Suit with cuff stain prevention and preparation method thereof

Abstract

The present invention relates to a cuff-proof suit and a preparation method thereof. The suit comprises a suit body and an antifouling fabric sewn at the cuff position of the suit body. The raw materials for preparing the antifouling fabric include, by weight, 34-42 parts of polyamide, 8-12 parts of terephthalic acid, 6-10 parts of ethylene glycol ester, 10-15 parts of Spartina alterniflora extract, 15-19 parts of loquat leaf extract, 10-13 parts of nano-titanium dioxide, and 3-4 parts of silane coupling agent. The invention adds loquat leaf extract and Spartina alterniflora extract to a mixture of polyamide, terephthalic acid, and ethylene glycol ester. Through the combined use of loquat leaf extract and Spartina alterniflora extract, the two extracts synergize with each other, thereby significantly improving the antioxidant effect and corrosion resistance of the antifouling fabric, and will not affect the antifouling effect of the antifouling fabric.

Description

Technical Field

[0001] The invention belongs to the technical field of clothing, and particularly relates to a suit with anti-cuff contamination function and a preparation method thereof. Background Art

[0002] Polyamide fabric, also known as nylon or polyamide, has good elasticity and recovery, which can keep the suit crisp and fit. Compared with traditional wool fabric, polyamide fabric is lighter, easier to carry and store, easier to care for, and not prone to wrinkling or deformation, providing more convenience for the wearer.

[0003] In the existing technology, polyamide fabrics have poor waterproof and anti-fouling effects. When polyamide fabrics are sewn on the cuffs of suits, they are easily stained. In order to improve the anti-fouling effect of polyamide fabrics, nano-titanium dioxide (TiO2) and silane coupling agents can generally be used in combination. The "bridge" effect of the silane coupling agent can enhance the bonding force between nano-titanium dioxide and the fabric, thereby continuously exerting the photocatalytic anti-fouling effect of nano-titanium dioxide. However, the light resistance of polyamide fabrics is slightly poor. Under the photocatalytic anti-fouling mechanism of nano-titanium dioxide, it is easy to oxidize and yellow, thereby shortening the service life of the fabric. Summary of the Invention

[0004] The purpose of the present invention is to provide a suit with cuff stain resistance and a preparation method thereof in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A suit with anti-cuff staining, comprising a suit body and an anti-staining fabric sewn at the cuffs of the suit body, wherein the raw materials for preparing the anti-staining fabric include, by weight, 34-42 parts of polyamide, 8-12 parts of terephthalic acid, 6-10 parts of ethylene glycol ester, 10-15 parts of Spartina alterniflora extract, 15-19 parts of loquat leaf extract, 10-13 parts of nano-titanium dioxide, and 3-4 parts of a silane coupling agent;

[0007] The Spartina alterniflora extract and loquat leaf extract are respectively obtained from fresh Spartina alterniflora stems and leaves and loquat leaves as raw materials, and are sequentially washed, dried, crushed, extracted, filtered and concentrated.

[0008] As a further optimized solution of the present invention, the extraction uses an ethanol solution with a mass concentration of 60%-80%.

[0009] A method for preparing a suit that prevents cuff contamination, comprising the following specific steps:

[0010] Step 1: preparing electrospun fibers, melting and uniformly mixing polyamide, terephthalic acid, and ethylene glycol ester in proportion, adding Spartina alterniflora extract and loquat leaf extract dropwise, mixing, and then preparing electrospun fibers by electrospinning technology;

[0011] Step 2: preparing a soaking liquid, uniformly mixing nano-titanium dioxide and a silane coupling agent in proportion to obtain a soaking mixture, and mixing the soaking mixture with water to obtain a soaking liquid;

[0012] Step 3: soaking the electrospun fiber obtained in step 1 in the soaking solution obtained in step 2, and performing intermittent ultrasonic treatment. After the soaking is completed, drying is performed to obtain the antifouling fiber;

[0013] Step 4: Use anti-fouling fibers as warp and weft threads to weave an anti-fouling fabric, and sew the anti-fouling fabric to the cuffs of a suit to obtain an anti-cuff-fouling suit.

