Production of reinforcement fibers for packaging papers by sodium carbonate pulping of wheat straw

In this study processes for the generation of reinforcement fibers from wheat straw with sodium carbonate are presented and the relationship between treatment conditions, yield and resulting paper strength is shown. Sodium carbonate pulping of straw allows to produce paper sheets with higher burst and compression strength than the reference made from conventional recycled pulp. By mixing the recycled pulp with up to 30 % of the wheat straw pulp, an increase in burst and compression strength of up to 30 % can be realized.