阅读说明：本技术 一种丝质面料及其制备方法 (Silk fabric and preparation method thereof ) 是由 程丹彤 于 2020-12-22 设计创作，主要内容包括：本发明提供了一种丝质面料的制备方法,包括如下步骤：将牛奶蛋白纤维和桑蚕丝合股,形成合股线A；将铜氨丝和桑蚕丝合股形成合股线B；将合股线A和合股线B分别浸入羧甲基壳聚糖水溶液中,搅拌、超声、红外线处理得到改性合股线C/羧甲基壳聚糖水溶液和改性合股线D/羧甲基壳聚糖水溶液；取硅酸锆、草酸钛、醋酸锌和去离子水混合,得混合液A；将混合液A分别加入改性合股线C/羧甲基壳聚糖水溶液中和改性合股线D/羧甲基壳聚糖水溶液,升温超声反应,经洗涤、干燥后分别得到改性合股线E和改性合股线F；以改性合股线E为经线,改性合股线F为纬线,采用5/1-3/1斜纹组织,经纬线交替循环,织造出丝质面料。(The invention provides a preparation method of a silk fabric, which comprises the following steps: the milk protein fiber and the mulberry silk are folded to form a folded yarn A; plying the cuprammonium rayon and the mulberry silk to form a plied yarn B; respectively immersing the folded yarn A and the folded yarn B into a carboxymethyl chitosan aqueous solution, and performing stirring, ultrasonic treatment and infrared treatment to obtain a modified folded yarn C/carboxymethyl chitosan aqueous solution and a modified folded yarn D/carboxymethyl chitosan aqueous solution; mixing zirconium silicate, titanium oxalate, zinc acetate and deionized water to obtain a mixed solution A; respectively adding the mixed solution A into a modified plied yarn C/carboxymethyl chitosan aqueous solution to neutralize the modified plied yarn D/carboxymethyl chitosan aqueous solution, heating up for ultrasonic reaction, and respectively obtaining a modified plied yarn E and a modified plied yarn F after washing and drying; and weaving the silk fabric by taking the modified plied yarns E as warps and the modified plied yarns F as wefts and adopting 5/1-3/1 twill weave and alternate circulation of the warps and the wefts.)

1. The preparation method of the silk fabric is characterized by comprising the following steps of:

s1: the milk protein fiber and the mulberry silk are plied, twisted by a low-power two-for-one twister and shaped by steam to form plied yarn A; plying cuprammonium rayon and mulberry silk, twisting by a low-power two-for-one twister, and forming a plied yarn B by steam;

s2: immersing the stranded wire A obtained in the step S1 in a carboxymethyl chitosan aqueous solution with the mass concentration of 60-80%, wherein the solid-to-liquid ratio is 1:20-30, stirring at the speed of 500-; immersing the stranded wire B into 60-80% carboxymethyl chitosan aqueous solution with the solid-to-liquid ratio of 1:15-25, stirring at the speed of 150-;

s3: mixing 3-7 parts of zirconium silicate, 10-20 parts of titanium oxalate, 5-8 parts of zinc acetate and 30-50 parts of deionized water, and fully stirring to be uniform to obtain a mixed solution A;

s4: adding the mixed solution A into a modified plied yarn C/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn C to the mixed solution A is 1:30-40, the temperature is 60-80 ℃, the ultrasonic treatment power is 1500-2500W, and the reaction lasts 80-120 min; washing and drying to obtain a modified plied yarn E; adding the mixed solution A into a modified plied yarn D/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn D to the mixed solution A is 1:20-30, the temperature is 40-60 ℃, the ultrasonic treatment power is 800-; washing and drying to obtain a modified plied yarn F;

s5: and weaving the silk fabric by taking the modified plied yarns E as warps and the modified plied yarns F as wefts and adopting 5/1-3/1 twill weave and alternate circulation of the warps and the wefts.

