25 Wash Test Piece March 2018

25 Wash Test Piece March 2018

BY Admin
May 8, 2018

A 25 Wash test piece, during which the quality of the linen we supply to our customers is tested for whiteness and brightness after multiple washes, was carried out in May 2018 by independent laundry auditors LTC Worldwide (www.ltcworldwide.com) and their findings were as follows.

We scored 95.8% (excellent) for the “whiteness reflectance” of our Cottons and 92.0% (excellent) for our Polycottons and we scored 104 (excellent) for the “brightness” of our Cottons. They also tested the same items for “Cycles to Failure”, which is to say the number of times we can expect each of them to be laundered before they fatigue and become unusable, and for this we scored 200 Cycles.

In technical terms what this means is that “the ‘excellent’ results for Cotton and Polycotton reflectance show that soil is being suspended within the wash liquors”, whilst “the improvements to both Cotton and Polycotton brightness highlight that the OBAs (Optical Brightener Agents) present within the detergent formulations are being effective.”

The report concludes: “A good set of results with a decline in some areas worthy of operational and detergency based investigations. The “Excellent” results for Cotton and Polycotton Reflectance have been maintained showing that soil is being suspended within the wash liquors. However, both Brightness results have dipped slightly and this is the area worthy of investigation, action and monitoring as required to ensure Aberdeen’s circulating stocks retain a consistent appearance in the market place. These results have again been coupled with a Cycles to Failure result of >200 indicating the achievement of effective stain removal without compromising linen life leading to the maximisation of any financial investments in linen stocks. Rinsing efficiencies and chemical neutralisation are again efficient, with the pH remaining at 7.0. Finally, the Residual Iron result has increased slightly and whilst not an immediate cause for concern, should remain a monitoring point for your management team and within future TP’s.”




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