groundwood paper

Groundwood paper is a type of paper made using mechanical or groundwood pulp. This pulp is created by grinding wood against a stone, which separates and fragments the wood fibers.1

Papers made with groundwood pulp have good opacity and bulk, making them suitable for printing. However, the fibers are shorter and bond less effectively than those in chemical wood pulp, resulting in lower strength. Groundwood papers also tend to yellow over time due to the presence of lignin and other wood components.1

Historically, newsprint was the primary use for groundwood pulp. However, improvements in pulping and bleaching processes have led to its use in a wider range of printing papers for magazines, books, and commercial printing.2