Test method for physical property of viscose colourant
A detection method and a technology of physical properties, applied in the preparation of test samples, weighing by removing certain components, etc., can solve the problems of inability to pre-control the quality of colorants
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Embodiment 1
[0017] The physical performance detection method of viscose colorant, the steps are as follows:
[0018] A. Randomly select a colorant, fully stir the colorant to be tested to make it evenly mixed, weigh 4.5g of the colorant in an evaporating dish with a constant weight, put it in an oven at 103°C and dry it to a constant weight, take it out and put it in quickly In the desiccator, cool to room temperature and weigh, and calculate the solid content percentage of the colorant by the following calculation formula, the solid content percentage of the colorant = the mass of the colorant after drying × 100 / the mass of the colorant before drying, and the calculated parallel sample The difference is not more than 1.0%.
[0019] B. According to the solid content of the measured colorant sample, according to the colorant liquid with a weight percentage of 2.9%, the corresponding colorant is weighed and placed in a beaker, and then a certain volume of desalted water is added to make t...
Embodiment 2
[0023] The physical performance detection method of viscose colorant, the steps are as follows:
[0024] A. Randomly select the colorant, fully stir the colorant to be tested to make it evenly mixed, weigh 5g of the colorant in an evaporating dish with a constant weight, put it in an oven with a temperature of 105°C and dry it to a constant weight, take it out and put it in a dry place quickly Cool to room temperature and weigh, and calculate the solid content percentage of the colorant by the following calculation formula, the solid content percentage of the colorant = the mass of the colorant after drying × 100 / the mass of the colorant before drying, and the calculated weight of the parallel sample The difference is not more than 1.0%.
[0025] B. According to the solid content of the measured colorant sample, according to the colorant liquid of 3% by weight, the corresponding colorant is weighed and placed in a beaker, and then a certain volume of desalted water is added ...
Embodiment 3
[0029] The physical performance detection method of viscose colorant, the steps are as follows:
[0030] A. Randomly select a colorant, fully stir the colorant to be tested to make it evenly mixed, weigh 5.5g of the colorant in an evaporating dish with a constant weight, put it in an oven at 107°C and dry it to a constant weight, take it out and put it in quickly In the desiccator, cool to room temperature and weigh, and calculate the solid content percentage of the colorant by the following calculation formula, the solid content percentage of the colorant = the mass of the colorant after drying × 100 / the mass of the colorant before drying, and the calculated parallel sample The difference is not more than 1.0%.
[0031] B. According to the solid content of the measured colorant sample, according to the colorant liquid with a percentage by weight of 3.1%, the corresponding colorant is weighed and placed in a beaker, and then a certain volume of desalted water is added to mak...
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