Preparation method of wool alginate fiber heating fabric

Abstract

The invention discloses a preparation method of a wool alginate fiber heating fabric, and belongs to the technical field of textiles. The method specifically comprises the following steps: S1, preparing wool yarns: preparing the wool yarns by using 66S Australian wool and 2D polyester as raw materials; s2, utilizing a carbonization technology to carbonize seaweed into active porous seaweed carbon, then utilizing an ultrasonic technology to uniformly embed the active porous seaweed carbon into a cotton cavity, and finally utilizing a biomacromolecule modification technology to perform spinning treatment to obtain thermal energy cotton single yarn; processing the thermal-energy cotton single yarn to obtain thermal-energy cotton yarn; s3, wool yarn and thermal cotton yarn are used as raw materials, and the wool alginate fiber heating fabric is obtained through weaving and after-finishing processes. The wool, the polyester and the alginate fiber yarn treated through a special technology are combined, especially the alginate fiber yarn is endowed with a far infrared heating function through a unique technology, the material limitation of a traditional fabric is broken through, and the warming function is upgraded.

Description

Technical Field

[0001] This invention belongs to the field of textile technology and relates to a method for preparing combed blended fabric, specifically a method for preparing a wool-seaweed fiber heat-generating fabric. Background Technology

[0002] As living standards improve, people's demands for clothing fabrics are no longer limited to basic functions such as covering the body and keeping warm. Instead, they have higher requirements for functionality, comfort, and aesthetics. Especially in cold environments, there is an urgent market demand for clothing fabrics that combine multiple excellent properties such as heat generation, insulation, and comfort.

[0003] Currently, traditional autumn and winter clothing fabrics mostly focus on achieving warmth through layering materials, resulting in relatively limited functionality and failing to meet consumers' demands for comprehensive performance. Although some companies and research institutions have dedicated themselves to developing functional fabrics, such as those using far-infrared heating materials, practical applications often suffer from issues like stiff fabric feel, poor breathability, or poor functional durability. In particular, current technology remains insufficient in the development of composites between natural high-quality fibers and functional fibers.

[0004] While existing technologies have explored combining wool with heat-generating fibers, such as through simple blends, the challenge remains to find a way to significantly enhance the active heating capacity, moisture absorption, and antibacterial properties of the fabric while maintaining the inherent high-end feel and appearance of wool, and to ensure synergistic effects among these functions. This is a technical challenge that continues to be explored and urgently needs to be addressed by those skilled in the art. Therefore, the market urgently needs a new type of fabric that combines a soft feel, novel patterns, and far-infrared heating capabilities, making it suitable for producing high-end autumn and winter fashion. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a method for preparing a wool-seaweed fiber heat-generating fabric.

[0006] The main research and development contents are as follows: (1) Product design and specification determination: Based on people's needs for functionality, comfort and aesthetics of autumn and winter clothing, wool seaweed fiber heat-generating fabric is designed. The outer layer is made of 60 / 2 (metric count) 66S Australian wool and 2D polyester blend, and the inner layer is made of 30S / 2 seaweed fiber yarn (100% cotton). The double-layer twill weave is adopted, and the twist, density, weight, width and other parameters are precisely set to achieve the warmth, aesthetics and functionality of the fabric. (2) Process flow development: A complete process flow was developed, with two parallel production lines for wool yarn and thermal cotton yarn. The 60 / 2 wool yarn process includes multiple processes such as dyeing, rewashing, and combing; the 30S / 2 thermal cotton process includes processes such as warping, doubling, and winding; weaving and finishing include many links such as warping, weaving, greige fabric inspection, raw finishing, and brushing. Each process works closely together to ensure product quality. (3) Development of key processes: Dyeing process: 60 / 2 wool-polyester yarn strip dyeing, wool is dyed with reactive dye at 98℃ for 70 minutes, polyester is dyed with disperse dye at 130℃ for 60 minutes; 30S / 2 heat-generating cotton yarn package dyeing, the tightness of the package is adjusted before dyeing, and Rema dye is used at 60℃ to ensure uniform dyeing. Thermal cotton yarn production: Using seaweed carbonization, ultrasonic embedding and biomacromolecule technology, active porous seaweed carbon after deep-sea algae carbonization is embedded into the cavities of cotton to produce thermal cotton yarn that generates heat from far-infrared radiation. Weaving process: To address the challenges of double-layer weaving, the warping tension of the thermal cotton yarn is adjusted, and the height of the heddle frames and the movement of the heddle frames are optimized to reduce skipped patterns and broken ends. Post-finishing process: Pilling index is ensured by adjusting the washing and singeing time and intensity, production management is strengthened and wet finishing process is adjusted to prevent creases.

