Ice-feeling antibacterial blended yarn and preparation method thereof

Abstract

The invention relates to an ice-feeling antibacterial blended yarn and a preparation method thereof, and relates to the technical field of textile. Bamboo / cotton blended yarn is subjected to primary soaking modification through a mixed solution containing cephalosporin, epichlorohydrin and hydrochloric acid, then is subjected to secondary soaking modification through a nano-emulsion containing bisdemethoxycurcumin and eudesmol, and finally is subjected to secondary soaking modification through a nano-emulsion containing bisdemethoxycurcumin and eudesmol to obtain the ice-feeling antibacterial blended yarn. On one hand, the blended yarn is grafted with the cercosporin in a covalent bond mode, reactive oxygen with cytotoxicity is generated by means of the photosensitive activity of the cercosporin, the antibacterial activity of the bisdemethoxycurcumin is matched, the synergistic antibacterial effect is achieved, and the antibacterial property of the yarn is improved; by adding the bisdemethoxycurcumin and the eudesmol, the yarn has ice feeling and becomes loose at the same time, the softness of the yarn is effectively improved, and the wearability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of textiles, and particularly relates to an ice-sensing antibacterial blended yarn and a preparation method thereof. Background Art

[0002] Cotton fiber is the main raw material of China's textile industry. Cotton fiber products have good moisture absorption and air permeability, are soft and warm, but when used to prepare spring and summer clothing fabrics, there is a problem of insufficient antibacterial property. From the perspective of preparing more comfortable fabrics, different types of fibers can be blended or antibacterial agents such as silver-based agents can be used to improve the antibacterial performance of cotton fibers.

[0003] Bamboo fiber is a newly emerging natural and green environmental protection fiber. Bamboo fiber has moisture absorption, air permeability and drapability, which are all superior to cotton fabrics. Additionally, importantly, it also has natural antibacterial properties. Therefore, bamboo fiber is increasingly used in our lives, especially has great application potential in the textile field. Thus, researchers are also committed to developing various bamboo fiber textiles.

[0004] In addition, with the increasing popularity of functional clothing, for example, for spring and summer clothing fabrics, it is not only required to have the function of breathable sweat discharge but also to have good contact cool feeling. Fabrics with ice-sensing effects are generally developed from aspects such as fiber structure and raw materials, while the research on the method of using modified treatment agents is less. In view of this, in order to develop more comfortable fabrics, the present invention provides an ice-sensing antibacterial blended yarn and a preparation method thereof. Summary of the Invention

[0005] The purpose of the present invention is to provide an ice-sensing antibacterial blended yarn and a preparation method thereof in order to solve the above problems.

[0006] The present invention realizes the above purpose through the following technical solutions:

[0007] As the first aspect of the present invention, the present invention provides an ice-sensing antibacterial blended yarn, and the cool-sensing antibacterial blended yarn is obtained by first soaking and modifying the blended yarn with a mixed solution containing cercosporin, epichlorohydrin and hydrochloric acid, and then soaking and modifying the blended yarn with a nanoemulsion containing bisdemethoxycurcumin and eucalyptol.

[0008] As a further optimized scheme of the present invention, the preparation method of the nanoemulsion containing bisdemethoxycurcumin and eucalyptol includes the following steps:

[0009] (1) at room temperature, bisdemethoxycurcumin was added to eucalyptol and mixed uniformly to prepare an oil phase, 5% by volume of Tween 80 and 10% by volume of glycerol were mixed uniformly, 10-15% by volume of the oil phase was added and mixed again, and then 70-75% by volume of ultrapure water was slowly added dropwise to make up the system, and a crude emulsion was obtained after sufficient mixing;

[0010] Under ice bath conditions, the crude emulsion was placed in an ultrasonic cell disruptor with a power set to 300-500 W. After ultrasonication for 8-12 min, a nanoemulsion containing bisdemethoxycurcumin and eucalyptol was obtained.

[0011] As a further optimization scheme of the present invention, the mass volume of the bisdemethoxycurcumin and eucalyptol is 1g:5-10mL.

