Copper plate card and preparation method thereof

A technology for copper plate cards and primer coatings, applied in the directions of adding inorganic compounds, adding water repellents, adding reinforcing agents, etc., can solve the problem that paper is difficult to meet customer requirements, and achieve the effect of excellent performance, good folding resistance and environmental protection.

Active Publication Date: 2012-10-03
HAINAN JINHAI PULP & PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the times, ordinary paper on the market has become more and more difficult to meet the requirements of many customers at home and abroad. Customers hope to have personalized requirements, and they all hope to have higher pursuit of quality to meet specific needs

Method used

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  • Copper plate card and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The proportion of pulp is softwood pulp (NBKP, purchased from Jinguang APP Group) 20%, hardwood pulp (LBKP, purchased from Jinguang APP Group) 50%, chemical thermomechanical pulp (BCTMP, purchased from Canada Meadow Lake pulp mill) )30%. The base paper layer uses more softwood pulp (NBKP), which can meet the base paper with higher folding resistance requirements. According to the calculation of 1 ton of paper per 0.9 tons of pulp, the raw materials are dispersed and refined in proportion, and wet-end chemicals (alkyl ketene dimer 7kg / t, alkenyl succinic anhydride 1.0kg / t, positive starch 10kg / t, polyacrylamide ternary retention system, fluorescent whitening agent 2kg / t, polyaluminum chloride 0.7kg / t), sizing, dehydration, front drying, surface sizing, post drying, curling into paper, and making base paper .

[0025] The dust point of base paper is controlled below 0-5ppm to meet the basic requirements for the appearance of high-grade paper in the international market...

Embodiment 2

[0033] The proportion of pulp is 30% of softwood pulp (NBKP), 50% of hardwood pulp (LBKP), and 20% of chemithermomechanical pulp (BCTMP). According to the calculation of 1 ton of paper per 0.95 tons of pulp, the raw materials are dispersed, refined, and wet-end chemicals are added in proportion (5 kg / t of alkyl ketene dimer, 08 kg / t of alkenyl succinic anhydride, 8 kg / t of positive starch) t, polyacrylamide ternary retention system, polyaluminum chloride 0.5kg / t), sizing, dehydration, pre-drying, surface sizing, post-drying, curling into paper, and making base paper.

[0034]The dust point of base paper is controlled below 0-5ppm to meet the basic requirements for the appearance of high-grade paper in the international market. The paper weight of the base paper is 100-200gsm, the ash content of the base paper is controlled at 5% or less, and a three-way retention system (cationic polyacrylamide 0.2kg / t, anionic polyacrylamide 0.2kg / t, weak anionic polyacrylamide 2.0 kg / t), th...

Embodiment 3

[0039] The proportion of pulp is 25% of softwood pulp (NBKP), 45% of hardwood pulp (LBKP), and 30% of chemical thermomechanical pulp (BCTMP). According to the calculation of 1 ton of paper per 0.95 tons of pulp, the raw materials are dispersed, refined, and wet-end chemicals are added in proportion (10kg / t of alkyl ketene dimer, 1.2kg / t of alkenyl succinic anhydride, 12kg of positive starch / t, polyacrylamide ternary retention system, fluorescent whitening agent 5kg / t, polyaluminum chloride 1kg / t), sizing, dehydration, pre-drying, surface sizing, post-drying, curling into paper, and make base paper.

[0040] The dust point of base paper is controlled below 0-5ppm to meet the basic requirements for the appearance of high-grade paper in the international market. The grammage of base paper is 100-300gsm, the ash content of base paper is controlled at 5% or less, and a ternary retention system (cationic polyacrylamide 0.2kg / t, anionic polyacrylamide 0.2kg / t, weak anionic polyacryl...

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Abstract

The invention provides a copper plate card, which comprises base paper, a ground coating and a surface coating, wherein the ground coating and the surface coating are coated on both sides of base paper in sequence; the preparation raw material for base paper comprises chemical pulp, mechanical pulp, wet-end chemicals, an inner sizing agent and a surface sizing agent, and the chemical pulp accounts for 20 to 80 parts by weight, and the mechanical pulp accounts for 10 to 30 parts by weight; the ground coating comprises pigment accounting for 60 to 100 parts by weight and an adhesive accounting for 10 to 17 parts by weight; and the surface coating comprises pigment accounting for 70 to 100 parts by weight and an adhesive accounting for 8 to 15 parts by weight. The invention also provides a preparation method of the copper plate card. The copper plate card and the preparation method select and use the mechanical pulp in a suitable proportion, reduce the utilization of the chemical pulp, save natural resources such as forest, water and the like, are beneficial to environmental protection, and ensure the quality; in addition, the bulk of the energy-saving environment-friendly copper plate card with high hard fold quality is controlled within 0.95 to 1.05cm<3>/g, the folding endurance of obtained paper is good, the coating quantity on the both sides are concordant approximately, the remaining effect of printing ink on the paper surface is excellent, and the color of ink is bright.

Description

technical field [0001] The invention belongs to the field of pulp mixture, in particular to a copper plate card and a preparation method thereof. Background technique [0002] With the rapid development of the times, ordinary paper on the market has become more and more difficult to meet the requirements of many customers at home and abroad. Customers hope to have personalized requirements, and they all hope to have higher pursuit of quality to meet specific demand. For high-quality copperplate cards, it is necessary to increase the paper folding strength to a higher level, and the production materials are more energy-saving and environmentally friendly, fully meeting the quality requirements of post-processing. Therefore, in order to meet the needs of this part of customers in the market, we have specially developed copperplate cards with high folding resistance, quality, energy saving and environmental protection. [0003] Copperplate cards coated on both sides, focusing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/10D21H19/84D21H19/38D21H19/40D21H19/42D21H19/54D21H19/58D21H19/60D21H21/16D21H21/30D21H21/18D21H17/66
Inventor 陈汉彬李娟施立才马开元
Owner HAINAN JINHAI PULP & PAPER
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