removing ink and other finishing materials, like coatings, sizings, and adhesives from printed-paper. The complex de-inking process is what makes recycling paper difficult and ultimately adds to the cost of a recycled sheet of paper. To produce high-quality recycled or recycled content papers for printing and writing, the de-inking process needs to be thorough. The goal is to end up with reusable fiber that has few impurities, since impurities lower the quality of a recycled sheet and can some- times damage equipment in the papermaking and printing process. Modern offset and flexographic ink, photocopier and laser printing "ink," ultraviolet and thermography coatings, and adhesives make it increasingly difficult to de-ink paper. De-inking process see also bleaching, flotation, pulping wood, recycled paper.
Process consisting of separating the ink from the fibers. This process is only carried out when the end-product needs it, such as for printing and writing paper, for magazines, for cellulose wool, and for certain types of packaging. De-inking consists of separating the ink particles mechanically and through the use of soap to create bubbles. While fixing themselves on particles of ink, these bubbles float up to the surface of the vat and are then recovered. According to their composition, the "sludge" derived from de-inking can be reused in the agriculture and forest management, as soil amendment or to find other applications.
The process of removing inks from recycled papers so that it can be reused in the paper making process
Process consisting of removing the ink and other undesirable materials from wastepaper by mechanical disintegration, chemical treatment, washing and bleaching before reusing as a source of papermaking fiber.
The mechanical or chemical removal of printing inks and other foreign materials from paper, so that the cellulose fibers can be reused or recycled.
Removal of printing ink and impurities from recovered paper to produce recycled fibre pulp with improved whiteness and purity.
Removing most of the ink, filler and other materials from waste paper before using it to manufacture new paper.
The chemical or mechanical removal of ink from printed wastepapers so that the stock may be reused or recycled.
The de-inking process removes contaminants such as ink and glues from wastepaper in order to extract the cellulose fiber. Usually this requires extensive processing through a variety of pulping, screening, cleaning, washing, and/or floatation equipment.
Removal of printing ink from recycled paper as part of preparation of recycled pulp.
The removal of ink from wastepaper by flotation and/or washing prior to recycling.
Chemical and mechanical processes used to separate inks from fibres when pulp is processed from recovered paper.
A process which removes ink, toner, coatings and most fillers from recovered paper. The environmental priority is to make this process TCF, totally chlorine free. All of the post consumer fiber used in ENVIRONMENT® Papers is manufactured TCF.
Process used to remove ink from waste paper to achieve an acceptable shade. This process principally uses water and detergents and is environmentally a relatively benign process.
