Abstract: A detection device detecting collapse of PM collected in a filter provided in an exhaust system flow path of an internal combustion engine includes: a differential pressure sensor configured to acquire a differential pressure between an exhaust inlet side and an exhaust outlet side of the filter; a water generation determination unit configured to determine whether water is generated in the exhaust system flow path; and a PM collapse determination unit configured to determine that at least a part of the PM collected in the filter has collapsed when a PM accumulation amount estimated based on the acquired differential pressure has increased by a predetermined amount or more within a predetermined period in a state where the PM accumulation amount estimated based on the acquired differential pressure is equal to or larger than a predetermined first threshold and the water generation determination unit has determined that water is generated.

Abstract: The problem of the present disclosure is to impart manageability and flexibility to hair after being dyed or bleached using an oxidative hair dye or a hair bleaching agent. The features for solving the problem are a first agent of an oxidative hair dye or a hair bleaching agent comprising: (A) a polyvalent carboxylic acid having no hydroxyl group or a salt thereof; (B) a surfactant including (B1) a cationic surfactant and (B2) a nonionic surfactant; (C) an oily component; and (D) an alkaline agent.

Abstract: A detection device detecting collapse of PM collected in a filter provided in an exhaust system flow path of an internal combustion engine includes: a differential pressure sensor configured to acquire a differential pressure between an exhaust inlet side and an exhaust outlet side of the filter; a water generation determination unit configured to determine whether water is generated in the exhaust system flow path; and a PM collapse determination unit configured to determine that at least a part of the PM collected in the filter has collapsed when a PM accumulation amount estimated based on the acquired differential pressure has increased by a predetermined amount or more within a predetermined period in a state where the PM accumulation amount estimated based on the acquired differential pressure is equal to or larger than a predetermined first threshold and the water generation determination unit has determined that water is generated.

Abstract: The problem of the present disclosure is to impart manageability and flexibility to hair after being dyed or bleached using an oxidative hair dye or a hair bleaching agent. The features for solving the problem are a first agent of an oxidative hair dye or a hair bleaching agent comprising: (A) a polyvalent carboxylic acid having no hydroxyl group or a salt thereof; (B) a surfactant including (B1) a cationic surfactant and (B2) a nonionic surfactant; (C) an oily component; and (D) an alkaline agent.

Abstract: The present invention provides a two-part hair cosmetic material having a reduced irritating smell due to ammonia. Specifically, the present invention relates to a two-part hair cosmetic material comprising a first agent containing an alkali agent and a second agent containing an oxidizing agent, wherein the first agent contains the following ingredients: (A) a polyoxyethylene alkyl ether having a polyoxyethylene chain length of 50 or more, (B) a higher alcohol, and (C) a polyoxyethylene alkyl ether having a polyoxyethylene chain length shorter than the polyoxyethylene chain length of the polyoxyethylene alkyl ether (A), and the content of a higher alcohol having 20 or more carbon atoms in the higher alcohol (B) is 1.0% by weight or less based on the weight of the first agent.

Abstract: An agent for hair dyeing or bleaching includes (A) (a1) from 10 to 30% by weight oil which is in a liquid form at normal temperature and (a2) an oil which is in a solid form at normal temperature, which includes a higher alcohol which is in a solid form at normal temperature, and the weight ratio (A)/(a2) of the total weight (A) of (a1) and (a2) to (a2) is from 3 to 8; (B) (b1) a cationic surfactant and (b2) a nonionic surfactant, wherein the cationic surfactant includes an alkyltrimethylammonium chloride which has from 16 to 22 carbon atoms in the alkyl group thereof, and the total weight (B) of (b1) and (b2) is from 0.5 to 1.8% by weight, and (C) from 0.1 to 12% by weight of an oxidizing agent, wherein, the weight ratio (A)/(B) of (A) to (B) is from 5 to 30.

Abstract: A problem to be solved by the present invention is to provide a hair cosmetic which can be easily applied to the hair uniformly, and at the same time, does not drip from the hair, does not spatter when applied to the hair, and does not dirty the surrounding, clothing, the skin or the like. The present invention relates to a hair cosmetic comprising (A) a cationic surfactant, (B) a nonionic surfactant, (C) a higher alcohol, (D) an oil having an IOB value of 0.1 or lower, and (E) water, which is used after being mixed with a gas to be thickened.

Abstract: The present invention provides a two-part hair cosmetic material having a reduced irritating smell due to ammonia. Specifically, the present invention relates to a two-part hair cosmetic material comprising a first agent containing an alkali agent and a second agent containing an oxidizing agent, wherein the first agent contains the following ingredients: (A) a polyoxyethylene alkyl ether having a polyoxyethylene chain length of 50 or more, (B) a higher alcohol, and (C) a polyoxyethylene alkyl ether having a polyoxyethylene chain length shorter than the polyoxyethylene chain length of the polyoxyethylene alkyl ether (A), and the content of a higher alcohol having 20 or more carbon atoms in the higher alcohol (B) is 1.0% by weight or less based on the weight of the first agent.

Abstract: A problem to be solved by the present invention is to provide a hair cosmetic which can be easily applied to the hair uniformly, and at the same time, does not drip from the hair, does not spatter when applied to the hair, and does not dirty the surrounding, clothing, the skin or the like. The present invention relates to a hair cosmetic comprising (A) a cationic surfactant, (B) a nonionic surfactant, (C) a higher alcohol, (D) an oil having an IOB value of 0.1 or lower, and (E) water, which is used after being mixed with a gas to be thickened.