The reason is that the rough side of edge paper will penetrate ink more easily, and the smooth ink penetration effect will be far less than that of the rough side. In addition, when writing, there is a feeling of struggle between paper and pen, especially when lifting and pressing. In other words, the friction between the rough side and the brush is greater, and it is easier to reflect the pen power.
Most book lovers choose the rough side of paper. The rough side may indeed be more suitable for writing, or closer to the state that the ancients used wool paper, so we use the rough side here.
Extended data edge paper is a kind of light yellow paper made of bamboo fiber. It should be noted that it must be made of bamboo fiber. According to historical records, "the bamboo paper produced in Jiangxi in the late Ming Dynasty is delicate, thin and soft, light yellow, water-resistant and good in water absorption. Suitable for writing and printing ancient books. " Because Jin Mao, a great book collector in Ming Dynasty, loved books and printed books on bamboo paper, he once went to Jiangxi to order a large number of slightly thick bamboo paper and stamped the edge of the paper with the word "Mao", so people used to call this paper wool-edged paper, which is still in use today.
Then, it is very important to talk about the classification of edge paper. Edge paper is mainly divided into manual edge paper and machine-made edge paper. The reason why hand-made edge paper is written in front is that there is pure hand-made edge paper first, and then with the development of industrial technology, there is machine-made edge paper.