Abstract: The present invention enables fabrication and mass production of a bubble-jetting chip that includes a desired number of bubble jetting portions of the same size having bubble-jetting outlets of the same size. Mass production is enabled by fabricating a bubble-jetting chip comprising a substrate and a bubble-jetting portion formed on the substrate, the bubble-jetting portion comprising: an electrode that is formed of a conductive material; an insulating portion that is formed of an insulating photosensitive resin, is provided so as to sandwich the electrode, and includes an extended section that extends beyond the tip of the electrode; and a space that is formed between the extended section of the insulating portion and the tip of the electrode.

Abstract: The present invention enables fabrication and mass production of a bubble-jetting chip that includes a desired number of bubble jetting portions of the same size having bubble-jetting outlets of the same size. Mass production is enabled by fabricating a bubble-jetting chip comprising a substrate and a bubble-jetting portion formed on the substrate, the bubble-jetting portion comprising: an electrode that is formed of a conductive material; an insulating portion that is formed of an insulating photosensitive resin, is provided so as to sandwich the electrode, and includes an extended section that extends beyond the tip of the electrode; and a space that is formed between the extended section of the insulating portion and the tip of the electrode.

Abstract: A skin treatment composition of the present invention is an external composition for skin comprising an alkylene oxide derivative expressed by Formula (I): R1O-[(AO)m(EO)n]—R2??(I) wherein AO is an oxyalkylene group of C3 or C4; EO is an oxyethylene group; m and n are 1?m?70 and 1?n?70 respectively, wherein EO is 20˜80% by weight with respect to a total of AO and EO; each of R1 and R2 is a hydrogen or a hydrocarbon group having C1-4. The alkylene oxide derivative (I) has a moisturizing effect, a rough skin improving effect, a stickiness improving effect, and a transdermal absorption promoting effect. When a refreshing agent is used together therewith in the composition of the present invention, the refreshing effect lasts for a long time and it is excellent in feeling of use without skin stimulation.

Abstract: A skin treatment composition of the present invention is an external composition for skin comprising an alkylene oxide derivative expressed by Formula (I): R1O-[(AO)m(EO)n]—R2 ??(I) wherein AO is an oxyalkylene group of C3 or C4; EO is an oxyethylene group; m and n are 1?m?70 and 1?n?70 respectively, wherein EO is 20-80% by weight with respect to a total of AO and EU; each of R1 and R2 is a hydrogen or a hydrocarbon group having C1-4. The alkylene oxide derivative (I) has a moisturizing effect, a rough skin improving effect, a stickiness improving effect, and a transdermal absorption promoting effect. When a refreshing agent is used together therewith in the composition of the present invention, the refreshing effect lasts for a long time and it is excellent in feeling of use without skin stimulation.

Abstract: A skin treatment composition of the present invention is an external composition for skin comprising an alkylene oxide derivative expressed by Formula (I): R1O—[(AO)m(EO)n]—R2??(I) wherein AO is an oxyalkylene group of C3 or C4; EO is an oxyethylene group; m and n are 1?m?70 and 1?n?70 respectively, wherein EO is 20˜80% by weight with respect to a total of AO and EO; each of R1 and R2 is a hydrogen or a hydrocarbon group having C1-4. The alkylene oxide derivative (I) has a moisturizing effect, a rough skin improving effect, a stickiness improving effect, and a transdermal absorption promoting effect. When a refreshing agent is used together therewith in the composition of the present invention, the refreshing effect lasts for a long time and it is excellent in feeling of use without skin stimulation.

Abstract: A skin treatment composition of the present invention is an external composition for skin comprising an alkylene oxide derivative expressed by Formula (I):

Abstract: A weak acid skin cleanser containing an alkali salt of N-acylamino acid and maltitolhydroxy aliphatic ether, or a hydroxy ether carboxylic acid-based anionic surfactant, or polyethylene powder, as well as water and an organic acid. Also, a weak acid skin cleanser containing an alkali salt of N-acylamino acid, a betaine-based ampholytic surfactant, water, and an organic acid. The weak acid skin cleansers mentioned above provide creamy and rich foaming, rapid rinsing, refreshing sensation during use, moist skin sensation after cleaning, and shelf stability of the base agent (separation, offensive odor, discoloration, etc.), and are free of increasing hardness over time at room temperature and below.

Abstract: A cholesterol ester clathrate comprising a cholesterol ester included in a hydroxyalkylated cyclodextrin; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a hydrous stabilizer, and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a clay mineral, and water; cosmetics containing these hydrous compositions; and process for the preparation thereof. The clathrate exhibits an emulsifying effect in itself. Further, the hydrous compositions are excellent in water-holding capacity and are improved in hydration properties and separation stability at a high temperature.

Abstract: The invention provides a clathrate comprising a cyclodextrin or hydroxyalkylated cyclodextrin and, as included therein, dl-.alpha.-tocopheryl L-ascorbyl phosphate. In another aspect, the invention provides a dermal composition for external use, particularly a cosmetic composition. The composition is characterized by reduced foam production in aqueous solution and good stability against light.

Abstract: A cholesterol ester clathrate comprising a cholesterol ester included within a hydroxyalkylated cyclodextrin; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a hydrous stabilizer, and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a clay mineral, and water; a cosmetic containing a hydrous composition; and processes for making the cholesterol ester clathrate and various hydrous compositions. The cholesterol ester clathrate exhibits an emulsifying effect and the hydrous compositions are excellent in water-holding capacity, hydration properties, and separation stability at a high temperature.