大成ファインケミカル List of Products and Services

Using our processing technology, we have finely dispersed "titanium dioxide and zinc" with UV-cutting effects into particle sizes that easily scatter ultraviolet wavelengths while allowing visible light to pass through. This enables the expectation of both high UV-cutting effectiveness and transparency. It can also be used as a UV-cut agent in sunscreens and makeup bases. *Skin irritation tests and patch tests have been conducted. <Features> 【High UV Scattering】 The particle size is controlled to be optimal for scattering ultraviolet rays from titanium dioxide and zinc. A non-chemical formulation can achieve "SPF50+ PA++++." 【High Transparency】 The particles are dispersed to scatter wavelengths of approximately 250-400nm in the ultraviolet range while allowing wavelengths of about 400-800nm in the visible light range to pass through easily, making it less likely to appear white when blended. 【Choice of Solvents】 We offer a variety of solvents including D5, dimethicone, hydrocarbon-based, and water-based to accommodate diverse orders. You can choose based on various aspects such as feel and volatility. 【Commitment to SDGs】 It is possible to design formulations "without using UV-absorbing materials," addressing concerns about environmental pollution and skin irritation. Please feel free to contact us if you would like more details or samples.

• others

The "Sunscreen Dispersion Series" is a dispersion of microparticle titanium dioxide and microparticle zinc oxide for UV care cosmetics. Starting with sunscreen agents (sunscreens), it provides UV cut functionality to cosmetics such as UV primers, medicated emulsions, and BB creams. In the "Silicone Dispersion Series," we offer a dispersion of titanium dioxide and zinc oxide using dimethicone. Additionally, in the "Non-Silicone Dispersion Series," we also have dispersions using n-dodecane (hydrocarbon oil) as a solvent, considering environmental impact. 【Features】 ■ Dispersed to a particle size suitable for UV scattering, enhancing "UV cut functionality" ■ Prevents scattering of visible light through microparticle dispersion, achieving "high transparency" ■ Achieves "long-term storage stability" through the design of suitable dispersions ■ Capable of achieving the highest level of UV cut effect even with "non-chemical formulations" *We also accept requests for free samples, so please feel free to contact us.

• Chemicals

The "Color Dispersion Series" is a color base that disperses various pigments in water. It can be considered for use in cosmetics primarily related to point makeup, such as eyeliners, mascaras, eyebrow products, and water-based nail polishes. Thanks to the proprietary polymer formulation, it achieves high dispersion, stability, and re-dispersibility. By enhancing dispersion and stability, changes over time, such as thickening, are mitigated. 【Features】 ■ Achieves "high color development" through high and uniform dispersion ■ Contributes to "high durability" with soap-free dispersion design ■ Realizes "long-term storage stability" through appropriate dispersion design *We also offer free samples, so please feel free to contact us.

• Chemicals

- After three months at 60°C, there were no changes in particle size or viscosity, resolving issues that could cause "clumping" or "smudging" in products like eyeliners. We will solve the concerns of researchers and developers regarding dispersions as colorants. - While ensuring long-term stability, we reviewed all production processes from scratch to achieve a close color match, discovering the optimal timing and methods to balance both storage stability and deep black performance. We designed it to make it as easy as possible for customers who valued the color of the previous product to consider alternatives. New customers will also be able to experience both color and stability. - Additionally, we have incorporated our uniquely developed dispersing polymer, which excels in "water resistance," "sebum resistance," and "abrasion resistance," so we have resolved only the issues of thickening and aggregation without compromising performance. - We have passed eye mucosa irritation tests, skin irritation tests, and patch tests, so you can use it with confidence. We would be grateful if you could consider it. We look forward to your request for samples.

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【Main Features】 - "Hand and finger disinfection" can be used for disinfection tasks around you as a cleaning alcohol. - The recommended alcohol concentration for the highest disinfection effect is 70-82% (our product is already diluted to a concentration of 75, and can be used immediately by refilling your spray bottle or soaking cloths). - Contains unique moisturizing ingredients to keep hands moisturized. - The inclusion of bittering agents reduces the risk of accidental ingestion by children. (*The bittering agents are present in extremely small amounts and have no effect on the human body.) (*Please note that individual differences in taste development and perception may mean that some children may not perceive the bitterness.) 【Product Specifications】 Container: Plastic container Volume: 4L (3.45 kg) 【How to Purchase】 Please fill out the "Product Introduction and Order Form" and send it via FAX. FAX: 0476-36-1565 *Please download the "Product Introduction and Order Form" from our catalog on the Ipros site.

