Preparation method of anti-static polyethylene yarn and yarn

Abstract

The invention relates to a preparation method of anti-static polyethylene yarn and the yarn, polyethylene yarn raw materials are treated with a silver ion solution and dried, and in the drying process, the silver ion solution leached from the polyethylene yarn raw materials and the polyethylene yarn raw materials are repeatedly dripped and moistened through a dryer assembly. According to the preparation method, yarn is dried by adopting an annular rotating dryer assembly, a collecting assembly is arranged on the annular circumference of the dryer assembly, when the collecting assembly rotates to the lower portion, an opening faces upwards, and a solution drained from the yarn drips onto the yarn on the lower portion till the solution drips to the bottommost portion and enters a collecting groove; when the collecting tank rotates to the upper portion, due to the water storage effect of the water storage baffle, the mesh slides to close the opening, then a solution penetrates through the mesh and slowly drips to the surface of the yarn, water is continuously evaporated in a repeated infiltration mode, and most effective anti-static components are reserved.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing yarns, and particularly relates to a preparation method and yarn of an antistatic polyethylene yarn. Background Art

[0002] Due to its excellent physical properties and processing performance, polyethylene yarn has become a key material for many products in the textile field. However, for antistatic requirements, in the traditional polyethylene yarn manufacturing process, the antistatic method generally involves treating the polyethylene yarn with a silver ion solution and then drying it.

[0003] During the treatment process, the yarn is generally wound into a roll or formed into a hank for treatment with the silver ion solution, and then stacked and hung for drying. The drying process generally consists of two steps. First, water is drained, and then it is dried in a dryer. However, the polyethylene yarn itself has poor hydrophilic ability, and a large amount of solution is lost after water drainage, resulting in less retained silver ions. If it is directly dried without water drainage, the drying process cannot be completed immediately, and a large amount of water will also be drained, resulting in insufficient antistatic ability. Summary of the Invention

[0004] The purpose of the present invention is to provide a preparation method and yarn of an antistatic polyethylene yarn to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions:

[0006] A preparation method of an antistatic polyethylene yarn includes the following steps:

[0007] S1: Melting, extruding, cooling and solidifying, and stretching and shaping a polyethylene resin raw material to form a polyethylene yarn raw material;

[0008] S2: Winding the polyethylene yarn raw material into a hank, and treating the hank with a silver ion solution;

[0009] S3: Using a dryer assembly to dry a plurality of hanks after being treated with the silver ion solution. During the drying process, the dryer assembly is used to repeatedly drip the silver ion solution drained from the hanks onto the hanks;

[0010] The dryer assembly is composed of an annular circumferential wall, a first ventilation plate and a second ventilation plate as end walls to form a main body, and is driven to rotate by a driving member. Among them, several shaft rods are rotatably arranged on the surface of the second ventilation plate, and the shaft rods are used to connect drying racks for placing hanks. The surface of the circumferential wall is evenly provided with a collection assembly, and the collection assembly includes a collection groove. The opening of the collection groove is arranged at a position close to the end of the collection groove. A mesh is also slidably arranged in the collection groove through a sliding pair. The mesh is slidably opened and closed at the opening of the collection groove, and a water storage baffle for storing water when the opening faces downward is also arranged at the end of the mesh.

[0011] As a further optimization solution of the present invention, the first ventilation plate is a mesh plate, which is arranged on the circumferential wall in an opening and closing manner for placing and taking the drying rack and the hank yarn. By setting the first ventilation plate as a mesh plate, a drying air flow channel can be formed, and by setting the first ventilation plate as an opening and closing door plate, a handle can also be set to facilitate opening.

[0012] As a further optimization solution of the present invention, a air supply component is arranged on the outer side of the second ventilation plate. The air supply component includes a box body covering the second ventilation plate and a fan for supplying air into the box body. The air supply component is used to send drying air flow into the second ventilation plate. A heating device can also be arranged in the box body to heat the air flow. In order to save the energy for heating, the air flow discharged from the first ventilation plate can also be dried and collected for recycling to form a cycle.

