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Black paper-making coating and method for producing black paperboard by utilizing same

A kind of black pigment and black technology, which is applied in the field of black papermaking coating and the production of black cardboard by using it, can solve the problems of easy wrinkling, rough surface of black cardboard, easy decolorization and deformation of the printing layer, etc., and achieve good printing characteristics, surface good smooth effect

Active Publication Date: 2011-09-14
FUYANG RONGSHENG PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing black cardboard production process, the surface of the obtained black cardboard is rough, easy to wrinkle, resulting in insufficient surface smoothness of the product, and the printed layer is easy to discolor and deform after printing. Therefore, it is necessary to focus on the existing coating layer formula and coating process make improvements

Method used

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  • Black paper-making coating and method for producing black paperboard by utilizing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0014] The components shown in Table 1 are mixed and dispersed with a high-speed disperser for 10 to 30 minutes to obtain a black papermaking coating.

[0015] Table 1

[0016]

[0017] In the formula of table 1, CMC is sodium carboxymethyl cellulose, latex is carboxylated styrene-butadiene latex, water-resistant agent is polyamide polyurea resin, dispersant is sodium polyacrylate, and described black pigment is made of graphite, carbon black , copper sulfide, and one or more of organic black compositions composed of hydrocarbons. The choice of black pigments does not affect the performance of product coatings. Other reagents are commonly used reagents in the papermaking field and can be purchased from the market.

Embodiment 10

[0019] A method for producing black cardboard mainly includes two steps of base paper production and coating:

[0020] a. Production of base paper: the raw wood pulp is passed through the paper machine, dried, calendered, and rolled to obtain the formed base paper, and the formed base paper is naturally cooled at room temperature for 5 hours;

[0021] b. Coating: the cooled base paper is heated at 120° C., and the black paper-making paint prepared in Examples 1-9 is applied to the surface of the base paper, cooled and dried to obtain a black cardboard product.

[0022] The raw wood pulp in this embodiment is Canadian Northwood brand bleached softwood pulp. The prepared black cardboard has good surface smoothness, no expansion and deformation, and good printing properties.

Embodiment 11

[0024] A method for producing black cardboard mainly includes two steps of base paper production and coating:

[0025] a. Production of base paper: the raw wood pulp is passed through the paper machine, dried, calendered, and rolled to obtain the formed base paper, and the formed base paper is naturally cooled at room temperature for 6 hours;

[0026] b. Coating: the cooled base paper is heated at 130° C., and the black paper-making paint prepared in Examples 1-9 is applied to the surface of the base paper, cooled, and dried to obtain a black cardboard product.

[0027] The prepared black cardboard has good surface smoothness, no expansion and deformation, and good printing properties.

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Abstract

The invention belongs to the technical field of paper making and relates to a black paper-making coating and a method for producing a black paperboard by utilizing the black paper-making coating. The black paper-making coating is formed by mixing the following components in parts by weight: 10-15 parts of black pigment, 4-5 parts of CMC (Carboxy Methylated Cellulose), 300-450 parts of calcium carbonate, 70-100 parts of kaolin, 15-18 parts of urea, 3-9 parts of hydrophobic agent, 3-10 parts of sodium hydroxide, 3-8 parts of dispersing agent, 3-10 parts of lubricating agent, 1 part of antifoaming agent, 50-240 parts of latex and a proper amount of water. The invention also provides a method for producing the black paperboard by utilizing the black paper-making coating. The black paperboard prepared by the method has the advantages of smooth surface, no stretching or shrinkage and no deformation, favorable printing characteristic, and the like.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and relates to a black papermaking paint and a method for producing black cardboard using the same. Background technique [0002] Black cardboard is a kind of thick paper with strong and thick weight. It has the advantages of fine paper, transparent black, strong and thick, large weight thick paper, good folding resistance, smooth surface, good stiffness, good tensile force, high burst resistance, etc. It is suitable for photo albums, photo frames, backboards, Gift boxes, jewelry boxes, mobile phone boxes, shoe boxes, stationery, clothing tags, notebooks, desk calendars, handbags, electronic gaskets for speakers and speakers, and packaging for various crafts, etc. In the existing black cardboard production process, the surface of the obtained black cardboard is rough, easy to wrinkle, resulting in insufficient surface smoothness of the product, and the printed layer is easy to discolor and d...

Claims

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Application Information

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IPC IPC(8): D21H19/38D21H21/40
Inventor 楼汶荣
Owner FUYANG RONGSHENG PAPER
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