A process and system for producing cationic diamond composite polyester filament

Abstract

This invention discloses a production process and system for cationic polyester diamond composite polyester filament, relating to the field of chemical fiber production and processing technology. The process includes heating filamentous polyester MOY and filamentous cationic POY, followed by processing with diamond filament FDY via a false twister. This improves the gloss and abrasion resistance of the filamentous polyester MOY and filamentous cationic POY, thereby reducing fuzzing. The improved gloss and abrasion resistance filaments are then subjected to further heating treatment to further stabilize the fiber structure, eliminate internal stress, and enhance the stability of the cationic polyester diamond composite polyester filament.

Description

Technical Field

[0001] This invention relates to the field of chemical fiber production and processing technology, specifically to a process and system for producing cationic diamond composite polyester filament. Background Technology

[0002] Cationic polyester diamond composite polyester filament is a high-performance chemical fiber material formed by composite processing of polyester MOY (polyester pre-oriented yarn), cationic POY (cationic polyester pre-oriented yarn), and diamond FDY (diamond fully drawn yarn). It has the advantages of being easy to dye and not easy to fade.

[0003] Its preparation process is as shown in Chinese Patent Publication No. CN113293472B, which is entitled "A production process of a positive polyester diamond composite polyester white textured filament". The patent includes "the following steps: first feeding, first heating, false twisting, second feeding, network treatment, second heating, oiling, and winding".

[0004] However, existing production methods often result in quality problems such as fuzziness in the produced anodized diamond composite polyester filaments. To address these issues, we propose a production process and system for anodized diamond composite polyester filaments. Summary of the Invention

[0005] The purpose of this invention is to provide a production process and system for anodized diamond composite polyester filament to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A process for producing cationic diamond composite polyester filament includes the following steps:

[0008] Step 1: Heat-deform the filamentous polyester MOY to obtain the first filament; the heating temperature is 150℃-160℃;

[0009] Step 2: Heat-deform the filamentous cationic POY to obtain a second filament; the heating temperature is 185℃-190℃;

[0010] Step 3: The first filament from Step 1 and the filament-shaped diamond FDY filament are false-twisted using a false-twisting device to form the first intermediate line; the rotation speed is 1200r / min-1500r / min;

[0011] Step 4: The second filament from Step 2 and the filament-shaped diamond FDY filament are false-twisted together using a false-twisting device to form the second intermediate line; rotation speed 1200r / min-1500r / min;

[0012] Step 5: Perform UV protection treatment on the first intermediate thread from Step 3 to obtain the first composite filament;

[0013] Step 6: Perform antibacterial treatment on the second intermediate thread from Step 4 to obtain the second composite filament;

[0014] Step 7: Wrap the first composite yarn from Step 5 and the second composite yarn from Step 6 together to obtain a semi-finished yarn; the network density is 25-30 loops / meter;

[0015] Step 8: The semi-finished yarn from Step 7 is reheated in a heating box at a temperature of 180℃-230℃.

[0016] Step 9: The semi-finished yarn heated in Step 8 is intermittently oiled using an oiling device to obtain the finished yarn; the oiling amount is controlled between 0.7% and 0.95%.

[0017] Step 10: Wind the finished yarn from Step 9 into a yarn cake using a winding device at a winding speed of 3500-4300 m / min and a winding tension of <5%.

[0018] Step 11: Heat set the shredded cake from step 10.

[0019] Preferably, the specific method of antibacterial treatment in step 6 is as follows: the second intermediate line is soaked in an antibacterial agent at an ambient temperature of 20℃-30℃ for 3 to 5 minutes to obtain the second intermediate line a; then the second intermediate line a is soaked at an ambient temperature of 40℃-50℃ for 2 to 3 minutes to obtain the second intermediate line b; and the second intermediate line b is dried.

