Ink generally refers to the original text, and bamboo slips and silk books are not ink.

This topic is wrong, bamboo slips and silk books are ink.

Because the calligraphy ink left by pre-Qin mainly includes Shu Meng, bamboo slips and silk books, bamboo slips and silk books are all ink.

Ink is a Chinese character, which refers to the original calligraphy and painting or the remnants left by ink. Meng Qian Bi Tan Calligraphy and Painting by Shen Kuo in Song Dynasty.