grooves are located on the same circumference.
The preparation device of the superfine denier high-elastic polyester filament yarn further comprises a pre-networking device, a first yarn feeding roller, a cooling plate, a false twister, a second yarn feeding roller, a middle networking device, a shaping hot box, a third yarn feeding roller, a fourth yarn feeding roller and a DTY winder;
the pre-net device, the first wire feeding roller, the deformation heating box, the cooling plate, the false twister, the second wire feeding roller, the middle net device, the shaping heating box, the third wire feeding roller, the oiling gear, the fourth wire feeding roller and the DTY winder are sequentially arranged along the wire running direction.
The invention also provides a preparation method of the superfine denier high-elastic polyester filament yarn, which adopts the preparation device of the superfine denier high-elastic polyester filament yarn; the filament number of the superfine denier high-elastic polyester filament yarn is 0.22-0.39 dtex, the elongation at break is 21.76-23.85%, the breaking strength is 3.88-4.24 cN/dtex, the oil-containing CV value is 3.16-3.92%, and the dyeing M rate is 98.8-99.5%.
The beneficial effects are that:
The deformation heating box of the preparation device of the superfine denier high-elastic polyester filament yarn has high heating efficiency, can ensure that the filament yarn is uniformly heated, further ensures that the filament yarn is more uniformly dyed, ensures that the heating wind of the deformation heating box is parallel to the running direction of the filament yarn, and reduces the disturbance of hot wind to the filament yarn in the heating process;
The preparation device of the superfine denier high-elastic polyester filament yarn is used for preparing the superfine denier high-elastic polyester filament yarn by a DTY process, and the prepared superfine denier high-elastic polyester filament yarn has fewer filaments;
according to the preparation device of the superfine denier high-elastic polyester filament yarn, each tooth of the oiling gear is provided with the V-shaped groove, so that the linear speed direction of the gear is consistent with the running speed direction of the filament yarn, the friction force of the filament yarn is small, the oiling is uniform, and the filament yarn has a low oil-containing CV value.
Drawings
FIG. 1 is a process flow diagram of the present invention for producing ultra-fine denier high-stretch polyester filaments;
FIG. 2 is a schematic structural diagram of a deformation heating box of the preparation device of the ultra-fine denier high-elastic polyester filament yarn (alpha in the figure is an included angle between the axis of a ventilation pipe and a bus of a stabilizing chamber);
FIG. 3 is a schematic illustration of a prior art contact deformation heating tank for strand silk;
FIG. 4 is a schematic illustration of a prior art non-contact texturing heating oven for threadlines;
FIG. 5 is a schematic view of a yarn through a blowing drum of a prior art deformation heating tank;
FIG. 6 is a schematic view of a yarn through the oiling gear of the preparation device of the ultra-fine denier high-elastic polyester filament yarn of the invention;
In the drawing, 1-POY precursor, 2-pre-network device, 3-first wire feeding roller, 4-deformation heating box, 4.1-smoke exhaust pipe, 4.2-heating chamber, 4.3-heating layer, 4.4-rectifying plate I, 4.5-air stabilizing chamber, 4.6-sealing pipe I, 4.7-ventilation pipe, 4.8-smoke exhaust chamber, 4.9-sealing pipe II, 4.10-rectifying plate II, 4.11-heating fan, 5-cooling plate, 6-false twister, 7-second wire feeding roller, 8-medium network device, 9-shaping heating box, 10-third wire feeding roller, 11-oiling gear, 11.1- "V" -shaped groove, 12-fourth wire feeding roller and 13-DTY winder.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The following are test methods for the relevant performance indicators in each of the examples and comparative examples:
Breaking strength and elongation at break: according to the standard of GB/T14460-2015 terylene low stretch yarn DTY, a full-automatic single yarn strength machine (manufacturer is Hezhou textile instrument mill Co., ltd., model YG 023B-III) is adopted, fibers are pulled to fracture under the condition of uniform tension at a constant speed, and the fracture strength and the fracture elongation of a sample are obtained from data display.
