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A color card and its manufacturing method

A production method and color card technology, applied in the field of papermaking, can solve the problems of backward manufacturing technology and complex raw material allocation of bright red cards, and achieve the effect of low cost, simple production process and easy collection

Active Publication Date: 2021-09-07
浙江一树纸业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology has the following problems: the manufacturing technology of the red card in the prior art is backward, and the raw material allocation is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A bright red card made of the following raw materials: 20% needle leaves, 60% broadleaf, and 20% waste paper.

[0049] A method for making a bright red card, comprising the following steps:

[0050] A. Pulping preparation

[0051] 1) wood pulp pulping: put the wood pulp board into the hydropulper, and disintegrate it by the hydropulper;

[0052] 2) Wood pulp refining: the crushed pulp is refined through a double-disc refiner, and the fibers are kneaded and extruded by the toothed discs in the grinding zone to complete the beating process to form pulp;

[0053] Wood pulp beating degree: 35°SR, wet weight of softwood pulp: 6g, wet weight of hardwood pulp: 1.6g;

[0054] 3) Waste paper pulping: In order to reduce production costs, some waste paper pulp is used.

[0055] Waste paper pulping process: Firstly, it goes through a hydropulper, hydropulper → fiber separator (re-shredding and separation) → sand remover (removal of impurities) → pressure screen (removal of coars...

Embodiment 2

[0084] A bright red card made of the following raw materials: needle leaves 30%, broadleaf 55%, waste paper 15%.

[0085] A method for making a bright red card, comprising the following steps:

[0086] A. Pulping preparation

[0087] 1) wood pulp pulping: put the wood pulp board into the hydropulper, and disintegrate it by the hydropulper;

[0088] 2) Wood pulp refining: the crushed pulp is refined through a double-disc refiner, and the fibers are kneaded and extruded by the toothed discs in the grinding zone to complete the beating process to form pulp;

[0089] Wood pulp beating degree: 38°SR, wet weight of softwood pulp: 7g, wet weight of hardwood pulp: 2.2g;

[0090] 3) Waste paper pulping: In order to reduce production costs, some waste paper pulp is used.

[0091] Waste paper pulping process: Firstly, it goes through a hydropulper, hydropulper → fiber separator (re-shredding and separation) → sand remover (removal of impurities) → pressure screen (removal of coarse im...

Embodiment 3

[0120] A bright red card made of the following raw materials: needle leaves 25%, broadleaf 58%, waste paper 12%.

[0121] A method for making a bright red card, comprising the following steps:

[0122] A. Pulping preparation

[0123] 1) wood pulp pulping: put the wood pulp board into the hydropulper, and disintegrate it by the hydropulper;

[0124] 2) Wood pulp refining: the crushed pulp is refined through a double-disk refiner, and the fibers are rubbed and extruded by the toothed discs in the grinding zone to complete the beating process to form pulp;

[0125] Wood pulp beating degree: 35-42°SR, wet weight of softwood pulp: 6-7g, wet weight of hardwood pulp: 1.6-2.2g;

[0126]3) Waste paper pulping: In order to reduce production costs, some waste paper pulp is used.

[0127] Waste paper pulping process: Firstly, it goes through a hydropulper, hydropulper → fiber separator (re-shredding and separation) → sand remover (removal of impurities) → pressure screen (removal of co...

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Abstract

The invention discloses a color card and a manufacturing method thereof, which are made of the following raw materials: 20%-30% of needle leaves, 55%-60% of broad leaves, 15%-20% of waste paper; 1) wood pulp crushed Processing: put the wood pulp into the hydraulic pulper, and break it into pulp through the hydraulic pulper. The crushed pulp is refined in the double-disc refiner, and the tooth discs are kneaded in the grinding area. Extrusion completes the beating process. 2) Treatment of waste paper: In order to reduce production costs, some waste paper pulp is used. The waste paper pulping process: firstly, it is crushed by a hydropulper, then hydropulper → fiber separator (then crushing and separation) → sand remover (removing impurities) → pressure screen (removing coarse impurities and light impurities) → high-speed pulp washer (slurry concentration) → double disc refiner → pulp tank; the raw materials used in the present invention are Coniferous leaves, broad leaves and waste paper are common materials in daily life, and they are easy to purchase and collect, and the price is favorable. Using waste paper raw materials to make Lihong Card realizes the utilization of waste.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a color card and a manufacturing method thereof. Background technique [0002] White cardboard is a kind of thick paper that is strong, thick and quantitative. In the past, some people planned to use the quantity as the basis to divide: paper, cardboard and cardboard; ), called heavy paper. In fact, it is also a kind of jam. [0003] The most common cardboard is not colored, commonly known as white cardboard. If it is colored, it is called color jam according to the color. The surname of white cardboard is "white", so it has high requirements for whiteness. The whiteness of A grade is not lower than 92%, B grade is not lower than 87%, and C grade is not lower than 82%. When the whiteness exceeds 90%, it is a bit "bright and dazzling". [0004] The existing technology has the following problems: the manufacturing technology of the bright red card in the prior...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00D21H11/14D21H11/00D21H17/67D21H17/29D21H21/28D21H19/10D21H17/28D21H21/16
CPCD21F11/00D21H11/00D21H11/14D21H17/28D21H17/29D21H17/675D21H19/10D21H21/16D21H21/28
Inventor 吴小伟夏彬叶景桥卿贵庭
Owner 浙江一树纸业集团有限公司