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Tipping base water manufacturing method applicable to environment-friendly ink satellite flexographic printing technology

A tipping paper base paper and flexographic printing technology, which is applied in the pulp beating method, paper, papermaking, etc., can solve the problems that the unit type flexo printing machine cannot meet the requirements, the printing efficiency is reduced, and it is difficult to align the plate.

Active Publication Date: 2020-01-14
MUDANJIANG HENGFENG PAPER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The packaging industry is mostly based on unit-type flexo printing machines, but with the market's requirements for production speed, customers' requirements for printing accuracy, and the country's higher and higher requirements for environmental protection, unit-type flexo printing machines can no longer meet the requirements
The main problem is that the substrate between two adjacent colors is driven by the printing plate, and it is difficult to align the substrate when printing plastic and film with high elasticity and deformation; the tension between colors is not easy to control, once the tension changes If it is too large, the paper and film will break, and the fabric will produce weft arcs. In order to avoid aggravating these problems, the production speed has to be reduced, and the printing efficiency will decrease accordingly.
[0007] Flexographic ink is the only non-toxic ink approved by the American Food and Drug Association among all printing methods. It is mainly made of water-soluble resin, pigment, solvent and related additives through compound grinding. The viscosity is relatively low. If the number of lines is too low, the amount of ink supply is too large, and the edge of the printing plate is easy to accumulate ink, which will cause ghosting on the edge of the printed product; Base paper should have good ink acceptance and certain water penetration resistance

Method used

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  • Tipping base water manufacturing method applicable to environment-friendly ink satellite flexographic printing technology
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  • Tipping base water manufacturing method applicable to environment-friendly ink satellite flexographic printing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] In this example, the printing surface is coated with 5% concentration of oxidized tapioca starch (LS-2) and 6kg / ton paper Clariant surface sizing agent, and the non-printing surface is coated with 5% concentration of oxidized tapioca starch (LS-2) and 2kg / ton of paper water repellent 586 process, to produce base paper for tipping paper that meets the environment-friendly ink satellite flexographic printing process. The specific production steps are as follows:

[0070] A method for manufacturing base paper for tipping paper suitable for environmental protection ink satellite flexographic printing technology, comprising the following steps:

[0071]a. Beating process: Two pulps, bleached long-fiber coniferous wood pulp and bleached short-fiber eucalyptus pulp are used; double disc mills are used for continuous beating. 66°SR, wet weight 5g-6g; bleached short-fiber eucalyptus pulp with a beating concentration of 4.5% and a beating degree of 64°SR-70°SR, bleached long-fibe...

Embodiment 2

[0085] In this example, 6% concentration of oxidized tapioca starch (LS-2), 3kg / ton of paper water repellent 586, and 3kg / ton of paper Clariant surface sizing agent are used to coat the printing surface, and 5% concentration is applied to the non-printing surface The oxidized tapioca starch (LS-2) and 2 kg / ton paper Clariant surface sizing agent are used to produce tipping base paper that meets the environmental ink satellite flexographic printing process. The specific production steps are as follows:

[0086] a. Beating process: Two pulps, bleached long-fiber coniferous wood pulp and bleached short-fiber eucalyptus pulp are used; double disc mills are used for continuous beating. 66°SR, wet weight 5g-6g; bleached short-fiber eucalyptus pulp with a beating concentration of 4.5% and a beating degree of 64°SR-70°SR, bleached long-fiber softwood pulp and bleached short-fiber eucalyptus pulp , according to the mass ratio of 45% to 50%: 50% to 55% of the pulp, the net pulp percussi...

Embodiment 3

[0093] In this example, the printing surface is coated with 6% polyvinyl alcohol (PVA08-99), 6kg / ton paper printing agent (SYJ-II), and the non-printing surface is coated with 5% oxidized tapioca starch (LS- 2) Using 2 kg / ton paper Clariant surface sizing agent to produce base paper for tipping paper that meets the environment-friendly ink satellite flexographic printing process. The specific production steps are as follows:

[0094] a. Beating process: Two pulps, bleached long-fiber coniferous wood pulp and bleached short-fiber eucalyptus pulp are used; double disc mills are used for continuous beating. 66°SR, wet weight 5g-6g; bleached short-fiber eucalyptus pulp with a beating concentration of 4.5% and a beating degree of 64°SR-70°SR, bleached long-fiber softwood pulp and bleached short-fiber eucalyptus pulp , according to the mass ratio of 45% to 50%: 50% to 55% of the pulp, the net pulp percussion degree of 66 ° SR ~ 68 ° SR, wet weight 4.5g ~ 5.0g.

[0095] b. Auxiliary...

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Abstract

The invention discloses a tipping base water manufacturing method applicable to an environment-friendly ink satellite flexographic printing technology. The method comprises the following steps: a, implementing a pulping process, namely performing continuous pulping on two types of pulp of bleached long fiber coniferous pulp and bleached short fiber eucalyptus pulp by using a double-disc attritionmill, pulping the bleached long fiber coniferous pulp and the bleached short fiber eucalyptus pulp, and blending the pulp according to a mass ratio of (45-50%):(50-55%), wherein the pulping concentration of the bleached long fiber coniferous pulp is 4.5%, the knocking degree is 60-66 degree SR, the wet weight is 5-6g, the pulping concentration of the bleached short fiber eucalyptus pulp is 4.5%, the knocking degree is 64-70 degree SR, the knocking degree of pulp fed to a screen is 66-68 degree SR, and the wet weight is 4.5-5.0g; and b, implementing an auxiliary material adding process, namelycontinuously adding 200kg / ton paper calcium carbonate, a 100kg / ton paper 325-mesh talc powder auxiliary material and 50kg / ton paper pharmaceutical grade titanium dioxide to the mixed pulp.

Description

technical field [0001] The invention relates to the technical field of tobacco paper, in particular to a method for manufacturing base paper for tipping paper suitable for environmental-friendly ink satellite flexographic printing technology. Background technique [0002] Flexographic printing uses a flexible printing plate. During printing, the anilox roller evenly coats a certain thickness of environmentally friendly water-based ink layer on the raised graphic part of the printing plate, and then under the action of the impression cylinder, the environmental protection ink layer of the graphic part is Water-based inks are transferred to the surface of the substrate to form clear graphics. Flexographic printing machines are divided into three types according to the different arrangement methods: stack type, satellite type and unit type. [0003] According to the forecast of the American Flexographic Technology Association (FTA), in the future, as the flexible packaging ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/02D21G1/00D21H17/28D21H17/36D21H17/52D21H17/56D21H17/67D21H21/16
CPCD21D1/02D21G1/00D21H17/28D21H17/36D21H17/52D21H17/56D21H17/675D21H21/16
Inventor 潘高峰翟继岚都业壮刘玲红邱诗波
Owner MUDANJIANG HENGFENG PAPER CO LTD