Preparation method of comfortable oil-resistant water-blocking work clothes

Abstract

The invention belongs to the technical field of textile, and particularly relates to a preparation method of comfortable oil-resistant and water-resistant work clothes, which comprises the following steps: by taking a silica precursor as a film agent and polyvinyl alcohol as a penetrant, carrying out hydrolysis reaction and hot press molding on a polyester fabric to obtain an oil-resistant and water-resistant layer, then bonding and compounding the oil-resistant and water-resistant layer with a comfortable layer fabric, and cutting to obtain the comfortable oil-resistant and water-resistant work clothes. The comfortable oil-resistant and water-blocking work clothes are obtained. According to the invention, the problem that the durability of the existing work clothes is reduced due to difficulty in cleaning greasy dirt is solved, and a polysiloxane structure on the surface is formed by hydrolysis and hot press molding of trichloromethylsilane and trichloroethyl silane, so that not only is excellent hydrophobic and oleophobic properties shown, but also excellent wear resistance can be achieved, and greasy dirt permeation is effectively prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a method for preparing comfortable oil-resistant and water-resistant work clothes. Background Art

[0002] Work clothes are specially made for work needs. The general clothing fabrics mainly include plant fiber fabrics, chemical synthetic fiber fabrics, plush fiber fabrics and mixed fiber fabrics. Workers must wear work clothes to enter the work area. However, in the work environment, they will be exposed to oil and water, and the oil and water will directly adhere to the work clothes. Although the existing work clothes can basically prevent direct oil infiltration, the oil is difficult to clean, and with the extension of time and the increase of oil pollution, the durability of the work clothes is getting worse and worse. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a method for preparing comfortable oil-resistant and water-blocking work clothes, which solves the problem that it is difficult to clean the oil stains on the existing work clothes, resulting in reduced durability of the work clothes. Trichloromethylsilane and trichloroethylsilane are hydrolyzed and hot-pressed to form a polysiloxane structure on the surface, which not only exhibits excellent hydrophobicity and oleophobicity, but also has excellent wear resistance, effectively preventing oil stain penetration.

[0004] In order to achieve the above technical objectives, the technical solution of the present invention is:

[0005] A method for preparing comfortable oil-resistant and water-resistant work clothes comprises the following steps:

[0006] Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasound for 10-20 minutes, and obtaining a pretreated fabric base cloth through alkali washing, acid washing, and drying, wherein the fabric base cloth is made of polyester fabric, the volume proportion of ethanol in the ethanol aqueous solution is 30-50%, the temperature of low-temperature ultrasound is 5-10°C, the ultrasonic frequency is 80-100kHz, the alkali washing uses a sodium hydroxide solution with a pH of 8.5-9.5, the acid washing uses a hydrochloric acid solution with a pH of 5.5-6.5, the drying temperature is 80-100°C, and the time is 30-60 minutes; in this step, the fabric base cloth is cleaned by low-temperature ultrasound in the ethanol aqueous solution, and impurities such as floating dust are removed, and at the same time, the geopolymer of the polyester base cloth is removed by continuous operation of alkali washing, acid washing and drying, thereby forming a completely exposed polyester;

[0007] Step 2: spray ethyl acetate on the pretreated fabric base and let it stand for 20-30 minutes, then soak it in ethanol and stir it evenly, take it out and dry it to obtain the roughened fabric base, and the spray amount of ethyl acetate is 2-4mL / cm 2, the standing temperature is 20-30°C, the mass concentration of the pretreated fabric base cloth in ethanol is 20-40g / L, the stirring speed is 300-500r / min, and the drying temperature is 80-90°C; in this step, ethyl acetate is sprayed on the surface of the pretreated fabric base cloth, and the penetration corrosion of ethyl acetate on polyester is used to form a rough surface of the pretreated fabric base cloth, and finally the ethyl acetate is diluted with ethanol and dried to obtain a fabric base cloth with a roughened surface;

[0008] Step 3: Add polyvinyl alcohol to water and stir evenly to form a dissolved solution, then homogeneously coat it on the surface of the pretreated fabric base fabric, and dry it after standing and penetrating to obtain the initial plated fabric. The concentration of polyvinyl alcohol in water is 50-100g / L, the stirring speed for uniform stirring is 300-500r / min, and the coating amount of the homogeneous coating is 10-15mL / cm 2 The temperature of the static penetration is 30-40°C, and the temperature of the drying is 110-130°C. This step utilizes the water solubility of polyvinyl alcohol to form a dilute solution, and forms a homogeneous dispersion after coating, and forms a stable penetration during the static process to fill the pores of the fabric base fabric.