2. The preparation method of the silk fabric according to claim 1, wherein in the step S1, the milk protein fibers and the mulberry silk are twisted in a ratio of 1:1-1.25, and are subjected to low-temperature steam setting for 10-15 min; the cuprammonium rayon and the mulberry silk are twisted in a ratio of 1:1-1.5, and are subjected to low-temperature steam setting for 5-10 min.

3. The method for preparing the silk fabric according to claim 1, wherein the twisted yarn A in step S2 is immersed in a 75% carboxymethyl chitosan aqueous solution with a solid-to-liquid ratio of 1:25, stirred at a speed of 700r/min, and reacted for 4.5 hours under the conditions of an ultrasonic power of 1600W and an infrared irradiation power of 450W.

4. The method for preparing the silk fabric according to claim 1, wherein the twisted yarn B in the step S2 is immersed in a carboxymethyl chitosan aqueous solution with a mass concentration of 70%, a solid-to-liquid ratio is 1:18, stirring is carried out at a speed of 250r/min, and reaction is carried out for 3.5 hours under the conditions that ultrasonic power is 850W and infrared irradiation power is 250W.

5. The method as claimed in claim 1, wherein in step S3, the zirconium silicate 5 parts, titanium oxalate 14 parts, zinc acetate 7 parts and deionized water 45 parts are stirred at a speed of 800-.

6. The method for preparing the silk fabric according to claim 1, wherein the modified folded yarn C and the mixed solution A in the step S4 have a solid-to-liquid ratio of 1:35, a temperature of 75 ℃, an ultrasonic treatment power of 1800W, and a reaction time of 100 min.

7. The method for preparing the silk fabric according to claim 1, wherein the modified folded yarn D and the mixed solution A in the step S4 have a solid-to-liquid ratio of 1:20, a temperature of 50 ℃, an ultrasonic treatment power of 850W and a reaction time of 135 min.

8. The method of claim 1, wherein the warp and weft yarns in step S5 are woven using 4/1 twill weave.

9. The method of manufacturing a silk fabric according to claims 1 to 8.

Technical Field

The invention relates to the technical field of fabric preparation, in particular to a silk fabric and a preparation method thereof.

Background

Silk is a natural fiber with excellent performance, is praised as 'fiber queen' and is deeply loved by people, and full-real-silk fabric is high-grade textile, has soft glossiness, good comfort level and drapability. However, the silk is limited by yield and regions, and the resources are relatively poor, so that the price of the full-silk fabric is higher. In addition, the silk fiber has the defects of easy wrinkling, yellowing, poor elasticity and the like, and the application of the silk is limited to a certain extent.

In the prior art, in order to improve the performance of silk fibers, two methods, namely physical modification and chemical modification, are mainly adopted, wherein the improvement of hand feeling and appearance is mainly realized by the physical method, and the functional modification is realized by the chemical modification (such as improving the flame retardance, dyeing property and the like). However, through the modification of chemical organic solvents, silk fibers are often difficult to maintain the original natural styles of gloss, hand feeling and the like of real silk, and meanwhile, the problems of formaldehyde, toxicity, environmental pollution and the like are also brought. Today, when pursuing quality of life and paying attention to environmental protection, higher requirements are put forward on a silk modification method: namely, a safer, nontoxic, green, environment-friendly and efficient modification method is required.

In the chemical modification, the nano particles are directly loaded with the silk fibers, but the affinity between the nano particles and the silk fibers is poor, the combination is not firm, the modified particles are not uniformly dispersed, the agglomeration phenomenon is serious, and the functionality is greatly reduced.

