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Title: Studies on cost reduction of barrier paper without affecting quality
Authors: Dutt, Dharm
Upadhyaya J.S.
Malik R.S.
Tyagi C.H.
Published in: Cellulose Chemistry and Technology
Abstract: Globalization has compelled the Indian pulp and paper industry to improve the product quality with cost reduction to survive in a globally competitive market, the best possible alternative for their survival being to cut down the production cost by augmenting the activities through in-house research and development. Against this background, cost reduction aspects of barrier paper used in decorative laminates were studied. Titanium dioxide filler, due to its very small particle sizes, passes between the cellulosic fibers and comes into the white water. A simple remedy to overcome this problem is to use retention aids; yet, due to the agglomeration of titanium dioxide particles, the light scattering efficiency of TiO2 decreases. Further on, in the saturation steps, the air in the voids is replaced by melamine formaldehyde, while the refractive index sharply decreases and becomes equal to the refractive index of cellulose. As a result, the sheet becomes transparent and sun-mica - a decorative laminate poses 'see through' problem. This problem may be bridged over by replacing expensive TiO2 with aluminum tri-hydroxide (ATH). ATH not only improves the TiO2 retention in the wet web. but also reduces the manufacturing cost.
Citation: Cellulose Chemistry and Technology (2003), 37(43832): 159-170
Issue Date: 2003
Keywords: Aluminium tri-hydroxyde
Barrier paper
Decorative laminates
Dioxide filler
ISSN: 5769787
Author Scopus IDs: 7005982560
Author Affiliations: Dutt, D., Inst. Paper Technol., Saharanpur - 247 001, India
Upadhyaya, J.S., Inst. Paper Technol., Saharanpur - 247 001, India
Malik, R.S., Inst. Paper Technol., Saharanpur - 247 001, India
Tyagi, C.H., Inst. Paper Technol., Saharanpur - 247 001, India
Corresponding Author: Dutt, D.; Inst. Paper Technol., Saharanpur - 247 001, India
Appears in Collections:Journal Publications [PT]

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