Real silk / regenerated bamboo joint fiber interwoven functional fabric and preparation method thereof

Abstract

The invention discloses a real silk / regenerated bamboo joint fiber interwoven functional fabric and a preparation method thereof, and belongs to the technical field of textiles. The invention relates to a real silk / regenerated bamboo joint fiber interwoven functional fabric and provides regenerated bamboo joint fibers and real silk. Real silk and regenerated bamboo joint fibers are blended into yarn, the yarn is soaked in warm water to remove surface impurities, microorganisms are inoculated into a culture medium containing the yarn for fermentation culture, and the yarn subjected to microbiological treatment is obtained; soaking the yarn subjected to microbiological treatment in a solution containing an antioxidant, enabling the antioxidant to be uniformly distributed on the surface of the yarn through an adsorption effect, and drying to obtain the pretreated yarn; and weaving the obtained pretreated yarns into the real silk / regenerated bamboo joint fiber interwoven functional fabric. According to the preparation method disclosed by the invention, the real silk / regenerated bamboo joint fiber interwoven functional fabric has the softness of real silk and the moisture absorption, air permeability and antibacterial property of regenerated bamboo joint fibers, and meanwhile, the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a silk / regenerated bamboo fiber interwoven functional fabric and a preparation method thereof. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for clothing fabrics. They not only pursue beauty and comfort, but also hope that the fabrics have certain functionality and environmental protection. The combination of natural fibers and environmentally friendly materials has become an important direction for the development of textiles. As a natural protein fiber, silk is loved by people for its soft feel, good moisture absorption and breathability. Its unique luster, soft feel and good moisture absorption and breathability have always been favored by people. However, the cost of pure silk fabrics is high, and it is easy to wrinkle and difficult to take care of. On the other hand, bamboo fiber, as a renewable resource, has good moisture absorption and breathability and antibacterial and deodorizing functions, but its strength and wear resistance are relatively poor. Therefore, interweaving silk and regenerated bamboo fiber can not only give play to their respective advantages, but also overcome their respective shortcomings, and develop new textiles that are both environmentally friendly and multifunctional, which has important market prospects and social value.

[0003] As a new type of environmentally friendly material, regenerated bamboo fiber has good antibacterial and UV protection functions, and is abundant in resources and low in cost. Combining silk and regenerated bamboo fiber can give full play to their respective advantages and prepare high-performance functional fabrics. However, there are significant differences in the physical and chemical properties of silk and regenerated bamboo fiber. How to effectively interweave the two while ensuring the comprehensive performance of the fabric is the focus and difficulty of current research. Summary of the invention

[0004] In order to solve the technical problems of existing silk fabrics being high in cost, easy to wrinkle and difficult to care for, and bamboo fiber fabrics being low in strength and poor in wear resistance, the present invention provides a functional fabric of silk / regenerated bamboo fiber interlacing and a preparation method thereof. The present invention successfully achieves effective interlacing of silk and regenerated bamboo fiber through reasonable pretreatment and post-finishing processes, and the prepared fabric has excellent comfort, durability and functionality and has broad application prospects.

[0005] The first object of the present invention is to provide a method for preparing the silk / regenerated bamboo fiber interwoven functional fabric, comprising the following steps:

[0006] Provide a recycled bamboo fiber and silk;

[0007] The silk and the regenerated bamboo fiber are blended into yarn, the yarn is soaked in warm water to remove surface impurities, microorganisms are inoculated into a culture medium containing the yarn for fermentation and culture, and the yarn treated with microorganisms is obtained;

[0008] The obtained yarn treated with microorganisms is immersed in a solution containing an antioxidant, the antioxidant is evenly distributed on the surface of the yarn by adsorption, and the yarn is dried to obtain the pretreated yarn;

[0009] The obtained pretreated yarn is woven into the silk / regenerated bamboo fiber interwoven functional fabric.

[0010] In some embodiments of the present invention, the temperature of the warm water is 20-30° C., and the soaking time is 1-2 hours.

[0011] In some embodiments of the present invention, the microorganisms include Bacillus subtilis and white rot fungi, and the inoculation amount is 1×10 5 ~5×10 6 Pieces / mL.

[0012] In some embodiments of the present invention, the fermentation conditions of the microorganisms are as follows: the fermentation temperature is 30-40° C., the fermentation time is 1 h to 20 h, and the pH of the fermentation liquid is 6-7.

[0013] In some embodiments of the present invention, the solution containing an antioxidant is a propyl gallate solution; the concentration of the solution containing an antioxidant is 0.5 to 2 mg / L; and the solvent of the solution containing an antioxidant is water and / or ethanol.

[0014] In some embodiments of the present invention, the yarn is immersed in the solution containing the antioxidant for 30 minutes to 5 hours, and the solution temperature is 25 to 35°C.