[0013] As a further optimization solution of the present invention, the second ventilation plate is a round hole plate. A wind receiving component is arranged on the other side of the second ventilation plate through which the shaft rod passes. The wind receiving component includes a wind receiving frame arranged at the end of the shaft rod. A plurality of wind blocking balls pulled by connecting pieces are arranged on the outer surface of the wind receiving frame for blocking the round holes on the outer side of the wind receiving frame under the push of the air flow. Since the hank yarn always rotates along the shaft rod during the drying process of the dryer component and the distance between the hank yarns is relatively large, in order to prevent too much air flow from discharging through the gaps between the hank yarns, a wind receiving frame is arranged. Wind blocking balls are arranged on the outer side of the wind receiving frame, and the wind blocking balls can be pushed towards the second ventilation plate according to the air pressure difference to block some of the redundant holes, so that more air flow enters the wind receiving frame and blows directly onto the yarns.

[0014] As a further optimization solution of the present invention, a groove is formed around the outer side of the wind receiving frame, and a flexible belt is sleeved in the groove. The connecting pieces are tied to the surface of the flexible belt. Among them, the connecting pieces are concentrated on the surface of half a section of the flexible belt. Since the wind receiving frame always rotates with the dryer component and passes through different positions, in order to conveniently block different holes and reduce the entanglement of the connecting pieces with each other, by setting the flexible belt, there is no wind blocking ball in front of the advancing direction of the wind receiving frame. The wind blocking balls are pulled and rotated by the flexible belt to reach the rear of the advancing direction of the wind receiving frame. In order to further reduce the entanglement, the connecting pieces can also be set to be alternately long and short.

[0015] As a further optimization solution of the present invention, a blocking net is also arranged in the box body for blocking the wind receiving frame to prevent the wind blocking balls from entering the inner side of the wind receiving frame.

[0016] As a further optimized solution of the present invention, the concentration of the silver ion solution is 0.1 - 0.5 mol / L. The treatment method using the silver ion solution is as follows: wind the polyethylene yarn into a hank, then immerse it in the silver ion solution for 10 - 20 minutes, and after the treatment is completed, the drying time is 30 - 60 minutes, and the drying temperature is 60 - 90 °C.

[0017] The present invention also provides an antistatic polyethylene yarn obtained by the above preparation method.

[0018] The beneficial effects of the present invention are as follows:

[0019] The present invention uses a ring-shaped rotating dryer assembly to dry the yarn, and a collection assembly is arranged on the circumference of the ring of the dryer assembly. When the collection assembly rotates to the lower part, the opening faces upward, and the solution drained from the yarn drips onto the lower hank until it drips to the bottom and enters the collection tank. When the collection tank rotates to the upper part, due to the water storage effect of the water storage baffle, the mesh slides to close the opening, and then the solution slowly drips onto the surface of the yarn through the mesh, and the water is continuously evaporated by repeated soaking, retaining most of the effective antistatic components. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3 is the top view of the present invention;

[0023] Figure 4 is the overall structural schematic diagram of the present invention;

[0024] Figure 5 is the cross-sectional structural schematic diagram of the present invention;

[0025] Figure 6 is the top view of the present invention;

[0026] In the figure: 1. Dryer assembly; 11. First ventilation plate; 12. Second ventilation plate; 13. Shaft rod; 14. Yarn; 15. Driving member; 2. Collection assembly; 21. Collection tank; 22. Opening; 23. Sliding pair; 24. Mesh; 25. Water storage baffle; 3. Wind-receiving assembly; 31. Wind-receiving frame; 32. Groove; 33. Flexible belt; 34. Connecting member; 35. Windshield ball; 4. Air supply assembly; 41. Box body; 42. Mesh; 43. Fan. Detailed Embodiments

[0027] The present application will be further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] Example 1