[0009] Step 4, adding trichloromethylsilane and trichloroethylsilane to diethyl ether and stirring evenly, and adding ethyl acetate, and obtaining a silane mixture after sufficient stirring, wherein the mass ratio of trichloromethylsilane to trichloroethylsilane is 3:1-2, the concentration of trichloromethylsilane in diethyl ether is 100-300 g / L, the stirring speed for uniform stirring is 300-500 r / min, and the amount of ethyl acetate added is 20-30% of the volume of diethyl ether;

[0010] Step 5: spray the silane mixture onto the upper surface of the primary plated fabric, and then heat press at a constant temperature after standing to obtain an oil-resistant and water-resistant layer. The spraying amount is 5-10 mL / cm 2 , the static atmosphere is a mixed atmosphere of nitrogen and water vapor, and the volume ratio of nitrogen to water vapor is 8-10:1, the temperature is 40-50°C, and the temperature of the constant temperature hot pressing is 255-260°C; this step utilizes the spraying of the silane mixture on the upper surface of the primary plated fabric to form a silane liquid film, the liquid film forms an in-situ hydrolysis to form trihydroxymethylsilane and trihydroxyethylsilane during static state, and forms a reaction during constant temperature hot pressing, at which time the polyvinyl alcohol is in-situ polycondensed to form a polycondensate with conductive properties, and at the same time, trihydroxymethylsilane and trihydroxyethylsilane form an in-situ polycondensation reaction to form polysiloxane, and are directly extruded into the polyester fabric during hot pressing, thereby achieving wear resistance and hydrophobic and oil-resistant properties;

[0011] Step 6, bonding and compounding the comfort layer fabric on the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes, wherein the comfort layer fabric is a blended fabric of nylon Sup lon-FC01 fiber, and the mass ratio of the comfort layer fabric to the oil-proof and water-proof layer is 3:2-3.

[0012] It can be seen from the above description that the present invention has the following advantages:

[0013] 1. The present invention solves the problem that the existing work clothes are difficult to clean up and the durability of the work clothes is reduced. The polysiloxane structure on the surface is formed by hydrolyzing and hot pressing trichloromethylsilane and trichloroethylsilane, which not only exhibits excellent hydrophobicity and oleophobicity, but also has excellent wear resistance, effectively preventing the penetration of oil stains.

[0014] 2. The present invention uses polyvinyl alcohol as a dopant to form flow penetration during static standing and is converted into a conductive polycondensate during hot pressing, thereby solving the static electricity problem of polyester fabrics.

[0015] 3. The present invention uses ethyl acetate as an etchant, which can effectively corrode polyester fabrics and ensure that the polyester surface is roughened to improve the connectivity of polysiloxane on the polyester surface. The fluidity of polyvinyl alcohol itself can ensure that the surface of the polyester fabric base cloth is exposed, making it convenient for polyester to contact with ethyl acetate. DETAILED DESCRIPTION

[0016] The present invention is described in detail with reference to the embodiments, but no limitation is imposed on the claims of the present invention.

