Blended yarn containing metal short fibers and preparation method thereof

Abstract

The invention discloses a blended yarn containing metal short fibers and a preparation method thereof.The blended yarn containing the metal short fibers comprises the following components: the metal short fibers, functional short fibers and matrix short fibers, the metal short fibers are made of at least one of steel wires, tungsten wires and silver-plated alloy wires, the components of the metal short fibers are 5-18%, the functional short fibers are made of metal fibers, and the matrix short fibers are made of metal fibers. The component of the functional short fiber is 20-35%, the functional short fiber is at least one of ultra-high molecular weight polyethylene, aramid fiber, glass fiber and basalt fiber, the component of the matrix short fiber is 47-72%, and the matrix short fiber is at least one of chinlon, polyester, polypropylene fiber, viscose, cotton fiber and fibrilia. The blended yarn material which is low in cost, high in stability and capable of meeting the cutting-resistant and conductive requirements at the same time is developed, the blended yarn material can be suitable for industrial protective gloves, anti-static work clothes, electromagnetic shielding fabric and other scenes at the same time, the application range of the blended yarn material is widened, and the blended yarn material has the high competitive advantage.

Description

Technical Field

[0001] The present invention relates to the technical field of yarns, and further to a blended yarn containing metal staple fibers and a preparation method thereof. Background Art

[0002] In the fields of safety protection, electronic shielding, and functional textiles, fiber materials that are both cut-resistant and conductive are key basic raw materials and are widely used in industrial protective gloves, anti-static clothing, electromagnetic shielding fabrics, and other scenarios. With the improvement of industrial safety standards and the popularization of electronic equipment, the market demand for textile materials that meet both cut-resistant and conductive requirements has surged. Most existing solutions use single-function, single-fiber spinning. Cut-resistant fibers such as metal wire, ultra-high molecular weight PE fiber, and aramid fiber are commonly used in safety protection products, while conductive fibers mainly include metal wire, conductive carbon black conductive yarn, and coated conductive yarn. These fibers have better conductivity. However, blended yarns that are both cut-resistant and conductive are usually more expensive, making the cost of use relatively high for companies, and there is a problem of limiting the company's development space.

[0003] Therefore, it is urgent to develop a blended yarn containing metal staple fibers to solve the technical problems in the prior art. Summary of the Invention

[0004] In view of the above technical problems, the object of the present invention is to provide a blended yarn containing metal staple fibers, which can solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present application provides a blended yarn containing metal staple fibers, comprising the following components:

[0007] Metal short fibers, wherein the material of the metal short fibers is at least one of steel wire, tungsten wire, and silver-plated alloy wire, and the composition of the metal short fibers is 5-18%;

[0008] Functional short fibers, wherein the component of the functional short fibers is 20-35%, and the functional short fibers are at least one of ultra-high molecular weight polyethylene, aramid, glass fiber, and basalt fiber;

[0009] The matrix short fibers have a component of 47-75%, and the matrix short fibers are at least one of nylon, polyester, polypropylene, viscose, cotton fiber, and linen fiber.

[0010] In some embodiments, the diameter of the metal short fibers is 10-20 μm.

[0011] In some embodiments, the length of the functional staple fibers is 50-80 mm;

[0012] The length of the matrix short fibers is 38-50 mm.

[0013] According to another aspect of the present invention, the present invention further provides a method for preparing a blended yarn containing metal short fibers, which is used to prepare the blended yarn containing metal short fibers described in the above embodiment, and is characterized in that it comprises the following steps:

[0014] S1: Weighing metal short fibers, functional short fibers and matrix short fibers according to a preset ratio to form a mixed fiber pile;

[0015] S2: Grabbing, opening and preliminarily mixing the prefabricated fiber pile in sequence by a plucking machine, a cotton opener and a cotton blending machine to form a secondary fiber pile;

[0016] S3: carding the secondary fiber pile using a carding machine to form a fiber web;

[0017] S4: performing 2-4 drawing processes on the fiber web;

[0018] S5: Spinning is performed through a ring spinning process to form a yarn material.

[0019] In some embodiments, the beater speed of the cotton opener is 350-550 r / min, the working temperature of the cotton opener is 15-30° C., and the stirring and mixing time of the cotton mixer is 15-25 min.