[0029] As Figure 1-6 shown, a method for preparing an anti-static polyethylene yarn includes the following steps:

[0030] S1: Melting, extruding, cooling and solidifying, and stretching and shaping the polyethylene resin raw material to form a polyethylene yarn raw material:

[0031] S2: Winding the polyethylene yarn raw material into a hank, and treating the hank with a silver ion solution;

[0032] S3: Using the dryer assembly 1 to dry a plurality of hanks after being treated with the silver ion solution. During the drying process, the dryer assembly 1 is used to repeatedly drip the silver ion solution drained from the hanks onto the hanks.

[0033] The dryer assembly 1 is composed of an annular circumferential wall, a first ventilation plate 11 and a second ventilation plate 12 as end walls to form a main body, and is driven to rotate by a driving member 15. Among them, a plurality of shaft rods 13 are rotatably arranged on the surface of the second ventilation plate 12. The shaft rods 13 are used to connect the drying racks to place the hanks 14. The collecting assembly 2 is uniformly arranged on the surface of the circumferential wall. The collecting assembly 2 includes a collecting groove 21. The opening 22 of the collecting groove 21 is arranged at a position close to the end of the collecting groove 21. A mesh 24 is also slidably arranged in the collecting groove 21 through a sliding pair 23. The mesh 24 is slidably opened and closed at the opening 22 of the collecting groove 21. A water storage baffle 25 for storing water when the opening 22 faces downward is also arranged at the end of the mesh 24.

[0034] In this solution, the dryer assembly 1 that rotates annularly is used to dry the hanks 14. Among them, the collecting assembly 2 is arranged on the annular circumference of the dryer assembly 1. When the collecting assembly 2 rotates to the lower part, the opening 22 faces upward, and the solution drained from the yarn 12 drips onto the yarn 12 below until it drips to the bottom and enters the collecting groove 21. When the collecting groove 21 rotates to the upper part, as Figure 6 shown, due to the water storage function of the water storage baffle 25, the mesh 24 slides to close the opening 22, and then the solution slowly drips onto the surface of the hanks 14 through the mesh 24. The water is continuously evaporated in a way of repeated infiltration, and most of the effective antistatic components are retained. During the rotation of the dryer assembly 1, the hanks 14 and the drying racks are always kept vertically downward through the rotation of the shaft rods 13, so that after the hanks 14 absorb the dripping solution, they can be gradually infiltrated downward along the hanks 14.

[0035] The first ventilation plate 11 is a mesh plate, which is arranged on the circumferential wall in an opening and closing manner for taking and placing the drying rack and the hank yarn 14. By setting the first ventilation plate 11 as a mesh plate, a drying air flow channel can be formed. And by setting the first ventilation plate 11 as an opening and closing door plate, a handle can also be set to facilitate opening.

[0036] A blowing component 4 is arranged on the outer side of the second ventilation plate 12. The blowing component 4 includes a box body 41 surrounding the second ventilation plate 12 and a blower 43 for blowing air into the box body 41. The blowing component 4 is used to send drying air flow into the second ventilation plate 12. A heating device can also be arranged in the box body 41 to heat the air flow. In order to save the energy for heating, the air flow discharged from the first ventilation plate 11 can also be dried and collected for recycling to form a cycle.

[0037] The second ventilation plate 12 is a round hole plate. A wind receiving component 3 is arranged on the other side of the second ventilation plate 12 through which the shaft rod 13 passes. The wind receiving component 3 includes a wind receiving frame 31 arranged at the end of the shaft rod 13. A plurality of wind blocking balls 35 pulled by connecting pieces 34 are arranged on the outer surface of the wind receiving frame 31 for blocking the round holes outside the wind receiving frame 31 by the push of the air flow. Since the hank yarn 14 always rotates along the shaft rod 13 during the drying process of the dryer assembly 1 and the distance between the hank yarns 14 is relatively large, in order to prevent too much air flow from being discharged through the gaps between the hank yarns 14, the wind receiving frame 31 is set in this solution. The wind blocking balls 35 are arranged on the outer side of the wind receiving frame 31, and the wind blocking balls 35 can be pushed towards the second ventilation plate 12 by the air flow pressure difference to block some of the redundant holes, so that more air flow enters the wind receiving frame 31 and directly blows onto the hank yarn 14.

