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CN-117569092-B - Natural regenerated composite functional fabric and preparation method thereof

CN117569092BCN 117569092 BCN117569092 BCN 117569092BCN-117569092-B

Abstract

The invention provides a natural regenerated composite functional fabric which is characterized by being formed by compounding viscose fibers, fibrilia and bamboo fibers and weaving by adopting weft double weave, wherein warp yarns are viscose/fibrilia/bamboo fiber blending, surface weft yarns and inner weft yarns are viscose fibers, and the composite functional fabric is formed by lignin/keratin composite modification. The natural regenerated composite functional fabric is formed by compounding viscose fibers, fibrilia and bamboo fibers and is woven by weft double weave, wherein warp yarns are viscose/fibrilia/bamboo fiber blending, surface weft yarns and inner weft yarns are viscose fibers, and the fabric can be used as an ultraviolet-resistant curtain fabric after finishing.

Inventors

  • REN WEIRONG
  • LU JIANHONG
  • YAO DONGPING
  • MA CHENBIN
  • XU HUI

Assignees

  • 吴江德伊时装面料有限公司

Dates

Publication Date
20260505
Application Date
20231113

Claims (6)

  1. 1. The natural regenerated composite functional fabric is characterized by being formed by compounding viscose fibers, fibrilia and bamboo fibers and weaving by adopting weft double structures, wherein warp yarns are viscose/fibrilia/bamboo fiber blending, surface weft yarns and inner weft yarns are viscose fibers, and the composite functional fabric is formed by compounding and modifying lignin/keratin; the preparation method of the natural regenerated composite functional fabric comprises the following steps: S1, mixing nitric acid and phosphoric acid according to a volume ratio of 2-3:l to obtain a mixed solution, adding the mixed solution into the composite functional fabric, adding sodium nitrite, oxidizing the fabric, finally immersing the fabric in glycerol solution for immersing, washing and drying to obtain carboxylated composite functional fabric; S2, adding the grease-removed wool into a mixed solution of sodium sulfide, urea and sodium dodecyl sulfate at a certain temperature, stirring until the wool is completely dissolved, and then dialyzing to obtain a wool keratin solution with the concentration of 0.2-1.2 wt%; s3, adding lignin modified magnetic particles into the wool keratin solution, and uniformly mixing and stirring to obtain wool keratin finishing liquid; s4, soaking the carboxylated composite functional fabric in wool keratin finishing liquid, continuously stirring at a certain temperature for reaction, drying in a vacuum oven after twice soaking and twice rolling, putting the wool keratin finishing liquid in methanol solution for treatment after the wool keratin finishing liquid forms a film on a fabric, and then fully washing and drying with water to obtain the natural regenerated composite functional fabric; The preparation method of the lignin modified magnetic particles comprises the following steps: S11, preparing an iron chloride solution with the concentration of 10-15wt%, then dropwise adding boiling water in a stirring state, wherein the volume ratio of the boiling water to the iron chloride solution is 4-5:1, then continuously boiling for 1-3min, and finally cooling to room temperature to obtain Fe (OH) 3 colloid; S12, adding pollen into an ethanol solution, cleaning to remove impurities to obtain pretreated pollen, adding the pretreated pollen into water, performing ultrasonic dispersion to obtain pollen dispersion liquid with the concentration of 0.5-2wt%, then dripping Fe (OH) 3 colloid prepared in the step S11, standing and layering after the dripping is finished, collecting precipitate, and calcining the precipitate in a nitrogen atmosphere to obtain magnetic bead powder; S13, dissolving lignin in the tetrahydrofuran solution, and uniformly stirring and mixing to obtain lignin solution with the concentration of 0.08-0.2 wt%; s14, adding the magnetic bead powder into water, uniformly dispersing by ultrasonic waves to obtain a magnetic bead dispersion liquid with the concentration of 1-3wt%, adding the lignin solution into the magnetic bead dispersion liquid according to the volume ratio of 1:1, stirring and mixing, and filtering to obtain lignin modified magnetic particles.
  2. 2. The natural regenerated composite functional fabric according to claim 1, wherein the oxidation treatment time in the step S1 is 25-50min, and the bath ratio of the composite functional fabric to the mixed solution is 1:20-30.
  3. 3. The natural regenerated composite functional fabric according to claim 1, wherein in the step S2, the mass ratio of sodium sulfide, urea and sodium dodecyl sulfate is 9:10:470, the temperature is 40-50 ℃, and the mass ratio of wool to mixed solution is 1.5-3:100.
  4. 4. The natural regenerated composite functional fabric according to claim 1, wherein the concentration of the lignin modified magnetic particles in the wool keratin solution in the step S3 is 1.5-2.4wt%.
  5. 5. The natural regenerated composite functional fabric according to claim 1, wherein the bath ratio of the carboxylated composite functional fabric in the step S4 in the wool keratin finishing liquid is 1:30-50, the temperature of the stirring reaction is 50-70 ℃ and the time is 2-3h.
  6. 6. The natural regenerated composite functional fabric according to claim 1, wherein the vacuum drying temperature in the step S4 is 60-70 ℃, the time is 2.5-4h, and the time of methanol solution treatment is 2-5min.

