| 摘要 |
PURPOSE: A toothbrush having a flexible block head in an arch shape is provided, which varies the shape of brush under pressure of its application to adapt to the shape of tooth. CONSTITUTION: A toothbrush comprises: a flexible block head in an arch shape made of low hardness rubber, EPDM(Ethylene Propylene Diene Monomer) rubber or silicon; the bristle tufts made of PBT(Poly Butylene Terephtalate), EPDM rubber, or silicon rubber; and a toothbrush holder made of PP(Poly Propylene), PETG(Poly Etylene Terephtalate), AS(acrylo nitrilstylene), CP(Cellulose Propionate), and ABS(acrylonitrile butadiene styrene).
|
