Multi-material yarn, method of manufacturing the same, and fabric

Abstract

The present application relates to a kind of multi-material yarn and its manufacturing method and fabric, belong to textile technical field.It includes the following steps: respectively to cashmere and silk are low-temperature dyeing plasma treatment and and hair processing, then with cashmere and silk as raw material preparation blended yarn;Blended yarn and cool single yarn are spliced into roving yarn;The mass ratio of cashmere, silk and cool single yarn is (7~10) : (38~55) : (35~55);The cool single yarn is flax single yarn or and paper single yarn.In the production method, there is no need for overall dyeing, no need for complex blending, save the process of mixing strip, re-dyeing, multiple drawing, suitable for small batch yarn production, compared with traditional process shorten production time, while reducing energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, specifically relating to a multi-material yarn, its manufacturing method, and fabric. Background Technology

[0002] The information disclosed in this background section is intended only to enhance understanding of the overall background of the invention and is not necessarily to be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0003] In the wool textile industry, the production of multi-fiber, multi-color fancy yarns mainly relies on two traditional processes: spinning before dyeing and dyeing before spinning. Significant technical bottlenecks exist in the areas of small-batch, multi-variety, or personalized customization. Spinning before dyeing involves spinning loose fibers into yarn first, then dyeing the yarn or the fabric woven from it. However, due to the significant differences in dyeing properties between different fiber materials, problems such as uneven color distribution, color difference, and color fastness easily occur. After napping, the color gradation is chaotic, and small-batch dyeing and color matching costs are high, with long color change cycles, high residual dyeing rates, and large energy consumption and wastewater discharge. Dyeing before spinning involves dyeing loose fibers (or wool tops) separately, then mixing, combing, and spinning different colored fibers into yarn in proportion. However, due to the low precision of dyed fiber blending, color transitions are harsh, making it difficult to achieve precise color separation, gradation, and multi-color combinations. Furthermore, in the process of mixing multiple materials, the combination of multi-yarn counts and multi-color fibers requires repeated mixing and drawing, resulting in cumbersome procedures, low production efficiency, and high costs for small-batch production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a multi-material yarn, its manufacturing method, and fabric. Through processes such as split spinning and precise plying, it enables free combination and precise style reconstruction of multiple materials, yarn counts, and colors, thereby reducing the cost of small-batch production and improving production efficiency.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: In a first aspect, a method for preparing multi-material yarn includes the following steps: performing low-temperature dyeing plasma treatment and wool treatment on cashmere and silk respectively, and then preparing blended yarn using cashmere and silk as raw materials; and plying the blended yarn with cool-feeling single yarn to form roving. The mass ratio of cashmere, silk, and cool-feeling single yarn is (7~10):(38~55):(35~55); The cooling yarn is either linen yarn or washi paper yarn.

[0006] Secondly, the multi-material yarns prepared by the above-mentioned multi-material yarn preparation method.

[0007] Thirdly, a fabric is prepared from the aforementioned multi-material yarns.

[0008] The beneficial effects of this invention are as follows: This invention provides a method for producing multi-material yarns. First, cashmere and silk are subjected to low-temperature dyeing plasma treatment and then blended to increase the surface friction coefficient and cohesion, reduce static electricity, and control moisture regain. After blending, a blended yarn is prepared. Silk provides a high-end luster and color, while cashmere provides a soft and fluffy feel; the resulting blended yarn has a matte texture. This yarn is then used as a brushing yarn and plied with a cool-feeling single yarn that does not require dyeing. The cool-feeling single yarn provides crispness and a cooling sensation. By adjusting the dyeing ratio and specifications of cashmere and silk, adjusting the blending ratio of the blended yarn and the cool-feeling single yarn, and combining parameters such as twist during plying, the color and style of the resulting coarse yarn can be flexibly integrated, thus producing fabrics with different colors and styles. This solves the problems of high cost, low production efficiency, and limited style in small-batch color matching. Attached Figure Description

[0009] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0010] Figure 1 The image shows a physical picture of the fabric prepared in Example 1, where A is white fabric and B is medium heather fabric.

