Cosmetic multi-layered wiper
First Claim
Patent Images
1. A method comprising:
- heating a first material to about a first temperature;
heating a second material to about a second temperature;
injection molding, subsequent to the heating of the first material, a cylindrical-shaped retention portion formed of the first material;
cooling the cylindrical-shaped retention portion formed of the first material;
injection molding onto the cylindrical-shaped retention portion formed of the first material, subsequent to the cooling of the cylindrical-shaped retention portion formed of the first material, a dome-shaped wiping portion formed of the second material, the dome-shaped wiping portion formed of the second material comprising a wiping face arranged on an inside portion of the bottom of the dome-shaped wiping portion for removing a product from a surface of an applicator, wherein the wiping face comprises one single continuous curvilinear shaped portion of the dome-shaped wiping portion; and
cutting vertical slits through at least a portion of the wiping face.
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Abstract
A multi-layered wiper for removing a product (e.g., a cosmetic product) from an applicator. The multi-layered wiper comprises a wiping body having a wiping face, an acute wiping tip, and vertical slits, formed of a first material, over-molded to a retention body, formed of another material harder than the first material. By virtue of having a multi-layered wiper comprising a wiping body, formed of a first material, over-molded to a retention body, formed of another material, harder than the first material, the multi-layered wiper is capable of providing exceptional installation characteristics, while simultaneously providing exceptional wiping characteristics.
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Citations
20 Claims
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1. A method comprising:
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heating a first material to about a first temperature; heating a second material to about a second temperature; injection molding, subsequent to the heating of the first material, a cylindrical-shaped retention portion formed of the first material; cooling the cylindrical-shaped retention portion formed of the first material; injection molding onto the cylindrical-shaped retention portion formed of the first material, subsequent to the cooling of the cylindrical-shaped retention portion formed of the first material, a dome-shaped wiping portion formed of the second material, the dome-shaped wiping portion formed of the second material comprising a wiping face arranged on an inside portion of the bottom of the dome-shaped wiping portion for removing a product from a surface of an applicator, wherein the wiping face comprises one single continuous curvilinear shaped portion of the dome-shaped wiping portion; and cutting vertical slits through at least a portion of the wiping face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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molding a wiper having a wiping body, the wiping body comprising an acute wiping tip arranged around a circumference of an opening of the wiping body; removing a portion of a product from an end of an applicator via passing the applicator through the wiper; measuring an amount of the product remaining on the end of the applicator after passing the applicator through the wiper; determining a stiffness of the wiper; determining a depth of slits to cut in the wiper based at least in part on the determined stiffness and the amount of the product remaining on the end of the applicator after passing the applicator through the wiper; and cutting slits in the wiping body having the determined depth. - View Dependent Claims (11, 12, 13)
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14. A method comprising:
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determining a stiffness of a wiper based at least in part on a wiping test; determining a depth of slits to cut in the wiper based at least in part on the determined stiffness; and cutting slits in the wiping body having the determined depth. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification