What is a transferable fluorescent whitening agent?

发布时间：2024-04-14 16:11:55 浏览次数：29次

　　Transferable fluorescent whitening agent is a color conditioner with the function of brightening and brightening, widely used in various fields such as papermaking, textiles, and detergents. There are strict standards prohibiting the addition of fluorescent whitening agents in tissues and other products.

　　Transferable fluorescent whitening agent is a fluorescent dye. Adding fluorescent whitening agent to the paper industry can improve the appearance of paper, make it white, reduce the cost of pulp bleaching, reduce energy consumption, and reduce environmental pollution. However, due to the potential harm to human health caused by the transferability of fluorescent whitening agents in paper, it is necessary to strengthen the restrictions on transferability of fluorescent whitening agents in relevant paper standards to ensure the personal health of consumers.

　　This fluorescent whitening agent can absorb invisible ultraviolet light and then convert it into longer wavelength blue visible light. The banknote verification pens we use in our daily lives contain invisible ultraviolet light. Using a regular purple banknote marker to illuminate the samples separately, the regular tissue appears light purple, while the sample containing a transferable fluorescent whitening agent appears slightly blue in color.

　　A transferable fluorescent whitening agent is a fluorescent dye that can make paper look clean and white. The understanding of the hazards of fluorescent whitening agents is not yet unified, and there is a lack of authoritative data on the toxicity of fluorescent whitening agents. However, to ensure the safety of consumers, the standard stipulates that tissues should not have transferable fluorescent whitening agents to prevent the transfer of fluorescent whitening agents to the human body.

　　The toxicity of fluorescent whitening agents is generally represented by LC50. The LC50 of the commonly used fluorescent whitening agent CBS (or CBS-X) in detergents is about 5000mg/kg, and the amount is very small, which cannot reach the toxic range. A large amount may lead to the production of cancer cells.