Method and device for producing fibers special for ultrathin low stretch yarn double-faced cloth

Abstract

The invention discloses a production method of special fibers for ultrathin low-stretch yarn double-faced cloth, which comprises the following steps of: conveying 90dtex / 48F semi-gloss POY (polyester pre-oriented yarn) to an ATF-1500 multi-spindle-position high-speed elasticizer in a corridor conveying manner for production; the production method comprises the steps of 90dtex / 48F semi-gloss POY raw yarn, a first roller, a twist stopper, a non-contact high-temperature hot box, a cooling suction system, a false twister, an on-line tension detection system, a second roller, an interlacer, an auxiliary roller, a lower hot box, a third roller, a yarn detector, an oil wheel, a yarn separator, a winding device, inspection, automatic assembly line packaging and warehousing and selling. The five yarn paths of the warehouse-out device, the twist stopping device, the twist stopping device, the false twister inlet, the oil wheel and the yarn dividing device are all adjustable rotary porcelain wheel devices, and fixed porcelain piece devices are arranged on the two yarn paths in front of the original yarn pipe and behind the first roller. The double-faced fabric made of the product has the characteristics of moisture absorption and sweat releasing, quick drying, light texture, soft hand feeling, smoothness and low possibility of wrinkling, has good skin-friendly property, and can be used for producing various fabrics through processes such as washing and calendering, coating and compounding.

Description

Technical Field

[0001] The present invention relates to the technical field of polyester filament production, and in particular to a method and device for producing special fibers for ultra-thin low-elastic double-sided fabrics. Background Art

[0002] As sports become increasingly integrated into our daily lives, sportswear has long become a household staple. Currently, polyester is the most common fabric used for sportswear, even when blended with cotton. Polyester boasts numerous excellent textile and wear properties. When blended with natural fibers like cotton, wool, silk, and linen, as well as other chemical fibers, polyester creates a wide variety of wool-like, cotton-like, silk-like, and linen-like fabrics that are durable, crisp, easy to wash and dry, and durable. Many sportswear fabrics, such as ADIDAS' CLIMAFIT, NIKE'S DRIFIT, and LI-NING'S ATDRY, are now 100% polyester. Many of these sportswear pieces are made from knitted fabrics. Knitted fabrics offer excellent sweat absorption, elasticity, and stretchability, making them ideal for athletic performance.

[0003] The special fiber for ultra-thin low-stretch double-sided fabric is polyester fiber for warp knitting. During warp knitting, since the processing speed of air-jet looms is faster than that of ordinary water-jet looms, such as 55 / 48 specification products, the polyester fiber cannot have single-filament breakage caused by network air pressure or friction. Otherwise, the air-jet loom will cause an increase in broken ends and a low start-up rate. In severe cases, it will also cause horizontal bars on the fabric surface.

[0004] When producing polyester fibers, the current spinning process and texturizing equipment result in a certain proportion of broken monofilament hairs due to process and equipment issues. When used for warp knitting, air-jet looms experience a high rate of broken ends, which affects the operating rate to a certain extent. The main reasons for the broken monofilament hairs in polyester fiber production include the following:

[0005] 1. During the transportation process of POY raw materials, manual loading is required, which will cause certain human damage.

[0006] 2. Conventional high-temperature hot box of texturing machine The deformation hot box adopted in this invention is a high-temperature short hot box. The shortened length of the hot box is not conducive to obtaining the deformation temperature of the yarn bundle; and it will form contact with the yarn bundle during heating, causing the yarn bundle to be worn and form hairiness during the heating process; the high-temperature hot box in the traditional texturing machine is a separate whole that is heated by a biphenyl heating process. Not only does it have environmental problems, but it also cannot achieve the purpose of forming different temperature differences in different areas during the heating process.

[0007] 3. When producing polyester fibers, the existing texturizing machine operates at a processing speed of 910 m / min. Due to the high processing speed and high deformation temperature, the tow temperature is high but the time it stays in the cooling system is short, which affects the fixation and retention of the tow's shaping effect. As a result, the friction between the fiber filaments and the friction between the filaments and the components increases, which can easily cause the filaments to break, resulting in hairiness that reduces fiber strength, affecting product quality and the quality of subsequent use. Summary of the Invention

[0008] In order to solve certain technical problems existing in the prior art, one of the purposes of this application is to provide a production method for ultra-thin low-elastic double-sided cloth special fiber, which can solve the problem of single-filament breakage and many hair ends caused by network air pressure or friction during polyester fiber production, thereby significantly reducing the breakage rate of the air-jet loom and increasing the start-up rate.

[0009] The second purpose of this application is to provide a production device for ultra-thin low-elastic double-sided fabric special fibers.

