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Quantitative determination method for fiber content of viloft fiber and acrylic fiber or spandex blended textiles

A quantitative detection method and fiber content technology, which is applied in the detection field of fiber content of blended products containing viloft fiber and acrylic fiber or spandex, can solve the problems that affect the accuracy of measurement results, the efficiency of measurement work, and low detection efficiency, and achieve high accuracy performance, shorten detection time, and improve detection efficiency

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

AI Technical Summary

Problems solved by technology

[0008] In the field of quality inspection, the chemical dissolution method is usually used for the quantitative analysis of blended products. The so-called chemical dissolution method is to select a certain reagent to dissolve one component in the blended product, and then calculate the content of the other component. However, the chemical dissolution method also has Many shortcomings, for example, the dissolution reagent and 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 acrylic fiber or spandex blended textiles
  • Quantitative determination method for fiber content of viloft fiber and acrylic fiber or spandex blended textiles
  • Quantitative determination method for fiber content of viloft fiber and acrylic fiber or spandex blended textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 viloft fiber correction factor test

[0021] Take a certain amount of viloft 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 viloft fiber with a balance with an accuracy of 0.1 mg According to the weight of the blended product (g): reagent (mL) = 1:100 bath ratio, the blended product is calculated by mass (g), the reagent is calculated by volume (mL), and the viloft fiber is placed at 90-110 In the N,N-dimethylformamide or N,N-dimethylacetamide solution under the condition of ℃, after continuous shaking for 5 minutes to 30 minutes, rinse the viloft fiber twice with the same temperature reagent and then clean it with water. 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 0.1 mg. By comparing a a...

Embodiment 2

[0027] Example 2 N, N-dimethylformamide dissolved acrylic fiber test

[0028] Take 2 parts of viloft fiber and acrylic fiber blended products whose component content is unknown, and place them in a constant temperature oven at 105°C for 3 hours. Weigh the weight of the blended product with a balance with a density of 0.1 mg, and record it as m 0 According to the sample (g): reagent (mL) = 1:100 bath ratio, the blended product is placed in the N,N-dimethylformamide solution at 100 ° C, and after continuous shaking for 5 minutes, the acrylic fiber is completely dissolved in For N,N-dimethylformamide solution, wash the insoluble fiber (viloft fiber) with water until neutral, dry it in a constant temperature oven at 105°C, then quickly take it out and cool it to room temperature in a desiccator. The balance of 0.1mg weighs m 1 . Among them, the mass of viloft fiber in the blended product is m 1 , the mass of acrylic fiber is m 0 -m 1 .

[0029] After calculation and reasoni...

Embodiment 3

[0038] Example 3 N, N-dimethylacetamide dissolved acrylic fiber test

[0039] Take 2 parts of viloft fiber and acrylic fiber blended products whose component content is unknown, and place them in a constant temperature oven at 105°C for 3 hours. Weigh the weight of the blended product with a balance with a density of 0.1 mg, and record it as m 0 According to the sample (g): reagent (mL) = 1:150 bath ratio, the blended product was placed in N,N-dimethylacetamide solution at 95°C, and after continuous shaking for 10 minutes, the acrylic fiber was completely dissolved in N , N-dimethylacetamide, wash the insoluble fiber, viloft fiber, twice with N,N-dimethylacetamide at the same temperature, then wash it with water, dry it in a constant temperature oven at 105°C, and then quickly Take it out and place it in a desiccator to cool to room temperature, and weigh m with a balance with an accuracy of 0.1 mg 1 . Among them, the mass of viloft fiber in the blended product is m 1 , th...

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Abstract

A provided quantitative determination method for fiber content of viloft fiber and acrylic fiber or spandex blended textiles comprises the following steps: S1, putting viloft fiber and acrylic fiber or spandex 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 in N,N-dimethylformamide or N,N-dimethylacetamide according to the sample (g) to reagent (mL) bath ratio of 1:100-200, continuously shaking at 90-100 DEG C for 5-30 min; and S3, washing fiber indissolvable in N,N-dimethylformamide or N,N-dimethylacetamide 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 90-100 DEG C, and the method has extremely high accuracy and helps to substantially shorten the detection time.

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 acrylic fiber or spandex. Background technique [0002] Viloft fiber, translated as Viloft fiber or Viloft fiber, is another regenerated cellulose fiber produced by British Acordis company after Tencel fiber. It is artificially extracted from high-quality wood that has been specially cultivated ecologically. Produced by the solvent method, it 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 environmentally friendly fiber. Because viloft fiber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 方方余伟梅欧海龙蔡丽蓉
Owner GUANGDONG DONGGUAN QUALITY SUPERVISION TESTING CENT
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