[0017] Example 1

[0018] A method for preparing comfortable oil-resistant and water-resistant work clothes comprises the following steps:

[0019] Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasound for 10 minutes, and performing alkali washing, acid washing, and drying to obtain a pretreated fabric base cloth, wherein the fabric base cloth is made of polyester fabric, the volume proportion of ethanol in the ethanol aqueous solution is 30%, the temperature of low-temperature ultrasound is 5°C, the ultrasonic frequency is 80kHz, the alkali washing adopts a sodium hydroxide solution with a pH of 8.5, the acid washing adopts a hydrochloric acid solution with a pH of 5.5, the drying temperature is 80°C, and the time is 30 minutes;

[0020] Step 2: spray ethyl acetate on the pretreated fabric base and let it stand for 20 minutes, then soak it in ethanol and stir it evenly, take it out and dry it to obtain the roughened fabric base, and the spray amount of ethyl acetate is 2mL / cm 2, the standing temperature is 20°C, the mass concentration of the pretreated fabric base fabric in ethanol is 20g / L, the stirring speed is 300r / min, and the drying temperature is 80°C;

[0021] Step 3: Add polyvinyl alcohol to water and stir evenly to form a dissolved solution, then homogeneously coat it on the surface of the pretreated fabric base fabric, and dry it after standing and penetrating to obtain the initial plated fabric. The concentration of polyvinyl alcohol in water is 50g / L, the stirring speed is 300r / min, and the coating amount of the homogeneous coating is 10mL / cm 2 The temperature of the static penetration is 30°C, and the temperature of the drying is 110°C;

[0022] Step 4, adding trichloromethylsilane and trichloroethylsilane to diethyl ether and stirring evenly, and adding ethyl acetate, and obtaining a silane mixture after sufficient stirring, wherein the mass ratio of trichloromethylsilane to trichloroethylsilane is 3:1, the concentration of trichloromethylsilane in diethyl ether is 100 g / L, the stirring speed for uniform stirring is 300 r / min, and the amount of ethyl acetate added is 20% of the volume of diethyl ether;

[0023] Step 5: spray the silane mixture onto the upper surface of the primary plated fabric, and then heat press at a constant temperature after standing to obtain an oil-resistant and water-resistant layer. The spraying amount is 5 mL / cm 2 The static atmosphere is a mixed atmosphere of nitrogen and water vapor, and the volume ratio of nitrogen to water vapor is 8:1, the temperature is 40°C, and the temperature of the constant temperature hot pressing is 255°C;

[0024] Step 6, bonding and compounding the comfort layer fabric on the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes, wherein the comfort layer fabric is a nylon Sup lon-FC01 fiber blended fabric, and the mass ratio of the comfort layer fabric to the oil-proof and water-proof layer is 3:2.

[0025] Example 2

[0026] A method for preparing comfortable oil-resistant and water-resistant work clothes comprises the following steps:

[0027] Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasound for 20 minutes, and obtaining a pretreated fabric base cloth through alkali washing, acid washing, and drying, wherein the fabric base cloth is made of polyester fabric, the volume proportion of ethanol in the ethanol aqueous solution is 50%, the temperature of low-temperature ultrasound is 10°C, the ultrasonic frequency is 100kHz, the alkali washing adopts a sodium hydroxide solution with a pH of 9.5, the acid washing adopts a hydrochloric acid solution with a pH of 6.5, the drying temperature is 100°C, and the time is 60 minutes;

[0028] Step 2: spray ethyl acetate on the pretreated fabric base and let it stand for 30 minutes, then soak it in ethanol and stir it evenly, take it out and dry it to obtain the roughened fabric base, and the spray amount of ethyl acetate is 4mL / cm 2 , the standing temperature is 30°C, the mass concentration of the pretreated fabric base fabric in ethanol is 40g / L, the stirring speed is 500r / min, and the drying temperature is 90°C;

[0029] Step 3: Add polyvinyl alcohol to water and stir evenly to form a dissolved solution, then homogeneously coat it on the surface of the pretreated fabric base fabric, and dry it after standing and penetrating to obtain the initial plated fabric. The concentration of polyvinyl alcohol in water is 100g / L, the stirring speed is 500r / min, and the coating amount of the homogeneous coating is 15mL / cm 2 , the temperature of the static penetration is 40°C, and the temperature of the drying is 130°C;

