Waterproof antifouling chinlon oxford fabric and processing technology

Abstract

The invention relates to the technical field of textile fabrics, and discloses a waterproof and antifouling chinlon oxford fabric and a processing technology thereof.The waterproof and antifouling chinlon oxford fabric is prepared from, by weight, 30-50 parts of fluorinated acrylate copolymer, 5-10 parts of nano silicon dioxide, 10-20 parts of organic silicon emulsion, 1-3 parts of cross-linking agent, 0.5-1 part of defoaming agent and 30-50 parts of deionized water, and preferably, the waterproof and antifouling chinlon oxford fabric is prepared from, by weight, 30-50 parts of fluorinated acrylate copolymer, 5-10 parts of nano silicon dioxide, 10-20 parts of organic silicon emulsion, 1-3 parts of The preparation method of the fluorine-containing acrylate copolymer comprises the following steps: adding a fluorine-containing acrylate monomer, an acrylate monomer, an initiator and a solvent into a reaction kettle, wherein the molar ratio of the fluorine-containing acrylate monomer to the acrylate monomer is 1: (0.5-2); when the chinlon oxford fabric is woven, the weaving threads are coated with the initial hydrophobic layers, so that the chinlon oxford fabric has the initial hydrophobic capacity, and the surface of the chinlon oxford fabric is continuously coated with the waterproof and antifouling coating paint, so that the chinlon oxford fabric can effectively resist water permeation and stain contamination; the service life of the fabric is prolonged; the capability of keeping the fabric clean is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile fabrics, in particular to waterproof and antifouling nylon Oxford fabrics and a processing technology. Background Art

[0002] Nylon Oxford cloth is an Oxford cloth woven with nylon as the main raw material. Nylon is a synthetic fiber with high strength, wear resistance and elastic recovery ability. In the modern textile field, nylon Oxford cloth is widely used in outdoor equipment, sportswear and protective gear due to its good wear resistance, strength and flexibility.

[0003] Currently available waterproof and anti-fouling nylon Oxford fabrics are all coated directly on the surface of the nylon Oxford fabric to achieve the purpose of waterproof and anti-fouling. However, after the waterproof and anti-fouling coating applied on the surface of the nylon Oxford fabric is worn, it cannot effectively resist water penetration and stain contamination, which reduces the waterproof and anti-fouling, service life and ability to keep clean of the nylon Oxford fabric. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a waterproof and stain-resistant nylon Oxford cloth fabric and a processing technology, which solves the problem of being unable to effectively resist water penetration and stain contamination, and reducing the waterproof and stain-resistant, service life and ability to keep clean of the nylon Oxford cloth fabric.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: waterproof and anti-fouling nylon oxford cloth fabric includes the following raw materials in parts by weight: 30 to 50 parts of fluorine-containing acrylate copolymer, 5 to 10 parts of nano-silicon dioxide, 10 to 20 parts of silicone emulsion, 1 to 3 parts of cross-linking agent, 0.5 to 1 part of defoaming agent and 30 to 50 parts of deionized water.

[0006] Preferably, the method for preparing the fluorine-containing acrylate copolymer comprises adding a fluorine-containing acrylate monomer, an acrylate monomer, an initiator and a solvent into a reaction kettle, wherein the molar ratio of the fluorine-containing acrylate monomer to the acrylate monomer is 1:(0.5-2), and then reacting at 60-80° C. for 4-6 hours under nitrogen protection to obtain a fluorine-containing acrylate copolymer.

[0007] Preferably, the cross-linking agent is an isocyanate cross-linking agent.

[0008] Preferably, the defoamer is a silicone defoamer or a polyether defoamer.

