Dye mixture is applied to printing ink

A few days ago, a patent application by Toyo Ink Manufacturing Co., Ltd., a dye mixture invented by Imagawa Ichiba, Chiba Midori, Yuasa Shigehiro and a printing ink containing the mixture was filed and published.

This is a dye mixture obtained by dry-grinding an organic dye in the presence of a printing ink resin, the resin being a synthetic resin for printing inks and extracted from natural pitch with a softening point of 120 to 125°C. The aliphatic hydrocarbon resin comprises 10 to 80 parts by weight of the synthetic resin and 0.1 to 5 parts by weight of the aliphatic hydrocarbon resin per 100 parts by weight of the organic dye.

Source: China Textile News