| 摘要 |
GROUND COVER SHEET FORMED OF VARIABLE BIODEGRADABLE CELLULOSIC FIBER COMPOSITION AND METHOD OF MAKING SAME A biodegradable ground cover sheet formed from a mulch which comprised of cellulosic fibers in the amount of 25-95% and in admixture with 10-40% residual sludge from a paper making process and 1040% peat moss. Additives are also added to the mixture in the amounts of 5-25% and these are formed from a mixture of ingredients including styrene butadiene base latex and cellophane or colophane. A mineral compound in the amount of 10-50% is also added to the mixture and is selected from clay, calcium carbonate or talc. A predetermined quantity of selected biodegradable additives are also added. The mixture has a preselected quantity of the abovementioned compounds depending on its intended use and desired biodegradable time. The sheet outer surfaces may also be coated with a wax to adjust the biodegradable time.
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