[0020] Preferably, the antibacterial agent comprises the following components by weight: 65-75 parts sodium dioctyl succinate sulfonate; 45-65 parts disodium ethylenediaminetetraacetate; 45-55 parts ammonium dodecylbenzenesulfonate; 10-20 parts polymethyl silicone resin; 12-35 parts zinc benzenesulfinate; 15-20 parts crosslinking agent; 14-22 parts softener; 40-60 parts chitosan; 200-300 parts deionized water; and 20-30 parts ethanol.

[0021] Preferably, the specific method for preparing the antibacterial agent is as follows:

[0022] The first step involves mixing the above-mentioned deionized water, ethanol, sodium dioctyl succinate sulfonate, disodium ethylenediaminetetraacetate, ammonium dodecylbenzenesulfonate, polymethyl silicone resin, and zinc benzenesulfinate in a reaction vessel and stirring at 30°C to 40°C for 10 to 20 minutes to obtain the first intermediate liquid a.

[0023] In the second step, the cross-linking agent, softener, and chitosan are added to the reaction vessel from the first step and stirred evenly at a temperature of 40℃ to 55℃ for 25 to 30 minutes to obtain an antibacterial solution.

[0024] A cationic diamond composite polyester filament production system is provided for implementing the above-mentioned cationic diamond composite polyester filament production process. The oiling equipment includes an oil tank, and the top of the oil tank is connected to two parallel branch cylinders. There is a gap space between the two branch cylinders for the finished filament to pass through. Each branch cylinder has a notch on its cylinder body facing the gap space. Each branch cylinder is equipped with an oiling roller unit, which can intermittently oil the finished filament.

[0025] Preferably, the oiling roller unit includes a hollow roller with a receiving cavity, a core tube movably passing through the middle of the hollow roller, one end of the core tube being fixed to the top of a branch cylinder, and the bottom end of the core tube being connected to an oil tank.

[0026] Preferably, a sponge pad is fixed on the wheel body on the side of the cavity wheel near the gap space. Multiple evenly distributed connecting holes are opened on the wheel body area covered by the sponge pad. Each connecting hole is provided with a cotton thread connected to the sponge pad, and each cotton thread is in contact with the inner bottom wall surface of the cavity of the cavity wheel.

[0027] Preferably, the core tube is provided with a cotton rope, the bottom end of which extends out of the core tube and is immersed in the oil in the oil tank. The core tube has a side opening above the cavity wheel, the top end of which extends out of the side opening, and the cavity wheel has a mesh opening at the top.

[0028] Preferably, one side of the mesh opening is provided with a squeezing plate fixed to the top of the cavity wheel, and the other side of the mesh opening is provided with a baffle fixed to the side of the shaft core tube. An absorbent cotton block fixed to a cotton rope is provided between the squeezing plate and the baffle. The oil that overflows from the absorbent cotton block under pressure enters the cavity of the cavity wheel through the mesh opening.

[0029] Preferably, the extrusion plate is fixed to the absorbent cotton block, and the cotton rope can move vertically in the core tube during the movement of the extrusion plate.

[0030] In the above technical solution, the present invention provides a production process for cationic polyester diamond composite polyester filament. After heating filamentous polyester MOY and filamentous cationic POY, they are then processed with diamond filament FDY through a false twister. This improves the gloss and abrasion resistance of the filamentous polyester MOY and filamentous cationic POY, thereby reducing the occurrence of fuzz. Then, the filamentous polyester MOY and filamentous cationic POY with improved gloss and abrasion resistance are heated again to further stabilize the fiber structure, eliminate internal stress, and further improve the stability of the cationic polyester diamond composite polyester filament.

[0031] By treating the filamentous polyester MOY with improved gloss and abrasion resistance with UV protection, and treating the filamentous cationic POY with improved gloss and abrasion resistance with antibacterial properties, the UV protection and antibacterial effects are enhanced, enriching the functionality of the cationic polyester diamond composite polyester. Furthermore, by winding the treated filamentous polyester MOY with cationic POY, the adhesion is improved, and the abrasion resistance, UV protection, antibacterial properties, and gloss are less likely to fade. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0033] Figure 1 This is a schematic diagram of the overall oiling equipment of a cationic diamond composite polyester filament production system according to the present invention.

