Breathable insect-proof fabric and outdoor charge clothes ornament

Abstract

The invention relates to a breathable insect-proof fabric and an outdoor charge garment ornament, and relates to the technical field of functional fabrics, and the breathable insect-proof fabric is prepared by the following steps: performing enzymolysis treatment on a polyester fabric to obtain a modified polyester fabric, immersing the modified polyester fabric in a xanthan gum aqueous solution, adding a collagen cross-linking agent, and performing uniform stirring to obtain the breathable insect-proof fabric. And finally, carrying out padding, baking, soaping and air-drying treatment to obtain the product. The structure of the collagen cross-linking agent is compounded with glaucine. The polyester fabric is treated by cutinase, so that active functional groups such as hydroxyl and the like are generated on the surface of the polyester fiber, then the polyester fiber is mixed with a xanthan gum aqueous solution, and a collagen cross-linking agent with the structure containing picrolidine and genipin is added for blending, so that the polyester fabric is obtained. The xanthan gum, the collagen and the polyester fabric are mutually connected through the collagen cross-linking agent to form the breathable skin-friendly fabric with the insecticidal effect, and the breathable skin-friendly fabric has a good application prospect in outdoor charge clothes and ornaments.

Description

Technical Field

[0001] The invention belongs to the technical field of functional fabrics, and in particular relates to a breathable insect-proof fabric and outdoor jacket. Background Art

[0002] With the growing popularity of outdoor sports, consumers are increasingly demanding functional outdoor clothing. Beyond the standard "three-proof" properties required for outdoor sports, the inner fabric of outdoor clothing must also exhibit good breathability and moisture wicking and quick-drying properties. For activities like hiking, consumers are also focusing on specific performance requirements, such as insect repellency.

[0003] Polyester is a synthetic fiber made from polyester chips. It has the advantages of high strength, high elasticity, strong heat resistance, good light resistance, and resistance to deformation. It also dries quickly after washing, offering excellent washable and wearable properties. It is a commonly used fabric for outdoor clothing. However, polyester fabrics have poor breathability, causing the wearer to feel stuffy and uncomfortable. Furthermore, untreated polyester fabrics lack insect repellent properties. Therefore, the current application of polyester fabrics in outdoor clothing still has certain limitations. Therefore, the present invention provides a breathable and insect-proof fabric and outdoor clothing. Summary of the Invention

[0004] The purpose of the present invention is to provide a breathable insect-proof fabric and outdoor clothing in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The present invention provides a breathable and insect-proof fabric. The breathable and insect-proof fabric is obtained by first subjecting polyester fabric to enzymatic hydrolysis to obtain a modified polyester fabric, then immersing the modified polyester fabric in a xanthan gum aqueous solution, adding a collagen cross-linking agent, and finally subjecting the fabric to padding, baking, soaping, and drying. The collagen cross-linking agent structure contains chloranthine.

[0007] As a further optimization scheme of the present invention, the enzymatic hydrolysis treatment is to add the polyester fabric to a treatment solution composed of cutinase and water with a pH of 7.0-8.0 and a bath ratio of 1:10-30, treat at 50-60°C for 90-120 minutes, then wash with water and dry at 60-70°C.

[0008] As a further optimized solution of the present invention, the mass concentration of the xanthan gum aqueous solution is 5-10%.

[0009] As a further optimized solution of the present invention, the preparation method of the collagen cross-linking agent comprises the following steps:

[0010] (1) Genipin and collagen solution were stirred and mixed, 4-dimethylaminopyridine and N, N-dicyclohexylcarbodiimide were added, and the mixture was stirred at room temperature for 6-10 hours under a nitrogen atmosphere. The solid was filtered and washed and vacuum dried to obtain a collagen intermediate;

[0011] (2) Stirring qinglianine, collagen intermediate and tetrahydrofuran to form a uniform solution, adding oxalyl chloride to the solution, stirring evenly, adding triethylamine dropwise, stirring at room temperature for 1-3 hours under a nitrogen atmosphere, filtering and retaining the solid, washing and vacuum drying to obtain a collagen crosslinker.

