Lime is traditionally used to reconstitute caustic soda from the sodium carbonate left over from the pulp-making process.

NikiLime also supplies high-purity lime for the fabrication of PCC (Precipitated Calcium Carbonate) which is manufactured via a series of controlled chemical reactions. Quicklime is usually mixed with water to form a slurry to which carbon dioxide is added. The resulting reaction produces a very fine precipitated calcium carbonate (CaCO₃). This filler is used in paper production to enhance the paper's whiteness, opacity and texture.

Lime is also used as a reagent to soften process water in paper factories.