[0030] Step 4, adding trichloromethylsilane and trichloroethylsilane to diethyl ether and stirring evenly, and adding ethyl acetate, and obtaining a silane mixture after sufficient stirring, wherein the mass ratio of trichloromethylsilane to trichloroethylsilane is 3:2, the concentration of trichloromethylsilane in diethyl ether is 300 g / L, the stirring speed for uniform stirring is 500 r / min, and the amount of ethyl acetate added is 30% of the volume of diethyl ether;

[0031] Step 5: spray the silane mixture onto the upper surface of the primary plated fabric, and then heat press at a constant temperature after standing to obtain an oil-resistant and water-resistant layer. The spraying amount is 10 mL / cm 2 The static atmosphere is a mixed atmosphere of nitrogen and water vapor, and the volume ratio of nitrogen to water vapor is 10:1, the temperature is 50°C, and the temperature of the constant temperature hot pressing is 260°C;

[0032] Step 6, bonding and compounding the comfort layer fabric on the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes, wherein the comfort layer fabric is a blended fabric of nylon Sup lon-FC01 fiber, and the mass ratio of the comfort layer fabric to the oil-proof and water-proof layer is 1:1.

[0033] Example 3

[0034] A method for preparing comfortable oil-resistant and water-resistant work clothes comprises the following steps:

[0035] Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasound for 15 minutes, and performing alkali washing, acid washing, and drying to obtain a pretreated fabric base cloth, wherein the fabric base cloth is made of polyester fabric, the volume proportion of ethanol in the ethanol aqueous solution is 40%, the temperature of low-temperature ultrasound is 8°C, the ultrasonic frequency is 90kHz, the alkali washing uses a sodium hydroxide solution with a pH of 9, the acid washing uses a hydrochloric acid solution with a pH of 6, the drying temperature is 90°C, and the time is 50 minutes;

[0036] Step 2: spray ethyl acetate on the pretreated fabric base and let it stand for 25 minutes, then soak it in ethanol and stir it evenly, take it out and dry it to obtain the roughened fabric base, and the spray amount of ethyl acetate is 3mL / cm 2 , the standing temperature is 25°C, the mass concentration of the pretreated fabric base fabric in ethanol is 30g / L, the stirring speed is 400r / min, and the drying temperature is 85°C;

[0037] Step 3: Add polyvinyl alcohol to water and stir evenly to form a dissolved solution, then homogeneously coat it on the surface of the pretreated fabric base fabric, and dry it after standing and penetrating to obtain the initial plated fabric. The concentration of polyvinyl alcohol in water is 80g / L, the stirring speed is 400r / min, and the coating amount of the homogeneous coating is 13mL / cm 2 The temperature of the static penetration is 35°C, and the temperature of the drying is 120°C;

[0038] Step 4, adding trichloromethylsilane and trichloroethylsilane to diethyl ether and stirring evenly, and adding ethyl acetate, and obtaining a silane mixture after sufficient stirring, wherein the mass ratio of trichloromethylsilane to trichloroethylsilane is 3:2, the concentration of trichloromethylsilane in diethyl ether is 200 g / L, the stirring speed for uniform stirring is 400 r / min, and the amount of ethyl acetate added is 25% of the volume of diethyl ether;

[0039] Step 5: spray the silane mixture onto the upper surface of the primary plated fabric, and then heat press at a constant temperature after standing to obtain an oil-resistant and water-resistant layer. The spraying amount is 8 mL / cm 2 The static atmosphere is a mixed atmosphere of nitrogen and water vapor, and the volume ratio of nitrogen to water vapor is 9:1, the temperature is 45°C, and the temperature of the constant temperature hot pressing is 255°C;

[0040] Step 6, bonding and compounding the comfort layer fabric on the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes, wherein the comfort layer fabric is a nylon Sup lon-FC01 fiber blended fabric, and the mass ratio of the comfort layer fabric to the oil-proof and water-proof layer is 3:2.