• Other safety and hygiene products

The Dispersion and Coating Division (Narita Plant) began operations in 1983 in Narita City, Chiba Prefecture, as a base for the design, development, and manufacturing of paints, inks, and coating materials. Within the group, we possess manufacturing technologies represented by acrylic resins and provide dispersion and processing intermediates that meet customer demands in various fields. We accommodate everything from prototype levels in the research stage to small-scale production, and we receive many requests for special processed products for the electronics sector. Additionally, we manufacture lacquer spray concentrates and inks and paints by processing nitrocellulose (nitrated cotton), which is a self-reactive substance classified as a hazardous material of Class 5, and by handling raw materials. Please leave everything from small-scale prototyping to actual manufacturing to us, with our consistent quick response from the research stage to production. If you have any issues with dispersion processing, handling hazardous materials, or contract manufacturing, please consult us. Our technical specialists will assist you with joint prototype development and quality control. For more details, please contact us or download our catalog.

• Chemicals

In the "Comprehensive Catalog of Contract Processing for Mixing, Dissolving, and Dispersion," we outline a series of processes for contract processing, including the technology of Taisei Chemical. Taisei Chemical offers contract manufacturing and sales of processed products (mixing, dissolving, and dispersion). If you have any concerns, please feel free to contact us. If you are facing any of the following issues, please do not hesitate to consult with us! ■ You can only produce small lots, and the cost does not justify the investment in equipment. ■ You want to increase manufacturing facilities due to BCP considerations. ■ You want to increase production numbers but lack machinery. ■ You cannot store hazardous materials and cannot produce in large quantities, etc. *For more details, please refer to the catalog. Feel free to reach out with any inquiries.

• Other contract services

The "Contract Processing Case Studies" introduces some of the contract processing we have conducted so far. We are committed to raw material development with a constant focus on the final product, from proposing the optimal materials. We have clearly presented a wealth of development examples categorized by material, including colorants, inks, and dispersions.

• Other contract services

The "Q&A Collection on Taisei Chemical" compiles questions regarding Taisei Chemical's technologies and contract processing. It is a Q&A collection that resolves all kinds of inquiries! 【Main Contents】 ■ Questions about dissolution services ■ Questions about dispersion services ■ Questions about contract processing services ■ Other inquiries *If you have any questions, please feel free to contact us.

• Other contract services

Rice cookers, pens, inkjet inks, cosmetics, toys, and more are all around us, overflowing with various colors. Pigments are one of the materials (raw materials) used to color objects. Dispersing refers to the process of evenly spreading pigments (colors) in a solution and stabilizing them so that they do not stick together or separate. I will explain the somewhat unfamiliar keyword "dispersion" in an easy-to-understand manner, using practical examples. This has been created as an introduction for those handling chemical products (especially coloring agents such as inks, paints, and toners) from high school students to working professionals. Why do color unevenness and lack of gloss occur? This explanation discusses how these issues can be resolved through dispersion technology, based on chemical and physical methods. For more details, please download the catalog from the link below.

• Other contract services

The "T-NEX Conductive Material Dispersion Series" is a dispersion liquid of various conductive carbon blacks. By adding it, conductivity, light shielding, and black color can be imparted. It can be customized according to customer requests (desired solvent system, pH range, dispersion degree). We also provide samples of each product. 【Features】 ■ High conductivity ■ High dispersion ■ Customizability *For more details, please request a catalog or view the PDF available for download.

• paint

The solvent-based carbon black dispersion "T-NEX Oil-Based Jet Black Dispersion Series" is an oil-based coloring agent that disperses carbon black in organic solvents. By adding it, you can impart a deep jet black color to various materials. It can be customized according to customer requests (to match the desired solvent or resin type, or to adjust the dispersion level). We also provide product samples. 【Features】 ■ Deep jet black ■ Transparency ■ High pigment concentration ■ Customizability *For more details, please request a catalog or view the PDF available for download.

• paint