[0012] As a further optimization solution of the present invention, the blended yarn is bamboo / cotton blended yarn.

[0013] As a further optimization method of the present invention, the volume ratio of epichlorohydrin to hydrochloric acid is 1:2, the mass concentration of hydrochloric acid is 15-25wt%, and the concentration of cercosporin in the mixed solution is 1.0-2.0 mg / mL.

[0014] As a second aspect of the present invention, there is also provided a method for preparing the ice-sensing antibacterial blended yarn as described above, comprising the following steps:

[0015] (1) immersing the blended yarn in a mixed solution containing cercosporin, epichlorohydrin and hydrochloric acid, stirring at 25° C. in the dark for 5-10 hours for a first immersion modification, and washing and drying the blended yarn after the first immersion modification;

[0016] (2) The blended yarn is immersed in a nanoemulsion containing bisdemethoxycurcumin and eucalyptol, and immersed at 80° C. for 60-80 min for secondary immersion modification, and then cooled to room temperature, and the blended yarn after the secondary immersion modification is cleaned and dried to obtain the ice-sensing antibacterial blended yarn.

[0017] As a further optimization scheme of the present invention, in the one-time immersion modification, the bath ratio of the blended yarn to the mixed solution containing cercosporin, epichlorohydrin and hydrochloric acid is 1:25, and in the second immersion modification, the bath ratio of the blended yarn to the nanoemulsion containing bisdemethoxycurcumin and eucalyptol is 1:30.

[0018] As a further optimization scheme of the present invention, in step (1) and step (2), the cleaning and drying are specifically performed by using anhydrous ethanol and deionized water alternately for 2-3 times, and drying at 40-50° C. for 2-4 hours.

[0019] The beneficial effects of the present invention are as follows:

[0020] For the bamboo / cotton blended yarn, the present invention first conducts a primary immersion modification with a mixed solution containing cercosporin, epichlorohydrin, and hydrochloric acid, and then conducts a secondary immersion modification with a nanoemulsion containing bisdemethoxycurcumin and eucalyptol. On the one hand, the blended yarn is grafted with cercosporin in the form of a covalent bond, and cytotoxic reactive oxygen species are generated by virtue of the photosensitizing activity of cercosporin. In combination with the antibacterial property of bisdemethoxycurcumin, a synergistic antibacterial effect is exerted, improving the antibacterial property of the yarn. On the other hand, the addition of bisdemethoxycurcumin and eucalyptol endows the yarn with an ice feeling, and at the same time, the yarn becomes loose, effectively improving the softness of the yarn and enhancing the wearing performance. Specific embodiments

[0021] The following further details the present application. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] In the following examples:

[0023] The blended yarn selected is a bamboo / cotton (55 / 45) 15.5 tex blended yarn, purchased from Shandong Huafang Spinning Co., Ltd.;

[0024] The following are all purchased from Shanghai Yuanye Bio-Technology Co., Ltd.: bisdemethoxycurcumin, CAS number 33171-05-0; eucalyptol, CAS number 470-82-6; cercosporin, CAS number 35082-49-6;

[0025] Epichlorohydrin, purchased from Shanghai Denuo Chemical Industry, CAS number 106-89-8.

[0026] Example 1

[0027] The specific preparation process of the ice-sensing antibacterial blended yarn provided in this example includes the following steps:

[0028] (1) Immerse the blended yarn in a mixed solution containing cercosporin, epichlorohydrin, and hydrochloric acid, with a liquor ratio of 1:25, stir in the dark at 25 °C for 5 h for primary immersion modification, alternately wash the blended yarn modified by primary immersion with absolute ethanol and deionized water 2 times, and dry at 40 °C for 4 h;

[0029] Among them, the volume ratio of epichlorohydrin to hydrochloric acid is 1:2, the mass concentration of hydrochloric acid is 15 wt%, and the concentration of cercosporin in the mixed solution is 1.0 mg / mL;

[0030] (2) The blended yarn was immersed in a nanoemulsion containing bisdemethoxycurcumin and eucalyptol at a bath ratio of 1:30, and immersed at 80°C for 80 min for secondary immersion modification, and then cooled to room temperature. The blended yarn after secondary immersion modification was alternately washed twice with anhydrous ethanol and deionized water, and dried at 40°C for 4 h.