Disclosure of Invention

The invention aims to provide the preparation method of the modified silk fabric aiming at the defects in the preparation method of the silk fabric in the prior art, so that the production cost is reduced, the fiber is directly modified without using a chemical organic solvent in the process, the influence on the original physical properties of real silk is avoided, the silk fabric has good glossiness, comfort and drapability, and the wear resistance, antibacterial property, crease resistance, flame retardance, oxidation resistance, mildew resistance and other properties of the silk fabric are also obviously improved.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a preparation method of silk fabric comprises the following steps:

s1: the milk protein fiber and the mulberry silk are plied, twisted by a low-power two-for-one twister and shaped by steam to form plied yarn A; plying cuprammonium rayon and mulberry silk, twisting by a low-power two-for-one twister, and forming a plied yarn B by steam;

s2: immersing the stranded wire A obtained in the step S1 in a carboxymethyl chitosan aqueous solution with the mass concentration of 60-80%, wherein the solid-to-liquid ratio is 1:20-30, stirring at the speed of 500-; immersing the stranded wire B into 60-80% carboxymethyl chitosan aqueous solution with the solid-to-liquid ratio of 1:15-25, stirring at the speed of 150-;

s3: mixing 3-7 parts of zirconium silicate, 10-20 parts of titanium oxalate, 5-8 parts of zinc acetate and 30-50 parts of deionized water, and fully stirring to be uniform to obtain a mixed solution A;

s4: adding the mixed solution A into a modified plied yarn C/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn C to the mixed solution A is 1:30-40, the temperature is 60-80 ℃, the ultrasonic treatment power is 1500-2500W, and the reaction lasts 80-120 min; washing and drying to obtain a modified plied yarn E; adding the mixed solution A into a modified plied yarn D/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn D to the mixed solution A is 1:20-30, the temperature is 40-60 ℃, the ultrasonic treatment power is 800-; washing and drying to obtain a modified plied yarn F;

s5: and weaving the silk fabric by taking the modified plied yarns E as warps and the modified plied yarns F as wefts and adopting 5/1-3/1 twill weave and alternate circulation of the warps and the wefts.

Preferably, in the step S1, the milk protein fibers and the mulberry silk are twisted at a ratio of 1:1-1.25, and are subjected to low-temperature steam setting for 10-15 min; the cuprammonium rayon and the mulberry silk are twisted in a ratio of 1:1-1.5, and are subjected to low-temperature steam setting for 5-10 min.

Preferably, in step S2, the strand a is immersed in a 75% carboxymethyl chitosan aqueous solution at a solid-to-liquid ratio of 1:25, stirred at a speed of 700r/min, and reacted for 4.5 hours under conditions of an ultrasonic power of 1600W and an infrared irradiation power of 450W.

Preferably, in step S2, the strand B is immersed in a 70% carboxymethyl chitosan aqueous solution at a solid-to-liquid ratio of 1:18, stirred at a speed of 250r/min, and reacted for 3.5 hours under conditions of an ultrasonic power of 850W and an infrared irradiation power of 250W.

Preferably, 5 parts of zirconium silicate, 14 parts of titanium oxalate, 7 parts of zinc acetate and 45 parts of deionized water in the step S3 are stirred at the speed of 800-1000r/min until the mixture is uniform.

Preferably, the modified stranded wire C in the step S4 is immersed in the mixed solution A, the solid-liquid ratio is controlled to be 1:35, the temperature is controlled to be 75 ℃, the ultrasonic treatment power is 1800W, and the reaction is carried out for 100 min.

Preferably, the modified stranded wire D in the step S4 is immersed in the mixed solution A, the solid-liquid ratio is controlled to be 1:20, the temperature is controlled to be 50 ℃, the ultrasonic treatment power is 850W, and the reaction is carried out for 135 min.

Preferably, the warp and weft yarns in step S5 are woven using 4/1 twill weave.

Has the advantages that:

1. the milk protein fiber has luxurious appearance, pleasant gloss, smooth hand feeling and better physical and mechanical properties, contains more than 10 amino acids, natural moisturizing factors and a large number of hydrophilic groups such as hydroxyl, amino, carboxyl and the like which are beneficial to the human body, and the longitudinal surface of the fiber presents unobvious grooves, thereby providing more surface modification points for the fiber and improving the grafting amount and the firmness. The copper ammonia wire is bright in color, has excellent comfort level and antistatic capability, and is convenient to clean. According to the invention, the milk protein fibers and the cuprammonium rayon are selected to be respectively plied with the silk in proportion, so that the using amount of the natural silk can be reduced, the production cost is reduced, the requirements are met, the glossiness and the comfort level similar to those of the natural silk fibers are kept, and the application is wider.

