Breathable cashmere blended yarn

Abstract

The invention relates to the technical field of blended yarns, in particular to a breathable cashmere blended yarn, which is characterized in that cashmere yarns obtained by blending are immersed in a softening agent immersion liquid for one-time immersion and one-time rolling treatment, so that a softening agent can be uniformly attached to the surfaces of the yarns, the friction coefficient of the yarns is effectively reduced, and the softness, smoothness and bulkiness of the yarns are improved; the hand feeling of the yarn is improved, so that the prepared textile is more skin-friendly and comfortable; through the synergistic effect of various fibers and special modification treatment, the breathable cashmere blended yarn has excellent breathability, and can enable air to circulate freely, effectively discharge sweat and moisture generated by a human body and keep the human body dry and comfortable when being used as a garment material or other textile materials; and the garment is particularly suitable for being worn in warm or sports scenes, and the comfort and practicability of the product are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of blended yarns, in particular to a breathable cashmere blended yarn. Background Art

[0002] Cashmere, beloved by consumers for its delicate, soft, warm, and lightweight qualities, is often used in high-end clothing and accessories. However, pure cashmere products have significant limitations in terms of breathability. The naturally dense scale structure of cashmere fibers hinders the flow of air and moisture, making it difficult for sweat produced by exercise to be quickly expelled. This can lead to wearers experiencing heat and humidity in warm environments or during exercise, significantly compromising comfort. This significantly limits the application of cashmere products.

[0003] While cashmere blended yarns currently on the market attempt to combine the strengths of different fibers, the technology is still imperfect, and most products employ simple and crude fiber modification methods. For example, cleaning cashmere fibers often relies on traditional chemical cleaning agents, which, while capable of removing impurities, can easily damage the fiber structure and properties, diminishing the natural advantages of cashmere. Modification methods for flax and Tencel fibers are limited, failing to fully unlock the potential of the fibers and achieving a deep integration and synergistic improvement in the performance advantages of each fiber. Therefore, how to create breathable yarns by blending cashmere with flax and Tencel through improved technology has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0004] Technical problems solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a breathable cashmere blended yarn, which can effectively solve the problem of poor air permeability of the cashmere blended yarn in the prior art.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A breathable cashmere blended yarn is prepared from the following components: cashmere fiber treated with biological enzymes, modified flax fiber, modified Tencel fiber and softener impregnation;

[0009] The bio-enzyme treated cashmere fiber is prepared by washing the cashmere fiber with a bio-enzyme cleaning solution;

[0010] The modified flax fiber is prepared by modifying flax fiber with silica aerogel;

[0011] The modified Tencel fiber is prepared by modifying Tencel fiber through adsorption of graphene oxide.

[0012] Furthermore, the preparation steps of the bio-enzyme cleaning solution are:

[0013] Step A: Weigh 8-10 g of sodium bis(2-ethylhexyl) sulfosuccinate, 9-10 g of cashmere detergent, 2 L of pure water, and 1 L of anhydrous ethanol, mix them, and evenly disperse them as the base liquid component;

[0014] Step B: adding 0.1-0.2g lipase, 0.1-0.2g pectinase and 0.4-0.5g neutral protease to the base liquid component, and performing ultrasonic dispersion treatment to obtain the bio-enzyme cleaning solution.

[0015] Furthermore, the method for uniform dispersion in step A is stirring at a speed of 300-500 r / min for 5-6 minutes, and the method for ultrasonic dispersion treatment in step B is ultrasonic dispersion at a power of 200 w for 10 minutes.

[0016] Furthermore, the preparation method of the biological enzyme treated cashmere fiber is:

[0017] Weigh 20g of cashmere fiber and immerse it in a 50℃ bio-enzyme cleaning solution for 50-60min. After soaking, heat it to 95℃ to inactivate the enzyme for 5min. After filtering, immerse it again in pure water and stir it at 100-200r / min for 5min. After filtering again, dry it at 45℃ for 5-6h. The result is bio-enzyme treated cashmere fiber.

