Latex paper and its preparation method

A technology of latex paper and weight percentage, applied in the field of papermaking, can solve the problems of weak sand planting, poor water resistance, low strength, etc., and achieve the effects of scientific and reasonable operation, good water resistance and firm bonding

Active Publication Date: 2019-04-12
山东华沙新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water-resistant sandpaper currently on the market has disadvantages such as poor water resistance, low strength, brittleness, and weak sanding.

Method used

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  • Latex paper and its preparation method
  • Latex paper and its preparation method
  • Latex paper and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Latex paper raw material proportion described in embodiment 1 is described in table 1, wherein:

[0044] The wet strength agent is polyamide-epichlorohydrin resin, provided by Chengguang Wet Strength Agent.

[0045] The pigment is Iron Oxide Yellow 4910.

[0046] The fiber diameter of polypropylene fiber is 25 microns, and the density is 0.91g / cm 3 , acid and alkali resistance is 95%.

[0047] The acrylic resin is a thermoplastic latex solution with a glass transition temperature Tg value of -28°C provided by Handan Ruistar Latex Technology Co., Ltd. to improve the softness of the latex paper.

[0048] The anti-water agent is AKD new neutral sizing agent provided by Longyuan Chemical Factory, a cationic white emulsion with a solid content of 12.5%.

[0049] The preparation method of latex paper described in embodiment 1 specifically comprises the following steps:

[0050] (1) Wood pulp is hydrolyzed according to the ratio in Example 1, the pulping concentration is 2...

Embodiment 2

[0058] Latex paper raw material proportion described in embodiment 2 is described in table 1, wherein:

[0059] The wet strength agent is polyamide-epichlorohydrin resin, provided by Chengguang Wet Strength Agent.

[0060] The pigment is iron oxide red and black 4330.

[0061] The fiber diameter of polypropylene fiber is 30 microns, and the density is 0.91g / cm 3 , 95% acid and alkali resistance.

[0062] The acrylic resin is a thermoplastic latex solution with a glass transition temperature Tg value of -25°C provided by Handan Ruistar Latex Technology Co., Ltd. to improve the softness of the latex paper.

[0063] The anti-water agent is AKD new neutral sizing agent provided by Longyuan Chemical Factory, a cationic white emulsion with a solid content of 12.5%.

[0064] The preparation method of latex paper described in embodiment 2 specifically comprises the following steps:

[0065] (1) Carry out hydraulic disintegration to wood pulp according to embodiment 2, pulp concentra...

Embodiment 3

[0073] Latex paper raw material proportion described in embodiment 3 is described in table 1, wherein:

[0074] The wet strength agent is polyamide-epichlorohydrin resin, provided by Chengguang Wet Strength Agent.

[0075] The fiber diameter of polypropylene fiber is 35 microns, and the density is 0.91g / cm 3 , 95% acid and alkali resistance.

[0076] The acrylic resin is a thermoplastic latex solution with a glass transition temperature Tg value of -28°C provided by Handan Ruistar Latex Technology Co., Ltd. to improve the softness of the latex paper.

[0077] The anti-water agent is AKD new neutral sizing agent provided by Longyuan Chemical Factory, a cationic white emulsion with a solid content of 12.5%.

[0078] The preparation method of latex paper described in embodiment 3 specifically comprises the following steps:

[0079] (1) Carry out hydraulic disintegration to wood pulp according to the proportioning in embodiment 3, pulp concentration 4%, squeeze into the pulp ta...

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Abstract

Belonging to the technical field of paper making, the invention in particular relates to a latex paper and a preparation method thereof. The latex paper is prepared from the following raw materials byweight percentage: 40%-88% of wood pulp in terms of an absolute dry weight; 5%-20% of polypropylene fiber; 2%-10% of an assistant in pulp; 0%-10% of a pigment; and 5-20% of a surface assistant. The surface assistant is composed of acrylic resin, melamine resin and a water-resistant agent, and the assistant in pulp consists of aluminum sulfate, a water-resistant agent and a wet strength agent. Thelatex paper provided by the invention has the characteristics of good water resistance, high softness, high paper surface flatness, firm bonding of latex paper, a binder and abrasive particles, etc.The abrasive paper formed by processing of the latex paper provided by the invention can meet the requirements of high-quality water-resistant abrasive paper. The preparation method of the latex paperhas strong practicability, and the operation is scientific and reasonable, simple and feasible.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to latex paper and a preparation method thereof. Background technique [0002] Latex paper is widely used as base paper for high-quality water-resistant sandpaper. Latex paper should have good water resistance, plastic deformation, good sand planting, flatness, high dry strength and long-lasting high temperature resistance. Therefore, the preparation of latex paper requires special fiber materials and high-performance latex. The water-resistant sandpaper currently on the market has disadvantages such as poor water resistance, low strength, brittleness, and weak sanding. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a kind of latex paper and preparation method thereof. The latex paper has the characteristics of good color stability, good bonding strength between fiber layers, hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/14D21F11/00D21H17/51D21H17/34D21H21/14D21H21/16B24D11/02
CPCB24D11/02D21F11/00D21H13/14D21H17/34D21H17/51D21H21/14D21H21/16
Inventor 李安东朱洪升贾友兵朱海芝
Owner 山东华沙新材料有限公司
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