[0007] The specific preparation method is as follows: S1 Preparation of wool yarn: After dyeing, rewashing, recombing, pre-spinning, fine spinning, self-winding, double twisting and steaming, wool yarn is obtained. The raw materials used in the wool yarn are 66S Australian wool and 2D polyester. The dyeing operation includes dyeing 66S Australian wool and dyeing 2D polyester. S2 Preparation of Thermal Cotton Yarn: S2.1 Functionalization: Carbonization technology is used to carbonize seaweed into active porous seaweed carbon, and then ultrasonic technology is used to uniformly embed the active porous seaweed carbon into the cotton cavity. Finally, the spinning process is carried out using biomacromolecule modification technology to obtain thermal cotton single yarn. S2.2 Processing: The thermal cotton single yarn is processed through spinning, doubling, doubling and then rewinding, yarn dyeing and yarn dyeing and then rewinding to obtain thermal cotton yarn; S3 Weaving and Finishing: The process involves warping, weaving, defective fabric inspection, raw repair, first brushing, setting, singeing, first lining boiling, washing, separating, second lining boiling, first drying, intermediate inspection, first finishing, second brushing, shearing, padding and drying, continuous steaming, second finishing, third brushing, second drying, and steaming to obtain a wool seaweed fiber heat-generating fabric. In the weaving process, a double-layer structure is used, with a wool yarn outer layer and a heat-generating cotton yarn inner layer. During preparation, the materials used are in the following weight ratio: heat-generating cotton yarn: 66S Australian wool: 2D polyester = 35-55: 22-32: 23-33.

[0008] Preferably, in the dyeing of 66S Australian wool, reactive Unazo dyes are used, and the dyeing temperature during the main dyeing stage is 98℃; in the dyeing of 2D polyester, disperse dyes are used, specifically domestically produced Longsheng environmentally friendly disperse dyes, and the dyeing temperature during the main dyeing stage is 130℃. Preferably, the materials used in the dyeing of 66S Australian wool also include FFA-01, Korlin B, HAC, soda ash, detergent 209 and formic acid.

[0009] Preferably, in 2D polyester dyeing, the materials used also include dispersant WS, HAC, caustic soda and sodium hydrosulfite.

[0010] Preferably, in the yarn dyeing step S2.2, a package yarn dyeing method is adopted. In the package yarn dyeing method, before dyeing, the packages are reversed to ensure that the winding size and the tightness of the inner and outer layers of all packages are consistent. When dyeing begins, short fibers are wound onto a bobbin with holes, and the bobbin with the yarn is placed on the dyeing nozzle of the package dyeing machine. The machine is then placed inside, and the circulation pump is started to allow the dye liquor to circulate and penetrate between the package yarns. The yarn is dyed using Remazin dye at a temperature of 60°C.

[0011] Preferably, in the dyeing of packaged yarn, the materials used also include sodium sulfate, soda ash, detergent 209 and HAC.

[0012] Preferably, considering the properties of heat-generating fibers, such as moisture absorption, breathability, anti-corrosion and antibacterial properties, and low static electricity, this product uses a double-layer structure, with the outer layer made of wool yarn and the inner layer made of heat-generating cotton yarn. The selection of this type of structure, due to its relatively high density and many heddle frames, has caused certain difficulties in weaving. Therefore, the weaving process has been adjusted as follows based on comparison: (1) The heat-generating cotton yarn has low strength and relatively poor elongation. The tension of the heat-generating cotton yarn is adjusted during warping. Generally, the tension of wool yarn is 25CN, while that of heat-generating cotton yarn is 20CN.

[0013] The double-layer structure has a high density. To reduce skipped stitches and yarn breaks, the height of the heald frames was adjusted during loom setup. Considering that the outer layer is wool yarn and the inner layer is thermal cotton yarn, the heald frame height for the thermal cotton yarn was increased based on the number of weave points. Furthermore, the heald frame travel was appropriately increased from ±2 to ±3, resulting in clearer openings and reduced yarn breaks.

[0014] Preferably, the fabric of this invention is an autumn / winter women's wear fabric with a relatively loose weave structure. Furthermore, due to the short length of the thermal cotton yarn fibers, it has a certain impact on pilling. Therefore, corresponding process adjustments were made during finishing: In step S3, to ensure the pilling physical indicators, we conducted comparative tests during washing and singeing: The first time, the washing time was reduced by 30 minutes (generally, washing time is 1-2 hours), and singeing was performed once with a 14mbar flame intensity. However, the test result was not ideal, only level 2.5. The second time, the washing time was adjusted to 40 minutes, and singeing was performed twice with a 14mbar flame intensity, resulting in a pilling level of 4.

