Comfortable cool polyester fabric and preparation process thereof

Abstract

The invention relates to a comfortable and cool polyester fabric and a preparation process thereof, and belongs to the technical field of polyester fabrics. Dopamine hydrochloride is creatively utilized to carry out self-polymerization deposition on mica powder, the surface of mica powder is modified with a large number of amino groups, active sites are constructed, then glutaraldehyde serves as a cross-linking agent, primary cross-linking is completed through the action of amino and aldehyde groups, grafting of gamma-polyglutamic acid with a certain polymerization degree is achieved, and the gamma-polyglutamic acid grafted modified mica powder is obtained. Glutaraldehyde is continuously used as a cross-linking agent, nano talcum powder modified by gamma-aminopropyltrimethoxysilane is added, secondary cross-linking is completed, compounding of the two mineral particles is achieved, novel functional particles are prepared, the novel functional particles and polyester yarn are stirred and mixed in deionized water under ultrasonic high temperature, and the cool-feeling yarn is obtained. The polyester fabric is prepared after conventional operations such as knitting and dyeing, has excellent cool feeling effect and comfort, and has good market application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of polyester fabrics, and in particular relates to a comfortable cool polyester fabric and a preparation process thereof. Background Art

[0002] With the continuous development of science and technology and the continuous improvement of living standards, people gradually put forward higher requirements on daily wear fabrics. Among them, fabrics with cooling properties, i.e. cooling fabrics, are fabrics that can quickly take away body surface heat when in contact with the skin, thereby forming a cool feeling. They are deeply loved by people due to their many advantages such as comfort and practicality, especially cooling polyester fabrics. The market size is expanding day by day. However, the existing cooling polyester fabrics still have certain disadvantages that limit their actual application effects. This is because their ability to form a cool feeling is still very limited, and their cooling properties are not sufficient. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a comfortable cool polyester fabric and a preparation process thereof. The present invention creatively utilizes dopamine hydrochloride to self-polymerize and precipitate mica powder, so that its surface is modified with a large number of amino groups to construct active sites, and then uses glutaraldehyde as a cross-linking agent to complete a primary cross-linking through the action of amino and aldehyde groups to achieve the grafting of γ-polyglutamic acid with a certain degree of polymerization, and then continues to use glutaraldehyde as a cross-linking agent, adds nano talc modified with γ-aminopropyltrimethoxysilane, completes secondary cross-linking, and realizes the composite of two mineral particles, thereby preparing a new type of functional granular material, which is mixed with polyester yarn in deionized water by high-temperature stirring under ultrasound to obtain a cool yarn, and after conventional operations such as knitting and dyeing, a polyester fabric is prepared, which has excellent cool effect and comfort, and has good market application prospects.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A preparation process of a comfortable cool polyester fabric, the preparation process comprising the following steps:

[0006] (1) adding functional granules and polyester yarn into deionized water, then heating and stirring under ultrasound, filtering, removing the filtrate, and naturally drying to constant weight to obtain a cool yarn;

[0007] (2) knitting the cool yarn to obtain a knitted fabric;

[0008] (3) The knitted fabric is dyed and shaped, and the preparation is completed.

[0009] As a preferred technical solution of the present invention, the mass ratio of the deionized water, the functional granules and the polyester yarn in step (1) is 100:2:20-25.

[0010] As a preferred technical solution of the present invention, the functional granules in step (1) are prepared by the following steps:

[0011] Step A: adding 40-50 parts by weight of anhydrous ethanol, 3-3.5 parts by weight of mica powder and 0.8-1 parts by weight of dopamine hydrochloride to 150 parts by weight of Tris-HCl buffer, and then stirring for 5-10 minutes at room temperature in an ultrasonic wave with a power of 300-400W under a nitrogen atmosphere, and then adjusting the pH to 8.3-8.5 with an alkali solution, stirring for 2-2.5 hours at room temperature under an air atmosphere, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 60-70°C until constant weight, to obtain component A;

[0012] Step B: adding 2-3 parts by weight of component A, 0.1-0.2 parts by weight of glutaraldehyde and 0.5 parts by weight of γ-polyglutamic acid to 80-100 parts by weight of deionized water, stirring at 75-80° C. for 12-14 hours in an ultrasonic wave with a power of 300-400 W, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 60-70° C. until constant weight, to obtain component B;

[0013] Step C: Add 2-3 parts by weight of component B, 0.1-0.2 parts by weight of glutaraldehyde and 0.3-0.4 parts by weight of amino-modified talc to 80-100 parts by weight of deionized water, then stir at 75-80° C. for 22-24 hours in an ultrasonic wave with a power of 300-400 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60-70° C. until constant weight, and the preparation is completed.

