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Paper made of textile, industrial and agricultural waste residues and papermaking method

A paper and waste residue technology, applied in textiles and papermaking, chemical instruments and methods, paper, etc., can solve the problems of unreusable waste water, unacceptable production costs, and unpurification.

Active Publication Date: 2021-04-27
夏振明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (3) Use raw pulp and waste paper pulp fibers to mix some textile waste fibers, and after adding PVA, they can be copied into paper sheets on a paper machine, but there is a problem, that is, sewage treatment.
Chinese patent: CN103147337A, the textile waste fiber is modified by alkali reduction. After alkali reduction modification, terephthalic acid and ethylene glycol fragments account for about 10% of the total fiber dissolution, and the slurry needs to be washed , after two to three times of washing, the water consumption is about 200 tons / ton (paper). Even after terephthalic acid is recycled in the wastewater, the COD content is still as high as 10,000 mg / l. This kind of wastewater cannot be purified in the biochemical system of papermaking wastewater, and the wastewater cannot Reuse
For corrugated medium paper with a price of only 2,500 yuan / ton, such a production cost is unacceptable

Method used

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  • Paper made of textile, industrial and agricultural waste residues and papermaking method
  • Paper made of textile, industrial and agricultural waste residues and papermaking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] The industrialized production method of waste fiber surface cleaning and hydrophilic finishing agent coating and finishing:

[0097] Self-made waste fiber surface modification production line, the production line is composed of carding machine, corona machine, padding machine, drying machine, PLC automatic control system is connected to form an automatic production line. The corona machine is modified by using a commercially available high-power corona cleaning machine. The selected corona cleaning machine has a three-phase power supply of 380v / 50kZ, an output power of 1kw-60kw, an output frequency of 3khZ-25kZ, and an output voltage of 0-20kv that can be continuously adjusted. The width is 0.5-3 meters, preferably 3 meters. Choose one or two double-sided corona discharge racks, preferably two sets. The electrodes are multi-needle (needle array) to large roller type (equivalent to plate type), and the electrode distance is 2-30mm. Preferably 10-20mm; carding machine, pa...

Embodiment 2

[0102] Surface grafting method for hydrophilic modification of waste fiber:

[0103] The surface grafting modification of the hydrophilic groups of synthetic fibers, the only water-based chemical methods that can be industrialized in China, such as alkali reduction or chromic acid oxidation followed by grafting acrylic monomers, but this method brings a lot of waste water pollution It is used in the field of waste fiber papermaking, and cannot afford the cost of wastewater treatment. However, the electromagnetic wave radiation and plasma treatment that have emerged in recent years cannot be applied to industrial production. The present invention has completed the experiment of using microwave plasma to directly graft organic graft gas on the fiber surface. This experiment is expected to be industrialized.

[0104] The microwave plasma treatment machine adopts WB240 microwave plasma cleaning machine of Yantai Godel Technology Co., Ltd., the frequency is 2.45GHZ, the power is co...

Embodiment 3

[0106] The third surface modification method of waste fiber: functional material modification of waste fiber surface:

[0107] Use silane coupling agent KH-570 to make functional coating of waste fibers, and then use hydrophilic finishing agent to make hydrophilic fibers, which are used as papermaking materials.

[0108] Raw material preparation: ①Waste fiber raw material: preferably synthetic fiber or inorganic fiber, also can use their mixture. ② Preparation of silane coupling agent KH570 finishing solution: ethanol / water = 1 / 9, add acid to adjust the pH value to 4, add appropriate amount of EDTA to make silane coupling agent KH-570 hydrolyzate, add silane coupling agent KH under stirring -570, to achieve a concentration of 0.1-5%, preferably 0.5-2%, in KH-570, you can also add non-ionic surfactant OP10 accounting for 0.1% of the total amount, mix well and put them into the hydrolyzate together, stir and hydrolyze 1H spare. ③Preparation of hydrophilic finishing agent: Sodi...

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Abstract

The invention discloses paper produced by taking textile, industrial and agricultural waste residues as raw materials and a papermaking method, and belongs to the technical field of papermaking. Waste fibers generated in industry and agriculture are subjected to surface modification and blended with papermaking sludge, cottonseed velvet, cotton ash, vinasse, waste mushroom residues, traditional Chinese medicine residues, starch leftovers, potato residues, waste leather, straws, waste veneers, sawdust, waste bamboos, nutshells and other waste residues and corresponding additives for high-speed, medium-speed and low-speed industrial production of paper, 10-1500 g / m<2> paper can be produced, and paper quality reaches national standards. The pollution problem of the industrial and agricultural waste residues is solved from the source, more than 20 million tons of papermaking fibers are found for the papermaking industry, and the problem of domestic waste paper shortage caused by national limit on imported ocean garbage is effectively solved; and meanwhile, 95% of papermaking raw materials are waste residues and garbage, and the raw materials do not need to be purchased, so that the production cost is low, and very high benefits are brought to enterprises.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and particularly relates to a paper made from textile, industrial and agricultural waste residues and a papermaking method. Ashes, distiller's grains, waste mushroom residues, traditional Chinese medicine residues, starch waste, potato residues, waste leather, straw, waste wood veneer, wood chips, waste bamboo, nut shells and other waste residues are used as auxiliary materials, and additives are added for large-scale paper production. And high, medium and low grade paper produced by this method. Background technique [0002] In modern papermaking technology, in addition to special paper, there are mainly two kinds of papermaking raw materials: the first one is made of wood, bamboo, straw, cotton and linen, rags (composed of pure cellulose fibers), etc., through chemical, mechanical, Biological or chemical-mechanical synergy and bio-mechanical synergy are used to make paper pulp, which is ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/14D21H17/01D21H17/02D21H17/00D21H11/00D21H13/42D21H13/02D21H13/40D06M15/285D06M15/263D06M15/333D06M10/00C02F11/00C02F11/125C02F11/02C02F11/148
CPCD21H11/14D21H17/01D21H17/02D21H17/00D21H11/00D21H13/42D21H13/02D21H13/40D06M15/285D06M15/263D06M15/333D06M10/003C02F11/00C02F11/125C02F11/02C02F11/148
Inventor 夏振明
Owner 夏振明
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