Biological sunscreen, antibacterial and antioxidant wool blended fabric and preparation method thereof

Abstract

The invention relates to a biological sunscreen, antibacterial and antioxidant wool blended fabric and a preparation method thereof, and relates to the technical field of textile, raw materials comprise wool fibers and nylon fibers, and the wool blended fabric is obtained by spinning, weaving, singeing treatment, desizing treatment, functional treatment liquid finishing and post-treatment of the wool fibers and the nylon fibers. According to the invention, the isooctyl salicylate and the hydroxyalizarin are added into the functional finishing liquid, and the isooctyl salicylate can absorb ultraviolet rays to improve the sunscreen property of the fabric treated by the functional finishing liquid; meanwhile, the natural anthraquinone compound-hydroxyalizarin and the microbial metabolite-hyaluronic acid are matched with one another, so that the anti-ultraviolet and sunscreen durability of the fabric is further improved, and the antibacterial and anti-oxidative yellowing capacities of the fabric are also improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of textiles, and particularly relates to a wool blended fabric with biological sun protection, antibacterial and antioxidant properties and a preparation method thereof. Background Art

[0002] Wool fiber is an important raw material in the textile industry, with excellent properties such as good hygroscopicity, warmth and comfort, and soft hand feeling. However, due to its high production cost, wool fiber is often blended with other textile fibers to obtain blended fabrics.

[0003] On the one hand, the microporous structure and keratin components in wool fiber provide moisture and nutrients for the growth of bacteria, resulting in poor antibacterial performance. On the other hand, ultraviolet rays in sunlight can cause photolysis of proteins in wool to produce yellow substances, resulting in relatively weak anti-yellowing performance. In addition, wool blended fabrics are also easily affected by factors such as oxygen, light, and heat in the environment during use, leading to problems such as fiber degradation and color change. The improvement of fabric antioxidant properties can effectively delay these aging phenomena and extend the service life of the fabric. Therefore, in the current production practice of wool blended fabrics, in addition to ensuring wearing comfort, more attention is paid to the improvement of its antibacterial, sun protection, anti-yellowing and antioxidant properties.

[0004] At present, the improvement of fabric functions mainly adopts post-finishing processes, that is, by loading various functional finishing agents to endow the fabric with special functions. The selection and optimization of the components of functional finishing agents are of great significance for improving the fabric functionality. Based on this, the present invention proposes a wool blended fabric with biological sun protection, antibacterial and antioxidant properties and a preparation method thereof. Summary of the Invention

[0005] The purpose of the present invention is to provide a wool blended fabric with biological sun protection, antibacterial and antioxidant properties 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 a wool blended fabric with biological sun protection, antibacterial and antioxidant properties. The raw materials include wool fiber and nylon fiber. The wool blended fabric is obtained by spinning, weaving, singeing, desizing, functional treatment liquid finishing and post-treatment of the wool fiber and nylon fiber; the raw materials of the functional treatment liquid include the following components in parts by weight: 12-16 parts of phosphoric acid ester betaine, 8-12 parts of isooctyl salicylate, 6-10 parts of hydroxyalizarin, 10-16 parts of waterborne polyurethane, 2-6 parts of hyaluronic acid, 2-4 parts of penetrant, 1-3 parts of defoamer, 1-3 parts of thickener, 50-60 parts of ethanol and 200-300 parts of water.

[0008] As a further optimization solution of the present invention, the weight percentage of the wool fiber to the nylon fiber is: 50 - 90% of the wool fiber and 10 - 50% of the nylon fiber.

[0009] As a further optimization solution of the present invention, the preparation method of the functional finishing liquid is as follows: Add 12 - 16 parts of phosphate betaine, 10 - 16 parts of waterborne polyurethane, and 2 - 4 parts of penetrant into 200 - 300 parts of water, stir evenly, then add 8 - 12 parts of isooctyl salicylate, 6 - 10 parts of purpurin, 2 - 6 parts of hyaluronic acid, and 50 - 60 parts of ethanol. After continuing to stir evenly, add 1 - 3 parts of defoamer and 1 - 3 parts of thickener, and raise the temperature for stirring to obtain the functional finishing liquid.