[0014] As a further optimization scheme of the present invention, the method for obtaining the Spartina alterniflora extract and loquat leaf extract is as follows: the harvested fresh stems and leaves of Spartina alterniflora or loquat leaves are cleaned with distilled water, dried at 50°C-60°C for 6-8 hours, cut and crushed into powder, and extracted with ethanol solution at 70°C-80°C for 2-3 hours. The obtained extract is filtered and concentrated to obtain the Spartina alterniflora extract or loquat leaf extract.

[0015] As a further optimized solution of the present invention, in step 2, the mass ratio of the soaking mixture to water is 1:6-10.

[0016] As a further optimization solution of the present invention, in step three, the soaking temperature is 35°C-40°C, and the soaking time is 30h-36h.

[0017] As a further optimization scheme of the present invention, in step three, the first ultrasonic treatment is carried out after soaking for 1 hour, and then ultrasonic treatment is carried out every 2 hours. The time of each ultrasonic treatment is 7-10 minutes, the frequency of ultrasonic treatment is 15-20kHz, and the ultrasonic power is 30-50W.

[0018] As a further optimization solution of the present invention, in step 4, the linear density of the warp yarn of the anti-fouling fabric is 37-46 tex, and the linear density of the weft yarn is 26-37 tex.

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

[0020] 1) The present invention adds loquat leaf extract and Spartina alterniflora extract to a mixture of polyamide, terephthalic acid, and ethylene glycol ester. The combination of loquat leaf extract and Spartina alterniflora extract synergizes with each other, thereby significantly improving the antioxidant effect and corrosion resistance of the antifouling fabric without affecting the antifouling effect of the antifouling fabric.

[0021] 2) The present invention combines nano-titanium dioxide with a silane coupling agent to enhance the bonding force between the nano-titanium dioxide and the electrospun fibers through the silane coupling agent, thereby improving the antifouling effect of the antifouling fabric;

[0022] 3) The present invention obtains a suit with anti-staining cuffs by sewing anti-staining fabrics on the cuffs of the suit body, making the cuffs of the suit less likely to be stained, bringing convenience to the user. DETAILED DESCRIPTION

[0023] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] 1. Materials

[0025] 1. The tea polyphenols used in this application were purchased from Hebei Tuohai Biotechnology Co., Ltd.

[0026] Unless otherwise specified, the methods used in this example are conventional methods known to those skilled in the art, and the reagents and other materials used are commercially available products unless otherwise specified.

[0027] 2. Methods

[0028] A suit with anti-cuff staining, comprising a suit body and an anti-staining fabric sewn at the cuffs of the suit body, wherein the raw materials for preparing the anti-staining fabric include, by weight, 34-42 parts of polyamide, 8-12 parts of terephthalic acid, 6-10 parts of ethylene glycol ester, 10-15 parts of Spartina alterniflora extract, 15-19 parts of loquat leaf extract, 10-13 parts of nano-titanium dioxide, and 3-4 parts of a silane coupling agent;

[0029] The method for obtaining the Spartina alterniflora extract comprises: washing the freshly harvested stems and leaves of Spartina alterniflora with distilled water, drying them at 50° C.-60° C. for 6-8 hours, cutting and crushing them into powder, extracting them with a 75% ethanol solution at 70° C.-80° C. for 2-3 hours, and filtering and concentrating the obtained extract to obtain the Spartina alterniflora extract;

[0030] The loquat leaf extract is obtained by washing the harvested loquat leaves with distilled water, drying them at 50-60°C for 6-8 hours, cutting and crushing them into powder, and extracting them with a 65% ethanol solution at 70-80°C for 2-3 hours. The obtained extract is filtered and concentrated to obtain the loquat leaf extract.