[0014] Furthermore, the pH of the Tris-HCl buffer in step A is 7.4.

[0015] Furthermore, the particle size of the mica powder in step A is 2-3 microns.

[0016] Furthermore, the alkali solution in step A refers to a sodium hydroxide solution with a mass fraction of 10%.

[0017] Furthermore, the molecular weight of the γ-polyglutamic acid in step B is 50-80 kDa.

[0018] Furthermore, the amino-modified talc in step C is prepared by the following steps:

[0019] Step a: add 0.5 parts by weight of deionized water, 2-3 parts by weight of nano talc and 0.4-0.5 parts by weight of γ-aminopropyltrimethoxysilane to 80-100 parts by weight of anhydrous ethanol, then stir at 70-75° C. for 24 hours in an ultrasonic power of 300-400 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60-70° C. until constant weight, and the preparation is completed.

[0020] As a preferred technical solution of the present invention, the ultrasonic heating and stirring in step (1) refers to heating to 60-70°C at a heating rate of 3-5°C / min in an ultrasonic power of 300-400W and then stirring at a constant temperature for 2h.

[0021] As a preferred technical solution of the present invention, the knitted fabric in step (2) has a plain knit structure; the knitted fabric has a gram weight of 150-170 g / m 2 .

[0022] As a preferred technical solution of the present invention, the dyeing in step (3) refers to adding dye solution to the knitted fabric, then immersing it at a constant temperature of 90-95°C for 60 minutes, naturally cooling it to room temperature, taking it out, washing it with deionized water, and centrifuging it for dehydration; the mass ratio of the knitted fabric to the dye solution is 1:10; the dye solution refers to a solution formed after the dye is completely dissolved in deionized water; the concentration of the dye solution is 10-12g / L; the dye is at least one of reactive yellow M-3RE, reactive black KN-B and reactive red X-3B; the rotation speed of the centrifugal dehydration is 200-400r / min; and the time of the centrifugal dehydration is 5min.

[0023] As a preferred technical solution of the present invention, the shaping in step (3) refers to shaping using a shaping machine; the working parameters of the shaping machine are temperature 160-180°C, speed 20-25m / min, overfeed 20%, and pressure 2.5-3 pounds.

[0024] A comfortable cool polyester fabric prepared by the preparation process as described above.

[0025] Beneficial effects of the present invention:

[0026] (1) The present invention creatively utilizes dopamine hydrochloride to self-polymerize and deposit mica powder, so that its surface is modified with a large number of amino groups to construct active sites, and then uses glutaraldehyde as a cross-linking agent to complete a primary cross-linking through the action of amino and aldehyde groups to achieve the grafting of γ-polyglutamic acid with a certain degree of polymerization, and then continues to use glutaraldehyde as a cross-linking agent, adds nano talc powder modified with γ-aminopropyltrimethoxysilane, completes secondary cross-linking, and achieves the composite of two mineral particles, thereby preparing a new type of functional granular material, which is mixed with polyester yarn in deionized water under ultrasonic high-temperature stirring to obtain a cool yarn, and after conventional operations such as knitting and dyeing, a polyester fabric is prepared, which has excellent cooling effect and comfort, and has good market application prospects.

[0027] (2) The present invention creatively utilizes dopamine hydrochloride to self-polymerize and deposit mica powder, so that its surface is modified with a large number of amino groups. After the deposition of organic polymers, it can provide active sites for the next step of cross-linking. Then, glutaraldehyde is used as a cross-linking agent to successively cross-link and composite γ-polyglutamic acid and nano-talc modified with γ-aminopropyltrimethoxysilane. The introduction of γ-polyglutamic acid can exert excellent water absorption and water conduction effects. On the other hand, the composite of the two mineral particles enables the polyester fabric to better achieve synchronous and continuous heat conduction-water absorption / water conduction at the same position when in contact with the skin, and the overall comfort and cooling effect are better.