Thermal stress: according to FZ/T50051-2020 terylene pre-oriented yarn dynamic thermal stress test method, a Germany Textechno dynamic thermal stress instrument is adopted, under a set condition, a sample is passed through a heating device and a drawing device at a certain speed and constant pre-tension, the sample is drawn in a certain proportion under a heated condition, and the dynamic thermal stress of the sample in the drawing process is tested.
Oil CV value: according to GB/T8960-2015 polyester drawn yarn, a nuclear magnetic resonance fiber oiling rate tester is adopted, a section of fiber is selected according to a nuclear magnetic resonance method to test oiling rate (oiling rate) of yarn, average value and standard deviation of fiber oiling rate at the same spinning position are calculated, and finally an oiling CV value is obtained.
Dyeing M ratio: according to the standard of GB/T14460-2015 terylene low stretch yarn DTY, calculating the proportion of the yarn with dyeing uniformity gray card reaching 4.0 level and above to all dyed DTY yarns, and obtaining the dyeing M rate.
DTY appearance evaluation: and grading the DTY yarn cylinder according to the DTY appearance inspection standard of the low stretch polyester yarn DTY of GB/T14460-2015.
The preparation device of the ultra-fine denier high-elastic polyester filament yarn comprises a pre-network device 2, a first filament feeding roller 3, a deformation heating box 4, a cooling plate 5, a false twister 6, a second filament feeding roller 7, a middle network device 8, a shaping heating box 9, a third filament feeding roller 10, an oiling gear 11, a fourth filament feeding roller 12 and a DTY winding machine 13 which are sequentially arranged along the filament running direction, wherein the first filament feeding roller is a yarn feeding device;
As shown in fig. 2, the deformation heating box 4 comprises a box body, a ventilation pipe 4.7, a smoke exhaust pipe 4.1, a heating fan 4.11 and a range hood;
the inside of the box body is provided with a rectifying plate I4.4 and a rectifying plate II 4.10 which are horizontally arranged, and the rectifying plate II 4.10 is positioned above the rectifying plate I4.4;
The part of the inner cavity of the box body above the rectifying plate II 4.10 is a smoke discharging chamber 4.8, the smoke discharging chamber 4.8 is of a cylindrical structure, the part between the rectifying plate I4.4 and the rectifying plate II 4.10 is a heating chamber 4.2, the heating chamber 4.2 is of a circular truncated cone-shaped structure, the height is 800-1000 mm, the part below the rectifying plate I4.4 is a stable air chamber 4.5, and the stable air chamber 4.5 is of a circular truncated cone-shaped structure;
The rectifying plate I4.4 is a circular plate, a vertical through hole I for the silk strip to pass through is formed in the circle center position of the rectifying plate I4.4, a vertical through hole II is formed in other positions of the rectifying plate I4.4, and all the vertical through holes II are identical in shape and are uniformly distributed in concentric circles around the circle center of the rectifying plate I4.4;
The hole wall of the vertical through hole I extends downwards to the lower part of the air stabilizing chamber 4.5 to form a wire feeding pipe II 4.6;
The vertical through holes I and the vertical through holes II are round holes, the diameter of the vertical through holes II is 1-1.5 mm, and the number of the vertical through holes II is at least 306;
The rectifying plate II 4.10 is a circular plate, a vertical through hole III for the silk strip to pass through is formed in the circle center position of the rectifying plate II 4.10, a vertical through hole IV is formed in other positions of the rectifying plate II 4.10, and all the vertical through holes IV are identical in shape and are uniformly distributed in concentric circles around the circle center of the rectifying plate II 4.10;
the hole wall of the vertical through hole III extends upwards to the upper part of the smoke discharging chamber 4.8 to form a wire feeding pipe I4.9;
