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  • What is a fluorescent whitening agent?

    2022-12-09

    British physicist George Gabrielstokes first expounded the fluorescent phenomenon in 1852. In 1929, KRAIS.P first discovered that 6,7-dihydroxybolic beanins had fluorescent whitening effects; in 1940, German IG company developed a fluorescent whitening agent with practical value and began its commer Read More

  • Cómo probar el pliegue de poliéster durante el proceso de teñido?

    2022-12-07

    Hay muchos factores que afectan los pliegues de los tejidos embrionarios indefinidos en la producción. El experimento proporciona ayuda para la producción en masa al analizar la influencia de diferentes factores en los pliegues. El modelo utilizado en la prueba es un tanque de flujo de agua asiático grande de 1 tubo AK DSL 250. La prueba analiza la influencia en las arrugas a través de varios aspectos de la boquilla de la tina de tinte, la proporción del baño, la condición de la máquina, la velocidad de aumento y disminución de la temperatura, la carga de la tela y el uso de suavizante en el baño. En la prueba de la influencia del tipo de boquilla, la carga de la tela, la condición de la máquina y la proporción del baño en el pliegue, para eliminar la interferencia de los factores de aumento y disminución de la temperatura de teñido, la tasa de aumento y disminución de la temperatura se controló a 0,5 °C/min. para analizar. Read More

  • What causes dye aggregation?

    2022-12-05

    There are many reasons for dye agglomeration, generally due to the following reasons: 1. Operation reason: the chemical material is not complete;2. Polyester raw materials: more polyester oligomers;3. Dyeing water: the hardness is high, and the metal ions in the water are affected;4. The heating rat Read More

  • The nature of the dye solution

    2022-11-29

    Water -soluble dyes generally contain water -soluble genes, such as sulfonic acid, carboxyl groups, etc. This type of dye can be dissolved in the aquatic solution. Read More

  • Dispersing by solvent dye

    2022-11-29

    Part 1I have always wanted to discuss the decentralization of solvent dyes with my friends. However, I have been going out recently, so I did not find a suitable opportunity to write. Read More

  • What are the requirements for heating and cooling in disperse dye dyeing (high temperature and high pressure method)

    2022-11-28

    1) Heating requirements:Control the temperature rise, otherwise the temperature rises too fast, which will cause the dye to be dyed too fast, resulting in chromatic aberration. ① Colored flowers: refers to the uneven dyeing and dyeing.② The purpose of heat preservation in the middle (90℃*5') is to m Read More

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