[0028] (3) The technical solution of the present invention is still based on the technology of adding inorganic mineral particles. Mica powder mainly plays a thermal conductive role, while talcum powder utilizes its hydrophilicity to achieve rapid absorption of sweat, and the comfort is very good. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in combination with embodiments.

[0030] The nano-talc powder in all the embodiments and comparative examples of the present invention is directly purchased from the market, and is nano-grade talc powder purchased from Shanghai Yuanjiang Chemical Co., Ltd.

[0031] Example 1

[0032] A preparation process of a comfortable cool polyester fabric, the preparation process comprising the following steps:

[0033] (1) adding functional granules and polyester yarn into deionized water, then heating and stirring under ultrasound, filtering, removing the filtrate, and naturally drying to constant weight to obtain a cool yarn;

[0034] (2) knitting the cool yarn to obtain a knitted fabric;

[0035] (3) The knitted fabric is dyed and shaped, and the preparation is completed.

[0036] The mass ratio of the deionized water, the functional granules and the polyester yarn in step (1) is 100:2:20.

[0037] The functional granules in step (1) are prepared by the following steps:

[0038] Step A: Add 40 parts by weight of anhydrous ethanol, 3 parts by weight of mica powder and 0.8 parts by weight of dopamine hydrochloride to 150 parts by weight of Tris-HCl buffer, and then stir and mix at room temperature for 5 minutes in an ultrasonic wave with a power of 300 W under a nitrogen atmosphere, then adjust the pH to 8.3 with an alkali solution, stir at room temperature for 2 hours under an air atmosphere, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60° C. until constant weight, to obtain component A;

[0039] Step B: adding 2 parts by weight of component A, 0.1 parts by weight of glutaraldehyde and 0.5 parts by weight of γ-polyglutamic acid to 80 parts by weight of deionized water, stirring at 75° C. for 12 h in an ultrasonic wave with a power of 300 W, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 60° C. until constant weight, to obtain component B;

[0040] Step C: Add 2 parts by weight of component B, 0.1 parts by weight of glutaraldehyde and 0.3 parts by weight of amino-modified talc to 80 parts by weight of deionized water, then stir at 75°C for 22 hours in an ultrasonic state with a power of 300 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60°C until constant weight, and the preparation is completed.

[0041] The pH of the Tris-HCl buffer in step A is 7.4.

[0042] The particle size of the mica powder in step A is 2 microns.

[0043] The alkali solution in step A refers to a sodium hydroxide solution with a mass fraction of 10%.

[0044] The molecular weight of the γ-polyglutamic acid in step B is 50 kDa.

[0045] The amino-modified talc powder of step C is prepared by the following steps:

[0046] Step a: add 0.5 parts by weight of deionized water, 2 parts by weight of nano-talc and 0.4 parts by weight of γ-aminopropyltrimethoxysilane to 80 parts by weight of anhydrous ethanol, then stir at 70°C for 24 hours in an ultrasonic state with a power of 300 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60°C until constant weight, and the preparation is completed.

[0047] The ultrasonic heating and stirring in step (1) refers to heating the mixture to 60°C at a heating rate of 3°C / min in an ultrasonic environment with a power of 300 W and then stirring at a constant temperature for 2 hours.

[0048] The knitted fabric of step (2) has a plain knit structure and a gram weight of 150 g / m 2 .

[0049] The dyeing in step (3) refers to adding dye solution to the knitted fabric, then immersing it at a constant temperature of 90°C for 60 minutes, naturally cooling it to room temperature, taking it out, washing it with deionized water, and centrifuging it for dehydration; the mass ratio of the knitted fabric to the dye solution is 1:10; the dye solution refers to a solution formed after the dye is completely dissolved in deionized water; the concentration of the dye solution is 10g / L; the dye is Reactive Yellow M-3RE; the speed of the centrifugal dehydration is 200r / min; and the time of the centrifugal dehydration is 5min.

[0050] The shaping in step (3) refers to shaping using a shaping machine; the working parameters of the shaping machine are temperature 160° C., speed 20 m / min, overfeed 20%, and pressure 2.5 pounds.

[0051] A comfortable cool polyester fabric prepared by the preparation process as described above.

