Preparation process of anti-wrinkle breathable fabric

Abstract

The invention relates to a preparation process of an anti-wrinkle breathable fabric, and belongs to the technical field of breathable fabrics. The preparation technology of the anti-wrinkle breathable fabric comprises the following steps that S1, 50 wt% polyester and 50 wt% cotton blended yarn serves as warp yarn, winding is conducted through a warping machine, and a blended fabric is obtained; s2, the blended fabric is soaked in an alkaline solution, filtering, washing and vacuum drying are conducted, and a pretreated fabric is obtained; s3, the pretreated fabric is placed in a chitosan solution for ultrasonic treatment and then soaked, and a mixture is obtained; and S4, adding a cardanol derivative into the mixture, stirring, carrying out heat preservation treatment, centrifuging, washing, and carrying out low-temperature drying, thereby obtaining the product. The blended fabric is soaked in the alkaline solution, adhesion of chitosan is promoted, aldehyde groups are introduced into the cardanol derivatives, imine bond connection with a self-repairing function can be formed through the aldehyde groups and free amino groups, organic coating is formed on the blended fabric, and the blended fabric is endowed with a better crease-resistant effect.

Description

Technical Field

[0001] The invention belongs to the technical field of breathable fabrics and relates to a preparation process of wrinkle-resistant breathable fabrics. Background Art

[0002] Polyester fabric, as a representative of polyester synthetic fiber textile products, is widely used in many fields such as textile and clothing manufacturing due to its excellent strength, good elasticity and remarkable wrinkle resistance. This fabric can effectively maintain the original shape of textiles and show excellent durability.

[0003] However, it is worth noting that polyester fabrics perform poorly in terms of hydrophilicity and moisture permeability, which to some extent affects the wearing comfort.

[0004] Finishing agents are widely used in fabrics and can give fabrics good wettability, moisture permeability, softness, flame retardancy and other properties; such as polyester finishing agents, polyether finishing agents, silicone finishing agents, etc. Summary of the invention

[0005] The object of the present invention is to provide a preparation process of a wrinkle-resistant and breathable fabric. The blended fabric of the present invention is immersed in an alkaline solution to introduce more hydroxyl groups, promote the adhesion of chitosan, and introduce more amino groups into the blended fabric under the action of ultrasound. Perillaldehyde modifies cardanol to obtain a cardanol derivative with better hydrophobicity, and introduces an aldehyde group, which can form an imine bond with a self-repairing function with a free amino group to form an organic coating on the blended fabric, introduce a high-toughness carbon long chain and a rigid benzene ring structure, and give the blended fabric a better wrinkle-resistant effect.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A preparation process of a wrinkle-resistant and breathable fabric, the preparation process comprising the following steps:

[0008] Step S1: using 50wt% polyester and 50wt% cotton blended yarn as warp yarn, winding it through a warping machine to obtain a blended fabric;

[0009] Step S2: soaking the blended fabric in an alkaline solution, filtering, washing until the filtrate is neutral, and vacuum drying to a constant weight to obtain a pretreated fabric;

[0010] Step S3: placing the pretreated fabric in a chitosan solution for ultrasonic treatment and then soaking the chitosan solution to obtain a mixture;

[0011] Step S4: adding the cardanol derivative to the mixture, stirring and heat-insulating, removing the supernatant by centrifugation, washing and low-temperature drying to obtain the mixture.

[0012] As a preferred technical solution of the present invention, in step S1, the tension of the warping machine is 8-12 cN, and the warping speed is 680-720 m / min.

[0013] As a preferred technical solution of the present invention, in step S2, the alkaline solution is a 10-12% sodium hydroxide aqueous solution; the volume ratio of the blended fabric to the alkaline solution is 2:3.

[0014] As a preferred technical solution of the present invention, in step S2, the washing is performed with pure water; and the temperature of the vacuum drying is 60°C.

[0015] As a preferred technical solution of the present invention, in step S3, the ultrasonic treatment is performed at a frequency of 500-600W for 20-30min.

[0016] As a preferred technical solution of the present invention, in step S3, the soaking is performed at a temperature of 40-50° C. for 60-90 minutes.