[0009] Preferably, the processing technology of waterproof and antifouling nylon Oxford fabric comprises the following steps:

[0010] Step 1: First, when weaving the nylon Oxford fabric, a preliminary hydrophobic layer made of a mixture of fluoroacrylate copolymer, nano-silica and a cross-linking agent is applied to each braided thread;

[0011] Step 2: After the nylon Oxford fabric is woven, a nylon Oxford fabric base layer is obtained, and the nylon Oxford fabric base layer is dried to further remove impurities and grease from the surface of the nylon Oxford fabric base layer;

[0012] Step 3, dispersing nano-silicon dioxide in deionized water, and ultrasonically treating for 1 to 2 hours to obtain a nano-silicon dioxide dispersion;

[0013] Step 4, mixing the fluorinated acrylate copolymer, the silicone emulsion, the crosslinking agent, the defoaming agent and the nano-silicon dioxide dispersion to obtain a waterproof and antifouling coating;

[0014] Step 5: Apply the waterproof and antifouling coating on the upper and lower surfaces of the nylon Oxford cloth base layer by blade coating or dipping, and then dry at 80-100° C. for 2-3 hours to obtain the waterproof and antifouling nylon Oxford cloth fabric.

[0015] Preferably, the nylon oxford fabric is woven in twill.

[0016] Preferably, in the step 2, after obtaining the nylon Oxford cloth base layer, the preliminary hydrophobic layer overflowing from the surface is scraped and evenly spread, and the remaining thickness of the preliminary hydrophobic layer is 0.1-0.3 mm, and the temperature of the nylon Oxford cloth base layer is dried at 50-70° C. for 1-2 hours.

[0017] Preferably, in step 4, the stirring speed during mixing is 200 to 300 rpm, and the stirring time is 20 to 30 minutes.

[0018] Preferably, in step five, the speed of blade coating is 1 to 2 m / min, and the immersion time is 5 to 10 minutes.

[0019] The present invention provides a waterproof and antifouling nylon Oxford fabric and a processing technology, which has the following beneficial effects:

[0020] 1. The present invention applies a preliminary hydrophobic layer on the braided threads of the nylon Oxford fabric when the fabric is being woven, so that the nylon Oxford fabric has preliminary hydrophobicity, and then continues to apply a waterproof and antifouling coating on the surface of the nylon Oxford fabric, so that the fabric can effectively resist water penetration and stains, thereby extending the service life of the fabric and its ability to keep clean.

[0021] 2. The present invention improves the strength and texture of the fabric by adopting a twill weaving method, and performs a preliminary hydrophobic treatment during weaving and a subsequent re-coating, so that the prepared waterproof and stain-resistant nylon Oxford fabric has excellent performance and good quality stability, which can meet consumers' demand for high-quality functional fabrics and help improve the competitiveness of the product in the market.

[0022] 3. The present invention enhances the waterproof and antifouling properties of nylon oxford fabric. The fabric can be used not only in conventional clothing and luggage fields, but also in outdoor sports equipment and medical protective equipment that have high requirements for waterproof and antifouling, so that it can maintain good performance for a long time and is not easily invalidated by external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a schematic diagram of the process of processing the waterproof and antifouling nylon Oxford fabric. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings 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.

[0025] Example:

[0026] Please see attached Figure 1 The embodiment of the present invention provides a waterproof and anti-fouling nylon oxford fabric, comprising the following raw materials in parts by weight: 30 to 50 parts of fluorine-containing acrylate copolymer, 5 to 10 parts of nano-silicon dioxide, 10 to 20 parts of silicone emulsion, 1 to 3 parts of cross-linking agent, 0.5 to 1 part of defoaming agent and 30 to 50 parts of deionized water.

[0027] Fluorinated acrylate copolymers can form a low surface energy coating on the surface of fabrics, giving the fabrics excellent waterproof properties and making their surfaces difficult to be wetted by water;

[0028] Nano-silicon dioxide can increase the roughness of the coating, further enhancing the waterproof effect while improving the wear resistance of the fabric;

[0029] Silicone emulsion can improve the flexibility and adhesion of the coating, making the fabric feel softer;

[0030] Cross-linking agents help increase the cross-linking density of the coating, enhancing its stability and durability;

[0031] Defoaming agents can eliminate bubbles generated during the mixing process and ensure the uniformity of the coating.