The vertical through holes III and IV are round holes, the diameter of the vertical through holes IV is 1-1.5 mm, and the number of the vertical through holes IV is at least 151;
The smoke exhaust pipe 4.1 is vertically arranged above the box body, one end of the smoke exhaust pipe is communicated with the smoke exhaust chamber 4.8, and the other end of the smoke exhaust pipe is communicated with the range hood;
the smoke exhaust chamber 4.8, the heating chamber 4.2, the air stabilizing chamber 4.5, the rectifying plate I4.4 and the rectifying plate II 4.10 are coaxial;
the diameter of the rectifying plate I4.4 is 2/3~3/4 of the diameter of the lower end of the heating chamber 4.2;
the diameter of the rectifying plate II 4.10 is equal to the diameter of the upper end of the heating chamber 4.2;
the ventilation pipe 4.7 is a cylindrical pipe, one end of the ventilation pipe is communicated with the heating fan 4.11, and the other end of the ventilation pipe is communicated with the air stabilizing chamber 4.5;
The included angle between the axis of the ventilation pipe 4.7 and the bus of the air stabilizing chamber 4.5 is 45+/-2 degrees;
As shown in fig. 6, each tooth of the oiling gear 11 is provided with a V-shaped groove 11.1, the connecting line of two upper end points of the V-shaped groove is parallel to the length direction of the tooth, and the bottoms of all the V-shaped grooves 11.1 are positioned on the same circumference.
Example 1
The production method of the superfine denier high-elastic polyester filament yarn is shown in figure 1, and the process flow is as follows: selecting POY (pre-net) 1 (with the specification of 24dtex/72f, the elongation at break of 113 percent and the breaking strength of 3.03cN/dtex and the thermal stress of 27.3 cN), pre-net-feeding through a pre-net-feeding device 2, entering a first wire-feeding roller 3, heating in a deformation heating box 4, cooling by a cooling plate 5, feeding into a false twister 6 for twisting, feeding into a second wire-feeding roller 7, middle net-feeding through a middle net-feeding device 8, closing a shaping heat box 9, feeding into a third wire-feeding roller 10, oiling through an oiling gear 11, feeding into a fourth wire-feeding roller 12, and performing DTY winding and forming through a DTY winding machine 13;
the dimensional parameters of the deformation heating tank 4 are set as follows:
The diameter of the vertical through holes II is 1mm, the number of the vertical through holes II is 306, the height of the heating chamber is 800mm, the diameter of the vertical through holes IV is 1mm, the number of the vertical through holes IV is 151, the diameter of the rectifying plate I4.4 is 2/3 of the diameter of the lower end of the heating chamber 4.2, and the included angle between the axis of the ventilation pipe 4.7 and a bus of the air stabilizing chamber 4.5 is 43 degrees;
The production process parameters are set as follows:
The pre-network air pressure is 0.03MPa, the draft ratio of the first wire feeding roller is 1.56, the blowing temperature of the heating fan is 165 ℃, the blowing speed of the heating fan is 3m/s, the frequency of the range hood is 30Hz, the false twist speed ratio is 1.72, the speed of the second roller is 500m/min, the overfeed rate of the second wire feeding roller is-5.0%, the medium network air pressure is 0.07MPa, the overfeed rate of the third wire feeding roller is-5.5%, the oiling gear rotating speed is 0.2rpm, the overfeed rate of the fourth wire feeding roller is-6.8%, and the overfeed rate of the DTY winding forming is-3.8%.
The filament number of the finally prepared superfine denier high-elastic polyester filament yarn is 0.22dtex, the elongation at break is 22.36%, the breaking strength is 4.06cN/dtex, the oil-containing CV value is 3.16%, the dyeing M rate is 99.1%, and the DTY appearance is evaluated: the hairiness is less.
Comparative example 1
A method for producing polyester filaments, which is basically the same as in example 1, and is different only in that: the deforming heating tank of example 1 was replaced with a contact deforming heating tank (temperature: 165 ℃) in fig. 3.