[0011] Figure 2 The image shows a physical picture of the fabric prepared in Example 2, where A is white fabric and B is medium heather fabric.

[0012] Figure 3 The image shows the actual fabric prepared in Example 3, where A is white fabric and B is medium heather fabric.

[0013] Figure 4 The image shows a physical picture of the fabric prepared in Example 4, where A is white fabric and B is medium heather fabric. Detailed Implementation

[0014] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] One or more embodiments of the present invention provide a method for preparing multi-material yarn, comprising the steps of: subjecting cashmere and silk to low-temperature dyeing plasma treatment and wool treatment respectively, and then preparing blended yarn using cashmere and silk as raw materials; and plying the blended yarn with cool-feeling single yarn to form roving. The mass ratio of cashmere, silk, and cool-feeling single yarn is (7~10):(38~55):(35~55); The cooling yarn is either linen yarn or washi paper yarn.

[0017] The above process employs a technical approach of separating and spinning single yarns by color and quality, followed by precise plying and blending of multiple yarn counts and colors. This overcomes the limitations of traditional dyeing and blending, eliminating the need for overall dyeing and complex blending, and removing processes such as sliver mixing, re-dyeing, and multiple drawing operations. It is suitable for small-batch yarn production, shortening production time and reducing energy consumption compared to traditional processes. The process is flexible, allowing for rapid adjustments to fabric color and style by modifying the specifications of the raw yarns.

[0018] Among them, the cool-feeling single yarn is made of washi yarn and linen yarn, mainly because both have natural fiber textures, a matte low-soft luster, a casual and natural surface texture, a dry and textured feel, and the characteristics of being both crisp and draping. They are highly compatible with the retro and original texture. The fiber structure is loose and has large pores, which has excellent moisture absorption and sweat wicking performance. It is not stuffy or sticky to the touch and feels cool to wear in summer. They have the common characteristics of being comfortable and breathable.

[0019] Optional, cashmere fineness is 15.5~24μm; silk includes one or more of spun silk and mulberry silk, linear density is 100~140D; linen single yarn specification is 28~48NM / 1; washi paper single yarn specification is 48~60NM / 1.

[0020] Optionally, the wool processing stage includes hydrophilic and antistatic modification treatment to improve the compatibility of mulberry silk and cashmere and reduce the yarn breakage rate. Specifically, this includes: mulberry silk is first opened separately on a wool-blending machine, then subjected to a layer-layout opening process, with 5-9 wt% antistatic agent applied and 9-12 wt% water added, operating at a frequency of 35-40 Hz, followed by curing in a sealed chamber for 20-22 hours; cashmere is opened and sprayed simultaneously, with 2-5 wt% antistatic agent and 0.5-0.9 wt% wool-blending oil added, and 9-12 wt% water added. The equipment operates at a frequency of 17-22 Hz, followed by a curing process of 20-22 hours. Mulberry silk, with its smooth surface, poor cohesion, and difficulty in dissipating static electricity, is opened using a two-step method with a higher dose of antistatic agent and at a higher frequency. This reinforcement treatment compensates for the cohesion and static electricity defects of its smooth filaments. Cashmere fibers, while short and low in strength, have a natural loft with good curl and cohesion. Therefore, a one-step opening method is used, reducing the frequency to minimize impact damage to the fibers. Blending oil is added to reduce friction and protect flexibility. Water is added and curing is performed to ensure moisture regain and even penetration of auxiliaries, allowing both fibers to reach their optimal spinnable state. This results in better compatibility during blending, reducing yarn breakage from the source and facilitating better blending with cool-feeling single yarns.