[0031] A method for preparing a suit that prevents cuff contamination, comprising the following specific steps:

[0032] Step 1: preparing electrospun fibers, melting and uniformly mixing polyamide, terephthalic acid, and ethylene glycol ester in proportion, adding Spartina alterniflora extract and loquat leaf extract dropwise, mixing, and then preparing electrospun fibers by electrospinning technology;

[0033] Step 2: preparing a soaking liquid, uniformly mixing nano-titanium dioxide and a silane coupling agent in proportion to obtain a soaking mixture, and mixing the soaking mixture with water to obtain a soaking liquid;

[0034] The mass ratio of the soaking mixture to water is 1:6-10;

[0035] Step 3: soaking the electrospun fiber obtained in step 1 in the soaking solution obtained in step 2, and performing intermittent ultrasonic treatment. After the soaking is completed, drying is performed to obtain the antifouling fiber;

[0036] The soaking temperature is 35-40°C, and the soaking time is 30-36 hours;

[0037] The first ultrasonic treatment was carried out after soaking for 1 hour, and then ultrasonic treatment was carried out every 2 hours. The time of each ultrasonic treatment was 7-10 minutes, the frequency of ultrasonic treatment was 15-20kHz, and the ultrasonic power was 30-50W.

[0038] Step 4: Weaving anti-fouling fabric using anti-fouling fibers as warp and weft, and sewing the anti-fouling fabric to the cuffs of the suit to obtain an anti-cuff stain suit;

[0039] The linear density of the warp yarn of the antifouling fabric is 37-46 tex, and the linear density of the weft yarn is 26-37 tex.

[0040] In order to explore the differences in antifouling effect, antioxidant effect, and corrosion resistance of antifouling fabrics prepared with different component formulas, the following Examples 1-3 were designed. The specific formulas of each component are shown in Table 1:

[0041] Table 1 Record of the formula of each component of Examples 1-3

[0042]

[0043]

[0044] In the above examples 1-3, the method for obtaining the Spartina alterniflora extract is to clean the stems and leaves of fresh Spartina alterniflora harvested with distilled water, dry them at 54°C ± 2°C for 7h, cut and crush them into powder, extract them with 75% ethanol solution at 75°C ± 2°C for 3h, and filter and concentrate the obtained extract to obtain the Spartina alterniflora extract;

[0045] The loquat leaf extract is obtained by washing the harvested loquat leaves with distilled water, drying them at 56°C ± 2°C for 6 hours, cutting and crushing them into powder, and extracting them with a 65% ethanol solution at 73°C ± 2°C for 2 hours. The obtained extract is filtered and concentrated to obtain the loquat leaf extract.

[0046] Wherein, in step 2, the mass ratio of the soaking mixture to water is 1:8;

[0047] In step 3, the immersion temperature is 38°C ± 2°C, the immersion time is 34 hours, the first ultrasonic treatment is performed after 1 hour of immersion, and then the ultrasonic treatment is performed every 2 hours. The time of each ultrasonic treatment is 8 minutes, the frequency of the ultrasonic treatment is 18 kHz, and the ultrasonic power is 35 W;

[0048] In step 4, the linear density of the warp yarn of the antifouling fabric is 42tex, and the linear density of the weft yarn is 30tex.

[0049] The antifouling effect test is specifically based on GB / T30159.1-2013 "Test and evaluation of the antifouling properties of textiles Part 1: Stain resistance". A 20cm×20cm sample of antifouling fabric is tested using the liquid stain method. The specific process is as follows: Place two layers of filter paper on a smooth horizontal surface, and place the sample face up flat on the filter paper. Use a dropper to drop approximately 0.05mL of soy sauce liquid on each of the three parts of the sample, with the dropper tip at least 50mm apart and about 6mm from the sample surface. After the sample is left to stand for 30 seconds, each drop is observed at a 45-degree angle for rating. The rating standard is shown in Table 2 below:

[0050] Table 2 Contamination level evaluation standards

[0051] Contamination level Contamination status description Level 5 The droplet is clear and has a good arc shape with a large contact angle. The droplet does not wet the contact surface of the sample. Level 4 The surface of the droplet in contact with the sample is partially or completely darkened, and about three-quarters of the liquid volume remains on the sample surface. Level 3 The surface of the droplet in contact with the sample is partially or completely darkened, and about half of the liquid remains on the surface of the sample. Level 2 The surface of the droplet in contact with the sample is partially or completely darkened, and about a quarter of the liquid volume remains on the sample surface. Level 1 The droplet disappears on the surface of the sample and all of it is wetted

