German companies are experimenting with carbon paper

According to the German "Business Daily" report, rapeseed oil can make business and institutional forms that must have automatic replication functions more environmentally friendly. Currently Auguste Keller Paper Mills AG is working with the patronage Association of Renewable Resources Professionals to conduct large-scale experiments on the use of micro-encapsulated rapeseed oil technology in automated copy paper.
In the past, people wrote multiple copies of originals using carbon paper or blue paper. This often-oily replication method was once replaced by a cleaner copy method using microcapsules of mineral oil on the back of carbon paper. For environmental reasons, mineral oil will be replaced by ecological rapeseed oil products. Nikolaus Grener, head of the Köhler paper mill, said: "If possible, the replication effect of this method will not have quality problems."
The principle of this ecological copying method is the same as the original copying method. It is also under the pressure of human writing or the machine's beating, so that the back of carbon paper is full of oily micro-encapsulated debris. The released oily reaction liquid produces a color reaction on the underlying laid paper.
Gregner said that if the new method works, it will save thousands of tons of mineral oil in Europe. At present, Koehler is producing more than 140 tons of bio-oil automatic carbon paper for this test. So far, test copy paper has been carried out according to plan. In different weather conditions and all popular printing methods, the effect of copying is the same as the usual standard.