Label Conference - Brigl & Bergmeister

More documents

Recommendations

Info

COD: chemical oxygen demand Chemical oxygen demand or COD = the amount of oxygen that is needed to chemically oxidise the organic compounds present in wastewater = « chemical degradation ». The COD test is carried out on waste water and/or test sample diluted with pure water by adding a mixture of bichromate and sulphuric acid which chemically oxidises all biologically- and non biologically degradeable organic materials. COD unit = mg O ² /litre. BOD-5/COD ratios in relation to the biodegradeability of adhesives • The higher the BOD-5/COD ratio (expresed as a percentage) the more easily will the material degrade biologically. We have identified 3 classes of products: • Readily biodegradeable : BOD-5/COD ratio > 50 %: includes caseins and starches, altough there is an indication that starches degrade more slowly. • Moderately biodegradeable: BOD-5/COD ratio between 40 – 50 %. • Non-biodegradable : BOD-5/COD ratio < 30 %: typical of a synthetic-base material.
The comparison of adhesives using BOD-5/COD ratios expressed as a percentage Typical properties of labelling adhesives Viscosity Shelf life Solids pH Measurable Values Initial Tack Tack build-up Setting Time Time to fiber tear Working Values Ideal operating temperature Washability Condensation-water resistance Ice-water resistance All the above are properties of interest but they do not depend on the adhesive alone Free of Zn and heavy metals BOD5/COD SHE values TMDD-free Environmental and health-related considerations (e.g. their social aspect) which can be mentioned
Page 1 and 2: 9th International Label Conference
Page 3 and 4: Source: Practical Manual for Cleani
Page 5 and 6: Typical properties of labelling adh
Page 7: GREEN PERFORMANCE • For packaging
Page 11 and 12: A member of the cph group Technical
Page 13: Thanks for your attention!

Label Conference - Brigl & Bergmeister

Create successful ePaper yourself

Delete template?

Save as template?