TAILORING SURFACES FOR COLOR COSMETICS

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Modifying Surface chemistry of pigments and powders provides robust, permanently modified behavior, expanding formulation latitude in personal care. Gelest has the unique ability to synthesize specialty silanes and silicones and employ these materials as reactive surface treatments.

The functions of surface treatment in cosmetic formulations include:

  • Improvement of skin feel
  • Improvement in wetting
  • Uniform color development
  • Maximization of attainable pigment load
  • Reduction in the amount of energy and time required for dispersion
  • Passivation of the pigment surface to reduce physical and chemical interaction with the vehicle

These siliceous surface treatments can show:

  • Lubricious Tactile Effect
  • Precise Surface Energy Control
  • Water Repellency – Hydrophobic
  • Water Dispersibility – Hydrophilic
  • Dispersion and Rheological Control
  • Stability throughout the range of physiological pH
  • Oil and Water Repellency – Oleophobic and Hydrophobic
  • Lipophilicity – Stable Interaction with siloxane, organic and aqueous phases filename

Recommended Applications:

  • Pencils
  • Eyeliners
  • Mascaras
  • Sunscreens
  • Foundations
  • Loose Powders
  • Pressed Powders
  • Powdercream Products

AS TREATMENT (POLYCAPRYLYLSILSESQUIOXANE)

AS treated pigments and fillers are coated with an alkyl functional silsesquioxane which provides a hydrophobic coating that increases the ease of particle dispersion in natural and synthetic fluids and helps to stabilize particles in emulsion systems. The AS treatment is polymer based to allow for registration as a polymeric material.

WIA-ASA

Gelest Titanium Dioxide AS

RIA-ASA

Gelest Red Iron Oxide AS

BIA-ASA

Gelest Black Iron Oxide AS

SAA-ASA

Gelest Sericite AS

TA7-ASA

Gelest Talc AS

YIA-ASA

Gelest Yellow Iron Oxide AS

SS TREATMENT (STEARYL TRIETHOXYSILANE)

SS surface modification combines the lubricious feel of oleaginous treatments with physical and chemical stability of reacted coating.

WIA-SSA

Gelest Titanium Dioxide SS

RIA-SSA

Gelest Red Iron Oxide SS

BIA-SSA

Gelest Black Iron Oxide SS

SAA-SSA

Gelest Sericite SS

TA7-SSA

Gelest Talc SS

GIA-SSA

Gelest Chromium Oxide Green SS

LIA-SSA

Gelest Ultramarine Blue SS

PDA-SSA

Gelest Soft Focus Gold Pearl SS

SAB-SSA

Gelest Seribrite™ SS

YIA-SSA

Gelest Yellow Iron Oxide SS

TC TREATMENT (TRIETHOXYCAPRYLYLSILANE)

TC pigments and fillers are coated with an alkyl silane which provides a very hydrophobic coating that increases the ease of particle dispersion in natural and synthetic fluids and helps to stabilize particles in emulsion systems.

WIA-TCA

Gelest Titanium Dioxide TC

RIA-TCA

Gelest Red Iron Oxide TC

BIA-TCA

Gelest Black Iron Oxide TC

SAA-TCA

Gelest Sericite TC

TA7-TCA

Gelest Talc TC

YIA-TCA

Gelest Yellow Iron Oxide TC

HYDROSPERSE TREATMENT (DISODIUM CARBOXYETHYL SILICONATE)

Gelest Hydrosperse surface modification creates an anionic, hydrophilic reacted coating that provides instant dispersion in aqueous media without high shear agitation.

WIA-HSA

Gelest Titanium Dioxide HS

RIA-HSA

Gelest Red Iron Oxide HS

BIA-HSA

Gelest Black Iron Oxide HS

LIA-HSA

Gelest Ultramarine Blue HS

TA7-HSA

Gelest Talc HS

GIA-HSA

Gelest Chromium Oxide Green HS

YIA-HSA

Gelest Yellow Iron Oxide HS

SAA-HSA

Gelest Sericite HS

ML SURFACE MODIFICATION (DIMETHICONE PEG-3 LAURATE)

ML pigments and fillers are coated with a combination of alkyl and polyethylene glycol functional groups that are balanced to maximize wetting in non-polar oils.

WIA-MLA

Gelest Titanium Dioxide ML

RIA-MLA

Gelest Red Iron Oxide ML

BIA-MLA

Gelest Black Iron Oxide ML

LIA-MLA

GELEST ULTRAMARINE BLUE ML

SAA-MLA

Gelest Sericite ML

TA7-MLA

Gelest Talc ML

YIA-MLA

Gelest Yellow Iron Oxide ML

SR TREATMENT (TRIMETHYLSILOXYSILICATE)

SR pigments and fillers are coated with a hydroxyl terminated silsesquioxane network that improves adhesion to skin and hair. Because SR pigments are hydrophobic, yet are not overly sensitive to oils, including sebum, they are particularly suited for use in eye makeup formulation.

WIA-SRA

Gelest Titanium Dioxide SR

RIA-SRA

Gelest Red Iron Oxide SR

BIA-SRA

Gelest Black Iron Oxide SR

LIA-SRA

Gelest Ultramarine Blue SR

SAA-SRA

Gelest Sericite SR

TA7-SRA

Gelest Talc SR

GIA-SRA

Gelest Chromium Oxide Green SR

YIA-SRA

Gelest Yellow Iron Oxide SR

DE TREATMENT (DIETHYLSILOXANE)

DE treated pigments and fillers offer faster dispersion, improved spreadability, improved Color Development when compared to methicone treatments. This global approved surface treatment decreases oil absorption allowing for ease of dispersion. Pigments with this treatment are recommended for use in lipsticks, BB creams, pressed powders, liquid foundations, and cream to powder/hot pours.

WIA-DEA

Gelest Titanium Dioxide DE

RIA-DEA

Gelest Red Iron Oxide DE

BIA-DEA

Gelest Black Iron Oxide DE

YIA-DEA

Gelest Yellow Iron Oxide DE

SAA-DEA

Gelest Sericite DE

TA7-DEA

Gelest Talc DE

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