[0031] The preparation method of the nanoemulsion containing bisdemethoxycurcumin and eucalyptol is as follows: first, under room temperature, bisdemethoxycurcumin is added to eucalyptol and mixed evenly to prepare an oil phase, the mass volume of bisdemethoxycurcumin and eucalyptol is 1g:5mL, 5% by volume of Tween 80 and 10% by volume of glycerol are mixed evenly, 15% by volume of the oil phase is added and mixed again, and then 70% by volume of ultrapure water is slowly added dropwise to supplement the system, and a crude emulsion is obtained after sufficient mixing, and then, under ice bath conditions, the crude emulsion is placed in an ultrasonic cell disruptor, the power is set to 300W, and after ultrasonication for 12 minutes, the nanoemulsion containing bisdemethoxycurcumin and eucalyptol is obtained.

[0032] The blended yarn prepared as above is counted as blended yarn A, the raw material blended yarn without any treatment, i.e. bamboo / cotton (55 / 45) 15.5tex blended yarn is counted as blended yarn B, the blended yarn modified by one immersion is counted as blended yarn C, the blended yarn modified by only two immersions is counted as blended yarn D, and the blended yarn prepared by reversing the order of one immersion modification and two immersion improvements is counted as blended yarn E.

[0033] The following tests were conducted on the blended yarn AE: ① Antibacterial test: The blended yarn AE was woven into fabric samples of the same size using the same textile process, and each fabric sample was cut into a size of 20mm×20mm. According to GB / T 20944.2-2007 "Evaluation of Antibacterial Properties of Textiles Part 2: Absorption Method", the test bacteria was Staphylococcus aureus, and antibacterial tests were conducted in accordance with the standard. Two groups of experiments were conducted in daylight and darkness, respectively. Three parallel samples were set in the same group of experiments, and the results were averaged.

[0034] ② Cool feeling at the touch: The blended yarns AE were respectively made into fabric samples of the same size according to the same textile process, and then the cool feeling at the touch of the fabric samples was tested according to the standard GB / T35263-2017; Evaluation standard: Cool feeling at the touch was greater than or equal to 0.24J / (cm 2 ·s) is A; the instantaneous coolness is greater than or equal to 0.15J / (cm 2 ·s), less than 0.24J / (cm 2 ·s) is B, and the instantaneous coolness is less than 0.15J / (cm 2 ·s) is C.

[0035] The results are shown in Table 1.

[0036] Table 1. Statistical Table of Results

[0037]

[0038] As can be seen from Table 1, in terms of the antibacterial test results: the fabric obtained by weaving the blended yarn A has the highest antibacterial rate, and from the comparison of the antibacterial rates of the two experimental groups of the sunlight group and the dark group, it can also be seen that the antibacterial ability under light conditions is significantly higher than that under dark conditions, indicating the photosensitive properties of the blended yarn A. Since bamboo fiber itself has a certain antibacterial effect, the antibacterial effect of the bamboo / cotton blended yarn (blended yarn B) before treatment is 49.3% under sunlight, and bisdemethoxycurcumin itself also has antibacterial ability, so the antibacterial property of the blended yarn D obtained only by secondary immersion modification is also improved compared with that of the blended yarn B.

[0039] In terms of the instantaneous cool feeling results upon contact: after treating the blended yarn with a nanoemulsion containing bisdemethoxycurcumin and eucalyptol, the instantaneous cool feelings upon contact of the fabrics obtained by weaving the blended yarn A, the blended yarn D, and the blended yarn E all reached Grade A. While for the fabrics woven from the blended yarns B - C without the above-mentioned nanoemulsion immersion improvement treatment, their instantaneous cool feelings upon contact were Grade C.

