Bio-enzyme auxiliary pulping method

A biological enzyme and pulp technology, which is applied in pulp beating/refining method, cellulose treatment using microorganisms/enzyme, textiles and papermaking, etc., can solve the problems of difficulty in improving the beating degree of softwood pulp and insignificant improvement effect, etc. Achieve the effect of increasing fiber surface area and intermolecular molecular bonding force and promoting the degree of fibrosis

Inactive Publication Date: 2017-10-17
ANHUI BILUN DOMESTIC PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although hardwood pulp is mostly used as raw material for toilet paper, a few products also add some softwood pulp in order to improve the quality. Because the beating degree of softwood pulp is difficult to improve, although the existing method uses biological enzymes to assist beating, the effect is improved. not obvious

Method used

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  • Bio-enzyme auxiliary pulping method

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Effect test

Embodiment 1

[0018] A kind of biological enzyme assisted beating method, the used raw material of described beating method is 100% natural color coniferous wood pulp board, comprises the following steps:

[0019] (1) Thaw the natural softwood pulp board with a mass fraction of 100% with a hydraulic pulper for a certain period of time, and then stir at a constant speed;

[0020] (2) Add a certain amount of enzyme and nano-bentonite suspension to the decomposed slurry, treat it at a certain temperature for a period of time, and then inactivate the slurry;

[0021] (3) Beat the treated slurry through a PFI refiner.

[0022] Further, in the step (1), the time for the hydropulper to disperse is 40 minutes.

[0023] Further, in the step (1), the stirring is carried out at a fixed speed, the rotating speed is 350r / min, and the stirring time is 20-25min.

[0024] Further, a certain amount of enzyme in the step (2) is cellulase, and the added amount is 0.18 IU / g slurry.

[0025] Further, the pre...

Embodiment 2

[0028] A method for biological enzyme-assisted beating, wherein the raw material used in the beating method is 100% natural color coniferous wood pulp board, which is characterized in that, comprising the following steps:

[0029] (1) Thaw the natural softwood pulp board with a mass fraction of 100% with a hydraulic pulper for a certain period of time, and then stir at a constant speed;

[0030] (2) Add a certain amount of enzyme and nano-bentonite suspension to the decomposed slurry, treat it at a certain temperature for a period of time, and then inactivate the slurry;

[0031] (3) Beat the treated slurry through a PFI refiner.

[0032] Further, the time for the hydropulper to disperse in the step (1) is 45 minutes.

[0033] Further, in the step (1), the stirring is carried out at a fixed speed, the rotating speed is 380 r / min, and the stirring time is 25 min.

[0034] Further, a certain amount of enzyme in the step (2) is cellulase, and the added amount is 0.18-0.22 IU / g ...

Embodiment 3

[0038] A method for biological enzyme-assisted beating, wherein the raw material used in the beating method is 100% natural color coniferous wood pulp board, which is characterized in that, comprising the following steps:

[0039] (1) Thaw the natural softwood pulp board with a mass fraction of 100% with a hydraulic pulper for a certain period of time, and then stir at a constant speed;

[0040] (2) Add a certain amount of enzyme and nano-bentonite suspension to the decomposed slurry, treat it at a certain temperature for a period of time, and then inactivate the slurry;

[0041] (3) Beat the treated slurry through a PFI refiner.

[0042] Further, in the step (1), the time for the hydropulper to disperse is 42 minutes.

[0043] Further, in the step (1), stirring is carried out at a fixed speed, the rotating speed is 360r / min, and the stirring time is 20-25min.

[0044] Further, a certain amount of enzyme in the step (2) is cellulase, and the added amount is 0.20 IU / g slurry....

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Abstract

The invention discloses a bio-enzyme auxiliary pulping method and relates to the technical field of paper making. In the bio-enzyme auxiliary pulping method, a 100% original-color needle wood-pulp board is taken as a raw material, and the bio-enzyme auxiliary pulping method comprises the following steps: (1) performing defibering on the 100% original-color needle wood-pulp board for a certain time by using a hydrapulper, and stirring at a fixed rotation speed; (2) putting certain amounts of an enzyme and a nano bentonite suspension into the defibered pulp, treating for a certain time at certain temperature, and performing deactivation treatment on the pulp material; and (3) pulping the treated pulp material by using a PFI (Port Fuel Injection) pulper. As the pulp material is treated by using the enzyme and the nano bentonite suspension, the surface of a fiber can be activated and loosened, the water absorption swelling and fine fibration of the fiber can be improved, the fiber is cut off and devillicated under further mechanical action, the fiber surface area and the intermolecular binding force are increased, and after paper is made of the fiber, the energy consumption of pulping is reduced while the physical properties are improved.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a biological enzyme-assisted beating method. Background technique [0002] Household paper has developed rapidly in recent years, and toilet paper has a large share; in 2015, the total output of toilet paper has reached 10.44 million tons. While calling for the prevention of overcapacity of toilet paper, relevant experts have also begun to pay attention to the cost of toilet paper, and the cost of toilet paper production, such as electricity and other energy consumption, has also attracted much attention. In order to reduce the production cost of the factory and improve the production efficiency of the factory, more and more paper mills use biological enzymes to pretreat the pulp before beating, and reduce the beating while the various physical properties of the pulp are not changed after the paper is made into paper. energy consumption in the process. Although ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/00D21D1/00
CPCD21C5/005D21D1/008
Inventor 许亦南
Owner ANHUI BILUN DOMESTIC PAPER CO LTD
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