The elongation at break of the finally prepared polyester filament yarn is 16.54%, the breaking strength is 3.07cN/dtex, the dyeing M rate is 96.4%, and the appearance evaluation of DTY is that: the number of the broken filaments is large.
Comparing comparative example 1 with example 1, it is known that the elongation at break, breaking strength, dyeing M rate of the polyester filament yarn of comparative example 1 are all significantly reduced, and the number of filaments is large, mainly because: in comparative example 1, the resistance increases during the operation due to the contact heating of the yarn and the deformation heating box, and the yarn is damaged after being subjected to resistance, so that the monofilament is broken, the breaking elongation and breaking strength are reduced, and the broken yarn increases; the yarn and the hot box are heated in a contact manner, so that uneven heating is easy, the hot box is easy to scale, the color difference of the depth and the like occurs, and the dyeing M rate is low.
Example 2
The production method of the superfine denier high-elastic polyester filament yarn is shown in figure 1, and the process flow is as follows: selecting POY (pre-net) 1 (specification is 25dtex/48f, elongation at break is 115.7%, breaking strength is 2.92cN/dtex, thermal stress is 25.9 cN), pre-net-feeding through a pre-net-feeding device 2, feeding into a first wire feeding roller 3, heating in a deformation heating box 4, cooling in a cooling plate 5, feeding into a false twister 6 for twisting, feeding into a second wire feeding roller 7, middle net-feeding through a middle net-feeding device 8, closing a shaping heating box 9, feeding into a third wire feeding roller 10, oiling through an oiling gear 11, feeding into a fourth wire feeding roller 12, and DTY winding through a DTY winding machine 13 for shaping;
the dimensional parameters of the deformation heating tank 4 are set as follows:
the diameter of the vertical through holes II is 1.3mm, the number of the vertical through holes II is 352, the height of the heating chamber is 900mm, the diameter of the vertical through holes IV is 1.3mm, the number of the vertical through holes IV is 202, the diameter of the rectifying plates I4.4 is 2/3 of the diameter of the lower end of the heating chamber 4.2, and the included angle between the axis of the ventilation pipe 4.7 and a bus of the air stabilizing chamber 4.5 is 45 degrees;
The production process parameters are set as follows:
The pre-network air pressure is 0.04MPa, the draft ratio of the first wire feeding roller is 1.59, the blowing temperature of the heating fan is 175 ℃, the blowing speed of the heating fan is 3.5m/s, the frequency of the range hood is 35Hz, the false twist speed ratio is 1.76, the speed of the second roller is 600m/min, the overfeed rate of the second wire feeding roller is-5.0%, the medium network air pressure is 0.09MPa, the overfeed rate of the third wire feeding roller is-5.5%, the speed of the oiling gear is 0.2rpm, the overfeed rate of the fourth wire feeding roller is-7.0%, and the overfeed rate of the DTY winding forming is-4%.
The filament number of the finally prepared superfine denier high-elastic polyester filament yarn is 0.33dtex, the elongation at break is 23.64%, the breaking strength is 4.01cN/dtex, the oil-containing CV value is 3.61%, the dyeing M rate is 99.3%, and the DTY appearance is evaluated: the hairiness is less.