[0020] In some embodiments, between step S1 and step S2, the following steps are further included:

[0021] Step S1.1: drying the prefabricated fiber pile to remove moisture.

[0022] In some embodiments, the speed of the carding machine is 10-30 m / min, and the flat plate spacing of the carding machine is 0.15-0.25 mm.

[0023] In some embodiments, the controlled spinning tension and rotation speed of the ring spinning process are 15-30 cN and 8000-15000 rpm, respectively.

[0024] In some embodiments, S6: the yarn material is subjected to a winding process and a steam setting process on a winding machine to be wound into a bobbin.

[0025] In some embodiments, the drawing process includes spraying an antistatic agent.

[0026] Compared with the prior art, the blended yarn containing metal staple fibers provided by the present invention has at least the following beneficial effects:

[0027] 1. By optimizing the ratio and process parameters of metallic staple fibers, functional staple fibers, and traditional textile fibers, the present invention has developed a low-cost, highly stable blended yarn material that simultaneously meets the requirements of cut resistance and conductivity. This blended yarn material is suitable for use in industrial protective gloves, anti-static work clothes, electromagnetic shielding fabrics, and other applications, thereby expanding the application range of the blended yarn material and providing a strong competitive advantage.

[0028] 2. The present invention reduces the mechanical damage of the metal fiber during the combing process by appropriately lowering the rotation speed and operating temperature of the cotton opener, thereby protecting the flexibility of the metal fiber. At the same time, it takes advantage of the low brittleness and better fracture resistance of the metal fiber at low temperatures to effectively reduce the risk of metal fiber breakage. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will be compared with the specific embodiments of the present invention. Obviously, the following description is only some embodiments of the present invention, and it is obvious that those skilled in the art can also derive other embodiments based on these without inventive efforts.

[0030] The contents of the main raw materials and their components used in the examples and comparative examples are as follows:

[0031] The metal fiber is silver-plated nylon metal staple fiber sold by Zhangjiagang Yudun Special Fiber Co., Ltd., the functional staple fiber is CBF chopped yarn basalt fiber staple provided by Zhejiang Debang High-tech Fiber Co., Ltd. or ZTD series ultra-high molecular weight polyethylene staple fiber provided by Hunan Zhongtai Special Equipment Co., Ltd., and the matrix staple fiber is Zhejiang Hengyi Fiber provided by Zhejiang Hengyi Fiber Petrochemical Co., Ltd. or nylon fiber provided by Yiwu Huading.

[0032] The present application is further described in detail below with reference to the following examples and comparative examples.

[0033] Examples 1-4 and Comparative Examples 1-2 provide blended yarns containing metallic staple fibers.

[0034] Example 1

[0035] Example 1 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0036] First, 7% of silver-plated nylon metal staple fibers with a diameter of 15 μm, 25% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 68% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 400 r / min, the working temperature of the cotton opener was set to 20 ° C, and the stirring and mixing time of the cotton mixer was set to 16 minutes. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is combed to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 11m / min and 0.17mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 20cN and 9000rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0037] Example 2

[0038] Example 2 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0039] First, 9% of silver-plated nylon metal staple fibers with a diameter of 16 μm, 23% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 61% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 410 r / min, the working temperature of the cotton opener was set to 18 ° C, and the stirring and mixing time of the cotton mixer was set to 17 min. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is carded to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 15m / min and 0.16mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 22cN and 9500rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0040] Example 3

[0041] Example 3 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0042] First, 12% of silver-plated nylon metal staple fibers with a diameter of 15 μm, 25% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 67% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 400 r / min, the working temperature of the cotton opener was set to 25 ° C, and the stirring and mixing time of the cotton mixer was set to 16 min. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the mixed fiber pile was combed by a carding machine. The secondary spinning fiber pile is carded to form a fiber web, wherein the carding machine speed and the carding machine cover plate spacing are 11m / min and 0.17mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 20cN and 9000rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0043] Example 4

[0044] Example 4 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0045] First, 15% of silver-plated nylon metal staple fibers with a diameter of 25 μm, 28% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 55 mm, and 57% of nylon fibers with a length of 50 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 500 r / min, the working temperature of the cotton opener was set to 23 ° C, and the stirring and mixing time of the cotton mixer was set to 21 min. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is combed to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 23m / min and 0.12mm respectively. The blended yarn fiber web is then subjected to two drawing processes and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 25cN and 10000rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0046] Comparative Example 1

