Functional core-spun yarn containing camel hair and preparation method of functional core-spun yarn

Abstract

The invention discloses a functional core-spun yarn containing camel hair and a preparation method of the functional core-spun yarn. The functional core-spun yarn comprises modified camel hair fibers, N-acetyl ethanolamine, a softening finishing agent, an antistatic agent, a lubricant and a resultant yarn stabilizing aid. The modified camel hair fiber is characterized in that camel hair fiber is used as a matrix and is synergistically modified by a polyphenol compound, a nitrogen-containing organosilicon compound and a metal salt cross-linking agent, and a stable functional modified layer is formed on the surface of the fiber; meanwhile, N-acetyl ethanolamine is introduced into a core spun yarn system to adjust the microenvironment on the surface of the fiber. The functional covering yarn is prepared through a covering spinning process. The natural softness and warm keeping characteristics of the camel hair are kept, meanwhile, the resultant yarn stability, the rebound recovery performance, the antistatic performance and the washable performance of the covering yarn are remarkably improved, and good application prospects are achieved.

Description

Technical Field

[0001] This invention relates to the field of textile materials technology, specifically to a functional core-spun yarn containing Arctic camel hair and its preparation method. Background Technology

[0002] Core-spun yarn is a composite yarn structure consisting of a high-strength or high-elasticity fiber as the core and an outer layer of natural or chemical fibers. It combines the mechanical properties of the core yarn with the comfort and aesthetic properties of the outer fibers, and is widely used in thermal clothing, functional underwear, and high-end textiles. As consumers' demands for warmth, comfort, and functionality in textiles continue to increase, functional core-spun yarns using high-performance natural animal fibers as the outer layer are gradually becoming a research and application hotspot.

[0003] Arctic camel hair is a rare natural animal fiber with fine fibers, a well-developed hollow structure, and high air content, exhibiting excellent warmth retention, softness, and lightweight characteristics, making it a promising candidate for high-end thermal textiles. However, the prominent scale structure and large specific surface area of ​​Arctic camel hair fibers can lead to insufficient cohesion, poor abrasion resistance, and poor yarn stability during spinning, limiting its stable application in core-spun yarn structures.

[0004] In existing technologies, softening finishing, antistatic finishing, or simple surface treatments are commonly used to improve the processing and wearing properties of natural animal fibers in core-spun yarn. These treatments often rely on a single finishing agent, resulting in limited modification depth, and the finishing effect easily diminishes during washing or repeated use, making it difficult to simultaneously achieve durability, resilience, and antistatic properties. Furthermore, current core-spun yarn technologies for modifying natural animal fibers primarily focus on the physical adhesion of conventional auxiliaries, lacking modification methods that construct stable functional structures at the molecular or interfacial level.

[0005] On the other hand, in existing core-spun yarn systems, the functional components introduced are mostly finishing agents or polymer materials commonly used in the field. There are few applications of small organic molecules for fiber microenvironment regulation. In particular, there are no public reports of introducing small organic molecules with specific structures into Arctic camel wool core-spun yarn systems to achieve synergistic improvement in antistatic properties, resilience, and functional durability.

[0006] Therefore, the existing technology still has the following shortcomings: First, the interfacial stability and yarn performance of Arctic camel hair fiber in core-spun yarn need to be improved; second, the existing modification methods are difficult to achieve synergistic improvement of multiple properties and have insufficient durability; third, there is a lack of functional core-spun yarn technology solutions that combine specific organic small molecules with modified natural fibers. Summary of the Invention

[0007] To overcome the challenges posed by the poor interfacial stability, insufficient yarn performance, low durability of functional finishing, and the difficulty in achieving synergistic enhancement of various performance characteristics of Arctic camel wool fibers in core-spun yarns, as well as the limitations of existing technologies in achieving such synergistic improvements, this invention aims to provide a functional core-spun yarn containing Arctic camel wool and its preparation method. This is achieved by synergistically modifying Arctic camel wool fibers and introducing specific small organic molecules to construct a stable functionalized coating system. This invention uses Arctic camel wool fibers synergistically modified with polyphenolic compounds, nitrogen-containing organosilicon compounds, and metal salt crosslinking agents as the coating material. N-acetylethanolamine is introduced into the core-spun yarn system, along with softening agents, antistatic agents, lubricants, and yarn stabilizing agents, to obtain a functional core-spun yarn containing Arctic camel wool. This invention significantly improves the yarn stability, resilience, and antistatic properties of the core-spun yarn while maintaining the natural softness and warmth of Arctic camel wool, and enhances the durability of related functions.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] A functional core-spun yarn containing Arctic camel hair, the functional core-spun yarn comprising the following raw materials in parts by weight: 80-95 parts modified Arctic camel hair fiber; 0.1-3.0 parts N-acetylethanolamine; 0.1-2.0 parts softening agent; 0.1-2.0 parts antistatic agent; 0.1-1.5 parts lubricant; and 0.1-1.5 parts yarn stabilizing agent; wherein the modified Arctic camel hair fiber is obtained by using Arctic camel hair fiber as a matrix and synergistically modifying the Arctic camel hair fiber with polyphenolic compounds, nitrogen-containing organosilicon compounds and metal salt crosslinking agents, so that a stable functional modified layer is formed on the surface of the Arctic camel hair fiber.

[0010] Optionally, the modified Arctic camel hair fiber comprises the following raw materials in parts by weight: 80-95 parts Arctic camel hair fiber; 0.5-4.0 parts polyphenolic compound; 0.5-3.0 parts nitrogen-containing organosilicon compound; and 0.05-0.8 parts metal salt crosslinking agent; wherein the polyphenolic compound refers to tannic acid; the nitrogen-containing organosilicon compound refers to 3-aminopropyltriethoxysilane; and the metal salt crosslinking agent refers to ferric chloride.

[0011] Optionally, the method for preparing modified Arctic camel hair fiber includes the following steps:

[0012] (1) Pre-treat the Arctic camel hair fibers to make them dispersed to obtain a camel hair dispersion system;

[0013] (2) Tannic acid, 3-aminopropyltriethoxysilane and ferric chloride were added sequentially to the camel hair dispersion system to synergistically modify the Arctic camel hair fiber and obtain the synergistically modified camel hair system.

[0014] (3) The synergistic modified camel hair system was post-treated to obtain modified Arctic camel hair fiber.

[0015] Optionally, the reaction conditions for step (1) are dispersion treatment in deionized water and stirring at 25-45°C for 10-30 min.

[0016] Optionally, the reaction conditions for step (2) are to carry out the synergistic modification reaction at 25-60℃ for a reaction time of 30-120 min.

[0017] Optionally, the reaction conditions in step (3) are to wash and dry the synergistically modified camel hair system at a temperature of 50-80°C for 2-8 hours.

[0018] Optionally, the softening agent is a mixture of amino-modified polydimethylsiloxane and fatty alcohol polyoxyethylene ether in a mass ratio of 3:1; the antistatic agent is a mixture of N-acetylethanolamine and glycerin in a mass ratio of 2:1; the lubricant is a mixture of polyethylene glycol and white oil in a mass ratio of 1:1; and the yarn stabilizing agent is a mixture of polyvinylpyrrolidone and sodium carboxymethyl cellulose in a mass ratio of 1:2.

[0019] Optionally, a method for preparing a functional core-spun yarn containing Arctic camel hair, the method comprising the following steps:

[0020] S1, Modified Arctic camel hair fiber is mixed with N-acetylethanolamine, softening agent, antistatic agent, lubricant and yarn stabilizing agent to obtain functional fiber mixture;

[0021] S2, using yarn core as core material, the functional fiber mixture is coated and spun to form a coating layer covering the outside of the yarn core;

[0022] S3. The obtained core-spun yarn is subjected to a setting treatment to obtain a functional core-spun yarn containing Arctic camel hair.

[0023] Optionally, the reaction conditions for step S1 are as follows: the modified Arctic camel hair fiber is mixed with N-acetylethanolamine, softening agent, antistatic agent, lubricant and yarn stabilizing agent at room temperature for 10-30 min; the reaction conditions for step S2 are as follows: the yarn is formed by covering spinning at a spinning speed of 200-600 m / min; the reaction conditions for step S3 are as follows: the core-spun yarn is set at a setting temperature of 80-120℃ for 1-5 min.

