Finishing method for improving washability and mildew resistance of textile fabric

Abstract

The invention discloses a finishing method for improving washability and mildew resistance of a textile fabric. The finishing method provided by the invention comprises the following steps: treating the textile fabric by using an aqueous solution containing a mildew preventive; the mildew preventive is selected from one or more of triclosan, parachlorometaxylenol and 1, 2-benzisothiazolin-3-one, and the mildew preventive is selected from one or more of the following components; the pH value of the aqueous solution containing the mildew preventive is 8.0-9.5. After the textile fabric is treated by the finishing method provided by the invention, the textile fabric not only has excellent mildew-proof performance, but also has good fastness to washing, is suitable for products with high washing frequency for home textiles and outdoor wearing equipment, effectively prolongs the service life of the textile fabric product, and improves the health safety. Meanwhile, reagents used in the method are wide in source and easy to obtain, the preparation process is simple, the cost is relatively low, and the method is suitable for mass production of enterprises.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, in particular to a finishing method for improving the wash resistance and mildew resistance of textile fabrics. BACKGROUND

[0002] With the improvement of people's living standards, the requirements for textiles are also getting higher and higher. The development of wash-resistant textile mildew finishing agents is of great significance to improve the performance of textiles and prolong their service life. Textiles such as clothing, home textile products, and outdoor equipment are often severely affected in terms of mildew resistance during frequent use and washing, leading to a decline in product performance and affecting the user experience of consumers.

[0003] In order to make fabrics have mildew resistance, people often finish the fabrics with mildew resistance, that is, through antimicrobial finishing to make textiles have the ability to resist microbial invasion. In the finishing of antimicrobial and antibacterial of fabrics, the commonly used methods mainly include: surface coating method, immersion method and grafting method.

[0004] CN105019229A discloses a method for finishing fabrics with Ag-ZnO nanocomposites, which can improve the antibacterial and mildew resistance of fabrics, and has good wash fastness and long-term durability. However, this method is suitable for use in high humidity environments, has limited temperature range for qualitative drying of textiles, and has high cost. CN105484044A discloses a new type of mildew-resistant and antibacterial finishing agent, which can inhibit bacteria and fungi, deodorize and provide comfort, and improve the durability and safety of fabrics. However, the test method used in this technology is AATCC100-1993 American AATCC standard, and the test bacteria selected are mainly bacteria, which still belongs to antibacterial finishing agent, and the inhibition effect on mold is poor, which cannot meet the requirements of wash-resistant and mildew-resistant performance of fabrics. CN115478435A discloses a water-based long-acting mildew-resistant agent for fabrics. Although this mildew-resistant agent has wash-resistant and mildew-resistant effects, the production process is complex and the production cost of enterprises is high.

[0005] In summary, the mildew-resistant finishing methods on the market currently cannot meet the requirements of wash resistance, mildew resistance, low production cost, and easy processing, and cannot meet the needs of consumers for high-quality textiles. SUMMARY

[0006] The purpose of the present application is to provide a finishing method for improving the wash resistance and mildew resistance of textile fabrics. The textile fabrics treated by this method have good antibacterial and mildew resistance and wash resistance, prolong the service life of the textile fabrics, and improve the health and safety.

[0007] In order to achieve the above-mentioned purpose, the technical solutions adopted by the present application are as follows: In a first aspect, the present application provides a finishing method for improving the wash resistance and mildew resistance of a textile fabric, comprising the following steps: treating the textile fabric with an aqueous solution containing a mildew-resistant agent; The mildew-resistant agent is selected from one or more of triclosan, p-chloro-m-dimethylphenol and 1,2-benzisothiazolin-3-one; The pH of the aqueous solution containing the mildew-resistant agent is 8.0-9.5.

[0008] The concentration of the aqueous solution containing the mildew-resistant agent is 10 g / L-30 g / L.

[0009] The pH adjusting agent is selected from one or more of ethylenediamine, ammonia, triethanolamine and morpholine.

[0010] The treatment process is a padding process. The padding process is one dip and one pad or two dips and two pads.

[0011] The finishing method further comprises: setting the treated textile fabric; and the setting conditions are: a temperature of 110°C-170°C and a time of 90s-150s.

[0012] The mildew-resistant solution further contains a crosslinking agent and / or a water-repellent agent.

[0013] In a second aspect, the present application provides a textile fabric obtained by treating the textile fabric using the above finishing method.

[0014] Compared with the prior art, the present application has the following beneficial effects: The present application first proposes the use of triclosan, p-chloro-m-dimethylphenol and 1,2-benzisothiazolin-3-one as a mildew-resistant finishing agent in the field of textile fabric finishing technology. The textile fabric is finished using the mildew-resistant agent by a padding process, and the pH of the aqueous solution of the mildew-resistant agent is strictly controlled, so that the finished textile fabric not only has excellent mildew resistance, but also has good wash fastness, is suitable for products with high washing frequency in the fields of home textiles and outdoor wear, effectively prolongs the product life of the textile fabric, and improves the health and safety. At the same time, the finishing method provided by the present application uses mildew-resistant agents and other reagents that are widely available and easy to obtain, has a simple preparation process and relatively low cost, and is suitable for large-scale production by enterprises. DETAILED DESCRIPTION

[0015] The present application will be further described below in conjunction with specific embodiments, but the present application is not limited to the following embodiments.

[0016] In the following examples, the experimental methods used are conventional methods unless otherwise specified.

[0017] In the following examples, the reagents, materials and instruments used are commercially available unless otherwise specified.

