ヤマグチマイカ List of Products and Services

This document is the "2021 CSR Report" of Yamaguchi Maika Co., Ltd. Our company is steadily advancing its CSR activities step by step, and we hereby report on the results, current status, and future initiatives. We invite you to read it. [Contents (partial)] ■1. Top Message ■2. Management Philosophy, Quality Policy, Environmental Policy, Responsible Mineral Procurement Policy ■3. Company Overview ■4. History ■5. Our Affiliations Related to CSR *For more details, please refer to the PDF document or feel free to contact us.

• Organic Natural Materials

"GFA-50/NCL-322" is a mica powder that combines the selection of mica ore as raw material, a unique wet grinding method, advanced classification technology, and calcination treatment. It skillfully controls properties such as slip, adhesion, glossiness, and transparency. It has received high praise from customers for its reliable quality. Additionally, it stimulates the sensibility and imagination of engineers involved in cosmetic development, enabling the creation of new ideas and product concepts. 【Features】 ■ GFA-50/NCL-322 - Average particle size (μm): 50/23 - Whiteness: 76/72 - Bulk density (g/ml): 0.34/0.15 - Aspect ratio (reference value): -/80 - Glossiness (GU): 23/12 - Remarks: Suitable for point makeup products due to strong glossiness and luster / Natural champagne gold color *For more details, please refer to the PDF document or feel free to contact us.

• others

We would like to introduce our porous silica gel, 'PSG-05WA5'. The WA surface treatment is a unique surface treatment developed by Yamaguchi Mica. By treating inorganic pigments with amodimethicone, a distinctive feel is achieved. Additionally, by processing spherical silica, it can also be utilized as an alternative to microplastic beads. 【Features】 ■ Skin compatibility ■ Spreadability ■ Water repellency ■ Molding properties *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

Yamaguchi Maika Co., Ltd. not only manufactures powders but also conducts surface treatment of powders as applied products using its own facilities. Surface treatment further enhances powder performance or manifests new functions, making it possible to increase the product value for our customers. 【Powder Surface Treatment for Cosmetics】 - Silicone Treatment 【Powder Surface Treatment for Plastics and Coatings】 - Silane Coupling Treatment We are ready to respond to your needs regarding the treatment of inorganic powders, primarily mica, talc, and sericite, not limited to our own powder products, using our technology and know-how, so please feel free to consult with us! *For more details, please do not hesitate to contact us.

• Other surface treatment equipment

Yamaguchi Maika Co., Ltd.'s "Mikaretto" is an original product made by granulating mica powder into pellet form using a small amount of resin binder as an adhesive. [Features] - The bulk density increases to approximately 0.7g/ml, improving the efficiency of feeding into the extruder. - High-fill compounds for plastics (resins) are easily achievable. - Almost no mica dust, preventing deterioration of the working environment due to dust. Custom grades tailored to customer requests are also available! *Please feel free to contact us for more details.

• others
• Organic Natural Materials

Yamaguchi Maika Co., Ltd.'s "Maika Plate" is a heat-resistant electrical insulating material for electric heating devices, electronic circuits, and semiconductor devices. 【Features】 ■ Transparent and resistant to cracking ■ Heat-resistant ■ The crystal surface peeled from natural mica sheets can also be used as a substrate for atomic force microscopy observation. The Maika Plate includes natural mica sheets, natural mica substrates, and laminated mica sheets. *For more details, please feel free to contact us.

• Organic Natural Materials
• others

Yamaguchi Maika's "Cosmetic Talc Powder" has successfully developed a product with a cream-like texture by applying its own wet grinding technology and know-how to the manufacturing of talc powder for cosmetics, which differs from conventional talc powders. [Features] - Cream-like texture - High surface smoothness - Easy powder handling in aqueous systems - Suitable as a cosmetic ingredient for foundations and eyeshadows *For more details, please feel free to contact us.

• Organic Natural Materials
• others

Mica is a type of layered silicate mineral that has the characteristic of being very thin and easily peelable. It is thermally and chemically stable, and also has excellent electrical insulation properties. Additionally, it is elastic and does not break even when peeled thinly in the plane direction, resulting in a flaky powder with a high aspect ratio when crushed. Yamagucci Mica provides mica powder products as functional materials to enhance the product value for various industrial fields such as plastics, paints, and rubber. 【Features】 ○ Yamaguchi-style wet grinding grade → Achieves high smoothness and particle shape with high aspect ratio in flakes ○ Media mill wet grinding grade → Optimal for mass production using media mill grinding machines ○ Dry grinding grade → Relatively inexpensive with no manufacturing processes such as dehydration and drying ○ Hybrid grinding fine particle grade → Ideal for applications requiring good appearance and addition in thin films For more details, please contact us or download the catalog.

• Organic Natural Materials