Natural ester, wax or oil treated pigment, process for production thereof, and cosmetic made therewith

Abstract

The present invention provides compositions for natural cosmetic products and, more particularly, to natural ester, wax or oil treated pigments, the products of such treated pigments and cosmetic products incorporating pigments treated with natural ingredients.

1 . A process for making a coated pigment comprising;
 providing a pigment;   blending the pigment with a natural surface modifying agent to produce a blend;   heating the blend to between about 80° C. to about 150° C.;   allowing the blend to cool to approximately 18° C. whereby said pigment is directly coated with the agent producing a hydrophobic coated pigment, said agent comprising a jojoba ester.   
     
     
         2 . The process of  claim 1 , wherein the blend is heated to between about 100° C. to about 110° C. 
     
     
         3 . The process of  claim 1 , further comprising milling the pigment. 
     
     
         4 . The process of  claim 1  wherein the mean particle size of the pigment lies substantially within the range of 10 nm to 200 microns. 
     
     
         5 . The process of  claim 1 , wherein the pigment consists of one or more pigments selected from the group consisting of minerals such as talc, mica and sericite; metal oxides such as titanium dioxide, zinc oxide and iron oxides; thermal plastic powders; organic pigments such as starch and cellulose, organic lakes, combinations of any of the foregoing, and composites of one or more of the foregoing. 
     
     
         6 . The process of  claim 5 , wherein the pigment comprises metal oxides, and said metal oxides are selected from the group consisting of sunscreen grades of titanium dioxide and zinc oxide, said metal oxide having a mean particle size between 10 nm and 200 nm. 
     
     
         7 . The process of  claim 5  wherein the pigment comprises metal oxides and said metal oxides are pigmentary grades of metal oxide. 
     
     
         8 . The process of  claim 5 , wherein the pigment comprises a pearlescent pigment having a mean particle size of 5-200 microns. 
     
     
         9 . The process of  claim 6 , wherein the pigment comprises zinc oxide with a mean primary particle size of roughly about 15 nm to 300 nm. 
     
     
         10 . The process of  claim 6 , wherein the pigment comprises titanium dioxide and has a mean primary particle size of roughly about 15 nm. 
     
     
         11 . The process of  claim 5 , wherein the pigment comprises silica beads with a mean particle size of 2-40 microns. 
     
     
         12 . The process of  claim 1 , further comprising formulating the composition into a cosmetic composition or sunscreen product, said cosmetic composition or sunscreen product selected from the group consisting of lipstick, loose or pressed powder, foundation, cream, lotion or blush. 
     
     
         13 . The process of  claim 5 , further comprising formulating the composition into a cosmetic composition or sunscreen product, said cosmetic composition or sunscreen product selected from the group consisting of lipstick, loose or pressed powder, foundation, cream, lotion or blush. 
     
     
         14 . The process of  claim 12  wherein at least one pigment is selected from the group consisting of titanium dioxide, yellow iron oxide, red iron oxide, black iron oxide, mica and silica. 
     
     
         15 . The process of  claim 14 , wherein the cosmetic composition is an oil in water liquid make-up having between about 0.5 wt. % to about 15 wt. % of the pigment, wherein the uncoated is selected from the group consisting of titanium dioxide, yellow iron oxide red iron oxide, and black iron oxide. 
     
     
         16 . The process of  claim 15 , wherein the oil in water liquid make-up has between about 1 wt. % to about 7 wt. % of the hydrophobic pigment. 
     
     
         17 . The process of  claim 16 , wherein the oil in water liquid make-up has about 4.5 wt. % of the hydrophobic pigment. 
     
     
         18 . The process of  claim 14 , wherein the cosmetic composition is a hot pour creating a liquid compact foundation having between about 15% to about 75% of the hydrophobic pigment wherein the untreated pigment is selected from the group consisting of titanium dioxide, red iron oxide, yellow iron oxide, black yellow oxide, mica and silica beads. 
     
     
         19 . The process of  claim 18 , wherein the liquid compact foundation comprises between about 25% to about 50% of the hydrophobic pigment. 
     
     
         20 . The process of  claim 19 , wherein the liquid compact foundation comprises about 40% of the hydrophobic pigment. 
     
     
         21 . The process of  claim 14 , wherein the cosmetic composition is a lipstick having between about 0.5% and about 20% of the hydrophobic pigment, wherein the uncoated pigment is an organic lake selected from the group consisting of D&C Red No. 6 Barium Lake, D&C Red No. 7 Calcium Lake and iron oxides. 
     
     
         22 . The process of  claim 21 , wherein the lipstick comprises between about 2% to about 10% of the hydrophobic pigment. 
     
     
         24 . The process of  claim 14 , wherein the cosmetic composition is a pressed powder having between about 30% to about 85% of the hydrophobic pigment, wherein the untreated pigment is selected from the group consisting of sericite, titanium dioxide, yellow iron oxide, red iron oxide and black iron oxide. 
     
     
         25 . The process of  claim 24 , wherein the pressed powder has between about 50% to about 80% of the hydrophobic pigment. 
     
     
         26 . The process of  claim 25 , wherein the pressed powder has roughly about 72% of the hydrophobic pigment. 
     
     
         27 . The process of  claim 14 , wherein the cosmetic composition is an emollient loose powder having between about 0.1% to about 10% of the hydrophobic pigment wherein the uncoated pigment is selected from the group consisting of yellow iron oxide, red iron oxide and black iron oxide. 
     
     
         28 . The process of  claim 27 , wherein the emollient loose powder has between about 0.5% to about 2% of the hydrophobic pigment. 
     
     
         29 . The process of  claim 28 , wherein the emollient loose powder has about 0.78% of the hydrophobic pigment. 
     
     
         30 . The process according to  claim 1 , wherein the agent comprises a mixture of esters produced by the transesterification or interesterification of Simmondsia Chinensis. 
     
     
         31 . The process according to  claim 1  wherein the agent comprises Floraester 70 or substantially the equivalent. 
     
     
         32 . The process according to  claim 1  wherein the iodine value of the agent is less than 2 g/100 g. 
     
     
         33 . The process according to  claim 1  wherein the melting point of the agent is roughly about 66-70° C.