| 主权项 |
1. A pretreatment cup comprising:
a base comprising an exterior base surface; a wall comprising an exterior wall surface; and an opening circumscribed by a rim, wherein the opening is at least partially opposite the base; wherein the exterior base surface is connected to the exterior wall surface at an exterior periphery surface;wherein a surface selected from the group consisting of: the exterior base surface, the exterior wall surface, the exterior periphery surface, and combinations thereof, comprises a scrubbing region,characterised in that the scrubbing region comprises at least two elongated protrusions, spaced apart by a distance between the elongated protrusions, the elongated protrusions having a length, width and height, wherein the length to width ratio is greater than 2, and the distance between the elongated protrusions is less than the height of the protrusions, at the position where the distance between the elongated protrusions is a minimum, wherein the pretreatment cup further comprises a spreading region, the spreading region comprising spreading protrusions which are oriented:
radially, concentrically, and combinations thereof, wherein the spreading protrusions are made from a material having a hardness, as measured on the Rockwell scale (ISO 2039-2), of from about 50 to about 150. |
