All-in-one machine thermal master base paper

Abstract

The invention relates to a piece of paper and particularly relates to the piece of raw paper of the heat-sensitive board paper of an all-in-one machine, which is prepared by the following steps of: (1) mixing the raw materials of LPET / polyester terephthalate (PET) bicomponent polyester ultra-short fibre with low melting point, PET polyester ultra-short fibre, viscose fibre and North wood pulp according to a certain proportion and pulping; (2) adding a polyacrylamide (PAM) solution with the viscosity of 30 to 35 seconds, mixing and defibering; (3) sizing at the net part of a side wave type special fourdrinier and forming; (4) drying by the face of a first drying cylinder, then conveying to the face of a second drying cylinder, bonding and solidifying; and (5) coating a reinforcing agent after coiling paper and slitting, and finally, recoiling again so as to produce the raw paper of the heat-sensitive board paper of the all-in-one machine. The raw paper of the heat-sensitive board paper of the all-in-one machine is ecological and is friendly to the environment; and meanwhile, the raw paper of the heat-sensitive board paper of the all-in-one machine has high printing resistance, good ink permeability, high resolution, uniform chromaticity, clear image and strong hierarchical sensation.

Description

technical field [0001] The invention relates to a kind of paper, in particular to an all-in-one heat-sensitive base paper. Background technique [0002] In recent years, with the continuous development of my country's paper industry, the country's requirements for environmental protection have gradually increased, and the national awareness of environmental protection has gradually increased. The base paper of the existing heat-sensitive paper uses a large amount of plant bast fibers such as mulberry bark and bark bark, and uses the kraft method to make pulp. The quality of the bast fiber is unstable, and the quality of the base paper produced is always at a low-grade level, which is reflected in the printing resistance, poor ink permeability, low resolution, uneven color, not clear image, weak layering, and toughness. A large amount of black liquor produced by leather fibers in the pulping process is difficult to recycle and treat, and seriously pollutes water resources. I...

AI Technical Summary

Problems solved by technology

The base paper of the existing heat-sensitive paper uses a large amount of plant bast fibers such as mulberry bark and bark bark, and uses the kraft method to make pulp. The quality of the bast fiber is unstable, and the quality of the base paper produced is always at a low-grade level, which is reflected in the printing resistance, poor ink permeability, low resolution, uneven color, not clear image, weak layering, and toughness. A large amount of black liquor produced during the pulping process of leather fiber is difficult to recycle and treat, and seriously pollutes water resources. It is no longer suitable for the requirements of modern papermaking clean production technology, and has been strictly controlled or banned.

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