[0018] Furthermore, the preparation steps of the modified flax fiber are:

[0019] Step 1: Weigh 10g of ethyl orthosilicate, 10-12g of anhydrous ethanol, 10-15g of pure water and 3-4g of hydrochloric acid, mix them, stir them evenly, then add 3g of ammonia water dropwise and catalyze the reaction for 10 minutes. The result is recorded as a sol precursor;

[0020] Step 2: Add flax fiber to the sol precursor at a weight ratio of 1:5, mix and disperse, pour into a beaker and let stand for 48 hours for aging, and the result is recorded as the gel component;

[0021] Step 3: Rinse the gel component with anhydrous ethanol to remove impurities on the surface of the flax fiber, then rinse twice with pure water, and dry to obtain the modified flax fiber.

[0022] Furthermore, the method for uniform stirring in step 1 is stirring at a speed of 300-400 r / min for 5-6 minutes, the method for mixing and dispersing in step 2 is stirring at a speed of 100-200 r / min for 5 minutes, and the method for drying in step 3 is drying at a temperature of 40°C for 8-10 hours.

[0023] Furthermore, the preparation steps of the modified Tencel fiber are:

[0024] Step i, immersing the Tencel fiber in an alkaline solution at a bath ratio of 1:30, stirring, rinsing with pure water three times, and drying at a temperature of 45° C. to constant weight, the obtained Tencel fiber is recorded as the pre-treated Tencel fiber;

[0025] Step ii, pouring graphene oxide into pure water and dispersing it evenly to prepare a dispersion with a mass fraction of 0.5%, immersing the pretreated Tencel fiber in the dispersion according to a bath ratio of 1:20, filtering out the filtrate after ultrasonic treatment and rinsing with pure water 3-5 times, then placing it in a microwave modification at a power of 300 W for 3 minutes, and finally drying it at a temperature of 45°C to constant weight to obtain the modified Tencel fiber.

[0026] Furthermore, the alkaline solution in step i is a sodium hydroxide solution with a mass fraction of 0.5%, the stirring method in step i is stirring at a speed of 100-200 r / min for 1 hour, the uniform dispersion method in step ii is ultrasonic dispersion at a power of 300 W for 10 minutes, and the ultrasonic treatment method in step ii is ultrasonic dispersion at a power of 200 W for 30 minutes.

[0027] Furthermore, the preparation method of the softener immersion liquid is:

[0028] Weigh 20-30g of silicone softener and disperse it in 1L of pure water. Stir at 500-600r / min for 30min to obtain the softener immersion solution.

[0029] Furthermore, the preparation method of the breathable cashmere blended yarn is:

[0030] S1. Cashmere yarn is prepared by blending 40% of bio-enzyme treated cashmere fiber, 30% of modified flax fiber and 30% of modified Tencel fiber;

[0031] S2. Immerse the cashmere yarn in a softener solution, immerse and press the yarn, and then dry the yarn at a temperature of 40-42° C. for 2-3 hours to obtain a breathable cashmere blended yarn.

[0032] Beneficial effects

[0033] The present invention provides a breathable cashmere blended yarn. Compared with the existing known technology, the present invention has the following beneficial effects:

[0034] 1. The cashmere fiber cleaned by the biological enzyme in the present invention can effectively remove impurities, grease, etc. on the surface of the cashmere fiber, making the fiber cleaner and improving the quality and purity of the cashmere fiber itself. In the subsequent blending process, it can better combine with other fibers, enhance the cohesion between fibers, and improve the overall performance of the yarn, such as strength and wear resistance. At the same time, the biological enzyme treatment process is mild and causes less damage to the cashmere fiber, which can retain the natural softness and warmth of the cashmere fiber. Secondly, the flax fiber is modified by using silica aerogel, which has a unique nanoporous structure. The porosity inside the fiber can be significantly increased, allowing air and moisture to pass through more smoothly, thereby greatly improving the breathability of the blended yarn, making the wearer feel more comfortable during wearing and reducing the feeling of stuffiness; the Tencel fiber in the present invention is modified by graphene oxide adsorption, and the unique lamellar structure and excellent performance of graphene oxide give the Tencel fiber new properties, which can improve the surface properties of the Tencel fiber and enable it to play a more unique role in the blended yarn. For example, the introduction of graphene oxide may help to improve the antibacterial properties, antistatic properties and breathability of the yarn, thereby further expanding the application range of the blended yarn.

