| 摘要 |
FIELD: brush production, in particular, manufacture of toothbrush with flexible neck part. ^ SUBSTANCE: brush has integral body composed of handle and head portion arranged at one end of handle. Brush body is made from mixture of first polymer and second polymer of hardness lower than that of first polymer, with ratio of first and second polymers being from about 95:5 to about 30:70. Shore hardness of second polymer is less that that of first polymer and is from about 25 to about 85. ^ EFFECT: simplified construction and convenient use. ^ 10 cl, 10 dwg, 1 tbl |
