Mothproof breathable fabric and preparation method thereof

Abstract

The invention discloses a mothproof breathable fabric, and relates to the technical field of fabrics. The fabric loaded with nano calcium carbonate is firstly prepared, then the fabric is soaked in hydrochloric acid, holes can be left in the fabric due to release of carbon dioxide gas, the breathability of the fabric is enhanced, and the moisture resistance of the fabric can be further enhanced due to generated calcium chloride; then, the lemon grass oil and the like are sprayed on the fabric through ultrasonic atomization to prepare the mothproof breathable fabric, and the loss caused by volatility of the lemon grass oil can be effectively reduced through ultrasonic atomization spraying; besides, the diatomite is added into the lemon grass oil, the diatomite has a unique pore structure and better dehumidification performance, and the pore structure can be partially communicated with the porous structure of the fabric, so that the ventilation and damp-proof effects of the fabric are further improved. The mothproof breathable fabric prepared by the invention has mothproof, breathable and damp-proof effects.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, in particular to a moth-proof and breathable fabric and a preparation method thereof. Background Art

[0002] With the improvement of people's living standards and the pursuit of quality of life, consumers have higher and higher requirements for textiles. In daily life, textiles may be eaten by pests, which will directly damage the fiber structure of clothing, resulting in a decrease in clothing strength and shortening its service life; when the fibers are eaten by insects, holes and rough edges will appear on the surface of clothing, seriously affecting the appearance; and textiles eaten by insects require more repair or replacement costs, which increases the economic burden on consumers.

[0003] While moths are eroding fabrics, they may carry and spread harmful microorganisms such as bacteria and mold. When these microorganisms come into contact with human skin, they may cause health problems such as allergic reactions and skin inflammation. Especially for sensitive people and children, moth-proof fabrics, as a product with special functions, can meet consumers' needs for protecting textiles, extending service life, and maintaining health and safety. Especially in humid and warm environments, the problem of moths eroding textiles is particularly prominent. This health risk is more prominent.

[0004] Therefore, the present invention provides a moth-proof and breathable fabric and a preparation method thereof, which has the effects of moth-proof, breathable and moisture-proof. Summary of the invention

[0005] The object of the present invention is to provide a moth-proof breathable fabric and a preparation method thereof, so as to solve the problems existing in the prior art.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a moth-proof and breathable fabric, which is prepared by preparing a porous fabric using calcium carbonate and a polymer substrate, and then ultrasonically atomizing and spraying a moth-proof functional coating onto the porous fabric.

[0007] Furthermore, the polymer substrate is polyester chip WS-510N.

[0008] Furthermore, the anti-moth functional coating is mainly composed of lemongrass oil, and one or more of azadirachtin, cedar oil, lantaina oil, lavender essential oil and eucalyptus essential oil are added.

[0009] Furthermore, a method for preparing a moth-proof and breathable fabric comprises the following preparation steps:

[0010] (1) After the polyester chips WS-510N are heated to 160-180°C for pre-crystallization for 1-2 hours, they are dried at 150-180°C for 8-10 hours, heated to 260-270°C, and the temperature is maintained until the chips are completely dissolved, and nano calcium carbonate powder with a mass of 0.2-0.3 times of the polyester chips WS-510N is added, stirred at 10-20 r / min for 1-2 hours, and then spun, cooled and formed to obtain polyester fibers loaded with calcium carbonate, and woven to obtain preliminary fabrics;

[0011] (2) soaking the preliminary fabric in a 10-15 wt% hydrochloric acid aqueous solution, heating to 40-50° C., reacting until no bubbles are generated, taking it out, washing it with deionized water for 3-5 times, and drying it at 60-80° C. for 24 hours to obtain a porous fabric;

[0012] (3) Lemongrass oil, cyclodextrin and water are mixed at a mass ratio of 0.5-0.7:0.3-0.4:1, stirred at 700-800 r / min for 2-3 h, diatomaceous earth is added at a mass ratio of 1-1.5 times the mass of lemongrass oil, and cedar oil is added at a mass ratio of 0.3-0.5 times the mass of lemongrass oil, stirred at 700-800 r / min for 2-3 h, placed in an ultrasonic atomizer and sprayed onto a porous fabric, and dried to obtain a moth-proof and breathable fabric.