[0038] A groove 32 is formed around the outer side of the wind receiving frame 31, and a flexible belt 33 is sleeved in the groove 32. The connecting piece 34 is tied to the surface of the flexible belt 33. Among them, the connecting pieces 34 are intensively arranged on the surface of half a section of the flexible belt 33. Since the wind receiving frame 31 always rotates with the dryer assembly 1 and the wind receiving frame 31 passes through different positions, in order to facilitate blocking different holes and reduce the entanglement between the connecting pieces 34, by setting the flexible belt 33, there is no wind blocking ball 35 in front of the advancing direction of the wind receiving frame 31. The wind blocking ball 35 is pulled and rotated by the flexible belt 33 to reach the rear of the advancing direction of the wind receiving frame 31. In order to further reduce the entanglement, the connecting pieces 34 can also be set with alternating lengths.

[0039] A retaining net 42 is also arranged in the box body 41 for blocking the wind receiving frame 31 to prevent the wind blocking balls 35 from entering the inner side of the wind receiving frame 31 and restricting the wind blocking balls 35 on the outer side of the wind receiving frame 31.

[0040] The concentration of the silver ion solution is 0.2 mol / L. The treatment method with the silver ion solution is as follows: The polyethylene yarn is wound into a hank and then immersed in the silver ion solution for 15 minutes of soaking. After the treatment is completed, the drying time is 45 minutes and the drying temperature is 75 °C.

[0041] The present invention also provides an antistatic polyethylene yarn obtained by using the above preparation method.

[0042] Example 2

[0043] Different from Example 1, the concentration of the silver ion solution is 0.1 mol / L. The treatment method with the silver ion solution is as follows: The polyethylene yarn is wound into a hank 4 and then immersed in the silver ion solution for 10 minutes of soaking. After the treatment is completed, the drying time is 30 minutes and the drying temperature is 60 °C.

[0044] Example 3

[0045] Different from Example 1, the concentration of the silver ion solution is 0.5 mol / L. The treatment method with the silver ion solution is as follows: The polyethylene yarn is wound into a hank 4 and then immersed in the silver ion solution for 20 minutes of soaking. After the treatment is completed, the drying time is 60 minutes and the drying temperature is 90 °C.

[0046] Comparative Example 1

[0047] Different from Example 1, in this comparative example, the wind-receiving component 3 is removed.

[0048] Comparative Example 2

[0049] Different from Example 1, in this comparative example, during the drying process, the dryer component 1 does not rotate.

[0050] Samples are selected from the hanks 14 obtained by the preparation schemes of Examples 1-3 and Comparative Examples 1-2. For all the hanks 14 dried by the same dryer component 1, samples are taken from each roll to form a sample group. Fabrics of the same specification are woven from each sample group, and the antistatic ability of the sample groups is detected. The average value is taken for each sample group. Among them, according to GB / T 12703.1-2021 "Textiles - Test methods for electrostatic properties - Part 1: Corona charging method", the antistatic performance of each down sample is detected, and the static voltage half-life is used as the test index. The experimental data are as follows (half-life unit: s):

[0051] Sample Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Half-life 4.54 5.01 4.64 12.3 20.14

[0052] It can be seen from the data that in Comparative Example 1, the wind-receiving component 3 is not adopted, resulting in the dispersion of the air flow. Since the hank yarn 14 needs to rotate along the shaft rod 13, a rotation gap needs to be left between them, and this gap causes the dispersion of the air flow, resulting in low drying efficiency. With the same drying time, the effective antistatic components remaining in the hank yarn 14 are less. In Comparative Document 2, the drying component 1 does not rotate and does not repeatedly drip and infiltrate through the collection component 2, so a large amount of silver ion solution on the surface of the hank yarn 14 leaks out, resulting in a greatly reduced antistatic ability after drying.

