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fluorescent whitening agent
Ultramarine pigment is the oldest and brightest blue pigment. The bright blue is slightly red. It is harmless and environmentally friendly, and belongs to the category of inorganic pigment.
It is used for whitening, can eliminate the yellow light in white paint or other white pigments, insoluble in water, alkali and high temperature resistance, extremely stable to the sun and wind and rain erosion in the atmosphere, but not acid resistant, decomposed and discolored in case of acid.
① Coloring: for painting, rubber, printing and dyeing, ink, color painting, architecture, etc.
② Whitening: used in paint, knitting industry, papermaking, detergent, etc.
③ Special for painting: it can be made into oil painting, watercolor painting, gouache painting and acrylic painting pigments respectively by adding blended oil, glue and propylene into the quqing powder. Ultramarine belongs to mineral pigments, transparent, weak covering power and high brightness, not suitable for painting very dark colors. But it is suitable for decorative color, especially in ancient Chinese architecture
Packing and Storage:
In accordant with good industrial practice, handle with care and prevent contamination of the environment. Avoid dust formation and ignition source.
Ultramarine blue has small, uniformly sized particles of a single color, but (being a ground-up natural stone) lapis pigment is a mix of colors and irregularly shaped particles, which have a different texture and reflect light differently.
In China, copper was blended with heavy elements such as mercury to create shades of blue. So new and exciting were the colours created that they were attributed healing qualities and mixed into poisonous “medicinal” concoctions. ... Wherever it came from, blue pigment remained costly to produce
The color blue has been the Holy Grail for pyrotechnics experts since fireworks were invented more than a millennium ago. It's by far the hardest color to produce.
The difference between these varieties may seem subtle, but whether a blue leans towards red or green is imperative in colour mixing. ... In both ranges, French Ultramarine is slightly warmer (redder) and more granulating, whereas Ultramarine Blue is cooler (greener) and less granulating.