[0052] The antioxidant effect test is specifically carried out by using the ABTS free radical decolorization method. First, ABTS is dissolved in water and prepared into a solution with a concentration of 7mM. The prepared ABTS solution is then reacted with a potassium persulfate solution with a final concentration of 2.45mM to obtain ABTS free radical cations (ABTS·+). The mixed solution is then placed in a dark room for 10 to 14 hours for use. The free radical remains stable for more than two days at room temperature in a dark room. Before use, the ABTS·+ solution is diluted with phosphate buffer solution (0.1M, pH 7.4) to an absorbance value at 734nm within the range of 0.700±0.025. 10mg of the test sample is added to 10mL of ABTS·+ solution. After 80min, the absorbance value of ABTS·+ is tested again. A2 is the absorbance value of ABTS·+ at the initial time, and A1 is the absorbance value of ABTS·+ after the test sample is immersed for 80min. The antioxidant activity calculation formula is as follows;

[0053] Antioxidant activity = (A2 - A1) / A2 x 100 (%).

[0054] The corrosion resistance test is as follows: a 20cm×20cm antifouling fabric sample is immersed in an acidic environment (hydrochloric acid solution) with a pH of 3 and an alkaline environment (NaOH solution) with a pH of 8.5 for 72 hours, and then the corrosion rate of the fabric is measured and calculated. The corrosion rate calculation formula is as follows:

[0055] Corrosion rate = corrosion area / total area × 100%.

[0056] Table 3 Statistical table of antifouling, anti-oxidation and corrosion resistance test data of antifouling fabrics of Examples 1-3

[0057]

[0058] Note: The above data have been verified by variance.

[0059] Experimental conclusion: It can be seen from the data in Table 3 that in Examples 1-3, the anti-fouling, antioxidant and corrosion-resistant effects of the anti-fouling fabrics prepared according to the component formula and method of Example 2 are slightly higher than those of Examples 1 and 3. This shows that Example 2 is the optimal technical solution.

[0060] In order to explore the effects of the use of Spartina alterniflora extract and loquat leaf extract on the antifouling, antioxidant and corrosion resistance of antifouling fabrics, we further designed the following comparative examples 1-5 and a blank group, wherein the blank group was replaced with Spartina alterniflora extract and loquat leaf extract by equal mass of distilled water, and the rest were consistent with Example 2, and the technical solutions of comparative examples 1-5 are as follows:

[0061] Comparative Example 1

[0062] In this comparative example, a suit with anti-cuff staining includes a suit body and an anti-staining fabric sewn at the cuff position of the suit body. The raw materials for preparing the anti-staining fabric include, by weight, 42 parts of polyamide, 10 parts of terephthalic acid, 6 parts of ethylene glycol ester, 29 parts of loquat leaf extract, 10 parts of nano-titanium dioxide, and 3 parts of silane coupling agent.

[0063] That is, in this comparative example, the loquat leaf extract was used to replace the Spartina alterniflora extract with an equal mass;

[0064] The rest are consistent with Example 2.

[0065] Comparative Example 2

[0066] In this comparative example, a suit with anti-cuff staining includes a suit body and an anti-fouling fabric sewn at the cuff position of the suit body. The raw materials for preparing the anti-fouling fabric include, by weight, 42 parts of polyamide, 10 parts of terephthalic acid, 6 parts of ethylene glycol ester, 29 parts of Spartina alterniflora extract, 10 parts of nano-titanium dioxide, and 3 parts of silane coupling agent.

[0067] That is, in this comparative example, the loquat leaf extract was replaced with an equal mass of the Spartina alterniflora extract;

[0068] The rest are consistent with Example 2.