[0032] The preparation method of the fluorine-containing acrylate copolymer comprises the following steps: adding a fluorine-containing acrylate monomer, an acrylate monomer, an initiator and a solvent into a reaction kettle, wherein the molar ratio of the fluorine-containing acrylate monomer to the acrylate monomer is 1:(0.5-2), and then reacting at 60-80° C. for 4-6 hours under nitrogen protection to obtain a fluorine-containing acrylate copolymer.

[0033] By controlling the ratio of fluorinated acrylate monomer to acrylate monomer and the reaction conditions, the molecular structure and properties of the copolymer can be precisely controlled to achieve the best waterproof and antifouling effect. Nitrogen protection can prevent the interference of oxygen during the reaction and ensure the smooth progress of the reaction and the quality of the product.

[0034] The crosslinking agent is an isocyanate crosslinking agent.

[0035] Isocyanate crosslinkers can chemically react with fluorinated acrylate copolymers and other ingredients to form a three-dimensional network structure, which significantly improves the strength, water resistance and chemical corrosion resistance of the coating.

[0036] The defoaming agent is a silicone defoaming agent or a polyether defoaming agent.

[0037] Silicone defoamers and polyether defoamers have good defoaming properties and compatibility, and can quickly eliminate bubbles to prevent bubbles from forming defects in the coating, thereby ensuring the integrity and waterproof and antifouling properties of the coating.

[0038] The processing technology of waterproof and anti-fouling nylon Oxford fabric includes the following steps:

[0039] Step 1: When weaving the nylon Oxford fabric, a preliminary hydrophobic layer made of a mixture of fluoroacrylate copolymer, nano-silica and a cross-linking agent is applied to each braided wire; applying the preliminary hydrophobic layer in advance during the weaving process can improve the waterproof performance of the fabric from the fiber level, laying a good foundation for subsequent coating treatment;

[0040] Step 2: After the nylon Oxford fabric is woven, a nylon Oxford fabric base layer is obtained, and the nylon Oxford fabric base layer is dried to further remove impurities and grease from the surface of the nylon Oxford fabric base layer; the drying process can remove moisture, so that the preliminary hydrophobic layer can better adhere and function, and the removal of impurities and grease can improve the bonding force between the coating and the base layer;

[0041] Step 3, dispersing nano-silicon dioxide in deionized water, and ultrasonically treating for 1 to 2 hours to obtain a nano-silicon dioxide dispersion; ultrasonic treatment can make the nano-silicon dioxide evenly dispersed, enhance its synergistic effect with other ingredients, and improve the performance of the coating;

[0042] Step 4: Evenly mix the fluorinated acrylate copolymer, the silicone emulsion, the crosslinking agent, the defoaming agent and the nano-silicon dioxide dispersion to obtain a waterproof and antifouling coating; evenly mix to ensure that each component can fully play its role and form a coating with stable performance;

[0043] Step five, applying the waterproof and antifouling coating on the upper and lower surfaces of the nylon Oxford cloth base layer by blade coating or dipping, and then drying at 80-100° C. for 2-3 hours to obtain a waterproof and antifouling nylon Oxford cloth fabric. Blade coating or dipping can ensure uniform coverage of the coating, and the drying process solidifies the coating to form a strong waterproof and antifouling layer.

[0044] Nylon Oxford fabric features a twill weave.

[0045] The twill weave increases the strength and abrasion resistance of the fabric, while giving it a better feel and appearance.

[0046] In step 2, after obtaining the nylon Oxford cloth base layer, the preliminary hydrophobic layer overflowing from the surface is scraped and evenly spread, and the remaining thickness of the preliminary hydrophobic layer is 0.1-0.3 mm. The nylon Oxford cloth base layer is dried at a temperature of 50-70° C. for 1-2 hours.

