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Cooking process for compound modification of cotton paper pulp, bleaching bamboo paper pulp and bleaching wood paper pulp into dissolving pulp

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Title:
Cooking process for compound modification of cotton paper pulp, bleaching bamboo paper pulp and bleaching wood paper pulp into dissolving pulp
Author: LIU LIN
Subjects: APPARATUS THEREFOR ; IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS ; PULP COMPOSITIONS ; REGENERATION OF PULPING LIQUORS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
Description: The present invention discloses a cooking process for compound modification of a cotton paper pulp, a bleaching bamboo paper pulp and a bleaching wood paper pulp into a dissolving pulp. The cooking process comprises two cooking, wherein the first cooking is used for separately cooking the cotton paper pulp after material preparing, the second cooking is used for cooking the compound paper pulp of the cotton paper pulp being subjected to the first cooking, the bleaching bamboo paper pulp after material preparing, and the bleaching wood paper pulp after material preparing, the second cooking adopts a continuous cooking device to cook, the continuous steaming pipe of the continuous cooking device is arranged into three sections, the one section connected with a pre-reacting material bin is provided with a T-shaped pipe for adding an alkali liquid and a steam pipe for adding steam, and other two sections are respectively provided with a steam pipe for adding steam. According to the present invention, the raw materials adopt the cotton paper pulp, the bleaching bamboo paper pulp and the bleaching wood paper pulp, such that the dissolving pulp preparing cost is substantially reduced, the quality requirements of the dissolving pulp for viscose fibers are met, and the performance is diverse.
Creation Date: 2015
Language: English
Source: esp@cenet

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Cooking process for compound modification of cotton paper pulp, bleaching bamboo paper pulp and bleaching wood paper pulp into dissolving pulp

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