[0018] Example 1 The present example provides a finishing method for improving the washability and mildew resistance of textile fabrics, comprising the following steps: (1) Add BIT to deionized water, stir until uniform, then slowly add the alkaline pH adjuster ethylenediamine, stir until uniform, and then add until fully dissolved, to obtain a clear solution with a concentration of 10 g / L and a pH of 9.5, which is the mildew-resistant finishing agent; (2) Use the above mildew-resistant finishing agent to treat polyester fabric using a two-dip-two-nip process, then dry at 110°C for 150 s, and then test after the fabric has been conditioned.

[0019] Example 2 The present example provides a finishing method for improving the washability and mildew resistance of textile fabrics, comprising the following steps: (1) Add triclosan to deionized water, stir until uniform, then slowly add the alkaline pH adjuster ammonia, stir until uniform, and then add until fully dissolved, to obtain a clear solution with a concentration of 15 g / L and a pH of 9.5, which is the mildew-resistant finishing agent; (2) Use the above mildew-resistant finishing agent to treat polyester fabric using a one-dip-one-nip process, then dry at 170°C for 90 s, and then test after the fabric has been conditioned.

[0020] Example 3 The present example provides a finishing method for improving the washability and mildew resistance of textile fabrics, comprising the following steps: (1) Add p-chloro-m-dioxylphenol to deionized water, stir until uniform, then slowly add the alkaline pH adjuster triethanolamine, stir until uniform, and then add until fully dissolved, to obtain a clear solution with a concentration of 30 g / L and a pH of 8.0, which is the mildew-resistant finishing agent; (2) Use the above mildew-resistant finishing agent to treat polyester fabric using a one-dip-one-nip process, then dry at 170°C for 90 s, and then test after the fabric has been conditioned.

[0021] Comparative Example 1 The difference from Example 1 is that a commercially available conventional mildew-resistant agent is used, which mainly contains zinc pyrithione.

[0022] Comparative Example 2 The difference from Example 1 is that a non-ionic antibacterial and mildew-resistant agent TF-619 produced by Zhejiang Chuanhua Chemical Group is used.

[0023] Comparative Example 3 The difference from Example 1 is that a polyguanidine quaternary ammonium salt cationic textile mildew-resistant agent Micro-KS116 produced by Mingkai is used.

[0024] Comparative Example 4 The difference from Example 1 is that the pH of the aqueous solution is 7.9.

[0025] Comparative Example 5 The difference from Example 1 is that the pH value of the aqueous solution is 9.6.

[0026] Test Example The textile fabric obtained in Examples 1-3 above was subjected to mold resistance performance testing.

[0027] According to the national standard GB / T 24346-2009 "Evaluation of mold resistance performance of textiles", the sample was washed according to the washing procedure with reference to GB / T 8629-2017 "Textiles - Household laundry and drying procedures for testing" 4N procedure, dried after washing according to the procedure F in 10.2.1 of GB / T 8629-2017, and then subjected to mold resistance performance testing after washing for 10 times and 20 times.

[0028] Table 1 Reference standard for evaluation of mold resistance effect of textiles

[0029] Table 2 Evaluation of mold resistance performance of textiles

[0030] From the test results in the above table, it can be seen that the textile fabric treated in Examples 1-3 still has a mold resistance grade of 0 after washing for 20 times, indicating that the finishing agent has good antibacterial and mold resistance and washing resistance. The textile fabric treated with conventional mold resistance agents in Comparative Examples 1-3 has a mold resistance grade of 3 after washing for 10 times and a mold resistance grade of 4 after washing for 20 times, indicating that the finishing method cannot make the textile fabric have both washing resistance and mold resistance performance. The textile fabric treated in Comparative Examples 4-5 has a mold resistance grade of 3 after washing for 10 times and a mold resistance grade of 4 after washing for 20 times, indicating that only when the pH value of the mold resistance agent solution is within a specific range can the treated textile fabric have both washing resistance and mold resistance performance.

[0031] Although the present application has been described in detail with general description and specific embodiments above, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application are within the scope of the present application.

Claims

1. A finishing method for improving the washability and mildew resistance of textile fabrics, characterized in that, The steps include: treating the textile fabric with an aqueous solution containing an antifungal agent; The antifungal agent is selected from one or more of triclosan, p-chloro-meta-xylenol and 1,2-benzisothiazolin-3-one; The pH of the aqueous solution containing the antifungal agent is 8.0-9.

5.

2. The sorting method according to claim 1, characterized in that, The concentration of the aqueous solution containing the antifungal agent is 10 g / L to 30 g / L.

3. The sorting method according to claim 1, characterized in that, The pH adjusting agent is selected from one or more of ethylenediamine, ammonia, triethanolamine, and morpholine.

4. The sorting method according to claim 1, characterized in that, The process described is a rolling process.

5. The sorting method according to claim 4, characterized in that, The immersion rolling process is either one dip and one roll or two dips and two rolls.

6. The sorting method according to claim 1, characterized in that, The finishing method also includes: setting the treated textile fabric; The conditions for the shaping process are: temperature of 110℃-170℃ and time of 90s-150s.

7. The sorting method according to claim 1, characterized in that, The antifungal liquid also contains a cross-linking agent.

8. The sorting method according to claim 1, characterized in that, The anti-mildew liquid also contains a waterproofing agent.

9. A textile fabric, characterized in that, Fabrics obtained by processing using the finishing method described in any one of claims 1-8.

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