What is the reason why light powder does not change color when it is light?

In the current era, the situation is endless. Many of them should have the phrase "There is nothing you can't do, but you can't think of it." The light-smelting powder manufacturers have encountered many people asking why the light-powder is not colored after the sun has been made. Is this common? How to solve it? In many people's eyes, I don't know what to do. Let's analyze the reason.

Usually, if the optical powder does not change color, it may be improper operation or sublimation of the fabric. Therefore, when using the light powder, we should strictly use it according to the requirements. The following light powder manufacturers will bring you complete light. To use the powder, pay attention to the following points:

1, should avoid the photosensitive color powder processing above 280 degrees Celsius.

2. Avoid using photochromic powder and UV absorber at the same time.

3, the photosensitive color change powder is highly sensitive to polarity, adding different additives or using different substrates, may cause chromatic aberration.

4, storage: photosensitive color powder should be sealed and stored in a closed, dry, dark place, avoid direct sunlight.

The light powder manufacturers introduce us to the principle of the color change of the light-changing materials in the sunlight: after ultraviolet or sunlight, absorb ultraviolet rays or sunlight, and produce color changes, when the ultraviolet rays or sunlight are lost, the color is restored. .

UV-chromic pigments are the light-changing powders we often say. UV-color-changing pigments are organic light-changing materials. They can be used in the clothing industry and the anti-counterfeiting industry, because it basically changes color when it meets ultraviolet light. In this era, people pursue Fashion, it is not uncommon to use sunlight color changing powder. Under normal circumstances, UV photochromic pigments have the following characteristics:

1, UV photochromic pigments have four basic four: red, blue, yellow, purple

2. The product made of optically variable pigment is colorless (or the natural color of the product) in the absence of ultraviolet light source, and is discolored under the environment of ultraviolet light source (or the mixed color of natural and photochromic of the product).

3. The design of optical powder products is mostly not required for indoor (no UV environment) and outdoor (with UV environment) color change.