Manufacturing method of wool and ultra-high molecular weight polyethylene fiber composite fabric

Abstract

The invention discloses a wool and ultra-high molecular weight polyethylene fiber composite fabric manufacturing method, which belongs to the technical field of fabric spinning, and comprises the following steps: in a raw material pretreatment stage, carrying out plasma surface treatment on ultra-high molecular weight polyethylene fibers, carrying out impurity removal on wool fibers, and carrying out low-temperature plasma and neutral protease modification; meanwhile, performing melt grafting on the ultra-high molecular weight polyethylene fibers, maleic anhydride and nano silicon dioxide to prepare a weft yarn raw material; performing composite spinning by adopting a siro spinning process to obtain warp yarns and weft yarns; weaving grey cloth by an air-jet loom; and finally, carrying out after-finishing procedures such as antibiosis, crease resistance and shaping. According to the invention, the interface bonding force of the two fibers is effectively improved, and the prepared composite fabric has the warm-keeping and skin-friendly properties of wool and the high-strength and wear-resistant properties of the ultra-high molecular weight polyethylene fibers, and can be widely applied to the fields of outdoor clothes, protective articles and high-end home textiles.

Description

Technical Field

[0001] This invention relates to the field of fabric spinning technology, and in particular to a method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber. Background Technology

[0002] In the textile industry, wool fiber has long held an important position in clothing and home textiles due to its excellent warmth retention, soft touch, and natural texture. However, it also suffers from problems such as low strength, easy wrinkling, and poor antibacterial properties, making it difficult to meet the higher requirements for material mechanical properties and multifunctionality in outdoor clothing and protective equipment. Ultra-high molecular weight polyethylene fiber, as a high-performance fiber, possesses extremely high tensile strength, excellent abrasion resistance, and chemical corrosion resistance, showing great potential in the preparation of high-performance fabrics. However, its surface inertness and poor interfacial compatibility with wool fiber make direct lamination prone to weak fiber bonding and fabric delamination, severely affecting the overall performance of the composite fabric.

[0003] Current composite processes for wool and ultra-high molecular weight polyethylene (UHMWPE) fibers often have several shortcomings. On the one hand, the surface modification treatments for both fibers are insufficient, failing to effectively improve their interfacial bonding, resulting in composite fabrics with unsatisfactory mechanical properties. On the other hand, unreasonable design of process parameters such as spinning, weaving, and finishing makes it difficult to balance strength, wrinkle resistance, and antibacterial properties, leading to poor product performance stability and inability to meet diverse needs in practical applications. Therefore, developing a method that can effectively improve the interfacial compatibility of the two fibers, optimize process parameters, and enhance the overall performance of composite fabrics has become an important research direction in the textile field. Summary of the Invention

[0004] The purpose of this invention is to provide a method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber to solve the above-mentioned problems.

[0005] This invention provides a method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0006] S1. Raw material pretreatment: Select wool fiber and ultra-high molecular weight polyethylene fiber as warp raw materials, with wool fiber accounting for 50-70 wt% and ultra-high molecular weight polyethylene fiber accounting for 30-50 wt%. Perform plasma surface treatment on ultra-high molecular weight polyethylene fiber with a treatment power of 300-600W and a treatment time of 5-20 min to improve its interfacial bonding with wool fiber. Remove impurities and comb the wool fiber, and then treat it with low-temperature plasma treatment. Then treat it with a neutral protease solution with a concentration of 0.2-0.5 wt% at 45-55℃ for 15-25 min. After treatment, wash it with water until neutral and dry it at 80-90℃ to obtain surface-modified wool fiber.

[0007] To prepare the weft yarn raw material, ultra-high molecular weight polyethylene fiber, maleic anhydride, and nano silica were mixed in a mass ratio of 100:5-10:2-5 and subjected to a melt grafting reaction at 160-180℃ for 1-2 hours. After the reaction, the mixture was washed with water and dried at 60-80℃ to obtain maleic anhydride-nano silica composite modified polyethylene fiber.

