The Modern Development of Molded Pulp

Pulp is a lignocellulosic fibrous material prepared by chemically or mechanically separating cellulose fibers from wood, fiber crops or waste paper. Among them, wood provides about ninety percent of the basis for pulp production, while about ten percent originates from annual plants. The main applications for pulp are paper and board production. The furnish of pulps used depends on the quality on the finished paper. Important quality parameters are wood furnish, brightness, viscosity, extractives, dirt count and strength. Chemical pulps are used for making nanocellulose while the special pulp grade like molded pulp is used for industrial packaging.



In early years, as the boom of paper pulp industry, major environmental impacts of producing wood pulp have appeared which mainly come from its impact on forest sources and from its waste products. The impact of logging to provide the raw material for wood pulp is an area of intense debate. Modern logging practices, using forest management seek to provide a reliable, renewable source of raw materials for pulp mills. To meet the need of the times, some people and groups advocate using field crop fiber or agricultural residues instead of wood fiber as being more sustainable. Environmentally friendly packaging ways like pulped bagasse packaging has thrived.

There is enough straw to meet much of North America’s book, magazine, catalogue and copy paper needs. Agricultural-based paper is a guaranteed way to reduce the stress of paper production on old growth and endangered forests. What's more, some agricultural residue pulps take less time to cook than wood pulps. That means agricultural-based paper uses less energy, less water and fewer chemicals. Pulp made from wheat and flax straw has half the ecological footprint of pulp made from forests.

However, wood is also a renewable resource, with about ninety percent of pulp coming from plantations or reforested areas. Non-wood fiber sources account for about five to ten percent of global pulp production, for a variety of reasons, includes seasonal availability, problems with chemical recovery, brightness of the pulp, etc. Non-wood pulp processing requires a high use of water and energy. Nonwovens are in some applications alternatives to paper made from wood pulp, like filter paper or tea bags.

Shenling Environmentally Friendly Packing Materials Co., Ltd was established in 2005, the entire capital holding company of Guandong Shenling Group, is a leading Chinese manufacturer specializing in researching & developing, manufacturing, and selling biodegradable eco-friendly packaging made from natural annual plant fiber such as sugarcane bagasse, bamboo and etc. Their main product series are disposable eco-friendly paper pulp tableware; three dimension eco-friendly wall paper, wet-pressed industrial packaging, and etc.