Asahi Kasei Fibers Corporation

Kao Corporation

Asahi Kasei Kabushiki Kaisha

Toshihiko Matsui

Masanori Doi

Yoshiyuki Shiomi

Satoru Yoshida

Shunsuke Watanabe

Satoshi Shibuichi

Takeshi Matsuse

Nobuyuki Mimura

Provided are an immunochromatography kit that is highly sensitive and capable of multicoloration, and organic colored microparticles that are ideal as an element of the immunochromatography kit. Organic colored microparticles having an average grain size between 10 and 1,000 nm and a color intensity between 1.0 and 5.0 are prepared using cellulose as the starting material. When the organic colored microparticles are used as a label in an immunochromatography kit, the immunochromatography kit is of a high sensitivity than conventional technology. The immunochromatography kit is also capable of multicoloration and is useful for rapid diagnosis.

Organic colored microparticles, diagnostic reagent kit containing the same, and in vitro diagnosis method

An object of the present invention is to provide a hydrophilic cellulose derivative fine particle having a small particle size, a dispersion liquid thereof and a dispersion body thereof; and provide a diagnostic reagent composed of the hydrophilic particle, which is excellent in storage stability and does not require excess components, such as an emulsifier or surfactant. The cellulose derivative fine particle of the present invention is a cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted with a substituent, wherein the average particle diameter is from 9 to 1,000 nm; and the diagnostic reagent of the present invention is a diagnostic reagent obtained by loading a substance differentially interacting with a test object substance on the above-described cellulose derivative fine particle.

Cellulose derivative fine particle, dispersion liquid thereof, dispersion body thereof and diagnostic reagent

There is provided a method for enhancing a chroma of hair which comprises the steps of shampooing the hair with a water-based shampoo containing (A) 5 to 20% by weight of an anionic surfactant, (B) 0.1 to 5% by weight of a water-insoluble modified silicone containing at least one of an amino group and a quaternary ammonium group in a molecule thereof, and (C) a water-soluble salt in an amount capable of allowing the component (B) to be present in a solubilized state; applying a water-based conditioner containing a higher alcohol having 12 to 28 carbon atoms and a cationic surfactant at a molar ratio of 1:1 to 10:1 to the shampooed hair; and rinsing the hair. The method is capable of allowing an inherent color of hair, a dull color of damaged hair or a color of hair dyed by coloring to look clearer or more vivid, or maintaining a clearness of the color of hair.

Method for enhancing chroma of hair

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Tokyo, Japan

Toshihiko Matsui