[0012] Through the above scheme, under the joint action of 4-dimethylaminopyridine and N,N-dicyclohexylcarbodiimide, the active carboxyl group in the genipin structure and the active amino group in the collagen structure undergo dehydration condensation to form a collagen intermediate containing genipin in the structure. In addition, the hydroxyl group of chloranine reacts with the acyl chloride group in the oxalyl chloride structure to undergo esterification reaction, thereby introducing chloranine into the collagen structure and forming a collagen cross-linker.

[0013] As a further optimized solution of the present invention, the mass concentration of the collagen solution is 15-20 g / L.

[0014] As a further optimization scheme of the present invention, the breathable insect-proof fabric is prepared by using the following raw materials in parts by mass: 50-100 parts of polyester fabric, 20-40 parts of xanthan gum, 400-800 parts of water, and 8-12 parts of collagen cross-linking agent.

[0015] As a further optimization solution of the present invention, the baking method is to pre-bake at 60-65°C for 20-40 minutes and then bake at 100-110°C for 20-40 minutes.

[0016] As a further optimized solution of the present invention, the dosage ratio of the genipin to the collagen solution is 10 g:50 ml, and the mass ratio of the qinglianine to the collagen intermediate is 0.4-0.8:1.

[0017] The present invention also provides outdoor jackets prepared by using any of the above-mentioned breathable and insect-proof fabrics.

[0018] The beneficial effects of the present invention are:

[0019] (1) The present invention first uses cutinase to treat polyester fabric to produce active functional groups such as hydroxyl groups on the surface of polyester fibers, and then mixes it with a xanthan gum aqueous solution, and adds a collagen cross-linking agent containing chloranine and genipin in its structure to blend them. The collagen cross-linking agent connects the xanthan gum, collagen and polyester fabric to each other to form a breathable and skin-friendly fabric with insecticidal effect, which has good application prospects in outdoor clothing.

[0020] (2) The present invention modifies the surface of polyester fabric with xanthan gum macromolecules by using collagen cross-linking agent. Due to the water absorption of xanthan gum, it can absorb part of the sweat after the skin sweats, so that the fabric can achieve the effect of moisture absorption and quick drying. In addition, xanthan gum as a macromolecule is filled between fibers, which increases the gap between fibers, thereby effectively improving the breathability of the fabric.

[0021] (3) The present invention provides a collagen cross-linking agent containing chloranine and genipin in its structure, which is then covalently linked to the surface of polyester fabric. The coordinated action of chloranine and genipin gives the polyester fabric good insect repellent properties. Moreover, this covalent grafting method has a strong binding force and can maintain relatively excellent insect repellent properties after multiple washings. DETAILED DESCRIPTION

[0022] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] All materials not otherwise specified in the following examples can be obtained through commercial sources.

[0024] In the following embodiments, the polyester fabric used has a specification of 35.0 tex×27.2 tex, a warp density of 450 threads / 10 cm, and a weft density of 350 threads / 10 cm, but the present invention is not limited to this fabric specification.

[0025] Sinomenine, also known as Sinomenine in English, has a CAS number of 115-53-7 and a molecular formula of C 19 H 23 NO4, molecular weight is 329.39.

[0026] Genipin, English name is Genipin, CAS number is 6902-77-8, its molecular formula is: C 11 H 14 O5, molecular weight is 226.23.

[0027] Example 1

[0028] The breathable insect-proof fabric provided in this embodiment is prepared by first adding 100 parts by mass of a polyester fabric to a treatment solution composed of cutinase and water with a pH of 7.0-8.0 and a bath ratio of 1:20, treating the solution at 50-60°C for 120 minutes, washing the solution with water, and drying the solution at 60-70°C to complete the enzymatic hydrolysis treatment to obtain a modified polyester fabric.