[0047] Appropriate drying temperature and time can effectively remove moisture and impurities without causing damage to the base layer and the preliminary hydrophobic layer.

[0048] In step 4, the stirring speed during mixing is 200 to 300 rpm, and the stirring time is 20 to 30 minutes.

[0049] It can fully mix the ingredients and avoid local unevenness, thus ensuring the quality of the coating.

[0050] In step 5, the speed of blade coating is 1 to 2 m / min, and the dipping time is 5 to 10 minutes.

[0051] Controlling the blade coating speed and dipping time can ensure the thickness and uniformity of the coating and achieve the ideal waterproof and antifouling effect.

[0052] The following is an introduction in conjunction with specific embodiments:

[0053] Embodiment 1:

[0054] The waterproof and antifouling nylon oxford fabric comprises the following raw materials in parts by weight: 30 parts of fluorine-containing acrylate copolymer, 5 parts of nano silicon dioxide, 10 parts of organic silicon emulsion, 1 part of cross-linking agent, 0.5 parts of defoaming agent and 30 parts of deionized water.

[0055] Preparation method of fluorinated acrylate copolymer: add fluorinated acrylate monomer, acrylate monomer, initiator and solvent into a reaction kettle, the molar ratio of fluorinated acrylate monomer to acrylate monomer is 1:0.5, then react at 60°C for 4 hours under nitrogen protection to obtain fluorinated acrylate copolymer.

[0056] The crosslinking agent is an isocyanate crosslinking agent.

[0057] The defoaming agent is a silicone defoaming agent.

[0058] Waterproof and anti-fouling nylon Oxford fabric processing technology:

[0059] First, when weaving the nylon oxford fabric, a preliminary hydrophobic layer made of a mixture of fluoroacrylate copolymer, nano-silica and a cross-linking agent is applied to each braided thread.

[0060] After the nylon Oxford fabric is woven, the nylon Oxford fabric base layer is obtained, and the nylon Oxford fabric base layer is dried at a temperature of 50° C. for 1 hour, and impurities and grease on the surface of the nylon Oxford fabric base layer are further removed, and the preliminary hydrophobic layer overflowed from the surface is scraped and evenly spread to make the remaining thickness of the preliminary hydrophobic layer 0.1 mm.

[0061] The nano-silicon dioxide was dispersed in deionized water and subjected to ultrasonic treatment for 1 hour to obtain a nano-silicon dioxide dispersion.

[0062] The fluorinated acrylate copolymer, the silicone emulsion, the crosslinking agent, the defoaming agent and the nano-silicon dioxide dispersion are uniformly mixed at a stirring speed of 200 revolutions per minute for 20 minutes to obtain a waterproof and antifouling coating.

[0063] When nylon Oxford fabric is weaved, a preliminary hydrophobic layer is applied on the weaving wire. This operation can establish a preliminary hydrophobic structure at the fiber level. The mixture of fluorinated acrylate copolymer, nano-silica and cross-linking agent forms a microscopic hydrophobic barrier on the weaving wire, giving the fabric preliminary hydrophobic ability. Subsequently, the waterproof and antifouling coating is applied on the surface of the fabric to further enhance the hydrophobic and antifouling effects.

[0064] This multi-level protective treatment enables the fabric to effectively block water penetration and stain adhesion. Since water and stains are difficult to penetrate into the interior of the fabric, the service life of the fabric is extended and it can remain clean for a long time, reducing the frequency of cleaning and maintenance.

[0065] The waterproof and antifouling coating was applied on the upper and lower surfaces of the nylon oxford cloth base layer by a scraper coating method at a speed of 1 m / min, and then dried at 80°C for 2 hours to obtain a waterproof and antifouling nylon oxford cloth fabric.