[0024] The beneficial effects of this invention are:

[0025] This invention employs polyphenolic compounds, nitrogen-containing organosilicon compounds, and metal salt crosslinking agents to synergistically modify Arctic camel hair fibers, constructing a stable and dense functional modified layer on the surface of the camel hair fibers. This significantly enhances the interfacial bonding ability between the camel hair fibers and the core-spun yarn system, effectively improving the yarn stability and abrasion resistance of Arctic camel hair in core-spun yarn. Simultaneously, by introducing N-acetylethanolamine into the core-spun yarn system, a stable hydrogen bond network is formed on the fiber surface and between fibers, significantly reducing static electricity accumulation and improving the yarn's resilience. Thus, Arctic camel hair core-spun yarn achieves simultaneous improvement in yarn stability, antistatic properties, and resilience without significantly affecting its warmth retention. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 A comparison of the infrared spectra of Arctic camel hair fiber and modified Arctic camel hair fiber;

[0028] Figure 2 A comparison chart showing the yarn stability results of samples with different formulation ratios. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. However, the present invention is not limited to the following embodiments. Equivalent adjustments made without departing from the spirit and essence of the present invention should also be considered to fall within the protection scope of the present invention.

[0030] Example 1:

[0031] This embodiment aims to verify that when the dosage of each component and the reaction conditions are at their lower limits, it is still possible to obtain structurally stable modified Arctic camel wool fibers that can be used for core-spun yarn preparation by modifying Arctic camel wool fibers through synergistic modification, and to achieve the preparation of functional core-spun yarn.

[0032] Preparation method

[0033] S1, Preparation process of modified Arctic camel hair fiber

[0034] Weigh 80 parts of Arctic camel hair fiber and add it to deionized water for dispersion treatment. Stir at 25°C for 10 min to obtain a camel hair dispersion system. Add 0.5 parts of tannic acid to the camel hair dispersion system and stir evenly. Then add 0.5 parts of 3-aminopropyltriethoxysilane and continue stirring. Add 0.05 parts of ferric chloride and react at 25°C for 30 min. After the reaction is completed, wash and dry the obtained synergistic modified camel hair system at 50°C for 2 h to obtain modified Arctic camel hair fiber.

[0035] S2, Functional Fiber Blend

[0036] The modified Arctic camel hair fiber was mixed with 0.1 parts of N-acetylethanolamine, 0.1 parts of softening agent, 0.1 parts of antistatic agent, 0.1 parts of lubricant and 0.1 parts of yarn stabilizing agent for 10 minutes to obtain a functionalized fiber mixture.

[0037] S3, Preparation and shaping of core-spun yarn

[0038] Using the yarn core as the core material, the functional fiber mixture is coated and spun at a spinning speed of 200 m / min; then the resulting core-spun yarn is set at a setting temperature of 80°C for 1 min to obtain a functional core-spun yarn containing Arctic camel hair.

[0039] Example 2:

[0040] This embodiment aims to verify the effect of the synergistic effect of modified Arctic camel hair fiber and organic small molecules on improving the overall performance of core-spun yarn when the dosage of each component and the reaction conditions are within the median range.

[0041] Preparation method

[0042] S1, Preparation process of modified Arctic camel hair fiber

[0043] Weigh 88 parts of Arctic camel hair fiber, add it to deionized water and disperse it. Stir at 35°C for 20 minutes to obtain a camel hair dispersion system.

[0044] Add 2.0 parts of tannic acid to the camel hair dispersion system, stir evenly, add 1.5 parts of 3-aminopropyltriethoxysilane, and then add 0.4 parts of ferric chloride. React at 40℃ for 60 min. After the reaction is completed, wash and dry the synergistically modified camel hair system at 65℃ for 5 h to obtain modified Arctic camel hair fiber.

[0045] S2, Functional Fiber Blend

[0046] The modified Arctic camel hair fiber was mixed with 1.5 parts of N-acetylethanolamine, 1.0 part of softening agent, 1.0 part of antistatic agent, 0.8 parts of lubricant and 0.8 parts of yarn stabilizing agent for 20 minutes to obtain a functionalized fiber mixture.

[0047] S3, Preparation and shaping of core-spun yarn

[0048] Core-spun yarn containing Arctic camel hair was produced by using the yarn core as the core material and spinning at a linear speed of 400 m / min. The yarn was then set at 100℃ for 3 min.

[0049] Example 3:

[0050] This embodiment aims to verify the sufficiency of the synergistic modification system on the surface modification effect of Arctic camel hair fiber and its feasibility in preparing core-spun yarn under high functional load conditions when the dosage of each component and the reaction conditions are at their upper limits.

