| 摘要 |
An annular fishing sinker is formed of environmentally compatible materials to dissolve in variable predetermined times in a water environment. The sinker is formed of sand in a matrix of gelatin, particulated cellulosic material that swells in water and unbleached wheat flour with enough water to form a moldable plastic mixture that upon drying is coherent and configurationally sustaining. The components may be varied in relative quantity to provide sinkers that dissolve in from less than one minute to more than twenty minutes. The sinker is attached to a fishing line by tying in such fashion that a knot will not be left in a supporting line when the sinker dissolves. A process is disclosed for forming the sinker by molding with subsequent drying.
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