Asahi Kasei Home Products Corp released a pen for drawing characters and pictures on Saran Wrap.
It is expected to be used for communications using Saran Wrap and pictures drawn on box lunches.
The ink of the pen is not transparent and can be clearly seen on Saran Wrap. It is a special water-based ink and is not repelled by Saran Wrap. When it dries, it becomes waterproof. The ink does not melt when microwaved. Even when all the ink contained in the pen is eaten, it causes no harm, the company said.
Six pens (red, blue, black, green, yellow and white).