2. In order to avoid the influence of the organic solvent modifier on the fiber raw material, the inorganic modifier is adopted to modify the surface of the fiber; however, because the affinity between the inorganic modifier and the fiber is poor, a layer of carboxymethyl chitosan film is prepared on the surface of the fiber, and because the carboxymethyl chitosan has good antibacterial performance, the antibacterial performance of the fiber is improved while the carboxymethyl chitosan serves as a 'modification layer'. The carboxymethyl chitosan utilizes a large amount of hydroxyl groups to form hydrogen bonds with hydrophilic groups such as carboxyl groups on the surface of the fiber, so that the binding force with the fiber is improved; on one hand, the amino of the carboxymethyl chitosan is subjected to a complex reaction with metal inorganic salt, on the other hand, the amino is protonated in an aqueous solution to generate hydroxyl, when a certain concentration is reached, metal ions are reduced into oxides, and reduction reaction is performed on zirconium ions, titanium ions, zinc ions and the like, so that functional metal oxides are generated in situ.

3. In the complexation and in-situ reaction of metal inorganic salt, the formation of crystal form, particle size distribution and dispersibility of metal oxide are controlled by selecting proper solid-liquid ratio dosage, reaction temperature, ultrasonic power and reaction time, and the combination is firm, thereby obviously improving the performances of wear resistance, antibiosis, crease resistance, oxidation resistance, mildew resistance and the like.

4. In the step of modifying the fiber, the vibration performance of ultrasonic waves is utilized to enable the materials to be in continuous vibration, so that the collision probability among the materials is improved; by utilizing the irradiation effect of infrared rays, water molecules are heated and activated, so that large water molecular groups are activated into small water molecular groups, mutual collision and interaction among materials are further improved, the dispersibility and the uniformity are good, the reaction rate is improved, and the reaction time is shortened.

Detailed Description

The present invention is further illustrated below by reference to the following examples, which are intended to be illustrative of the invention only and are not intended to be limiting.

The test methods of the parameters in the present invention are as follows.

1. Drape coefficient (umbrella method): the test is a round shape with the diameter of 240mm, during the test, a sample is placed on a small circular disc table with the diameter of 120mm, the center of the test is concentric with the center of the small circular disc, the sample sags along the table edge of the small circular disc due to self weight, a certain umbrella shape is formed after a period of time, then the horizontal projection area S0 of the sample is measured, and the sag coefficient is calculated through the following formula: coefficient of drape F = (S1-S0)/(S1-S2) × 100

S1: test area; s2: the area of the small disk; s0: projected area of the test.

2. Surface friction coefficient (rough wet feeling, silky feeling): the KES stylometer test, test method refers to KES FB4 method.

3. Anti-wrinkle recovery angle: reference is made to the standard AATCC 66-2008.

4. Ultraviolet resistance: refer to assessment of ultraviolet resistance of textiles.

5. Moisture permeability: reference is made to GB/T12704.1-2009.

6. Air permeability: reference is made to GB/T5453-1997.

7. Staphylococcus aureus bacteriostasis rate and Escherichia coli bacteriostasis rate refer to GB 15979-2002.

Example 1

S1: plying the milk protein fiber and the mulberry silk according to the proportion of 1:1, twisting by a low-power two-for-one twister, and shaping by low-temperature steam for 10min to obtain a plied yarn A; plying the cuprammonium rayon and the mulberry silk according to the ratio of 1:1, twisting by a low-power two-for-one twister, and shaping by low-temperature steam for 5min to obtain a plied yarn B;