[0029] A xanthan gum aqueous solution is prepared, 20 parts by mass of xanthan gum is uniformly dispersed in 400 parts by mass of an aqueous solution to obtain a xanthan gum aqueous solution with a mass concentration of 5%, a modified polyester fabric is immersed in the xanthan gum aqueous solution, 12 parts by mass of a collagen cross-linking agent is added, stirred and uniformly dispersed, heated to 50°C, the modified polyester fabric is soaked for 1 hour, taken out and rolled, pre-dried at 60-65°C for 20 minutes, baked at 100-110°C for 40 minutes, soaped and air-dried to obtain a breathable and insect-proof fabric.

[0030] In this embodiment, the collagen cross-linker used is prepared by the following method: 10g of genipin is stirred and mixed with 50ml of a collagen solution with a mass concentration of 20g / L, 0.5g of 4-dimethylaminopyridine and 0.2g of N,N-dicyclohexylcarbodiimide are added, and the mixture is stirred at room temperature for 6h under a nitrogen atmosphere, and the solid is filtered and retained. The collagen intermediate is obtained by washing and vacuum drying; 1.6g of chloranine, 2g of the collagen intermediate and tetrahydrofuran are stirred and mixed to form a uniform solution, 0.6g of oxalyl chloride is added to the solution, and after stirring, 0.1g of triethylamine is added dropwise, and the mixture is stirred at room temperature for 2h under a nitrogen atmosphere. The solid is filtered and retained, and the collagen cross-linker is obtained by washing and vacuum drying.

[0031] Example 2

[0032] The breathable insect-proof fabric provided in this embodiment is firstly added with 50 parts by mass of polyester fabric into a treatment solution composed of cutinase and water with a pH of 7.0-8.0 and a bath ratio of 1:30, and treated at 50-60°C for 90 minutes, and then washed with water and dried at 60-70°C to complete the enzymatic hydrolysis treatment to obtain a modified polyester fabric;

[0033] A xanthan gum aqueous solution is prepared, 40 parts by mass of xanthan gum is uniformly dispersed in 400 parts by mass of an aqueous solution to obtain a xanthan gum aqueous solution with a mass concentration of 10%, a modified polyester fabric is immersed in the xanthan gum aqueous solution, 8 parts by mass of a collagen cross-linking agent is added, the modified polyester fabric is stirred and uniformly dispersed, and the fabric is heated to 50°C. After soaking the modified polyester fabric for 1 hour, the fabric is taken out and rolled, pre-baked at 60-65°C for 40 minutes, baked at 100-110°C for 20 minutes, soaped, and air-dried to obtain a breathable and insect-proof fabric.

[0034] In this embodiment, the collagen cross-linker used is prepared by the following method: 10g of genipin is stirred and mixed with 50ml of a collagen solution with a mass concentration of 15g / L, 0.5g of 4-dimethylaminopyridine and 0.2g of N,N-dicyclohexylcarbodiimide are added, and the mixture is stirred at room temperature for 9h under a nitrogen atmosphere, and the solid is filtered and retained. The collagen intermediate is obtained by washing and vacuum drying. 0.8g of chloranine, 2g of the collagen intermediate and tetrahydrofuran are stirred and mixed to form a uniform solution, 0.6g of oxalyl chloride is added to the solution, and after stirring, 0.1g of triethylamine is added dropwise, and the mixture is stirred at room temperature for 3h under a nitrogen atmosphere. The solid is filtered and retained. The collagen cross-linker is obtained by washing and vacuum drying.

[0035] Example 3

[0036] The breathable insect-proof fabric provided in this embodiment is prepared by first adding 80 parts by mass of a polyester fabric to a treatment solution composed of cutinase and water with a pH of 7.0-8.0 and a bath ratio of 1:25, treating the solution at 50-60°C for 100 minutes, washing the solution with water, and drying the solution at 60-70°C to complete the enzymatic hydrolysis treatment to obtain a modified polyester fabric.

