Naris Cosmetics Obtains Patent for Technology Achieving Both Water Resistance and Stability by Highly Blending Powder into Liquid Sunscreen
Naris Cosmetics has successfully obtained a patent for a new technology that stably incorporates a high concentration of powder into liquid sunscreens, achieving both a smooth feel and high water resistance. This innovation enables the development of sunscreens with enhanced comfort and functionality.
📋 Article Processing Timeline
- 📰 Published: April 30, 2026 at 22:00
- 🔍 Collected: April 30, 2026 at 13:31
- 🤖 AI Analyzed: April 30, 2026 at 14:07 (35 min after Collected)
Comparison of stickiness immediately after application to the inner forearm, confirming the adhesion of paper pieces. Left: Emulsified liquid sunscreen. Right: Research product.
Naris Cosmetics Co., Ltd. (Representative: Hiroyoshi Muraoka, Head office: Fukushima-ku, Osaka) reports the successful development of a liquid sunscreen formulation that incorporates a high concentration of powder to achieve a smooth feel, leading to its patent registration.
[Previous Research]
In recent years, with the prolonged summer seasons and increasing heatwaves throughout the year, sunscreen has become an essential item for people of all ages. Through various companies' research and development, diverse sunscreen formulations such as creams, gels, milks, mists, and powders are now commercialized. Our company has been at the forefront of researching new sunscreen formulations, for instance, by releasing an aerosol-type spray sunscreen in 1993 that could be applied widely. Recent research themes for sunscreens have focused on developing products that offer greater comfort in use, such as ease of application, pleasant feel, durability, and water resistance. To create a comfortable user experience, the ability to stably blend powders for a smooth sensation is crucial. However, when powders are incorporated at high concentrations, they tend to settle and solidify, leading to deterioration in usability and clogging issues when spraying. Thus, high concentration blending was difficult.
[Patent Details]
This newly patented technology aims to improve the pleasant feel during application and water resistance. Liquid sunscreens need to achieve strong adhesion and fixation to the skin after being sprayed and drying. Existing emulsion-based sunscreens required improvement in this aspect. A possible approach was to switch from an emulsion system to an oil-based system and incorporate alcohol. However, simply adding alcohol would cause the powder to settle and solidify, making it impossible to use as a mist. Furthermore, if the alcohol ratio becomes too high, it becomes a dangerous substance under the Fire Service Act, subjecting storage and handling to strict facility standards. Our company has established a technology that combines specific surfactants and oil-based gelling agents, enabling manufacturing with general cosmetic production equipment and achieving stable, high-concentration powder blending. This technology has also been confirmed to have excellent water resistance.
Water Resistance Confirmation:
A colored research product was applied and then rubbed 10 times with a tissue 30 minutes later.
[Patent Registration Number] 7844308
[Registration Date] April 3, 2026
[Name] Sunscreen Cosmetic
[Inventor] Naris Cosmetics R&D Department, Seigo Date
Naris Cosmetics Co., Ltd. (Representative: Hiroyoshi Muraoka, Head office: Fukushima-ku, Osaka) reports the successful development of a liquid sunscreen formulation that incorporates a high concentration of powder to achieve a smooth feel, leading to its patent registration.
[Previous Research]
In recent years, with the prolonged summer seasons and increasing heatwaves throughout the year, sunscreen has become an essential item for people of all ages. Through various companies' research and development, diverse sunscreen formulations such as creams, gels, milks, mists, and powders are now commercialized. Our company has been at the forefront of researching new sunscreen formulations, for instance, by releasing an aerosol-type spray sunscreen in 1993 that could be applied widely. Recent research themes for sunscreens have focused on developing products that offer greater comfort in use, such as ease of application, pleasant feel, durability, and water resistance. To create a comfortable user experience, the ability to stably blend powders for a smooth sensation is crucial. However, when powders are incorporated at high concentrations, they tend to settle and solidify, leading to deterioration in usability and clogging issues when spraying. Thus, high concentration blending was difficult.
[Patent Details]
This newly patented technology aims to improve the pleasant feel during application and water resistance. Liquid sunscreens need to achieve strong adhesion and fixation to the skin after being sprayed and drying. Existing emulsion-based sunscreens required improvement in this aspect. A possible approach was to switch from an emulsion system to an oil-based system and incorporate alcohol. However, simply adding alcohol would cause the powder to settle and solidify, making it impossible to use as a mist. Furthermore, if the alcohol ratio becomes too high, it becomes a dangerous substance under the Fire Service Act, subjecting storage and handling to strict facility standards. Our company has established a technology that combines specific surfactants and oil-based gelling agents, enabling manufacturing with general cosmetic production equipment and achieving stable, high-concentration powder blending. This technology has also been confirmed to have excellent water resistance.
Water Resistance Confirmation:
A colored research product was applied and then rubbed 10 times with a tissue 30 minutes later.
[Patent Registration Number] 7844308
[Registration Date] April 3, 2026
[Name] Sunscreen Cosmetic
[Inventor] Naris Cosmetics R&D Department, Seigo Date