A method for preparing recycled corrugated base paper using rosin-modified starch surface sizing

A technology of surface sizing and rosin modification, applied in the field of corrugated paper, can solve the problems of limited waterproof performance and limited application, and achieve the effects of low cost, good quality and easy process control.

Active Publication Date: 2019-02-22
义乌市申图包装有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, there are many kinds of surface sizing agents, and the modified AKD is mainly used in a large amount. Surface sizing agents have the advantages of obvious effect, less dosage, and low cost. There is a certain demand for strength, the modified AKD has a certain aging period, and the waterproof performance is limited, which limits its application in the field of packaging paper

Method used

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Examples

Experimental program
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Embodiment Construction

[0021] A method for preparing recycled corrugated base paper utilizing rosin-modified starch surface sizing, comprising the following specific steps:

[0022] (1) Cut the waste corrugated cardboard into small pieces and soak in clean water for 50 minutes, then take it out and soak it in a sodium hydroxide solution with a concentration of 10wt% for 60 minutes, take it out, wash it with clean water and put it in a pulper for beating , and then use a refiner to filter until the water content is 60%, then put it into a container and seal it, put it in a water bath, heat it to 70°C, and treat it for 30 minutes before use;

[0023] (2) After crushing the cottonseed hulls, soak them in twice the amount of 10wt% sodium hydroxide solution at room temperature for 90 minutes, wash them twice with clean water, and filter them. Mesh sieve to obtain cottonseed hull powder for use;

[0024] (3) Mix 80g of waste paper pulp with 80g of cottonseed hull powder, use a beater for beating, control...

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PUM

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Abstract

The invention discloses a method for preparing regenerated corrugated paper base paper through rosin modified starch surface sizing. The corrugated paper base paper produced through the preparation method can be prepared into various corrugated paperboards and corrugated cartons through an adhesive, has good moisture-proof and waterproof effects, is long in water flow permeation time, has certain compressive strength, and is good in quality and not easy to break; recycled waste paper, cottonseed hulls and other substances serve as raw materials, so that the cost is low, energy conservation and consumption reduction are achieved, waste is utilized, wood pulp fiber resources are saved, and the process is convenient to control.

Description

technical field [0001] The invention relates to the technical field of corrugated paper, in particular to a method for preparing recycled corrugated base paper using rosin-modified starch for surface sizing and a preparation method thereof. Background technique [0002] In recent years, the development of online shopping has driven the development of logistics, printing, packaging and other industries, especially packaging paper and corrugated packaging boxes. Certain requirements. This requires higher and higher requirements for the surface sizing of packaging paper and corrugated paper during the preparation process. Paper surface sizing has become the most common and important production process in paper production. Among them, there are many kinds of surface sizing agents, and the modified AKD is mainly used in a large amount. Surface sizing agents have the advantages of obvious effect, less dosage, and low cost. There is a certain demand for strength, and the modified...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/32D21B1/34D21H17/26D21H17/60D21H19/20D21H19/14B31F1/20
CPCB31F1/20D21B1/32D21B1/345D21H17/26D21H17/60D21H19/14D21H19/20Y02W30/64
Inventor 毕全中
Owner 义乌市申图包装有限公司
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