[0021] Optionally, the blended yarn specifications include 26~90NM, which can easily achieve a variety of fancy effects; specifically 48~90NM, which is a fine yarn, using semi-combed ring spinning, with evenness CV%≤12%, used for delicate surface and fine color presentation; or 26~36NM, which is a coarse single yarn, using fancy yarn / semi-worsted spinning, with high bulk and rich hairiness, used for skeleton support and rugged style presentation.

[0022] Optionally, in the plying and blending stage, the ratio of blended yarn raw material to cool-feeling single yarn raw material is (1~2):1; Clothes woven from linen or washi paper yarn have a rough and unruly feel. By plying and blending with silk / cashmere blended yarn, it not only gives the clothes woven from linen or washi paper yarn a smooth and supple feel that they do not have, but also retains the rough and unruly feel of linen or washi paper yarn, thus achieving a cool and smooth texture.

[0023] Optionally, during the plying and yarn blending stage, the twist is 190~550T / m; specifically, a twist of 190~300T / m achieves a low-twist, fluffy texture; or a twist of 300~550T / m achieves a high-twist, delicate texture.

[0024] Optionally, during the plying and yarn blending stage, when there are 3 yarns, the twist direction configuration is Z / S / Z, that is, 1 Z twist, 1 S twist, and 1 Z twist. The S twist is uniformly plyed, and the twist directions are alternated. The internal torsional stress cancels each other out, which cancels out the yarn's own springback torque, achieving the effect of structural stability, not easy to twist or shrink, and not easy to get tangled. Alternatively, the twist direction configuration is S / Z / S, that is, 1 S twist, 1 Z twist, and 1 S twist. Then, the Z twist is uniformly plyed. By reasonably adjusting, the internal stress of the yarn is reduced and the shrinkage rate is reduced. During the plying and yarn blending process, the tension control accuracy of the single yarn is ±0.5cN, and the tension difference is ≤1%, to avoid plying twisting and uneven yarn.

[0025] Optionally, in the plying and yarn splicing stage, the plying draft ratio is 1.0 to 1.5 times, that is, the length after drafting is 1.0 to 1.5 times that before drafting, in order to maintain the original characteristics of the single yarn and achieve structural complementarity.

[0026] Optionally, the process also includes the following steps: online color detection, electronic yarn clearing and winding; in the online color detection step, a high-speed camera is used to monitor the color uniformity of the ply in real time and control the color difference ΔE ≤ 1.0; the electronic yarn clearing and winding step can remove coarse and fine details, lint, and foreign fibers; ensuring that -30% fine details do not exceed 1 per km and +50% coarse details do not exceed 0.5 per km.

[0027] Optionally, the mass ratio of cashmere, silk, and linen yarn is 8:(44~46):(46~48), or the mass ratio of cashmere, silk, and washi paper yarn is (7~10):(38~55):(35~55); specifically including: the mass ratio of cashmere, silk, and linen yarn is 8:46:46; or, the mass ratio of cashmere, silk, and linen yarn is 8:44:48; or, the mass ratio of cashmere, silk, and washi paper yarn is 7:38:55; or, the mass ratio of cashmere, silk, and washi paper yarn is 10:55:35.

[0028] One or more embodiments of the present invention provide multi-material yarns prepared by the above-described method for preparing multi-material yarns.

[0029] The resulting multi-material yarn combines the softness of cashmere, the luster of silk, and the coolness of linen / washi paper. The yarn breaking strength is increased by 40%, the pilling grade is ≥4, the shedding rate is reduced by 50%, and the stability and durability of wearing the garment are significantly improved.

[0030] One or more embodiments of the present invention provide a fabric prepared from the above-mentioned multi-material yarns.

[0031] The present invention will be further described below with reference to specific embodiments.

