De' An Zhuli Intelligent Control Environmental Protection Technology Co., Ltd uses safe, non-toxic and degradable material to make eco-friendly tableware. Many customers wondering how does sugarcane come from, and here is the process of it.
The process begins with the preparation of sugarcane bagasse, which is the main raw material for pulping. Bagasse is a byproduct of the sugar industry, typically generated during sugar production.
Sugarcane bagasse can be stored using either the wet or dry method. Wet storage involves piling the bagasse while maintaining a certain level of moisture, which is beneficial for subsequent processing.
Before pulping, it is necessary to remove non-fibrous components such as the pith from the sugarcane bagasse. Dehulling can be carried out using semi-wet, dry, or wet methods.
Cooking involves chemically treating the sugarcane bagasse to soften its fibers and partially decompose them for further processing. Cooking is typically done using either the alkali method or the sulfate method, with the alkali method being more suitable for sugarcane bagasse due to its lower lignin content and more porous structure compared to wood materials.
After cooking, the sugarcane bagasse needs to be washed to separate the fibers from the spent liquid, a process that generates a large amount of black liquor, which is the waste liquid from pulping.
The pulp after washing must go through screening and purification processes to remove undecomposed impurities and non-fibrous materials, thereby improving the quality of the pulp.
To enhance the brightness of the pulp, a bleaching process is usually required. Bleaching can involve the use of chemicals such as halides, hypochlorites, or chlorine dioxide, or it can be done using chlorine-free or totally chlorine-free (TCF) methods.
The black liquor produced during the cooking process contains a significant amount of alkaline substances, which can be recovered and reused through an alkali recovery process, reducing environmental pollution.
The pulp treated through the above steps can be used for papermaking, which involves using a paper machine to form the pulp into paper.
The products made from papermaking require further processing, such as cutting and calendering, to meet the needs of different applications.