[0008] S2. Composite spinning: Pretreated wool fibers and ultra-high molecular weight polyethylene fibers are composite spun using Siro spinning process. The spinning speed is set to 80-120m / min, the twist is 800-1200 twists / meter, and the roller spacing is 20-40mm to obtain composite yarn with a linear density of 18-30tex. Maleic anhydride-nano silica composite modified polyethylene fibers are spun to obtain yarn.

[0009] S3. Weaving: Using the composite yarn obtained in step S2 as the warp yarn and the maleic anhydride-nano silica composite modified polyethylene yarn as the weft yarn, the fabric is woven using an air-jet loom; the weaving process parameters are set as follows: shedding time 280-320°, weft insertion force 150-220N, and weaving speed 300-450 rpm to obtain the grey fabric.

[0010] S4. Finishing: The fabric is subjected to antibacterial finishing, anti-wrinkle finishing, and setting treatment in sequence; the antibacterial finishing is to impregnate the fabric with a nano-silver antibacterial agent solution with a concentration of 0.5-1.5wt%, the impregnation temperature is 40-60℃, and the impregnation time is 20-40min; the anti-wrinkle finishing is to impregnate the fabric with an epoxy resin anti-wrinkle agent solution with a concentration of 2-5wt%, the roll-up rate is 70-80%, and then bake at 120-150℃ for 10-25min; the setting treatment temperature is 110-130℃, and the setting time is 5-15min.

[0011] The composite fabric obtained through the above steps has a warp breaking strength ≥500N, a weft breaking strength ≥450N, an antibacterial rate ≥99%, and a wrinkle recovery angle ≥280°.

[0012] Preferably, in the above-mentioned method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, the specific parameters of the plasma surface treatment of ultra-high molecular weight polyethylene fiber in step S1 are as follows: treatment power 400-500W, treatment time 8-15min, treatment atmosphere is argon, argon flow rate 10-20L / min; the low-temperature plasma treatment power of wool fiber is 150-250W, time is 3-8min, and atmosphere is oxygen.

[0013] Preferably, in the above-mentioned method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, the Sirospun process in step S2 further includes: mixing and opening the wool fiber and ultra-high molecular weight polyethylene fiber before spinning, with a mixing and opening speed of 15-25 m / min and an opening roller spacing of 5-10 mm.

[0014] Preferably, in the above-mentioned method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric, the grafting rate of the maleic anhydride-nano silica composite modified polyethylene fiber yarn in step S3 is 3-8%, and the linear density is 20-35 tex.

[0015] Preferably, in the above-mentioned method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, the antibacterial finishing in step S4 further includes a washing step: washing the fabric with deionized water at 30-40℃ for 10-20 minutes, washing 2-3 times, and then drying at 80-100℃ until the moisture content is ≤5%.

[0016] Preferably, in the above-mentioned method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric, the finishing process in step S4 further includes softening finishing: after anti-wrinkle finishing, the fabric is impregnated with a silicone softener solution with a concentration of 1-3 wt%, with a roll-off rate of 65-75%, and then dried at 90-110°C for 15-25 min.

[0017] Preferably, in the above-mentioned method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, the wool fibers are combed in step S1 using a double cylinder double doffer carding machine, with the cylinder speed of the carding machine being 300-400 r / min and the doffer speed being 20-30 r / min.

[0018] Preferably, in the above-mentioned method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, the draw ratio of the Sirospun process in step S2 is 5-8 times, wherein the front roller speed is 100-130m / min, the middle roller speed is 20-30m / min, and the rear roller speed is 5-10m / min.

[0019] Preferably, in the above-mentioned method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, the warp density of the weaving process in step S3 is 200-300 threads / 10cm, the weft density is 180-250 threads / 10cm, and the reed number is 40-60.

[0020] Preferably, in the above-mentioned method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric, the setting process in step S4 is performed using a hot air setting machine with a setting tension of 50-80N. After setting, cold air is used for cooling at a temperature of 20-30℃ for 3-8 minutes.