Example 3
The production method of the superfine denier high-elastic polyester filament yarn is shown in figure 1, and the process flow is as follows: selecting POY (pre-net) 1 (with the specification of 33dtex/96f, the elongation at break of 117.5 percent and the breaking strength of 3.21cN/dtex, the thermal stress of 33.76 cN), pre-net through a pre-net device 2, entering a first wire feeding roller 3, heating in a deformation heating box 4, cooling in a cooling plate 5, feeding into a false twister 6 for twisting, feeding into a second wire feeding roller 7, middle net through a middle net device 8, closing a shaping heating box 9, feeding into a third wire feeding roller 10, oiling through an oiling gear 11, feeding into a fourth wire feeding roller 12, and performing DTY winding forming through a DTY winding machine 13;
the dimensional parameters of the deformation heating tank 4 are set as follows:
the diameter of the vertical through holes II is 1.3mm, the number of the vertical through holes II is 406, the height of the heating chamber is 900mm, the diameter of the vertical through holes IV is 1.3mm, the number of the vertical through holes IV is 256, the diameter of the rectifying plates I4.4 is 2/3 of the diameter of the lower end of the heating chamber 4.2, and the included angle between the axis of the ventilation pipe 4.7 and a bus of the air stabilizing chamber 4.5 is 45 degrees;
The production process parameters are set as follows:
The pre-network air pressure is 0.035MPa, the draft ratio of the first wire feeding roller is 1.55, the blowing temperature of the heating fan is 165 ℃, the blowing speed of the heating fan is 4m/s, the frequency of the range hood is 40Hz, the false twist speed ratio is 1.6, the speed of the second roller is 500m/min, the overfeed rate of the second wire feeding roller is-4.50%, the medium network air pressure is 0.07MPa, the overfeed rate of the third wire feeding roller is-3.5%, the speed of the oiling gear is 0.3rpm, the overfeed rate of the fourth wire feeding roller is-5.50%, and the overfeed rate of the DTY winding forming is-3.5%.
The filament number of the finally prepared superfine denier high-elastic polyester filament yarn is 0.23dtex, the elongation at break is 23.85%, the breaking strength is 4.24cN/dtex, the oil-containing CV value is 3.84%, the dyeing M rate is 98.8%, and the DTY appearance is evaluated: the hairiness is less.
Comparative example 2
A method for producing polyester filaments, which is basically the same as in example 3, and is different only in that: the deforming heating tank of example 3 was replaced with a noncontact deforming heating tank (temperature: 165 ℃ C.) in FIG. 4.
The dyeing M ratio of the finally prepared polyester filament yarn is 95.8%.
Comparing comparative example 2 with example 3, the dyeing M rate of comparative example 2 is significantly reduced, mainly because: in comparative example 2, the negative pressure at the smoke outlet resulted in a large shaking of the yarn, the radial deflection of the yarn was more pronounced, the yarn was heated unevenly, and the dyeing M rate was lower.
Example 4
The production method of the superfine denier high-elastic polyester filament yarn is shown in figure 1, and the process flow is as follows: selecting POY (pre-net) 1 (with the specification of 42dtex/72f, the elongation at break of 118.6 percent and the breaking strength of 3.02cN/dtex, the thermal stress of 28.54 cN), pre-net-feeding through a pre-net-feeding device 2, entering a first wire feeding roller 3, heating in a deformation heating box 4, cooling in a cooling plate 5, feeding into a false twister 6 for twisting, feeding into a second wire feeding roller 7, middle net-feeding through a middle net-feeding device 8, closing a shaping heating box 9, feeding into a third wire feeding roller 10, oiling through an oiling gear 11, feeding into a fourth wire feeding roller 12, and performing DTY winding and forming through a DTY winding machine 13;
the dimensional parameters of the deformation heating tank 4 are set as follows:
the diameter of the vertical through holes II is 1.3mm, the number of the vertical through holes II is 406, the height of the heating chamber is 900mm, the diameter of the vertical through holes IV is 1.3mm, the number of the vertical through holes IV is 256, the diameter of the rectifying plates I4.4 is 2/3 of the diameter of the lower end of the heating chamber 4.2, and the included angle between the axis of the ventilation pipe 4.7 and a bus of the air stabilizing chamber 4.5 is 45 degrees;
The production process parameters are set as follows:
The pre-network air pressure is 0.035MPa, the draft ratio of the first wire feeding roller is 1.62, the blowing temperature of the heating fan is 178 ℃, the blowing speed of the heating fan is 4.5m/s, the range hood frequency is 35Hz, the false twist speed ratio is 1.8, the speed of the second roller is 550m/min, the overfeed rate of the second wire feeding roller is-5.50%, the medium network air pressure is 0.08MPa, the overfeed rate of the third wire feeding roller is-3.0%, the speed of the oiling gear is 0.32rpm, the overfeed rate of the fourth wire feeding roller is-4.20%, and the overfeed rate of the DTY winding forming is-2.5%.
