What is the difference between kraft paper and normal paper?
Kraft paper adopts sulphate method of pulping (Kraft Process), with coniferous wood pulp as the main raw material, the fibre length up to 2-3 mm, lignin retention is more, so the texture is tough and tear-resistant. Unbleached kraft paper has a natural brownish-yellow colour, i.e. ‘brown kraft paper’, while bleached kraft paper is ‘white kraft paper’, and both types of kraft paper have high strength.
続きを読む