[0010] As a further optimization solution of the present invention, the penetrant is N - methyl - 2 - pyrrolidone, the defoamer is mineral oil, and the thickener is hydroxymethyl cellulose.

[0011] As the second aspect of the present invention, there is also provided a preparation method of a bio - sun - protection, antibacterial, and antioxidant wool blended fabric as described in any one of the above, which specifically includes the following steps:

[0012] (1) Spin the wool fiber and the nylon fiber to obtain a blended yarn, and then obtain a wool blended grey fabric through weaving;

[0013] (2) Singe the wool blended grey fabric using a singeing machine;

[0014] (3) Immerse the wool blended grey fabric in an enzyme treatment liquid for desizing treatment, and after treatment, perform hot washing and drying to obtain a desized wool blended grey fabric;

[0015] (4) Immerse the desized wool blended grey fabric in the functional finishing liquid for treatment, and after treatment, perform hot washing and drying to obtain a functionally treated wool blended grey fabric;

[0016] (5) Wrap the functionally treated wool blended grey fabric with leading cloth and perform decating on an open - type decating machine. After decating is completed, obtain the wool blended fabric.

[0017] As a further optimization solution of the present invention, the enzyme treatment liquid includes 45 - 55% of neutral protease, 30 - 40% of lipase, and 5 - 25% of amylase.

[0018] As a further optimization solution of the present invention, the bath ratio of the wool blended grey fabric to the enzyme treatment liquid is 1:15 - 25, and the bath ratio of the wool blended grey fabric to the functional finishing liquid is 1:20 - 30.

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

[0020] In the present invention, isooctyl salicylate and purpurin are added to the functional finishing liquid. Isooctyl salicylate can absorb ultraviolet rays to improve the sun protection of the fabric treated with the functional finishing liquid. At the same time, in cooperation with the natural anthraquinone compound - purpurin and the microbial metabolite - hyaluronic acid, while further improving the anti-ultraviolet and sun protection durability of the fabric, the yellowing resistance of the fabric is also improved.

[0021] In addition, purpurin is a natural anthraquinone compound, which can generate reactive oxygen groups under light and has strong antibacterial effects. The antibacterial rate of the wool blended fabric obtained by treatment with the functional finishing liquid against Escherichia coli can reach over 99% after 0 times of washing, and the inhibition rate against Staphylococcus aureus can reach over 97%. Moreover, the antibacterial durability is good, and the antibacterial rates against Escherichia coli and Staphylococcus aureus can reach about 90% after 10 times of washing, endowing the fabric with better antibacterial properties. Detailed implementation manners

[0022] The following further describes the present application in detail. It is necessary to point out here that the following specific implementation manners 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.

[0023] For the methods not specified in the following examples, they can all be carried out according to conventional methods. The materials, reagents, etc. used, unless otherwise specified, can all be obtained through commercial channels.

[0024] Example 1

[0025] This example provides a wool blended fabric with biological sun protection, antibacterial and antioxidant properties. The raw materials, calculated by mass percentage, include 50% wool fiber and 50% nylon fiber. The preparation method of this wool blended fabric includes the following steps:

[0026] (1) The wool fiber and nylon fiber are spun into a blended yarn, and then a wool blended grey fabric is obtained through weaving;

[0027] (2) The wool blended grey fabric is singed using a singeing machine;

[0028] (3) The wool blended grey fabric is immersed in an enzyme treatment liquid for desizing treatment, with a liquor ratio of 1:15. After treatment, it is hot-washed and dried to obtain a desized wool blended grey fabric. The enzyme treatment liquid includes 45% neutral protease, 30% lipase, and 25% amylase;

[0029] (4) The desized wool blended grey fabric is impregnated in a functional finishing liquid for treatment, with a liquor ratio of 1:20. After treatment, it is hot-washed and dried to obtain a functionally treated wool blended grey fabric;