The filament number of the finally prepared superfine denier high-elastic polyester filament yarn is 0.39dtex, the elongation at break is 22.59%, the breaking strength is 4.08cN/dtex, the oil-containing CV value is 3.57%, the dyeing M rate is 99.5%, and the DTY appearance is evaluated: the hairiness is less.
Example 5
The production method of the superfine denier high-elastic polyester filament yarn is shown in figure 1, and the process flow is as follows: selecting POY (pre-net) 1 (with the specification of 53dtex/144f, 120.5% elongation at break and 3.14cN/dtex of breaking strength and 35.42cN of thermal stress), pre-net-feeding through a pre-net-feeding device 2, entering a first wire feeding roller 3, heating in a deformation heating box 4, cooling by a cooling plate 5, feeding into a false twister 6 for twisting, feeding into a second wire feeding roller 7, middle net-feeding through a middle net-feeding device 8, closing a shaping heating box 9, feeding into a third wire feeding roller 10, oiling through an oiling gear 11, feeding into a fourth wire feeding roller 12, and performing DTY winding through a DTY winding machine 13;
the dimensional parameters of the deformation heating tank 4 are set as follows:
The diameter of the vertical through holes II is 1.5mm, the number of the vertical through holes II is 406, the height of the heating chamber is 1000mm, the diameter of the vertical through holes IV is 1.5mm, the number of the vertical through holes IV is 256, the diameter of the rectifying plates I4.4 is 3/4 of the diameter of the lower end of the heating chamber 4.2, and the included angle between the axis of the ventilation pipe 4.7 and a bus of the air stabilizing chamber 4.5 is 47 degrees;
The production process parameters are set as follows:
The pre-network air pressure is 0.045MPa, the draft ratio of the first wire feeding roller is 1.68, the blowing temperature of the heating fan is 170 ℃, the blowing speed of the heating fan is 5m/s, the range hood frequency is 40Hz, the false twist speed ratio is 1.78, the speed of the second roller is 600m/min, the overfeed rate of the second wire feeding roller is-3.10%, the medium network air pressure is 0.12MPa, the overfeed rate of the third wire feeding roller is-4.2%, the oiling gear rotating speed is 0.4rpm, the overfeed rate of the fourth wire feeding roller is-4.0%, and the overfeed rate of the DTY winding forming is-2.0%.
The filament number of the finally prepared superfine denier high-elastic polyester filament yarn is 0.23dtex, the elongation at break is 23.16%, the breaking strength is 4.11cN/dtex, the oil-containing CV value is 3.92%, the dyeing M rate is 98.9%, and the DTY appearance is evaluated: the hairiness is less.
Example 6
The production method of the ultra-fine denier high-elastic polyester filament yarn is basically the same as that in example 5, and the difference is that: the heating chamber and the steady air chamber of the deformation heating box are both cylindrical structures (the heights of the heating chamber and the steady air chamber are unchanged, and the inner diameter of the heating chamber is equal to that of the smoke exhaust chamber).
The filament number of the finally prepared superfine denier high-elastic polyester filament yarn is 0.23dtex, the elongation at break is 21.76%, the breaking strength is 3.88cN/dtex, the oil-containing CV value is 3.92%, the dyeing M rate is 98.9%, and the DTY appearance is evaluated: less filigree (slightly more filigree than in example 5).
As can be seen by comparing the example 6 with the example 5, the breaking elongation and breaking strength of the ultra-fine denier high-elastic polyester filament yarn of the example 6 are slightly reduced, and the filament yarn is more than the example 5, because the heating chamber and the air stabilizing chamber are of cylindrical structures, the distribution of the oil smoke in the smoke discharging chamber is relatively dispersed, the negative pressure generated by the oil smoke extraction of the range hood can radially disturb the filament yarn, the breaking elongation and breaking strength of the filament yarn are slightly reduced, the filament yarn is broken, the filament yarn and the broken ends are more, and the filament yarn is easy to break.
