Kraft Paper

Kraft paper is produced from softwood trees resistant to high moisture, such as pine, fir, spruce with longer fiber by processing with sulfate or alkaline.

Kraft means strong in German. Kraft papers are usually produced in dark, ie. natural color. They have high tensile strength and elasticity. Their strength indicator
explosion values vary between 3.5-5 kPa and their weight vary between 110-140 g/m².