High-smoothness papermaking sizing agent

A smoothness and sizing agent technology, applied in the field of high smoothness paper sizing agent, can solve the problems of low surface strength and smoothness, achieve good smoothness, prevent diffusion and penetration, and improve surface strength and smoothness Effect

Inactive Publication Date: 2019-01-18
FOSHAN SENANG BIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a paper-making sizing agent with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] The preparation method of composite auxiliary materials includes the following steps:

[0031] (1) Mix sodium alginate and reagent A at a mass ratio of 1:25-40 at 25-40°C and stir, move to an ultrasonic oscillator, oscillate ultrasonically at a frequency of 55-65kHz for 10-15min, then heat up to 50-65 ℃, add the silane coupling agent KH-560 with 6% of sodium alginate mass to mix, keep for 30-50min, transfer to centrifuge and centrifuge at 3000-4000r / min for 12-20min, take the centrifugal material and bake in 60-70℃ oven Dry, get the dried product, take the dried product in a mortar and grind for 30~50min at 220~350r / min to get the ground;

[0032] (2) Mix the ground material and plant extract according to the mass ratio of 1:8~14, soak at room temperature for 1~3h, filter, take the filter cake and dry it in an oven at 55~70℃ to obtain the dried product, according to the mass ratio of 1: 14~20 Take quaternary ammonium salt chitosan and 8% acetic acid solution, mix and stir, ...

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PUM

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Abstract

The invention relates to a high-smoothness papermaking sizing agent and belongs to the field of additives for papermaking. According to the high-smoothness papermaking sizing agent, sodium alginate isactivated firstly and then is treated through a silane coupling agent to improve the surface activity and the performance of polyanions to form hydrogel with a crosslinking network structure, so thatdiffusion and penetration of water liquid are prevented and the hydrogel has good waterproof performance; the silane coupling agent is added so that the surface energy can be reduced, and the surfacestrength and smoothness are further improved; an instable double bond and the like of added oxidized natural rubber can be oxidized into active groups including carboxyl and the like under an oxidization condition of potassium permanganate, so that cells are activated and tissues are regenerated; a reagent B and a plant extracting solution in a composite auxiliary material also can provide needednutrients; the regenerated cells can be filled into a three-dimensional network structure formed by the sizing agent to form a papermaking sizing agent protection layer with a plant cell grade; and the surface strength and smoothness of paper pulp are improved. By adopting the high-smoothness papermaking sizing agent, the problem of a current common papermaking sizing agent that the surface strength and the smoothness are low is solved.

Description

technical field [0001] The invention belongs to the field of additives for papermaking, in particular to a papermaking sizing agent with high smoothness. Background technique [0002] There are a lot of capillary pores between the fibers in the paper, and the cellulose and hemicellulose that make up the fibers contain hydrophilic hydroxyl groups and other hydrophilic groups, which can absorb water or other liquids, and are written on paper made only of fibers Or when printing, the ink or ink will permeate and diffuse, causing unclear or through printing. In addition, the strength of the paper will decrease after absorbing water, which will affect the normal use of the paper. In order to make the paper have a certain liquid resistance to meet its application requirements, it is necessary to add a film-forming substance with liquid resistance to the paper, which is the paper sizing agent. There are many kinds of paper sizing agents, such as rosin glue, petroleum resin glue, p...

Claims

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Application Information

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IPC IPC(8): D21H21/16D21H17/36D21H17/14D21H17/21D21H17/30D21H17/24D21H17/02D21H17/59D21H17/53
CPCD21H17/02D21H17/14D21H17/21D21H17/24D21H17/30D21H17/36D21H17/53D21H17/59D21H21/16
Inventor 胡次兵陈建春卢星
Owner FOSHAN SENANG BIO TECH CO LTD
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