[0015] In some embodiments of the present invention, the process of blending silk and regenerated bamboo fiber into yarn is: drawing process; roving process; spun yarn process; and winding process.

[0016] The second object of the present invention is to provide a silk / regenerated bamboo fiber interwoven functional fabric, wherein the silk / regenerated bamboo fiber interwoven functional fabric yarn is formed by interweaving warp and weft; wherein the silk and regenerated bamboo fiber yarns are pretreated with microorganisms.

[0017] The above technical solution of the present invention has the following advantages compared with the prior art:

[0018] 1. High comfort: The combination of silk and regenerated bamboo fiber makes the fabric have excellent moisture absorption and breathability and soft feel.

[0019] 2. Strong durability: The strength and wear resistance of the fabric are improved through pretreatment and post-finishing processes.

[0020] 3. Good functionality: The antibacterial and UV protection properties of recycled bamboo fiber give the fabric multiple functionalities.

[0021] 4. By using regenerated bamboo fiber to replace part of the silk fiber, the production cost of the fabric is effectively reduced. At the same time, the regenerated bamboo fiber comes from renewable resources, which reduces the impact on the environment and complies with the concept of sustainable development. DETAILED DESCRIPTION

[0022] In order to solve the technical problems pointed out in the background technology, the present invention achieves the purpose by the following method:

[0023] The present invention provides a method for preparing a silk / regenerated bamboo fiber interwoven functional fabric, comprising the following steps:

[0024] Provide a recycled bamboo fiber and silk;

[0025] The silk and the regenerated bamboo fiber are blended into yarn, the yarn is soaked in warm water to remove surface impurities, microorganisms are inoculated into a culture medium containing the yarn for fermentation and culture, and the yarn treated with microorganisms is obtained;

[0026] The yarn treated with microorganisms is immersed in a solution containing an antioxidant, propyl gallate is evenly distributed on the surface of the yarn by adsorption, and then dried to obtain the pretreated yarn;

[0027] The obtained pretreated yarn is woven into the silk / regenerated bamboo fiber interwoven functional fabric.

[0028] In a specific embodiment of the present invention, the temperature of the warm water is 20-30° C., and the soaking time is 1-2 hours.

[0029] In a specific embodiment of the present invention, the microorganisms include Bacillus subtilis and white rot fungi, and the inoculation amount is 1×10 5 ~5×10 6 / mL. It is rational and can be 1×10 5 ~1×10 6 / mL, 1×10 5 ~5×10 5 / mL, 5×10 5 ~5×10 6 The inoculation amount should not be too low, which is not conducive to enzyme degradation. Through the fermentation of microorganisms to produce microbial enzymes, enzyme treatment can partially degrade certain protein chains in silk and bamboo fibers, making their structure more stable and reducing the formation of wrinkles. The treated silk is easier to wash and iron, reducing the difficulty of daily care.

[0030] In a specific embodiment of the present invention, the fermentation conditions of the microorganisms are: the fermentation temperature is 30-40°C, the fermentation time is 1h to 20h, illustratively, it can be 1h, 5h, 10h, 15h, 20h, etc., or any interval value between any two values, and the pH of the culture medium is 6-7.

[0031] The culture medium used in the present invention is a conventional culture medium, such as LB culture medium, which can be purchased commercially.

[0032] In a specific embodiment of the present invention, the concentration of the antioxidant solution is 0.5-2 mg / L, illustratively, it can be 0.5 mg / L, 1 mg / L, 1.5 mg / L, 2 mg / L, etc., or an interval value between any two values; the solvent of the antioxidant solution is water. The present invention utilizes propyl gallate to have good antioxidant properties, which can effectively inhibit the oxidation reaction of proteins in silk and bamboo fibers under the action of environmental factors such as light, heat, and oxygen, thereby delaying the aging process of silk and extending its service life.

[0033] In a specific embodiment of the present invention, the immersion time of the yarn in the antioxidant solution is 30 minutes to 5 hours, and can be 30 minutes, 1 hour, 1.5 hours, 2 hours, 2.5 hours, 3 hours, 3.5 hours, 4 hours, 4.5 hours, 5 hours, etc., or any interval between any two values. The solution temperature is 25 to 35 degrees Celsius, and can be 25 degrees Celsius, 30 degrees Celsius, 35 degrees Celsius, etc., or any interval between any two values.

[0034] In a specific embodiment of the present invention, the process of blending silk and regenerated bamboo fiber into yarn is: drawing process; roving process; spun yarn process; winding process. The process of spinning yarn of the present invention is a conventional process in the art and has no special provisions.