[0034] Figure 2 This is a vertical cross-sectional view of the oil tank in a cationic diamond composite polyester filament production system of the present invention.

[0035] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Oil drum; 2. Branch cylinder; 3. Notch; 4. Oiling roller unit; 4.1. Hollow wheel; 4.2. Shaft core tube; 4.3. Sponge pad; 4.4. Connecting hole; 4.5. Cotton thread; 4.6. Cotton rope; 4.7. Side opening; 4.8. Mesh opening; 5. Extrusion plate; 6. Baffle; 7. Absorbent cotton block. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] The present invention provides a process for producing cationic diamond composite polyester filament, comprising the following steps:

[0040] Step 1: Heat-deform the filamentous polyester MOY to obtain the first filament; the heating temperature is 150℃-160℃;

[0041] Step 2: Heat-deform the filamentous cationic POY to obtain the second filament; the heating temperature is 185℃-190℃;

[0042] Step 3: The first filament from Step 1 and the filament-shaped diamond FDY filament are false-twisted using a false-twisting device to form the first intermediate line; the rotation speed is 1200r / min-1500r / min;

[0043] Step 4: The second filament from Step 2 and the filament-shaped diamond FDY filament are false-twisted together using a false-twisting device to form the second intermediate line; rotation speed 1200r / min-1500r / min;

[0044] Step 5: Perform UV protection treatment on the first intermediate thread from Step 3 to obtain the first composite filament;

[0045] Step 6: Perform antibacterial treatment on the second intermediate thread from Step 4 to obtain the second composite filament;

[0046] Step 7: Wrap the first composite yarn from Step 5 and the second composite yarn from Step 6 together to obtain a semi-finished yarn; the network density is 25-30 loops / meter;

[0047] Step 8: The semi-finished yarn from Step 7 is reheated in a heating box at a temperature of 180℃-230℃.

[0048] Step 9: The semi-finished yarn heated in Step 8 is intermittently oiled using an oiling device to obtain the finished yarn; the oiling amount is controlled between 0.7% and 0.95%.

[0049] Step 10: Wind the finished yarn from Step 9 into a yarn cake using a winding device at a winding speed of 3500-4300 m / min and a winding tension of <5%.

[0050] Step 11: Heat set the shredded cake from step 10.

[0051] Preferably, the specific method for antibacterial treatment in step 6 is as follows: the second intermediate line is soaked in an antibacterial agent at an ambient temperature of 20℃-30℃ for 3 to 5 minutes to obtain the second intermediate line a; then the second intermediate line a is soaked at an ambient temperature of 40℃-50℃ for 2 to 3 minutes to obtain the second intermediate line b; and the second intermediate line b is dried.

[0052] Preferably, the antibacterial agent comprises the following components by weight: 65-75 parts sodium dioctyl succinate sulfonate; 45-65 parts disodium ethylenediaminetetraacetate; 45-55 parts ammonium dodecylbenzenesulfonate; 10-20 parts polymethyl silicone resin; 12-35 parts zinc benzenesulfinate; 15-20 parts crosslinking agent; 14-22 parts softener; 40-60 parts chitosan; 200-300 parts deionized water; and 20-30 parts ethanol.

[0053] Preferred method for preparing antibacterial agents:

[0054] The first step involves mixing the above-mentioned deionized water, ethanol, sodium dioctyl succinate sulfonate, disodium ethylenediaminetetraacetate, ammonium dodecylbenzenesulfonate, polymethyl silicone resin, and zinc benzenesulfinate in a reaction vessel and stirring at 30°C to 40°C for 10 to 20 minutes to obtain the first intermediate liquid a.

[0055] In the second step, the cross-linking agent, softener, and chitosan are added to the reaction vessel from the first step and stirred evenly at a temperature of 40℃ to 55℃ for 25 to 30 minutes to obtain an antibacterial solution.