[0051] Preparation method

[0052] S1, Preparation process of modified Arctic camel hair fiber

[0053] Weigh 95 parts of Arctic camel hair fiber, add it to deionized water and disperse it. Stir at 45℃ for 30 min to obtain a camel hair dispersion system. Add 4.0 parts of tannic acid to the camel hair dispersion system, stir, add 3.0 parts of 3-aminopropyltriethoxysilane, and then add 0.8 parts of ferric chloride. React at 60℃ for 120 min. After the reaction is completed, wash and dry the synergistically modified camel hair system at 80℃ for 8 h to obtain modified Arctic camel hair fiber.

[0054] S2, Functional Fiber Blend

[0055] The modified Arctic camel hair fiber was mixed with 3.0 parts of N-acetylethanolamine, 2.0 parts of softening agent, 2.0 parts of antistatic agent, 1.5 parts of lubricant and 1.5 parts of yarn stabilizing agent for 30 minutes to obtain a functional fiber mixture.

[0056] S3, Preparation and shaping of core-spun yarn

[0057] The yarn was produced by covering spinning at a linear speed of 600 m / min; then it was set at 120℃ for 5 min to obtain functional core-spun yarn containing Arctic camel hair.

[0058] Comparative Example 1:

[0059] This comparative example aims to verify the difference in the overall performance improvement of the core-spun yarn when only tannic acid is used to modify Arctic camel hair fibers, compared to the synergistic modification system in Example 2.

[0060] Preparation method

[0061] S1, Preparation process of modified Arctic camel hair fiber

[0062] Weigh 88 parts of Arctic camel hair fiber, add it to deionized water and disperse it. Stir at 35°C for 20 minutes to obtain a camel hair dispersion system.

[0063] Add 2.0 parts of tannic acid to the camel hair dispersion system and react at 40℃ for 60 min. After the reaction is completed, wash and dry the modified camel hair system at 65℃ for 5 h to obtain modified Arctic camel hair fiber.

[0064] S2, Functional Fiber Blend

[0065] The modified Arctic camel hair fiber was mixed with 1.5 parts of N-acetylethanolamine, 1.0 part of softening agent, 1.0 part of antistatic agent, 0.8 parts of lubricant and 0.8 parts of yarn stabilizing agent for 20 minutes to obtain a functionalized fiber mixture.

[0066] S3, Preparation and shaping of core-spun yarn

[0067] Core-spun yarn containing Arctic camel hair was produced by using the yarn core as the core material and spinning at a linear speed of 400 m / min. The yarn was then set at 100℃ for 3 min.

[0068] Comparative Example 2:

[0069] This comparative example aims to verify the difference in the overall performance improvement of the core-spun yarn obtained when only 3-aminopropyltriethoxysilane is used to modify Arctic camel hair fibers, compared with the synergistic modification system of Example 2.

[0070] Preparation method

[0071] S1, Preparation process of modified Arctic camel hair fiber

[0072] Weigh 88 parts of Arctic camel hair fiber, add it to deionized water and disperse it. Stir at 35°C for 20 minutes to obtain a camel hair dispersion system.

[0073] 1.5 parts of 3-aminopropyltriethoxysilane were added to the camel hair dispersion system and reacted at 40°C for 60 min. After the reaction was completed, the modified camel hair system was washed and dried at 65°C for 5 h to obtain modified Arctic camel hair fiber.

[0074] S2, Functional Fiber Blend

[0075] The modified Arctic camel hair fiber was mixed with 1.5 parts of N-acetylethanolamine, 1.0 part of softening agent, 1.0 part of antistatic agent, 0.8 parts of lubricant and 0.8 parts of yarn stabilizing agent for 20 minutes to obtain a functionalized fiber mixture.

[0076] S3, Preparation and shaping of core-spun yarn

[0077] Core-spun yarn containing Arctic camel hair was produced by using the yarn core as the core material and spinning at a linear speed of 400 m / min. The yarn was then set at 100℃ for 3 min.

[0078] Comparative Example 3:

[0079] This comparative example aims to verify the effect of not introducing organic small molecule N-acetylethanolamine on improving the overall performance of core-spun yarn while keeping the synergistic modification of Arctic camel hair fiber in Example 2 unchanged.