[0066] The scraper coating method can be used to evenly coat the waterproof and antifouling coating on the upper and lower surfaces of the nylon Oxford fabric base, ensuring that the waterproof and antifouling properties of all parts of the fabric are consistent and avoiding large differences in local performance.

[0067] By adjusting the pressure and angle of the scraper, the thickness of the coating can be precisely controlled to achieve a balanced adjustment of the waterproof and anti-fouling effect and the feel and breathability of the fabric. Appropriate scraper pressure can promote the close bonding of the coating and the fabric base, enhance the adhesion of the coating, and make it less likely to fall off during use and washing.

[0068] Nylon Oxford fabric features a twill weave.

[0069] Embodiment 2:

[0070] The waterproof and antifouling nylon oxford fabric comprises the following raw materials in parts by weight: 50 parts of fluorine-containing acrylate copolymer, 10 parts of nano-silicon dioxide, 20 parts of organic silicon emulsion, 3 parts of cross-linking agent, 1 part of defoaming agent and 50 parts of deionized water.

[0071] Preparation method of fluorinated acrylate copolymer: add fluorinated acrylate monomer, acrylate monomer, initiator and solvent into a reaction kettle, the molar ratio of fluorinated acrylate monomer to acrylate monomer is 1:2, then react at 70°C for 5 hours under nitrogen protection to obtain fluorinated acrylate copolymer.

[0072] The crosslinking agent is an isocyanate crosslinking agent.

[0073] The defoaming agent is a polyether defoaming agent.

[0074] Waterproof and anti-fouling nylon Oxford fabric processing technology:

[0075] First, when weaving the nylon oxford fabric, a preliminary hydrophobic layer made of a mixture of fluoroacrylate copolymer, nano-silica and a cross-linking agent is applied to each braided thread.

[0076] After the nylon Oxford fabric is woven, the nylon Oxford fabric base layer is obtained, and the nylon Oxford fabric base layer is dried at a temperature of 60° C. for 1.5 hours. Impurities and grease on the surface of the nylon Oxford fabric base layer are further removed, and the preliminary hydrophobic layer overflowed from the surface is scraped and evenly applied to make the remaining thickness of the preliminary hydrophobic layer 0.2 mm.

[0077] The nano-silicon dioxide was dispersed in deionized water and subjected to ultrasonic treatment for 1.5 hours to obtain a nano-silicon dioxide dispersion.

[0078] The fluorinated acrylate copolymer, the silicone emulsion, the crosslinking agent, the defoaming agent and the nano-silicon dioxide dispersion are uniformly mixed at a stirring speed of 250 revolutions per minute for 25 minutes to obtain a waterproof and antifouling coating.

[0079] The waterproof and antifouling coating was applied on the upper and lower surfaces of the nylon Oxford cloth base layer by dipping for 7.5 minutes, and then dried at 90° C. for 2.5 hours to obtain the waterproof and antifouling nylon Oxford cloth fabric.

[0080] The impregnation method ensures that all parts of the fabric, including the gaps between fibers, are fully infiltrated with the waterproof and antifouling coating, achieving all-round protection and avoiding blind spots. It helps the coating penetrate deeper into the fabric and better combine with the fibers, thus enhancing the durability of the waterproof and antifouling effect.

[0081] Even for fabrics with complex structures, impregnation can provide relatively uniform coating distribution and ensure the consistency of overall performance. The impregnation process is relatively simple, easy to control and operate, and has relatively low technical requirements for operators. During the impregnation process, the paint that is not attached to the fabric can be recycled and reused, reducing paint waste and reducing costs.

[0082] Nylon Oxford fabric features a twill weave.