[0030] Among them, the preparation method of the functional finishing liquid is as follows: add 12 parts of phosphoric acid ester betaine, 16 parts of waterborne polyurethane, and 2 parts of penetrant into 300 parts of water, stir evenly, add 8 parts of isooctyl salicylate, 10 parts of purpurin, 2 parts of hyaluronic acid, and 60 parts of ethanol, continue to stir evenly, then add 1 part of defoamer and 3 parts of thickener, heat up and stir to obtain the functional finishing liquid. The penetrant is N-methyl-2-pyrrolidone, the defoamer is mineral oil, and the thickener is hydroxymethyl cellulose;

[0031] (5) Wrap the wool blended grey fabric after functional treatment with leading cloth, and carry out decating on an open decating machine. After decating, a wool blended fabric is obtained. The running speed of the fabric is 25 m / min, the steam pressure in the open decating machine is 1.8 bar, the temperature is 90 °C, and the decating time is 20 min.

[0032] Example 2

[0033] For the wool blended fabric with biological sun protection, antibacterial and antioxidant provided in this example, the raw materials are calculated by mass percentage, including 70% of wool fiber and 30% of nylon fiber. The preparation method of this wool blended fabric includes the following steps:

[0034] (1) Spin the wool fiber and nylon fiber to obtain a blended yarn, and then weave it to obtain a wool blended grey fabric;

[0035] (2) Singe the wool blended grey fabric using a singeing machine;

[0036] (3) Immerse the wool blended grey fabric in an enzyme treatment liquid for desizing treatment, with a liquor ratio of 1:25. After treatment, carry out hot washing and drying to obtain the desized wool blended grey fabric. The enzyme treatment liquid includes 45% of neutral protease, 30% of lipase, and 25% of amylase;

[0037] (4) Immerse the desized wool blended grey fabric in the functional finishing liquid for treatment, with a liquor ratio of 1:30. After treatment, carry out hot washing and drying to obtain the wool blended grey fabric after functional treatment;

[0038] Among them, the preparation method of the functional finishing liquid is as follows: add 16 parts of phosphoric acid ester betaine, 10 parts of waterborne polyurethane, and 4 parts of penetrant into 200 parts of water, stir evenly, add 12 parts of isooctyl salicylate, 6 parts of purpurin, 6 parts of hyaluronic acid, and 50 parts of ethanol, continue to stir evenly, then add 3 parts of defoamer and 1 part of thickener, heat up and stir to obtain the functional finishing liquid. The penetrant is N-methyl-2-pyrrolidone, the defoamer is mineral oil, and the thickener is hydroxymethyl cellulose;

[0039] (5) The same as Example 1.

[0040] Example 3

[0041] The difference from Example 1 is only that for the wool blended fabric with biological sun protection, antibacterial and antioxidant properties provided in this example, the raw materials, by mass percentage, include 90% wool fiber and 10% nylon fiber. During the preparation process, the functional finishing solution used includes the following components in parts by weight: 14 parts of phosphobetaine, 10 parts of isooctyl salicylate, 8 parts of purpurin, 13 parts of aqueous polyurethane, 4 parts of hyaluronic acid, 3 parts of penetrant, 2 parts of defoamer, 2 parts of thickener, 55 parts of ethanol, and 250 parts of water. The penetrant is N-methyl-2-pyrrolidone, the defoamer is mineral oil, and the thickener is hydroxymethyl cellulose. The preparation method of the functional finishing solution is the same as that in Example 1.

[0042] Verification test

[0043] To explore the influence of the composition of the functional finishing solution on the properties of the prepared wool blended fabric, the composition of the functional finishing solution was adjusted according to Table 1. The preparation method of the functional finishing solution is the same as that in Example 1.

[0044] Table 1. Design of the composition of the functional finishing solution

[0045]

[0046]

[0047] Functional finishing solutions A-1 to A-6 were prepared according to the composition of the functional finishing solution given in Table 1. On the basis of the preparation method of the wool blended fabric disclosed in Example 1, the wool blended fabrics A-1 to A-6 were respectively treated with the functional finishing solutions A-1 to A-6, and the wool blended fabric obtained without treatment with the functional finishing solution was used as the control group.