[0035] 2. The present invention immerses the blended cashmere yarn into a softener immersion liquid for a dipping and rolling treatment, which can make the softener evenly adhere to the yarn surface, effectively reduce the friction coefficient of the yarn, improve the softness, smoothness and fluffiness of the yarn, improve the feel of the yarn, and make the prepared textile more skin-friendly and comfortable; and through the synergistic effect of multiple fibers and special modification treatment, the breathable cashmere blended yarn has excellent breathability. Whether it is used as clothing fabric or other textile materials, it can allow air to circulate freely, effectively discharge sweat and moisture produced by the human body, keep the body dry, and is particularly suitable for wearing in warm or sports scenes, greatly improving the comfort and practicality of the product. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] The present invention will be further described below with reference to the embodiments.

[0038] The sources of some components in the Examples and Comparative Examples are as follows:

[0039] Sodium bis(2-ethylhexyl) sulfosuccinate, Sinopharm Chemical Reagent Suzhou Co., Ltd.;

[0040] Cashmere cleaning agent, Liby cashmere coat cleaning agent;

[0041] Lipase, Suzhou Kesain Biotechnology Co., Ltd.;

[0042] Pectinase, Suzhou Kesain Biotechnology Co., Ltd.;

[0043] Neutral protease, Suzhou Kesain Biotechnology Co., Ltd.;

[0044] Tetraethyl orthosilicate, Shanghai Aladdin Biochemical Reagent Co., Ltd.;

[0045] Anhydrous ethanol, Xilong Chemical Co., Ltd.;

[0046] Hydrochloric acid, Sinopharm Chemical Reagent Co., Ltd.;

[0047] Ammonia water, Shanghai Aladdin Biochemical Reagent Co., Ltd.;

[0048] Flax fiber, Qiqihar Jinya Flax Textile Co., Ltd.;

[0049] Tencel fiber, length 38mm, Baoding Swan Chemical Fiber Group;

[0050] Graphene oxide, Tianjin Kemeiou Chemical Reagent Co., Ltd.;

[0051] Sodium hydroxide, Tianjin Kemeiou Chemical Reagent Co., Ltd.;

[0052] Silicone softener, Dongguan Jiahong Silicone Technology Co., Ltd.;

[0053] Example 1

[0054] A breathable cashmere blended yarn of this embodiment is made from the following components: cashmere fiber treated with bio-enzyme, modified flax fiber, modified Tencel fiber and softener impregnation;

[0055] The bio-enzyme treated cashmere fiber is obtained by washing the cashmere fiber with a bio-enzyme cleaning solution;

[0056] The preparation steps of the bio-enzyme cleaning solution are as follows:

[0057] Step A: Weigh 8 g of sodium bis(2-ethylhexyl) sulfosuccinate, 9 g of cashmere detergent, 2 L of pure water, and 1 L of anhydrous ethanol, mix them, and stir at a speed of 300 r / min for 5 min to record them as the base liquid component;

[0058] Step B: add 0.1 g lipase, 0.1 g pectinase and 0.4 g neutral protease to the base liquid component, and ultrasonically disperse at a power of 200 W for 10 minutes to obtain the bio-enzyme cleaning solution.

[0059] The preparation method of cashmere fiber treated with biological enzymes is as follows:

[0060] Weigh 20g of cashmere fiber and immerse it in a 50℃ bio-enzyme cleaning solution for 50min. After soaking, heat it to 95℃ and inactivate the enzyme for 5min. After filtration, immerse it again in pure water and stir it at 100r / min for 5min. After filtration again, dry it at 45℃ for 5h. The result is bio-enzyme treated cashmere fiber.

[0061] The modified flax fiber is prepared by modifying flax fiber with silica aerogel. The specific preparation steps are as follows:

[0062] Step 1: Weigh 10 g of ethyl orthosilicate, 10 g of anhydrous ethanol, 10 g of pure water, and 3 g of hydrochloric acid, mix them, stir them at a speed of 300 r / min for 5 min, then add 3 g of ammonia water dropwise and catalyze the reaction for 10 min. The result is recorded as a sol precursor;

[0063] Step 2: Add flax fiber into the sol precursor at a weight ratio of 1:5, stir at a speed of 100 r / min for 5 minutes, pour into a beaker and let it stand for 48 hours for aging. The result is recorded as the gel component;

[0064] Step 3: Rinse the gel component with anhydrous ethanol to remove impurities on the surface of the flax fiber, then rinse with pure water twice, and dry at 40° C. for 8 hours to obtain the modified flax fiber.

[0065] The modified Tencel fiber is obtained by modifying Tencel fiber by graphene oxide adsorption. The specific preparation steps are as follows:

[0066] Step i, immersing the Tencel fiber in a 0.5% by mass sodium hydroxide solution at a bath ratio of 1:30, stirring at a speed of 100 r / min for 1 hour, rinsing with pure water three times, and drying at a temperature of 45° C. to constant weight, the obtained Tencel fiber is recorded as the pre-treated Tencel fiber;

[0067] Step ii, pouring graphene oxide into pure water and ultrasonically dispersing it at a power of 300 W for 10 minutes to prepare a dispersion with a mass fraction of 0.5%, immersing the pretreated Tencel fiber in the dispersion at a bath ratio of 1:20, and ultrasonically dispersing it at a power of 200 W for 30 minutes, then filtering out the filtrate and rinsing it with pure water 3 times, then placing it at a power of 300 W for microwave modification for 3 minutes, and finally drying it at a temperature of 45°C to constant weight, to obtain the modified Tencel fiber.

[0068] The preparation method of the softener immersion liquid is as follows:

[0069] Weigh 20g of silicone softener and disperse it in 1L of pure water. Stir at 500r / min for 30min to obtain the softener immersion solution.

[0070] The preparation method of breathable cashmere blended yarn is as follows:

[0071] S1. Cashmere yarn is prepared by blending 40% of bio-enzyme treated cashmere fiber, 30% of modified flax fiber and 30% of modified Tencel fiber;

[0072] S2. Immerse the cashmere yarn in a softener solution, immerse and press, and then dry at 40° C. for 2 hours to obtain a breathable cashmere blended yarn.

[0073] Example 2

[0074] The breathable cashmere blended yarn of this embodiment is made from the following components: cashmere fiber treated with bio-enzyme, modified flax fiber, modified Tencel fiber and softener impregnation;

[0075] The bio-enzyme treated cashmere fiber is obtained by washing the cashmere fiber with a bio-enzyme cleaning solution;

[0076] The preparation steps of the bio-enzyme cleaning solution are as follows:

[0077] Step A: Weigh 10 g of sodium bis(2-ethylhexyl) sulfosuccinate, 10 g of cashmere detergent, 2 L of pure water, and 1 L of anhydrous ethanol, mix them, and stir at a speed of 500 r / min for 6 min to record them as the base liquid component;

[0078] Step B: add 0.2g lipase, 0.2g pectinase and 0.5g neutral protease to the base liquid component, and ultrasonically disperse at a power of 200W for 10 minutes to obtain the bio-enzyme cleaning solution.

[0079] The preparation method of cashmere fiber treated with biological enzymes is as follows:

[0080] Weigh 20g of cashmere fiber and immerse it in a 50℃ bio-enzyme cleaning solution for 60min. After soaking, heat it to 95℃ and inactivate the enzyme for 5min. After filtration, immerse it again in pure water and stir it at 200r / min for 5min. After filtration again, dry it at 45℃ for 6h. The result is bio-enzyme treated cashmere fiber.

[0081] The modified flax fiber is prepared by modifying flax fiber with silica aerogel. The specific preparation steps are as follows:

[0082] Step 1: Weigh 10 g of ethyl orthosilicate, 12 g of anhydrous ethanol, 15 g of pure water, and 4 g of hydrochloric acid, mix them, stir them at 400 r / min for 6 min, then add 3 g of ammonia water dropwise and catalyze the reaction for 10 min. The result is recorded as a sol precursor;

[0083] Step 2: Add flax fiber into the sol precursor at a weight ratio of 1:5, stir at a speed of 200 r / min for 5 minutes, pour into a beaker and let stand for 48 hours for aging. The result is recorded as the gel component;

[0084] Step 3: Rinse the gel component with anhydrous ethanol to remove impurities on the surface of the flax fiber, then rinse with pure water twice, and dry at 40° C. for 10 hours to obtain the modified flax fiber.