Comparative example 3
A method for producing polyester filaments, which is basically the same as in example 6, and is different only in that: the deforming heating chamber of example 6 was replaced with a deforming heating chamber of the prior art (the heating fan in the deforming heating chamber of the prior art is the same as the heating fan of example 6, the height of the circular blowing tube in the deforming heating chamber of the prior art is the same as the height of the heating chamber of example 6, and the inner diameter of the circular blowing tube in the deforming heating chamber of the prior art is the same as the inner diameter of the heating chamber of example 6).
The elongation at break of the finally prepared polyester filament yarn is 18.11%, the breaking strength is 3.29cN/dtex, and the DTY appearance is evaluated: the number of the broken filaments is large.
Comparing comparative example 3 with example 6, it is clear that the elongation at break and the breaking strength of comparative example 3 are both reduced, and that there are many filaments, mainly because: in comparative example 3, the radial blowing of the yarn during heating caused the yarn to have a large wobble, the breaking elongation and breaking strength of the yarn were reduced, the filaments were broken, and the filaments and broken ends were numerous.
Claims (9)
1. The preparation device of the superfine denier high-elastic polyester filament yarn comprises a deformation heating box (4), and is characterized in that the deformation heating box (4) comprises a box body, a ventilation pipe (4.7) and a heating fan (4.11);
The inside of the box body is provided with a horizontally arranged rectifying plate I (4.4); the part of the inner cavity of the box body above the rectifying plate I (4.4) is a heating smoke exhaust chamber, and the part below the rectifying plate I (4.4) is a steady air chamber (4.5);
The rectifying plate I (4.4) is a circular plate, a vertical through hole I for the silk strip to pass through is formed in the circle center of the rectifying plate I (4.4), vertical through holes II are formed in other positions of the rectifying plate I (4.4), and all the vertical through holes II are identical in shape and uniformly distributed in concentric circles around the circle center of the rectifying plate I (4.4);
the hole wall of the vertical through hole I extends downwards to the lower part of the air stabilizing chamber (4.5) to form a wire feeding pipe II (4.6);
one end of the ventilation pipe (4.7) is communicated with the heating fan (4.11), and the other end is communicated with the air stabilizing chamber (4.5).
2. The preparation device of the ultra-fine denier high-elastic polyester filament yarn according to claim 1, wherein the vertical through holes I and the vertical through holes II are round holes, the diameter of the vertical through holes II is 1-1.5 mm, and the number of the vertical through holes II is at least 306.
3. The preparation device of the ultra-fine denier high-elastic polyester filament yarn according to claim 1, wherein a rectifying plate II (4.10) which is horizontally arranged and is positioned above the rectifying plate I (4.4) is also arranged in the box body; the part of the heating smoke exhaust chamber above the rectifying plate II (4.10) is a smoke exhaust chamber (4.8), and the part below the rectifying plate II (4.10) is a heating chamber (4.2);
The rectifying plate II (4.10) is a circular plate, a vertical through hole III for the silk strip to pass through is formed in the circle center of the rectifying plate II (4.10), vertical through holes IV are formed in other positions of the rectifying plate II (4.10), and all the vertical through holes IV are identical in shape and uniformly distributed in concentric circles around the circle center of the rectifying plate II (4.10);
The hole wall of the vertical through hole III extends upwards to the upper part of the smoke discharging chamber (4.8) to form a wire feeding pipe I (4.9).
4. The preparation device of the ultra-fine denier high-elastic polyester filament yarn according to claim 3, wherein the vertical through holes III and the vertical through holes IV are round holes, the diameter of the vertical through holes IV is 1-1.5 mm, and the number of the vertical through holes IV is at least 151.