[0021] Therefore, this invention employs the aforementioned method for manufacturing a wool and ultra-high molecular weight polyethylene (UHMWPE) fiber composite fabric. The UHMWPE fiber undergoes plasma surface treatment to enhance its surface activity and affinity with wool fiber. The wool fiber is then subjected to impurity removal, combing, low-temperature plasma treatment, and protease treatment, which not only removes impurities and optimizes the fiber structure but also improves its surface activity, laying a solid foundation for subsequent composite processing. Furthermore, the weft yarn raw material is modified using a compound of UHMWPE fiber, maleic anhydride, and nano-silica, further enhancing the bonding force between fibers and overall performance.

[0022] In the composite spinning stage, Sirospinning technology is employed and relevant parameters are optimized to ensure that the pretreated fibers are uniformly mixed and form a structurally stable composite yarn. This effectively improves the yarn's strength and consistency, guaranteeing the fabric's mechanical properties. During the weaving process, a specific combination of warp and weft yarns, combined with optimized process parameters of the air-jet loom, results in a dense and uniform fabric structure. This avoids defects that are prone to occur in traditional weaving, creating favorable conditions for subsequent finishing processes.

[0023] In the finishing process, the synergistic effect of antibacterial finishing, wrinkle-resistant finishing, and setting treatment gives the composite fabric excellent antibacterial and wrinkle-resistant properties, as well as good dimensional stability. Antibacterial finishing provides the fabric with a lasting antibacterial effect, wrinkle-resistant finishing improves the wrinkle-prone nature of wool fibers, and setting treatment ensures the fabric's shape stability during use. Furthermore, optional softening finishing further enhances the fabric's tactile comfort, resulting in a composite fabric that maintains high strength while possessing good functionality and wearability, meeting the needs of various applications.

[0024] The technical solution of the present invention will be further described in detail below through embodiments. Detailed Implementation

[0025] To better understand the above technical solutions, a detailed description of the specific implementation methods will be provided below. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0027] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0028] This invention provides a method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0029] S1. Raw material pretreatment: Select wool fiber and ultra-high molecular weight polyethylene fiber as warp raw materials, with wool fiber accounting for 50-70 wt% and ultra-high molecular weight polyethylene fiber accounting for 30-50 wt%. Perform plasma surface treatment on ultra-high molecular weight polyethylene fiber with a treatment power of 300-600W and a treatment time of 5-20 min to improve its interfacial bonding with wool fiber. Remove impurities and comb the wool fiber, and then treat it with low-temperature plasma treatment. Then treat it with a neutral protease solution with a concentration of 0.2-0.5 wt% at 45-55℃ for 15-25 min. After treatment, wash it with water until neutral and dry it at 80-90℃ to obtain surface-modified wool fiber.

[0030] To prepare the weft yarn raw material, ultra-high molecular weight polyethylene fiber, maleic anhydride, and nano silica were mixed in a mass ratio of 100:5-10:2-5 and subjected to a melt grafting reaction at 160-180℃ for 1-2 hours. After the reaction, the mixture was washed with water and dried at 60-80℃ to obtain maleic anhydride-nano silica composite modified polyethylene fiber.

[0031] S2. Composite spinning: Pretreated wool fibers and ultra-high molecular weight polyethylene fibers are composite spun using Siro spinning process. The spinning speed is set to 80-120m / min, the twist is 800-1200 twists / meter, and the roller spacing is 20-40mm to obtain composite yarn with a linear density of 18-30tex. Maleic anhydride-nano silica composite modified polyethylene fibers are spun to obtain yarn.

[0032] S3. Weaving: Using the composite yarn obtained in step S2 as the warp yarn and the maleic anhydride-nano silica composite modified polyethylene yarn as the weft yarn, the fabric is woven using an air-jet loom; the weaving process parameters are set as follows: shedding time 280-320°, weft insertion force 150-220N, and weaving speed 300-450 rpm to obtain the grey fabric.