[0015] To prevent creases, the fabric is rolled up once after the wet finishing process to make the fabric surface smooth.

[0016] Preferably, the double-layer structure is a two-upper-two-lower double-layer twill structure.

[0017] Preferably, the yarn is 60 / 2 yarn, and the 60 / 2 yarn is configured as follows: the single yarn twist is 680 twists / meter, and the twist direction is Z twist; the ply yarn twist is 760 twists / meter, and the twist direction is S twist. The thermal cotton yarn is specifically 30S / 2 thermal cotton yarn, and the 30S / 2 thermal cotton yarn is configured as follows: the single yarn twist is 680 twists / meter, and the twist direction is Z twist; the ply yarn twist is 560 twists / meter, and the twist direction is S twist.

[0018] The beneficial effects of this invention are as follows: 1. The fabric uses 66S Australian wool and 2D polyester blended yarn as the outer layer yarn and thermal cotton yarn as the inner layer yarn, employing a double-layer weave. Wool and polyester are combined with seaweed fiber yarn treated with special technology. In particular, the seaweed fiber yarn is endowed with far-infrared heating function through unique technology, breaking the material limitations of traditional fabrics and achieving an upgrade in warmth retention. 2. Combined with special finishing processes, the fabric exhibits excellent far-infrared properties, with a far-infrared emissivity of 0.92 and a far-infrared radiation temperature rise of 2.1. An innovative thermal cotton yarn production process integrates multiple cutting-edge technologies to prepare fibers with far-infrared heating effects; a dedicated process optimization solution was developed to address the challenges of double-layer weaving and finishing, ensuring product quality and performance.

[0019] 3. It adopts a double-layer twill weave, with the outer layer of wool yarn interwoven with the inner layer of thermal cotton yarn. Combining the different fiber characteristics, it enhances the fabric's warmth, moisture absorption and breathability. Attached Figure Description

[0020] Figure 1 This is a graph showing the wool dyeing process of the present invention.

[0021] Figure 2 This is a graph showing the polyester dyeing process of the present invention.

[0022] Figure 3 This is a process curve diagram of the thermal cotton dyeing process of the present invention. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] A method for preparing a wool-seaweed fiber heat-generating fabric includes the following steps: S1 Preparing wool yarn: After dyeing, rewashing, recombing, pre-spinning, fine spinning, self-winding, double twisting, and steaming, wool yarn is obtained. The raw materials used in the wool yarn are 66S Australian wool and 2D polyester. The dyeing operation includes dyeing 66S Australian wool and 2D polyester. The weight ratio of 66S Australian wool to 2D polyester is 1:1. Key Process Development: 1. Dyeing Process Development: For 60 / 2 wool-polyester yarn top dyeing, to ensure uniform dyeing and quality: wool uses reactive Unazo dyes and is dyed at 98 degrees Celsius for 70 minutes. Polyester uses domestically produced Longsheng environmentally friendly disperse dyes and is dyed at 130 degrees Celsius for 60 minutes. For 30S / 2 heat-generating cotton yarn, cone dyeing is used. A drawback of cone dyeing is the tendency for uneven color distribution. Therefore, we took preventative measures before dyeing by first winding the yarn onto the dyeing cones to ensure uniform tension inside and out. Dyeing then begins by winding short fibers onto a perforated cone, which is then placed on the dyeing feeder of the dyeing machine and placed inside the cone dyeing machine. A pump circulates the dye solution between the yarn cones, and Remazin dye is used at 60 degrees Celsius to dye the yarn. The specific dyeing process curve is shown below. Figure 1 and Figure 2 As shown, the materials used in 66S Australian wool dyeing also include FFA-01, Uniquerin B, HAC, soda ash, detergent 209 and formic acid, Uniquerin B, abbreviated as B. In 2D polyester dyeing, the materials used also include dispersant WS, HAC, caustic soda and sodium hydrosulfite.

