Method for producing kraft using American waste paper

A technology of kraft paper and waste paper, applied in processing waste paper, recycling technology, plant parchment/imitation parchment, etc., to achieve the effect of no pollution, reliable product quality and reasonable process

Inactive Publication Date: 2006-12-13
李明全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using waste paper, especially U.S. waste paper to produce kraft paper (because the wood pulp content of U.S. waste paper is about 85%), in the current prior art, only middle and low-grade kraft paper can be produced, and there are some technical problems in producing refined kraft paper has not been resolved

Method used

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Embodiment Construction

[0011] Below in conjunction with embodiment the present invention is described in detail:

[0012] The method of using American waste paper to produce refined kraft paper first selects American waste paper OCC13 # , load compliant American waste paper into 20-40m 3 In the container, heat treatment after adding water, the temperature is controlled between 90-130°C, and the heating time is between 90-130 minutes. The high-temperature treatment needs to add a cooking catalyst, and the dosage is controlled within 0.5-0.9Kg per ton. Add twice, add 50% of the total amount for the first time before high-temperature treatment, and add 50% of the total amount for the second time when the high-temperature treatment temperature reaches 80°C; the heated raw materials need to be dispersed with thermal dispersion equipment , and then go through beating, rinsing, refining, deballasting, and pulping, and then return to the high-level tank, and then go through the net, pressing, drying, calen...

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PUM

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Abstract

The invention provides a method of producing exquisite brown paper by American waste paper, firstly picking American waste paper, encasing the American waste paper which is up to the mustard in case, by furnace run after adding water, controlling temperature between 90-130DEG C, the heating time is between 90-130min, adding boiling accelerant after high-temperature processing, controlling dosage less than ton dosage 0.5-0.9Kg, adding boiling accelerant at twice, adding 50% of gross before the high-temperature processing for the first time, adding 50% of gross when the high-temperature processing temperature reaching 80DEG C; The heated materials need to be dispersedly disposed by thermal dispersion equipment, and then after beating, poaching and pulping returning to perch vat, by netting, expression, drying, calendaring and crimp would get product. The invention has reasonable technique, convenient operation, no pollution and high economic value.

Description

technical field [0001] The invention relates to a technical field of producing kraft paper, in particular to a method for producing refined kraft paper from American waste paper. Background technique [0002] At present, the raw material used in the production of kraft paper in our country is still wood, and the production of refined kraft paper requires even better wood, and the production of one ton of kraft paper consumes 7 to 15m of wood. 3 . my country needs tens of millions of tons of kraft paper every year, and the raw wood required is unbearable for ecological resources. Therefore, protecting a good ecological environment, saving wood resources, and opening up new ways to produce raw materials for kraft paper are urgently needed by technical personnel in this field. question. However, using waste paper, especially U.S. waste paper to produce kraft paper (because the wood pulp content of U.S. waste paper is about 85%), in the current pri...

Claims

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Application Information

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IPC IPC(8): D21H27/06D21C5/02
CPCY02W30/64
Inventor 李明全
Owner 李明全
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