Method for producing a same-board different-hole different-diameter moisture-absorbing and sweat-releasing imitative wool fiber and special equipment

Abstract

The present application relates to the technical field of spinning, in particular to a production method of same-plate different-hole different-diameter moisture absorption and sweat releasing imitated wool fiber, which specifically comprises the following steps: first, semi-gloss polyester melt is taken as raw material and is delivered to a spinning box; second, the semi-gloss polyester melt after entering the spinning box is extruded through a spinneret, passes through a windless zone, and then is cooled and solidified into a primary fiber through side blowing; third, the primary fiber is oiled through a spinning oil nozzle, a guide hook, a duct, a pre-networking device, a GR1 hot roller, a GR2 hot roller, a filament separating needle and a main networking device, and finally is wound into a finished product by a winding machine, thereby obtaining the finished product. The present application also discloses a special device for the production method. The production method of same-plate different-hole different-diameter moisture absorption and sweat releasing imitated wool fiber and the special device have the advantages that the imitated wool fiber has good pile effect, high hollow degree and high profile degree, and therefore the fabric made of the imitated wool fiber has strong loftiness and warmth retention.

Description

Technical Field

[0001] This invention relates to the field of spinning technology, and in particular to a method and special equipment for producing moisture-wicking and sweat-absorbing imitation wool fibers with different pore sizes on the same plate. Background Technology

[0002] Currently, wool-like fibers are mainly used to make products with excellent warmth retention, but these products have poor breathability. Key factors affecting the warmth retention of fibers are their pile density, shape profile, and unique hollowness. Higher pile density, shape profile, and hollowness result in better warmth retention, but poor breathability in these products affects comfort. To improve the breathability and comfort of warm products, it is necessary to increase the pile density, shape profile, and hollowness of the fibers during the production process; however, existing equipment and processes are insufficient to meet these requirements. Summary of the Invention

[0003] To address the shortcomings of the aforementioned technologies, this invention provides a method and specialized equipment for producing moisture-wicking and perspiration-absorbing imitation wool fibers with different pore sizes on the same board. The imitation wool fibers produced have good plushness, hollowness, and irregularity, thereby improving the warmth retention, breathability, and comfort of the garment.

[0004] This invention discloses a method for producing moisture-wicking, wool-like fibers, specifically including the following steps:

[0005] Step 1: Using semi-dull polyester melt as raw material, the semi-dull polyester melt with an initial temperature of 278-280℃ is pressurized to 180-200 bar by a booster pump through a melt conveying pipeline and then sent to a melt cooler. The melt cooler cools the temperature of the semi-dull polyester melt to 276-278℃, and then the semi-dull polyester melt is conveyed to a spinning box with a temperature maintained at 286-289℃ through a melt conveying pipeline.

[0006] Step 2: The semi-dull polyester melt after entering the spinning box enters the metering pump through the melt distribution pipe. After being accurately metered by the metering pump, it enters the spinning assembly through the melt distribution branch pipe. The accurately metered melt in the spinning assembly is filtered and extruded through the spinneret. It passes through the windless zone and is then cooled and solidified into nascent fibers by side blowing air.

[0007] The structure of the spinneret holes on the spinneret plate is as follows: it includes a cross-shaped hole, and two C-shaped holes are provided on both sides of the cross-shaped hole. The openings of the two C-shaped holes on the same side are arranged opposite each other to form a circular structure, and there is a gap between the two C-shaped holes.

[0008] The installation requirements for the spinneret inside the spinning box are as follows: under normal installation conditions, the entire spinneret should be rotated 30° clockwise.

[0009] In the side-blowing cooling system, the height of the windless zone is 60mm, the air temperature is 24℃, and the air velocity is 0.65m / min.

[0010] Step 3: The nascent fibers are oiled through the spinning nozzle, guided by the yarn hook, the channel, the pre-networker, the GR1 hot roller, the GR2 hot roller, the yarn separating needle, and the main networker. Finally, they are wound into shape by the winding machine to obtain the finished product.

[0011] The upper part of the tunnel is equipped with a wind deflector that blows air into the tunnel to cool the silk bundles again.

[0012] The pre-network device is moved 30cm outward from the normal installation position. When the filament bundle enters the GR1 hot roller through the pre-network device, the filament bundle forms a 40° angle with the vertical direction. The filament separating needle is moved 50cm outward from the normal installation position.

[0013] The pressure of the pre-networker is 0.08 bar, the pressure of the main networker is 4 bar, the speed of the GR1 hot roller is 4300 m / min, the speed of the GR2 hot roller is 4560 m / min, the winding speed is 4500 m / min, and neither the GR1 nor the GR2 hot roller is heated.

[0014] A special equipment for the production method of the above-mentioned moisture-wicking imitation wool fiber is provided, which customizes the spinneret with irregularly shaped spinneret in the conventional spinning box. The spinneret structure is as follows: it includes a cross-shaped hole, and two C-shaped holes are provided on both sides of the cross-shaped hole. The openings of the two C-shaped holes on the same side are arranged opposite each other to form a circular structure, and there is a gap between the two C-shaped holes.

[0015] The installation requirements for the spinneret inside the spinning box are as follows: under normal installation conditions, the entire spinneret should be rotated 30° clockwise.

[0016] In the side-blowing cooling system, the height of the windless zone is 60mm.

[0017] A wind deflector is installed at the upper end of the tunnel, which blows air into the tunnel to cool the silk bundles again.

[0018] The pre-network device is moved 30cm outward from the normal installation position. When the control yarn enters the GR1 hot roller through the pre-network device, the yarn makes a 40° angle with the vertical direction. The yarn separating needle is moved 50cm outward from the normal installation position.

[0019] The main networker uses a Ф1.6 network nozzle.

[0020] In this application, the existing equipment refers to the chemical fiber spinning equipment manufactured by Beijing Zhongli Chemical Fiber Machinery Co., Ltd.

[0021] The present invention provides a method and special equipment for producing moisture-wicking and perspiration-absorbing imitation wool fibers with different pore sizes on the same plate. The imitation wool fibers produced have a good fleece feel, high hollowness and irregularity of the fibers, so the fabrics made from them are fluffy and have strong warmth retention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the planar structure of the spinneret of the present invention;

[0023] Figure 2 This is a schematic diagram comparing the installation angle of the spinneret of the present invention with the installation status of existing equipment.

[0024] Figure 3 This is a schematic diagram comparing the pre-network front structure of the present invention with the pre-network front structure of existing devices;

[0025] Figure 4 This is a schematic diagram comparing the pre-network side structure of the present invention with the pre-network side structure of existing devices;

[0026] Figure 5 This is a schematic diagram of the production process of the present invention. Detailed Implementation

[0027] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0028] Example 1:

[0029] like Figure 5 As shown, this invention discloses a method for producing moisture-wicking, sweat-absorbing imitation wool fibers, specifically including the following steps:

[0030] Step 1: Using semi-dull polyester melt PET as raw material, the semi-dull polyester melt with an initial temperature of 278°C is pressurized to 180 bar by the booster pump 13 through the melt conveying pipe 12 and then sent to the melt cooler 14. The melt cooler 14 cools the temperature of the semi-dull polyester melt to 276°C, and then the semi-dull polyester melt is conveyed to the spinning box 15 with the temperature maintained at 286°C through the melt conveying pipe 12.

[0031] Of course, in other embodiments, the initial temperature of the semi-dull polyester melt can be any value within the range of 279°C, 280°C, or 270-280°C; the booster pressure of the booster pump 13 on the semi-dull polyester melt can also be any value within the range of 185 bar, 190 bar, 200 bar, or 180-200 bar; the melt cooler 14 cools the semi-dull polyester melt to any value within the range of 277°C, 278°C, or 276-278°C; and the temperature of the spinning box 15 can be maintained at any value within the range of 287°C, 288°C, 289°C, or 286-289°C.

[0032] The temperature of the spinning box 15 is increased by 10°C, the melt viscosity is increased, and the hollowness of the fiber is increased from the existing 13.66% to more than 20% in this embodiment, thus greatly improving the heat retention performance of the fiber.

[0033] Step 2: The semi-dull polyester melt after entering the spinning box 15 enters the metering pump through the melt distribution pipe. After being accurately metered by the metering pump, it enters the spinning assembly through the melt distribution branch pipe. The accurately metered melt in the spinning assembly is filtered and extruded through the spinneret. It passes through the windless zone 16 and then passes through the laminar flow 17 and the side blowing 18 plate for cooling and solidification into nascent fibers.

[0034] The arrangement of the spinneret orifices on the spinneret plate can be concentric circles, stars, rhombuses, etc., and is not limited in this application. The product specification of this embodiment is 224 detx, and the spinneret plate is Ф75.

[0035] like Figure 1 As shown, the structure of the spinneret holes on the spinneret plate is as follows: it includes a cross-shaped hole, and two C-shaped holes are provided on both sides of the cross-shaped hole. The openings of the two C-shaped holes on the same side are arranged opposite each other to form a circular structure, and there is a gap between the two C-shaped holes. The above design of the spinneret holes improves the irregularity of the filament bundle.

[0036] like Figure 2 As shown, the installation requirements for the spinneret in the spinning box 15 are as follows: under normal installation conditions, the entire spinneret is rotated 30° clockwise. Rotating the assembly method of the spinneret by 30° can reduce the cooling area of ​​the filament bundle. The purpose is to increase the asymmetric cooling of the filament bundle and greatly improve the crimping and shaping effect.

[0037] The height of the windless zone 16 is 60mm, and the side-blowing air 18 is in the cooling process with an air temperature of 24℃ and an air speed of 0.65m / min.

[0038] The aforementioned windless zone 16 and side blowing 18 can change the penetration ability of the cooling air to the filament bundle, so as to ensure the melt extrusion expansion and bonding.

[0039] Step 3: The nascent fibers are oiled through the spinning nozzle 19, the guide hook, the channel 20, the pre-networker 4, the GR1 hot roller 7, the GR2 hot roller 9, the splitting roller 8, and the main networker 10. Finally, the fibers are wound into shape by the winding machine 11 to obtain the finished product. The surface pressure of the winding machine 11 is adjusted to 220-250CN.

[0040] The upper end of the passageway 20 is equipped with a wind plate 21, which blows air into the passageway 20 to cool the filament bundle again.

[0041] The process involves rotating the wire guide bar 1 by 180°, removing the annular wire guide hook 2 and ceramic rod 3, and removing the wire separating roller of the GR1 hot roller 7.

[0042] Among them, the pre-network device 4 is moved outward by 30cm from the normal installation position, and when the control yarn passes through the pre-network device 4 and enters the GR1 hot roller 7, the yarn makes a 40° angle with the vertical direction, and the yarn separating needle 5 is moved outward by 50cm from the normal installation position.

[0043] The pressure of the pre-networker 4 is 0.08 bar, the pressure of the main networker 10 is 4 bar, the speed of the GR1 hot roller 7 is 4300 m / min, the speed of the GR2 hot roller 9 and the splitting roller is 4560 m / min, the winding speed is 4500 m / min, and neither the GR1 hot roller 7 nor the GR2 hot roller 9 is heated.

[0044] The filament separating roller 6 of GR1 hot roller 7 is removed, while the filament separating roller of GR2 hot roller 9 continues to be used to ensure the balance of filament tension and good unwinding. The spinning oil nozzle 19 controls the oil content of the product to 1.0% during the oiling process of the filament bundle.

[0045] The fiber obtained in this embodiment has the following main technical indicators: monofilament strength of 1.8 CN / dtex, breaking elongation of 47%, yarn unevenness (CV value%) of 2.2%, and oil content of 1.0%.

[0046] Table 1 below compares the hollowness data of fibers produced by existing equipment and processes with those produced in this embodiment:

[0047]

[0048] Example 2:

[0049] A special equipment for the production method of moisture-wicking imitation wool fiber in Example 1, wherein the spinneret is customized with irregularly shaped spinneret in the conventional spinning box 15. The spinneret structure is as follows: including a cross-shaped hole, and two C-shaped holes are provided on both sides of the cross-shaped hole. The openings of the two C-shaped holes on the same side are arranged opposite each other to form a circular structure, and there is a gap between the two C-shaped holes.

[0050] The installation requirements for the spinneret inside the spinning box 15 are as follows: under normal installation conditions, the entire spinneret should be rotated 30° clockwise.

[0051] In the side-blowing cooling section 18, the height of the windless zone 16 is 60mm.

[0052] The upper end of the passageway 20 is equipped with a wind plate 21, which blows air into the passageway 20 to cool the filament bundle again.

[0053] The pre-network device 4 is moved 30cm outward from its normal installation position. When the control yarn passes through the pre-network device 4 and enters the GR1 hot roller 7, the yarn makes a 40° angle with the vertical direction. The yarn separating needle 5 is moved 50cm outward from its normal installation position.

[0054] The main network device 10 is replaced with a Ф1.2 main network nozzle from the existing equipment to a Ф1.6 network nozzle to improve the smoothness of unwinding in subsequent processing and the speed and efficiency of weaving.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for producing a moisture-absorbing and perspiration-dissipating wool-like fiber, comprising the following steps: Step 1: Using a semi-gloss polyester melt as a raw material, the semi-gloss polyester melt with an initial temperature of 278-280℃ is pressurized to 180-200 bar by a melt conveying pipeline through a booster pump and then sent to a melt cooler, which cools the temperature of the semi-gloss polyester melt to 276-278℃, and then the semi-gloss polyester melt is conveyed to a spinning beam with a temperature maintained at 286-289℃ through a melt conveying pipeline; Step 2: The semi-gloss polyester melt entering the spinning beam passes through a melt distribution pipeline into a metering pump, is accurately metered by the metering pump, and then passes through a melt distribution branch pipeline into a spinning assembly, where the accurately metered melt is filtered and then extruded through a spinneret, passes through a windless zone, and then is cooled and solidified into a primary fiber by side blowing; The features are: The structure of the spinning holes on the spinneret is as follows: including a cross-shaped hole, two C-shaped holes are arranged on both sides of the cross-shaped hole, the openings of the two C-shaped holes on the same side are oppositely arranged to form a circular structure, and there is a gap between the two C-shaped holes; The installation requirement of the spinneret in the spinning beam is that the whole is rotated by 30° in the clockwise direction in the normal installation state; The height of the windless zone is 60 mm, and in the side blowing cooling, the air temperature is 24℃ and the air speed is 0.65 m / min; Step 3: The primary fiber is oiled by a spinning oil nozzle, guided by a guide hook, passes through a duct, a pre-networking device, a GR1 hot roller, a GR2 hot roller, a filament separating roller, a main networking device, and is finally wound by a winding machine to form a finished product; The upper end of the duct is provided with an air plate that blows air into the duct to cool the tow again; The pre-networking device is translated outward from the normal installation position by 30 cm, and the control tow forms an angle of 40° with the vertical direction when it passes through the pre-networking device into the GR1 hot roller, and the filament separating needle is translated outward from the normal installation position by 50 cm; The pressure of the pre-networking device is 0.08 bar, the pressure of the main networking device is 4 bar, the speed of the GR1 hot roller is 4300 m / min, the speed of the GR2 hot roller is 4560 m / min, the winding speed is 4500 m / min, and neither the GR1 hot roller nor the GR2 hot roller is heated; the main networking device uses a Ф1.6 networking nozzle.

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