[0041] Comparative Example

[0042] A method for preparing comfortable oil-resistant and water-resistant work clothes comprises the following steps:

[0043] Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasound for 15 minutes, and performing alkali washing, acid washing, and drying to obtain a pretreated fabric base cloth, wherein the fabric base cloth is made of polyester fabric, the volume proportion of ethanol in the ethanol aqueous solution is 40%, the temperature of low-temperature ultrasound is 8°C, the ultrasonic frequency is 90kHz, the alkali washing uses a sodium hydroxide solution with a pH of 9, the acid washing uses a hydrochloric acid solution with a pH of 6, the drying temperature is 90°C, and the time is 50 minutes;

[0044] Step 2: spray ethyl acetate on the pretreated fabric base and let it stand for 25 minutes, then soak it in ethanol and stir it evenly, take it out and dry it to obtain the roughened fabric base, and the spray amount of ethyl acetate is 3mL / cm 2 , the standing temperature is 25°C, the mass concentration of the pretreated fabric base fabric in ethanol is 30g / L, the stirring speed is 400r / min, and the drying temperature is 85°C;

[0045] Step 3: Add polyvinyl alcohol to water and stir evenly to form a dissolved solution, then homogeneously coat it on the surface of the pretreated fabric base fabric, and dry it after standing and penetrating to obtain the initial plated fabric. The concentration of polyvinyl alcohol in water is 80g / L, the stirring speed is 400r / min, and the coating amount of the homogeneous coating is 13mL / cm 2 The temperature of the static penetration is 35°C, and the temperature of the drying is 120°C;

[0046] Step 4, placing the pre-plated fabric at rest and then hot pressing at a constant temperature to obtain an oil-resistant and water-resistant layer, wherein the resting temperature is 45° C. and the constant temperature hot pressing temperature is 255° C.;

[0047] Step 5, bonding and compounding the comfort layer fabric on the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes, wherein the comfort layer fabric is a nylon Sup lon-FC01 fiber blended fabric, and the mass ratio of the comfort layer fabric to the oil-proof and water-proof layer is 3:2.

[0048] Comparative Example 2

[0049] A method for preparing comfortable oil-resistant and water-resistant work clothes comprises the following steps:

[0050] Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasound for 15 minutes, and performing alkali washing, acid washing, and drying to obtain a pretreated fabric base cloth, wherein the fabric base cloth is made of polyester fabric, the volume proportion of ethanol in the ethanol aqueous solution is 40%, the temperature of low-temperature ultrasound is 8°C, the ultrasonic frequency is 90kHz, the alkali washing uses a sodium hydroxide solution with a pH of 9, the acid washing uses a hydrochloric acid solution with a pH of 6, the drying temperature is 90°C, and the time is 50 minutes;

[0051] Step 2: spray ethyl acetate on the pretreated fabric base and let it stand for 25 minutes, then soak it in ethanol and stir it evenly, take it out and dry it to obtain the roughened fabric base, and the spray amount of ethyl acetate is 3mL / cm 2 , the standing temperature is 25°C, the mass concentration of the pretreated fabric base fabric in ethanol is 30g / L, the stirring speed is 400r / min, and the drying temperature is 85°C;

[0052] Step 3, adding trichloromethylsilane and trichloroethylsilane to diethyl ether and stirring evenly, and adding ethyl acetate, and obtaining a silane mixture after sufficient stirring, wherein the mass ratio of trichloromethylsilane to trichloroethylsilane is 3:2, the concentration of trichloromethylsilane in diethyl ether is 200 g / L, the stirring speed for uniform stirring is 400 r / min, and the amount of ethyl acetate added is 25% of the volume of diethyl ether;

[0053] Step 4: spray the silane mixture onto the upper surface of the roughened fabric base fabric, and then heat press at a constant temperature after standing to obtain an oil-resistant and water-resistant layer. The spraying amount is 8 mL / cm 2 The static atmosphere is a mixed atmosphere of nitrogen and water vapor, and the volume ratio of nitrogen to water vapor is 9:1, the temperature is 45°C, and the temperature of the constant temperature hot pressing is 255°C;

[0054] Step 5, bonding and compounding the comfort layer fabric on the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes, wherein the comfort layer fabric is a nylon Sup lon-FC01 fiber blended fabric, and the mass ratio of the comfort layer fabric to the oil-proof and water-proof layer is 3:2.

