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Paper for high-filler culture and production method thereof

A technology for cultural paper and production method, applied in the field of papermaking, can solve the problems of unsatisfactory cultural paper, refractory degradation, heavy weight, etc. Effect

Inactive Publication Date: 2011-09-14
GUONENG PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality of this kind of stone paper is very different from that of commonly used paper. It mainly has problems such as refractory degradation, difficult printing, small use area (large weight), and difficult recycling, which does not meet the requirements of cultural paper.
Can't realize the production of high filler cultural paper in the prior art thus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Produce high-fill fine paper using the following methods:

[0036] Step 101, disintegrate and disperse 50 parts by weight of bleached kraft softwood pulp board with a hydraulic pulper and send it to the pulp storage tank before knocking, and add 50 parts by weight of calcium silicate filler into the pulp storage tank before knocking to obtain Pulp; adding water to the pulp to adjust to obtain the mixed slurry A, so that the mass percentage of the pulp in the mixed slurry A is 6.0%;

[0037] Wherein, the whiteness of the calcium silicate filler in this step is 92%, and bulk density is 0.30g / cm 3 , with an average particle size of 20 μm;

[0038] Step 102, beat the mixed slurry A obtained in step 101 to a beating degree of 40°SR with a disc refiner, and dilute with water to obtain mixed slurry B, so that the mass percentage of pulp in mixed slurry B is 4.0%; and Send the mixed slurry B into the slurry storage tank after knocking;

[0039] Step 103, the mixed slurry B o...

Embodiment 2

[0052] Produce high-fill fine paper using the following methods:

[0053] Step 201, disintegrate and disperse 40 parts by weight of bleached kraft softwood pulp board with a hydraulic pulper and send it to the pulp storage tank before knocking, and add 60 parts by weight of calcium silicate filler into the pulp storage tank before knocking to obtain Pulp; adding water to the pulp to adjust to obtain the mixed slurry A, so that the mass percentage of the pulp in the mixed slurry A is 6.0%;

[0054] The whiteness of calcium silicate filler in this step is 93%, and bulk density is 0.25g / cm 3 , with an average particle size of 23 μm;

[0055] Step 202, using a disk refiner to beat the mixed slurry A obtained in step 201 to a degree of beating of 42°SR, then dilute with water to obtain mixed slurry B, so that the mass percentage of pulp in mixed slurry B is 5.0%; and Send the mixed slurry B into the slurry storage tank after knocking;

[0056] Step 203, the mixed slurry B obtain...

Embodiment 3

[0068] Produce high-fill fine paper using the following methods:

[0069] Step 301, disintegrate and disperse 30 parts by weight of bleached kraft softwood pulp board with a hydraulic pulper and send it to the pre-knock pulp storage tank, and add 70 parts by weight of calcium silicate filler to the pre-knock pulp storage tank to obtain Pulp; adding water to the pulp to adjust to obtain the mixed slurry A, so that the mass percentage of the pulp in the mixed slurry A is 8.0%;

[0070] The whiteness of calcium silicate filler in this step is 91%, and bulk density is 0.20g / cm 3 , with an average particle size of 28 μm;

[0071] Step 302, using a disk refiner to beat the mixed slurry A obtained in step 301 to a degree of beating of 45°SR, then dilute with water to obtain mixed slurry B, so that the mass percentage of pulp in mixed slurry B is 5.0%; and Send the mixed slurry B into the slurry storage tank after knocking;

[0072] Step 303, the mixed slurry B obtained in step 302...

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Abstract

The invention provides paper for high-filler culture and a production method thereof. The method comprises the following steps of: beating and dispersing 25 to 60 weight parts of wood pulp, and then mixing the wood pulp and 40 to 75 weight parts of calcium silicate filler to obtain paper pulp; diluting the paper pulp by adding water to obtain mixed pulp A, wherein the paper pulp accounts for 5 to12 mass percent of the mixed pulp A; beating the mixed pulp A, and diluting the beaten pulp by adding water to obtain mixed pulp B, wherein the paper pulp accounts for 3 to 7 mass percent of the mixed pulp B; removing residue from the mixed pulp B, and then adding a reinforcing agent, a dispersant and a retention and filtration aid to obtain mixed pulp C; diluting the mixed pulp C by adding waterto obtain mixed pulp D, wherein the paper pulp accounts for 0.3 to 4 mass percent of the mixed pulp D; and manufacturing the paper for the culture with the mixed pulp D by using a papermaking machine. The paper for the high-filler culture solves the problem of low filler adding amount in the prior art.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a cultural paper with high filler and a production method thereof. Background technique [0002] Currently commonly used cultural paper is mainly made of a large amount of plant fiber pulp, and then 10% to 20% of mineral fillers such as calcium carbonate or talcum powder and a small amount of chemical additives are added. However, with the environmental pollution caused by the pulping process and the large consumption of plant raw materials, large water consumption, and large energy consumption, it is necessary to consider a papermaking process that reduces the amount of plant fiber but must ensure the performance of the paper itself. [0003] At present, there is a product called stone paper, which is made by mixing calcium carbonate powder and plastic to form a film. This method uses 50% to 80% calcium carbonate powder with a particle size of 800 mesh to 1200 me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/68D21H21/18D21H21/08D21H21/10
Inventor 张毅孙俊民陈刚吴养育张战军张美云张楠闫邵勇孙振斌张晓云
Owner GUONENG PAPER IND
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