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Wet-end StarcheS world pulppaper52 In woodfree uncoated papers machine trial results showed similar strength characteristics and constant sizing efficiency the higher the better customers have identified a lower starch consumption better ash retention as well as first pass retention combined with similar paper strength. IncreaSIng the deWaterIng tIme Increasing the dewatering time at higher addition rates is a common effect of starches in the paper making process. But an increased starch dosage might be necessary to compensate strength while optimisation of furnish compositions or filler increase. CLiBond wet-end starch has significant benefits with regard to dewatering behaviour. The dewatering time of CLiBond wet-end starch at 1 addition is close to a cationic potato starch at 0.6 addition. Since most of the paper mills which successfully utilise ASA are using cationic starch as emulsifying agent the manufacturers of ASA are giving explicit advice on cationic starch suitability. Thus CLiBond wet- end starch was tested and approved for ASA emulsification by the main suppliers in the market. caSe StUdIeS Typically potato based cationic wet- end starches are used in heavy duty applications meaning highly filled or hard sized papers or papers being produced on high speed machines e.g. LWC SC newsprint because in most cases so far they outperform traditional cationic cereal starches of the same cationicity. Woodfree paper In woodfree uncoated papers machine trial results showed similar strength characteristics and constant sizing efficiency. Wet-end starch addition was 5kgt and the ASA amount maintained at a dosage level of 1.4-1.5kgt. Additionally it was observed that both total and filler retention were improved and thus it was possible to decrease the amount of retention aid from 550 to 400gt. After a trial period of 6 weeks the machine was switched from cationic potato D.S. 0.042 to CLiBond wet-end starch.