Method of producing wet curtain paper

Abstract

A method to produce wet curtain paper which is made of masson pine, fir, broad-leaved wood sulfate pulp, matched paper-making wet strength agent and puffed agent. The mixture ratio of various slurries is 70-100% masson pine, 0-15% fir, 0-30% broad-leaved wood, 0.4-0.5% wet strength agent and 0-0.2% puffed agent. The conditions of producing technology are: slurry Kappa number: 42-58, degree of beating: 18-21 SR, upper gauze thickness: 0.3-0.5%, upper gauze pH: 6.5-8.5, pressure of press part: first pressure: 0.2-0.3MPa, second pressure: 0.1-0.4MPa and third pressure: 0.1- 0.4MPa. The invention aims at providing a method to produce wet curtain paper as key components of device for wet curtain temperature-control and damping-control.

Description

technical field [0001] The invention relates to a method for producing paper, in particular to a method for producing wet pad paper. The wet pad paper is mainly used in the manufacture of wet pads, which are key components of temperature-regulating and humidity-regulating equipment. Background technique [0002] The wet curtain fan temperature and humidity control equipment replaces the traditional air conditioning cooling equipment, which has the advantages of energy saving, environmental protection, economy and practicality. Its key component is the wet curtain. The material for making the wet curtain requires large evaporation specific surface area, strong water absorption, high cooling efficiency, small resistance loss, not brittle when dry, high strength when wet, less surface burrs, not easy to stick to dirt, and convenient Cleaning, long service life, low cost, no pollution to the environment, etc., to ensure the normal production and product quality of the wet curtai...

AI Technical Summary

Problems solved by technology

The wet curtain paper is generally produced with all coniferous wood pulp, the product cost is high, the water absorption is poor, and a relatively high amount of chemicals needs to be added for production

The wet curtain paper in the domestic market is mainly produced by European and American companies, which have disadvantages such as high price, complicated paper sources, uneven quality indicators, and poor supply guarantee, which affect the stability of the wet curtain quality and production costs.