[0032] Example 1 A multi-material yarn, with the following mass percentages of raw materials: 48% flax, 44% mulberry silk, and 8% cashmere, has a specification of 23NM / 1. The traditional dyeing-then-spinning process includes: fiber dyeing, color matching, wool blending, carding, drawing, roving, spinning, winding, and yarn formation. Multi-material blended yarns are difficult to comb and draft, resulting in uneven yarn, numerous fibers, and poor style consistency. Furthermore, due to the variety of materials and types, the pretreatment process using specialized equipment is cumbersome and cannot accommodate multiple materials and types, leading to high costs.

[0033] This embodiment provides a method for preparing multi-material yarn, the raw materials of which include cashmere, silk, and linen yarn in a mass ratio of 8:44:48. The average fineness of the cashmere is 20μm, the linear density of the silk is 120D, and the specification of the linen yarn is 48NM / 1.

[0034] The preparation process includes the following steps.

[0035] Cashmere, silk, and linen fibers are precisely sorted and graded according to material, fineness, length, and original color. A machine vision sorting system is used to remove impurities and foreign fibers to ensure the purity of the single yarn raw materials.

[0036] Low-temperature plasma dyeing treatment for cashmere and silk: First, pretreatment with detergent and penetrating defoamer thoroughly removes grease and impurities from the surface of animal fibers, facilitating dye penetration. Then, low-temperature reactive dyes or acid dyes (dyeing start temperature ≤40℃) are added to the main dyeing tank. Two acid additions combined with extended holding time ensure thorough bonding and reaction between the dye and animal fibers. Afterward, the main tank is closed, and a pneumatic pressurization device is activated to introduce compressed air into the main tank, raising the pressure to 0.5MPa. While maintaining this pressure, the temperature is increased to 90℃ at a rate of 1.0℃ / min and held for dyeing for 50 minutes. This pneumatic pressure enhances the diffusion rate of dye molecules within the fiber, achieving rapid dyeing. The moisture content after dyeing is controlled at 13.5%.

[0037] The treated silk and cashmere were subjected to hydrophilic and antistatic modification treatments respectively: the silk was first opened separately on a wool blending machine, and then treated with a layer-layout opening process, with 7wt% antistatic agent added and 11wt% water added, the equipment operating frequency was 38Hz, and then cured in a sealed chamber for 21 hours; the cashmere was opened and sprayed simultaneously, with 3.5wt% antistatic agent and 0.7wt% wool blending oil added, 11wt% water added, the equipment operating frequency was 19Hz, and then cured in a sealed chamber for 21 hours; after the treatment, the wool was fully opened and mixed on a wool blending machine to complete the wool blending treatment.

[0038] Using a combed ring spinning process, the yarn evenness CV% ≤ 12% is spun from cashmere and silk into a fine-count blended yarn with a specification of 90NM / 1, used for a delicate surface and exquisite color presentation.

[0039] A CNC plying and yarn-blending system is used to ply and blend one flax single yarn and two blended Z-twist single yarns to produce a thicker yarn. During the plying and yarn splicing process, the twist is 500T / m; the plying twist direction is S; the single yarn tension is controlled at 1 times, with a control accuracy of ±0.5cN and a tension difference ≤1%.

[0040] A multi-material yarn with a density of 23 NM / 1 was prepared.

[0041] Fabrics made from multi-material yarns, such as Figure 1 As shown, A is a white fabric obtained by combining one 48NM / 1 linen yarn and two 90NM / 1 pure white velvet yarns and twisting them into a thicker yarn during the dyeing process; B is a medium heather fabric obtained by combining one 48NM / 1 linen yarn and two 90NM / 1 medium heather velvet yarns and twisting them into a thicker yarn during the dyeing process. Because it uses natural linen yarn and velvet-colored blended yarn, it gives the garments made of pure linen a smooth and supple feel that they do not have, while retaining the rough and unyielding texture of linen yarn, thus achieving a balance between coolness and smoothness.

[0042] According to GB / T 35263-2017, its contact cooling sensation was tested, and the test result was: the contact cooling sensation coefficient Qmax was approximately 0.20 J / (cm²·s).