s2: immersing the folded yarn A into a carboxymethyl chitosan aqueous solution with the mass concentration of 60%, controlling the solid-to-liquid ratio to be 1:20, stirring at the speed of 500r/min, and reacting for 3h under the conditions of 1300W of ultrasonic power and 300W of infrared irradiation power to obtain a modified folded yarn C/carboxymethyl chitosan aqueous solution; immersing the folded yarn B into 60% carboxymethyl chitosan aqueous solution, controlling the solid-to-liquid ratio to be 1:15, stirring at the speed of 150r/min, and reacting for 2h under the conditions of ultrasonic power of 800W and infrared radiation power of 200W to obtain modified folded yarn D/carboxymethyl chitosan aqueous solution;

s3: mixing 3 parts of zirconium silicate, 10 parts of titanium oxalate, 5 parts of zinc acetate and 30 parts of deionized water, and stirring at the speed of 800r/min until the mixture is uniform to obtain a mixed solution A;

s4: adding the mixed solution A into a modified plied yarn C/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn C to the mixed solution A is 1:30, the temperature is 60 ℃, the ultrasonic treatment power is 1500W, and the reaction time is 80 min; washing and drying to obtain a modified plied yarn E; adding the mixed solution A into a modified plied yarn D/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn D to the mixed solution A is 1:20, the temperature is 40 ℃, the ultrasonic treatment power is 800W, and reacting for 120 min; washing and drying to obtain a modified plied yarn F;

s5: and weaving the silk fabric by taking the modified plied yarns E as warps and the modified plied yarns F as wefts and adopting 5/1 twill weave and alternate circulation of the warps and the wefts.

Example 2

S1: plying the milk protein fiber and the mulberry silk according to the proportion of 1:1.25, twisting by a low-power two-for-one twister, and shaping by low-temperature steam for 15min to obtain a plied yarn A; plying the cuprammonium rayon and the mulberry silk according to the ratio of 1:1.5, twisting by a low-power two-for-one twister, and shaping by low-temperature steam for 10min to obtain a plied yarn B;

s2: immersing the folded yarn A into a carboxymethyl chitosan aqueous solution with the mass concentration of 80%, controlling the solid-to-liquid ratio to be 1:30, stirring at the speed of 800r/min, and reacting for 6 hours under the conditions that the ultrasonic power is 1800W and the infrared radiation power is 500W to obtain a modified folded yarn C/carboxymethyl chitosan aqueous solution; immersing the folded yarn B into a carboxymethyl chitosan aqueous solution with the concentration of 80%, controlling the solid-to-liquid ratio to be 1:25, stirring at the speed of 300r/min, and reacting for 4h under the conditions that the ultrasonic power is 1000W and the infrared radiation power is 300W to obtain a modified folded yarn D/carboxymethyl chitosan aqueous solution;

s3: mixing 7 parts of zirconium silicate, 20 parts of titanium oxalate, 8 parts of zinc acetate and 50 parts of deionized water, and stirring at the speed of 1000r/min until the mixture is uniform to obtain a mixed solution A;

s4: adding the mixed solution A into a modified plied yarn C/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn C to the mixed solution A is 1:40, the temperature is 80 ℃, the ultrasonic treatment power is 2500W, and the reaction time is 120 min; washing and drying to obtain a modified plied yarn E; adding the mixed solution A into a modified plied yarn D/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn D to the mixed solution A is 1:30, the temperature is 60 ℃, the ultrasonic treatment power is 1000W, and the reaction is carried out for 150 min; washing and drying to obtain a modified plied yarn F;

s5: and weaving the silk fabric by taking the modified plied yarns E as warps and the modified plied yarns F as wefts and adopting 3/1 twill weave and alternate circulation of the warps and the wefts.

