Innovation and customer focus has enabled Miyoshi America, Inc. to continually develop new, patented surface treatments including amino acid, lecithin, metal soap, and hybrid treatments. Surface treated pigments and mineral substrates provide improved dispersibility in oil, enhanced feel, hydrophobicity, increased skin adhesion and/or long wear. Hybrid treatments such as SA-S (dimethicone/methicone) and ACT (amino acid, metal soap, silane) offer the functionalities of multiple treatments in a single product. We can customize surface treatments, oil coatings and even use a specified pigment to meet customers’ needs.

ACT Hybrid Surface Treatment

ACT treatment is a hybrid surface treatment consisting of vegetable derived lipoamino acid (NAI), fatty acid metal soap (MT) and silane. Each component of ACT treatment provides unique properties and when combined together, provide synergies that make ACT treatment one of the most effective treatments developed to date. Each component of ACT treatment provides unique properties. Vegetable amino acid imparts an enhanced feel – a moist and dewy feel during application.
Metal soap provides good skin adhesion. It also improves press-ability in pressed powders leading to stronger cakes. Silane provides very strong hydrophobicity.

AHD Vegetable Amino Acid Surface Treatment

AHD treatment is a vegetable derived amino acid surface treatment that is chemically bonded to the pigment. This enables usage in a variety of color cosmetic formulations whether Dry, Wet-Dry, or Liquid. This surface treatment originates from surfactants that are characterized by their mildness and good skin adhesion.
In cosmetic formulations this treatment imparts a moist, dewy feel on the skin, and provide longer wear.

NAI/NAID Vegetable Amino Acid Surface Treatment

NAID treatment is an improved version of the original vegetable amino acid treatment, NAI. Compatibility of NAI-treated pigments in silicone-based systems has been amply demonstrated by their usage in a number of commercially available W/S liquid foundations. NAID provides the benefits of the NAI treatment – long wear and moist, dewy feel while being much easier to disperse in oils and silicones.

LT/VLT Lecithin Surface Treatment

Miyoshi Kasei’s original patent for Lecithin Treatment was based solely on egg yolk lecithin derived from chicken eggs.  When cosmetic companies wanted a plant derived lecithin treatment, Miyoshi America, Inc. was able to find a hydrogenated lecithin derived from Soy Beans, without the drawbacks of previously available vegetable derived lecithin treatments. Hydrogenated egg yolk lecithin shows the same effect of emulsification and moisturizing as natural, unhydrogenated yolk oil.

MT Metal Soap Surface Treatment

MT treatment utilizes a treatment process that bonds the surface of pigments and substrates with a thin film of aluminum myristate. The percentage of metal soap bonded on the pigment or substrate surface is significantly lower than percentage of metal soap actually used during the treatment process. This delivery of a thin, uniformly coated treatment provides the benefits of metal soap treatment without concerns the negative impact of excessive treatment and pigment agglomeration.

SAT Bonded Dimethicone Surface Treatment

SAT treatment is the Ultimate Silicone treatment for application to cosmetic pigments and substrates and is composed of Bonded Dimethicone. The silicone used in SAT Treatment is not cross-linked so the pigment particles do not agglomerate and pigment particle size is unaffected. This results in a good dispersion and pigment color development is not weakened. Its strong hydrophobicity leads to good skin adhesion and long wear. Moreover, there is no grab or drag once formulated. In fact, SAT treated materials have a very smooth and wet feel.

DHL Surface Treatments

DHL treatment has been developed to answer cosmetic chemists’ request for surface treated pigments that do not cause unwanted viscosity build-up in liquid systems. Miyoshi America, Inc.’s DHL Treatment will allow chemists to use more treated pigments in formulations without affecting the flow characteristics. This is advantageous during the bulk filling process and minimizes the need for viscosity adjustments. DHL Treatment utilizes a higher percentage our patented Bonded Dimethicone with an improved proprietary treatment process.

ST-PEG/MOD Bonded Dimethicone/Ester Surface Treatment

ST-PEG/MOD treatment takes conventional surface treatment technology one step further. The combination of Glyceryl Rosinate, an excellent water-resistant film former, and Bonded Dimethicone results in a surface treatment that imparts many benefits when treated to pigments and mineral substrates versus conventional silicone-based treatments.

STNP Methicone (Non-Paraffin) Surface Treatment

Silicone (Without Mineral Oil) treated pigments and substrates exhibit the strongest hydrophobicity properties obtainable. There is very little color change between before application and after application utilizing a formulation containing silicone treated pigments. The same shade is maintained because the applied make-up does not get wet from perspiration. Formulations containing Silicone (Without Mineral Oil) are 1) Easy to mix with oily material because of good dispersibility, 2) Normally less oil is required in a formulation because less oil is absorbed by the silicone treated pigment. 3) Very “soft” in feeling, exhibiting good adhesion and affinity to the skin 4) Reduce the “drag” of the formula, much improving the formula’s spreadability on to the skin.

ST Methicone Surface Treatment

The methicone treatment was one the first surface treatments developed specifically for the cosmetics industry.
It provides the strongest hydrophobicity and long wear properties in anhydrous, powder and two-way foundation formulations.

SAS Hybrid Silicone Surface Treatment

SAS Surface Treatment utilizes a blend of two proven surface treatments for pigments and substrates used in color cosmetics: 1) Bonded Dimethicone: A patented surface treatment whereby Dimethicone is chemically bonded to the substrate/pigment. Unlike other Silicone surface treatments, pigments treated with Bonded Dimethicone do not agglomerate; pigment particle size is therefore unaffected, enabling good dispersibility and maintenance of pigment color strength. Bonded Dimethicone treated substrates have a very smooth, silky feel, and provide good skin adhesion and longer wear. 2) Methicone: A special Methyl Hydrogen Polysiloxane with half of the hydrogen potential of other Methicones. It imparts strong hydrophobicity to pigments and substrates.

Markets Served
Color Cosmetics
Skin Care
Speciality Literature
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