[0056] Please see Figure 1 - Figure 3 This embodiment provides a cationic diamond composite polyester filament production system, which is used to realize the above-mentioned cationic diamond composite polyester filament production process. The oiling equipment includes an oil tank 1, which is arranged vertically. The top of the oil tank 1 is connected to two parallel branch cylinders 2. The axis of the branch cylinders 2 is parallel to the axis of the oil tank 1. There is a gap space between the two branch cylinders 2 for the semi-finished yarn to pass through. Each branch cylinder 2 has a notch 3 on its cylinder body facing the gap space. Each branch cylinder 2 is equipped with an oiling roller unit 4. The oiling roller unit 4 can intermittently oil the semi-finished yarn.

[0057] The oiling roller unit 4 includes a hollow roller 4.1 with a receiving cavity. The plane of the hollow roller 4.1 is parallel to the axis of the oil tank 1. A core tube 4.2 is movably inserted through the middle of the hollow roller 4.1. One end of the core tube 4.2 is fixed to the top of the branch tube 2. The bottom end of the core tube 4.2 is connected to the oil tank 1. There is a space between the bottom end of the core tube 4.2 and the bottom of the oil tank 1.

[0058] Furthermore, a sponge pad 4.3 is fixed on the wheel body of the cavity wheel 4.1 near the gap space. The sponge pad 4.3 is long and narrow, and it is fixed to the wheel surface of the wheel body. Multiple evenly distributed connecting holes 4.4 are opened on the wheel body area covered by the sponge pad 4.3. Each connecting hole 4.4 is provided with a cotton thread 4.5 connected to the sponge pad 4.3. Each cotton thread 4.4 is in contact with the inner bottom wall of the cavity of the cavity wheel 4.1.

[0059] It should be noted that a cotton rope 4.6 is provided inside the shaft core tube 4.2. The bottom end of the cotton rope 4.6 extends out of the bottom end of the shaft core tube 4.2 and is immersed in the oil in the oil tank 1. A side opening 4.7 is provided on the shaft core tube 4.2 above the cavity wheel 4.1. The top end of the cotton rope 4.6 extends out of the side opening 4.7. A mesh opening 4.8 is provided on the top of the cavity wheel 4.1.

[0060] Furthermore, one side of the mesh opening 4.8 is provided with a compression plate 5 fixed to the top of the cavity wheel 4.1, and the other side of the mesh opening 4.8 is provided with a baffle 6 fixed to the side of the shaft core tube 4.2. Both the compression plate 5 and the baffle 6 are perpendicular to the wheel body plane of the cavity wheel 4.1. Between the compression plate 5 and the baffle 6, there is an absorbent cotton block 7 fixed to the cotton rope 4.6. The oil that overflows from the absorbent cotton block 7 under compression enters the receiving cavity of the cavity wheel 4.1 through the mesh opening 4.8.

[0061] Preferably, the extrusion plate 5 is fixed to the absorbent cotton block 7, and the cotton rope 4.6 can move vertically in the core tube 4.2 during the movement of the extrusion plate 5.

[0062] In actual use, the cotton rope 4.6 has a capillary effect, thereby transporting the oil in the oil tank 1 to the absorbent cotton block 7, so that the absorbent cotton block 7 absorbs and stores the oil. Each of the two branch cylinders 2 has a cavity wheel 4.1. The sponge pad 4.3 on the cavity wheel 4.1 is in contact with the sponge pad 4.3 on the other cavity wheel 4.1 which is mirror-distributed. The sponge pad 4.3 has oil on it, and the semi-finished filament slides through the two contacting sponge pads 4.3, so that the semi-finished filament can be attached with oil, thereby completing the oiling process.

[0063] As the semi-finished filament continues to slide, the oil on the sponge pad 4.3 decreases, and the amount of oil that the semi-finished filament can adhere to also decreases. As a result, the friction between the semi-finished filament and the sponge pad 4.3 increases. When the friction increases to a certain extent, the semi-finished filament can drive the cavity wheel 4.1 to rotate in the positive direction through the sponge pad 4.3.