[0043] According to FZ / T 01171-2023, the three-point beam method was used to evaluate its smooth and glutinous feel. The test results were: fullness (mm) 0.65, firmness (cN) 12.6, roughness 1.2, and tightness (cN / mm) 3.6.

[0044] According to GB / T 18318.1-2022, the spatial stiffness test results evaluated using the cantilever method are as follows: bending stiffness, radial direction 28mN. cm.

[0045] According to GB / T4802.3~2008 standard, its anti-pilling, strength and shrinkage properties were tested. The test results are as follows: anti-pilling at 7200 revolutions for 2 hours, reaching level 4; breaking strength of 750cN, breaking strength of 18cN / tex; breaking elongation of 6%; using 200mm×200mm samples, with a mild silk and wool washing program, after washing, drying and constant temperature and humidity equilibration, the dimensions were remeasured, and the shrinkage rate was calculated to be -1.5% in the warp direction and -1.2% in the weft direction (negative values ​​represent shrinkage). All of the above are superior to similar linen-silk-cashmere blended yarns.

[0046] In the preparation process of this embodiment, the undyed linen yarn is of pure natural color and does not undergo dyeing, accounting for 48%, which saves at least 48% of energy consumption compared to traditional spinning.

[0047] Traditional spinning involves dyeing and blending fibers before spinning. In contrast, the preparation method provided in this embodiment involves preparing yarns separately and then combining and color-matching them. When spinning small batches for orders, it is not necessary to go through the entire process of spinning all fibers. Only the single yarn that reflects the color needs to be prepared. The single yarn that reflects the color is then combined with the single yarn that does not need to be dyed to adjust the color of the final product. Production can start from small batches (1kg), color matching costs are reduced by 60%, production efficiency is increased by 80%, processes are reduced by 40%, losses are reduced by 25%, water is saved by 60%, energy is saved by 35%, and pollution is reduced by 70%, which meets the green textile standards.

[0048] Example 2 This embodiment provides a method for preparing multi-material yarn, the raw materials of which include cashmere, mulberry silk and flax yarn in a mass ratio of 8:44:48. The average fineness of the cashmere is 20μm, the linear density of the mulberry silk is 120D, and the specification of the flax yarn is 28NM / 1.

[0049] The preparation process includes: Cashmere, silk, and flax fibers are precisely sorted and graded according to material, fineness, length, and original color. A machine vision sorting system is used to remove impurities and foreign fibers to ensure the purity of the single yarn raw materials.

[0050] Low-temperature plasma dyeing treatment for cashmere and silk: First, pretreatment with detergent and penetrating defoamer thoroughly removes grease and impurities from the surface of animal fibers, facilitating dye penetration. Then, low-temperature reactive dyes or acid dyes (dyeing start temperature ≤40℃) are added to the main dyeing tank. Two additions of acid, combined with extended holding time, ensure thorough bonding and reaction between the dye and animal fibers. After closing the main tank, a pneumatic pressurization device is activated, introducing compressed air into the main tank to raise the pressure to 0.5MPa. While maintaining this pressure, the temperature is increased to 90℃ at a rate of 1.0℃ / min and held for dyeing for 50 minutes. This pneumatic pressure enhances the diffusion rate of dye molecules within the fiber, achieving rapid dyeing. The moisture content after dyeing is controlled at 13.5%.

[0051] The treated cashmere and mulberry silk were subjected to hydrophilic and antistatic modification treatments respectively: the mulberry silk was first opened separately on a blending machine, and then treated with a layer-layout opening process, with 7wt% antistatic agent added and 11wt% water added, the equipment operating frequency was 38Hz, and then cured in a sealed chamber for 21 hours; the cashmere was opened and sprayed simultaneously, with 3.5wt% antistatic agent and 0.7wt% blending oil added, 11wt% water added, the equipment operating frequency was 19Hz, and then cured in a sealed chamber for 21 hours; after the treatment, the cashmere was fully opened and mixed on a blending machine to complete the blending treatment.