[0017] As a preferred technical solution of the present invention, in step S3, the chitosan solution is prepared by mixing chitosan, acetic acid and deionized water in a mass ratio of 1.0-1.4:0.20-0.22:100-110; the mass ratio of the pretreated fabric to the chitosan solution is 5-7:65-70.

[0018] As a preferred technical solution of the present invention, in step S4, the stirring and heat preservation treatment is constant temperature stirring at 30-40°C and 200-240r / min for 4-5h; the low-temperature drying is drying at 40-50°C; the mass ratio of the mixture to the cardanol derivative is 150-160:2.2-3.4.

[0019] The present invention discloses a method for preparing the cardanol derivative, comprising the following steps:

[0020] The product is obtained by mixing cardanol, perillaldehyde and anhydrous ethanol, adding a photosensitizer, irradiating with ultraviolet light, and removing the supernatant by centrifugation.

[0021] As a preferred technical solution of the present invention, the ultraviolet irradiation is ultraviolet irradiation at 365nm for 5-6h; and the photosensitizer is photosensitizer 651.

[0022] As a preferred technical solution of the present invention, the mass ratio of the cardanol, perillaldehyde, anhydrous ethanol and photosensitizer is 7-8:5.4-6.2:50-60:0.22-0.24.

[0023] Beneficial effects of the present invention:

[0024] The blended fabric of the present invention is immersed in an alkaline solution to introduce more hydroxyl groups, promote the adhesion of chitosan, and introduce more amino groups into the blended fabric under the action of ultrasound, while perillaldehyde modifies cardanol to obtain a cardanol derivative with better hydrophobicity, and introduces aldehyde groups, which can form an imine bond with free amino groups to form an organic coating on the blended fabric, introduce high-toughness carbon long chains and rigid benzene ring structures, and give the blended fabric a better anti-wrinkle effect. DETAILED DESCRIPTION

[0025] 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 the embodiments.

[0026] Example 1

[0027] A preparation process of a wrinkle-resistant and breathable fabric, the preparation process comprising the following steps:

[0028] Step S1: using 50wt% polyester and 50wt% cotton blended yarn as warp yarn, winding it through a warping machine to obtain a blended fabric; wherein the tension of the warping machine is 8cN, and the warping speed is 680m / min;

[0029] Step S2: soaking the blended fabric in an alkaline solution, filtering, washing until the filtrate is neutral, and vacuum drying to constant weight to obtain a pretreated fabric; wherein the alkaline solution is a 10% sodium hydroxide aqueous solution; the washing is performed with pure water; the vacuum drying temperature is 60° C.; the volume ratio of the blended fabric to the alkaline solution is 2:3;

[0030] Step S3: placing the pretreated fabric in a chitosan solution for ultrasonic treatment and then soaking it to obtain a mixture; wherein the ultrasonic treatment is performed at a frequency of 500W for 20 minutes; the soaking is performed at a temperature of 40°C for 60 minutes; the chitosan solution is prepared by mixing chitosan, acetic acid and deionized water in a mass ratio of 1.0:0.20:100; the mass ratio of the pretreated fabric to the chitosan solution is 5:65;

[0031] Step S4: adding the cardanol derivative to the mixture, stirring and heat-insulating the mixture, removing the supernatant by centrifugation, washing and low-temperature drying to obtain the mixture; wherein the stirring and heat-insulating treatment is constant temperature stirring at 30°C and 200 r / min for 4 hours; the low-temperature drying is drying at 40°C; the mass ratio of the mixture to the cardanol derivative is 150:2.2.

[0032] The preparation of the cardanol derivative comprises the following steps:

[0033] After mixing cardanol, perillaldehyde and anhydrous ethanol, adding a photosensitizer and irradiating with ultraviolet light, centrifuging and removing the supernatant, the obtained product is obtained; wherein the ultraviolet light irradiation is 365nm ultraviolet light irradiation for 5 hours; the photosensitizer is photosensitizer 651; the mass ratio of cardanol, perillaldehyde, anhydrous ethanol and photosensitizer is 7:5.4:50:0.22.