[0010] In order to solve the above existing technical problems, one of the objectives of this application is achieved by adopting the following technical solutions:

[0011] A method for producing special fibers for ultra-thin low-elastic double-sided cloth,

[0012] The 90dtex / 48F semi-gloss POY is transported to the ATF-1500 multi-spindle high-speed texturing machine through a corridor conveyor for production. The 90dtex / 48F semi-gloss POY raw yarn enters the first roller of the ATF-1500 multi-spindle high-speed texturing machine through the raw yarn tube, and then passes through the anti-twist device → non-contact high-temperature hot box → cooling and suction system → false twist device → online tension detection system → second roller → network device → auxiliary roller → lower hot box → third roller → yarn detector → oil tanker → yarn separator → winding device, and then inspected → automatically packaged and put into storage on the assembly line → sold and shipped.

[0013] Among them, processing speed (m / min) 910;

[0014] Stretch ratio 1.725±0.03;

[0015] The deformation temperature of the non-contact high-temperature hot box (℃) includes 255±3 in the long zone of the upper hot box and 285±3 in the short zone of the upper hot box;

[0016] Lower hot box setting temperature (℃) 167±3;

[0017] Tanker speed (rpm) 0.55±0.02;

[0018] The specifications of the 90dtex / 48F semi-gloss POY include:

[0019] Breaking strength: 2.69cN / dtex;

[0020] Elongation at break: 124.1%;

[0021] Oil content: 0.35%;

[0022] Online tension C-cut range 25%; tension CV value 2.5%;

[0023] The five silk paths at the twist stopper, the front of the twist stopper, the false twister entrance, the oil wheel, and the silk separator all adopt adjustable rotating porcelain wheel devices, and the two silk paths in front of the raw silk tube and behind the first roller are provided with fixed porcelain devices.

[0024] Preferably, the ultra-thin low-elastic double-sided cloth special fiber product prepared by the method is as follows: the product linear density (dtex / F) is 55dtex / 48F; the linear density deviation rate is ±2.5; the linear density variation coefficient CV value (%) is ≤1.00; the breaking strength (cN / dtex ≥3.30; the breaking strength variation coefficient CV value (%) is ≤6.00; the breaking elongation (%) is 21.0±3.0; the breaking elongation variation coefficient CV value (%) is ≤10.00; the curl shrinkage rate (%) is 11.0 (1±20%); the curl shrinkage variation coefficient (%) is ≤7.00; the curl stability (%) is ≥68.0; the boiling water shrinkage (%) is 3.0±0.5; the dyeing uniformity (gray card) / grade is ≥4; the oil content (%) is 3.00±0.80.

[0025] Preferably, the network wire gas source in the network device is supplied by a high-low pressure dual-purpose centrifugal air compressor and a pneumatic automatic drainage device of a middle network gas cylinder filter element, and the pressure of the network device is a middle network pressure of 0.4 bar.

[0026] Preferably, the cooling and suction system adopts an SCP cooling and suction system that combines natural cooling and cooling air.

[0027] Preferably, the ATF-1500 multi-spindle high-speed texturing machine adopts a "T"-shaped yarn path for production, and the non-contact high-temperature hot box adopts a zigzag arrangement of plug-ins.

[0028] One of the objectives of this application is achieved by the following technical solution:

[0029] A production device for ultra-thin low-stretch double-sided fabric fibers includes an ATF-1500 multi-spindle high-speed texturing machine. A fan exhaust duct device connected to the outlet duct of the equipment's exhaust system is provided on the top of the frame of the ATF-1500 multi-spindle high-speed texturing machine. Heat generated by the non-contact high-temperature hot box, the SCP cooling and suction system, and the lower hot box is discharged through the exhaust system and then enters the fan exhaust duct device for secondary extraction.

[0030] Preferably, the ATF-1500 multi-spindle high-speed texturing machine includes a roller, a twist stopper, a first heat box, a suction cooling system, a false twister, an online tension detection system, two rollers, a network device, an auxiliary roller, a lower heat box, three rollers, a wire detector, an oil wheel, a wire separator and a winding device. The feed end of the roller is provided with a raw silk tube, and the twist stopper, the front of the twist stopper, the false twister inlet, the oil wheel and the upper porcelain wheel device of the wire separator all adopt an adjustable rotating porcelain wheel device. A fixed porcelain device is provided on the silk path in front of the raw silk tube and behind the roller.

