Production method of wet strong label paper

A production method and label paper technology, which is applied in papermaking, paper machine, reinforcing agent addition, etc., can solve the problems of wet-strength label paper not meeting the performance requirements, high-priced imports, etc.

Active Publication Date: 2009-02-18
MINFENG SPECIAL PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, the quality of domestically produced wet-strength label paper for beer labels does not meet the above performance requirements, and wet-strength label paper for high-end beer labels needs to be imported at high prices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] a. Base paper copying:

[0035] Beat the long fiber and short fiber, the degree of beating is 20°SR for long fiber and 50°SR for short fiber; then the proportion of long fiber:short fiber is 20:80 by weight and the wet strength agent polyamide epichlorohydrin is added 0.8% (weight) of resin and 0.5% (weight) of sizing agent alkyl ketene dimer are mixed, after removing slag, calcium carbonate is added, and the consumption is adjusted according to the ash content of paper, and high molecular polymer polymer is added. Ethyleneimine 0.01% (weight), after mixing, pass through a pressure sieve, then add 0.1% (weight) of retention aid silica gel after sieving, enter the headbox after passing through the steady flow, dehydrate through the net part, press, dry in the front section, add The surface sizing agent starch is used for surface sizing, and the sizing amount is 0.5g / m 2 , The ash content is controlled at 5% (weight), and the base paper is taken up after drying and soft ...

Embodiment 2

[0043] a. Base paper copying:

[0044] Long fiber and short fiber are beaten, beating degree is long fiber 50 ° SR, short fiber 20 ° SR; Then by weight long fiber: short fiber is the proportioning of 80:20 and adds wet strength agent melamine resin 0.3% (weight ), sizing agent alkyl ketene dimer or 0.15% (weight) of alkenyl succinic anhydride, and then add calcium carbonate after deslagging. Acrylamide 0.06% (weight), after mixing, pass through a pressure sieve, and then add retention aid bentonite 0.5% (weight), after passing through a steady flow, enter the headbox, dehydrate through the wire section, press, dry in the front section, and add to the surface The sizing agent is a mixture of starch and acrylic polymer for surface sizing, and the sizing amount is 3g / m 2 , The ash content is controlled at 10% (weight), and the base paper is taken up after drying and soft calendering in the latter stage. The ratios listed above are all relative to the total amount of pulp.

[00...

Embodiment 3

[0052] a. Base paper copying:

[0053]Beat the long fiber and short fiber, the degree of beating is 40°SR for long fiber and 30°SR for short fiber; then the proportion of long fiber:short fiber is 60:40 by weight and the wet strength agent polyamide epichlorohydrin is added 1.5% (weight) of resin and 0.05% (weight) of sizing agent alkyl ketene dimer are mixed, after removing slag, calcium carbonate is added, and the consumption is adjusted according to the ash content of paper, and high molecular polymer polymer is added. Ethyleneimine 0.1% (weight), after mixing, pass through a pressure sieve, and then add retention aid silica gel 0.01% (weight), after passing through the steady flow, it enters the headbox, dehydrates through the wire part, squeezes, front-stage drying, and adds The surface sizing agent is a mixture of starch and alkyl ketene dimer for surface sizing, and the sizing amount is 2.2g / m 2 , The ash content is controlled at 15% (weight), and the base paper is tak...

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Abstract

The invention discloses a production method for wet strength tagboards, including the processes of producing base paper, preparing dope, coating, and calendaring. The method is suitable for producing wet strength tagboards for labels on top grade beer bottles.

Description

technical field [0001] The invention relates to a production method of wet-strength label paper, in particular to a production method of wet-strength label paper which can be used as beer bottle labels. Background technique [0002] Wet strength label paper is a special coated paper coated on one side and super calendered. It is mainly used for beer labels after printing. [0003] Due to the harsh environment of beer labels and the need to consider the recycling of wine bottles, the basic requirements for wet strength label paper are: [0004] 1. It can be better adapted to offset printing, flexo printing and gravure printing, with stable paper expansion and contraction, accurate overprinting, clear writing patterns, and reliable ink absorption. [0005] 2. Easy to label and more reliable: that is, from labeling to recycling, the label should be flat and wrinkle-free. [0006] 3. It has good resistance to water penetration and cold ice. When the beer label is in a wet bott...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/38D21F11/06D21H25/12D21H21/20D21H21/16D21H21/10D21H21/18D21H21/14
Inventor 黄晓钢张顺根周明华曹淼淼戴蒨朱骏
Owner MINFENG SPECIAL PAPER
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