[0035] The present invention also provides a silk / regenerated bamboo fiber interwoven functional fabric, wherein the silk / regenerated bamboo fiber interwoven functional fabric yarn is formed by interweaving silk and regenerated bamboo fiber; wherein the silk and regenerated bamboo fiber yarns are pretreated by microorganisms.

[0036] The present invention is further described below in conjunction with specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0037] Example 1

[0038] This embodiment provides a silk / regenerated bamboo fiber interwoven functional fabric, and the specific steps are as follows:

[0039] (1) Providing regenerated bamboo fibers and silk of suitable length and subjected to conventional pretreatment; the conventional treatment includes cleaning and ultrasonic cleaning, and then the silk and bamboo fibers are opened to prevent the silk and fibers from agglomerating.

[0040] (2) Blending silk and regenerated bamboo fibers into yarns, the specific steps are as follows: a. Combing the fibers into uniform strips using a carding machine to remove impurities and short fibers; b. Drawing: combining multiple strips to increase the uniformity and strength of the fibers; c. Roving: further twisting the drawn fibers through a roving machine to form roving; d. Spun yarn: further twisting the roving through a spun yarn machine to form the final spun yarn. The spun yarn was then soaked in 25°C warm water for 1 hour to remove surface impurities, and then Bacillus subtilis was inoculated into the LB medium containing the yarn and fermented at 30°C for 10 hours (the pH of the fermentation liquid was 6, and the inoculation amount was 5×10 5 / mL) to obtain yarn treated with microorganisms; LB medium is a conventional medium that can be purchased from the market, and its main components are: Tryptone: 10g / L, yeast extract: 5g / L, sodium chloride (NaCl): 10g / L, and distilled water: 1L.

[0041] (3) The obtained yarn treated with microorganisms is taken out from the culture medium and naturally drained, and then the yarn is immersed in a 1 mg / L aqueous solution of propyl gallate at a temperature of 30°C. After immersion for 1 hour, the propyl gallate is evenly distributed on the surface of the yarn by adsorption, and then dried to obtain the pretreated yarn.

[0042] (4) Weaving the obtained pretreated yarn into the silk / regenerated bamboo fiber interwoven functional fabric.

[0043] Example 2

[0044] This embodiment provides a silk / regenerated bamboo fiber interwoven functional fabric, and the specific steps are as follows:

[0045] (1) Providing regenerated bamboo fibers and silk of suitable length and subjected to conventional pretreatment; the conventional treatment includes cleaning and ultrasonic cleaning, and then the silk and bamboo fibers are opened to prevent the silk and fibers from agglomerating.

[0046] (2) Blending silk and regenerated bamboo fibers into yarns, the specific steps are as follows: a. Combing the fibers into uniform strips using a carding machine to remove impurities and short fibers; b. Drawing: Combing multiple strips together to increase the uniformity and strength of the fibers; c. Roving: Further twisting the drawn fibers through a roving machine to form roving; d. Spun yarn: Further twisting the roving through a spun yarn machine to form the final spun yarn. The spun yarn was then soaked in 25°C warm water for 1 hour to remove surface impurities, and then Bacillus subtilis was inoculated into the LB medium containing the yarn and fermented at 35°C for 2 hours (the pH of the fermentation liquid was 6, and the inoculation amount was 8×10 5 / mL) to obtain yarn treated with microorganisms; LB medium is a conventional medium that can be purchased from the market, and its main components are: Tryptone: 10g / L, yeast extract: 5g / L, sodium chloride (NaCl): 10g / L, and distilled water: 1L.

[0047] (3) The yarn treated with microorganisms is taken out from the culture medium and naturally drained, and then the yarn is immersed in a 30° C. 0.5 mg / L propyl gallate aqueous solution for 1 hour, so that the propyl gallate is evenly distributed on the surface of the yarn by adsorption, and then dried to obtain the pretreated yarn;

[0048] (4) Weaving the obtained pretreated yarn into the silk / regenerated bamboo fiber interwoven functional fabric.

[0049] Example 3

[0050] This embodiment provides a silk / regenerated bamboo fiber interwoven functional fabric, and the specific steps are as follows:

[0051] (1) Providing regenerated bamboo fibers and silk of suitable length and subjected to conventional pretreatment; the conventional treatment includes cleaning and ultrasonic cleaning, and then the silk and bamboo fibers are opened to prevent the silk and fibers from agglomerating.