[0047] Comparative Example 1 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0048] First, 3% of silver-plated nylon metal staple fibers with a diameter of 15 μm, 10% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 87% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 400 r / min, the working temperature of the cotton opener was set to 20 ° C, and the stirring and mixing time of the cotton mixer was set to 16 minutes. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is combed to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 11m / min and 0.17mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 20cN and 9000rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0049] Comparative Example 2

[0050] Comparative Example 2 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0051] First, 22% of silver-plated nylon metal staple fibers with a diameter of 15 μm, 60% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 25% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 400 r / min, the working temperature of the cotton opener was set to 20 ° C, and the stirring and mixing time of the cotton mixer was set to 16 minutes. The prefabricated fiber pile of the blended yarn was grabbed, opened and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is carded to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 15m / min and 0.16mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 22cN and 9500rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0052] Comparative Example 3

[0053] Comparative Example 3 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0054] First, 9% of silver-plated nylon metal staple fibers with a diameter of 16 μm, 23% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 61% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 700 r / min, the working temperature of the cotton opener was set to 40 ° C, and the stirring and mixing time of the cotton mixer was set to 30 min. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is carded to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 26 m / min and 0.20 mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 22 cN and 10,000 rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0055] Comparative Example 4

[0056] Comparative Example 4 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0057] First, 12% of silver-plated nylon metal staple fibers with a diameter of 15 μm, 25% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 67% of nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 400 r / min, the working temperature of the cotton opener was set to 25 ° C, and the stirring and mixing time of the cotton mixer was set to 16 min. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the mixed fiber pile was combed by a carding machine. The secondary spinning fiber pile is carded to form a fiber web, wherein the carding machine speed and the carding machine cover plate spacing are 55m / min and 0.30mm respectively. The blended yarn fiber web is then subjected to three-pass drawing treatment and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 20cN and 9000rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0058] Comparative Example 5

[0059] Comparative Example 5 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0060] First, 15% of silver-plated nylon metal staple fibers with a diameter of 25 μm, 28% of ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 55 mm, and 57% of nylon fibers with a length of 50 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 500 r / min, the working temperature of the cotton opener was set to 23 ° C, and the stirring and mixing time of the cotton mixer was set to 21 min. The prefabricated fiber pile of the blended yarn was grabbed, opened, and preliminarily mixed in turn to form a secondary fiber pile. Subsequently, the blended yarn was combed by a carding machine. The secondary fiber pile of the yarn is combed to form a fiber web, wherein the speed of the carding machine and the cover plate spacing of the carding machine are 23m / min and 0.11mm respectively. The blended yarn fiber web is then subjected to two drawing processes and sprayed with an antistatic agent. It is then spun through a ring spinning process to form a yarn material, wherein the controlled spinning tension and speed of the ring spinning process are 40cN and 20000rpm respectively. Finally, the obtained yarn material is passed through a winder for winding and steam setting treatment to be wound into a cone yarn.

[0061] Comparative Example 6

[0062] Comparative Example 6 provides a blended yarn containing metal staple fibers and a preparation method thereof. The preparation method of the blended yarn containing metal staple fibers comprises the following steps:

[0063] First, 7% silver-plated nylon metal staple fibers with a diameter of 15 μm, 25% ZTD series ultra-high molecular weight polyethylene staple fibers with a length of 60 mm, and 68% nylon fibers with a length of 40 mm were taken to form a mixed fiber pile. Then, the beater speed of the cotton opener was set to 400 r / min, the working temperature of the cotton opener was set to 20°C, and the stirring and mixing time of the cotton mixer was set to 16 min. The prefabricated fiber pile of the blended yarn was sequentially grabbed, opened, and preliminarily mixed to form a secondary fiber pile. Subsequently, the secondary fiber pile of the blended yarn was combed by a cotton carding machine to form a fiber web. The speed of the cotton carding machine and the cover plate spacing of the cotton carding machine were 11 m / min and 0.17 mm, respectively. The blended yarn fiber web was then subjected to three drawing processes and then to a spinning process to form a yarn material. The spinning tension and speed of the ring spinning process were controlled to be 20 cN and 9000 rpm, respectively. Finally, the obtained yarn material was subjected to a winding process and steam setting process on a winding machine to be wound into a cone yarn.

