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Base paper for decorative coating materials

A decorative coating and base paper technology, applied in the field of manufacturing coating materials and manufacturing decorative coating materials, can solve the problems of limited impregnation and achieve high cost and excellent impregnation performance

Inactive Publication Date: 2015-12-09
古楼特西诺采纸业有限两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the pores of the paper surface are largely closed by the application of the aqueous sizing medium and thus the impregnation of the paper is only possible to a limited extent

Method used

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  • Base paper for decorative coating materials
  • Base paper for decorative coating materials
  • Base paper for decorative coating materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 (B1)

[0043] To produce the pulp suspension, a pulp mixture consisting of 80% by weight eucalyptus pulp and 20% by weight pine kraft pulp was beaten at a consistency of 5% to a freeness of 33° SR. Then 1.8% by weight of epichlorohydrin resin was added as a wet strength agent. The pulp suspension was adjusted to a pH of 6.5 to 7 using aluminum sulfate. Subsequently, a mixture of 40% by weight of titanium dioxide, 5% by weight of talc, 0.11% by weight of retention aids and 0.03% by weight of antifoaming agents was added to the pulp suspension and made to have a density of 90 g / m 2 Decorative base paper with a weight per unit area and an ash content of 32% by weight. The weight figures are given based on the weight of the pulp. In a subsequent step, the decorative base paper is treated with the coating liquid described below in a size press and subsequently dried. The coating weight is 2g / m 2 (when dry).

[0044] Coating fluids for surface coating:

[004...

Embodiment 2

[0048] Example 2 (B2)

[0049] A pulp suspension consisting of 100% by weight eucalyptus pulp was beaten to a freeness of 33° SR at a consistency of 5%. Then 1.8% by weight of epichlorohydrin resin was added as a wet strength agent. The pulp suspension was adjusted to a pH of 6.5 to 7 using aluminum sulfate. Subsequently, a mixture of 36% by weight of titanium dioxide, 5% by weight of talc, 0.11% by weight of a retention aid and 0.03% by weight of an antifoaming agent was added to the pulp suspension and made to have a density of 80 g / m 2 Decorative base paper with a weight per unit area and an ash content of 30% by weight. The weight figures are given based on the weight of the pulp. In a subsequent step, the decorative base paper is treated with the coating liquid described below in a size press and subsequently dried. The coating weight is 6g / m 2 (when dry).

[0050] Coating fluids for surface coating:

[0051]

[0052] The pH of the coating liquid was adjusted to...

Embodiment 3

[0053] Example 3 (B3)

[0054] Dispersions of cationized pyrogenic silicic acid were produced in the following manner:

[0055] Add 35g of the cationic silane preparation DYNASILAN to 1kg of water at 20°C 2999 (from Evonik Industries AG) and 8 g of methanesulfonic acid. With vigorous stirring, 300 g of 300 (Evonik Industries AG) and subsequently via A stator-rotor-dispersion system, model T25, disperses the mixture at 9600 revolutions per minute (U / min) for a duration of 20 minutes. The dispersion of cationized pyrogenic silicic acid produced in this way had a solids content of 22% by weight.

[0056] The decorative base paper produced according to Example 1 was impregnated with the coating liquid described below in a size press and then dried. The coating weight is 8g / m 2 (when dry).

[0057] Coating fluids for surface coating:

[0058] Water 80% by weight

[0059] Magnesium nitrate (solid) 10% by weight

[0060] Cationic pyrogenic silicic acid (solid) 10% by wei...

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Abstract

Base paper comprises raw paper unsized in the mass, comprising a surface application which comprises an alkaline earth metal salt. An independent claim is also included for producing a decorative coating material, comprising printing a paper unsized in the mass and provided with the surface application with a digital printing method, impregnating with a thermoplastic resin, and drying.

Description

technical field [0001] The invention relates to a base paper for a decorative coating material which can be impregnated with a thermosetting impregnating resin and printed by means of an ink-jet method, to the use of the base paper for the manufacture of a decorative coating material and A method of manufacturing a coating material by using a base paper. Background technique [0002] Decorative papers are required for the production of decorative laminates as raw material in furniture manufacture and in interior decoration. Decorative laminates are mainly so-called high-pressure laminates (HPL) and low-pressure laminates (LPL). For the manufacture of high-pressure laminates, the decorative paper in the printed or unprinted state is impregnated with resin, and the decoration is applied in a laminating machine at a temperature of about 110°C to 170°C and a pressure of about 5.5MPa to 11MPa The paper is pressed together with one or more layers of kraft paper impregnated with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/18D21H27/26D21H17/67D21H17/69D21H19/36D21H19/38D21H19/40B41M5/00
CPCD21H17/67B41M5/5218D21H17/675D21H17/69D21H19/36D21H19/38D21H19/385D21H19/40D21H27/18D21H27/26B41J11/0015
Inventor 托马斯·莱费尔特迈克尔·克劳泽赖克·范德茨万安德列亚斯·费克尔
Owner 古楼特西诺采纸业有限两合公司
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