[0013] Furthermore, in step (1), the particle size of the nano calcium carbonate powder is 80 to 100 nm.

[0014] Furthermore, in the step (1), the spinning temperature of the polyester fiber is 285-295° C., the pressure is 14-16 MPa, and the spinning speed is 2500-3000 m / min.

[0015] Furthermore, the cooling forming in step (1) is performed by side wind cooling with a wind speed of 0.40 to 0.50 m / min and a wind temperature of 20 to 25°C.

[0016] Furthermore, the conditions for ultrasonic atomization spraying in step (3) are that the spraying distance is 1 to 2 cm, the time is 6 to 8 minutes, and the fabric is moved during the spraying process.

[0017] Furthermore, the condition of ultrasonic atomization spraying in step (3) is that the spray gun sprays on the surface of the fabric at a spray speed of 7.0 to 7.5 L / min.

[0018] Furthermore, in step (3), the drying step is to place the sprayed fabric in an oven at 60 to 80° C. and dry it for 4 to 6 hours to obtain the heat-insulating and breathable fabric.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0020] The invention prepares a porous fabric by using calcium carbonate, and then ultrasonically atomizes and sprays lemongrass oil onto the porous fabric to obtain the moth-proof and breathable fabric, so as to achieve the moth-proof, breathable and moisture-proof effects.

[0021] First, porous fibers are prepared using calcium carbonate. Nano-calcium carbonate particles are spun together with polyester fiber slices to obtain fabrics loaded with nano-calcium carbonate. The fabrics are then immersed in hydrochloric acid to convert the calcium carbonate into calcium chloride, while releasing carbon dioxide gas. The release of carbon dioxide gas will leave holes in the fabric, enhancing the breathability of the fabric. The presence of calcium chloride will further enhance the moisture-proof properties of the fabric.

[0022] Secondly, anti-moth functional coatings such as lemongrass oil are sprayed onto the fabric by ultrasonic atomization to obtain anti-moth breathable fabric; ultrasonic atomization spraying of lemongrass oil can effectively reduce the loss caused by the volatility of lemongrass oil, improve the utilization rate of raw materials, and its film-forming uniformity is high, which can further improve the anti-moth performance and adhesion of the fabric. Diatomaceous earth is added to the lemongrass oil. Diatomaceous earth can act as an adhesive to attach the lemongrass oil to the porous fabric. At the same time, diatomaceous earth has a unique pore structure and good dehumidification performance. The pore structure can be partially connected with the porous structure of the fabric, further improving the air permeability and moisture-proof performance of the fabric. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe in detail the test methods of various indicators of the moth-proof breathable fabrics prepared in the following examples are as follows:

[0025] Anti-moth performance: The anti-moth breathable fabrics of the same area prepared in the embodiment and the comparative example were tested for their anti-moth performance with reference to FZ / T 2004-2009 "Methods for analyzing anti-moth performance using biological methods" and other relevant standards.

[0026] Air permeability: The anti-moth breathable fabrics of the same area prepared in the embodiment and the comparative example were tested for air permeability according to national standards such as GB / T 5453 Determination of Air Permeability of Textile Fabrics.

[0027] Moisture-proof performance: After the same area of ​​the moth-proof and breathable fabrics prepared in the embodiment and the comparative example were exposed to an environment with a certain humidity for a period of time, their mass changes were measured.

[0028] Example 1

[0029] A method for preparing a moth-proof and breathable fabric comprises the following preparation steps:

[0030] (1) After the polyester chips WS-510N were heated to 160°C for pre-crystallization for 1 hour, they were dried at 150°C for 8 hours, and then heated to 260°C. The temperature was maintained until the chips were completely dissolved, and nano-calcium carbonate powder with a particle size of 80 nm and a weight of 0.2 times that of the polyester chips WS-510N was added. After stirring at 10 r / min for 1 hour, spinning was performed. The spinning temperature was 285°C, the pressure was 14 MPa, and the spinning speed was 2500 m / min. The temperature was lowered by side wind at a wind speed of 0.40 m / min and a wind temperature of 20°C. The polyester fibers loaded with calcium carbonate were formed by cooling, and the fibers were woven to obtain preliminary fabrics.