[0034] Example 2

[0035] A preparation process of a wrinkle-resistant and breathable fabric, the preparation process comprising the following steps:

[0036] Step S1: using 50wt% polyester and 50wt% cotton blended yarn as warp yarn, winding it through a warping machine to obtain a blended fabric; wherein the tension of the warping machine is 9cN, and the warping speed is 690m / min;

[0037] Step S2: soaking the blended fabric in an alkaline solution, filtering, washing until the filtrate is neutral, and vacuum drying to constant weight to obtain a pretreated fabric; wherein the alkaline solution is a 10.5% sodium hydroxide aqueous solution; the washing is performed with pure water; the vacuum drying temperature is 60° C.; the volume ratio of the blended fabric to the alkaline solution is 2:3;

[0038] Step S3: placing the pretreated fabric in a chitosan solution for ultrasonic treatment and then soaking it to obtain a mixture; wherein the ultrasonic treatment is performed at a frequency of 530W for 25 minutes; the soaking is performed at a temperature of 43°C for 70 minutes; the chitosan solution is prepared by mixing chitosan, acetic acid and deionized water in a mass ratio of 1.1:0.21:105; the mass ratio of the pretreated fabric to the chitosan solution is 5.7:67;

[0039] Step S4: adding the cardanol derivative to the mixture, stirring and heat-insulating the mixture, removing the supernatant by centrifugation, washing and low-temperature drying to obtain the mixture; wherein the stirring and heat-insulating treatment is constant temperature stirring at 33°C and 210r / min for 4.5h; the low-temperature drying is drying at 45°C; the mass ratio of the mixture to the cardanol derivative is 153:2.6.

[0040] The preparation of the cardanol derivative comprises the following steps:

[0041] After mixing cardanol, perillaldehyde and anhydrous ethanol, adding a photosensitizer and irradiating with ultraviolet light, centrifuging and removing the supernatant, the obtained product is obtained; wherein the ultraviolet light irradiation is 365nm ultraviolet light irradiation for 5.5h; the photosensitizer is photosensitizer 651; the mass ratio of cardanol, perillaldehyde, anhydrous ethanol and photosensitizer is 7.3:5.7:53:0.23.

[0042] Example 3

[0043] A preparation process of a wrinkle-resistant and breathable fabric, the preparation process comprising the following steps:

[0044] Step S1: using 50wt% polyester and 50wt% cotton blended yarn as warp yarn, winding it through a warping machine to obtain a blended fabric; wherein the tension of the warping machine is 11cN, and the warping speed is 710m / min;

[0045] Step S2: soaking the blended fabric in an alkaline solution, filtering, washing until the filtrate is neutral, and vacuum drying to constant weight to obtain a pretreated fabric; wherein the alkaline solution is an 11.5% sodium hydroxide aqueous solution; the washing is performed with pure water; the vacuum drying temperature is 60° C.; the volume ratio of the blended fabric to the alkaline solution is 2:3;

[0046] Step S3: placing the pretreated fabric in a chitosan solution for ultrasonic treatment and then soaking it to obtain a mixture; wherein the ultrasonic treatment is performed at a frequency of 560W for 28 minutes; the soaking is performed at a temperature of 47°C for 80 minutes; the chitosan solution is prepared by mixing chitosan, acetic acid and deionized water in a mass ratio of 1.3:0.21:108; the mass ratio of the pretreated fabric to the chitosan solution is 6.3:68;

[0047] Step S4: adding the cardanol derivative to the mixture, stirring and heat-insulating the mixture, removing the supernatant by centrifugation, washing and low-temperature drying to obtain the mixture; wherein the stirring and heat-insulating treatment is constant temperature stirring at 37°C and 220r / min for 4.5h; the low-temperature drying is drying at 45°C; the mass ratio of the mixture to the cardanol derivative is 155:3.

[0048] The preparation of the cardanol derivative comprises the following steps:

[0049] After mixing cardanol, perillaldehyde and anhydrous ethanol, adding a photosensitizer and irradiating with ultraviolet light, centrifuging and removing the supernatant, the obtained product is obtained; wherein the ultraviolet light irradiation is 5.5 hours at 365nm; the photosensitizer is photosensitizer 651; the mass ratio of cardanol, perillaldehyde, anhydrous ethanol and photosensitizer is 7.6:5.8:57:0.23.

