Method for manufacturing body paper special for lotteries

A manufacturing method and technology of base paper, applied in papermaking, paper coating, paper machine, etc., can solve the problems of unsatisfactory drying speed of ink on the non-coating surface, high price of three-proof heat-sensitive base paper, and high consumption of coating paint, etc. Achieve the effect of promoting steady development, high internal bonding strength and good smoothness

Inactive Publication Date: 2017-06-27
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses different treatments such as selecting specific factors like pulp size or adding chemical agents during production processes to improve the quality of regular banknotes made from specialty materials called bases. These treated papers have strong bonds between them that are easy to use with customers' needs while still being effective at producing their own tickets.

Problems solved by technology

This patents discusses how strong demand exists over various qualities such as low costs or superior printability that are required by certain government regulations related to lotteries. These demands include ensuring smooth operation without sacrificially affecting any other areas within their scope while maintaining competitiveness against traditional methods like roller machines. Additionally, there may be environmental concerns associated with disposal of waste toners used when applying coatings onto lottery ticket papers due to safety issues involved. Therefore, this patented proposes developing an improved version of 3- proof thermal sensitive base paper called Lotus Hot Paper®(SPC) that can achieve better results compared to existing versions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The bleached kraft softwood pulp and the bleached kraft hardwood pulp are respectively beaten with medium consistency, the beating concentration is 8%, and the beating degree of softwood is 65~70. 0 SR, hardwood beating degree 55~60 0 SR, the two kinds of pulp are mixed according to the ratio of 30%:70%, and the beating degree of the mixed pulp is 60~65 0 SR, add 210kg / ton of calcium carbonate filler, 20kg / ton of AKD sizing agent, 15kg / ton of pulp cationic starch, 0.28kg / ton of paper retention and drainage aid CPAM, etc. The slurry is online, the online concentration: 0.25%, the online pH value: 6.5~8.5, and the paper weight is 65±1g / m 2 , the net speed is 800m / min, the headbox lip opening is 11.5mm; double-sided dehydration is carried out by stacking the net to ensure that the fibers are evenly dispersed, and the vertical and horizontal fibers are arranged in an orderly and uniform distribution. The wet paper sheet enters the press section for compound pressing. Crim...

Embodiment 2

[0020] The bleached kraft softwood pulp and the bleached kraft hardwood pulp are respectively beaten with medium consistency, the beating concentration is 8.5%, and the beating degree of softwood is 60~65. 0 SR, hardwood beating degree 55~60 0 SR, the two kinds of pulp are mixed according to the ratio of 40%:60%, and the beating degree of the mixed pulp is 55~62 0 SR, adding 205kg / ton of calcium carbonate filler, 18kg / ton of AKD sizing agent, 14kg / ton of pulp cationic starch, 0.30kg / ton of paper retention and drainage aid CPAM, etc., prepared to dilute The slurry is online, the online concentration: 0.30%, the online pH value: 6.5~8.5, and the paper weight is 65±1g / m 2 , the net speed is 810m / min, the headbox lip opening is 11.7mm; double-sided dehydration is carried out by stacking the net to ensure that the fibers are evenly dispersed, and the vertical and horizontal fibers are arranged in an orderly and uniform distribution. Crimping pressure: 920~930kN / m, second creasing...

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Abstract

The invention discloses a method for manufacturing body paper special for lotteries. According to the method, bleached sulfate softwood pulp and bleached sulfate hardwood pulp are used as raw materials, through process steps of respective pulping, pulp mixing, auxiliary material adding, wet paper page manufacturing with pulp, pressing dewatering, pre-drying, surface sizing and after-drying and calendering finishing and the like, the body paper special for the lotteries, which is high in strength, good in smoothness, small in water absorptivity and high in internal bonding strength, is prepared, clients' requirements of coating and processing lottery paper can be met, and the qualified lottery paper is manufactured.

Description

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Claims

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Application Information

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Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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