Color card and preparation method thereof

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

Active Publication Date: 2020-02-07
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-disk 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 kneaded 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 c...

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Abstract

The invention discloses a color card and a preparation method thereof. The color card is prepared from the following raw materials: 20%-30% of needle leaves, 55%-60% of broad leaves and 15%-20% of waste paper. The preparation method comprises the steps: 1) wood pulp repulping: placing wood pulp into a hydrapulper, repulping the wood pulp by using the hydrapulper to form a pulp, pulping the repulped pulp in a double-disc pulping machine, and kneading and extruding the pulp by using fluted discs in a pulping region to complete a pulping process; and 2) waste paper treatment: matching part of waste paper pulp in order to reduce the production cost, wherein the process of pulping the waste paper comprises the steps: firstly, repulping the waste paper by using the hydrapulper, namely sequentially treating by using the hydrapulper, a defibering machine (repulping separation), a desander (impurity removal), a pressure screen (coarse and light impurity removal), a high-speed pulp washer (pulpconcentration), the double-disc pulping machine, and a pulp forming tank. The color card is prepared from the needle leaves, the broad leaves and the waste paper serving as raw materials which are common in daily life, easy to purchase and collect and low in price, and a brilliant red color card is prepared by adopting the waste paper as the raw material, so that waste utilization is realized.

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 Applications(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
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