Ordinary pen, ink contains a chemically stable pigment, which can keep writing for a long time. The thicker the chromonic substance, the more stable the chemical properties and the clearer the handwriting.
Eraser pen uses an unstable chemical substance as coloring substance, which can be easily oxidized into another colorless chemical substance, and some will react with water or high temperature to become colorless and odorless substances.
Extended data
Self-consumption fraud can constitute a criminal offence.
Self-wiping pen is a necessity in the clothing industry, and students can also practice writing and save paper. Its production and sales meet the needs of social development. Moreover, the state has not clearly stipulated that such products cannot be produced and sold.
If users know its characteristics, they still use it to sign contracts, write IOUs and so on. And obtain the other party's property through fictional facts and illusions. This kind of subjective intention will constitute the crime of criminal fraud and bear corresponding legal responsibilities.
In the process of writing IOUs, signing contracts and bill settlement. For contracts, use electronic printouts as much as possible; Bring your own signature pen when you need to sign and fill in the form; If necessary, stamp or fingerprint.
At the same time, the manufacturer is the first level of prevention. Professional pen covers and refills, eye-catching use reminders, can be distinguished from ordinary signature pens at a glance. This can not only prevent fraud, but also avoid unnecessary losses caused by taking the wrong pen.
China Net faded pen typed 300,000 IOUs into "white strips". The lawyer claimed that the product was innocent.
Baidu encyclopedia erasing pen