What is the principle of carbon paper?
As a result of advances in science and technology, carbon paper is now coated with numerous dye capsules on the back of the upper sheet and coated with an acid powder on the underside of the sheet. When we use the pen in the upper front paper across the back of the capsule, will be crushed, the release of dye. When the dye meets the acidic powder on the lower front, it produces a dark blue color.
Ancient carbon paper is a black or blue paper sandwiched between two sheets of paper to complete the effect of carbon copy. But today's carbon paper doesn't have the middle paper
Once the two layers are reversed, the effect cannot be duplicated because there is no way to produce the above phenomenon.In fact, carbon paper can be divided into carbon carbon paper and the kind of non carbon paperCarbon carbon paperSuch papers are those that are coated or impregnated with mixed carbon or other coloring agents such as wax or stearic. For transfer to pen, pencil or typewriter will to ordinary paper.
