| 摘要 |
PROBLEM TO BE SOLVED: To provide an application method of a wrapping net which maintains the merits of wrapping with a wrapping net or wrapping film effective for transportation and storage and allows for easy removal of the wrapping net due to sufficient biodegradation of the wrapping net in a roll bale during storage, having less impact on domestic animals even when residues of the wrapping net are commingled with feeding stuff.SOLUTION: A wrapping net formed from yarns of a biodegradable plastic and a wrapping film formed from a plastic different from the biodegradable plastic are prepared. Microorganisms or enzymes which accelerate biodegradation of the biodegradable plastic are attached to the surface of the wrapping film. Subsequently a roll bale for feeding stuff is covered with the wrapping net and then the wrapping net is further covered with the wrapping film. Consequently the microorganisms or the enzymes act on the biodegradation of wrapping net, accelerating the degradation time of the wrapping net. |