[0031] Preferably, the first hot box adopts a non-contact high-temperature hot box, which includes an upper hot box long zone and an upper hot box short zone. The filament bundle enters from the upper hot box short zone and is discharged through the upper hot box long zone. The length of the suction cooling system is 60 cm.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] This invention differs from traditional, old-fashioned spinning processes and texturizing machine equipment and processes: the raw material is ultra-fine denier POY supplied exclusively by the group company for melt direct spinning, and is transported via a corridor, minimizing human damage and ensuring the supply of high-quality raw materials. Compared with traditional texturizing machines, the 1m-long non-contact high-temperature short-heat box is divided into a long zone and a short zone. It uses electric heating and eliminates the traditional biphenyl heating process, creating favorable conditions for increasing processing speed and being environmentally friendly. The 60cm independent SCP cooling and suction system uses a suction cooling system that combines natural cooling and cooling air, which increases the cooling rate and improves product quality. The product of this invention is used in the later stage for ultra-thin, low-elastic double-sided fabrics. The double-sided fabrics produced are characterized by moisture absorption and perspiration, quick drying, light texture, soft and smooth feel, and wrinkle resistance. At the same time, they are extremely comfortable to wear and have good skin-friendliness. Various fabrics can be produced through processes such as washing, calendering, coating, and lamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a process flow chart of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 3 This is a schematic structural diagram of the fan smoke exhaust pipe device of the present invention;

[0037] Figure 4 This is a schematic diagram of a half-section structure in which the expansion joint and the outlet pipe of the equipment smoke exhaust system are connected via an oil receiving device in the present invention;

[0038] In the figure: 1. Adjustable rotating porcelain wheel device; 2. Wire separator; 3. One roller; 4. Raw silk tube; 5. Fixed porcelain device; 6. Twist stopper; 7. Non-contact high-temperature hot box; 71. Upper hot box short zone; 72. Upper hot box long zone; 8. Cooling and suction system; 9. False twister; 10. Online tension detection system; 11. Two rollers; 12. Network device; 13. Auxiliary roller; 14. Lower hot box; 15. Three rollers; 16. Wire detector; 17. Oil tanker; 18. Winding device; 19. Equipment exhaust system outlet pipe; 20. Fan exhaust pipe device; 21. Expansion joint; 22. Smoke delivery pipe; 23. Exhaust fan; 30. Oil receiving device; 31. Conical guide port; 32. Oil drain valve; 33. Oil receiving tank; 34. Exhaust pipe. DETAILED DESCRIPTION

[0039] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] In the description of this application, it should be understood that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0041] The terms "first," "second," and the like in this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0042] Example 1:

[0043] like Figure 1 and Figure 2As shown, a production method of ultra-thin low-stretch double-sided fabric special fiber is provided. 90dtex / 48F semi-gloss POY is transported to an ATF-1500 multi-spindle high-speed texturing machine via a corridor conveyor for production. The 90dtex / 48F semi-gloss POY raw yarn enters the first roller 3 of the ATF-1500 multi-spindle high-speed texturing machine through a raw yarn tube 4, and then passes through a twist stopper 6 → a non-contact high-temperature hot box 7 → a cooling and suction system 8 → a false twister 9 → an online tension detection system 10 → a second roller 11 → a network device 12 → an auxiliary roller 13 → a lower hot box 14 → a third roller 15 → a yarn detector 16 → an oil tanker 17 → a yarn separator 2 → a winding device 18. After inspection, the raw yarn is automatically packaged and stored in an assembly line and then shipped out.

[0044] Among them, processing speed (m / min) 910;

[0045] Stretch ratio 1.725±0.03;

[0046] The deformation temperature (℃) of the non-contact high-temperature hot box 7 includes the upper hot box long area 72255±3 and the upper hot box short area 71285±3;

[0047] The setting temperature of the lower hot box 14 (℃) is 167±3;

[0048] Tanker 17 speed (rpm) 0.55 ± 0.02;

[0049] The specifications of the 90dtex / 48F semi-gloss POY include:

[0050] Breaking strength: 2.69cN / dtex;

[0051] Elongation at break: 124.1%;

[0052] Oil content: 0.35%;

[0053] Online tension C-cut range 25%; tension CV value 2.5%;

[0054] The five silk paths at the twist stopper 6, the front of the twist stopper 6, the entrance of the false twister 9, the oil tanker 17, and the silk separator 2 all adopt an adjustable rotating porcelain wheel device 1, and a fixed porcelain device 5 is set on the two silk paths in front of the raw silk tube 4 and behind the first roller 3.

[0055] The "ultra-thin low-stretch double-sided fabric fiber" was developed on the TMT ATF-1500 multi-spindle high-speed "T"-type texturing machine. The 90dtex / 48F semi-gloss POY raw material is a custom-made semi-gloss fine-denier POY yarn produced through direct melt spinning. The texturizing oil is a 201B high-temperature resistant oil with an effective concentration of ≥98.0%. The fine-denier DTY production process was optimized through adjustments to the POY yarn's stretching, texturing, false twisting, and shaping processes, ensuring smooth product launch. The raw material is ultra-fine denier POY specifically supplied for direct melt spinning, and is conveyed via a continuous corridor to minimize human damage and ensure a high-quality supply. Production is carried out on the ATF-1500 multi-spindle high-speed texturing machine, which features a fully automatic doffing device. This ensures a consistent product length and weight, reduces manual errors, and saves labor costs. The texturing equipment is equipped with a single-spindle false twister 9, a single-spindle traverse control system and a full-process TCS2 tension monitoring system, which is conducive to the troubleshooting and maintenance of equipment failures. At the same time, it can monitor the intrinsic quality of the product in real time to ensure product quality and meet the requirements of high-end customers.

