Method for making corrugated base paper by rice straw unbleach pulp

Abstract

The invention discloses a method for making corrugated base paper by rice straw unbleach pulp. The method comprises the following steps of: (I) beating the rice straw unbleach pulp, wherein a beating degree is controlled in a range of 28 to 320SR, and a wet weight is 3.2 to 3.8g; (II) beating waste paper pulp, wherein a beating degree is 28 to 300SR, and a wet weight is 2.5 to 2.8g; (III) according to a weight ratio of 7:3, mixing the rice straw unbleach pulp with the waste paper pulp, feeding a mixture to a paper machine and making the mixture into the corrugated base paper. According to the method disclosed by the invention, resource effective recycling of rice straws is achieved. Compared with corrugated base paper made of pure waste paper pulp, the corrugated base paper made by the method has a higher performance index, is obviously improved on the aspects of ring crush compression resistance, a fracture length and a flat compression index, and can be used as high-strength corrugated paper.

Description

technical field [0001] The invention relates to a method for making corrugated base paper from rice straw natural color paste. Background technique [0002] Corrugated cardboard (box) is a green and environment-friendly packaging product recognized all over the world. However, with the increasing awareness of people's environmental protection, coupled with the increasing shortage of global forest resources and the increasing shortage of water and soil resources, the logging of wood required for the production of carton paper is increasingly restricted in many countries, resulting in the corrugated box industry. The source of fiber is severely affected. [0003] According to relevant statistical data from the National Bureau of Statistics, in 2014, the sown area of ​​rice in the country was 30.31 million hectares, and the total rice output was 172 million tons. According to the estimation method of crop yield and straw (1 kg of rice produces about 1.1 kg of straw), it can be...

AI Technical Summary

Problems solved by technology

However, with the increasing awareness of people's environmental protection, coupled with the increasing shortage of global forest resources and the increasing shortage of water and soil resources, the harvesting of wood required for the production of carton paper is increasingly restricted in many countries, resulting in the corrugated box industry. The source of fiber is severely affected

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