[0033] S4. Finishing: The fabric is subjected to antibacterial finishing, anti-wrinkle finishing, and setting treatment in sequence; the antibacterial finishing is to impregnate the fabric with a nano-silver antibacterial agent solution with a concentration of 0.5-1.5wt%, the impregnation temperature is 40-60℃, and the impregnation time is 20-40min; the anti-wrinkle finishing is to impregnate the fabric with an epoxy resin anti-wrinkle agent solution with a concentration of 2-5wt%, the roll-up rate is 70-80%, and then bake at 120-150℃ for 10-25min; the setting treatment temperature is 110-130℃, and the setting time is 5-15min.

[0034] The composite fabric obtained through the above steps has a warp breaking strength ≥500N, a weft breaking strength ≥450N, an antibacterial rate ≥99%, and a wrinkle recovery angle ≥280°.

[0035] To further optimize the above technical solution, the specific parameters for the plasma surface treatment of ultra-high molecular weight polyethylene fibers in step S1 are as follows: treatment power 400-500W, treatment time 8-15min, treatment atmosphere is argon, argon flow rate 10-20L / min; the low-temperature plasma treatment power for wool fibers is 150-250W, time 3-8min, and atmosphere is oxygen.

[0036] To further optimize the above technical solution, the Sirospinning process in step S2 also includes: mixing and opening wool fibers and ultra-high molecular weight polyethylene fibers before spinning, with a mixing and opening speed of 15-25 m / min and an opening roller spacing of 5-10 mm.

[0037] To further optimize the above technical solution, the grafting rate of the maleic anhydride-nano silica composite modified polyethylene fiber yarn in step S3 is 3-8%, and the linear density is 20-35 tex.

[0038] To further optimize the above technical solution, the antibacterial finishing in step S4 also includes a washing step: the fabric is washed with deionized water at 30-40℃ for 10-20 minutes, and the washing is repeated 2-3 times. Then it is dried at 80-100℃ until the moisture content is ≤5%.

[0039] To further optimize the above technical solution, the finishing process in step S4 also includes softening finishing: after anti-wrinkle finishing, the fabric is impregnated with a silicone softener solution with a concentration of 1-3wt%, with a roll-off rate of 65-75%, and then dried at 90-110℃ for 15-25 minutes.

[0040] To further optimize the above technical solution, in step S1, the wool fibers are combed using a double cylinder double doffer carding machine, with a cylinder speed of 300-400 r / min and a doffer speed of 20-30 r / min.

[0041] To further optimize the above technical solution, the draft ratio of the Siro spinning process in step S2 is 5-8 times, wherein the front roller speed is 100-130m / min, the middle roller speed is 20-30m / min, and the rear roller speed is 5-10m / min.

[0042] To further optimize the above technical solution, the warp density in the weaving process described in step S3 is 200-300 warp threads / 10cm, the weft density is 180-250 warp threads / 10cm, and the reed number is 40-60.

[0043] To further optimize the above technical solution, the shaping process in step S4 uses a hot air shaping machine with a shaping tension of 50-80N. After shaping, cold air is used for cooling at a temperature of 20-30℃ for 3-8 minutes.

[0044] The effective combination of wool fiber and ultra-high molecular weight polyethylene fiber in this application stems from a synergistic mechanism formed by multi-stage modification and process design. In the raw material pretreatment stage, plasma surface treatment of ultra-high molecular weight polyethylene fiber breaks its surface inert molecular chains through high-energy particle bombardment, introduces polar groups such as hydroxyl and carboxyl groups, and increases surface roughness, providing sites for physical adsorption and chemical interaction with wool fiber. After low-temperature plasma treatment and neutral protease treatment, the surface scale layer of wool fiber is moderately etched, exposing more active groups, and the surface tension of the fiber is reduced, thus narrowing the interfacial energy difference with ultra-high molecular weight polyethylene fiber, significantly improving the wettability and compatibility of the two fibers.