[0085] The modified Tencel fiber is prepared by modifying Tencel fiber by graphene oxide adsorption. The specific preparation steps are as follows:

[0086] Step i, immersing the Tencel fiber in a 0.5% by mass sodium hydroxide solution at a bath ratio of 1:30, stirring at a speed of 200 r / min for 1 hour, rinsing with pure water three times, and drying at a temperature of 45° C. to constant weight, the obtained Tencel fiber is recorded as the pre-treated Tencel fiber;

[0087] Step ii, pouring graphene oxide into pure water and ultrasonically dispersing it at a power of 300 W for 10 minutes to prepare a dispersion with a mass fraction of 0.5%, immersing the pretreated Tencel fiber in the dispersion at a bath ratio of 1:20, and ultrasonically dispersing it at a power of 200 W for 30 minutes, then filtering out the filtrate and rinsing it with pure water 5 times, then placing it at a power of 300 W for microwave modification for 3 minutes, and finally drying it at a temperature of 45°C to constant weight, to obtain the modified Tencel fiber.

[0088] The preparation method of the softener immersion liquid is as follows:

[0089] Weigh 30g of silicone softener and disperse it in 1L of pure water. Stir at 600r / min for 30min to obtain the softener immersion solution.

[0090] The preparation method of breathable cashmere blended yarn is as follows:

[0091] S1. Cashmere yarn is prepared by blending 40% of bio-enzyme treated cashmere fiber, 30% of modified flax fiber and 30% of modified Tencel fiber;

[0092] S2. Immerse the cashmere yarn in a softener solution, immerse and press, and then dry at 42° C. for 3 hours to obtain a breathable cashmere blended yarn.

[0093] Example 3

[0094] The breathable cashmere blended yarn of this embodiment is made from the following components: cashmere fiber treated with bio-enzyme, modified flax fiber, modified Tencel fiber and softener impregnation;

[0095] The bio-enzyme treated cashmere fiber is obtained by washing the cashmere fiber with a bio-enzyme cleaning solution;

[0096] The preparation steps of the bio-enzyme cleaning solution are as follows:

[0097] Step A: Weigh 9 g of sodium bis(2-ethylhexyl) sulfosuccinate, 10 g of cashmere detergent, 2 L of pure water, and 1 L of anhydrous ethanol, mix them, and stir at a speed of 400 r / min for 6 min to record them as the base liquid component;

[0098] Step B: add 0.2g lipase, 0.1g pectinase and 0.5g neutral protease to the base liquid component, and ultrasonically disperse at a power of 200W for 10 minutes to obtain the bio-enzyme cleaning solution.

[0099] The preparation method of cashmere fiber treated with biological enzymes is as follows:

[0100] Weigh 20g of cashmere fiber and immerse it in a 50℃ bio-enzyme cleaning solution for 55min. After soaking, heat it to 95℃ and inactivate the enzyme for 5min. After filtering, immerse it again in pure water and stir it at 200r / min for 5min. After filtering again, dry it at 45℃ for 6h. The result is bio-enzyme treated cashmere fiber.

[0101] The modified flax fiber is prepared by modifying flax fiber with silica aerogel. The specific preparation steps are as follows:

[0102] Step 1: Weigh 10 g of ethyl orthosilicate, 11 g of anhydrous ethanol, 13 g of pure water, and 4 g of hydrochloric acid, mix them, stir them at 400 r / min for 5 min, then add 3 g of ammonia water dropwise and catalyze the reaction for 10 min. The result is recorded as a sol precursor;

[0103] Step 2: Add flax fiber into the sol precursor at a weight ratio of 1:5, stir at a speed of 200 r / min for 5 minutes, pour into a beaker and let stand for 48 hours for aging. The result is recorded as the gel component;

[0104] Step 3: Rinse the gel component with anhydrous ethanol to remove impurities on the surface of the flax fiber, then rinse with pure water twice, and dry at 40° C. for 9 hours to obtain the modified flax fiber.