Description

Natural regenerated composite functional fabric and preparation method thereof Technical Field The invention relates to the field of regenerated functional fabrics, in particular to a natural regenerated composite functional fabric and a preparation method thereof. Background Cellulose fibers such as cotton and hemp are several fibers with large dosage in the world textile processing, the main components of the fiber varieties are cellulose components of polysaccharide, the cellulose components are easy to degrade in natural environment, and after the service period of the textile is finished, the cellulose fibers have small influence on environment, but cause huge waste. At present, due to the increasingly shortage of global petroleum resources, biodegradable textile fiber materials taking renewable resources as raw materials are becoming an important development direction of environment-friendly textiles in the future. In recent years, more than 2000 ten thousand tons of waste textiles are produced annually in China. The comprehensive utilization amount of the waste textiles in 2016 is about 360 ten thousand tons, the comprehensive utilization rate is about 18 percent, and the comprehensive utilization amount is used as one of the raw materials of the environment-friendly regenerated fibers and has a larger lifting space. The environment-friendly regenerated fiber is applied to europe at the earliest, and the development concept of the environment-friendly regenerated fiber is moved to the world along with the update of the production process. Further development and application is then performed by hundreds of enterprises. In 1999, china first constructed an environment-friendly regenerated fiber development project on the Shanghai, and was evaluated as a national demonstration project, and a small result was obtained. By 2000, the development scale of the environment-friendly regenerated fiber has been gradually increased. Until now, the production process of the environment-friendly regenerated fiber has been accepted by a plurality of countries, and the unique production process and fiber characteristics thereof are considered to have better development prospect and can be widely applied to various industrial fields. The environment-friendly regenerated fiber has become one of main chemical fiber products, and has huge development space in the next decades. The regenerated cellulose fiber in the regenerated fiber is regenerated fiber such as cotton, hemp and the like, cellulose components are extracted from bark and plants, and viscose fiber, cuprammonium fiber, bamboo pulp fiber and the like which are obtained through processing have excellent service performance, but also have the problems of poor dimensional stability of fabrics, poor crease resistance, unobvious functional characteristics for improving the application performance of the fabrics and the like, limit the application and popularization of the fiber in the field of medium and high-end textiles, restrict the development of regenerated fiber industry and enterprises, need further deep research and development, improve the performance of the regenerated fiber fabrics, expand the application field, enrich the varieties of the regenerated cellulose fiber and improve the development quality of products. Disclosure of Invention The invention aims to provide a natural regenerated composite functional fabric and a preparation method thereof, wherein viscose fibers, fibrilia and bamboo fibers are compounded, and weft double weave is adopted for weaving, wherein warp yarns are viscose/fibrilia/bamboo fiber blending, surface weft yarns and inner weft yarns are viscose fibers, and the viscose fibers are used as curtain fabrics and the like, but when the viscose fibers are used as warp yarns and bamboo fibers, the anti-ultraviolet performance of the fibrilia is far lower than that of the bamboo and fibrilia, and meanwhile, the fibrilia is used as a curtain fabric, the exposure time to natural light is longer, the fading is serious after long-time sun exposure, and therefore the fabric needs to be subjected to anti-ultraviolet finishing. The technical scheme is that the natural regenerated composite functional fabric is formed by compounding viscose fibers, fibrilia and bamboo fibers and is woven by adopting weft double-weave, wherein warp yarns are viscose/fibrilia/bamboo fiber blending, surface weft yarns and inner weft yarns are viscose fibers, and the composite functional fabric is formed by compounding and modifying lignin/keratin. The preparation method of the natural regenerated composite functional fabric comprises the following steps: S1, mixing nitric acid and phosphoric acid according to a volume ratio of 2-3:l to obtain a mixed solution, adding the mixed solution into the composite functional fabric, adding sodium nitrite, oxidizing the fabric, finally immersing the fabric in glycerol solution for immersing, washing and drying to obtain c