What is fluorescence? Fluorescence is a common physical phenomenon of natural substances. Natural fluorescent substances are widely present in nature. Some common foods, such as soy sauce, liquor, coffee, Pu'er tea, etc. and some marine organisms, such as shrimp, crab, jellyfish, etc., can also produce fluorescence.
Substances that can make clothes fluoresce under ultraviolet light are special textile additives, called fluorescent brighteners. This type of substance, also known as fluorescent dyes, is a complex compound that can release light in a certain band from blue to green by absorbing ultraviolet rays in sunlight, thereby neutralizing yellow and making the dyed substance look whiter. Therefore, this type of substance emits blue-green fluorescence under ultraviolet light in the dark. Fluorescent brighteners are widely used in textiles, papermaking, washing powder, soap, rubber, plastics, pigments and paints.
Are fluorescent dyes toxic?
In fact, most of the fluorescent dyes you can come into contact with in life, such as those used on clothes, stationery, and stickers, are generally not toxic. As long as you don't eat it, don't inhale it, and don't touch it every day, it will basically not affect your body.
Which ones are safe?
Dyes for these purposes are usually safer:
Fluorescent effects on clothes (such as fluorescent T-shirts),
Fluorescent pens used in textbooks,
Colorful children's toys,
These products will be tested for safety before leaving the factory, so it is not a big problem for us.
What situations should we pay attention to?
You should be careful with some fluorescent dyes, such as:
Some industrial dyes used in factories are not good for the skin or body;
Professional dyes in laboratories (such as those used to dye cells) are cool, but toxic, so you need to wear gloves when using them;
If you accidentally eat dyes or inhale them into your nose, whether it is toxic or not, it is best to see a doctor.
Safety tips:
Don't touch fluorescent powder of unknown origin, especially those without packaging instructions;
Remember to wear gloves when doing experiments or handwork, and don't touch them directly;
Remember to wash your hands after using dyes, don't rub your eyes or eat.
How are fluorescent dyes colored?
Fluorescent dyes have very small molecules and are insoluble in water. Because they are insoluble in water, we need to use a dispersant to help them mix evenly in the dye solution so that they can be "brought" into the fabric.
When dyeing cloth, the cloth will first be soaked in the dye solution, then dried, and then undergo a step called "thermal treatment", which is to use high temperature to fuse the dye into the fiber.
During this high-temperature process, the dye drills into the fiber (such as polyester) like a small molecule and merges with the fabric. This process is very fast, but the color effect is very good!
Where can you buy Fluorescent pigments in bulk?
fluorescent pigments emit bright, visible light under ultraviolet or other light sources and are widely used in various applications, including fluorescent coatings, stationery, textiles, plastics, advertising signage, and electronic displays. As a professional Daylight fluorescent pigment ingredients. supplier and manufacturer, Wanlong Chemical Co., LTD. has nearly 10 years of experience in supplying and exporting fluorescent pigment ingredients from China. You can confidently purchase fluorescent powder from Wanlong Chemical Co., LTD. If you have any questions or concerns, please feel free to contact us and we will get back to you within 1 business day.
If you have needs please contact us.
Established in 1989, Wanlong Chemical Co., LTD. has been focusing on polymer synthesis and fine chemical intermediates research and development and production for nearly 40 years, and has developed three business systems - polymer materials, organic dyes and chemical intermediates, including Fluorescent pigment powder. We offer wholesale prices for bulk purchases, even for small quantities, and offer a free sample to potential customers. If you have needs please contact us.
Post time: 2025-04-10 15:07:10
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