Pulp Paper & Logistics


ENESSCO 13


further enhance removal of free wax by reducing these typical dispersion effects. Continued action of Enessco


promotes agglomeration to increase stickies/wax particle size. Smaller macro-stickies, very small micro-stickies and ‘suspended wax’ build into larger agglomerations. These newly- formed agglomerations are effectively removed by system screening equipment. This chemistry also maximises


removal of contaminants that are not removed by the fine screens. Enessco reacts with entrained air in the system to lower the


‘apparent density’ of stickies and wax that are not removed by mechanical screens. This mechanism enables


‘micro-air bubbles’ to adhere to the stickies/wax/Enessco matrix. This allows agglomerates of ‘micro-stickies and wax’, with actual specific densities of 1.0 to be perceived as much lighter. These smaller agglomerations are subsequently removed from the fibre stream by lightweight cleaning equipment. The reduction of entrained air in the system results in improved stock drainage and eliminates/reduces system defoamer use.


Contamination removal: Contaminant agglomerations are subsequently removed by equipment typically found in today’s recycled fibre stock preparation systems. Coarse and fine screening remove large agglomerates, while lightweight material removal equipment such as reverse/through-flow centri- cleaners, gyro-clean and dissolved air flotation (DAF) units remove smaller agglomerations that Enessco has ‘density’ modified.


Passivation: Contaminants that do remain with the pulp are effectively


passivated. The inorganic portion of Enessco specifically neutralises the surface of these small stickies and wax particles. The inorganic barrier detackifies the surface and inhibits stickies deposition on paper machine fabrics. Many applications also experience significant stickies control benefits in the dryer section and throughout the converting/ printing process. More information from Enessco


International, Hampton, New Hampshire 03842, USA. Tel: 1 603 926 4830. Website: www. enessco.com Email: steve@ enessco.com


Best practice in coffee cup recycling demonstrated INDUSTRY NEWS


In what is seen as an example of the circular economy, the first reusable coffee cup that enables contactless payments is being packaged in a folding carton made from recycled takeaway cups. Costa Coffee’s ‘Clever Cup’,


which uses Barclaycard contactless payment technology, is also creating value from the UK coffee chain’s own waste stream by recycling its takeaway cups. Each box contains waste fibre from one ‘medio’-sized cup. Cumbria-based James Cropper has been working with Costa on recovering and recycling its takeaway coffee cups since the launch of CupCycling in September 2017. The project to develop Clever Cup’s packaging is a good example of what can be produced from cup fibres processed through the world’s first-ever facility dedicated to converting cups into fine papers and sustainable packaging.


James Cropper is helping the Costa chain recycle its paper cups The launch forms part of Costa


Coffee’s wider re-launch of its ‘next generation’ reusable cup range, giving customers the option to use reusable cups over single-use takeaway cups. Richard Burnett, market


sector manager from James Cropper, said: “This is a really exciting step for Costa who have brought about the marriage of


technology and sustainability, of convenience and environmental responsibility. They are one of the leading lights on the high street in addressing the issue of disposable coffee cups, setting an example for others in the coffee business. “To date, we have recycled 30 million coffee cups at our world-first CupCycling facility.


However, we actually have the capacity to convert 500 million per year into papers for packaging in all colours for anyone wanting to follow in Costa’s foot-steps.” Jason Cotta, managing director of Costa Coffee, commented: “Whilst we are committed to ensuring more takeaway coffee cups are recovered and recycled we also want to incentivise and reward customers who help reduce the number of takeaway cups being wasted, and hope the innovative Clever Cup will become an additional incentive for increasing the use of reusable cups.”


James Cropper’s CupCycling


facility at its paper mill in Kendal has been praised for its ground- breaking approach to solving the waste coffee cup issue. The company is also best known for its custom coloured papers and moulded fibre products for packaging.


January/February 2019


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