T-cell epitope mapping by flow cytometry

Various pulp stocks which are to be used in the formation of various layers of multilayered paperboard are prepared by sequential passage of each stock through a single pulping system which includes a pulper, a liquid cyclone, a centrisorter, and pulp thickeners, prior to storage in separate storage tanks. Stocks from the different tanks can be withdrawn and blended in multiple blend chests (with appropriate additive chemicals also being added to the blend chests) for passage to separate stock drop chests and formation points on the paperboard machine.