[0052] (2) Silk and regenerated bamboo fiber are blended into yarn, and the specific steps are as follows: a. Use a carding machine to comb the fibers into uniform strips to remove impurities and short fibers; b. Drawing: Combine multiple strips to increase the uniformity and strength of the fibers; c. Roving: The fibers after drawing are further twisted through a roving machine to form roving; d. Spun yarn: The roving is further twisted through a spun yarn machine to form the final spun yarn. Then, the spun yarn is soaked in 30°C warm water for 1 hour to remove surface impurities, and then Bacillus subtilis is inoculated into the LB culture medium containing the yarn and fermented at 30°C for 1 hour (the pH of the fermentation liquid is 7) to obtain yarn treated with microorganisms; wherein the LB culture medium is a conventional culture medium that can be purchased from the market, and the main components are: Tryptone: 10g / L, yeast extract: 5g / L, sodium chloride (NaCl): 10g / L, and distilled water: 1L.

[0053] (3) The yarn treated with microorganisms is taken out from the culture medium and naturally drained, and then the yarn is immersed in a 2 mg / L propyl gallate aqueous solution at a temperature of 30° C. for 1 hour, and the propyl gallate is evenly distributed on the surface of the yarn by adsorption, and then dried to obtain the pretreated yarn;

[0054] (4) Weaving the obtained pretreated yarn into the silk / regenerated bamboo fiber interwoven functional fabric.

[0055] Comparative Example 1

[0056] This comparative example provides a method for preparing a silk / regenerated bamboo fiber interwoven functional fabric, which is as follows:

[0057] Similar to Example 1, the difference is that Bacillus subtilis is not inoculated in step (2).

[0058] Comparative Example 2

[0059] This comparative example provides a method for preparing a silk / regenerated bamboo fiber interwoven functional fabric, which is as follows:

[0060] Similar to Example 1, the difference is that in step (3), no propyl gallate aqueous solution is used for soaking.

[0061] Performance Testing

[0062] Antibacterial performance test: The fabrics prepared in the embodiments of the present invention and the comparative examples were placed in a standard detergent aqueous solution at 25°C and 5g / L according to a bath ratio of 1g:40mL, and washed in a household washing machine, with each wash lasting 10 minutes, and naturally dried, for a total of 20 washes. The antibacterial rate of the silk fabric after washing 20 times was tested using the national standard GB / T 20944.3-2008 "Evaluation of antibacterial properties of textiles Part 3: Oscillation method". The test bacteria were: Gram-positive bacteria-Staphylococcus aureus (AATCC6538) and Gram-negative bacteria-Escherichia coli (AATCC 29522). Five samples were tested in parallel in each group, and the average value was taken. The test results are shown in Table 1.

[0063]

[0064]

[0065] It can be seen from the table that the fabric prepared by the present invention has certain antibacterial properties. In addition, the fabric prepared by the present invention has a soft feel and strong air permeability.

[0066] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A method for preparing a silk / regenerated bamboo fiber interwoven functional fabric, characterized in that: The following steps are involved: Provide a recycled bamboo fiber and silk; The silk and the regenerated bamboo fiber are blended into yarn, the yarn is soaked in warm water to remove surface impurities, microorganisms are inoculated into a culture medium containing the yarn for fermentation and culture, and the yarn treated with microorganisms is obtained; The obtained yarn treated with microorganisms is immersed in a solution containing an antioxidant, the antioxidant is evenly distributed on the surface of the yarn by adsorption, and the yarn is dried to obtain the pretreated yarn; The obtained pretreated yarn is woven into the silk / regenerated bamboo fiber interwoven functional fabric.

2. The preparation method according to claim 1, characterized in that: The temperature of the warm water is 20-30° C., and the soaking time is 1-2 hours.

3. The preparation method according to claim 1, characterized in that: The microorganisms include Bacillus subtilis and white rot fungi, and the inoculation amount is 1×10 5 ~5×10 6 Pieces / mL.

4. The preparation method according to claim 1, characterized in that: Microbial fermentation conditions: fermentation temperature is 30-40°C, and fermentation time is 1h to 20h.

5. The preparation method according to claim 1, characterized in that: The pH of the culture broth containing the yarn is 6-7.

6. The preparation method according to claim 1, characterized in that: The solution containing the antioxidant is a propyl gallate solution.

7. The preparation method according to claim 1, characterized in that: The concentration of the antioxidant in the antioxidant solution is 0.5-2 mg / L; the solvent of the antioxidant solution is water and / or ethanol.

8. The preparation method according to claim 1, characterized in that: The yarn is immersed in the solution containing the antioxidant for 30 minutes to 5 hours, and the solution temperature is 25 to 35°C.

9. The preparation method according to claim 1, characterized in that: The process of blending silk and regenerated bamboo fiber into yarn is as follows: drawing process; roving process; spun yarn process; and winding process.

10. A silk / regenerated bamboo fiber interwoven functional fabric prepared by the preparation method according to any one of claims 1 to 9, characterized in that: The silk / regenerated bamboo fiber interwoven functional fabric yarn is formed by silk and regenerated bamboo fiber; wherein the silk and regenerated bamboo fiber yarns are pretreated by microorganisms.

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