[0056] To ensure the product's exceptional processing properties, resulting in a light, smooth, and wrinkle-resistant double-sided fabric, the temperature ratio of the long and short hot rails in the "T" machine's variable heat box, as well as the suction SCP pressure, were adjusted to achieve significant heat dissipation and enhance downstream processing performance. By setting an appropriate interweaving pressure, interweaving effects were ensured, hairiness was reduced, and the fabric's style was improved. The table below shows the results of downstream processing samples with different process ratios:

[0057]

[0058] Among them, the processing speed of the invented product is 910m / min. Due to the high processing speed, the friction between the fiber monofilaments and the friction between the monofilaments and the components are enhanced, causing the monofilaments to break, forming hairiness and reducing the fiber strength, affecting the product quality and the quality of subsequent use. In order to solve this problem, the silk path was improved, and the original fixed porcelain parts were replaced with rotating porcelain parts, and dynamic friction was used instead of static friction, which greatly reduced the wear of the yarn bundle and improved the quality of the product. In particular, after the two silk paths in front of the original silk tube 4 and after the first roller 3 were added with a fixed porcelain device 5, seven silk paths were optimized, that is, the five silk paths at the anti-twist device 6, the front of the anti-twist device 6, the entrance of the false twister 9, the oil tanker 17, and the silk divider 2 were optimized to an adjustable rotating porcelain wheel device 1, and the two silk paths in front of the original silk tube 4 and after the first roller 3 were added with a fixed porcelain device 5, ensuring the stable processing performance and product quality.

[0059] This innovative product is made from semi-matt POY using a novel texturizing process. This process utilizes a linear yarn path, optimizes the temperature ratio between the long and short heat boxes, and employs a suction cooling system that combines natural cooling with cooling air, increasing the cooling rate and improving product quality. This innovative product features a light, smooth feel and even dyeing.

[0060] Compared to traditional texturing machines, the 1m-long, non-contact, high-temperature, short-heat oven is divided into two sections: a long zone and a short zone, creating favorable conditions for increased processing speed. The independent 60cm SCP cooling and extraction system 8 optimizes tow cooling and fume extraction, ensuring uniform dyeing. This new product's finishing process is suitable for ultra-thin, low-stretch, double-faced fabrics. The resulting double-faced fabrics are characterized by moisture wicking, quick drying, lightweight texture, soft and smooth feel, and wrinkle resistance. They are also extremely comfortable to wear and have good skin-friendliness. They can be used to produce a variety of fabrics through processes such as washing, calendering, coating, and lamination.

[0061] The method is further improved to prepare a special fiber product for ultra-thin low-stretch double-sided cloth as follows: product linear density (dtex / F) is 55dtex / 48F; linear density deviation rate is ±2.5; linear density variation coefficient CV value (%) ≤1.00; breaking strength (cN / dtex ≥3.30; breaking strength variation coefficient CV value (%) ≤6.00; breaking elongation (%) 21.0±3.0; breaking elongation variation coefficient CV value (%) ≤10.00; curl shrinkage (%) is 11.0 (1±20%); curl shrinkage variation coefficient (%) ≤7.00; curl stability (%) ≥68.0; boiling water shrinkage (%) 3.0±0.5; dyeing uniformity (gray card) / grade ≥4; oil content (%) 3.00±0.80; drum weight (net weight) kg is fixed weight or fixed length.

[0062] The product is used in the subsequent process for ultra-thin low-elastic double-sided fabric. The double-sided fabric produced has the characteristics of moisture absorption and perspiration removal, quick drying, light texture, soft and smooth touch, and not easy to wrinkle. At the same time, it is extremely comfortable to wear and has good skin-friendliness. It can be produced into various fabrics through water washing, calendering, coating, compounding and other processes.

[0063] 55dtex / 48F ultra-thin low-stretch yarn double-sided fabric special fiber inspection report

[0064]

[0065]

[0066] A further improvement is that the network wire gas source in the network device 12 is supplied by a high-low pressure dual-purpose centrifugal air compressor and a pneumatic automatic drainage device of a medium network gas cylinder filter element, and the pressure of the network device 12 is a medium network pressure of 0.4 bar.

