lithopone pigments suppliers

Suppliers of printing inks recognize the value of incorporating R-906 rutile titanium dioxide into their formulations. By doing so, they can offer their clients inks of higher quality that meet stringent performance standards. The pigment's lightfastness and weatherability are particularly crucial for applications requiring outdoor exposure, such as billboards and vehicle wraps, where resistance to UV radiation and extreme temperatures is imperative.

...

Both P25TiO2NPs (with or without vitamin B2) were not found beyond the epidermis in 99% of the analyzed TEM images (Fig. 8). This is coherent with previous findings showing that nanoparticles greater than 50 nm can not penetrate the skin, even in vivo models with movement, stretching, and friction [54]. However, in one of the zones, a few nanoparticles were observed inside a hair follicle. This could be due to the follicle exposure after the localized rupture of this physical barrier when rats were shaved in order to clean the area for cream topical administration. This finding suggests that nanoparticle-based sunscreen should not be applied on recently shaved or harmed skin, in order to avoid nanoparticle skin penetration.

...
{随机栏目} 2025-08-16 04:15 2469