Paint roller cover for multicolor paint, method of uniformly applying multicolor paint and method of quantifying uniformity of paint application
OwnerRuijun ZHAO, Bin CHEN +4inventors
InventorsRuijun ZHAO, Bin CHEN, Hui LIU, Ling LI, Ellen C. KEENE, Daria MONAENKOVA
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Abstract
A paint roller cover for applying multi-color paint is described. The paint roller includes a foam having a surface groove, the foam has an average cell size of 0.3 to 5 mm. The groove have a depth of 1 to 15 millimeters. A method of characterizing the uniformity of paint applied to a surface is also described. Further, a method of uniformly applying multicolor paint is described.
Claims16
A paint roller cover comprising:
- a foam having
- a surface extending between a first edge and a second edge and
- a groove on the surface wherein the groove is characterized in that a portion of the groove is positioned at an angle relative to an edge of the foam and by a groove depth off to 15 millimeters,
- an average cell size in the range of about 0.03 to about 0.5 cm.
The paint roller cover of any of the preceding claims wherein the groove is a helix pattern or a diamond pattern.
A method of characterizing uniformity of a paint applied to a surface, comprising:
- digitizing an image of a painted surface;
- measuring spot counts in a y direction and an x direction of the digitized image;
- calculating the variance of spot counts in the x and y direction;
- determining if the variance of spots counts is greater or less than a target value.
Dependencies are inferred from the claim text.