Manufacturing method of Pinfeng base paper

Abstract

The invention discloses a manufacturing method of Pinfeng base paper. The method comprises the following processing steps: pulping and preparing softwood pulp and hardwood pulp respectively; adding auxiliary materials; making wet paper sheets; carrying out pre-drying and surface sizing treatment; and carrying out post-drying, calendaring and finishing. Through research on slurry selection, slurry proportioning, a beating technology, a functional chemical additive added to the slurry and a digital printing assistant, measures of calendaring and the like are carried out by film-transfer surface sizing treatment by soft calendaring equipment; and the qualified Pinfeng base paper is manufactured by referring to related paper machine parameters. Compared with ordinary logistics label middle paper, the Pinfeng base paper has the advantages of low gram weight, high tensile strength, good internal bonding strength, high smoothness, low hygroscopic property, good surface strength, good digital printing effect, fine paper surface and good hand feeling, and is capable of completely replacing the ordinary logistics label middle paper and reducing the production cost for customers.

Description

technical field [0001] The invention relates to a method for manufacturing Pinfeng raw paper. Pinfeng raw paper is a newly developed middle paper for logistics labels and belongs to the technical field of papermaking. Background technique [0002] With the rapid development of e-commerce companies and third-party logistics distribution companies serving e-commerce, it also drives the rapid development of the label paper industry. At present, the fastest growth rate in the label paper industry is the three-layer express label and logistics label, increasing at a rate of 60%. The so-called three-layer express label and logistics label, also known as three-layer self-adhesive face sheet and e-commerce face sheet, are new self-adhesive face sheets, which are composed of three layers of top paper, middle paper and bottom paper. The surface material (or coated paper surface material, carbonless paper surface material, etc.) and the paper (or film and other paper) in the logistics...

AI Technical Summary

Problems solved by technology

[0003] The current status of the paper used in domestic logistics labels is that the varieties are relatively miscellaneous, mainly all wood pulp paper products, and some products containing DIP pulp and straw pulp; these products are not high in technology content, and the product grade is low, mainly as follows Several quality problems: ①The quality of digital printing is not high (large ink consumption, unclear patterns and text), the ink is not fixed firmly, and the drying speed is slow; It is easy to be torn during normal use; ③The rough surface of the paper has low strength and poor flatness, and the cost of applying isolation oil or PVA after printing is high; ④The quantity of ordinary products is too large, the cost of making a single label is relatively high, and the cost of logistics and transportation is high.