[0031] (2) soaking the preliminary fabric in a 10 wt % hydrochloric acid aqueous solution, heating to 40° C., reacting until no bubbles are generated, taking it out, washing it with deionized water for 3 times, and drying it at 60° C. for 24 h to obtain a porous fabric;

[0032] (3) lemongrass oil, cyclodextrin and water were mixed at a mass ratio of 0.5:0.3:1, stirred at 700 r / min for 2 h, diatomaceous earth with a mass of 1 times that of lemongrass oil was added, and then cedar oil with a mass of 0.3 times that of lemongrass oil was added, and stirred at 700 r / min for 2 h to obtain an anti-moth performance coating;

[0033] (4) The anti-moth functional coating was placed in an ultrasonic atomizer and sprayed onto the porous fabric. The spray speed of the spray gun was 7.0 L / min, the spraying distance was 1 cm, and the time was 6 min. The fabric was moved during the spraying process. The sprayed fabric was placed in a 60°C oven and dried for 4 h to obtain a heat-insulating and breathable fabric.

[0034] Example 2

[0035] A method for preparing a moth-proof and breathable fabric comprises the following preparation steps:

[0036] (1) After the polyester chips WS-510N were heated to 170°C for pre-crystallization for 1.5 hours, they were dried at 175°C for 9 hours, and then heated to 265°C. The temperature was maintained until the chips were completely dissolved, and nano-calcium carbonate powder with a particle size of 90 nm and a weight of 0.2 times that of the polyester chips WS-510N was added. After stirring at 15 r / min for 1.5 hours, spinning was performed. The spinning temperature was 290°C, the pressure was 15 MPa, and the spinning speed was 2700 m / min. The side wind was cooled at a wind speed of 0.45 m / min and a wind temperature of 22°C. The polyester fibers loaded with calcium carbonate were formed by cooling, and the fibers were woven to obtain preliminary fabrics.

[0037] (2) soaking the preliminary fabric in a 12 wt % hydrochloric acid aqueous solution, heating to 45° C., reacting until no bubbles are generated, taking it out, washing it with deionized water for 4 times, and drying it at 70° C. for 24 h to obtain a porous fabric;

[0038] (3) lemongrass oil, cyclodextrin and water were mixed in a mass ratio of 0.6:0.3:1, stirred at 750 r / min for 2.5 h, diatomaceous earth with a mass of 1 times that of lemongrass oil was added, and then cedar oil with a mass of 0.4 times that of lemongrass oil was added, and stirred at 750 r / min for 2.5 h to obtain an anti-moth performance coating;

[0039] (4) The anti-moth functional coating was placed in an ultrasonic atomizer and sprayed onto the porous fabric. The spraying speed of the spray gun was 7.3 L / min, the spraying distance was 1 cm, and the time was 7 min. The fabric was moved during the spraying process. The sprayed fabric was placed in a 70°C oven and dried for 5 h to obtain a heat-insulating and breathable fabric.

[0040] Example 3

[0041] A method for preparing a moth-proof and breathable fabric comprises the following preparation steps:

[0042] (1) After the polyester chips WS-510N are heated to 180°C for pre-crystallization for 2 hours, they are dried at 180°C for 10 hours, heated to 270°C, and the temperature is maintained until the chips are completely dissolved, and nano calcium carbonate powder with a particle size of 100 nm and a weight of 0.3 times that of the polyester chips WS-510N is added, and the mixture is stirred at 20 r / min for 2 hours, and then spun at a spinning temperature of 295°C, a pressure of 16 MPa, and a spinning speed of 3000 m / min. The mixture is cooled by a side wind at a wind speed of 0.50 m / min and a wind temperature of 25°C, and the polyester fibers loaded with calcium carbonate are formed by cooling, and the polyester fibers are woven to obtain preliminary fabrics;