[0025] S2 Preparation of Thermal Energy Cotton Yarn: The production principle of thermal energy cotton yarn is based on seaweed carbonization technology + ultrasonic embedding technology + biomacromolecule technology. The specific method is as follows: S2.1 Functionalization: Seaweed is carbonized into active porous seaweed carbon using carbonization technology. Then, ultrasonic technology is used to uniformly embed the active porous seaweed carbon into the cavities of cotton. Finally, biomacromolecule modification technology is used for spinning treatment to obtain thermal energy cotton single yarn. S2.2 Processing: The thermal cotton single yarn is processed through spinning, doubling, doubling and then rewinding, yarn dyeing and yarn dyeing and then rewinding to obtain thermal cotton yarn; the thermal cotton dyeing process curve is shown in Figure 3.

[0026] S3 Weaving and Finishing: The process involves warping, weaving, defective fabric inspection, raw repair, first brushing, setting, singeing, first lining boiling, washing, separating, second lining boiling, first drying, intermediate inspection, first finishing, second brushing, shearing, padding and drying, continuous steaming, second finishing, third brushing, second drying and steaming to obtain wool seaweed fiber heat-generating fabric. In the weaving process, a double-layer structure is adopted, with the outer layer being wool yarn and the inner layer being heat-generating cotton yarn.

[0027] Selection of organizational structure and development of weaving process: Combining the characteristics of heat-generating fibers, such as moisture absorption, breathability, anti-corrosion and antibacterial properties and low static electricity, this product adopts a double-layer structure. The outer layer is made of wool yarn and the inner layer is made of heat-generating cotton yarn. The selection of this type of structure has certain difficulties in weaving due to its relatively high density and many heddle frames. Therefore, the weaving process was adjusted as follows based on comparison: (1) The heat-generating cotton yarn has low strength and relatively poor elongation. The tension of the heat-generating cotton yarn was adjusted during warping. Generally, the tension of wool yarn is 25CN, while that of heat-generating cotton yarn is 20CN. (2) The double-layer structure has a high density. In order to reduce skipping and breakage, the height of the heddle frames was adjusted when the loom was started. Considering that the outer layer is wool yarn and the inner layer is heat-generating cotton yarn, the height of the heddle frames used for heat-generating cotton yarn was increased in combination with the number of weaving points. In addition, the heddle frame stroke was appropriately increased from ±2 to ±3 to make the opening clear and reduce breakage.

[0028] Post-finishing process development: This product is an autumn and winter women's clothing fabric with a relatively loose structure. Due to the short length of the thermal cotton yarn fibers, it has a certain impact on the pilling of the fabric. Therefore, corresponding process adjustments were made during post-finishing: (1) Ensure the physical indicators of pilling: We conducted comparative tests during washing and singeing: The first time, the washing time was reduced by 30 minutes (the general washing time is 1-2 hours), and the singeing was done once with a flame intensity of 14mbar. However, the test results were not ideal, with only level 2.5. The second time, the washing time was adjusted to 40 minutes, and the singeing was done twice with a flame intensity of 14mbar. The pilling was measured to be level 4.

[0029] (2) To prevent creases, strengthen operation and management during production, and roll the fabric once after the wet finishing process is completed to make the fabric surface flat.

[0030] The specific product design specifications are shown in Table 1:

[0031] Table 1 The main technical performance indicators of the product are shown in Table 2: ;

[0032] Table 2 The innovative features of this product are as follows: Innovation 1: The fabric uses a wool and polyester blended yarn as the outer layer and thermal cotton yarn as the inner layer, employing a double-layer weave. It combines wool and polyester with seaweed fiber yarn treated with special technology. In particular, the seaweed fiber yarn is endowed with far-infrared heating function through a unique technology, breaking through the material limitations of traditional fabrics and achieving an upgrade in warmth retention.

[0033] Innovation Point Two: Combined with special finishing processes, the fabric exhibits excellent far-infrared properties, with a far-infrared emissivity of 0.92 and a far-infrared radiation temperature rise of 2.1. An innovative thermal energy cotton yarn production process integrates multiple cutting-edge technologies to prepare fibers with far-infrared heating effects; and a dedicated process optimization solution has been developed to address the challenges of double-layer weaving and finishing, ensuring product quality and performance.

[0034] Innovation Point Three: The fabric employs a 2 / 2-up, 2 / 3-down double-layer twill weave, with an outer layer of wool yarn interwoven with an inner layer of thermal cotton yarn. This combination of different fiber properties enhances the fabric's warmth, moisture absorption, and breathability. The 2 / 2-up, 2 / 3-down double-layer twill weave allows for precise setting of parameters such as twist, density, weight, and width to achieve a balance of warmth, aesthetics, and functionality.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or substitute them with similar methods, without departing from the spirit of the invention or exceeding its defined scope. Although the invention has been detailed and described in the accompanying drawings and foregoing description, such descriptions are considered illustrative or exemplary rather than restrictive. It should be understood that changes and modifications can be made by those skilled in the art within the scope of the following claims.