[0067] In order to ensure the bundledness of the yarn bundle, a 0.4 bar mid-net pressure is added to meet the high-speed processing needs of downstream weaving customers. In the polyester production process, a high- and low-pressure dual-purpose centrifugal air compressor for the network yarn air source and a pneumatic automatic drainage device for the mid-net gas cylinder filter element are used to provide a stable air source, ensuring the stability of the air source, improving the intrinsic quality of the product, and enhancing the post-processing performance of the product; meeting the high-speed processing needs of downstream users. Compared with other varieties, it reduces or avoids the accumulation of water vapor in the network air source, ensuring the processing quality of the product. Compared with other processing methods, this process can meet customers' special processing requirements for products. The mid-net pressure is set to 0.4 bar (see Table 3),

[0068] Table 3 Sample conditions under different pressure conditions

[0069]

[0070]

[0071] At the same time, the ATF-1500 multi-spindle high-speed texturing machine adopts the structural improvements of "a TMT texturing machine IAD automatic doffing and beating arm device", "a clutch cylinder device for the IAD automatic doffing cradle", "a fan smoke exhaust duct device 20 of the texturing machine" and "a special device for adjusting the chuck blade of the TMT texturing machine" to ensure the stable, efficient operation and clean production of the new products. It improves the inherent quality of the product and enhances the post-processing performance of the product. In order to improve the use effect of the automatic doffing device, the utility model patents "a TMT texturing machine IAD automatic doffing and beating arm device" and "a clutch cylinder device for the IAD automatic doffing cradle" have been developed. Through the optimization and improvement of the equipment, not only the goals of fixed length and fixed weight of the product are guaranteed, but also the errors of manual operation are reduced, the labor intensity of employees is reduced, the noise is reduced, and the labor is reduced, which is in line with green manufacturing and intelligent manufacturing. The "special device for adjusting the chuck blade of the TMT texturizing machine" developed by the company facilitates equipment maintenance and repair, effectively solves the problem of difficult adjustment and unstable quality of the chuck blade, protects the bearings and gears of the false twister 9, and ensures smooth product production.

[0072] A further improvement is that the cooling suction system 8 adopts an SCP cooling suction system 8 that combines natural cooling and cooling air.

[0073] This new product features a faster processing speed and a higher deformation temperature. The high tow temperature results in a shorter stay in the cooling system, impacting the fixation and retention of the tow's shaping effect. Therefore, a SCP suction cooling system, combining natural cooling with cooling air, is employed to increase the cooling rate and achieve rapid fiber cooling. Specially arranged yarn guides within the SCP ensure yarn alignment. Similar to HTH, non-contact, low-tension operation reduces tow friction and significantly dissipates heat. The SCP's impact absorption mechanism absorbs sudden tension changes caused by factors such as yarn tailing, resulting in improved tow cooling and fume extraction, ensuring dyeing uniformity.

[0074] A further improvement is that the ATF-1500 multi-spindle high-speed texturing machine adopts a "T"-shaped yarn path for production, and the non-contact high-temperature hot box 7 adopts a zigzag arrangement of plug-ins.

[0075] This invention's product has specific requirements for yarn hairiness in the final stage. The ATF-1500FOUR multi-spindle high-speed texturing machine utilizes a "T"-shaped yarn path (straight yarn path) for production. The HTH non-contact high-temperature heating box (HTH) features a unique zigzag-shaped insert arrangement, achieving non-contact operation of the yarn bundle, preventing wear during heating and effectively reducing hairiness. The yarn strands only contact the long and short hot rail porcelain components within the texturing box. The cooling system utilizes a novel SCP (Spatial Precision) cooling mechanism, enabling rapid fiber cooling. The SCP's impact absorption mechanism absorbs sudden tension fluctuations caused by factors such as yarn tailing. Compared to similar equipment and different varieties, the zigzag-shaped insert arrangement in the non-contact high-temperature heating box (HTH) enhances stability and reduces friction by replacing the high-temperature resistant yarn guides with smaller, finer denier ones. These improvements address the issue of single-filament breakage and hairiness caused by network air pressure or friction during polyester fiber production, significantly reducing the yarn breakage rate and increasing the machine's uptime.

[0076] Example 2:

[0077] like Figure 2 and Figure 3 As shown, a production device for ultra-thin low-stretch double-sided fabric special fiber includes an ATF-1500 multi-spindle high-speed texturing machine. The top of the frame of the ATF-1500 multi-spindle high-speed texturing machine is provided with a fan exhaust duct device 20 connected to the equipment exhaust system outlet duct 19. The heat generated by the non-contact high-temperature hot box 7, SCP cooling suction system 8 and lower hot box 14 is discharged through the exhaust system and then enters the fan exhaust duct device 20 for secondary extraction.