[0043] (2) soaking the preliminary fabric in a 15 wt % hydrochloric acid aqueous solution, heating to 50° C., reacting until no bubbles are generated, taking it out, washing it with deionized water for 5 times, and drying it at 80° C. for 24 h to obtain a porous fabric;

[0044] (3) lemongrass oil, cyclodextrin and water were mixed at a mass ratio of 0.7:0.4:1, stirred at 800 r / min for 3 h, diatomaceous earth with a mass of 1.5 times that of lemongrass oil was added, and then cedar oil with a mass of 0.5 times that of lemongrass oil was added, and stirred at 800 r / min for 3 h to obtain an anti-moth performance coating;

[0045] (4) The anti-moth functional coating was placed in an ultrasonic atomizer and sprayed onto the porous fabric. The spray speed of the spray gun was 7.5 L / min, the spraying distance was 2 cm, and the time was 8 min. The fabric was moved during the spraying process. The sprayed fabric was placed in an oven at 80°C and dried for 6 h to obtain a heat-insulating and breathable fabric.

[0046] Comparative Example 1

[0047] The difference between Comparative Example 1 and Example 1 is that step (1) is different. Step (1) is changed to: the polyester chip WS-510N is heated to 160°C for pre-crystallization for 1 hour, then dried at 150°C for 8 hours, heated to 260°C, and the temperature is maintained until the chips are completely dissolved, and spinning is carried out. The spinning temperature is 285°C, the pressure is 14 MPa, the spinning speed is 2500 m / min, and the side wind is cooled at a wind speed of 0.40 m / min and a wind temperature of 20°C. The polyester fiber is cooled and woven to obtain a preliminary fabric. The remaining steps are the same as in Example 1.

[0048] Comparative Example 2

[0049] The difference between Comparative Example 2 and Example 1 is that there is no step (2), and step (4) is changed to: placing the anti-moth functional coating in an ultrasonic atomizer and spraying it onto the preliminary fabric, the spray gun has a spray speed of 7.0 L / min, a spraying distance of 1 cm, and a time of 6 min. The fabric is moved during the spraying process, and the sprayed fabric is placed in a 60°C oven and dried for 4 hours to obtain a heat-insulating and breathable fabric; the remaining steps are the same as in Example 1.

[0050] Comparative Example 3

[0051] The difference between Comparative Example 3 and Example 1 is that step (3) is different. Step (3) is changed to: lemongrass oil, cyclodextrin and water are mixed in a mass ratio of 0.5:0.3:1, stirred at 700 r / min for 2 h, cedar oil 0.3 times the amount of lemongrass oil is added, and stirred at 700 r / min for 2 h to obtain an anti-moth performance coating; the remaining steps are the same as Example 1.

[0052] Comparative Example 4

[0053] The difference between Comparative Example 4 and Example 1 is that step (4) is different. Step (4) is changed to: spray the anti-moth functional coating onto the porous fabric, the spray speed of the spray gun is 7.0 L / min, the spraying distance is 1 cm, the time is 6 min, the fabric is moved during the spraying process, and the sprayed fabric is placed in a 60°C oven and dried for 4 hours to obtain an insulating and breathable fabric.

[0054] Effect example

[0055] Table 1 below shows the performance analysis results of the moth-proof and breathable fabrics of Examples 1 to 3 of the present invention and Comparative Examples 1 to 4.

[0056] Table 1

[0057]

[0058] From the comparison of the experimental data of Examples 1, 2, and 3 with those of Comparative Example 1, it can be found that if nano-calcium carbonate particles are not added to the polyester fiber slices for spinning to obtain a fabric loaded with nano-calcium carbonate, even if the fabric is immersed in hydrochloric acid, no calcium carbonate will exist and will be converted into calcium chloride, and carbon dioxide gas will be released at the same time, and there will be no pore structure and calcium chloride in the fabric, and the air permeability and moisture resistance of the fabric will not be enhanced; from the comparison of the experimental data of Examples 1, 2, and 3 with those of Comparative Example 2, it can be found that even if nano-calcium carbonate particles are spun together with the polyester fiber slices to obtain a fabric loaded with nano-calcium carbonate, but the fabric is not immersed in hydrochloric acid to convert calcium carbonate into calcium chloride and release carbon dioxide gas at the same time, there will be no pore structure and calcium chloride in the fabric, and the air permeability and moisture resistance of the fabric will not be enhanced. The invention discloses a novel method for improving the air permeability and moisture-proof performance of the fabric. The invention discloses a ...

