Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for replenishing water during the coating process of a paper coating machine

A coating machine and paper technology, applied in the process of adding pulp raw materials, paper, paper machines, etc., can solve the problems of difficulty in meeting, water loss, long distance, etc., and achieve the effect of avoiding excessive water replenishment at one time

Active Publication Date: 2022-06-21
上悦(上海)印刷有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this method of replenishing water through rollers are: 1. It can only be slightly stained with some water on the surface of the paper. The water does not penetrate into the paper in a short time, and the water only adheres to the surface of the paper; 2. Use The distance between the roller shaft for replenishing water and the gluing in the next process is relatively far, resulting in serious loss of moisture attached to the surface of the paper during high-speed operation. drop with force
It is difficult to meet the above-mentioned national standard requirements when the existing paper is replenished with water through the roller

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for replenishing water during the coating process of a paper coating machine
  • A method for replenishing water during the coating process of a paper coating machine
  • A method for replenishing water during the coating process of a paper coating machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for replenishing water in a coating machine coating process of coated paper, the method comprising the following steps:

[0031] (1) The moisture content in the original coated paper is measured by a moisture measuring instrument to be 3.5%, and the required water replenishment amount is calculated to be 2% according to the national standard reference value of 5.5%.

[0032] (2) Set the parameters of the above-mentioned roller water replenishing device (set the water replenishment amount to 2%), so that the original coated paper contacts the roller water replenishing device through the lower surface of the original coated paper before it travels to the coating head of the coating machine The roller shaft absorbs liquid water to obtain the first replenishment, and the coated paper after the first replenishment travels to the coating head of the coating machine for thermal coating;

[0033] (3) The moisture content in the coated paper after hot gluing is measured...

Embodiment 2

[0041] A method for replenishing water in a coating machine coating process of writing paper, the method comprising the following steps:

[0042] (1) The moisture content in the original writing paper is measured by a moisture measuring instrument to be 4%, and the required water replenishment amount is calculated to be 2% according to the reference value of the national standard of 6%.

[0043] (2) Set the parameters of the roller water replenishment device (set the water replenishment amount to 2%), so that the original writing paper contacts the roller shaft water replenishment device through the lower surface of the original writing paper before it travels to the coating head of the coating machine. The roller shaft absorbs the liquid water to obtain the first replenishment, and the writing paper after the first replenishment travels to the coating head of the coating machine for thermal coating;

[0044] (3) Using a moisture measuring instrument to measure the moisture co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a water replenishing method in the coating process of a paper coating machine. The water replenishing method comprises the first replenishment of water by paper absorbing liquid water before the paper reaches the coating head of the coater, and After the coating head of the cloth machine is coated, the paper absorbs water vapor for the second water replenishment. The water replenishing method of the invention can accurately replenish the paper according to the actual needs of the paper.

Description

technical field [0001] The invention relates to the field of paper production, and more particularly, to a water replenishing method in the coating process of a coating machine in paper production. Background technique [0002] The papermaking process generally includes the following main links: 1. Pulp making section: raw material selection → cooking and separating fibers → washing → bleaching → washing and screening → concentration or pulping → storage for standby; 2. Papermaking section: pulping → removal Impurities→fine pulp→beating→preparation of various additives→mixing of paper material→flowing of paper material→head box→pressing section→drying section→surface sizing→drying→calendering→rolling into paper; 3. Coating Section: coating base paper → coating machine coating → drying → coiling → rerolling → super calendering; 4. Processing section: rewinding → cutting plate (or roll) → sorting and packaging → storage end. [0003] The moisture content of paper has a great ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/30D21H25/04D21H25/06D21G7/00
CPCD21H23/30D21H25/04D21H25/06D21G7/00
Inventor 龙会伦彭卫东杨正芳
Owner 上悦(上海)印刷有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com