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Carbonless copying paper with guard wires and making method thereof

A technology of carbonless copy paper and security thread, applied in the field of papermaking, can solve the problem that anti-counterfeiting carbonless paper cannot achieve anti-counterfeiting and the like

Inactive Publication Date: 2011-09-14
莱阳银通纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of society, the advancement of science and technology, the contest between anti-counterfeiting and counterfeiting, the original watermark anti-counterfeiting and fiber silk anti-counterfeiting carbonless copy paper have appeared to imitate watermarks and anti-counterfeiting silk by printing methods, reaching the level of false ones, causing the existing anti-counterfeiting Carbonless paper cannot achieve the purpose of anti-counterfeiting

Method used

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  • Carbonless copying paper with guard wires and making method thereof
  • Carbonless copying paper with guard wires and making method thereof
  • Carbonless copying paper with guard wires and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The carbonless copy paper with safety thread in this example is composed of three papers with different structures, which are divided into carbonless upper paper (CB), middle paper (CFB), and lower paper (CF). Each original paper has a safety line An anti-counterfeit security thread 2 is embedded between the upper layer pulp fiber 1 and the lower layer pulp fiber 3 of the security thread, and the embedding method is a fully embedded security thread embedded inside the processed paper; the upper paper (CB) is processed paper coated with a coating on the back of the base paper; The middle paper (CFB) is processed paper coated on both sides of the base paper; the bottom paper (CF) is processed paper coated on the front side of the base paper.

[0042] The base paper contains the following raw materials in parts by weight: 400 parts of bleached softwood pulp, 400 parts of bleached hardwood pulp, 100 parts of talcum powder, 10 parts of rosin gum, 50 parts of aluminum sulfate,...

Embodiment 2

[0062] The difference between this embodiment and embodiment 1 is:

[0063] The carbonless copy paper with safety line is composed of 5 processed papers with different structures, which are divided into carbonless upper paper (CB), middle paper (CFB), and lower paper (CF), and each base paper has a layer of fiber on the safety line An anti-counterfeit security thread 2 is embedded between 1 and the pulp fiber 3 of the lower layer of the security thread, and the anti-counterfeit security thread 2 is embedded in a partially visible window security thread. The uppermost sheet (CB) is processed paper coated on the back of the original paper; the middle three sheets (CFB) are processed paper coated on both sides of the base paper; the bottom sheet (CF ) is processed paper coated with a coating on the front side of the base paper.

[0064] The base paper contains the following raw materials in parts by weight: 600 parts of bleached softwood pulp, 600 parts of bleached broadleaf pul...

Embodiment 3

[0068] The difference between this embodiment and embodiment 1 is:

[0069] The base paper contains the following raw materials in parts by weight: 800 parts of bleached coniferous pulp, 800 parts of bleached straw pulp, 300 parts of talcum powder, 20 parts of rosin gum, 100 parts of aluminum sulfate, 20 parts of cationic starch, 50 parts of oxidized starch, polyacrylamide 2 copies;

[0070] The microcapsule coating 5 comprises the following raw materials in parts by weight: 200 parts of melamine microcapsules, 80 parts of GG starch, 60 parts of tapioca oxidized starch, and 15 parts of styrene-butadiene latex;

[0071] The color developer coating 6 contains the following raw materials in parts by weight: 30 parts of tapioca oxidized starch, 120 parts of kaolin, 32 parts of activated clay color developer, 30 parts of styrene-butadiene latex, and 10 parts of sodium pyrophosphate;

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Abstract

The invention relates to carbonless copying paper with guard wires and a making method thereof, belonging to the technical field of paper making. The carbonless copying paper with guard wires is characterized by consisting of 3-5 pieces of converted paper with different structures, i.e. upper carbonless paper, middle carbonless paper and lower carbonless paper, wherein an anti-counterfeit guard wire is embedded in each base paper, and the topmost paper is converted paper formed by arranging a coating at the back side of base paper; each of the multiple pieces of middle paper is converted paper formed by arranging coatings at both sides of base paper; and the lowermost paper is converted paper formed by arranging a coating at the front side of base paper. The making method comprises the following steps: a, production of the base paper: 1) pulping, 2) beating and preparing, 3) forming paper, 4) squeezing and dewatering, 5) drying, 6) carrying out top sizing, and 7) calendering; and b, coating and processing: 1) preparing paint, 2) coating, 3) drying, and 4) calendering. The invention has the advantages that the base paper is provided with the guard wires for anticounterfeiting, and the guard wires are visible to the naked eyes and can be directly separated from the paper in a tearing manner, thereby achieving the purpose of no counterfeiting for printing.

Description

1. Technical field [0001] The invention relates to a carbonless copy paper with a safety thread and a manufacturing method thereof, belonging to the technical field of papermaking. 2. Background technology [0002] Carbonless copy paper has the advantages of easy to use and clean, many copy points, clear handwriting, especially suitable for computer printing, etc., and it is easy to process and neatly overprinted, so it is widely used in business forms, such as banking, taxation, telecommunications, post and telecommunications, insurance, catering Invoices, forms and documents of the industry. [0003] With the expansion of the use of carbonless paper, some bill applications require carbonless copy paper to have anti-counterfeiting functions. At present, the anti-counterfeiting technology application of domestic carbonless copy paper products is mainly watermark anti-counterfeiting carbonless paper produced by using watermark base paper and fiber anti-counterfeit carbonless...

Claims

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Application Information

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IPC IPC(8): D21H21/42D21H27/30B32B29/00
Inventor 李长增于少平刘洪照
Owner 莱阳银通纸业有限公司
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