[0064] When the cavity wheel 4.1 is rotated in the forward direction, the distance between the extrusion plate 5 and the baffle 6 decreases, thereby squeezing the oil in the absorbent cotton block 7. During the squeezing process, the absorbent cotton block 7 moves towards the baffle 6 along with the extrusion plate 5. At the same time, the cotton rope 4.6 also moves upward along the shaft tube 4.2. During the upward movement of the cotton rope 4.6, the bottom end of the shaft tube 4.2 squeezes and reduces the oil extending from the bottom end of the cotton rope 4.6, thereby reducing the load on the cotton rope 4.6 during the upward movement.

[0065] The extruded oil enters the cavity of the hollow wheel 4.1 through the mesh opening 4.8. Then, the sponge pad 4.3 capillarily absorbs the oil in the cavity through the cotton thread 4.4, thereby replenishing the oil in the sponge pad 4.3. After replenishing the oil, the friction between the sponge pad 4.3 and the semi-finished yarn is restored to a minimum.

[0066] As the capillary absorption of oil by the cotton rope 4.6 increases, it falls along the shaft tube 4.2 under the action of gravity. At this time, the cotton rope 4.6 pulls the extrusion plate 5 by adsorbing the cotton block 7, thereby increasing the distance between the extrusion plate 5 and the baffle 6. The cavity wheel 4.1 deflects in the opposite direction until the extrusion plate 5 returns to its initial position.

[0067] In other words, the amount of oil applied during the oiling process of the semi-finished yarn varies regularly throughout the entire process, allowing the oil to undergo capillary dispersion on the semi-finished yarn. This results in the oil being evenly distributed on the yarn surface, which is more conducive to forming a uniform oil film and improving the yarn's antistatic properties, smoothness, and abrasion resistance. Compared to existing continuous oiling methods, this solution utilizes the physical properties of capillary action inherent in the yarn itself, making the oil distribution on the yarn more uniform and improving the stability of the oiling process. Furthermore, the entire oiling process can automatically replenish oil in real time based on changes in the amount of oil adhering to the yarn, making it simple to operate and structurally stable.

[0068] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A system for producing a positive-tapered diamond composite polyester filament, comprising an oiling device, characterized in that, The oiling equipment comprises an oil tank (1), two parallel branch cylinders (2) are communicated at the top of the oil tank (1), the branch cylinders (2) are provided with a gap space for the yarn to pass through, a notch (3) is formed in the cylinder body of each branch cylinder (2) towards the gap space, and an oiling roller unit (4) is arranged in each branch cylinder (2), and the oiling roller unit (4) can intermittently oil the yarn; The oiling roller unit (4) comprises a cavity wheel (4.1) provided with a containing cavity, a shaft core pipe (4.2) movably penetrates the middle part of the cavity wheel (4.1), one end of the shaft core pipe (4.2) is fixed to the top of the branch cylinder (2), and the bottom end of the shaft core pipe (4.2) is communicated with the oil tank (1); A sponge pad (4.3) is fixed to the wheel body on the side of the cavity wheel (4.1) close to the gap space, a plurality of uniformly distributed communication holes (4.4) are formed in the wheel body area covered by the sponge pad (4.3), a cotton thread (4.5) connected with the sponge pad (4.3) is arranged in each communication hole (4.4), and each cotton thread (4.5) is in contact with the inner bottom wall surface of the containing cavity of the cavity wheel (4.1); A cotton rope (4.6) is arranged in the shaft core pipe (4.2), the bottom end of the cotton rope (4.6) extends out of the bottom end of the shaft core pipe (4.2) and is immersed in the oil in the oil tank (1), a side opening (4.7) is formed in the shaft core pipe (4.2) above the cavity wheel (4.1), the top end of the cotton rope (4.6) extends out of the side opening (4.7), and a mesh opening (4.8) is formed in the top of the cavity wheel (4.1); One side of the mesh opening (4.8) is provided with a pressing plate (5) fixed to the top of the cavity wheel (4.1), the other side of the mesh opening (4.8) is provided with a baffle (6) fixed to the side surface of the shaft core pipe (4.2), the pressing plate (5) and the baffle (6) are provided with an adsorbing cotton block (7) fixed to the cotton rope (4.6), and the oil overflowed by the adsorbing cotton block (7) under extrusion enters the containing cavity of the cavity wheel (4.1) through the mesh opening (4.8); The pressing plate (5) and the adsorbing cotton block (7) are fixed, and the cotton rope (4.6) in the shaft core pipe (4.2) can move vertically correspondingly during the movement of the adsorbing cotton block (7) under the extrusion of the pressing plate (5).

2. A system for producing positive-tapered diamond composite polyester filaments according to claim 1, wherein The production process of the polyester long filament with positive and diamond composite also comprises the following steps: Step 1, heating and deforming the filament-shaped polyester MOY to obtain a first yarn; the heating temperature is 150-160 DEG C; Step 2, heating and deforming the filament-shaped cationic POY to obtain a second yarn; the heating temperature is 185-190 DEG C; Step 3, twisting the first yarn in step 1 and the filament-shaped diamond FDY through a false twister to form a first intermediate thread; the rotating speed is 1200-1500 r / min. Step 4, the second yarn in step 2 is false twisted with the diamond-shaped yarn FDY through a false twister to form a second intermediate yarn; the rotating speed is 1200r / min-1500r / min; Step 5, the first intermediate yarn in step 3 is treated with anti-ultraviolet light to obtain a first composite yarn; Step 6, the second intermediate yarn in step 4 is treated with antibacterial treatment to obtain a second composite yarn; Step 7, the first composite yarn in step 5 and the second composite yarn in step 6 are wound through a network to obtain a semi-finished yarn; the network degree is 25-30 / m; Step 8, the semi-finished yarn in step 7 is heated again through a heating box; the heating temperature is 180℃-230℃; Step 9, the semi-finished yarn after heating in step 8 is intermittently oiled through the oiling equipment to obtain a finished yarn; the oiling amount is controlled at 0.7%-0.95%; Step 10, the finished yarn in step 9 is wound into a yarn cake through a winding device; the winding speed is 3500-4300m / min, and the winding tension is <5%; Step 11, the yarn cake in step 10 is heat set.

3. A system for producing positive-tapered diamond composite polyester filaments according to claim 2, wherein The specific method of the antibacterial treatment in step 6 is that the second intermediate yarn is soaked with an antibacterial agent; the soaking environment temperature is 20℃-30℃, the soaking time is 3-5 minutes, the second intermediate yarn a is obtained, then the second intermediate yarn a is soaked at an environment temperature of 40℃-50℃ for 2-3 minutes to obtain the second intermediate yarn b, and the second intermediate yarn b is dried.

4. A system for producing positive-tapered diamond composite polyester filaments according to claim 3, wherein The antibacterial agent comprises the following components by weight: 65-75 parts of sodium dioctyl sulfosuccinate; 45-65 parts of disodium ethylenediaminetetraacetate; 45-55 parts of ammonium dodecylbenzenesulfonate; 10-20 parts of polymethylsilicone resin; 12-35 parts of zinc benzene sulfinate; 15-20 parts of crosslinking agent; 14-22 parts of softener; 40-60 parts of chitosan; 200-300 parts of deionized water; and 20-30 parts of ethanol.

5. A system for producing positive-tapered diamond composite polyester filaments according to claim 4, wherein The specific preparation method of the antibacterial agent is as follows: First step, the deionized water, ethanol, sodium dioctyl sulfosuccinate, disodium ethylenediaminetetraacetate, ammonium dodecylbenzenesulfonate, polymethylsilicone resin, and zinc benzene sulfinate are mixed in a reaction kettle, and stirred uniformly at a temperature of 30℃-40℃ for 10-20 minutes to obtain a first intermediate liquid a; Second step, the crosslinking agent, softener, and chitosan are added into the reaction kettle in the first step, and stirred uniformly at a temperature of 40℃-55℃ for 25-30 minutes to obtain an antibacterial agent solution.

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