Energy-saving and environment-friendly dry papermaking method capable of realizing waste utilization

A dry papermaking, energy saving and environmental protection technology, applied in the field of papermaking, can solve problems such as seriousness, pollution, and inability to be implemented on a large scale, and achieve the effects of high production efficiency, reduced environmental pollution, and short production cycle.

Inactive Publication Date: 2017-05-31
MOBAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the facts have proved that the pollution of papermaking is more serious by using the traditional papermaking method and using straw instead of bamboo and wood as papermaking raw materials.
With the continuous enhancement of people's awareness of environmental protection and the strict control of the Ministry of Environmental Protection, the traditional papermaking method of using straw instead of bamboo and wood as papermaking raw materials cannot be implemented on a large scale.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of energy-saving and environment-friendly waste utilization dry-process papermaking method proposed by the present invention comprises the following steps:

[0020] S1. Prepare raw materials for papermaking: the weight percentage of each raw material is: 20% bamboo fiber, 22% zeolite powder, 2% starch, 0.2% compound enzyme, 0.8% carboxylated styrene-butadiene latex, and the balance is corn stalks;

[0021] S2. Coarsely pulverizing the corn stalks into a coarse material with a particle size of 8 mm, adding a compound enzyme, stirring and mixing at 60° C. for 2.5 hours to obtain a coarse straw powder;

[0022] S3. Put the coarse straw powder obtained in step S2 into a ball mill, grind it into fine straw powder with a particle size of 15 μm, add carboxylated styrene-butadiene latex, and fully stir and mix at a high temperature of 80° C. to obtain straw fibers;

[0023] S4, mixing the straw fiber, bamboo fiber and zeolite powder obtained in step S3, after mixing even...

Embodiment 2

[0026] A kind of energy-saving and environment-friendly waste utilization dry-process papermaking method proposed by the present invention comprises the following steps:

[0027] S1. Prepare raw materials for papermaking: the percentage by weight of each raw material is: bamboo fiber 15%, titanium dioxide 25%, polyvinyl alcohol 1%, compound enzyme 0.18%, carboxylated styrene-butadiene latex 1%, and the balance is rice straw;

[0028] S2. Coarsely pulverizing the rice straw into a coarse material with a particle size of 10 mm, adding a complex enzyme, stirring and mixing at 45° C. for 3.5 hours, to obtain a coarse straw powder;

[0029] S3. Put the coarse straw powder obtained in step S2 into a ball mill, grind it into fine straw powder with a particle size of 0.1 μm, add carboxylated styrene-butadiene latex, and fully stir and mix at a high temperature of 110° C. to obtain straw fibers;

[0030] S4, mixing the straw fiber, bamboo fiber and titanium dioxide obtained in step S3,...

Embodiment 3

[0033] A kind of energy-saving and environment-friendly waste utilization dry-process papermaking method proposed by the present invention comprises the following steps:

[0034] S1, prepare raw materials for papermaking: the percentage by weight of each raw material is: bamboo fiber 22%, calcium carbonate 18%, dextrin 4%, compound enzyme 0.3%, carboxylated styrene-butadiene latex 0.5%, surplus is wheat straw;

[0035] S2. Coarsely pulverizing the wheat straw into a coarse material with a particle size of 0.1 mm, adding a compound enzyme, stirring and mixing for 4 hours at 40° C., to obtain a coarse straw powder;

[0036] S3. Add the coarse straw powder obtained in step S2 to a ball mill, grind it into fine straw powder with a particle size of 20 μm, add carboxylated styrene-butadiene latex, and fully stir and mix at a high temperature of 90° C. to obtain straw fibers;

[0037] S4, mixing the straw fiber, bamboo fiber and calcium carbonate obtained in step S3, after mixing eve...

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Abstract

The invention discloses an energy-saving and environment-friendly dry papermaking method capable of realizing waste utilization. The method comprises the following steps: carrying out coarse grinding on straw, and then mixing the ground straw with complex enzyme in a stirring way under the condition of heating, so as to obtain coarse straw powder; adding the obtained coarse straw powder into a ball mill, grinding into fine straw powder, adding carboxylic butadiene-styrene latex into the fine straw powder, and fully stirring and mixing at high temperature to obtain straw fibers; mixing the straw fibers, bamboo fibers and paper-making filler, and combing and overlapping by using a carding machine after the materials are evenly mixed, so as to form a thin fiber layer; preparing an adhesive having required viscosity by adding water, dipping the thin fiber layer into the prepared adhesive, then extruding by using a rubber roll for outputting, and drying to obtain products. The energy-saving and environment-friendly dry papermaking method capable of realizing waste utilization comprises the related processes of grinding, mixing, dipping and hot-pressing, and the raw materials used by the method are safe and environmentally-friendly; the method has the advantages of simple operation, no environmental pollution in the production process, short production cycle and high production efficiency, and capabilities of utilizing the waste, and effectively reducing the production cost, thus being worth popularizing.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to an energy-saving and environment-friendly waste utilization dry-process papermaking method. Background technique [0002] Paper is a great invention in ancient my country, which provided the foundation of material technology for the prosperity of ancient Chinese culture. Paper is a general term for sheet-like fiber products used for writing, printing, painting or packaging. Modern papermaking methods can generally be divided into main steps such as pulping, preparation, papermaking, and processing. After converting wood into pulp, it is made through beating, refining, deslagging, screening, washing, and papermaking. The traditional papermaking method pollutes seriously. It has been reported that paper mills are the most polluting factories to the environment. The main pollution of paper mills is wastewater, which mainly includes: raw material wastewater, black liquor, red li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/02D21B1/06D21H11/12D21H17/67D21H21/14
CPCD21B1/021D21B1/063D21H11/12D21H17/67D21H21/14
Inventor 马从勇
Owner MOBAO CO LTD
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