[0105] The modified Tencel fiber is prepared by modifying Tencel fiber by graphene oxide adsorption. The specific preparation steps are as follows:

[0106] Step i, immersing the Tencel fiber in a 0.5% by mass sodium hydroxide solution at a bath ratio of 1:30, stirring at a speed of 200 r / min for 1 hour, rinsing with pure water three times, and drying at a temperature of 45° C. to constant weight, the obtained Tencel fiber is recorded as the pre-treated Tencel fiber;

[0107] Step ii, pouring graphene oxide into pure water and ultrasonically dispersing it at a power of 300 W for 10 minutes to prepare a dispersion with a mass fraction of 0.5%, immersing the pretreated Tencel fiber in the dispersion at a bath ratio of 1:20, and ultrasonically dispersing it at a power of 200 W for 30 minutes, then filtering out the filtrate and rinsing it with pure water 4 times, then placing it at a power of 300 W for microwave modification for 3 minutes, and finally drying it at a temperature of 45°C to constant weight, to obtain the modified Tencel fiber.

[0108] The preparation method of the softener immersion liquid is as follows:

[0109] Weigh 25g of silicone softener and disperse it in 1L of pure water. Stir at 600r / min for 30min to obtain the softener immersion solution.

[0110] The preparation method of breathable cashmere blended yarn is as follows:

[0111] S1. Cashmere yarn is prepared by blending 40% of bio-enzyme treated cashmere fiber, 30% of modified flax fiber and 30% of modified Tencel fiber;

[0112] S2. Immerse the cashmere yarn in a softener solution, immerse and press, and then dry at 41° C. for 3 hours to obtain a breathable cashmere blended yarn.

[0113] Comparative Example 1

[0114] The breathable cashmere blended yarn provided in this comparative example is substantially the same as that in Example 1, the main difference being that in this comparative example 1, the cashmere fiber treated with the bio-enzyme in Example 1 is replaced with cashmere fiber that has not been treated with the bio-enzyme.

[0115] Comparative Example 2

[0116] The breathable cashmere blended yarn provided in this comparative example is substantially the same as that in Example 1, with the main difference being that the modified flax fiber in Example 1 is replaced with unmodified flax fiber in this comparative example 2.

[0117] Comparative Example 3

[0118] The breathable cashmere blended yarn provided in this comparative example is substantially the same as that in Example 1, with the main difference being that the modified Tencel fiber in Example 1 is replaced with unmodified Tencel fiber in this comparative example 3.

[0119] Performance Testing

[0120] The breathable cashmere blended yarns prepared in Examples 1-3 and Comparative Examples 1-3 were labeled as Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3, respectively. The air permeability of Examples 1-3 and Comparative Examples 1-3 was tested. A number of experienced fabric evaluation professionals conducted a comprehensive evaluation of Examples 1-3 and Comparative Examples 1-3 in terms of air permeability. The air permeability was rated on a scale of 1-10 from poor to excellent, and the resulting scores are recorded in the following table.

[0121] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 score 10 points 10 points 10 points 9 points 6 points 7 points

[0122] It can be seen from the data in the above table that the evaluation of the breathable cashmere blended yarn prepared in Examples 1-3 is significantly better than that of Comparative Examples 1-3, indicating that the preparation process of breathable cashmere blended yarn using bio-enzyme-treated cashmere fiber, modified flax fiber and modified Tencel fiber as raw materials can improve the air permeability of the yarn.

[0123] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0124] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A breathable cashmere blended yarn, characterized in that: The breathable cashmere blended yarn is prepared from the following components: cashmere fiber treated with biological enzymes, modified flax fiber, modified Tencel fiber and softener impregnation; The bio-enzyme treated cashmere fiber is prepared by washing the cashmere fiber with a bio-enzyme cleaning solution; The modified flax fiber is prepared by modifying flax fiber with silica aerogel; The modified Tencel fiber is prepared by modifying Tencel fiber through adsorption of graphene oxide.

2. The breathable cashmere blended yarn according to claim 1, characterized in that: The preparation steps of the biological enzyme cleaning solution are: Step A: Weigh 8-10 g of sodium bis(2-ethylhexyl) sulfosuccinate, 9-10 g of cashmere detergent, 2 L of pure water, and 1 L of anhydrous ethanol, mix them, and evenly disperse them to form the base liquid component. Step B: adding 0.1-0.2g lipase, 0.1-0.2g pectinase and 0.4-0.5g neutral protease to the base liquid component, and performing ultrasonic dispersion treatment to obtain the bio-enzyme cleaning solution.