[0052] Example 2

[0053] A preparation process of a comfortable cool polyester fabric, the preparation process comprising the following steps:

[0054] (1) adding functional granules and polyester yarn into deionized water, then heating and stirring under ultrasound, filtering, removing the filtrate, and naturally drying to constant weight to obtain a cool yarn;

[0055] (2) knitting the cool yarn to obtain a knitted fabric;

[0056] (3) The knitted fabric is dyed and shaped, and the preparation is completed.

[0057] The mass ratio of the deionized water, the functional granules and the polyester yarn in step (1) is 100:2:25.

[0058] The functional granules in step (1) are prepared by the following steps:

[0059] Step A: Add 50 parts by weight of anhydrous ethanol, 3.5 parts by weight of mica powder and 1 part by weight of dopamine hydrochloride to 150 parts by weight of Tris-HCl buffer, and then stir and mix at room temperature for 10 minutes in an ultrasonic wave with a power of 400 W under a nitrogen atmosphere, then adjust the pH to 8.5 with an alkali solution, stir at room temperature for 2.5 hours under an air atmosphere, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 70° C. until constant weight, to obtain component A;

[0060] Step B: adding 3 parts by weight of component A, 0.2 parts by weight of glutaraldehyde and 0.5 parts by weight of γ-polyglutamic acid to 100 parts by weight of deionized water, stirring at 80° C. for 14 h in an ultrasonic wave with a power of 400 W, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 70° C. until constant weight, to obtain component B;

[0061] Step C: Add 3 parts by weight of component B, 0.2 parts by weight of glutaraldehyde and 0.4 parts by weight of amino-modified talc to 100 parts by weight of deionized water, then stir at 80°C for 24 hours in an ultrasonic state with a power of 400 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 70°C until constant weight, and the preparation is completed.

[0062] The pH of the Tris-HCl buffer in step A is 7.4.

[0063] The particle size of the mica powder in step A is 3 microns.

[0064] The alkali solution in step A refers to a sodium hydroxide solution with a mass fraction of 10%.

[0065] The molecular weight of the γ-polyglutamic acid in step B is 80 kDa.

[0066] The amino-modified talc powder of step C is prepared by the following steps:

[0067] Step a: add 0.5 parts by weight of deionized water, 3 parts by weight of nano talc and 0.5 parts by weight of γ-aminopropyltrimethoxysilane to 100 parts by weight of anhydrous ethanol, then stir at 75°C for 24 hours in an ultrasonic power of 400 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 70°C until constant weight, and the preparation is completed.

[0068] The ultrasonic heating and stirring in step (1) refers to heating the mixture to 70°C at a heating rate of 5°C / min in an ultrasonic environment with a power of 400 W and then stirring at a constant temperature for 2 hours.

[0069] The knitted fabric of step (2) has a plain knit structure; the knitted fabric has a gram weight of 170 g / m2 .

[0070] The dyeing in step (3) refers to adding dye solution to the knitted fabric, then immersing it at a constant temperature of 95°C for 60 minutes, naturally cooling it to room temperature, taking it out, washing it with deionized water, and centrifuging it for dehydration; the mass ratio of the knitted fabric to the dye solution is 1:10; the dye solution refers to a solution formed after the dye is completely dissolved in deionized water; the concentration of the dye solution is 12g / L; the dye is Reactive Yellow M-3RE; the rotation speed of the centrifugal dehydration is 400r / min; and the time of the centrifugal dehydration is 5min.

[0071] The shaping in step (3) refers to shaping using a shaping machine; the working parameters of the shaping machine are temperature 180° C., speed 25 m / min, overfeed 20%, and pressure 3 pounds.

[0072] A comfortable cool polyester fabric prepared by the preparation process as described above.

[0073] Example 3

[0074] A preparation process of a comfortable cool polyester fabric, the preparation process comprising the following steps:

[0075] (1) adding functional granules and polyester yarn into deionized water, then heating and stirring under ultrasound, filtering, removing the filtrate, and naturally drying to constant weight to obtain a cool yarn;

[0076] (2) knitting the cool yarn to obtain a knitted fabric;

[0077] (3) The knitted fabric is dyed and shaped, and the preparation is completed.

[0078] The mass ratio of the deionized water, the functional granules and the polyester yarn in step (1) is 100:2:23.

