Environmentally friendly, scratch-resistant, no irritating odor, etc.

1. Environmental protection: Soybean ink uses edible-grade vegetable oil as the basic raw material, which is more environmentally friendly than traditional petroleum-based ink. It is a renewable resource, reduces dependence on non-renewable energy sources, and produces fewer harmful chemicals during manufacturing and use.

2. Scratch resistance: Compared with other types of inks, soy ink has better scratch resistance. When a book or print is rubbed, writing does not transfer easily to hands or other surfaces.

3. No irritating odor: Traditional petroleum-based ink will emit a pungent odor when the temperature rises. Due to its composition characteristics, soy ink emits a small smell during use and is not obviously irritating.