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Micro stretchable printing decorative base paper and preparation method thereof

A technology for decorating base paper and flexibility, applied in the field of papermaking, can solve the problem of large horizontal expansion and contraction rate, and achieve the effects of small vertical and horizontal changes, small horizontal width changes, and clear patterns

Active Publication Date: 2016-07-06
ZIBO OU MU SPECIAL PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the transverse moisture expansion rate (1270-1250) / 1250*100 = 1.6% and so on. After impregnation, the length of the paper strip becomes 1285mm, and the transverse moisture expansion rate is 2.8%. Generally speaking, the transverse expansion and contraction of domestic decorative base paper is currently The rate is too large

Method used

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  • Micro stretchable printing decorative base paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Put bleached cotton pulp, bleached coniferous pulp and bleached hardwood pulp into the pulper equipped with pulping water at 35°C according to the mass percentages in Table 1, and fully disintegrate, and control the degree of knocking to 23 and 23 respectively. , 26 ° SR, and the mass concentration reaches 4%, and the mass concentration is pumped into the pulp pool after grinding for standby; the mass concentration of the bleached cotton pulp, bleached softwood pulp and bleached broadleaf pulp used is all 90%;

[0030] (2) Dilute the mineral filler titanium dioxide, kaolin and talcum powder to a mass concentration of 65%, fully stir it with a high-speed mixer, and then put it into the filling pool;

[0031] (3) Pump the slurry from the milled pulp tank into the filling tank, adjust the pH value of the slurry in the filling tank to 7, stir evenly and then add a wet strength agent with a concentration of 12.5%;

[0032] (4) Then, the prepared slurry is diluted again, ...

Embodiment 2

[0036] (1) Put bleached cotton pulp, bleached coniferous pulp and bleached hardwood pulp into the pulper equipped with pulping water at 38°C according to the mass percentages in Table 1, and fully crush them, and control the knocking degree to 20 and 23 respectively. , 26 ° SR, and the mass concentration reaches 4%, and the mass concentration is pumped into the pulp pool after grinding for standby; the mass concentration of the bleached cotton pulp, bleached softwood pulp and bleached broadleaf pulp used is all 90%;

[0037] (2) Dilute the mineral filler titanium dioxide to a mass concentration of 70%, fully stir it with a high-speed stirrer and then put it into the filling pool;

[0038] (3) Pump the slurry from the milled pulp tank into the filling tank, adjust the pH value of the slurry in the filling tank to 6.8, stir evenly, and then add a wet strength agent with a concentration of 12.5%;

[0039] (4) Then, the prepared slurry is diluted again, and impurities are screened...

Embodiment 3

[0043] (1) Put bleached cotton pulp, bleached coniferous pulp and bleached hardwood pulp into the pulper equipped with pulping water at 38°C according to the mass percentages in Table 1, and fully disintegrate, and control the degree of knocking to 22 and 21 respectively. , 25 ° SR, and the mass concentration reaches 3.5%, and the mass concentration is pumped into the milled pulp tank for standby; the mass concentration of the used bleached cotton pulp, bleached softwood pulp and bleached hardwood pulp is all 90%;

[0044] (2) Dilute the mineral filler titanium dioxide and bentonite to a mass concentration of 70%, fully stir them evenly with a high-speed mixer, and then put them into the filling pool;

[0045] (3) Pump the slurry from the milled pulp tank into the filling tank, adjust the pH value of the slurry in the filling tank to 6.5, stir evenly and then add a wet strength agent with a concentration of 12.5%;

[0046] (4) Then, the prepared slurry is diluted again, and im...

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Abstract

The invention belongs to the technical field of papermaking, and in particular relates to a micro-stretch printing decorative base paper and a preparation method thereof. The micro-stretch printing decorative base paper includes the following raw materials in weight percentage: 30-50% of bleached cotton pulp, 20-40% of bleached coniferous pulp, 3-20% of bleached hardwood pulp, 20-45% of mineral filler, wet strength agent 0.5-2%. In the printing process of the present invention, the vertical and horizontal changes are smaller, and the pattern after printing is clear and does not lose shape. After being impregnated by downstream customers, the transverse width of the paper changes little, and the pattern on the paper can be well matched with the pattern on the steel plate during pressing, and the pattern does not deviate when pressing the plate.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a micro-stretch printing decorative base paper and a preparation method thereof. Background technique [0002] In the process of printing and impregnating glue, the transverse width of decorative base paper will change to varying degrees due to the filling of water and glue. The current decorative base paper has an excessive lateral expansion rate, which will cause distortion of the pattern on the printing base paper, inaccurate registration, and out-of-synchronization of the pressing plate. [0003] Take a paper strip with a length of 1250mm and a width of 60mm along the horizontal direction (perpendicular to the direction of the paper machine) of the existing decorative base paper, and measure the length of the paper strip after being completely immersed in water for 5 minutes. 1285mm. That is, the transverse moisture expansion rate (1270-1250) / 1250*100 = 1.6%...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/00D21H11/06D21H17/67D21H21/20
Inventor 李安东王镭朱海芝丁福瑞
Owner ZIBO OU MU SPECIAL PAPER