| 摘要 |
<p>This invention relates to a structure of spread sand for disposing of excrement of pet and a method of making such sand, in which some used part of spread sand can be identified by solidification of said part into a ball-like shape owing to the excrement and by coloring of said part by water content of the excrement. The sand is constituted of clay containing fine grains of silica sand as a major ingredient, zeolite powder, water-absorbent, and methylene blue powder to be colored by water content of excrement, which are all mixed, kneaded, and then solidified. The sand mixture thus solidified is used as a core and is coated with a solidification accelerator to solidify spread sand soiled by excrement into a ball-like shape as well as is impregnated with a colorant.</p> |
