A kind of production method of base paper for vacuum aluminizing
A technology of vacuum aluminum plating and production method, which is applied in the direction of special paper, papermaking, paper, etc., which can solve the problems of rough surface of aluminum film, influence of aluminum plated paper, roughness, etc., and achieve improved flatness and gloss, and good surface flatness , reduce the effect of microporous structure
Active Publication Date: 2020-06-16
淮南市通宇塑编有限公司
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Problems solved by technology
Aluminized paper is divided into direct method (aluminized on paper surface) and transfer method (aluminized on film surface) according to its production process. The direct method is to place the paper directly on a vacuum aluminum coating machine for aluminization. The loose structure of the fiber on the paper surface, the surface is rough with fine pores, the obtained aluminum film has a rough surface and poor smoothness, and its flatness cannot adapt to the printing of packaging, resulting in limited application range
The quality of aluminized paper produced by the direct method is greatly affected by the properties of the base paper. In order to improve the performance of the aluminum film, the surface of the paper is often coated before aluminizing to improve the smoothness and brightness of the paper surface. This method has limited improvement on the performance of aluminum-coated paper
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] A production method of base paper for vacuum aluminum plating, including the following steps:
[0019] (1) Add 0.4% calcium nitrate equivalent to the weight of hardwood pulp into hardwood pulp to dissolve completely, add 0.15% of the weight of softwood pulp disodium hydrogen phosphate into softwood pulp to dissolve completely, and then take the same weight Hardwood pulp and softwood pulp are evenly mixed to obtain a mixed pulp. First adjust the pH to 9 and heat and mineralize at 35°C for 24 hours, then adjust the pH to neutral to obtain a modified pulp;
[0020] (2) To the modified pulp obtained in step (1), add a filler equivalent to 10% of the weight of the absolute dry pulp of the modified pulp, a retention aid equivalent to 0.5% of the weight of the absolute dry pulp of the modified pulp, and the equivalent of the modified pulp The sizing agent of 0.05% of the absolute dry pulp weight is copied to obtain uncoated paper;
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The invention discloses a production method of body paper for vacuum aluminum plating. The production method comprises the following steps of firstly, dissolving calcium nitrate and disodium hydrogenphosphate in hard wood pulp and needle wood pulp respectively, then mixing, through a biomimetic mineralization effect, generating hydroxyapatite in the interior and a surface pore of wood pulp cellulose, afterwards, mixing obtained modified paper pulp, a filling material, a retention aid and a sizing agent, and papermaking to obtain an uncoated paper sheet, finally, uniformly covering a coating solution obtained by mixing a styrene-acrylic emulsion, polyvinyl alcohol fluid and silica sol on the surfaces of the uncoated paper sheet, and oven-drying to obtain vacuum aluminum plating body paper.The vacuum aluminum plating body paper produced by the production method has favorable surface smoothness, gloss and printability, and is suitably used in the field of package printing.
Description
Technical field [0001] The invention relates to the technical field of paper processing, in particular to a production method of base paper for vacuum aluminum plating. Background technique [0002] Aluminized paper is mainly composed of base paper, aluminum layer and coating. Because of its good gloss and smoothness, good flexibility, high fastness of sprayed aluminum layer, beautiful and environmentally friendly, it also has good printing performance and mechanical processing performance. The material field is widely used. Aluminized paper is divided into direct method (aluminum plating on paper surface) and transfer method (aluminum plating on film surface) according to its production process. The direct method is to directly place the paper in a vacuum aluminum plating machine for aluminum plating. The loose structure of the paper surface fiber, the surface is rough with fine micropores, the resulting aluminum film has a rough surface and poor smoothness, and its flatness ca...
Claims
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IPC IPC(8): D21H27/00D21C9/00D21H11/20D21H17/67D21H17/68D21H17/29D21H21/10D21H21/16D21H19/20D21H19/14
CPCD21C9/004D21H11/20D21H17/29D21H17/675D21H17/68D21H19/14D21H19/20D21H21/10D21H21/16D21H27/00
Inventor 张树行
Owner 淮南市通宇塑编有限公司