[0078] The ATF-1500 multi-spindle high-speed texturing machine itself is equipped with an equipment exhaust system. The heat generated by the non-contact high-temperature hot box 7, the SCP cooling suction system 8 and the lower hot box 14 can be sucked through the exhaust system and discharged to the outside from the top outlet pipe. When producing ordinary products, the absence of the fan exhaust duct device 20 has no effect on the product. However, when producing ultra-thin low-elastic double-sided cloth special fiber products, since the exhaust systems at the head and tail of the existing ATF-1500 multi-spindle high-speed texturing machine are difficult to completely discharge the generated heat, the oily mixture generated by the cooling device in the existing equipment will reflux, resulting in a significant impact on the product after the reflux, thereby causing the product to have problems of hairiness and uneven dyeing in the later stage. Therefore, a fan exhaust duct device 20 connected to the equipment exhaust system outlet pipe 19 is provided on the top of the frame of the ATF-1500 multi-spindle high-speed texturing machine, wherein, in A fan exhaust duct device 20 is connected to each of the texturing machine's head and tail exhaust systems. When the exhaust system extracts and discharges heat generated by the non-contact high-temperature hot box 7, the SCP cooling suction system 8, and the lower hot box 14, the exhaust heat is secondary-assisted by the fan exhaust duct device 20. The fumes generated by the main texturing machine equipment after extraction are secondary-extracted by the fan exhaust duct device 20 of the main texturing machine equipment. This enhances extraction capacity while preventing fumes from remaining on-site. The secondary extraction and purification effectively prevents heat from circulating back into the working environment, thereby preventing hairiness and uneven dyeing in the product. Furthermore, a fan exhaust duct device 20 is connected to each of the head and tail exhaust systems of the texturing machine. The two fan exhaust duct devices 20 ensure more uniform absorption, allowing each device to control half of the texturing machine equipment, reducing mutual influence and enhancing stability.

[0079] A further improvement is that the fan smoke exhaust pipe device 20 includes a smoke exhaust fan 23, a smoke delivery pipe 22 connected to the inlet and outlet of the smoke exhaust fan 23, and an expansion joint 21 provided between the smoke delivery pipe 22 at the inlet end and the equipment smoke exhaust system outlet pipe 19.

[0080] The exhaust fan 23 is typically mounted on the top of the texturing machine via a bracket. The exhaust fan 23 is connected to the outlet duct 19 of the texturing machine's exhaust system via a smoke delivery duct 22. The outlet end of the exhaust fan 23 is connected to the outside or a smoke treatment and delivery duct via the smoke delivery duct 22. By replacing the original outlet exhaust duct with the exhaust fan 23 and the smoke delivery duct 22, the fumes generated after extraction by the main texturing machine equipment can be secondary extracted by the exhaust duct 20 of the main texturing machine equipment. This enhances the extraction capacity and effectively prevents heat from circulating back into the working environment, thereby preventing hairiness and uneven dyeing in the product. Furthermore, the smoke delivery duct 22 is constructed of a metal tube and is connected to the outlet duct 19 of the equipment's exhaust system via an expansion joint 21, simplifying the connection between the two pipe ends.

[0081] As a further improvement, an oil receiving device 30 is provided between the telescopic joint 21 and the equipment smoke exhaust system outlet pipe 19 .

[0082] During the secondary suction process through the fan smoke exhaust pipe device 20, there will inevitably be grease adhering to the smoke delivery pipe 22, and as time goes by, the oil will flow downward. When these oils flow into the equipment, it will cause the oil mixture to flow back, causing the oil mixture generated by the cooling device to flow back, which will have a significant impact on the product, thereby causing the product to have hairiness and uneven dyeing in the later stage. In order to avoid the backflow of the oil mixture, an oil receiving device 30 is added between the expansion joint 21 and the equipment smoke exhaust system outlet pipe 19. The oil receiving device 30 can collect the backflowing oil mixture in a centralized manner, thereby solving the problem of the backflow of the oil mixture in the existing equipment.

[0083] Among them, such as Figure 4 As shown, the oil receiving device 30 includes a cylindrical oil receiving groove 33, a conical guide port 31 provided at the top of the oil receiving groove 33, and an air outlet pipe 34 provided in the middle of the oil receiving groove 33. An oil drain valve 32 is provided on one side of the oil receiving groove 33, and the top of the air outlet pipe 34 extends into the telescopic joint 21.

[0084] The bottom of the oil receiving tank 33 is fixed to the outlet pipe 19 of the equipment smoke exhaust system by welding or threaded connection. When the oily mixture flows downward along the pipe wall of the expansion joint 21, the flowing oily mixture can be collected centrally through the oil receiving tank 33 and the oil drain valve 32 can be opened regularly for cleaning. The lower end of the oil receiving tank 33 adopts a cylindrical structure, which can make its internal volume larger, and the top of the oil receiving tank 33 forms a conical structure through the conical guide port 31, which can be conveniently connected and sealed with the end of the expansion joint 21. The gas flows upward through the outlet pipe 34 in the middle of the oil receiving tank 33, and the top of the outlet pipe 34 extends into the expansion joint 21, which can avoid the negative pressure adsorption reflux phenomenon caused by the gas on the oil, so that the oil can be effectively collected and cleaned. A further improvement is that the two ends of the expansion joint 21 are connected by a stainless steel expansion joint 21 with a flange seal, and the expansion joint 21 can withstand a pressure of 2.0 bar.

