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Quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles

A quantitative detection method and polyester fiber technology, which can be applied in the direction of removing certain components and weighing, etc., can solve the problems of affecting the accuracy of measurement results, measurement efficiency, low detection efficiency, etc., so as to improve detection efficiency and shorten detection time. , The effect of strong acid resistance

Inactive Publication Date: 2014-10-29
GUANGDONG DONGGUAN QUALITY SUPERVISION TESTING CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the field of quality inspection, the chemical dissolution method is usually used for the quantitative analysis of the fiber content of blended products. The so-called chemical dissolution method is to use a certain reagent to dissolve one component in the blended product, and then calculate the content of other components. The method also has many shortcomings. For example, the dissolution reagent and the reaction temperature directly affect the accuracy of the measurement results and the efficiency of the measurement work. The chemical dissolution method used by the quality inspection unit usually takes 1 to 2.5 hours, and the detection efficiency is low.

Method used

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  • Quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles
  • Quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles
  • Quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 polyester fiber correction factor test

[0020] Take a certain quality of polyester fiber and place it in a constant temperature oven at 105°C for 3 hours. After it is fully dried, take it out quickly and place it in a desiccator to cool to room temperature. Weigh the polyester fiber with a balance with an accuracy of 0.1mg. The weight of the fiber, denoted as a, according to the blended product (g): reagent (mL) = 1:100 bath ratio, the polyester fiber is placed in sulfuric acid with a mass concentration of 70% to 80%, and it is continuously mixed at 40 to 110°C. After shaking for 60 minutes, wash the polyester fiber with water until neutral, dry it in a constant temperature oven at 105°C, then quickly take it out and place it in a desiccator to cool to room temperature, and weigh b with a balance with an accuracy of 0.1mg. By comparing the size of a and b, the mass loss of polyester fiber after treatment with sulfuric acid reagent can be obtained, and d=a / ...

Embodiment 2

[0025] The dissolution test of embodiment 2viloft fiber

[0026] In this experiment, 70% sulfuric acid, 75% sulfuric acid, and 80% sulfuric acid were selected as the dissolving reagents. A certain mass of viloft fibers were put into the above reagents respectively. ℃, 90℃, 100℃ conditions, according to Table 2, it can be seen that viloft fiber has good solubility in 70%-80% sulfuric acid reagent, and its dissolution time is rapid with the increase of temperature It becomes shorter and dissolves immediately when the temperature exceeds 100°C.

[0027] Table 2 viloff fiber dissolving performance test

[0028] category 20℃ 50℃ 70℃ 80℃ 90℃ 100℃ 70% sulfuric acid partially dissolved partially dissolved basically dissolved completely dissolved fast dissolve Dissolve immediately 75% sulfuric acid partially dissolved partially dissolved basically dissolved completely dissolved fast dissolve Dissolve immediately 80% sulfuric acid ...

Embodiment 340

[0029] Dissolution test at the time of embodiment 340 ℃

[0030] Take a certain amount of blended products of viloft fiber and polyester fiber whose component content is unknown, and place it in a constant temperature oven at 105°C for 3 hours. After fully drying, take it out quickly and place it in a desiccator to cool to room temperature. Weigh the weight of the blended product with a balance with an accuracy of 0.1 mg, and record it as m 0 , according to blended product (g): reagent (mL)=l: 100 bath ratio will blended product be placed in mass concentration and be 75% sulfuric acid, here, described blended product is by mass, and reagent is by volume. After continuous shaking at 40°C for 60 minutes, the viloft fibers are completely dissolved in sulfuric acid solution, and the insoluble fibers, namely polyester fibers, are washed with water until neutral, dried in a constant temperature oven at 105°C, and then quickly taken out and placed in a desiccator Cool down to room t...

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Abstract

A quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles compriess the following steps: S1, putting viloft fiber and polyester fiber blended textiles in a baking box with a constant temperature of 102-108 DEG C to bake to dry, then rapidly taking out and putting in a dryer to cool to room temperature, and weighing the mass of the blended textiles and recording as m0; S2, putting the blended textiles into sulfuric acid with the concentration of 70%-80%according to the sample (g) to reagent (mL) bath ratio of 1:100-200, continuously shaking at 40-100 DEG C for 2-60 min; and S3, washing fiber indissolvable in sulfuric acid reagent in the step S2 with water to neutral, putting in a baking box with a constant temperature of 102-108 DEG C to bake to dry, rapidly taking out and putting in a dryer to cool to room temperature, and weighing the residual mass of the blended textiles and recording as m1. The dissolving temperature is controlled at 40-100 DEG C, because polyester fiber at the temperature shows extremely strong acid resistance and viloft fiber can be completely dissolved, a final detection result is highly consistent with an actual value, and the method has extremely high accuracy.

Description

technical field [0001] The invention relates to a method for quantitative analysis and detection of fiber content in textiles, in particular to a method for detection of fiber content in blended products containing viloft fibers and polyester fibers. Background technique [0002] Viloft fiber, commonly translated as Viloft fiber or Viloft fiber in Chinese, is another new type of regenerated cellulose fiber produced by British Acordis company after Tencel fiber. It is artificially extracted from high-quality wood specially cultivated ecologically. The raw materials are extracted and produced by the solvent method, which is a pure natural, high-grade environmental protection, pollution-free and degradable fiber. The production process of viloft fiber will not pollute the environment. The auxiliary materials and additives used in the production process are non-toxic, and most of the auxiliary materials and semi-finished fibers can be recycled. It is a new type of green and envi...

Claims

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Application Information

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IPC IPC(8): G01N5/04
Inventor 方方罗锐球欧海龙蔡丽蓉
Owner GUANGDONG DONGGUAN QUALITY SUPERVISION TESTING CENT
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