5. The preparation device of the ultra-fine denier high-elastic polyester filament yarn according to claim 3, wherein the deformation heating box (4) further comprises a smoke exhaust pipe (4.1) and a range hood, one end of the smoke exhaust pipe (4.1) is communicated with the smoke exhaust chamber (4.8), and the other end of the smoke exhaust pipe (4.1) is communicated with the range hood.
6. The preparation device of the ultra-fine denier high-elastic polyester filament yarn according to claim 3, wherein the smoke discharging chamber (4.8) is of a cylindrical structure, the heating chamber (4.2) and the air stabilizing chamber (4.5) are of a round table-shaped structure, and the smoke discharging chamber (4.8), the heating chamber (4.2), the air stabilizing chamber (4.5), the rectifying plate I (4.4) and the rectifying plate II (4.10) are coaxial.
7. The preparation device of the ultra-fine denier high-elastic polyester filament yarn according to claim 1, further comprising an oiling gear (11), wherein each tooth of the oiling gear (11) is provided with a V-shaped groove (11.1), the connecting line of two upper end points of the V-shape is parallel to the length direction of the tooth, and the bottoms of all the V-shaped grooves (11.1) are positioned on the same circumference.
8. The device for preparing the superfine denier high-elastic polyester filament yarn according to claim 7 is characterized in that the device for preparing the superfine denier high-elastic polyester filament yarn further comprises a pre-network device (2), a first yarn feeding roller (3), a cooling plate (5), a false twister (6), a second yarn feeding roller (7), a middle network device (8), a shaping hot box (9), a third yarn feeding roller (10), a fourth yarn feeding roller (12) and a DTY winder (13);
the pre-networking device (2), the first wire feeding roller (3), the deformation heating box (4), the cooling plate (5), the false twister (6), the second wire feeding roller (7), the middle networking device (8), the shaping heating box (9), the third wire feeding roller (10), the oiling gear (11), the fourth wire feeding roller (12) and the DTY winding machine (13) are sequentially arranged along the wire running direction.
9. A method for preparing a superfine denier high-elastic polyester filament yarn, which is characterized in that the preparation device of the superfine denier high-elastic polyester filament yarn is adopted; the filament number of the superfine denier high-elastic polyester filament yarn is 0.22-0.39 dtex, the elongation at break is 21.76-23.85%, the breaking strength is 3.88-4.24 cN/dtex, the oil-containing CV value is 3.16-3.92%, and the dyeing M rate is 98.8-99.5%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204825156U (en) * | 2015-07-29 | 2015-12-02 | 浙江易顺工贸有限公司 | Polyester filament apparatus for producing |
| CN208183179U (en) * | 2018-05-08 | 2018-12-04 | 江苏金荷花化纤有限公司 | A kind of steam chest for chemical fibre processing |
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| FR1363920A (en) * | 1963-03-05 | 1964-06-19 | Chavanoz Moulinage Retorderie | Improvements in the heat treatment of synthetic textiles |
| CN207313919U (en) * | 2017-09-18 | 2018-05-04 | 中安信科技有限公司 | Carbon fiber starching drying device |
| CN109183217A (en) * | 2018-11-23 | 2019-01-11 | 浙江天祥新材料有限公司 | A kind of heating-cooling device of elasticizer |
| CN209974980U (en) * | 2019-04-15 | 2020-01-21 | 浙江安吉华逸化纤有限公司 | Chemical fiber filament heating equipment |
| CN214300554U (en) * | 2021-01-25 | 2021-09-28 | 桐乡市创新纺织股份有限公司 | Texturing machine deformation heat box energy-saving structure |
| CN217651387U (en) * | 2022-06-16 | 2022-10-25 | 龙游龙纤新材料有限公司 | Uniform drafting hot box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204825156U (en) * | 2015-07-29 | 2015-12-02 | 浙江易顺工贸有限公司 | Polyester filament apparatus for producing |
| CN208183179U (en) * | 2018-05-08 | 2018-12-04 | 江苏金荷花化纤有限公司 | A kind of steam chest for chemical fibre processing |
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