[0080] Preparation method

[0081] S1, Preparation process of modified Arctic camel hair fiber

[0082] Weigh 88 parts of Arctic camel hair fiber, add it to deionized water and disperse it. Stir at 35°C for 20 minutes to obtain a camel hair dispersion system.

[0083] Add 2.0 parts of tannic acid to the camel hair dispersion system, stir evenly, add 1.5 parts of 3-aminopropyltriethoxysilane, and then add 0.4 parts of ferric chloride. React at 40℃ for 60 min. After the reaction is completed, wash and dry the synergistically modified camel hair system at 65℃ for 5 h to obtain modified Arctic camel hair fiber.

[0084] S2, Functional Fiber Blend

[0085] The modified Arctic camel hair fiber was mixed with 1.0 part of softening agent, 1.0 part of antistatic agent, 0.8 part of lubricant and 0.8 part of yarn stabilizing agent for 20 minutes to obtain a functional fiber mixture.

[0086] S3, Preparation and shaping of core-spun yarn

[0087] Core-spun yarn containing Arctic camel hair was produced by using the yarn core as the core material and spinning at a linear speed of 400 m / min. The yarn was then set at 100℃ for 3 min.

[0088] Performance testing:

[0089] 1. Yarn stability test methods and result analysis

[0090] The core-spun yarns obtained in Examples 1, 2, 3, and Comparative Examples 1-3 were subjected to continuous spinning tests under the same spinning equipment and process conditions. The yarn stability was comprehensively evaluated by observing yarn breakage, hairiness, and yarn uniformity during the spinning process. The test results showed that Example 1 could still achieve continuous spinning under low addition levels and mild modification conditions, but its yarn uniformity and stability were relatively average. Example 2 exhibited the fewest yarn breakages, uniform yarn formation, and significantly reduced hairiness under median conditions, demonstrating the best yarn stability. Example 3 maintained good yarn continuity under high addition levels and enhanced modification conditions, but its yarn stability was slightly lower than that of Example 2 due to the higher degree of fiber surface modification. Comparative Examples 1 and 2, due to the use of only a single modification method, had insufficient fiber interfacial bonding ability, resulting in more pronounced yarn breakage and hairiness during spinning. Although Comparative Example 3 used synergistically modified fibers, it did not introduce organic small molecules, and its yarn stability was still lower than that of Examples 1-3, indicating that synergistic modification and the synergistic introduction of organic small molecules have a significant effect on improving the yarn stability of core-spun yarn.

[0091] 2. Test methods and results analysis for rebound recovery performance

[0092] The core-spun yarns obtained in Examples 1, 2, 3, and Comparative Examples 1-3 were woven into fabric samples with the same structure. These samples were compressed and released under the same external force conditions. The resilience performance was evaluated by observing the fabric thickness and shape recovery. The results showed that the sample of Example 1 could basically recover its original shape after compression and release, but the recovery speed and bulkiness were limited. The sample of Example 2 recovered quickly, maintained good fabric bulkiness, and exhibited the best resilience performance. The sample of Example 3 showed good initial resilience, but the recovery amplitude decreased slightly after repeated compression. Comparative Examples 1 and 2 showed significant collapse after repeated compression, indicating weak resilience. Although Comparative Example 3 was better than the single-modified sample, it was still inferior to Examples 1-3. This suggests that synergistic modification of Arctic camel hair fibers and the introduction of N-acetylethanolamine help form a stable flexible network between fibers, thereby significantly improving the resilience performance of the core-spun yarn.

[0093] 3. Antistatic performance test methods and result analysis

[0094] Under constant temperature and humidity conditions, the core-spun yarn fabric samples obtained in Examples 1, 2, 3, and Comparative Examples 1-3 were subjected to friction treatment. The antistatic properties were evaluated by observing the accumulation and release of static electricity on the fabric surface. Test results showed that the static electricity accumulation in the Example 1 sample decreased after friction, but some static electricity still existed under low humidity conditions. The Example 2 sample had the least static electricity accumulation, a fast static electricity release rate, and significantly reduced discomfort from static electricity when worn. The antistatic properties of the Example 3 sample remained stable under high addition conditions, but the improvement compared to Example 2 was no longer significant. The antistatic properties of Comparative Examples 1 and 2 samples showed no significant improvement. Although Comparative Example 3 used synergistically modified fibers, the static electricity release capacity was still insufficient due to the lack of introduced organic small molecules, further demonstrating the important role of N-acetylethanolamine in improving the antistatic properties of core-spun yarn in the synergistic modification system.