[0050] Example 4

[0051] A preparation process of a wrinkle-resistant and breathable fabric, the preparation process comprising the following steps:

[0052] Step S1: using 50wt% polyester and 50wt% cotton blended yarn as warp yarn, winding it through a warping machine to obtain a blended fabric; wherein the tension of the warping machine is 12cN, and the warping speed is 720m / min;

[0053] Step S2: soaking the blended fabric in an alkaline solution, filtering, washing until the filtrate is neutral, and vacuum drying to constant weight to obtain a pretreated fabric; wherein the alkaline solution is a 12% sodium hydroxide aqueous solution; the washing is performed with pure water; the vacuum drying temperature is 60° C.; the volume ratio of the blended fabric to the alkaline solution is 2:3;

[0054] Step S3: placing the pretreated fabric in a chitosan solution for ultrasonic treatment and then soaking it to obtain a mixture; wherein the ultrasonic treatment is performed at a frequency of 600 W for 30 minutes; the soaking is performed at a temperature of 50° C. for 90 minutes; the chitosan solution is prepared by mixing chitosan, acetic acid and deionized water in a mass ratio of 1.4:0.22:110; the mass ratio of the pretreated fabric to the chitosan solution is 7:70;

[0055] Step S4: adding the cardanol derivative to the mixture, stirring and heat-insulating the mixture, removing the supernatant by centrifugation, washing and low-temperature drying to obtain the mixture; wherein the stirring and heat-insulating treatment is constant temperature stirring at 40°C and 240r / min for 5h; the low-temperature drying is drying at 50°C; the mass ratio of the mixture to the cardanol derivative is 160:3.4.

[0056] The preparation of the cardanol derivative comprises the following steps:

[0057] After mixing cardanol, perillaldehyde and anhydrous ethanol, adding a photosensitizer and irradiating with ultraviolet light, centrifuging and removing the supernatant, the obtained product is obtained; wherein the ultraviolet light irradiation is 6 hours at 365nm; the photosensitizer is photosensitizer 651; the mass ratio of cardanol, perillaldehyde, anhydrous ethanol and photosensitizer is 8:6.2:60:0.24.

[0058] Comparative Example 1

[0059] Compared with Example 2, Comparative Example 1 is different in that no alkaline solution is used, and the remaining components, preparation steps and parameters are the same.

[0060] Comparative Example 2

[0061] Compared with Example 2, the difference in Comparative Example 2 is that deionized water replaces chitosan, and the other components, preparation steps and parameters are the same.

[0062] Comparative Example 3

[0063] Compared with Example 2, the difference in Comparative Example 3 is that step S3 does not perform ultrasonic treatment, and the remaining components, preparation steps and parameters are the same.

[0064] Comparative Example 4

[0065] Compared with Example 2, the difference in Comparative Example 4 is that perillaldehyde is not used, and the other components, preparation steps and parameters are the same.

[0066] Comparative Example 5

[0067] Compared with Example 2, Comparative Example 5 is different in that no cardanol derivative is used, and the remaining components, preparation steps and parameters are the same.

[0068] The fabrics prepared in Examples 1-4 and Comparative Examples 1-5 were subjected to the following performance tests respectively.

[0069] Water vapor permeability test: The water vapor permeability of polyester fabric was measured according to the method of GB / T 12704.2-2009. The test temperature was 25°C and the relative humidity was 70%. The test results are shown in Table 1.

[0070] Table 1

[0071]

[0072]

[0073] From the test results in Table 1, it can be seen that compared with Comparative Examples 1-5, the fabrics prepared in Examples 1-4 of the present invention have good water vapor permeability before and after washing.

[0074] Anti-wrinkle test: refer to the national standard GB / T3819-1997 "Method for measuring the recovery angle of crease recovery of textile fabrics" for testing. Before the test, the anti-wrinkle fabrics obtained in each example were humidified at a temperature of 20°C and a relative humidity of 65% for 6 hours, the test temperature was 35°C, the test relative humidity was 90%, the test load was 10N, the pressure event was withstood for 5 minutes, 4 parallel tests were conducted, and the average value was taken; the test results are shown in Table 2.

