Objective The goal of YELLOW is to study the processes occurring in heat-induced discolouration of chlorine free bleached pulps.It is intended to work out the relationships between the conditions under which pulps where bleached and their tendency to discolour during drying at high temperatures.It is based on the analysis of the spectroscopic properties and structural changes of cellulose and residual lignin, e.g. the formation of functional groups and chromophores or changes in the degree of polymerization, corresponding to the process conditions.The final achievement of YELLOW is to create effective countermeasures which will prevent or inhibit to said discolouration.Otherwise, heat-induced yellowing which is a pronounced problem of the new bleaching technologies will become a serious obstacle to the introduction ofenvironmental-friendly chlorine free bleaching in the European pulp and paper enterprises at least, a large quality loss had to be accepted.In this way YELLOW will enhance functional properties of papers made of such pulps as well as promote the application of chlorine free bleaching technologies on an European scale. Fields of science natural scienceschemical sciencesinorganic chemistryhalogens Programme(s) FP4-FAIR - Specific research, technological development and demonstration programme in the field of agriculture and fisheries (including agro-industry, food technologies, forestry, aquaculture and rural development), 1994-1998 Topic(s) 1.3.3 - Pulp and paper Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator DRESDEN UNIVERSITY OF TECHNOLOGY Address Pienner strasse, 21 - 23 01737 Tharandt Germany See on map EU contribution € 0,00 Participants (3) Sort alphabetically Sort by EU Contribution Expand all Collapse all CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS, CARTONS ET CELLULOSES France EU contribution € 0,00 Address Domaine universitaire - b.p. 251 38044 Grenoble See on map METSÄ-SERLA CHEMICALS OY Finland EU contribution € 0,00 Address Kaskinen hill 64260 Kaskinen See on map THE FINNISH PULP AND PAPER RESEARCH INSTITUTE Finland EU contribution € 0,00 Address P.o. box 70 02151 Espoo See on map
