| 摘要 |
PURPOSE:To obtain the safe and effective insect-proofing and insecticidal material containing fine radioactive powder and suitable for producing carpets, etc. CONSTITUTION:This insect-proofing and insecticidal fiber or synthetic resin material is characterized by integrally kneading or coating a fiber material or synthetic resin with fine radioactive powder. The technique is applied to the piles, primary substrate and backing material of carpet, and the insect- proofing material is safe, and keeps the high effect because of using the fine radioactive resin material. The insect-proofing material further has good vashability. |
