Papermaking technology and paper

Abstract

A papermaking technology comprises the following steps that plant fiber pulp is subjected to filtering separation for separating out fiber fines in the plant fiber pulp; the fiber pulp after the fiber fines are separated is subjected to papermaking to form a wet paper web comprising at least one fiber layer; and the fiber fines are added to at least one external surface of the wet paper web. The invention further provides paper made by applying the technology. According to the papermaking technology and the paper, the fiber fines are added to the surface of the paper made by the fiber pulp, so that the strength of the paper is improved, hair slip and power slip are reduced, and the surface smoothness and the absorption capacity of the paper are improved. In addition, the fiber fines in the plant fiber pulp are utilized reasonably, so that adverse effects of the fiber fines in the plant fiber pulp on pulping and papermaking production processes and effects on the performance of the finished paper are avoided.

Description

technical field [0001] The invention relates to a papermaking process and paper produced by using the papermaking process. Background technique [0002] The existing raw materials for making paper are mainly plant fiber raw materials, such as wood fiber, rice straw fiber, bamboo fiber, hemp fiber, etc. The above-mentioned plant fiber raw materials are processed by various pulping processes such as mechanical method, chemical method or a combination of mechanical and chemical methods. In the pulping section, the pulp will go through various treatment processes, such as impurity removal, cleaning, bleaching, refining, etc. The pulp processed by the pulping section is processed into paper through papermaking processes such as pulp preparation, online forming, pressing, dehydration, and drying. [0003] The plant fiber pulp processed by the pulping section and used to make paper usually contains fine fibers, and it is generally considered that the particles passing through the ...

AI Technical Summary

Problems solved by technology

However, the existence of fine fibers in the pulp also has some negative effects on the paper production process. For example, the fine fibers are easily lost to the white water in the pulping and papermaking process, which is difficult to recycle, resulting in the waste of fiber raw materials, as well as water treatment and recycling. It causes a certain degree of trouble; the fine fibers in the slurry are easy to block the net blanket in the papermaking process, resulting in poor dehydration and increased cleaning frequency of the net blanket; the hydrogen bonding force between the fine fibers and between the fibers is weak Low, the existence of fine fibers also affects the strength performance of the paper to a certain extent, making the paper strength low, prone to lint and powder loss, and at the same time causing excessive dust generated in the paper production process, etc.