[0095] 4. Washability test methods and result analysis

[0096] The core-spun yarn fabric samples obtained in Examples 1, 2, and 3, and Comparative Examples 1-3 were subjected to multiple washes under the same washing conditions. The appearance, hand feel, resilience, and antistatic properties of the samples were comprehensively evaluated after washing. The results showed that the functional performance of Example 1 decreased somewhat after multiple washes, but it was still better than the comparative examples overall. Example 2 maintained good appearance and hand feel after multiple washes, with the least decrease in related functional performance, exhibiting the best wash resistance stability. Example 3 maintained relatively stable functional performance under high load conditions, but the hand feel changed slightly after washing. The functional performance of Comparative Examples 1 and 2 decreased significantly after washing. Although Comparative Example 3 was better than the single-modification sample, it was still inferior to Examples 1-3, indicating that synergistic modification and the synergistic effect of organic small molecules can significantly improve the wash resistance stability of functional core-spun yarn.

[0097] Table 1 Performance test results of the examples and comparative examples

[0098] Sample number Yarn stability (number of yarn breaks, times / 10,000 meters) Rebound recovery rate (%) Electrostatic voltage (V) Performance retention rate (%) after 20 washes Example 1 6.2 82.5 620 84 Example 2 2.8 91.3 280 93 Example 3 4.1 86.7 410 88 Comparative Example 1 12.6 63.4 1350 58 Comparative Example 2 10.9 66.8 1210 61 Comparative Example 3 8.4 74.2 820 72

[0099] As shown in Table 1, Examples 1, 2, and 3 showed significant differences from Comparative Examples 1 to 3 in terms of yarn stability, resilience, antistatic properties, and washability. Among them, the overall performance of Examples 1, 2, and 3 was better than that of the Comparative Examples, and Example 2 achieved the best performance in all performance indicators.

[0100] Regarding yarn stability, Figure 1The number of yarn breaks in Example 2 was only 2.8 times / 10,000 meters, significantly lower than that in Example 1 (6.2 times / 10,000 meters) and Example 3 (4.1 times / 10,000 meters), indicating that it has the best yarn continuity and stability during the spinning process. In contrast, the number of yarn breaks in Comparative Examples 1, 2, and 3 were 12.6 times / 10,000 meters, 10.9 times / 10,000 meters, and 8.4 times / 10,000 meters, respectively, all significantly higher than those in Example 2, indicating that systems with single modification or lacking organic small molecules are difficult to achieve stable yarn formation.

[0101] In terms of resilience, the resilience of Example 2 reached 91.3%, which was significantly higher than 82.5% of Example 1 and 86.7% of Example 3; while the resilience of Comparative Examples 1 and 2 was only 63.4% and 66.8%, respectively. Although Comparative Example 3 improved to 74.2%, it was still significantly lower than the examples. This indicates that synergistic modification of Arctic camel hair fiber and introduction of organic small molecules help to significantly improve the resilience of core-spun yarn.

[0102] Regarding antistatic performance, Example 2 exhibited the lowest electrostatic voltage at only 280 V, while Examples 3 and 1 showed 410 V and 620 V respectively, both at relatively low levels. In contrast, Comparative Examples 1, 2, and 3 showed electrostatic voltages as high as 1350 V, 1210 V, and 820 V respectively, indicating significant electrostatic accumulation. This further demonstrates that the introduction of N-acetylethanolamine based on synergistic modification can effectively reduce electrostatic accumulation in core-spun yarn.

[0103] In terms of washability, Example 2 still maintained a performance retention rate of up to 93% after 20 washes, while Examples 3 and 1 maintained 88% and 84% respectively, demonstrating good functional durability. In contrast, Comparative Examples 1, 2 and 3 maintained only 58%, 61% and 72% respectively, showing significant performance degradation after washing, indicating that the synergistic modified structure formed by the present invention has higher stability.

[0104] In summary, by synergistically modifying Arctic camel hair fibers and introducing specific organic small molecules, the core-spun yarn achieves simultaneous improvement in yarn stability, resilience, antistatic properties, and washability. Among these, Example 2 shows the best performance in all key indicators, fully demonstrating the significant advantages of the technical solution of this invention in terms of comprehensive performance.

