Paper-making technique employing bio-fermentation pulping method instead of chemical pulping technique

A papermaking process and biological fermentation technology, which is applied in papermaking, papermaking, textiles and papermaking, etc., can solve the problems such as the inability to completely cancel the chemical pulping process, the large investment in recycling equipment, and the increase in production costs, and can eliminate the chemical pulping process. , The effect of improving the quality of papermaking and reducing the cost of raw materials

Inactive Publication Date: 2008-07-23
陈淑华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) Pollution of the environment: A large amount of alkaline wastewater (black liquor) will be produced during the production process. If it is directly discharged into nature, it will cause serious environmental pollution such as water pollution and soil compaction. This makes the paper industry a polluting industry
[0007] (2) Corrosion equipment: the above method will consume a large amount of acid, alkali, and salt, and the strong acid and strong alkali used will corrode production equipment such as steaming balls
[0008] (3) High energy consumption: due to the use of strong acid and strong alkali to treat pulping raw materials and repeated washing with a large amount of water after the bleaching stage, it consumes both electricity and water
[0009] (4) Increased production cost: In order to reduce pollution, the black li

Method used

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  • Paper-making technique employing bio-fermentation pulping method instead of chemical pulping technique

Examples

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Effect test

Embodiment 1

[0044] A kind of papermaking process method that replaces chemical pulping process with bio-fermentation pulping method, it comprises pulping, papermaking process section, wherein the pulping section is (1) stock preparation and (2) dissociated fiber steps of following steps; Papermaking The section is (3) loose pulp in the following steps; (4) vertical net; (5) pressing; (6) drying; (7) surface sizing; (8) calendering; The processing method is as follows:

[0045] (1) material preparation: wood is pulverized into 40~80 mesh particles, adding weight is 2% wheat bran and 7% dry bean dregs of wood gross weight, then adding weight is 20% water of wood gross weight and stirs evenly;

[0046] (2) Dissociated fibers: put the above mixture into a cooking pot and cook and sterilize it at 120° C. for 10 minutes, take it out, add aspergillus flavus whose weight is 0.05% of the total weight of wood after cooling, stir evenly, and place it in a fermenter. The thickness is 300cm; ferment fo...

Embodiment 2

[0055] A kind of papermaking process method that replaces chemical pulping process with bio-fermentation pulping method, it comprises pulping, papermaking process section, wherein the pulping section is (1) stock preparation and (2) dissociated fiber steps of following steps; Papermaking The technology of the prior art can be adopted for the technology of the section from loose pulp to coiling into paper. The concrete processing method of described step (1), (2) is:

[0056] (1) material preparation: wood and waste bagasse are pulverized together into 100 mesh particles, adding weight is 7% wheat bran and 5% dry bean dregs of the total weight of wood and waste bagasse, then adding weight is wood and waste bagasse 70% water of the total weight is stirred evenly;

[0057] (2) Dissociated fiber: put the above mixture into a cooking pot, cook and sterilize at 100°C for 30 minutes, take it out, and add a combination of Aspergillus flavus and Monascus whose weight is 0.15% of the t...

Embodiment 3

[0059] A kind of papermaking process method that replaces chemical pulping process with bio-fermentation pulping method, it comprises pulping, papermaking process section, wherein the pulping section is (1) stock preparation and (2) dissociated fiber steps of following steps; Papermaking The section is (3) loose pulp in the following steps; (4) vertical net; (5) pressing; (6) drying; (7) surface sizing; (8) calendering; The processing method is as follows:

[0060] (1) Prepare materials: crush reeds and cotton stalks together into 50-60 mesh particles, add 5% wheat bran and 5% dry bean dregs with a weight equal to the total weight of reeds and cotton stalks, 50% water by weight is stirred evenly;

[0061] (2) Dissociated fibers: put the mixture into a cooking pot, cook and sterilize it at 110° C. for 20 minutes, take it out, and add the Aspergillus flavus and Aspergillus oryzae compositions whose weight is 0.1% of the total weight of reeds and cotton stalks after cooling, St...

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PUM

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Abstract

The invention discloses a paper making craft which replaces the chemical pulp making with biological fermentation pulp making, comprising process sections of pulp making and paper making. The procedures can be described as follows: (1) material preparation: fiber plants are grinded; (2) dissociation of the fiber: the grinded fiber plants are sterilized through steaming and boiling; after being cooled, mould that can decompose cellulose and lignin is added in; then the mixture is evenly stirred and put into a fermentation tank to be fermented; when the fiber plants are dissociated fluffy, the paper pulp is made. Since a plurality of chemical treating procedures are avoided due to the spare of chemical source materials, more than twenty procedures in previous paper making process are reduced into only several procedures, therefore, the paper making procedures are greatly simplified and a large amount of producing materials and energy is saved; thus the paper making craft has the advantages of greatly reduced production cost, source-saving and energy-saving effects.

Description

technical field [0001] The invention relates to a papermaking process, in particular to an environment-friendly, high-efficiency and low-cost papermaking process in which the chemical pulping process is replaced by a biological fermentation pulping process. Background technique [0002] The existing papermaking process includes pulping, papermaking, surface sizing, processing and other process sections. Among them, pulping and papermaking are the basic processes of paper structure in the papermaking process, and surface sizing and processing belong to the deep processing of papermaking. process. [0003] The pulping section includes: raw material selection→cooking and separating fibers→washing→bleaching→washing and screening→concentrating or making pulp into flakes→reserving for later use; [0004] The papermaking section includes: loose pulp → impurity removal → fine pulp → beating → preparation of various additives → mixing of paper stock → flow of paper stock → head box ...

Claims

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Application Information

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IPC IPC(8): D21B1/04D21C3/00C12S3/08D21F11/00D21C7/00
Inventor 陈淑华梁明润
Owner 陈淑华
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