Process for making high quantitative watermark anti-forge paper

A production method and technology of anti-counterfeit paper, which is applied in papermaking, paper machine, paper machine wet end, etc., can solve the problems of complicated process, low anti-counterfeiting performance, and difficult light-transmitting observation, etc., and achieve good light-transmitting observation and anti-counterfeiting performance high effect

Active Publication Date: 2006-06-28
CHINA BANKNOTE PRINTING & MINTING
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Watermark is one of the main anti-counterfeiting means used in circulation banknotes in most countries today. The production of watermark paper has the characteristics of high technical difficulty, strong professionalism and complicated process. At present, in the industry, the mainstream quantitative of watermark paper is 80 ~90g/m 2 In between, it is far from meeting the needs of various forms of products, an...

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
  • Process for making high quantitative watermark anti-forge paper
  • Process for making high quantitative watermark anti-forge paper
  • Process for making high quantitative watermark anti-forge paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: as figure 1 As shown, the production steps of the present invention are according to the processes of watermark design, engraving plate making, net making, pulp preparation, papermaking, etc., wherein, when designing the watermark, the height of the watermark plate is designed to be 1.0mm, and the slope is 5°, and then the watermark is designed by The computer converts the designed watermark scheme into a machine language that the engraving machine can recognize to control the cutting of the engraving machine. image 3 As shown in the spherical knife, the cone angle of the spherical knife is 20°, and the spherical knife is carved according to the height and slope scheme of the watermark design, such as figure 2 As shown in the watermark template, the height of the watermark template is 1.0mm, and the slope is 5°. Use this template to press the watermark area on the copper grid, then prepare the pulp, and put the pulp into the pulp tank for papermaking. Du...

Embodiment 2

[0015] Embodiment 2: operate according to the steps of embodiment 1, wherein, the height-1.0mm of design watermark template during watermark design, slope is 15 °, use as image 3 A spherical knife with a cone angle of 30° as shown engraves figure 2 As shown in the watermark template, the height of the watermark template is -1.0mm, and the slope is 15°. Use this template to press the watermark area on the copper wire, then prepare the pulp, and put the pulp into the pulp tank for papermaking. During the papermaking process When drying, control the running speed of the production line at 35 m / min, so as to facilitate the dehydration and drying of high-weight watermark paper, and the watermark anti-counterfeiting paper produced is 150g / m 2 .

Embodiment 3

[0016] Embodiment 3: operate according to the steps of embodiment 1, wherein, the height-2.5mm of design watermark stencil when printing design, slope is 20 °, use such as image 3 A spherical knife with a taper angle of 45° as shown engraves figure 2 As shown in the watermark template, the height of the watermark template is -2.5mm, and the slope is 20°. Use this template to press the watermark area on the copper wire, then prepare the pulp, and put the pulp into the pulp tank for papermaking. During the papermaking process When drying, control the running speed of the production line at 28 m / min, so as to facilitate the dehydration and drying of high-weight watermark paper, and the watermark anti-counterfeiting paper produced is 220g / m 2 .

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

PropertyMeasurementUnit
Heightaaaaaaaaaa
Cone angleaaaaaaaaaa
Cone angleaaaaaaaaaa
Login to view more

Abstract

The invention discloses a watermark forge-preventing paper manufacturing method, especially for high weight watermark forge-preventing paper. It is aimed at the current technique to produce watermark paper with high weight and good light permeability and forge-preventing. The method includes the following steps: watermark designing; carving watermark stencil plate; making web; preparing paper pulp; manufacturing paper. The height of the watermark plate is between 1.0mm to -2.5mm. And its grade is between 5 to 20 degrees. The caving is the same. This method can make out non composite high weight watermark forge-preventing paper with good light permeability and forge-preventing and 120-220g/m2 weight.

Description

technical field [0001] The invention relates to a method for making watermark anti-counterfeit paper, in particular to a method for making high-quantity watermark anti-counterfeit paper. Background technique [0002] Watermark is one of the main anti-counterfeiting means used in circulation banknotes in most countries today. The production of watermark paper has the characteristics of high technical difficulty, strong professionalism and complicated process. At present, in the industry, the mainstream quantitative of watermark paper is 80 ~90g / m 2 In between, it is far from meeting the needs of various forms of products, and the so-called high-weight watermark paper on the market is produced by compounding low-weight watermark paper and thin cardboard, which is not easy to observe through light, and the anti-counterfeiting performance is not high. The production quantity is 120~220g / m 2 Among the high quantitative watermark anti-counterfeiting paper, there are difficulties...

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
IPC IPC(8): D21F1/44D21G5/00
Inventor 骆富文李挺陆蕾蔡辉黄纯
Owner CHINA BANKNOTE PRINTING & MINTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap