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Deinking is the industrial process of removing printing ink from paperfibers of recycled paper to make deinked pulp. The key in the deinking process is the ability to detach ink from the fibers. This is achieved by a combination of mechanical action and chemical means.
It is strained through screens, which removes plastic (especially from plastic-coated paper) that may still be in the mixture. It is then cleaned, de-inked (ink is removed), bleached, and mixed with water. Then it can be made into new recycled paper. [4] The share of ink in a wastepaper stock is up to about 2% of the total weight. [5]
Older ink erasers are therefore small knives designed to scrape off the top few microns of a sheet of paper, removing the ink that had penetrated. In concert with bladed ink erasers, an eraser similar to those at the end of pencils was also used, with additional abrasives, such as sand, mixed into the rubber.
An eraser (also known as a rubber in some Commonwealth countries, including South Africa [1] [2] [3] from which the material first used got its name) is an article of stationery that is used for removing marks from paper or skin (e.g. parchment or vellum). Erasers have a rubbery consistency and come in a variety of shapes, sizes, and colors.
Different paper mills are structured for different types of paper, and most “recovered office paper can be sent to a deinking mill”. [78] A deinking mill serves as a step in the recycling paper process. This type of mill detaches the ink from the paper fibers, along with any other excess materials which are also removed from the remaining ...
When it comes to small ink stains, you can apply the rubbing alcohol to a clean cloth or paper towel and start soaking the stain. After a few minutes rinse and blot.