Example 3

S1: plying the milk protein fiber and the mulberry silk according to the proportion of 1:1.15, twisting by a low-power two-for-one twister, and shaping by low-temperature steam for 12min to obtain a plied yarn A; plying cuprammonium rayon and mulberry silk according to the ratio of 1:1.3, twisting by a low-power two-for-one twister, and shaping by low-temperature steam for 8min to obtain a plied yarn B;

s2: immersing the folded yarn A into a carboxymethyl chitosan aqueous solution with the mass concentration of 75%, controlling the solid-to-liquid ratio to be 1:25, stirring at the speed of 700r/min, and reacting for 4.5h under the conditions of ultrasonic power of 1600W and infrared irradiation power of 450W to obtain a modified folded yarn C/carboxymethyl chitosan aqueous solution; immersing the folded yarn B into a carboxymethyl chitosan aqueous solution with the concentration of 70%, controlling the solid-to-liquid ratio to be 1:18, stirring at the speed of 250r/min, and reacting for 3.5h under the conditions that the ultrasonic power is 850W and the infrared irradiation power is 250W to obtain a modified folded yarn D;

s3: mixing 5 parts of zirconium silicate, 14 parts of titanium oxalate, 7 parts of zinc acetate and 45 parts of deionized water, and stirring at the speed of 900r/min until the mixture is uniform to obtain a mixed solution A;

s4: adding the mixed solution A into a modified plied yarn C/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn C to the mixed solution A is 1:35, the temperature is 75 ℃, the ultrasonic treatment power is 1800W, and the reaction time is 100 min; washing and drying to obtain a modified plied yarn E; adding the mixed solution A into a modified plied yarn D/carboxymethyl chitosan aqueous solution, wherein the solid-to-liquid ratio of the modified plied yarn D to the mixed solution A is 1:20, the temperature is 50 ℃, the ultrasonic treatment power is 850W, and reacting for 135 min; washing and drying to obtain a modified plied yarn F;

s5: and weaving the silk fabric by taking the modified plied yarns E as warps and the modified plied yarns F as wefts and adopting 4/1 twill weave and alternate circulation of the warps and the wefts.

The performance test results of the silk fabrics prepared in the above examples 1 to 3 are as follows:

comparative example 1

The difference from example 1 is that step S2 is omitted and the metal oxide is directly reacted with the plied fibers, and other steps and conditions are not changed. That is, a mixture of zirconia, zinc oxide and titania is prepared in step S3 and then directly acted on in step S4.

Comparing the performance data of comparative example 1 and example 1, it can be seen that, because the carboxymethyl chitosan aqueous solution is not used as the "modification layer", the affinity of the metal oxide and the fiber directly acting is small, and the metal oxide and the fiber are easy to agglomerate and unevenly distribute, so that the functional effect of the fabric is not good.

Comparative example 2

The difference from example 1 is that the ultrasonic wave and infrared ray treatment were not performed in step S2, and other steps and conditions were not changed.

Comparing the performance data of the comparative example 2 and the example 1, the vibration performance of the ultrasonic wave is utilized in the fiber modification step, so that the materials are in continuous vibration, and the collision probability among the materials is improved; by utilizing the irradiation effect of infrared rays, water molecules are heated and activated, so that large water molecular groups are activated into small water molecular groups, mutual collision and interaction among materials are further improved, the dispersibility and the uniformity are good, the reaction rate is improved, and the reaction time is shortened.

Comparative example 3

The difference from example 1 is that step S5 uses the warp and weft in a 1:1 twill weave, and other steps and conditions are unchanged.

Compared with the performance data of the comparative example 3 and the example 1, the modified plied yarn E prepared from the milk protein fibers with better mechanical properties is used as warp yarn, the modified plied yarn F prepared from the cuprammonium rayon with poorer wear resistance is used as weft yarn, and 4/1 twill weave is adopted; so that the overall fabric has better function.

Comparative example 4

The difference from the example 1 is that in the step S2, the solid-to-liquid ratio of the twisted yarn a to the carboxymethyl chitosan aqueous solution is adjusted to 1:15, the solid-to-liquid ratio of the modified twisted yarn B to the carboxymethyl chitosan aqueous solution is respectively 1:10, and other steps and conditions are not changed.