[0037] A xanthan gum aqueous solution is prepared, 40 parts by mass of xanthan gum is uniformly dispersed in 800 parts by mass of an aqueous solution to obtain a xanthan gum aqueous solution with a mass concentration of 5%, a modified polyester fabric is immersed in the xanthan gum aqueous solution, 10 parts by mass of a collagen cross-linking agent is added, the modified polyester fabric is stirred and uniformly dispersed, and the fabric is heated to 50°C. After soaking the modified polyester fabric for 1 hour, the fabric is taken out and rolled, pre-baked at 60-65°C for 30 minutes, baked at 100-110°C for 30 minutes, soaped, and air-dried to obtain a breathable and insect-proof fabric.

[0038] In this embodiment, the collagen cross-linker used is prepared by the following method: 10g of genipin is stirred and mixed with 50ml of a collagen solution with a mass concentration of 15g / L, 0.5g of 4-dimethylaminopyridine and 0.2g of N,N-dicyclohexylcarbodiimide are added, and the mixture is stirred at room temperature for 12h under a nitrogen atmosphere, and the solid is filtered and retained. The collagen intermediate is obtained by washing and vacuum drying. 1.2g of chloranine, 2g of collagen intermediate and tetrahydrofuran are stirred and mixed to form a uniform solution, 0.6g of oxalyl chloride is added to the solution, and after stirring, 0.1g of triethylamine is added dropwise, and the mixture is stirred at room temperature for 2h under a nitrogen atmosphere. The solid is filtered and retained. The collagen cross-linker is obtained by washing and vacuum drying.

[0039] Example 4

[0040] This embodiment provides an outdoor jacket garment, in which the outer fabric of the jacket body is made of "three-proof" fabric, and the breathable insect-proof fabric prepared in any one of Examples 1-3 is used as the inner fabric of the jacket, as well as the inner fabric of the jacket collar, the armpit fabric, the side fabrics of the jacket, and the lower side fabric of the jacket sleeves. While fully exerting the breathable and insect-proof effect of the breathable insect-proof fabric, it can also retain the "three-proof" characteristics of the jacket to a large extent.

[0041] To verify the effect of adding collagen cross-linker on the performance of breathable and insect-proof fabrics.

[0042] The present invention further records the fabric prepared in Example 1 as fabric sample 1. Fabric samples 2-7 are prepared and compared with fabric sample 1:

[0043] Fabric sample 2: The only difference from fabric sample 1 is that no collagen cross-linking agent is added, and 10g of genipin, 1.6g of qinglianine and 50ml of 20g / L collagen solution are stirred and mixed to obtain a mixed solution instead of the collagen cross-linking agent.

[0044] Fabric sample 3: The only difference from fabric sample 1 is that the modified polyester fabric is dispersed in 420 parts by mass of water, 12 parts by mass of collagen cross-linking agent is added, stirred and dispersed evenly, heated to 50°C, and the modified polyester fabric is soaked for 1 hour and then taken out and rolled. After pre-baking at 60-65°C for 20 minutes, it is baked at 100-110°C for 40 minutes, soaped and dried to obtain a breathable and insect-proof fabric.

[0045] Fabric sample 4: The difference from fabric sample 1 is that the added collagen cross-linker is prepared by the following preparation method: 10g of genipin is stirred and mixed with 50ml of a collagen solution with a mass concentration of 20g / L, 0.5g of 4-dimethylaminopyridine and 0.2g of N,N-dicyclohexylcarbodiimide are added, and the mixture is stirred at room temperature for 6h under a nitrogen atmosphere. The solid is filtered and washed and vacuum dried to obtain a collagen intermediate; 2g of the collagen intermediate is stirred and mixed with tetrahydrofuran to form a uniform solution, 0.6g of oxalyl chloride is added to the solution, and after stirring, 0.1g of triethylamine is added dropwise, and the mixture is stirred at room temperature for 2h under a nitrogen atmosphere. The solid is filtered and washed and vacuum dried to obtain a collagen cross-linker.

