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Magazine articles
Effects of orders of addition in nanocellulose•cationic starch• colloidal silica systems for papermaking, TAPPI Journal October 2022
ABSTRACT: Two orders of addition were compared when preparing paper handsheets from recycled copy paper furnish in combination with nanofibrillated cellulose (NFC), cationic starch, colloidal silica, and cationic retention aid (cPAM; cationic polyacrylamide). Faster dewatering and higher fine-particle retention were obtained at equal optimized dosages of additives when the colloidal silica was added last, after addition of the cPAM. The same order of addition also provided a higher gain in the paper’s tensile strength. However, higher paper stiffness was achieved when the colloidal silica was instead added to the NFC, after its pretreatment with cationic starch. Results were consistent with the principle that papermaking additives added shortly before sheetforming tend to have the largest effects on drainage and retention. The results also demonstrated a sensitivity to the relative dosages of positively and negatively charged additives.
Magazine articles
China paper technical program and exhibit came of age in 1995, TAPPI JOURNAL, March 1996, Vol. 79(3)
China paper technical program and exhibit came of age in 1995, TAPPI JOURNAL, March 1996, Vol. 79(3)
Magazine articles
1995 Finishing and Converting Conference: Taking advantage of changing trends, TAPPI JOURNAL, March 1996, Vol. 79(3)
1995 Finishing and Converting Conference: Taking advantage of changing trends, TAPPI JOURNAL, March 1996, Vol. 79(3)
Magazine articles
Nonwood fibers mark the road to gold for jow atchison, TAPPI JOURNAL, March 1996, Vol. 79(3)
Nonwood fibers mark the road to gold for jow atchison, TAPPI JOURNAL, March 1996, Vol. 79(3)
Magazine articles
Inside ctapi, TAPPI JOURNAL, May 1996, Vol. 79(5)
Inside ctapi, TAPPI JOURNAL, May 1996, Vol. 79(5)
Magazine articles
Suzhou papyrus paper readies 100,000 ton coated fine paper mill, TAPPI JOURNAL, May 1996, Vol. 79(5)
Suzhou papyrus paper readies 100,000 ton coated fine paper mill, TAPPI JOURNAL, May 1996, Vol. 79(5)
Magazine articles
Cedar river's linerboard machine inaugurated, TAPPI JOURNAL, November 1996, Vol. 79(11)
Cedar river's linerboard machine inaugurated, TAPPI JOURNAL, November 1996, Vol. 79(11)
Magazine articles
Building a team: the cedar river project, TAPPI JOURNAL, November 1996, Vol. 79(11)
Building a team: the cedar river project, TAPPI JOURNAL, November 1996, Vol. 79(11)
Magazine articles
The effect of h2o on acidic sulfate corrosion in kraft recovery boilers, TAPPI JOURNAL, November 1996, Vol. 79(11)
The effect of h2o on acidic sulfate corrosion in kraft recovery boilers, TAPPI JOURNAL, November 1996, Vol. 79(11)
Magazine articles
The role of the production manager, TAPPI JOURNAL, November 1996, Vol. 79(11)
The role of the production manager, TAPPI JOURNAL, November 1996, Vol. 79(11)