摘要:
A dye composition for keratinous fibers which contains a coupler and a developer are disclosed. The present coupler component is a novel 2-alkoxy-3,5-diaminopyridine derivatives of the formula (1): ##STR1## wherein R1 and R2 are the same or different from each other and independently represent a hydrogen atom, a lower alkanoyl group or a lower alkyl group which may be substituted by at least one hydroxyl group, and R3 is a lower alkyl group which may be substituted by at least one hydroxyl group, or a salt thereof; provided that R1 and R2 are not both a hydrogen atom or an acetyl group at the same time. The present 2-alkoxy-3,5-diaminopyridine derivatives are useful as couplers in dye compositions, and are capable of dyeing keratinous fibers such as hair in a bright blue color with excellent dyeability. Dye compositions containing the present compounds as a coupler show excellent resistance to discoloration, excellent resistance to shampooing and excellent resistance to friction.
摘要:
A dye composition for keratinous fibers is disclosed. The composition comprises a developing substance and, as a coupling substance, a 3,5-diaminopyridine derivative of the following formula (I), ##STR1## wherein R.sup.1 is an alkoxy group or a group ##STR2## wherein R.sup.2 and R.sup.3 may be the same or different and individually represents a hydrogen atom or a hydroxyalkyl group, R.sup.4 a hydroxy, alkoxy, or hydroxyalkyl group, and n is a number of 1-4; or a salt thereof. The composition is capable of dyeing keratinous fibers such as hairs in blue color with a high vividness and with resistances to the light, color change, and discoloration due to shampooing.
摘要:
A keratinous fiber dye composition comprising a developer and a coupler, wherein the coupler is a 2-substituted amino-5-alkylphenol derivative represented by the following formula (1): ##STR1## wherein the all symbols are defined in the disclosure, is disclosed. The keratinous fiber dye composition imparts a color tone of a high chroma and is excellent in coloring power and fastness.
摘要:
There is provided a head hair dyeing method using a two-part hair dye composition which contains a first part containing an alkali agent, a second part containing hydrogen peroxide and a non-aerosol type foamer container for discharging a mixture solution of the first part and the second part as foam, the composition containing a surfactant in at least one of the first part and the second part, the method including discharging the mixture solution as foam, applying the foam to the head hair, and then re-foamed on the head hair.
摘要:
A hair treatment method entailing sequentially (i) preparing a hair cosmetic by mixing a first agent containing an alkali agent and a second agent containing hydrogen peroxide to form a mixed liquid, (ii) discharging the mixed liquid in the form of a foam from a foamer vessel without a propellant, (iii) applying the mixed liquid to hair, (iv) allowing the mixed liquid to stand for 3 to 60 minutes; and (v) rinsing the mixed liquid away.
摘要:
A hair cosmetic product has a two agent type hair cosmetic which comprises a first agent containing an alkali agent and a second agent containing hydrogen peroxide, wherein at least one of the first and second agents contains a surfactant; and a foamer vessel which discharges a mixed liquid comprising the first and second agents in the form of foam. Another hair cosmetic product has a two agent type hair cosmetic which contains a first agent that includes an alkali agent and a second agent that includes hydrogen peroxide, and which is used after mixing the first and second agents immediately prior to use, and a foamer vessel from which a mixed liquid of the first and second agents is discharged in the form of foam. A surfactant is contained in the mixed liquid at an amount of 0.1 to 10 wt %, and the viscosity of the mixed liquid at 25° C. is 1 to 300 mPa·s.
摘要:
A recording head circuit is configured to drive a plurality of recording elements by dividing the plurality of recording elements into a plurality of blocks. The circuit delays not only heat signals, which are used to drive the recording elements in each of the blocks, but also block signals. Consequently, noises are prevented from appearing due to overlapping of signals.
摘要:
A method for simulating the behavior of a flexible medium which is conveyed along a conveying path constructed of a pair of conveyor rollers includes the steps of dividing the surfaces of the conveyor rollers into a contact region and a non-contact region and setting a first peripheral speed and a second peripheral speed for the contact region and the non-contact region, respectively, and performing a simulation under a condition that a conveying force corresponding to the difference between the second peripheral speed and a moving speed of the flexible medium is applied to the flexible medium when the flexible medium reaches the non-contact region of the conveyor rollers and a condition that the flexible medium is conveyed at the first peripheral speed when the flexible medium reaches the contact region of the conveyor rollers.
摘要:
There is disclosed a head substrate of a printing head detachably mounted on a printer main body, comprising plural external connection terminals individually receiving, from the exterior, a binary logic signal corresponding to whether or not to execute a recording operation, a recording image signal and a clock signal, recording execution means for executing the recording operation according to the recording image signal and the clock signal entered through the external connection terminals, in case the binary logic signal is in a first state, data memory means for and data readout, and memory access means for recognizing the binary logic signal in a second state as an access permission signal and executing the memory access to the data memory means at a timing corresponding to the clock signal when the logic signal is a second state.
摘要:
A liquid discharge head is provided with discharge ports for discharging liquid, liquid flow paths communicated with the discharge ports for supplying liquid to the discharge ports, a substrate having heat generating members for creating bubbles in the liquid, and movable members facing the heat generating members and being arranged in the liquid flow paths. The movable members have a free end on the discharge port side with a specific gap with respect to the heat generating members. The movable member is fixed to the substrate above the heat generating member on the substrate.