Identification of Quantitative and Qualitative Papermaking Parameters of OCC Pulp Fibers

• Main Authors: hamidreza roodi, yahya hamzeh
• Format: Article
• Language: fas
• Published: Iranian Scientific Association of Wood and Paper Industries 2015-11-01
• Series: Iranian Journal of Wood and Paper Industries
• Subjects: Recycled Fibers; Packaging Papers; Fiber Length; Graff ″C″; Starch
• Online Access: http://www.ijwp.ir/article_13013_318cdf497df48a2bebff0a6a937ffe90.pdf

Nowadays there is a great competition for the production of packaging paper from recycled fibers. But success in this competition depends on improving its strength properties. Thus when it comes to talk about recycled fiber, the first and most important challenge is to tailor it for pulp and papermaking. Quantitative and qualitative papermaking information of recycled papers will significantly help to achieve this objective. Therefore in current research, some of papermaking parameters such as: fiber length average and distribution, the kind and amount of pulp and also the existing quantity of starch in OCC pulp were studied. The results showed that its fibers length has uneven distribution and more than 85% of OCC fibers have the average length less than 1 millimeter in the range of 0.47-0.65mm. Undoubtedly, this uneven fiber length distribution and its low length average would decrease the strength properties of paper. Fiber staining analysis applying Graff ″C″ stain represented that main section of fibers approximately 72.91% is from kraft pulp, and mainly softwood resources (33.33%). Moreover, the amount of extracted starch was measured nearly 2.32±0.25%. It should be considered that in recycling process, this amount of starch can strongly affect the chemical charge balance in wet end section of paper machine.