[0069] Comparative Example 3

[0070] In this comparative example, a suit with anti-cuff staining includes a suit body and an anti-staining fabric sewn at the cuff position of the suit body. The raw materials for preparing the anti-staining fabric include, by weight, 42 parts of polyamide, 10 parts of terephthalic acid, 6 parts of ethylene glycol ester, 12 parts of tea polyphenols, 17 parts of loquat leaf extract, 10 parts of nano-titanium dioxide, and 3 parts of silane coupling agent.

[0071] That is, in this comparative example, the Spartina alterniflora extract was replaced with tea polyphenols of equal mass (purchased from Hebei Tuohai Biotechnology Co., Ltd.);

[0072] The rest are consistent with Example 2.

[0073] Comparative Example 4

[0074] In this comparative example, a suit with anti-cuff staining includes a suit body and an anti-fouling fabric sewn at the cuff position of the suit body. The raw materials for preparing the anti-fouling fabric include, by weight, 32 parts of polyamide, 10 parts of terephthalic acid, 6 parts of ethylene glycol ester, 12 parts of Spartina alterniflora extract, 17 parts of tea polyphenols, 10 parts of nano-titanium dioxide, and 3 parts of silane coupling agent.

[0075] That is, in this comparative example, loquat leaf extract was replaced with tea polyphenols of equal mass (purchased from Hebei Tuohai Biotechnology Co., Ltd.);

[0076] The rest are consistent with Example 2.

[0077] Comparative Example 5

[0078] In this comparative example, a cuff-resistant suit comprises a suit body and an anti-fouling fabric sewn at the cuff position of the suit body. The raw materials for preparing the anti-fouling fabric include, by weight, 32 parts of polyamide, 10 parts of terephthalic acid, 6 parts of ethylene glycol ester, 29 parts of tea polyphenols, 10 parts of nano-titanium dioxide, and 3 parts of silane coupling agent.

[0079] That is, in this comparative example, the Spartina alterniflora extract and the loquat leaf extract were replaced with tea polyphenols of equal mass (purchased from Hebei Takuhai Biotechnology Co., Ltd.);

[0080] The rest are consistent with Example 2.

[0081] According to the antifouling, anti-oxidation and corrosion resistance test methods of the antifouling fabrics of Examples 1-3 above, the antifouling fabrics of the blank group and comparative examples 1-5 were tested. The test results are shown in Table 4:

[0082] Table 4 Statistical table of antifouling, antioxidation and corrosion resistance test data of antifouling fabrics of Example 2, blank group and comparative examples 1-5

[0083]

[0084]

[0085]

[0086] Note: The above data have been verified by variance.

[0087] Experimental conclusion: According to the data of Example 2 and the blank group in Table 4, the use of Spartina alterniflora extract and loquat leaf extract can significantly improve the antioxidant effect and corrosion resistance of the antifouling fabric, and has no effect on the antifouling effect of the antifouling fabric;

[0088] According to the data of Example 2 and Comparative Examples 1 and 2 in Table 4, it can be seen that Comparative Examples 1 and 2 respectively use loquat leaf extract and Spartina alterniflora extract alone. Although both can slightly improve the antioxidant effect and corrosion resistance of the antifouling fabric when used alone, and will not affect the antifouling effect of the antifouling fabric, the improvement in the antioxidant effect and corrosion resistance of the antifouling fabric is small. This shows that when loquat leaf extract and Spartina alterniflora extract are used in combination, there may be a certain synergistic effect, thereby significantly improving the antioxidant effect and corrosion resistance of the antifouling fabric.

