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Novel chlorinated water resistant detection method for textiles

A detection method and technology for textiles, which are applied in the direction of analysis by chemical reaction of materials, and material analysis by observing the impact on chemical indicators, which can solve the problem of unregulated usage, reduced work efficiency, and increased titration time, etc. problems, to ensure accuracy and uniformity, to ensure qualified validity, and to improve work efficiency

Inactive Publication Date: 2019-01-11
必维申优质量技术服务江苏有限公司
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Problems solved by technology

[0003] The titration method for the detection of textile resistance to chlorinated water is not perfect, which affects the accuracy of the titration and reduces work efficiency. The specific reasons are: 1. There are no regulations on the amount of potassium iodide, hydrochloric acid and starch used in the titration of sodium hypochlorite, which will increase the titration. Time; 2. The time interval of sodium hypochlorite titration is not stipulated, and the interval time has an impact on the titration result; 3. The titration color reaction is not indicated

Method used

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  • Novel chlorinated water resistant detection method for textiles
  • Novel chlorinated water resistant detection method for textiles
  • Novel chlorinated water resistant detection method for textiles

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Embodiment

[0052] Table 2 Test results of three test methods

[0053]

[0054] The test method for ①-⑥ fabrics in Table 2 is 20mg / L available chlorine in GB / T 8433. The test conditions are: 1. Dilute 9.7ml of solution 1, 100ml of solution 2, and 500ml of solution 3 to 1L; L adjusts the pH to 7.5±0.5; 3. Put the working solution and the sample into a separate steel tank according to the bath ratio of 100:1, and rotate it in a water bath at 27±2°C for 1 hour.

[0055] Both fabrics ⑦ and ⑧ in Table 2 were tested by two methods, namely 50mg / L available chlorine and 100mg / L available chlorine in GB / T8433.

[0056] 50mg / L available chlorine test conditions are: 1. Dilute 24.1ml of solution 1, 100ml of solution 2, and 500ml of solution 3 to 1L; 2. Use sodium hydroxide C (NaoH)=0.1mol / L or acetic acid C ( CH3COOH)=0.1mol / L to adjust the pH to 7.5±0.5; 3. Put the working solution and the sample into a separate steel tank according to the bath ratio of 100:1, and rotate it in a water bath at ...

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Abstract

The invention discloses a novel chlorinated water resistant detection method for textiles. The method comprises the following steps: performing sample treatment, sodium hypochlorite titrating, solution preparing, testing and grading. The detection method disclosed by the invention has the advantages that when novel chlorinated water resistant detection for textiles is performed, the application amount of the solvent is specified, the time of repeated test is reduced, and the working efficiency is improved; the interval time of adding sodium thiosulfate each time is determined, and the accuracyand consistency of the result can be ensured; by increasing color description, the time point of adding the solution can be well mastered by test controllers, the accuracy of the titration result isensured, the accuracy of the sodium hypochlorite can be ensured by ensuring the titration accuracy, the qualification validity of the result is further ensured. Therefore, the method is worthy of popularization.

Description

technical field [0001] The invention relates to the field of physical detection, in particular to a novel detection method for textiles resistant to chlorinated water. Background technique [0002] Sodium hypochlorite is an inorganic salt with a wide range of uses. Because of its strong oxidizing ability, fast action, good effect, and no pollution to the environment, it is used as a bleaching agent in the textile industry; Disinfectants and deodorants for air, air, etc.; at the same time, its production process is simple and its cost is low, and it is widely used as a builder and disinfectant in foreign countries; An important indicator; in order to use chlorinated bleaching agent for the disinfection of tap water and swimming pool water, the color fastness of textiles to chlorinated water is to measure the color fastness of the color of various textiles to sterilized tap water and swimming pool water; in the long-term test process, it is found that After some reactive dye ...

Claims

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Application Information

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IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 冯雷代龙凤王汇锋包健
Owner 必维申优质量技术服务江苏有限公司
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