| 摘要 |
A chewing toy for dogs and a process for its preparation, wherein a nylon piece, preferably having the shape of a bone, has an impregnated layer of caramelized sugar adjacent but below its surface to impart a dark brown color and a flavor to the near-surface region of the toy. The chewing toy is prepared by placing a piece of water-absorbent nylon into an aqueous solution of caramelized sugar at a temperature of about 250 DEG C. and an applied pressure of about 30 psi for a period of at least about 8 hours, so that the aqueous solution penetrates into the surface of the piece to impart the dark brown color to the near-surface region of the piece. The coloring and sweet taste provide an initial appeal to the animal, increasing its initial acceptance of the toy. The heat treatment also anneals the as-formed nylon to impart greater strength, reduce brittleness, and improve its resistance to shattering. The toy may also be treated with a second appeal-enhancing agent, such as a ham scent and flavor, to provide a further appeal to the animal. |