[0040] Example 2

[0041] The specific preparation process of the ice - feeling antibacterial blended yarn provided in this example includes the following steps:

[0042] (1) Immerse the blended yarn in a mixed solution containing cercosporin, epichlorohydrin, and hydrochloric acid, with a bath ratio of 1:25, stir in the dark at 25°C for 10 h for the first immersion modification, alternately wash the blended yarn after the first immersion modification 3 times with absolute ethanol and deionized water, and dry it at 50°C for 2 h;

[0043] Among them, the volume ratio of epichlorohydrin to hydrochloric acid is 1:2, the mass concentration of hydrochloric acid is 25 wt%, and the concentration of cercosporin in the mixed solution is 2.0 mg / mL.

[0044] (2) Immerse the blended yarn in a nanoemulsion containing bisdemethoxycurcumin and eucalyptol, soak at 80°C for 60 min for the second immersion modification, with a bath ratio of 1:30, then cool to room temperature, wash and dry the blended yarn after the second immersion modification, alternately wash the blended yarn after the first immersion modification 3 times with absolute ethanol and deionized water, and dry it at 50°C for 2 h, then it is ready.

[0045] The preparation method of the nanoemulsion containing bisdemethoxycurcumin and eucalyptol is as follows: first, under room temperature, bisdemethoxycurcumin is added to eucalyptol and mixed evenly to prepare an oil phase, the mass volume of bisdemethoxycurcumin and eucalyptol is 1g:10mL, 5% by volume of Tween 80 and 10% by volume of glycerol are mixed evenly, 10% by volume of the oil phase is added and mixed again, then 75% by volume of ultrapure water is slowly added dropwise to supplement the system, and a crude emulsion is obtained after sufficient mixing, and then, under ice bath conditions, the crude emulsion is placed in an ultrasonic cell disruptor, the power is set to 500W, and after ultrasonication for 8 minutes, the nanoemulsion containing bisdemethoxycurcumin and eucalyptol is obtained.

[0046] The blended yarn obtained by the above preparation is counted as blended yarn F, and the following comparison is set:

[0047] ① The difference between the preparation method of blended yarn F and that of blended yarn F is that the nanoemulsion used for secondary immersion modification is eucalyptus oil nanoemulsion, and the blended yarn prepared is counted as blended yarn G.

[0048] ② The difference from the preparation method of blended yarn F is that the nanoemulsion used for the secondary immersion modification is a nanoemulsion containing curcumin and eucalyptol, and the blended yarn prepared is counted as blended yarn H.

[0049] ③ The difference between the preparation method of blended yarn F and that of blended yarn F is that in the nanoemulsion containing bisdemethoxycurcumin and eucalyptol, the mass volume of bisdemethoxycurcumin and eucalyptol is 1 g:5 mL, and the prepared blended yarn is counted as blended yarn I.

[0050] ④ The difference from the preparation method of blended yarn F is that the order of the first immersion modification and the second immersion improvement is reversed, and the blended yarn prepared is counted as blended yarn J.

[0051] ⑤ The difference from the preparation method of blended yarn F is that the blended yarn is only modified by two soakings, and the blended yarn prepared is counted as blended yarn K.

[0052] The blended yarns B and FK were subjected to yarn softness characterization experiments. The yarn softness can be characterized by the bending stiffness index. The smaller the bending stiffness, the worse the yarn's ability to resist bending deformation, that is, the better the softness. The blended yarn of the present invention was tested for bending stiffness using a KES-FB2 tester. The test times were 20 for each type of yarn, and the average value was taken. The length of each yarn section was 15 cm, the test area was 1 cm, and the upper and lower ends were glued with tape. The width of the upper part of the sample was 3 cm. The test environment temperature was 22°C and the relative humidity was 65%. The software was opened to start the test, and the bending stiffness of the sample was calculated using the analysis software. The test results are shown in Table 2 below.

