De-inking

De-inking

The process of removing ink, dyes, and other contaminants from paper so the pulp can be recycled.
References in periodicals archive ?
The cellulases have wide range of application in different field such as in farm animal feed industry for the improvement of feed digestion (Karmakar and Ray, 2011), in juice industry for maceration process (Kuhad et al., 2011), in leather industry for final finishing step of fiber (Anish et al., 2007), in paper industry for de-inking (Bhat, 2000) and in textile industry for softening and finishing of cotton fabrics (Adsul et al., 2007).
Together with all other stakeholders, Siegwerk takes the discussion further and investigates the removal from inks and printed layers during the recycling process (de-inking) to improve the quality of the recyclates.
This allows for recycling through the de-inking system.
This Workshop will provide an introduction to "green" (versus marketing) and the guidelines to use more bio-renewable raw materials, to use less or no toxic raw materials and to improve the environmental aspects (de-inking, recycling and biodegradability) of printing inks.
In addition, the biodegradable properties of the 950BK MOF ink assist in the de-inking of printed matter during the recycling process.
Even in recycling processes, sludge produced during de-inking is a major source of pollution.
The criteria aim to promote the environmental efficiency of recycling and de-inking for printed paper products, the reduction of emissions of volatile organic compounds (VOCs) and the reduction and prevention of risks to the environment and human health related to the use of hazardous substances.
The Alsip, Ill.-based company expects the approach will allow it to reduce the use of de-inking chemicals, including caustic soda and peroxide, by up to 30%.
"The mill houses a pulp store, machine house, stock preparation facilities, tissue machines, de-inking plant, warehouse and offices."
The second project concerns a new de-inking plant which will increase the capacity of recycled tissue fibre in the UK by 'de-inking' fibres in recovered paper.
The downgrade reflects the expected deterioration in the company's financial risk profile due to its debt-funded capital expenditure for commissioning a de-inking plant.