[0079] The functional granules in step (1) are prepared by the following steps:

[0080] Step A: adding 45 parts by weight of anhydrous ethanol, 3.3 parts by weight of mica powder and 0.9 parts by weight of dopamine hydrochloride to 150 parts by weight of Tris-HCl buffer, and then stirring and mixing at room temperature for 8 minutes in an ultrasonic wave with a power of 350 W under a nitrogen atmosphere, then adjusting the pH to 8.4 with an alkali solution, stirring at room temperature for 2.3 hours under an air atmosphere, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 65° C. until constant weight, to obtain component A;

[0081] Step B: adding 2.5 parts by weight of component A, 0.15 parts by weight of glutaraldehyde and 0.5 parts by weight of γ-polyglutamic acid to 90 parts by weight of deionized water, stirring at 78° C. for 13 hours in an ultrasonic wave with a power of 350 W, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 65° C. until constant weight, to obtain component B;

[0082] Step C: Add 2.5 parts by weight of component B, 0.15 parts by weight of glutaraldehyde and 0.35 parts by weight of amino-modified talc to 90 parts by weight of deionized water, then stir at 78°C for 23 hours in an ultrasonic state with a power of 350 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 65°C until constant weight, and the preparation is completed.

[0083] The pH of the Tris-HCl buffer in step A is 7.4.

[0084] The particle size of the mica powder in step A is 2 microns.

[0085] The alkali solution in step A refers to a sodium hydroxide solution with a mass fraction of 10%.

[0086] The molecular weight of the γ-polyglutamic acid in step B is 70 kDa.

[0087] The amino-modified talc powder of step C is prepared by the following steps:

[0088] Step a: add 0.5 parts by weight of deionized water, 2.5 parts by weight of nano-talc and 0.45 parts by weight of γ-aminopropyltrimethoxysilane to 90 parts by weight of anhydrous ethanol, then stir at 73°C for 24 hours in an ultrasonic wave with a power of 350 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 65°C until constant weight, and the preparation is completed.

[0089] The ultrasonic heating and stirring in step (1) refers to heating to 65° C. at a heating rate of 4° C. / min in an ultrasonic power of 350 W and then stirring at a constant temperature for 2 hours.

[0090] The knitted fabric of step (2) has a plain knit structure and a gram weight of 160 g / m 2 .

[0091] The dyeing in step (3) refers to adding dye solution to the knitted fabric, then immersing it at a constant temperature of 93°C for 60 minutes, naturally cooling it to room temperature, taking it out, washing it with deionized water, and centrifuging it for dehydration; the mass ratio of the knitted fabric to the dye solution is 1:10; the dye solution refers to a solution formed after the dye is completely dissolved in deionized water; the concentration of the dye solution is 11g / L; the dye is Reactive Yellow M-3RE; the rotation speed of the centrifugal dehydration is 300r / min; and the time of the centrifugal dehydration is 5min.

[0092] The shaping in step (3) refers to shaping using a shaping machine; the working parameters of the shaping machine are temperature 170° C., speed 23 m / min, overfeed 20%, and pressure 2.8 pounds.

[0093] A comfortable cool polyester fabric prepared by the preparation process as described above.

[0094] Comparative Example 1

[0095] On the basis of Example 1, 0.8 parts by weight of dopamine hydrochloride in step A was changed to 1.2 parts by weight of dopamine hydrochloride, and the rest remained unchanged.

[0096] Comparative Example 2

[0097] Based on Example 1, the molecular weight of γ-polyglutamic acid in step B was changed to 35 kDa, and the rest remained unchanged.

[0098] Comparative Example 3

[0099] On the basis of Example 1, 0.1 parts by weight of glutaraldehyde in step C was replaced by 0.1 parts by weight of deionized water, and the rest remained unchanged.

[0100] Comparative Example 4

[0101] On the basis of Example 1, the functional granules in step (1) were replaced with an equal weight of deionized water, and the rest remained unchanged.

[0102] Test Example 1

[0103] Cooling effect test:

[0104] Here are the steps:

[0105] (1) Cutting and sewing the comfortable cool polyester fabrics prepared in Examples 1-3 and Comparative Examples 1-4 respectively to obtain test clothes of the same thickness;

[0106] (2) 20 volunteers were selected to stay in an indoor environment with a room temperature of 35°C and a relative humidity of 40% for 15 minutes, and then put on the above-mentioned test clothes and scored the cooling effect;

[0107] (3) The scoring rule is 0-100 points. The higher the score, the better the cooling effect. The scores are rounded up, and the results are averaged and rounded up to integers.