[0048] First, the anti-ultraviolet performance and anti-yellowing performance of the wool blended fabrics A-1 to A-6 were detected. The specific detection process is as follows:

[0049] (1) According to GB / T18830-2009 "Evaluation of anti-ultraviolet performance of textiles", a YG(B)912E type textile anti-ultraviolet performance tester was used, and the sun protection factor UPF and the average transmittance of ultraviolet A, T(UVA) AV were used as the evaluation indexes for characterization;

[0050] (2) Anti-yellowing performance test: The whiteness of 8 random points on each part of the specimen was measured using a colorimeter in the whiteness value measurement state, and the average value was taken and recorded as the initial whiteness; after conventional washing and aging for 10 h in an ultraviolet aging instrument, repeated 10 times, with a D65 light source, the whiteness of 8 random points on each part of the specimen was measured using a colorimeter in the whiteness value measurement state, and the average value was taken and recorded as the test whiteness. The numerical difference between the test whiteness and the initial whiteness was calculated.

[0051] The results are shown in Table 2.

[0052] Table 2. Statistical Table of Results

[0053]

[0054]

[0055] As can be seen from Table 2, in terms of the results of the anti-ultraviolet performance test, compared with the wool blended fabric obtained by the control group without treatment with the functional finishing liquid, the anti-ultraviolet ability of wool blended fabrics A-1 to A-6 has been improved. After 50 washes, they still maintain good anti-ultraviolet ability, promoting the improvement of the fabric's sun protection ability. Comparing A-1 and A-2, both of their UPF values reach 50+, and the average transmittance of ultraviolet A of A-2 after 50 washes is lower than that of A-1. Comparing A-1 and A-4, similarly, the average transmittance of ultraviolet A of A-2 after 50 washes is lower than that of A-1. It can be seen that the use of isooctyl salicylate and purpurin in the functional finishing liquid can improve the durability of the anti-ultraviolet ability. Comparing A-5 with A-1, it can be seen that the effect of methyl salicylate in improving the anti-ultraviolet ability of the fabric is less than that of isooctyl salicylate.

[0056] In terms of the anti-yellowing performance test, compared with the wool blended fabric obtained by the control group without treatment with the functional finishing liquid, the anti-yellowing ability of wool blended fabrics A-1 to A-6 has been improved. On the one hand, because wool blended fabrics A-1 to A-6 have a low ultraviolet light transmittance. On the other hand, the antioxidant ability of the wool blended fabric after being treated with the functional finishing liquid has been improved, promoting the fabric to obtain better anti-yellowing performance.

[0057] Secondly, antibacterial experiments were carried out on wool blended fabrics A-1 to A-6 respectively. The specific antibacterial experiment method is as follows: According to GB / T 20944.1-2007 "Evaluation of Antibacterial Properties of Textiles - Part 1: Agar Plate Diffusion Method", qualitative detection of the fabric was carried out by the agar diffusion method. According to GB / T 20944.3-2008 "Evaluation of Antibacterial Properties of Textiles - Part 3: Oscillation Method", the quantitative antibacterial properties of the fabric were measured. The bacterial strains were Staphylococcus aureus and Escherichia coli. The qualitative detection results of the samples were represented by the inhibition zone, and the quantitative antibacterial activity was represented by the inhibition rate. It was calculated according to the formula: Inhibition rate = (1 - b / a) × 100%, where a is the number of viable bacteria on the untreated fabric; b is the number of viable bacteria on the treated fabric. The test fabrics were washed by the standard washing method of the color fastness to washing tester according to GB / T20944.1-2007, and the antibacterial properties of the initial samples and the samples after washing 10 times were tested. The test results are shown in Table 3.