[0089] According to the data of Example 2 and Comparative Examples 3-5 in Table 4, in Comparative Examples 3-5, tea polyphenols are used in combination with Spartina alterniflora extract and loquat leaf extract (Comparative Example 3), tea polyphenols are used in combination with loquat leaf extract and Spartina alterniflora extract (Comparative Example 4), and tea polyphenols are used alone with Spartina alterniflora extract and loquat leaf extract (Comparative Example 5). It can be seen that although the use of tea polyphenols alone can improve the antioxidant effect and corrosion resistance of the antifouling fabric, it will also greatly reduce the antifouling effect of the antifouling fabric; secondly, the use of tea polyphenols in combination with Spartina alterniflora extract or loquat leaf extract can improve the antifouling fabric. The antioxidant performance of the antifouling fabric can be improved and the antifouling effect can be reduced, but the corrosion resistance of the antifouling fabric can be obviously inhibited. Therefore, it can be shown again that the combination of loquat leaf extract and Spartina alterniflora extract has a synergistic effect, which can significantly improve the antioxidant effect and corrosion resistance of the antifouling fabric without affecting the antifouling effect of the antifouling fabric. The reason may be that the combination of loquat leaf extract and Spartina alterniflora extract can make the nano-titanium dioxide and silane coupling agent better infiltrate into the interior of the electrospun fiber and stably and evenly disperse on the surface of the electrospun fiber, and the nano-titanium dioxide and silane coupling agent have better binding stability with the electrospun fiber.

[0090] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A suit with anti-staining cuffs, characterized by: The invention comprises a suit body and an antifouling fabric sewn at the cuffs of the suit body. The raw materials for preparing the antifouling fabric include, by weight, 34-42 parts of polyamide, 8-12 parts of terephthalic acid, 6-10 parts of ethylene glycol ester, 10-15 parts of Spartina alterniflora extract, 15-19 parts of loquat leaf extract, 10-13 parts of nano-titanium dioxide, and 3-4 parts of silane coupling agent. The Spartina alterniflora extract and loquat leaf extract are respectively obtained from fresh Spartina alterniflora stems and leaves and loquat leaves as raw materials, and are sequentially washed, dried, crushed, extracted, filtered and concentrated.

2. The cuff-proof suit according to claim 1, characterized in that: The extraction uses an ethanol solution with a mass concentration of 60%-80%.

3. A method for preparing a cuff-stain-resistant suit according to any one of claims 1-2, characterized in that: The specific steps are as follows: Step 1: preparing electrospun fibers, melting and uniformly mixing polyamide, terephthalic acid, and ethylene glycol ester in proportion, adding Spartina alterniflora extract and loquat leaf extract dropwise, mixing, and then preparing electrospun fibers by electrospinning technology; Step 2: preparing a soaking liquid, uniformly mixing nano-titanium dioxide and a silane coupling agent in proportion to obtain a soaking mixture, and mixing the soaking mixture with water to obtain a soaking liquid; Step 3: soaking the electrospun fiber obtained in step 1 in the soaking solution obtained in step 2, and performing intermittent ultrasonic treatment. After the soaking is completed, drying is performed to obtain the antifouling fiber; Step 4: Use anti-fouling fibers as warp and weft threads to weave an anti-fouling fabric, and sew the anti-fouling fabric to the cuffs of a suit to obtain an anti-cuff-fouling suit.

4. The preparation method according to claim 3, wherein: The method for obtaining the Spartina alterniflora extract and the loquat leaf extract comprises the following steps: washing the harvested fresh stems and leaves of Spartina alterniflora or loquat leaves with distilled water, drying them at 50°C-60°C for 6-8h, cutting and crushing them into powder, and extracting them with an ethanol solution at 70°C-80°C for 2-3h. The obtained extract is filtered and concentrated to obtain the Spartina alterniflora extract or loquat leaf extract.

5. The preparation method according to claim 3, wherein: In step 2, the mass ratio of the soaking mixture to water is 1:6-10.

6. The preparation method according to claim 3, wherein: In step three, the soaking temperature is 35°C-40°C, and the soaking time is 30h-36h.

7. The preparation method according to claim 6, characterized in that: In step three, the first ultrasonic treatment is performed after soaking for 1 hour, and then the ultrasonic treatment is performed every 2 hours. The time of each ultrasonic treatment is 7-10 minutes, the frequency of the ultrasonic treatment is 15-20kHz, and the ultrasonic power is 30-50W.

8. The preparation method according to claim 3, wherein: In step 4, the linear density of the warp yarn of the antifouling fabric is 37-46 tex, and the linear density of the weft yarn is 26-37 tex.

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