[0064] Performance testing

[0065] The blended yarns prepared in Examples 1-4 and Comparative Examples 1-5 were tested for cut resistance, conductivity, and antistatic properties, respectively. The cut resistance was tested in accordance with BGS EN 388-1994 "Test method for cut resistance of materials for protective clothing", the conductivity was tested in accordance with GB / T 12703.4-2010 "Evaluation of electrostatic properties of textiles - Part 4: Resistivity", and the antistatic performance was tested in accordance with GB / T 4802.2-2008 "Determination of pilling properties of textile fabrics - Part 2: Modified Martindale method". The results are shown in Table 1.

[0066] Table 1

[0067]

[0068]

[0069] It can be seen from Table 1 that compared with Comparative Example 1, the blended yarns prepared in Examples 1-4 have better cut resistance, compared with Comparative Example 2, the blended yarns prepared in Examples 1-4 have better electrical conductivity, compared with Comparative Example 3, the blended yarn prepared in Example 2 has better electrical conductivity, compared with Comparative Example 4, the blended yarn prepared in Example 3 has better electrical conductivity, compared with Comparative Example 5, the blended yarn prepared in Example 4 has better electrical conductivity, compared with Comparative Example 6, the blended yarn prepared in Example 1 has better antistatic performance. It can be seen that reasonable raw material parameters and reasonable device operation parameters can bring better comprehensive performance to the blended yarn.

[0070] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A blended yarn containing metal staple fibers, characterized in that: Includes the following components: Metal short fibers, wherein the material of the metal short fibers is at least one of steel wire, tungsten wire, and silver-plated alloy wire, and the composition of the metal short fibers is 5-18%; Functional short fibers, wherein the component of the functional short fibers is 20-35%, and the functional short fibers are at least one of ultra-high molecular weight polyethylene, aramid, glass fiber, and basalt fiber; The matrix short fibers have a component of 47-72%, and the matrix short fibers are at least one of nylon, polyester, polypropylene, viscose, cotton fiber, and linen fiber.

2. The blended yarn containing metal short fibers according to claim 1, characterized in that: The diameter of the metal short fibers is 10-20 μm.

3. The blended yarn containing metal short fibers according to claim 2, characterized in that: The length of the functional short fibers is 50-80 mm; The length of the matrix short fibers is 38-50 mm.

4. A method for preparing a blended yarn containing metal short fibers, for preparing the blended yarn containing metal short fibers as claimed in claims 1 to 3, characterized in that: The following steps are involved: S1: Weighing metal short fibers, functional short fibers and matrix short fibers according to a preset ratio to form a mixed fiber pile; S2: Grabbing, opening and preliminarily mixing the prefabricated fiber pile in sequence by a plucking machine, a cotton opener and a cotton blending machine to form a secondary fiber pile; S3: carding the secondary fiber pile using a carding machine to form a fiber web; S4: performing 2-4 drawing processes on the fiber web; S5: Spinning is performed through a ring spinning process to form a yarn material.

5. The method for preparing a blended yarn containing metal short fibers according to claim 4, characterized in that: The beater speed of the cotton opener is 350-550 r / min, the working temperature of the cotton opener is 15-30° C., and the stirring and mixing time of the cotton mixer is 15-25 min.

6. The method for preparing a blended yarn containing metallic short fibers according to claim 5, characterized in that: The steps between step S1 and step S2 also include: Step S1.1: drying the prefabricated fiber pile to remove moisture.

7. The method for preparing a blended yarn containing metallic short fibers according to claim 6, wherein: The speed of the carding machine is 10-30 m / min, and the cover plate spacing of the carding machine is 0.15-0.25 mm.

8. The method for preparing a blended yarn containing metal short fibers according to claim 7, wherein: The controlled spinning tension and rotation speed of the ring spinning process are 15-30 cN and 8000-15000 rpm respectively.

9. The method for preparing a blended yarn containing metal staple fibers according to any one of claims 4 to 8, characterized in that: Also includes: S6: The yarn material is subjected to a winding process and a steam setting process on a winding machine to be wound into a bobbin.

10. The method for preparing a blended yarn containing metal short fibers according to claim 9, characterized in that: The drawing process includes spraying an antistatic agent.

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