noun
wood-free paper; fine paper
Paper made from chemical pulp without mechanical wood pulp, giving it high whiteness and durability. Used for books, documents, and high-quality printing.
この本は上質紙を使っているので、ページが黄ばみにくい。
This book uses wood-free paper, so the pages are less likely to yellow.
上質紙は印刷がきれいに仕上がる。
Printing comes out beautifully on fine paper.
コート紙 is coated paper with a smooth surface for glossy printing; 上質紙 is uncoated and has a natural texture.
Compound of 上質 (high quality) and 紙 (paper). The term is a modern technical classification in the paper industry.