Claims

1. A functional core-spun yarn containing Arctic camel hair, characterized in that, The functional core-spun yarn comprises the following raw materials in parts by weight: 80-95 parts modified Arctic camel hair fiber; 0.1-3.0 parts N-acetylethanolamine; 0.1-2.0 parts softening agent; 0.1-2.0 parts antistatic agent; and 0.1-1.5 parts lubricant. 0.1 to 1.5 parts of yarn stabilizing agent; wherein the modified Arctic camel hair fiber is obtained by using Arctic camel hair fiber as a matrix and synergistically modifying the Arctic camel hair fiber with polyphenolic compounds, nitrogen-containing organosilicon compounds and metal salt crosslinking agents, so that a stable functional modified layer is formed on the surface of the Arctic camel hair fiber.

2. The functional core-spun yarn containing Arctic camel hair according to claim 1, characterized in that, The modified Arctic camel hair fiber comprises the following raw materials in parts by weight: 80-95 parts Arctic camel hair fiber; 0.5-4.0 parts polyphenolic compound; 0.5-3.0 parts nitrogen-containing organosilicon compound; and 0.05-0.8 parts metal salt crosslinking agent. The polyphenolic compound refers to tannic acid; the nitrogen-containing organosilicon compound refers to 3-aminopropyltriethoxysilane; and the metal salt crosslinking agent refers to ferric chloride.

3. A functional core-spun yarn containing Arctic camel hair according to claim 1 or 2, characterized in that, The method for preparing the modified Arctic camel hair fiber includes the following steps: (1) Pre-treat the Arctic camel hair fibers to make them dispersed to obtain a camel hair dispersion system; (2) Tannic acid, 3-aminopropyltriethoxysilane and ferric chloride were added sequentially to the camel hair dispersion system to synergistically modify the Arctic camel hair fiber and obtain the synergistically modified camel hair system. (3) The synergistic modified camel hair system was post-treated to obtain modified Arctic camel hair fiber.

4. The functional core-spun yarn containing Arctic camel hair according to claim 3, characterized in that, The reaction conditions for step (1) are dispersion treatment in deionized water and stirring at 25-45°C for 10-30 min.

5. The functional core-spun yarn containing Arctic camel hair according to claim 3, characterized in that, The reaction conditions for step (2) are a synergistic modification reaction at 25–60°C for a reaction time of 30–120 min.

6. The functional core-spun yarn containing Arctic camel hair according to claim 3, characterized in that, The reaction conditions for step (3) are to wash and dry the synergistically modified camel hair system at a temperature of 50-80°C for 2-8 hours.

7. The functional core-spun yarn containing Arctic camel hair according to claim 1, characterized in that, The softening agent is a mixture of amino-modified polydimethylsiloxane and fatty alcohol polyoxyethylene ether in a mass ratio of 3:1; the antistatic agent is a mixture of N-acetylethanolamine and glycerin in a mass ratio of 2:1; the lubricant is a mixture of polyethylene glycol and white oil in a mass ratio of 1:1; and the yarn stabilizing agent is a mixture of polyvinylpyrrolidone and sodium carboxymethyl cellulose in a mass ratio of 1:

2.

8. A method for preparing a functional core-spun yarn containing Arctic camel hair, characterized in that, The preparation method includes the following steps: S1, Modified Arctic camel hair fiber is mixed with N-acetylethanolamine, softening agent, antistatic agent, lubricant and yarn stabilizing agent to obtain functional fiber mixture; S2, using yarn core as core material, the functional fiber mixture is coated and spun to form a coating layer covering the outside of the yarn core; S3. The obtained core-spun yarn is subjected to a setting treatment to obtain a functional core-spun yarn containing Arctic camel hair.

9. The method for preparing a functional core-spun yarn containing Arctic camel hair according to claim 8, characterized in that, The reaction conditions for step S1 are as follows: the modified Arctic camel hair fiber is mixed with N-acetylethanolamine, softening agent, antistatic agent, lubricant and yarn stabilizing agent at room temperature for 10-30 min; the reaction conditions for step S2 are as follows: the yarn is formed by covering spinning at a spinning speed of 200-600 m / min; the reaction conditions for step S3 are as follows: the core-spun yarn is set at a setting temperature of 80-120℃ for 1-5 min.

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