[0075] Table 2

[0076]

[0077]

[0078] From the test results in Table 2, it can be seen that compared with Comparative Examples 1-5, the fabrics prepared in Examples 1-4 of the present invention have good anti-wrinkle effects.

[0079] From the test results of Table 1 and Table 2, combined with the analysis of Examples 1-4 and Comparative Examples 1-5, it can be seen that the blended fabric of the present invention introduces more hydroxyl groups by immersion in an alkaline solution, promotes the adhesion of chitosan, and introduces more amino groups into the blended fabric under the action of ultrasound, and perillaldehyde modifies cardanol to obtain a cardanol derivative with better hydrophobic ability, and introduces aldehyde groups, which can form a Schiff base chemical connection structure with free amino groups through the aldehyde groups, so that the blended fabric is organically coated, and the introduction of high-toughness carbon long chains, rigid benzene ring structures and self-repairing structures gives the blended fabric a better anti-wrinkle effect; and the porous structure and self-repairing function give the blended fabric a good water vapor permeability before and after washing.

[0080] 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 process for preparing a wrinkle-resistant and breathable fabric, characterized in that: The preparation process comprises the following steps: Step S1: using 50wt% polyester and 50wt% cotton blended yarn as warp yarn, winding it through a warping machine to obtain a blended fabric; Step S2: soaking the blended fabric in an alkaline solution, filtering, washing until the filtrate is neutral, and vacuum drying to a constant weight to obtain a pretreated fabric; Step S3: placing the pretreated fabric in a chitosan solution for ultrasonic treatment and then soaking the chitosan solution to obtain a mixture; Step S4: adding the cardanol derivative to the mixture, stirring and heat-insulating, removing the supernatant by centrifugation, washing and low-temperature drying to obtain the mixture.

2. The process for preparing a wrinkle-resistant and breathable fabric according to claim 1, characterized in that: In step S1, the tension of the warping machine is 8-12 cN, and the warping speed is 680-720 m / min.

3. The process for preparing a wrinkle-resistant and breathable fabric according to claim 1, characterized in that: In step S2, the alkaline solution is a 10-12% sodium hydroxide aqueous solution; the washing is performed with pure water; the vacuum drying temperature is 60°C; and the volume ratio of the blended fabric to the alkaline solution is 2:

3.

4. The process for preparing a wrinkle-resistant and breathable fabric according to claim 1, characterized in that: In step S3, the ultrasonic treatment is performed at a frequency of 500-600W for 20-30min; the soaking is performed at a temperature of 40-50°C for 60-90min; the chitosan solution is prepared by mixing chitosan, acetic acid and deionized water in a mass ratio of 1.0-1.4:0.20-0.22:100-110; and the mass ratio of the pretreated fabric to the chitosan solution is 5-7:65-70.

5. The process for preparing a wrinkle-resistant and breathable fabric according to claim 1, characterized in that: In step S4, the stirring and heat preservation treatment is constant temperature stirring at 30-40°C and 200-240r / min for 4-5h; the low temperature drying is drying at 40-50°C; the mass ratio of the mixture to the cardanol derivative is 150-160:2.2-3.

4.

6. The process for preparing a wrinkle-resistant and breathable fabric according to claim 1, characterized in that: The preparation of the cardanol derivative comprises the following steps: The product is obtained by mixing cardanol, perillaldehyde and anhydrous ethanol, adding a photosensitizer, irradiating with ultraviolet light, and removing the supernatant by centrifugation.

7. The process for preparing a wrinkle-resistant and breathable fabric according to claim 6, characterized in that: The ultraviolet irradiation is 365nm ultraviolet irradiation for 5-6h; the photosensitizer is photosensitizer 651.

8. The process for preparing a wrinkle-resistant and breathable fabric according to claim 6, characterized in that: The mass ratio of the cardanol, perillaldehyde, anhydrous ethanol and photosensitizer is 7-8:5.4-6.2:50-60:0.22-0.

24.

9. A wrinkle-resistant and breathable fabric prepared by the preparation process according to any one of claims 1 to 8.

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