[0052] Employing fancy spinning technology, the yarn evenness CV% ≤ 12% is made by spinning cashmere and mulberry silk into a fine-count blended yarn with a specification of 48NM / 2. It has high bulk and rich hairiness, and is used for color support and to present a rugged style.

[0053] A CNC plying and yarn-blending system is used to ply and blend a single flax yarn (wet spinning method) and a Z-twist blended yarn to produce a thicker yarn. During the plying and yarn splicing process, the twist is 210T / m, the plying twist direction is S; the single yarn tension is controlled at 1, the control accuracy is ±0.5cN, the tension difference is ≤1%; the draft ratio is 1.

[0054] A multi-material yarn with a specification of 13NM / 1 was prepared.

[0055] Fabrics made from multi-material yarns, such as Figure 2 As shown, A is a white fabric prepared by combining and twisting one strand of linen (28NM / 1) and a blended yarn of 85% mulberry silk and 15% cashmere (48NM / 2) into a thicker yarn during the dyeing process. B is a medium heather gray fabric prepared by combining and twisting one strand of linen (28NM / 1) and a blended yarn of 85% mulberry silk and 15% cashmere (48NM / 2) into a thicker yarn during the dyeing process.

[0056] The measured contact cooling coefficient Qmax was approximately 0.19 J / (cm²·s), fullness (mm) 0.91, stiffness (cN) 18.3, roughness 1.4, and tightness (cN / mm) 4.1. The test results for spatial stiffness were: bending stiffness, radial direction 32 mN. cm.

[0057] According to GB / T4802.3~2008 standard, its anti-pilling performance was tested, and the results are as follows: anti-pilling at 7200 revolutions for 2 hours, reaching level 4; breaking strength is 950cN, breaking strength is 22cN / tex; breaking elongation is 5.6%; for a 200mm×200mm standard sample, a mild washing program for silk and wool was used. After washing, drying, and constant temperature equilibration, the dimensions were remeasured, and the warp and weft dimensional change rates were calculated as follows: warp -1.7%; weft -1.3%.

[0058] Example 3 This embodiment provides a method for preparing multi-material yarn, the raw materials of which include cashmere, mulberry silk and washi paper yarn in a mass ratio of 7:38:55. The average fineness of the cashmere is 20μm, the linear density of the mulberry silk is 120D, and the specification of the washi paper yarn is 60NM / 1.

[0059] The preparation process differs from that in Example 1 in that it is made by plying together one 60NM / 1 washi S-twist single yarn (specification 60NM / 1) and one 85% mulberry silk + 15% cashmere Z-twist colored yarn (velvet, specification 72NM / 1), with a twist of 320T / m, a ply twist direction of S, and a tension of 2 times that of velvet and 1 times that of washi.

[0060] A multi-material yarn with a density of 33 NM / 1 was prepared.

[0061] The obtained fabrics, such as Figure 3 As shown, A is a white fabric and B is a medium gray fabric.

[0062] The measured contact cooling coefficient Qmax is ≥ 0.18 J / (cm²) The test results for spatial stiffness are as follows: fullness (mm) 0.57, stiffness (cN) 8.4, roughness 0.85, tightness (cN / mm) 2.8; bending stiffness, radial direction 24 mN. cm.

[0063] According to GB / T4802.3~2008 standard, its anti-pilling, strength and shrinkage properties were tested. The test results are as follows: anti-pilling at 7200 revolutions for 2 hours, reaching level 4; breaking strength 325cN, breaking strength 10.8cN / tex, breaking elongation 3.5%; 200mm×200mm standard fabric sample, marked with dimensions, was subjected to a mild silk and wool washing program. After washing, drying and constant temperature and humidity equilibration, the shrinkage was retested, and the calculated shrinkage rate was -1.2% in the warp direction and -1.0% in the weft direction.