Comparative example 5

The difference from the example 1 is that in the step S2, the solid-to-liquid ratio of the twisted yarn a to the carboxymethyl chitosan aqueous solution is adjusted to 1:35, the solid-to-liquid ratio of the modified twisted yarn B to the carboxymethyl chitosan aqueous solution is respectively 1:30, and other steps and conditions are not changed.

Compared with the performance data of the comparative example 4, the comparative example 5 and the example 1, the use amount of the carboxymethyl chitosan aqueous solution is too small, so that the point position of a modified layer is less, and the concentration of hydroxyl generated by protonation of amino in the aqueous solution is not enough, so that metal ions cannot be well reduced into oxides; the carboxymethyl chitosan aqueous solution is too large in dosage, the solution is easy to waste, and the modified layer is too thick, uneven in distribution and poor in firmness.

Comparative example 6

The difference from example 1 is that in step S4, the solid-to-liquid ratio of the modified stranded wire C and the mixed solution a was adjusted to 1:10, and the solid-to-liquid ratio of the modified stranded wire D and the mixed solution a was adjusted to 1:10, respectively, and the other steps and conditions were not changed.

Comparative example 7

The difference from example 1 is that in step S4, the solid-to-liquid ratio of the modified stranded wire C and the mixed solution a was adjusted to 1:50, and the solid-to-liquid ratio of the modified stranded wire D and the mixed solution a was adjusted to 1:30, respectively, and the other steps and conditions were not changed.

Comparing the performance data of comparative example 6, comparative example 7 and example 1, it can be seen that the liquid is too little, the metal oxide adhered on the surface of the fiber is too little, and the ultraviolet resistance, the antibacterial property, the wear resistance and the like are affected; excessive liquid is easy to cause waste, the metal oxide adhered to the surface of the fiber is too thick, the fiber is easy to agglomerate, the firmness is poor, and the nano particles are easy to fall off in the using process.

Comparative example 8

The difference from example 1 is that the temperatures of the modified stranded wire C and the mixed solution a are respectively adjusted to 30 ℃ in step S4; the temperature of the modified folded yarn D and the mixed liquid A is 10 ℃, and other steps and conditions are unchanged.

Comparative example 9

The difference from example 1 is that the temperatures of the modified stranded wire C and the mixed solution a are respectively adjusted to 90 ℃ in step S4; the temperature of the modified plied yarn D and the mixed liquid A is 70 ℃, and other steps and conditions are unchanged.

Comparing the performance data of comparative example 8, comparative example 9 and example 1, it can be seen that the reaction temperature is too high, the hand feeling after treatment becomes rough, the strength damage of the fabric is large, and the service performance is lost; the reaction temperature is too low, which affects the crystal structure of the nano metal oxide and can not achieve the purposes of ultraviolet resistance, wear resistance, antibiosis and the like.

Comparative example 10

The difference from example 1 is that the reaction time of the modified stranded wire C and the mixed solution a is adjusted to 60min in step S4; the temperature of the modified plied yarn D and the mixed solution A is 50 ℃, the ultrasonic treatment power is 850W, the reaction is 100min, and other steps and conditions are unchanged.

Comparative example 11

The difference from example 1 is that in step S4, the reaction time of the modified stranded wire C and the mixed solution a is adjusted to 140 min; the reaction time of the modified stranded wire D and the mixed liquid A is 170min, and other steps and conditions are not changed.

Comparing the performance data of the comparative example 10, the comparative example 11 and the example 1, the reaction time is too long, the generated metal oxide particles can be agglomerated, the particle size is obviously increased, the surface roughness is increased, the particles are easy to fall off, and the original physical properties of the fibers are influenced; the reaction time is too short, which affects the crystallization degree of the nano metal oxide and has poor performances of yellowing prevention, ultraviolet resistance and the like.

The performance test results of the silk fabrics prepared in the comparative examples 1 to 11 are as follows:

the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.