[0083] The low surface energy characteristics of fluorinated acrylate copolymers, the increased roughness of nano-silica and the improved flexibility of silicone emulsions, combined with specific processing techniques, including initial hydrophobic layer treatment during weaving and subsequent coating, make nylon Oxford fabrics have excellent waterproof and antifouling properties;

[0084] This performance improvement enables the fabric to not only meet the requirements of conventional clothing and luggage for a certain degree of waterproof and anti-fouling performance, but also adapt to the fields of outdoor sports equipment and medical protective equipment that require higher waterproof and anti-fouling performance;

[0085] When used for a long time and facing various external environmental factors, such as frequent friction, rain erosion, and stains, the fabric can maintain its good waterproof and anti-fouling properties and is not easily invalidated by external factors.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Waterproof and anti-fouling nylon Oxford fabric, characterized by: The invention comprises the following raw materials in parts by weight: 30-50 parts of fluorine-containing acrylic copolymer, 5-10 parts of nano silicon dioxide, 10-20 parts of organic silicon emulsion, 1-3 parts of crosslinking agent, 0.5-1 part of defoaming agent and 30-50 parts of deionized water.

2. The waterproof and antifouling nylon Oxford fabric according to claim 1, characterized in that: The method for preparing the fluorine-containing acrylate copolymer comprises adding a fluorine-containing acrylate monomer, an acrylate monomer, an initiator and a solvent into a reaction kettle, wherein the molar ratio of the fluorine-containing acrylate monomer to the acrylate monomer is 1:(0.5-2), and then reacting at 60-80° C. for 4-6 hours under nitrogen protection to obtain the fluorine-containing acrylate copolymer.

3. The waterproof and antifouling nylon Oxford fabric according to claim 1, characterized in that: The crosslinking agent is an isocyanate crosslinking agent.

4. The waterproof and antifouling nylon Oxford fabric according to claim 1, characterized in that: The defoamer is an organosilicon defoamer or a polyether defoamer.

5. Waterproof and antifouling nylon Oxford fabric processing technology, characterized in that: The waterproof and antifouling nylon Oxford fabric according to any one of claims 1 to 4, wherein the processing technology comprises the following steps: Step 1: First, when weaving the nylon Oxford fabric, a preliminary hydrophobic layer made of a mixture of fluoroacrylate copolymer, nano-silica and a cross-linking agent is applied to each braided thread; Step 2: After the nylon Oxford fabric is woven, a nylon Oxford fabric base layer is obtained, and the nylon Oxford fabric base layer is dried to further remove impurities and grease from the surface of the nylon Oxford fabric base layer; Step 3, dispersing nano-silicon dioxide in deionized water, and ultrasonically treating for 1 to 2 hours to obtain a nano-silicon dioxide dispersion; Step 4, mixing the fluorinated acrylate copolymer, the silicone emulsion, the crosslinking agent, the defoaming agent and the nano-silicon dioxide dispersion to obtain a waterproof and antifouling coating; Step 5: Apply the waterproof and antifouling coating on the upper and lower surfaces of the nylon Oxford cloth base layer by blade coating or dipping, and then dry at 80-100° C. for 2-3 hours to obtain the waterproof and antifouling nylon Oxford cloth fabric.

6. The waterproof and antifouling nylon Oxford fabric and processing technology according to claim 5, characterized in that: The nylon oxford fabric adopts twill weaving.

7. The waterproof and antifouling nylon Oxford fabric and processing technology according to claim 5, characterized in that: In the step 2, after obtaining the nylon Oxford cloth base layer, the preliminary hydrophobic layer overflowing from the surface is scraped and evenly spread, and the remaining thickness of the preliminary hydrophobic layer is 0.1-0.3 mm. The temperature of the nylon Oxford cloth base layer is dried at 50-70° C. for 1-2 hours.

8. The waterproof and antifouling nylon Oxford fabric and processing technology according to claim 5, characterized in that: In the step 4, the stirring speed during mixing is 200 to 300 rpm, and the stirring time is 20 to 30 minutes.

9. The waterproof and antifouling nylon Oxford fabric and processing technology according to claim 5, characterized in that: In the step 5, the speed of the scraper coating is 1 to 2 m / min, and the dipping time is 5 to 10 minutes.

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