[0064] Example 4 This embodiment provides a method for preparing multi-material yarn, the raw materials of which include cashmere, mulberry silk and washi paper yarn in a mass ratio of 10:55:35. The average fineness of the cashmere is 20μm, the linear density of the mulberry silk is 120D, and the specification of the washi paper yarn is 48NM / 1.

[0065] The difference between the preparation process and Example 1 is that: the S-twist single yarn of washi paper (specification 48NM / 1) and the Z-twist blended colored yarn of 85% mulberry silk and 15% cashmere (specification 48NM / 2) are combined and twisted: twist 210T / m, twist direction Z, single yarn tension controlled at 1, control accuracy ±0.5cN, tension difference ≤1%; the draft ratio is 1.

[0066] A multi-material yarn of 16 NM / 1 was prepared, and fabrics made from it, such as... Figure 4 As shown, A is a white fabric and B is a medium gray fabric.

[0067] The measured contact cooling coefficient Qmax is approximately 0.18 J / (cm²·s), fullness (mm) 0.76, stiffness (cN) 11.7, roughness 1.06, and tightness (cN / mm) 3.5. The test results for spatial stiffness are: bending stiffness, radial direction 34 mN. cm. Breaking strength 780cN, breaking strength 17.8cN / tex, elongation at break 4.8%.

[0068] The reduction is as follows: -1.8% in the longitudinal direction; -1.5% in the latitudinal direction.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preparing multi-material yarn, characterized in that, The steps include: performing low-temperature dyeing plasma treatment and wool treatment on cashmere and silk respectively, then preparing blended yarn using cashmere and silk as raw materials; and plying the blended yarn with cool-feeling single yarn to form roving. The mass ratio of cashmere, silk and cool-feeling single yarn is (7~10):(38~55):(35~55); The cooling yarn is either linen yarn or washi paper yarn.

2. The method for preparing multi-material yarn as described in claim 1, characterized in that, Cashmere has a fineness of 15.5~24μm; silk includes one or more types of spun silk and mulberry silk, with a linear density of 100~140D; linen single yarn has a specification of 28~48NM / 1; washi paper single yarn has a specification of 48~60NM / 1.

3. The method for preparing multi-material yarn as described in claim 1, characterized in that, The wool processing stage involves hydrophilic and antistatic modification treatment; mulberry silk is first opened separately by a wool-blending machine, then processed by a layer-laying opening process, with 5-9 wt% antistatic agent applied, and 9-12 wt% water added. The equipment operates at a frequency of 35-40 Hz, followed by curing in a sealed chamber for 20-22 hours; cashmere is opened and sprayed simultaneously, with 2-5 wt% antistatic agent and 0.5-0.9 wt% wool blending oil added, and 9-12 wt% water added. The equipment operates at a frequency of 17-22 Hz, followed by curing in a sealed chamber for 20-22 hours.

4. The method for preparing multi-material yarn as described in claim 1, characterized in that, The specifications of blended yarns range from 26 to 90 NM.

5. The method for preparing multi-material yarn as described in claim 1, characterized in that, During the plying and blending stage, the ratio of blended yarn to flax single yarn or washi paper single yarn is (1~2):

1.

6. The method for preparing multi-material yarn as described in claim 1, characterized in that, During the plying and yarn blending stage, the twist is 190~550T / m.

7. The method for preparing multi-material yarn as described in claim 1, characterized in that, During the plying and yarn-making stage, the plying draft ratio is 1.0 to 1.

5.

8. The method for preparing multi-material yarn as described in claim 1, characterized in that, It also includes the following steps: online color detection, electronic yarn clearing, and winding.

9. A multi-material yarn prepared by the method for preparing multi-material yarn as described in any one of claims 1 to 8.

10. A fabric, characterized in that, It is prepared from the multi-material yarn as described in claim 9.

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