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A moth-proof breathable fabric, characterized in that: The mothproof and breathable fabric is prepared by using calcium carbonate and a polymer substrate to prepare a porous fabric, and then ultrasonically atomizing and spraying a mothproof functional coating onto the porous fabric.

2. The anti-moth breathable fabric according to claim 1, characterized in that: The polymer substrate is polyester chip WS-510N.

3. The anti-moth breathable fabric according to claim 2, characterized in that: The anti-moth functional coating is mainly composed of lemongrass oil, and one or more of azadirachtin, cedar oil, lantaina oil, lavender essential oil and eucalyptus essential oil are added.

4. A method for preparing a moth-proof and breathable fabric, characterized in that: The method comprises the following preparation steps: (1) After the polyester chips WS-510N are heated to 160-180°C for pre-crystallization for 1-2 hours, they are dried at 150-180°C for 8-10 hours, heated to 260-270°C, and the temperature is maintained until the chips are completely dissolved, and nano calcium carbonate powder with a mass of 0.2-0.3 times of the polyester chips WS-510N is added, stirred at 10-20 r / min for 1-2 hours, and then spun, cooled and formed to obtain polyester fibers loaded with calcium carbonate, and woven to obtain preliminary fabrics; (2) soaking the preliminary fabric in a 10-15 wt% hydrochloric acid aqueous solution, heating to 40-50° C., reacting until no bubbles are generated, taking it out, washing it with deionized water for 3-5 times, and drying it at 60-80° C. for 24 hours to obtain a porous fabric; (3) Lemongrass oil, cyclodextrin and water are mixed at a mass ratio of 0.5-0.7:0.3-0.4:1, stirred at 700-800 r / min for 2-3 h, diatomaceous earth is added at a mass ratio of 1-1.5 times the mass of lemongrass oil, and cedar oil is added at a mass ratio of 0.3-0.5 times the mass of lemongrass oil, stirred at 700-800 r / min for 2-3 h, placed in an ultrasonic atomizer and sprayed onto a porous fabric, and dried to obtain a moth-proof and breathable fabric.

5. The method for preparing a moth-proof breathable fabric according to claim 4, characterized in that: The particle size of the nano calcium carbonate powder in step (1) is 80 to 100 nm.

6. The method for preparing a moth-proof breathable fabric according to claim 4, characterized in that: In the step (1), the spinning temperature of the polyester fiber is 285-295° C., the pressure is 14-16 MPa, and the spinning speed is 2500-3000 m / min.

7. The method for preparing a moth-proof breathable fabric according to claim 4, characterized in that: The cooling and forming in step (1) is carried out by side wind cooling with a wind speed of 0.40 to 0.50 m / min and a wind temperature of 20 to 25°C.

8. The method for preparing a moth-proof breathable fabric according to claim 4, characterized in that: The conditions for ultrasonic atomization spraying in step (3) are as follows: the spraying distance is 1 to 2 cm, the time is 6 to 8 minutes, and the fabric is moved during the spraying process.

9. The method for preparing a moth-proof breathable fabric according to claim 4, characterized in that: The condition of ultrasonic atomization spraying in step (3) is that the spray gun sprays on the surface of the fabric at a spray speed of 7.0 to 7.5 L / min.

10. The method for preparing a moth-proof breathable fabric according to claim 4, characterized in that: The drying in step (3) is to place the sprayed fabric in an oven at 60 to 80° C. and dry for 4 to 6 hours to obtain a heat-insulating and breathable fabric.

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