[0046] Fabric sample 5: The only difference from fabric sample 1 is that: the polyester fabric is not modified by enzymatic hydrolysis, but is modified by plasma equipment. The polyester fabric is treated with plasma equipment with a power of 50 W and a pressure of 15 Pa. It is first treated with oxygen for 60 seconds and then with nitrogen for 180 seconds to obtain the modified polyester fabric.

[0047] Fabric sample 6: The difference from fabric sample 1 is that the collagen cross-linker is prepared by the following method: 10g of tannic acid is stirred and mixed with 50ml of a collagen solution with a mass concentration of 20g / L, 0.5g of 4-dimethylaminopyridine and 0.2g of N,N-dicyclohexylcarbodiimide are added, and the mixture is stirred at room temperature for 6h under a nitrogen atmosphere. The solid is filtered and washed and vacuum dried to obtain a collagen intermediate, 1.6g of chloranthine, 2g of collagen intermediate and tetrahydrofuran are stirred and mixed to form a uniform solution, 0.6g of oxalyl chloride is added to the solution, and after stirring, 0.1g of triethylamine is added dropwise, and the mixture is stirred at room temperature for 2h under a nitrogen atmosphere. The solid is filtered and washed and vacuum dried to obtain a collagen cross-linker.

[0048] Fabric sample 7: The only difference from fabric sample 1 is that 20 parts by mass of starch are evenly dispersed into 400 parts by mass of an aqueous solution to obtain a starch aqueous solution with a mass concentration of 5%, the modified polyester fabric is immersed in the starch aqueous solution, 12 parts by mass of a collagen cross-linking agent are added, stirred and evenly dispersed, heated to 50°C, the modified polyester fabric is soaked for 1 hour, then taken out and rolled, pre-baked at 60-65°C for 20 minutes, baked at 100-110°C for 40 minutes, soaped and dried to obtain a breathable and insect-proof fabric.

[0049] 1. The following air permeability and moisture absorption properties of fabric samples 1-7 were tested. In addition, the original polyester fabric and the enzymatically modified polyester fabric were used as comparative examples 1-2.

[0050] A. Cut the fabric into 20cm 2 The breathability of fabrics was tested by referring to the national standard GB / T 5453-1997 “Determination of Air Permeability of Textile Fabrics”.

[0051] B. Cut the fabric into 20cm pieces 2 The water absorption performance of the fabric is tested with reference to the national standard GB / T 21655.1-2008 "Evaluation of moisture absorption and quick-drying properties of textiles Part 1: Single combination test method".

[0052] The results are shown in Table 1.

[0053] Table 1 Fabric performance statistics

[0054]

[0055] As can be seen from Table 1, compared with the original polyester fabric (Comparative Example 1), the air permeability and water absorption of the fabric sample 1 prepared in Example 1 are improved to a certain extent. The water absorption of fabric samples 1-7 is more than 70%, and the difference is not significant. However, there is a significant difference in the air permeability of fabric samples 1-7. The air permeability of fabric sample 1, fabric sample 4 and fabric sample 6 all reaches 300 mm·s -1 Above, the air permeability of fabric sample 1 reaches 315mm·s -1 .

[0056] 2. Conduct insect repellent test on fabric samples 1-7 and comparative example 1

[0057] Fabric samples 1-7 and comparative example 1 were cut into 15 cm x 10 cm pieces. Then, using Culex pipiens as test mosquitoes, groups of 50 were placed into mosquito cages. Each fabric sample was then placed on a mouse and secured. A control group, unwrapped with a fabric sample, served as a control. In a temperature-controlled laboratory, the test mice were placed in the cages and the number of mosquitoes landing on the fabric samples was observed within 15 minutes. The landing frequency was calculated (average number of landings per mosquito: (total number of landings per Culex pipiens / total number of Culex pipiens) × 100%).

[0058] Then, remove the test rats and leave the fabric samples in the cages. At the start of the test, count the total number of Culex mosquitoes in the cages, remove dead or weak Culex mosquitoes, and replenish the number of mosquitoes in each group to 50. After 2 hours of testing, check the number of dead mosquitoes and calculate the 2-hour mortality rate (mortality rate: number of dead Culex mosquitoes / total number of Culex mosquitoes) × 100%.