Claims

1. A method for preparing a wool-seaweed fiber heating fabric, characterized in that, Specifically, the following steps are included: S1: 66S Australian wool and 2D polyester are used as raw materials to prepare wool yarn. The wool yarn is a blended yarn and is used as warp yarn. S2: Carbonization technology is used to carbonize seaweed into active porous seaweed carbon. Then, ultrasonic technology is used to uniformly embed the active porous seaweed carbon into the cavities of cotton. Finally, bio-macromolecule modification technology is used for spinning to obtain thermal cotton single yarn. The thermal cotton single yarn is then subjected to spinning, doubling, doubling and then winding, yarn dyeing and then winding after dyeing to obtain thermal cotton yarn, which is used as weft yarn. S3: Using wool yarn and thermal cotton yarn as raw materials, wool seaweed fiber heating fabric is obtained through weaving and finishing processes. The wool seaweed fiber heating fabric has a double-layer structure, with wool yarn as the outer layer and thermal cotton yarn as the inner layer. In the preparation process, the materials used are in the following weight ratio: thermal cotton yarn: 66S Australian wool: 2D polyester is 35-55: 22-32: 23-33.

2. The method for preparing a wool-seaweed fiber heating fabric as described in claim 1, characterized in that, In step S1, the yarn preparation process includes dyeing, rewashing, recombing, pre-spinning, spinning, self-winding, double twisting, and steaming. The dyeing operation includes dyeing 66S Australian wool and dyeing 2D polyester. In dyeing 66S Australian wool, reactive Unazo wool dyes are used, and the dyeing temperature is 98°C in the main dyeing stage. In dyeing 2D polyester, disperse dyes are used, and the dyeing temperature is 130°C in the main dyeing stage.

3. The method for preparing a wool-seaweed fiber heating fabric as described in claim 2, characterized in that, The materials used in the dyeing of 66S Australian wool also include FFA-01, Uniquerin B, HAC, soda ash, detergent 209 and formic acid.

4. The method for preparing a wool-seaweed fiber heating fabric as described in claim 2, characterized in that, In 2D polyester dyeing, the materials used also include dispersant WS, HAC, caustic soda and sodium hydrosulfite.

5. The method for preparing a wool-seaweed fiber heating fabric as described in claim 1, characterized in that, In the yarn dyeing process of step S2, the package yarn dyeing method is adopted. In the package yarn dyeing method, before dyeing, the packages are reversed to ensure that the winding size and the tightness of the inner and outer layers of all packages are consistent. When dyeing begins, the short fibers are wound on the bobbins with holes, and the bobbins with the yarn are placed on the dyeing nozzle of the package dyeing machine. The machine is then placed inside, and the circulation pump is started to allow the dye liquor to circulate and penetrate between the package yarns. Yarn dyeing is achieved using Remazin dye at a temperature of 60°C.

6. The method for preparing a wool-seaweed fiber heating fabric as described in claim 5, characterized in that, Materials used in yarn dyeing also include sodium sulfate, soda ash, detergent 209, and HAC.

7. The method for preparing a wool-seaweed fiber heat-generating fabric as described in claim 1, characterized in that, In step S3, the weaving and finishing processes include warping, weaving, defective fabric inspection, raw repair, first brushing, setting, singeing, first lining boiling, washing, separating, second lining boiling, first drying, intermediate inspection, first finishing, second brushing, shearing, rolling and drying, continuous steaming, second finishing, third brushing, second drying and steaming.

8. The method for preparing a wool-seaweed fiber heating fabric as described in claim 7, characterized in that, In the singeing operation of step S3, the flame intensity of 14 mbar is used to singe twice.

9. The method for preparing a wool-seaweed fiber heating fabric as described in claim 1, characterized in that, The double-layer structure is specifically a two-upper-two-lower double-layer twill weave.

10. The method for preparing a wool-seaweed fiber heating fabric as described in claim 1, characterized in that, The wool yarn is specifically 60 / 2 metric count wool yarn, and the 60 / 2 metric count wool yarn is configured as follows: the single yarn twist direction is Z twist; the ply yarn twist direction is S twist; the thermal cotton yarn is specifically 30S / 2 thermal cotton yarn, and the 30S / 2 thermal cotton yarn is configured as follows: the single yarn twist direction is Z twist; the ply yarn twist direction is S twist.

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