The story
Founded by Hermann Schneider and Rudolf Schneider in 1932.1
The wordmark "Blendax" for toothpaste was registered in Germany on 4 January 1910, and the Blendax factory was founded in 1932 by the brothers Rudolf und Hermann Schneider in Mainz; production started in 1936. The goal was to produce a brand of toothpaste that would be affordable by everyone. By the end of the 1930s, Blendax had become Europe's largest producer of toothpaste with 43 million tubes per year. The product portfolio was expanded to include other personal hygiene products like shampoo, soap, skin cream and Mouthwash.
From Wikipedia’s article on Blendax, shared under CC BY-SA 4.0.3