[0108] Table 1. Cooling effect test results

[0109]

[0110]

[0111] From the comparison between Example 1 and Comparative Examples 1-4 in Test Example 1, it can be seen that the comfortable cool polyester fabric prepared by the present invention has an excellent cool effect and good comfort.

[0112] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A preparation process of a comfortable cool polyester fabric, characterized in that: The preparation process comprises the following steps: (1) adding functional granules and polyester yarn into deionized water, then heating and stirring under ultrasound, filtering, removing the filtrate, and naturally drying to constant weight to obtain a cool yarn; (2) knitting the cool yarn to obtain a knitted fabric; (3) The knitted fabric is dyed and shaped, and the preparation is completed.

2. The preparation process of a comfortable cool polyester fabric according to claim 1, characterized in that: The mass ratio of the deionized water, the functional granules and the polyester yarn in step (1) is 100:2:20-25.

3. The preparation process of a comfortable cool polyester fabric according to claim 1, characterized in that: The functional granules in step (1) are prepared by the following steps: Step A: adding 40-50 parts by weight of anhydrous ethanol, 3-3.5 parts by weight of mica powder and 0.8-1 parts by weight of dopamine hydrochloride to 150 parts by weight of Tris-HCl buffer, and then stirring for 5-10 minutes at room temperature in an ultrasonic wave with a power of 300-400W under a nitrogen atmosphere, and then adjusting the pH to 8.3-8.5 with an alkali solution, stirring for 2-2.5 hours at room temperature under an air atmosphere, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 60-70°C until constant weight, to obtain component A; Step B: adding 2-3 parts by weight of component A, 0.1-0.2 parts by weight of glutaraldehyde and 0.5 parts by weight of γ-polyglutamic acid to 80-100 parts by weight of deionized water, stirring at 75-80° C. for 12-14 hours in an ultrasonic wave with a power of 300-400 W, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 60-70° C. until constant weight, to obtain component B; Step C: Add 2-3 parts by weight of component B, 0.1-0.2 parts by weight of glutaraldehyde and 0.3-0.4 parts by weight of amino-modified talc to 80-100 parts by weight of deionized water, then stir at 75-80° C. for 22-24 hours in an ultrasonic wave with a power of 300-400 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60-70° C. until constant weight, and the preparation is completed.

4. The preparation process of a comfortable cool polyester fabric according to claim 3, characterized in that: The particle size of the mica powder in step A is 2-3 microns.

5. The preparation process of a comfortable cool polyester fabric according to claim 3, characterized in that: The molecular weight of the γ-polyglutamic acid in step B is 50-80 kDa.

6. The preparation process of a comfortable cool polyester fabric according to claim 3, characterized in that: The amino-modified talc powder of step C is prepared by the following steps: Step a: add 0.5 parts by weight of deionized water, 2-3 parts by weight of nano talc and 0.4-0.5 parts by weight of γ-aminopropyltrimethoxysilane to 80-100 parts by weight of anhydrous ethanol, then stir at 70-75° C. for 24 hours in an ultrasonic power of 300-400 W, filter, remove the filtrate, wash with deionized water, and finally vacuum dry at 60-70° C. until constant weight, and the preparation is completed.

7. The preparation process of a comfortable cool polyester fabric according to claim 1, characterized in that: The ultrasonic heating and stirring in step (1) refers to heating the mixture to 60-70°C at a heating rate of 3-5°C / min in an ultrasonic environment with a power of 300-400 W and then stirring at a constant temperature for 2 hours.

8. The preparation process of a comfortable cool polyester fabric according to claim 1, characterized in that: The knitted fabric of step (2) has a plain knit structure; the knitted fabric has a gram weight of 150-170 g / m 2 .

9. The preparation process of a comfortable cool polyester fabric according to claim 1, characterized in that: The shaping in step (3) refers to shaping using a shaping machine; the working parameters of the shaping machine are temperature 160-180° C., speed 20-25 m / min, overfeed 20%, and pressure 2.5-3 pounds.

10. A comfortable cool polyester fabric prepared by the preparation process according to any one of claims 1 to 9.

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