[0055] Performance Testing

[0056] The fabrics prepared in Examples 1-3 and Comparative Examples 1-2 were tested as follows:

[0057]

[0058]

[0059] The above data show that the fabric provided by the technical solution has good hydrophobicity and oleophobicity, and with the silicone material as the surface, it exhibits excellent wear resistance; at the same time, after subsequent washing 100 times and rubbing 100 times, its hydrophobicity and oleophobicity remain basically unchanged. That is, the fabric in the technical solution has good oil and water resistance effect.

[0060] It is understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. A method for preparing comfortable oil-resistant and water-resistant work clothes, characterized in that: The preparation method comprises the following steps: Step 1, placing the fabric base cloth in an ethanol aqueous solution and performing low-temperature ultrasonic treatment for 10-20 minutes, and then alkali washing, acid washing, and drying to obtain a pretreated fabric base cloth; Step 2, spraying ethyl acetate on the pretreated fabric base cloth and letting it stand for 20-30 minutes, then soaking it in ethanol and stirring it evenly, taking it out and drying it to obtain a roughened fabric base cloth; Step 3, adding polyvinyl alcohol to water and stirring evenly to form a dissolving solution, and then uniformly coating the solution on the surface of the pretreated fabric base fabric, and drying the pre-plated fabric after standing and penetrating; Step 4, adding trichloromethylsilane and trichloroethylsilane to diethyl ether and stirring evenly, and adding ethyl acetate, and stirring sufficiently to obtain a silane mixture; Step 5, spraying the silane mixture onto the upper surface of the primary plated fabric, and then hot pressing at a constant temperature after standing to obtain an oil-resistant and water-resistant layer; Step 6, bonding and compounding the comfortable layer fabric to the inner side of the oil-proof and water-proof layer to obtain a comfortable oil-proof and water-proof fabric, and cutting to obtain a comfortable oil-proof and water-proof work clothes.

2. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The fabric base fabric in step 1 is made of polyester fabric; the volume proportion of ethanol in the ethanol aqueous solution is 30-50%, the temperature of low-temperature ultrasound is 5-10° C., and the ultrasonic frequency is 80-100 kHz.

3. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The alkaline washing in step 1 adopts a sodium hydroxide solution with a pH of 8.5-9.5, the acid washing adopts a hydrochloric acid solution with a pH of 5.5-6.5, and the drying temperature is 80-100° C. and the drying time is 30-60 min.

4. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The spray volume of ethyl acetate in step 2 is 2-4 mL / cm 2 The standing temperature is 20-30°C, the mass concentration of the pretreated fabric base cloth in ethanol is 20-40g / L, the stirring speed is 300-500r / min, and the drying temperature is 80-90°C.

5. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The concentration of polyvinyl alcohol in water in step 3 is 50-100 g / L, and the stirring speed for uniform stirring is 300-500 r / min.

6. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The coating amount of the homogeneous coating in step 3 is 10-15 mL / cm 2 The temperature of the static penetration is 30-40°C, and the temperature of the drying is 110-130°C.

7. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The mass ratio of trichloromethylsilane to trichloroethylsilane in step 4 is 3:1-2, the concentration of trichloromethylsilane in diethyl ether is 100-300 g / L, the stirring speed for uniform stirring is 300-500 r / min, and the amount of ethyl acetate added is 20-30% of the volume of diethyl ether.

8. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The amount of spray in step 5 is 5-10 mL / cm 2 The static atmosphere is a mixed atmosphere of nitrogen and water vapor, and the volume ratio of nitrogen to water vapor is 8-10:1, and the temperature is 40-50°C.

9. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The temperature of the constant temperature hot pressing in step 5 is 255-260°C.

10. The method for preparing the comfortable oil-resistant and water-resistant work clothes according to claim 1, characterized in that: The comfort layer fabric in step 6 is a Suplon-FC01 fiber blended fabric, and the mass ratio of the comfort layer fabric to the oil-resistant and water-blocking layer is 3:2-3.

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