[0045] For the weft yarn raw material, maleic anhydride, as a grafting monomer, can react chemically with the active sites generated on the surface of ultra-high molecular weight polyethylene fiber through plasma treatment to form covalent bonds. Nano-silica is uniformly dispersed on the fiber surface through the bridging effect of maleic anhydride, which not only enhances the surface polarity of ultra-high molecular weight polyethylene fiber, but also improves the mechanical interlocking force between fibers through the filling effect of nanoparticles, thereby strengthening the interlacing bond strength between weft and warp yarns.

[0046] In the process of composite spinning and weaving, the high twist of the Sirospun process allows the two fibers to tightly bind together, forming a core-sheath or parallel structure, reducing fiber slippage; the precise weft insertion force and warp and weft density design of air-jet weaving further ensure that the interlacing points of the warp and weft yarns are firmly bonded, making the fabric structure dense and the stress even, avoiding breakage caused by local stress concentration.

[0047] Based on the aforementioned raw material combination mechanism and process design, the resulting composite fabric exhibits excellent mechanical properties. Wool fibers and ultra-high molecular weight polyethylene (UHMWPE) fibers form a synergistic force-bearing system through interface modification and tight interweaving. The high strength of UHMWPE fibers compensates for the insufficient strength of wool, while the elasticity of wool fibers alleviates the rigidity of UHMWPE fibers, giving the fabric both high tensile strength and a certain degree of flexibility, making it suitable for applications requiring high strength. In the finishing process, nano-silver antibacterial agents adhere to the fiber surface through intermolecular forces, forming a durable antibacterial layer; epoxy resin anti-wrinkle agents crosslink with the active groups of wool fibers, reducing fiber molecular chain slippage and improving wrinkling. Combined with the finishing process, these two components give the fabric antibacterial, wrinkle-resistant, and dimensionally stable properties.

[0048] Wool fibers retain their natural warmth and skin-friendliness, and after modification, the itching sensation is reduced. The abrasion resistance of ultra-high molecular weight polyethylene fibers enhances the fabric's durability, while a softening finish further optimizes the feel, solving the common problems of stiffness and roughness in high-performance fiber composite fabrics, achieving a balance between functionality and comfort. End-to-end control from fiber modification to weaving and finishing ensures the fabric is less prone to delamination, pilling, or deformation, maintaining good mechanical properties and functionality even after multiple washes. It has a wide range of applications, including outdoor clothing, protective gear, and high-end home textiles.

[0049] To provide a clearer and more detailed description of the method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to the embodiments of the present invention, the following description will be based on specific embodiments.

[0050] Example 1

[0051] A method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0052] S1. Raw material pretreatment: The warp yarn raw material contains 50wt% wool fiber and 50wt% ultra-high molecular weight polyethylene fiber; the ultra-high molecular weight polyethylene fiber is subjected to plasma surface treatment at a power of 300W for 5min; after cleaning and combing the wool fiber, it is subjected to 150W low-temperature plasma treatment for 3min, then treated with 0.2wt% neutral protease solution at 45℃ for 15min, washed with water and dried at 80℃.

[0053] The weft yarn raw materials are mixed in the ratio of ultra-high molecular weight polyethylene fiber: maleic anhydride: nano silica = 100:5:2, melt-grafted at 160℃ for 1 hour, washed with water and dried at 60℃.

[0054] S2. Composite spinning: Two fibers are mixed and opened at a speed of 15m / min (roller gap 5mm). The Sirospun process parameters are: spinning speed 80m / min, twist 800 twists / meter, roller gap 20mm, draft ratio 5 times, to produce 18tex warp yarn; the weft yarn has a linear density of 20tex after spinning.

[0055] S3. Weaving: The parameters of the air-jet loom are set as follows: shedding time 280°, weft force 150N, weaving speed 300 rpm, warp density 200 ends / 10cm, weft density 180 ends / 10cm, reed number 40, to produce the grey fabric.

