Fluorescent Pigment for Crayons | Wanlong

1. How do fluorescent pigments get into crayons?

Crayons are a mixture of wax (such as paraffin), pigments and other additives. When making fluorescent crayons, manufacturers will add fluorescent pigments to molten wax, stir evenly, and then cool and form.
A brief description of the production steps:
Melt the wax: heat the wax to a certain temperature to liquefy it.
Add fluorescent pigments: add pigments in proportion and stir carefully.
Add additives, such as antioxidants, mildew inhibitors, etc., to ensure product stability;
Injection molding: pour the mixture into the mold, cool and solidify;
Demolding and polishing: remove the crayon and trim the shape.
The most critical process is that the pigment must be evenly dispersed, making the particle size of the pigment small enough so as not to affect the writing and coloring effects.

Fluorescent pigment

2: What are the common fluorescent colors?

Although fluorescent crayons of various colors can be manufactured in theory, the most common colors on the market are:
Fluorescent Yellow: One of the brightest colors;
Fluorescent Orange: Common in safety signs;
Fluorescent Pink: Popular among girls;
Fluorescent Green: Full of technology;
Fluorescent Blue: Slightly low-key but still eye-catching.
Different colors use different fluorescent pigments, sometimes even a combination of several pigments.

3. How are these fluorescent pigments made?

The manufacture of fluorescent pigments is not a one-pot stew. Most of them start with specific dyes and are refined through multiple steps such as resin coating, high-temperature polymerization, and spray drying.
A common fluorescent pigment for crayons is "thermoplastic fluorescent pigment", which has the following characteristics:
Fine particle size (usually 2 to 5 microns);
Good heat resistance (above 100°C);
Non-toxic and environmentally friendly, suitable for children's products;
Not easy to migrate or fade.
The raw materials of this type of pigment usually include polyester resin, fluorescent dye and stabilizer.

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: 2025-05-23 17:10:23