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Dipping process for melamine paper and glue formula used thereof

A technology of melamine paper and impregnation process, which is applied in the fields of paper, papermaking, textiles and papermaking, etc. It can solve the problems of large color difference of melamine paper, deviation of pattern color, and affecting the printing effect of melamine paper, so as to achieve better printing effect and easy control of color difference Effect

Inactive Publication Date: 2007-10-10
DONGGUAN HUALI INDUSTRIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the traditional melamine paper printing process, the melamine base paper is printed with various patterns first, then impregnated with glue, and finally dried and wound. The melamine paper produced by this traditional process has the disadvantage of large color difference, because In the previous printing process, various colorful patterns have been printed on the melamine paper. At this time, if the paper with the pattern is dipped through the glue tank, the printed pattern will be destroyed, and the color of the pattern will be deviated. Affect the printing effect of melamine paper
In addition, the glue used in traditional crafts is ordinary glue, and the effect of dipping is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] One of the preferred embodiments of the present invention is: firstly put 420L of formaldehyde, 380L of methanol, 270kg of melamine, 7.5kg of urea and 3kg of sodium hydroxide into the stirring container successively, the density of the above-mentioned formaldehyde is 1.07g / L, the density of methanol Stir at a constant speed during the feeding process. At the same time, heat the stirring container at a constant speed through the heating equipment to keep the temperature at 40-80°C. After stirring evenly, cool the prepared glue to 50°C and store it for later use . When in use, put the prepared glue into the glue tank of the gluing equipment, and the melamine base paper passes through the glue tank in the gluing equipment, so that the melamine base paper completes the impregnation work, and then dries through the drying equipment, and then prints each product through the printing equipment. After the pattern is dried by the drying equipment, it can be wound up.

[0008] O...

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Abstract

The present invention relates to the field of impregnation technology of melamine paper, in particular, it relates to an impregnation process of melamine paper and its glue formula. Its technological process includes the following steps: firstly, preparing glue, then making melamine base paper be passed through glue tank and making the melamine base paper be impregnated with glue, drying and printing. The glue formula contains (by wt%) 40%-45% of formaldehyde solution, 29-35% of methyl alcohol solution, 25%-30% of melamine, 0.6-1% of urea and 0.1%-0.3% of sodium hydroxide solution.

Description

Technical field: [0001] The invention relates to the technical field of impregnation of melamine paper, in particular to the impregnation process of melamine paper and the glue formula used therein. Background technique: [0002] At present, in the traditional melamine paper printing process, the melamine base paper is printed with various patterns first, then impregnated with glue, and finally dried and wound. The melamine paper produced by this traditional process has the disadvantage of large color difference, because In the previous printing process, various colorful patterns have been printed on the melamine paper. At this time, if the paper with the pattern is dipped through the glue tank, the printed pattern will be destroyed, and the color of the pattern will be deviated. Affect the printing effect of melamine paper. In addition, the glue used in traditional crafts is common glue, and the dipping effect is not good. Invention content: [0003] The object of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/32D21H17/06D21H17/51D21H17/64D21H21/34D21H21/36D21H21/38
Inventor 谭洪汝谢志昆
Owner DONGGUAN HUALI INDUSTRIES CO LTD