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Interlayer color sprayed anti-counterfeit coating white cardboard and production process thereof

A white cardboard and coating technology, which is applied in coating, paper, papermaking, etc., can solve the problems affecting the application of anti-counterfeiting packaging, achieve the effect of simple and easy identification, increase the cost of imitation, and facilitate post-processing

Inactive Publication Date: 2015-05-20
ZHUHAI S E Z HONGTA RENHENG PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of paper cannot be used for high-grade printing, which affects its application in the field of anti-counterfeiting packaging

Method used

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  • Interlayer color sprayed anti-counterfeit coating white cardboard and production process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 In the steps shown, the surface layer slurry (percentage by weight: 70% of bleached hardwood kraft pulp, 30% of bleached softwood kraft pulp), the core layer slurry (percentage by weight: 50% of bleached hardwood kraft pulp, Bleached softwood kraft pulp 10%, broken paper 40%) and bottom pulp (weight percentage: bleached hardwood kraft pulp 90%, bleached softwood kraft pulp 10%) are crushed, mixed and screened by pulper , Disc Refiner Refining, Blending, Sending to Paper Machine for Papermaking and Water Filtration; Surface Layer Slurry, Core Layer Slurry, and Bottom Layer Slurry are Compounded, and when the Surface Core Layer and Core Bottom Layer are compounded, press 10g spray lithopone per ton of paper; pressed to produce wet paper with surface layer, core layer and bottom layer, the wet paper is dried, surface sizing, steel belt calendered to obtain base paper, and then coated : Coating a pre-coat on the surface layer, coating a core coating on the...

Embodiment 2

[0026] The surface layer slurry (percentage by weight: bleached hardwood kraft pulp 90%, bleached softwood kraft pulp 10%), core layer slurry (weight percent: bleached hardwood kraft pulp 55%, bleached softwood kraft pulp Pulp 20%, broken paper 25%) and bottom pulp (weight percentage: bleached hardwood kraft pulp 70%, bleached softwood kraft pulp 30%) are crushed and mixed by pulper, screened, and disc refined Refining, blending, sending to the paper machine for papermaking and water filtration; composite the surface layer slurry, core layer slurry, and bottom layer slurry, and spray 150g of paper per ton between the surface and core layers when the surface and core layers are compounded Lead chrome yellow; wet paper with surface layer, core layer and bottom layer is produced by pressing, the wet paper industry is dried, surface sizing, and steel belt calendered to obtain base paper, and then coated: coating on the surface layer Cloth pre-coating, coating the core coating on t...

Embodiment 3

[0029] The surface layer pulp (weight percentage: bleached hardwood kraft pulp 80%, bleached softwood kraft pulp 20%), core layer pulp (weight percentage: bleached chemical thermomechanical pulp 55%, bleached softwood kraft pulp Pulp 5%, broken paper 40%) and bottom pulp (weight percentage: bleached hardwood kraft pulp 80%, bleached softwood kraft pulp 20%) are crushed, mixed, screened, and disc-refined by pulper Machine refining, mixing, sending to paper machine for papermaking and water filtration; compounding of surface layer slurry, core layer slurry and bottom layer slurry, and spraying toluidine at a rate of 100g per ton of paper between the core and bottom layers when compounding the core and bottom layers Red; press to produce wet paper with surface layer, core layer and bottom layer, the wet paper industry is dried, surface sizing, and steel belt calendered to obtain base paper, and then coated: coating pre-coated on the surface layer Coating, coating the core coating...

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Abstract

The invention discloses an interlayer color sprayed anti-counterfeit coating white cardboard. The cardboard comprises a surface layer, a core layer and a bottom layer which are overlapped sequentially, wherein colored pigment or dye is contained between the surface layer and the core layer and / or between the core layer and the bottom layer. The invention further discloses a process for producing the anti-counterfeit coating white cardboard. Compared with a surface printed anti-counterfeit technology, the anti-counterfeit coating white cardboard cannot be simply or easily counterfeited by copying or printing, and the anti-counterfeiting effect is good; compared with other embedded anti-counterfeit technology in the prior art, the anti-counterfeit coating white cardboard is subjected to interlayer color spraying in the composite layer of paper, consumers can find different colors among layers by cutting or tearing the paper, so that the anti-counterfeit effect can be achieved, the identification mode is simple and feasible, and the counterfeiting difficulty is high.

Description

technical field [0001] The invention relates to an anti-counterfeit coated white cardboard, in particular to an anti-counterfeit coated white cardboard with color spraying between layers and a production process thereof. Background technique [0002] The anti-counterfeiting of general wrapping paper has barcode anti-counterfeiting, printing anti-counterfeiting and other technologies, but with the development of various new technologies, such as high-precision scanning and printing, computer graphics processing technology, digital printing technology, etc., the original anti-counterfeiting measures are very difficult prone to failure. [0003] Starting anti-counterfeiting on the original paper base material is a measure that greatly increases the cost of imitation. The investment in the production equipment of anti-counterfeiting coated cardboard is huge, and it is difficult for counterfeiters to achieve the purpose of imitation. The common anti-counterfeiting fibers in coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/02D21H19/38D21H19/44D21H21/28D21H21/40D21F11/00
Inventor 季向东吴义荣颜凌燕张东生杨丽管鸣
Owner ZHUHAI S E Z HONGTA RENHENG PAPER
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