[0056] S4. Finishing: Antibacterial finishing involves immersing in a 0.5wt% nano-silver solution at 40℃ for 20 minutes, washing with water, and drying at 80℃; Anti-wrinkle finishing involves padding with a 2wt% epoxy resin solution (70% roll-off rate), baking at 120℃ for 25 minutes; Setting treatment involves holding at 110℃ for 15 minutes with a tension of 50N, and cooling to obtain the fabric.

[0057] Test results: warp breaking strength 500N, weft breaking strength 450N, antibacterial rate 99%, wrinkle recovery angle 280°.

[0058] Example 2

[0059] A method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0060] S1. Raw material pretreatment: The warp yarn raw material contains 60wt% wool fiber and 40wt% ultra-high molecular weight polyethylene fiber; the ultra-high molecular weight polyethylene fiber is subjected to plasma surface treatment at a power of 450W for 12min; after cleaning and combing the wool fiber, it is treated with 200W low-temperature plasma for 5min, then treated with 0.35wt% neutral protease solution at 50℃ for 20min, washed with water and dried at 85℃.

[0061] The weft yarn raw materials are mixed with ultra-high molecular weight polyethylene fiber, maleic anhydride and nano silica in a ratio of 100:7:3.5, melt-grafted at 170℃ for 1.5h, washed with water and dried at 70℃.

[0062] S2. Composite spinning: Two fibers are mixed and opened at a speed of 20m / min (roller spacing 7mm). The Sirospun process parameters are: spinning speed 100m / min, twist 1000 twists / meter, roller spacing 30mm, and draft ratio 6.5 times, to obtain 24tex warp yarn; the weft yarn has a linear density of 27tex after spinning.

[0063] S3. Weaving: The parameters of the air-jet loom are set as follows: shedding time 300°, weft force 180N, weaving speed 375 rpm, warp density 250 ends / 10cm, weft density 215 ends / 10cm, reed number 50, to produce the grey fabric.

[0064] S4. Finishing: Antibacterial finishing involves immersing in a 1.0wt% nano-silver solution at 50℃ for 30 minutes, washing with water, and drying at 90℃; Anti-wrinkle finishing involves padding with a 3.5wt% epoxy resin solution (75% roll-off rate), baking at 135℃ for 17 minutes; Setting treatment involves holding at 120℃ for 10 minutes with a tension of 65N, and cooling to obtain the fabric.

[0065] Test results: warp breaking strength 550N, weft breaking strength 490N, antibacterial rate 99.5%, wrinkle recovery angle 295°.

[0066] Example 3

[0067] A method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0068] S1. Raw material pretreatment: The warp yarn raw material contains 70wt% wool fiber and 30wt% ultra-high molecular weight polyethylene fiber; the ultra-high molecular weight polyethylene fiber is subjected to plasma surface treatment with a power of 600W for 20min; after cleaning and combing the wool fiber, it is treated with 250W low-temperature plasma for 8min, then treated with 0.5wt% neutral protease solution at 55℃ for 25min, washed with water and dried at 90℃.

[0069] The weft yarn raw materials are mixed with ultra-high molecular weight polyethylene fiber, maleic anhydride and nano silica in a ratio of 100:10:5, melt-grafted at 180°C for 2 hours, washed with water and dried at 80°C.

[0070] S2. Composite spinning: Two fibers are mixed and opened at a speed of 25m / min (roller gap 10mm). The Sirospun process parameters are: spinning speed 120m / min, twist 1200 twists / meter, roller gap 40mm, draft ratio 8 times, to produce 30tex warp yarn; the weft yarn has a linear density of 35tex after spinning.

[0071] S3. Weaving: The parameters of the air-jet loom are set as follows: shedding time 320°, weft force 220N, weaving speed 450 rpm, warp density 300 ends / 10cm, weft density 250 ends / 10cm, reed number 60, to produce the grey fabric.