[0059] In addition, the above test was conducted again on fabric samples 1-7 and comparative example 1 after 50 washes. The results are shown in Table 2:

[0060] Table 2 Insect repellent test results

[0061]

[0062] The results are shown in Table 2. Compared to the other groups, fabric sample 1 had a lower mosquito landing frequency and higher mosquito mortality rate after 0 and 50 washes, demonstrating its excellent insect repellency. Fabric samples 3 and 5 showed comparable insect repellency to fabric sample 1. Fabric samples 4 and 6, which used collagen crosslinkers without qinglianine and genipin, respectively, were less effective than fabric sample 1, demonstrating that qinglianine and genipin play an important role in improving the insect repellency of polyester fabrics. Fabric sample 2, which used a collagen solution containing qinglianine and genipin instead of a collagen crosslinker, showed comparable insect repellency to fabric sample 1 after 0 washes, but significantly decreased after 50 washes. Fabric sample 7 has a comparable insect repellent effect to fabric sample 1 after 0 washes, but its insect repellent effect decreases significantly after 50 washes. The large starch molecules present in the gaps between the fibers can easily carry away the effective ingredients that exert the insect repellent effect after multiple washes, which is not conducive to the long-term effect of the insect repellent.

[0063] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A breathable insect-proof fabric, characterized by: The breathable and insect-proof fabric is obtained by first subjecting polyester fabric to enzymatic hydrolysis to obtain modified polyester fabric, then immersing the modified polyester fabric in a xanthan gum aqueous solution, adding a collagen cross-linking agent, and finally subjecting the fabric to padding, baking, soaping, and drying. The collagen cross-linking agent structure contains chloranthine.

2. The breathable insect-proof fabric according to claim 1, characterized in that: The enzymatic hydrolysis treatment comprises adding the polyester fabric into a treatment solution composed of cutinase and water with a pH of 7.0-8.0 and a bath ratio of 1:10-30, treating the fabric at 50-60°C for 90-120 minutes, and then washing the fabric with water and drying the fabric at 60-70°C.

3. The breathable insect-proof fabric according to claim 1, characterized in that: The mass concentration of the xanthan gum aqueous solution is 5-10%.

4. The breathable insect-proof fabric according to claim 1, characterized in that: The preparation method of the collagen cross-linking agent comprises the following steps: (1) Genipin and collagen solution were stirred and mixed, 4-dimethylaminopyridine and N, N-dicyclohexylcarbodiimide were added, and the mixture was stirred at room temperature for 6-10 hours under a nitrogen atmosphere. The solid was filtered and washed and vacuum dried to obtain a collagen intermediate; (2) Stirring qinglianine, collagen intermediate and tetrahydrofuran to form a uniform solution, adding oxalyl chloride to the solution, stirring evenly, adding triethylamine dropwise, stirring at room temperature for 1-3 hours under a nitrogen atmosphere, filtering and retaining the solid, washing and vacuum drying to obtain a collagen crosslinker.

5. The breathable insect-proof fabric according to claim 4, characterized in that: The mass concentration of the collagen solution is 15-20 g / L.

6. The breathable insect-proof fabric according to claim 1, characterized in that: The breathable insect-proof fabric is prepared by using the following raw materials in parts by mass: 50-100 parts of polyester fabric, 20-40 parts of xanthan gum, 400-800 parts of water, and 8-12 parts of a collagen cross-linking agent.

7. The breathable insect-proof fabric according to claim 1, characterized in that: The baking method comprises pre-baking at 60-65° C. for 20-40 minutes and then baking at 100-110° C. for 20-40 minutes.

8. The breathable insect-proof fabric according to claim 1, characterized in that: The dosage ratio of the genipin to the collagen solution is 10 g:50 ml, and the mass ratio of the qinglianine to the collagen intermediate is 0.4-0.8:

1.

9. An outdoor jacket made from the breathable insect-proof fabric according to any one of claims 1 to 8.

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