[0053] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A method for preparing an antistatic polyethylene yarn, characterized in that: It includes the following steps: S1: Melting and extruding the polyethylene resin raw material, cooling and solidifying it, and stretching and shaping it to form the polyethylene yarn raw material: S2: Winding the polyethylene yarn raw material into a hank, and treating the hank with a silver ion solution; S3: Using the dryer assembly (1) to dry multiple hanks after being treated with the silver ion solution. During the drying process, the dryer assembly (1) is used to repeatedly drip the silver ion solution drained from the hanks onto the hanks.

2. The preparation method of an antistatic polyethylene yarn according to claim 1, characterized in that: The dryer assembly (1) is composed of an annular circumferential wall, a first ventilation plate (11) and a second ventilation plate (12) as end walls to form a main body, and is driven to rotate by a driving member (15). Among them, several shaft rods (13) are rotatably arranged on the surface of the second ventilation plate (12), and the shaft rods (13) are used to connect the drying racks for placing the hanks (14). The surface of the circumferential wall is evenly provided with a collection assembly (2). The collection assembly (2) includes a collection groove (21). The opening (22) of the collection groove (21) is arranged at a position close to the end of the collection groove (21). A mesh sheet (24) is also slidably arranged in the collection groove (21) through a sliding pair (23). The mesh sheet (24) is slidably opened and closed at the opening (22) of the collection groove (21). A storage baffle (25) for storing water when the opening (22) faces down is also arranged at the end of the mesh sheet (24).

3. The preparation method of an antistatic polyethylene yarn according to claim 2, wherein: The first ventilation plate (11) is a mesh plate, and it is opened and closed on the circumferential wall for taking and placing the drying racks and the hanks (14).

4. The preparation method of an antistatic polyethylene yarn according to claim 2, characterized in that: A air supply assembly (4) is arranged outside the second ventilation plate (12). The air supply assembly (4) includes a box body (41) covering the second ventilation plate (12) and a fan (43) for supplying air into the box body (41).

5. The preparation method of an antistatic polyethylene yarn according to claim 4, characterized in that: The second ventilation plate (12) is a round hole plate. The shaft rod (13) penetrates through the other side of the second ventilation plate (12) and is provided with a wind receiving assembly (3). The wind receiving assembly (3) includes a wind receiving frame (31) arranged at the end of the shaft rod (13). Several wind blocking balls (35) pulled by connecting pieces (34) are arranged on the outer surface of the wind receiving frame (31) for blocking the round holes outside the wind receiving frame (31) by the push of the air flow.

6. The preparation method of an antistatic polyethylene yarn according to claim 5, characterized in that: A groove (32) is circumferentially formed on the outer side of the wind receiving frame (31), and a flexible belt (33) is sleeved in the groove (32). The connecting piece (34) is tied to the surface of the flexible belt (33).

7. The preparation method of an anti-static polyethylene yarn according to claim 6, characterized in that: A blocking net (42) is also arranged in the box body (41) for blocking the wind receiving frame (31) to prevent the wind blocking balls (35) from entering the inner side of the wind receiving frame (31).

8. The preparation method of an anti-static polyethylene yarn according to claim 1, characterized in that: The concentration of the silver ion solution is 0.1 - 0.5 mol / L. The treatment method using the silver ion solution is: After winding the polyethylene yarn into a hank, immersing it in the silver ion solution for infiltration for 10 - 20 min. After the treatment is completed, the drying time is 30 - 60 min, and the drying temperature is 60 - 90 °C.

9. An anti-static polyethylene yarn, characterized in that: Obtained by using the preparation method as described in any one of claims 1 - 8.

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