[0072] S4. Finishing: Antibacterial finishing involves immersing in a 1.5wt% nano-silver solution at 60℃ for 40 minutes, washing with water, and drying at 100℃; Anti-wrinkle finishing involves padding with a 5wt% epoxy resin solution (80% roll-off rate), baking at 150℃ for 10 minutes; Setting treatment involves holding at 130℃ for 5 minutes with a tension of 80N, and cooling to obtain the fabric.

[0073] Test results: warp breaking strength 580N, weft breaking strength 510N, antibacterial rate 99.8%, wrinkle recovery angle 310°.

[0074] Examples 1-3 show that composite fabrics prepared using different process parameters can all meet the preset performance indicators: warp breaking strength ≥ 500 N, weft breaking strength ≥ 450 N, antibacterial rate ≥ 99%, and wrinkle recovery angle ≥ 280°. This proves that the process system can stably produce composite fabrics that meet the requirements within a wide parameter range. With the increase of plasma treatment power and treatment time, the ratio of maleic anhydride to nano-silica increases, and parameters such as spinning twist, weaving density, and finishing agent concentration are improved within a reasonable range. The performance indicators of the fabric, such as breaking strength, antibacterial rate, and wrinkle recovery angle, show a gradual optimization trend. Compared with Example 1, Example 3 shows a 16% increase in warp breaking strength and a 10.7% increase in wrinkle recovery angle. It can be seen that the synergistic adjustment of process parameters at each stage can further enhance the interfiber bonding force, optimize the fabric structure and function, and achieve a step-by-step improvement in performance.

[0075] Therefore, this invention employs the aforementioned method for manufacturing a wool and ultra-high molecular weight polyethylene (UHMWPE) fiber composite fabric. The UHMWPE fiber undergoes plasma surface treatment to enhance its surface activity and affinity with wool fiber. The wool fiber is then subjected to impurity removal, combing, low-temperature plasma treatment, and protease treatment, which not only removes impurities and optimizes the fiber structure but also improves its surface activity, laying a solid foundation for subsequent composite processing. Furthermore, the weft yarn raw material is modified using a compound of UHMWPE fiber, maleic anhydride, and nano-silica, further enhancing the bonding force between fibers and overall performance.

[0076] In the composite spinning stage, Sirospinning technology is employed and relevant parameters are optimized to ensure that the pretreated fibers are uniformly mixed and form a structurally stable composite yarn. This effectively improves the yarn's strength and consistency, guaranteeing the fabric's mechanical properties. During the weaving process, a specific combination of warp and weft yarns, combined with optimized process parameters of the air-jet loom, results in a dense and uniform fabric structure. This avoids defects that are prone to occur in traditional weaving, creating favorable conditions for subsequent finishing processes.

[0077] In the finishing process, the synergistic effect of antibacterial finishing, wrinkle-resistant finishing, and setting treatment gives the composite fabric excellent antibacterial and wrinkle-resistant properties, as well as good dimensional stability. Antibacterial finishing provides the fabric with a lasting antibacterial effect, wrinkle-resistant finishing improves the wrinkle-prone nature of wool fibers, and setting treatment ensures the fabric's shape stability during use. Furthermore, optional softening finishing further enhances the fabric's tactile comfort, resulting in a composite fabric that maintains high strength while possessing good functionality and wearability, meeting the needs of various applications.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for manufacturing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, characterized in that, Includes the following steps: S1. Raw material pretreatment: Select wool fiber and ultra-high molecular weight polyethylene fiber as warp raw materials, with wool fiber accounting for 50-70 wt% and ultra-high molecular weight polyethylene fiber accounting for 30-50 wt%. Perform plasma surface treatment on ultra-high molecular weight polyethylene fiber with a treatment power of 300-600W and a treatment time of 5-20 min to improve its interfacial bonding with wool fiber. Remove impurities and comb the wool fiber, and then treat it with low-temperature plasma treatment. Then treat it with a neutral protease solution with a concentration of 0.2-0.5 wt% at 45-55℃ for 15-25 min. After treatment, wash it with water until neutral and dry it at 80-90℃ to obtain surface-modified wool fiber. To prepare the weft yarn raw material, ultra-high molecular weight polyethylene fiber, maleic anhydride, and nano silica were mixed in a mass ratio of 100:5-10:2-5 and subjected to a melt grafting reaction at 160-180℃ for 1-2 hours. After the reaction, the mixture was washed with water and dried at 60-80℃ to obtain maleic anhydride-nano silica composite modified polyethylene fiber. S2. Composite spinning: Pretreated wool fibers and ultra-high molecular weight polyethylene fibers are composite spun using Siro spinning process. The spinning speed is set to 80-120m / min, the twist is 800-1200 twists / meter, and the roller spacing is 20-40mm to obtain composite yarn with a linear density of 18-30tex. Maleic anhydride-nano silica composite modified polyethylene fibers are spun to obtain yarn. S3. Weaving: Using the composite yarn obtained in step S2 as the warp yarn and the maleic anhydride-nano silica composite modified polyethylene yarn as the weft yarn, the fabric is woven using an air-jet loom; the weaving process parameters are set as follows: shedding time 280-320°, weft insertion force 150-220N, and weaving speed 300-450 rpm to obtain the grey fabric. S4. Finishing: The fabric is subjected to antibacterial finishing, anti-wrinkle finishing, and setting treatment in sequence; the antibacterial finishing is to impregnate the fabric with a nano-silver antibacterial agent solution with a concentration of 0.5-1.5wt%, the impregnation temperature is 40-60℃, and the impregnation time is 20-40min; the anti-wrinkle finishing is to impregnate the fabric with an epoxy resin anti-wrinkle agent solution with a concentration of 2-5wt%, the roll-up rate is 70-80%, and then bake at 120-150℃ for 10-25min; the setting treatment temperature is 110-130℃, and the setting time is 5-15min. The composite fabric obtained through the above steps has a warp breaking strength ≥500N, a weft breaking strength ≥450N, an antibacterial rate ≥99%, and a wrinkle recovery angle ≥280°.

2. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, The specific parameters for the plasma surface treatment of ultra-high molecular weight polyethylene fibers in step S1 are as follows: treatment power 400-500W, treatment time 8-15min, treatment atmosphere is argon, argon flow rate 10-20L / min; the low-temperature plasma treatment power for wool fibers is 150-250W, time 3-8min, and atmosphere is oxygen.

3. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, The Sirospun process in step S2 further includes: mixing and opening wool fibers and ultra-high molecular weight polyethylene fibers before spinning, with a mixing and opening speed of 15-25 m / min and a gap of 5-10 mm between the opening rollers.

4. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, The grafting rate of the maleic anhydride-nano silica composite modified polyethylene fiber yarn in step S3 is 3-8%, and the linear density is 20-35 tex.

5. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, Step S4, after the antibacterial finishing, also includes a washing step: washing the fabric with deionized water at 30-40℃ for 10-20 minutes, washing 2-3 times, and then drying at 80-100℃ until the moisture content is ≤5%.

6. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, The finishing process described in step S4 also includes softening finishing: after wrinkle-resistant finishing, the fabric is impregnated with a silicone softener solution with a concentration of 1-3 wt%, with a roll-off rate of 65-75%, and then dried at 90-110°C for 15-25 min.

7. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, In step S1, the wool fibers are combed using a double cylinder double doffer carding machine, with a cylinder speed of 300-400 r / min and a doffer speed of 20-30 r / min.

8. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, The draft ratio of the Siro spinning process in step S2 is 5-8 times, with the front roller speed being 100-130 m / min, the middle roller speed being 20-30 m / min, and the back roller speed being 5-10 m / min.

9. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, In step S3, the warp density of the weaving process is 200-300 warp threads / 10cm, the weft density is 180-250 warp threads / 10cm, and the reed number is 40-60.

10. The method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that, The shaping process described in step S4 uses a hot air shaping machine with a shaping tension of 50-80N. After shaping, cold air is used for cooling at a temperature of 20-30℃ for 3-8 minutes.