Abstract
This research work deals with modification of the color of paper in commercial clupak dynamic image registration. According to the standard technology of production of kraft pulp, from which the production clupak paper, the paper obtained is dark brown in color. Market demand is based on quality and price of the product. Step further in these demands is demand for certain balanced and brighter shade of color of sack kraft paper. Lately it is demanded from our company to produce sack kraft paper with lighter shade of color. This problem can be solved in two ways: by coloring pulp fiber and by bleaching it. Methods of production of sack kraft paper with lighter shade, as well as results achieved, will be presented in this document.
Highlights
The production of clupak paper is a very complex process
Analyzing the color shades of paper obtained by coloring different types of colors, we found that none of the obtained paper shades were what customers expect, and it was necessary to access the bleaching test of cellulose fibers. 4.3
After analyzing the relation between Kappa number of the cellulose fiber and clupak paper shade, we can conclude that a higher Kappa number causes a darker produced clupak paper, 2
Summary
The production of clupak paper is a very complex process. To produce this paper many conditions must be met, from wood selection, chip preparation, cellulose production with a certain kappa number, to preparation and fiber treatment, all in order to produce paper of a certain shade[1,2,3,4].One of the most important steps in high porosity clupak paper production is the cellulose fiber treatment. The production of clupak paper is a very complex process. To produce this paper many conditions must be met, from wood selection, chip preparation, cellulose production with a certain kappa number, to preparation and fiber treatment, all in order to produce paper of a certain shade[1,2,3,4]. One of the most important steps in high porosity clupak paper production is the cellulose fiber treatment. Fir. FIBER LENGTH [mm] FIBER WIDTH [mm] 2.
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