[0053] Table 2. Results statistics

[0054]

[0055] As can be seen from Table 2, after the first soaking modification and the second soaking modification, the bending stiffness of the bamboo / cotton blended yarn gradually decreases, and the softness of the blended yarn increases compared with that of blended yarn B. Comparing blended yarn F with blended yarn J, it can be seen that the order of the two soaking modification treatments affects the improvement of the softness of the blended yarn. Comparing blended yarn F with blended yarns H-I, it can be seen that the specific composition of the nanoemulsion for the second soaking modification also affects the softness of the final blended yarn. Comparing blended yarn F with blended yarn K, it can be seen that performing the first soaking modification with a mixed solution containing cercosporin, epichlorohydrin, and hydrochloric acid before the second soaking modification can reduce the intermolecular force of the fibers. During the modification process, the action of the solution makes the yarn become loose, improves the softness of the yarn, and increases the wearing performance.

[0056] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An ice-sense antibacterial blended yarn, characterized in that: The cool antibacterial blended yarn is obtained by firstly subjecting the blended yarn to a modification by soaking it once in a mixed solution containing cercosporin, epichlorohydrin and hydrochloric acid, and then subjecting the blended yarn to a modification by soaking it twice in a nano-emulsion containing bisdemethoxycurcumin and eucalyptol.

2. The ice-sense antibacterial blended yarn according to claim 1, characterized in that: The preparation method of the nanoemulsion containing bisdemethoxycurcumin and eucalyptol comprises the following steps: (1) at room temperature, bisdemethoxycurcumin was added to eucalyptol and mixed uniformly to prepare an oil phase, 5% by volume of Tween 80 and 10% by volume of glycerol were mixed uniformly, 10-15% by volume of the oil phase was added and mixed again, and then 70-75% by volume of ultrapure water was slowly added dropwise to make up the system, and a crude emulsion was obtained after sufficient mixing; (2) Under ice bath conditions, the crude emulsion is placed in an ultrasonic cell disruptor with a power set to 300-500 W. After ultrasonication for 8-12 min, a nanoemulsion containing bisdemethoxycurcumin and eucalyptol is obtained.

3. The ice-sense antibacterial blended yarn according to claim 2, characterized in that: The mass volume of the bisdemethoxycurcumin and eucalyptol is 1g:5-10mL.

4. The ice-sense antibacterial blended yarn according to claim 1, characterized in that: The blended yarn is bamboo / cotton blended yarn.

5. The ice-sense antibacterial blended yarn according to claim 1, characterized in that: The volume ratio of epichlorohydrin to hydrochloric acid is 1:2, the mass concentration of hydrochloric acid is 15-25wt%, and the concentration of cercosporin in the mixed solution is 1.0-2.0 mg / mL.

6. A method for preparing the ice-sense antibacterial blended yarn according to any one of claims 1 to 5, characterized in that: The following steps are involved: (1) immersing the blended yarn in a mixed solution containing cercosporin, epichlorohydrin and hydrochloric acid, stirring at 25° C. in the dark for 5-10 hours for a first immersion modification, and washing and drying the blended yarn after the first immersion modification; (2) The blended yarn is immersed in a nanoemulsion containing bisdemethoxycurcumin and eucalyptol, and immersed at 80° C. for 60-80 min for secondary immersion modification, and then cooled to room temperature, and the blended yarn after the secondary immersion modification is cleaned and dried to obtain the ice-sensing antibacterial blended yarn.

7. The method for preparing an ice-sense antibacterial blended yarn according to claim 6, characterized in that: In the first immersion modification, the bath ratio of the blended yarn to the mixed solution containing cercosporin, epichlorohydrin and hydrochloric acid is 1:25, and in the second immersion modification, the bath ratio of the blended yarn to the nanoemulsion containing bisdemethoxycurcumin and eucalyptol is 1:

30.

8. The method for preparing an ice-sense antibacterial blended yarn according to claim 6, characterized in that: Said In step (1) and step (2), the cleaning and drying are specifically performed by using anhydrous ethanol and deionized water to wash alternately 2-3 times. And dry at 40-50℃ for 2-4h.

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