[0085] Since the oil mixture in the oil receiving tank 33 will exceed the installation surface of the expansion joint 21 and the oil receiving device 30 after accumulating to a certain extent, and the oil mixture has strong permeability, the accumulation amount will cause oil leakage or oil dripping problems. Therefore, conventional expansion joints are prone to cause internal pressure squeezing of the oil receiving tank 33 and oil penetration problems. By adopting a metal tube structure for the smoke delivery pipe 22 and improving the expansion joint 21 to withstand a pressure of 2.0 bar, the sealing and material properties of the expansion joint 21 are improved and avoided. It also ensures that the suction effect is stable and effective, and the stability is better. The stainless steel expansion joint 21 with flange sealing connection at both ends of the expansion joint 21 has better sealing and a more stable working environment after installation. It can avoid the problem of gaps or falling off after the expansion joint 21 is installed. Unlike other equipment, this fan exhaust duct assembly 20 features a removable stainless steel expansion joint 21 at the duct. Unlike similar equipment, this duct assembly is equipped with a stainless steel expansion joint 21 capable of withstanding a pressure of 2.0 bar. This prevents oil leakage from the expansion joint 21 even under pressure, minimizing oil backflow and ensuring stable and efficient operation. Furthermore, the innovative process employs two expansion joints at the front and rear, enhancing exhaust efficiency and ensuring uniformity in high-speed machining, ensuring product quality.

[0086] Further improvement: the ATF-1500 multi-spindle high-speed texturing machine includes a roller 3, a twist stopper 6, a first heat box, a suction cooling system, a false twister 9, an online tension detection system 10, two rollers 11, a network device 12, an auxiliary roller 13, a lower heat box 14, three rollers 15, a yarn detector 16, an oil tanker 17, a yarn separator 2 and a winding device 18. The feed end of the roller 3 is provided with a raw silk tube 4, and the twist stopper 6, the front of the twist stopper 6, the inlet of the false twister 9, the oil tanker 17 and the ceramic wheel device on the yarn separator 2 all adopt an adjustable rotating ceramic wheel device 1, and a fixed ceramic device 5 is provided on the silk path in front of the raw silk tube 4 and behind the roller 3.

[0087] When producing fiber monofilaments with a high processing speed, the existing porcelain wheel device will cause friction to the fiber, increase the friction between the monofilament and the components, cause the monofilament to break, form hairiness, reduce the fiber strength, and affect the product quality and the quality of subsequent use. In order to solve this problem, the silk path was improved, and the original fixed porcelain parts were replaced with rotating porcelain parts, and dynamic friction was used instead of static friction, which greatly reduced the wear of the yarn bundle and improved the quality of the product. In particular, after the two silk paths in front of the raw silk tube 4 and after the first roller 3 were added with a fixed porcelain device 5, seven silk paths were optimized, that is, the five silk paths at the anti-twist device 6, the front of the anti-twist device 6, the entrance of the false twister 9, the oil tanker 17, and the silk divider 2 were optimized to an adjustable rotating porcelain wheel device 1, and the two silk paths in front of the raw silk tube 4 and after the first roller 3 were added with a fixed porcelain device 5, ensuring the stable processing performance and product quality.

[0088] A further improvement is that the first hot box adopts a non-contact high-temperature hot box 7, the first hot box includes an upper hot box long zone 72 and an upper hot box short zone 71, the filament bundle enters from the upper hot box short zone 71 and is discharged through the upper hot box long zone 72, and the length of the suction cooling system is 60 cm.

[0089] The 1m-long, non-contact, high-temperature short-heat oven is divided into two sections: a long zone and a short zone, creating favorable conditions for increasing processing speed. The independent 60cm SCP cooling and extraction system 8 optimizes tow cooling and fume extraction, ensuring uniform dyeing. By adjusting the temperature ratio between the long and short-heat ovens and adopting a suction cooling system that combines natural cooling and cooling air, the cooling rate is increased, thereby improving product quality.

[0090] The above-mentioned embodiments are only preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by technicians in this field based on the present application shall fall within the scope of protection required by the present application.