[0058] Table 3. Statistical Table of Results

[0059] Table 3. Statistical Table of Results

[0060]

[0061]

[0062] As can be seen from Table 3, the addition of purpurin in the functional finishing liquid is a natural anthraquinone compound. The anthraquinone structure generates free radicals under light, which react with oxygen molecules in the air to form bactericidal hydroxyl radicals, singlet oxygen molecules and peroxides, collectively referred to as reactive oxygen species. These reactive oxygen species have strong bactericidal properties under light conditions. The effects of inhibiting Escherichia coli of wool blended fabrics A-1, A-3 and A-4 when washed 0 times can reach over 99%, and the effects of inhibiting Staphylococcus aureus can reach over 97%. After washing 10 times, only the wool blended fabric A-1 can reach about 90% in inhibiting Escherichia coli and Staphylococcus aureus. However, the effects of inhibiting Escherichia coli and Staphylococcus aureus of wool blended fabrics A-1, A-3 and A-4 are all better than those of the control group. It can be seen that treating wool blended fabrics with the functional finishing liquid helps to improve the antibacterial properties of the fabrics.

[0063] This embodiment only represents several implementation manners of the present invention, and its description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the invention patent. 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. A biological sun-proof, antibacterial and antioxidant wool blended fabric, characterized in that: The raw materials include wool fibers and nylon fibers. The wool fibers and nylon fibers are spun, weaved, singed, desized, finished with functional treatment liquid and post-treated to obtain a wool blended fabric. The raw materials of the functional finishing liquid include the following components in parts by weight: 12-16 parts of phosphate betaine, 8-12 parts of isooctyl salicylate, 6-10 parts of hydroxyrubiacin, 10-16 parts of water-based polyurethane, 2-6 parts of hyaluronic acid, 2-4 parts of penetrant, 1-3 parts of defoamer, 1-3 parts of thickener, 50-60 parts of ethanol and 200-300 parts of water.

2. The biological sun-proof, antibacterial and antioxidant wool blended fabric according to claim 1, characterized in that: The weight percentage of the wool fiber and the nylon fiber is: 50-90% of the wool fiber and 10-50% of the nylon fiber.

3. The biological sun-proof, antibacterial and antioxidant wool blended fabric according to claim 1, characterized in that: The preparation method of the functional finishing liquid comprises the following steps: adding 12-16 parts of phosphate betaine, 10-16 parts of waterborne polyurethane and 2-4 parts of penetrant into 200-300 parts of water, stirring evenly, adding 8-12 parts of isooctyl salicylate, 6-10 parts of hydroxyrubiacin, 2-6 parts of hyaluronic acid and 50-60 parts of ethanol, stirring evenly, adding 1-3 parts of defoamer and 1-3 parts of thickener, heating and stirring to obtain the functional finishing liquid.

4. The biological sun-proof, antibacterial and antioxidant wool blended fabric according to claim 1, characterized in that: The penetrant is N-methyl-2-pyrrolidone, the defoamer is mineral oil, and the thickener is hydroxymethyl cellulose.

5. A method for preparing the biological sun-proof, antibacterial and antioxidant wool blended fabric according to any one of claims 1 to 4, characterized in that: The specific steps include: (1) spinning wool fibers and nylon fibers to obtain blended yarns, and then weaving to obtain wool blended grey fabrics; (2) singeing the wool blended grey fabric using a singeing machine; (3) immersing the wool blended grey fabric in an enzyme treatment solution for desizing treatment, and then performing heat washing and drying to obtain the desizing wool blended grey fabric; (4) immersing the desizing wool blended grey fabric in a functional finishing liquid for treatment, and then hot-washing and drying the desizing wool blended grey fabric to obtain a functionally treated wool blended grey fabric; (5) Wrapping the wool blended grey fabric after functional treatment with a guide cloth, steaming it on an open steaming equipment, and obtaining the wool blended fabric after steaming.

6. The method for preparing a biological sun-proof, antibacterial and antioxidant wool blended fabric according to claim 5, characterized in that: The enzyme treatment solution comprises 45-55% of neutral protease, 30-40% of lipase and 5-25% of amylase.

7. The method for preparing a biological sun-proof, antibacterial and antioxidant wool blended fabric according to claim 5, characterized in that: The bath ratio of the wool blended grey fabric to the enzyme treatment solution is 1:15-25, and the bath ratio of the wool blended grey fabric to the functional finishing solution is 1:20-30.

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