| 摘要 |
A method for measuring the diffusion performance of an acid dye in color paste comprises: preparing primary paste with a certain solid content using a paste material, and adding an appropriate amount of the primary paste into a transparent cylindrical container; additionally taking an appropriate amount of the primary paste and adding a dye to be measured to prepare the color paste, then flatly and uniformly paving a layer of a fixed amount of color paste on the upper end surface of the primary paste in the cylindrical container; and finally, placing the cylindrical container in an automatic temperature control device for constant-temperature treatment for 1-5 hours at a temperature of 60℃ to 95℃, so that the dye in the color paste on the empty top of the primary paste in the cylindrical container diffuses downwards to the bottom of the cylinder; sampling 0.1-1.0 g of the primary paste from a sampling hole at the bottom of the cylindrical container, and diluting the sampled primary paste to 10-100 mL with deionized water. An objective of the present invention is to provide a method capable of accurate measurement of the diffusion performance of an acid dye in color paste, which is simple in operation steps, free of high temperature and high pressure, safe and reliable in experiments, high in data stability and good in result reappearance. |