Claims

1. A method for producing special fibers for ultra-thin low-elastic double-sided fabrics. The 90dtex / 48F semi-gloss POY is transported to the ATF-1500 multi-spindle high-speed texturing machine through a corridor conveying method for production. The 90dtex / 48F semi-gloss POY raw yarn enters the first roller (3) on the ATF-1500 multi-spindle high-speed texturing machine through the raw yarn tube (4), and then passes through the anti-twist device (6) → non-contact high-temperature hot box (7) → cooling and suction system (8) → false twist device (9) → online tension detection system (10) → second roller (11) → network device (12) → auxiliary roller (13) → lower hot box (14) → third roller (15) → yarn detector (16) → oil tanker (17) → yarn separator (2) → winding device (18), and then inspected → automatically packed and put into storage on the assembly line → sold and shipped out. in, Processing speed (m / min): 910; Stretch ratio 1.725±0.03; The deformation temperature (°C) of the non-contact high-temperature hot box (7) includes the upper hot box long area (72) 255±3, the upper hot box short area (71) 285±3; The setting temperature of the lower hot box (14) is 167±3°C; Tanker (17) speed (rpm) 0.55 ± 0.02; The specifications of the 90dtex / 48F semi-gloss POY include: Breaking strength: 2.69cN / dtex; Elongation at break: 124.1%; Oil content: 0.35%; Online tension C-cut range 25%; tension CV value 2.5%; The five silk paths, namely the twist stopper (6), the front of the twist stopper (6), the entrance of the false twister (9), the oil tanker (17), and the silk separator (2), all adopt an adjustable rotating porcelain wheel device (1), and the two silk paths, namely the front of the raw silk tube (4) and the back of the first roller (3), are provided with a fixed porcelain device (5).

2. The method for producing a special fiber for ultra-thin low-elastic double-sided fabric according to claim 1, characterized in that: The ultra-thin low-stretch double-sided cloth special fiber product prepared by the method has the following characteristics: product linear density (dtex / F) of 55dtex / 48F; linear density deviation rate of ±2.5; linear density variation coefficient CV value (%) ≤1.00; breaking strength (cN / dtex ≥3.30; breaking strength variation coefficient CV value (%) ≤6.00; breaking elongation (%) 21.0±3.0; breaking elongation variation coefficient CV value (%) ≤10.00; curl shrinkage (%) of 11.0 (1±20%); curl shrinkage variation coefficient (%) ≤7.00; curl stability (%) ≥68.0; boiling water shrinkage (%) 3.0±0.5; dyeing evenness (gray card) / grade ≥4; and oil content (%) 3.00±0.

80.

3. The method for producing a special fiber for ultra-thin low-elastic double-sided fabric according to claim 1, characterized in that: The network wire gas source in the network device (12) is supplied by a high-low pressure dual-purpose centrifugal air compressor and a pneumatic automatic drainage device of a middle network gas bottle filter element, and the pressure of the network device (12) is a middle network pressure of 0.4 bar.

4. The method for producing a special fiber for ultra-thin low-elastic double-sided fabric according to claim 1, characterized in that: The cooling suction system (8) adopts an SCP cooling suction system (8) that combines natural cooling and cooling wind.

5. The method for producing a special fiber for ultra-thin low-elastic double-sided fabric according to claim 1, characterized in that: The ATF-1500 multi-spindle high-speed texturing machine adopts a "T"-shaped yarn path for production, and the non-contact high-temperature hot box (7) adopts a zigzag arrangement of plug-ins.

6. A production device for ultra-thin low-stretch double-sided fabric fibers, comprising an ATF-1500 multi-spindle high-speed texturing machine, characterized by: A fan exhaust duct device (20) connected to an outlet duct (19) of the equipment exhaust system is provided on the top of the frame of the ATF-1500 multi-spindle high-speed texturing machine. Heat generated by the non-contact high-temperature hot box (7), the SCP cooling and suction system (8) and the lower hot box (14) is discharged through the exhaust system and then enters the fan exhaust duct device (20) for secondary extraction.

7. The production device of the special fiber for ultra-thin low-elastic double-sided fabric according to claim 6, characterized in that: The ATF-1500 multi-spindle high-speed texturing machine comprises a roller (3), a twist stopper (6), a first heat box, a suction cooling system, a false twister (9), an online tension detection system (10), two rollers (11), a network device (12), an auxiliary roller (13), a lower heat box (14), three rollers (15), a yarn detector (16), an oil wheel (17), a yarn separator (2) and a winding device (18). The feed end of the roller (3) is provided with a raw silk tube (4). The twist stopper (6), the front of the twist stopper (6), the inlet of the false twister (9), the oil wheel (17) and the upper porcelain wheel device of the yarn separator (2) all adopt an adjustable rotating porcelain wheel device (1). A fixed porcelain device (5) is provided on the silk path in front of the raw silk tube (4) and behind the roller (3).

8. The production device of the special fiber for ultra-thin low-elastic double-sided fabric according to claim 7, characterized in that: The first hot box adopts a non-contact high-temperature hot box (7), and the first hot box includes an upper hot box long zone (72) and an upper hot box short zone (71). The filament bundle enters from the upper hot box short zone (71) and is discharged through the upper hot box long zone (72). The length of the suction cooling system is 60 cm.

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