3. The breathable cashmere blended yarn according to claim 2, characterized in that: The method for uniform dispersion in step A is stirring at a speed of 300-500 r / min for 5-6 minutes, and the method for ultrasonic dispersion treatment in step B is ultrasonic dispersion at a power of 200 w for 10 minutes.

4. The breathable cashmere blended yarn according to claim 1, characterized in that: The preparation method of the biological enzyme-treated cashmere fiber is as follows: Weigh 20g of cashmere fiber and immerse it in a 50℃ bio-enzyme cleaning solution for 50-60min. After soaking, heat it to 95℃ to inactivate the enzyme for 5min. After filtering, immerse it again in pure water and stir it at 100-200r / min for 5min. After filtering again, dry it at 45℃ for 5-6h. The result is bio-enzyme treated cashmere fiber.

5. The breathable cashmere blended yarn according to claim 1, characterized in that: The preparation steps of the modified flax fiber are as follows: Step 1: Weigh 10g of ethyl orthosilicate, 10-12g of anhydrous ethanol, 10-15g of pure water and 3-4g of hydrochloric acid, mix them, stir them evenly, then add 3g of ammonia water dropwise and catalyze the reaction for 10 minutes. The result is recorded as a sol precursor; Step 2: Add flax fiber to the sol precursor at a weight ratio of 1:5, mix and disperse, pour into a beaker and let stand for 48 hours for aging, and the result is recorded as the gel component; Step 3: Rinse the gel component with anhydrous ethanol to remove impurities on the surface of the flax fiber, then rinse twice with pure water, and dry to obtain the modified flax fiber.

6. The breathable cashmere blended yarn according to claim 5, characterized in that: The method for uniform stirring in step 1 is stirring at a speed of 300-400 r / min for 5-6 minutes, the method for mixing and dispersing in step 2 is stirring at a speed of 100-200 r / min for 5 minutes, and the method for drying in step 3 is drying at a temperature of 40° C. for 8-10 hours.

7. The breathable cashmere blended yarn according to claim 1, characterized in that: The preparation steps of the modified Tencel fiber are: Step i, immersing the Tencel fiber in an alkaline solution at a bath ratio of 1:30, stirring, rinsing with pure water three times, and drying at a temperature of 45° C. to constant weight, the obtained Tencel fiber is recorded as the pre-treated Tencel fiber; Step ii, pouring graphene oxide into pure water and dispersing it evenly to prepare a dispersion with a mass fraction of 0.5%, immersing the pretreated Tencel fiber in the dispersion at a bath ratio of 1:20, filtering out the filtrate after ultrasonic treatment and rinsing with pure water 3-5 times, then placing it in a microwave modification at a power of 300 W for 3 minutes, and finally drying it at a temperature of 45°C to constant weight to obtain the modified Tencel fiber.

8. The breathable cashmere blended yarn according to claim 7, characterized in that: The alkaline solution in step i is a sodium hydroxide solution with a mass fraction of 0.5%. The stirring method in step i is stirring at a speed of 100-200 r / min for 1 hour. The uniform dispersion method in step ii is ultrasonic dispersion at a power of 300 W for 10 minutes. The ultrasonic treatment method in step ii is ultrasonic dispersion at a power of 200 W for 30 minutes.

9. The breathable cashmere blended yarn according to claim 1, characterized in that: The preparation method of the softener immersion liquid is as follows: Weigh 20-30g of silicone softener and disperse it in 1L of pure water. Stir at 500-600r / min for 30min to obtain the softener immersion solution.

10. The breathable cashmere blended yarn according to claim 9, characterized in that: The preparation method of the breathable cashmere blended yarn is as follows: S1, cashmere yarn is prepared by blending 40% of bio-enzyme treated cashmere fiber, 30% of modified flax fiber and 30% of modified Tencel fiber; S2. Immerse the cashmere yarn in a softener solution, immerse and press the yarn, and then dry the yarn at a temperature of 40-42° C. for 2-3 hours to obtain a breathable cashmere blended yarn.