Stone Paper: Threats, Opportunities and Challenges

Document Type : compile

Authors

1 Wood chemistry, pulp and papermaking research group/ RIFR

2 Faculty of Natural Resources

Abstract

The production of stone paper as a product with unique characteristics such as waterproofness, resistance to bursting and appropriate rupture, as well as due to the reduction of water consumption, energy and greenhouse gas emissions during the production process, is expanding. In this article, the characteristics, production process, applications, development process and general comparison of stone paper with paper are reviewed. Due to its advantages such as very low water absorption, good printability and lower cost, this product has been proposed as a competitive product with conventional cellulose papers in the packaging, printing and publishing industries, especially labels. However, due to the different structure of paper, mixing with it can cause problems in the normal paper recycling cycle. Higher density, lower tensile strength, degradability under sunlight and ultraviolet light and the presence of polyethylene, are the main disadvantages of stone paper, which poses challenges in the application of this product. Paper stone recycling and using biodegradable polymers and UV-resistant additives and arrangements to separate it from recycled paper, will provides the possibility to replace it with some more paper products. Knowing the appropriate applications of this new product and the target markets, considering the reasonable price of its raw materials and availability in Iran and unique features of this product seems essential. The justification and success of new investments in the production of stone papers from the economic, technical, marketing and environmental terms is due to the knowledge that it reduces the risk of wasting the country's capital and problems in the paper recycling industry.

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