Abstract: A crashworthiness energy absorption part includes: a tubular member having tensile strength of 590 to 1180 MPa grade; a closed cross section space forming wall part having tensile strength lower than the tubular member and having both edge portions joined to inner surfaces of a pair of side wall portions of the tubular member, and forming a closed cross section space between the closed cross section space forming wall part and a part of a peripheral wall portion of the tubular member; and a resin configured to fill the closed cross section space, includes a rubber-modified epoxy resin and a curing agent, and has tensile breaking elongation of 80% or more, adhesive strength to the tubular member and closed cross section space forming wall part of 12 MPa or higher, and a compression nominal stress of 6 MPa or higher at a compression nominal strain of 10%.

Abstract: An ink set according to one embodiment of the disclosure includes a colored ink composition, which contains a pigment and is a water-based ink jet ink, and a water-based resin liquid composition which contains a resin, in which the resin liquid composition contains a urethane resin having an alicyclic structure or an aromatic ring structure and an acid value of 50 to 100 mg KOH/g.

Abstract: In an ink jet ink composition containing polymer particles, a polymer constituting the polymer particles includes a polymer having a urethane group derived from one or more isocyanates selected from dicyclohexylmethane diisocyanate, isophorone diisocyanate, 1,3-bis(isocyanatemethyl)cyclohexane, m-bis(isocyanatepropyl)benzene, and m-bis(isocyanatemethyl)benzene and a structure derived from polytetramethylene glycol and having an acid value of 50 to 100 mgKOH/g.

Abstract: An ink jet etching method according to the invention includes an etching step of etching fabric by using an ink set including first etching ink containing an etching agent, and second etching ink containing the etching agent in which a concentration of the etching agent is lower than a concentration of the etching agent in the first etching ink, in which etching fabric includes ejecting the first etching ink is ejected from two or more nozzle arrays among a plurality of nozzle arrays included in a recording head.

Abstract: An ink jet etching method according to the invention includes an etching step of etching fabric by using an ink set including first etching ink containing an etching agent, and second etching ink containing the etching agent in which a concentration of the etching agent is lower than a concentration of the etching agent in the first etching ink, in which etching fabric includes ejecting the first etching ink is ejected from two or more nozzle arrays among a plurality of nozzle arrays included in a recording head.

Abstract: Disclosed are an ink composition containing at least one of a porphyrazine compound or a salt thereof and an aromatic compound having a sulfo group or a salt thereof, an ink jet recording method using the ink composition and a recorded material recorded by the recording method.

Abstract: Disclosed are an ink composition at least containing a porphyrazine compound or a salt thereof and an aromatic compound having a carboxy group and/or a salt thereof, an ink jet recording method using the ink composition and a recorded material recorded by the recording method.

Abstract: An ink composition contains a dye whose free acid is expressed by formula (1), lithium ions, and an aromatic compound having a carboxy group. In formula (1), Q represents a halogen atom, x represents an integer of 2 to 4, and y represents an integer of 1 to 3.

Abstract: An ink composition includes: water, a compound represented by the following general formula (1) or a salt thereof, and a compound represented by the following general formula (21) or a salt thereof. (in the formula (1), n represents 0 or 1, each of R1, R2, R3, and R4 represents a substituent, Group A represents a substituted heterocyclic group represented by the following general formula (2) or (3): in the formula (2), R5 represents a substituent. in the formula (3), each of R6, R7, and R8 represents a substituent, and Group B has a substituted phenyl group or naphthyl group). (in the formula (21), each of R21, R22, R23, R24, R25, R26, R27, and R28 represents a substituent, and X represents a divalent crosslinking group).

Abstract: An ink composition contains a particular anthrapyridone dye and a particular copper phthalocyanine dye. The hue angle in the L*a*b* color system calculated from spectral characteristics of a 1,000-fold diluted solution of the ink composition in water is 270° to 360°. The content of the anthrapyridone dye is higher than the content of the copper phthalocyanine dye.

Abstract: An ink composition contains a water-soluble copper compound and an anthrapyridone dye represented by the following formula: wherein M1 represents a hydrogen atom, NH4, or Na; R1 represents a hydrogen atom, a substitutable alkyl group, a substitutable aryl group, or a substitutable benzoyl group; R2 represents a hydrogen atom or a substitutable alkyl group; R3 represents a hydrogen atom, a halogen atom, or a substitutable alkyl group; R4 represents a hydrogen atom, NH4 which may be substituted, or a substitutable sulfo group; and R5 represents an acyl group or a group represented by the following formula: where X and Y independently represent a chlorine atom, hydroxy group, amino group, monoethanolamino group, diethanolamino group, morpholino group, anilino group, or phenol group in which hydrogen atoms may be substituted by one or more substituents.

Abstract: An ink composition contains a dye whose free acid is expressed by formula (1), lithium ions, and an aromatic compound having a carboxy group. In formula (1), Q represents a halogen atom, x represents an integer of 2 to 4, and y represents an integer of 1 to 3.

Abstract: An ink composition includes: water, a compound represented by the following general formula (1) or a salt thereof, and a compound represented by the following general formula (21) or a salt thereof. (in the formula (1), n represents 0 or 1, each of R1, R2, R3, and R4 represents a substituent, Group A represents a substituted heterocyclic group represented by the following general formula (2) or (3): in the formula (2), R5 represents a substituent. in the formula (3), each of R6, R7, and R8 represents a substituent, and Group B has a substituted phenyl group or naphthyl group). (in the formula (21), each of R21, R22, R23, R24, R25, R26, R27, and R28 represents a substituent, and X represents a divalent crosslinking group).

Abstract: Disclosed are an ink composition containing at least one of a porphyrazine compound or a salt thereof and an aromatic compound having a sulfo group or a salt thereof, an ink jet recording method using the ink composition and a recorded material recorded by the recording method.

Abstract: Disclosed are an ink composition at least containing a porphyrazine compound or a salt thereof and an aromatic compound having a carboxy group and/or a salt thereof, an ink jet recording method using the ink composition and a recorded material recorded by the recording method.

Abstract: An ink composition contains a particular anthrapyridone dye and a particular copper phthalocyanine dye. The hue angle in the L*a*b* color system calculated from spectral characteristics of a 1,000-fold diluted solution of the ink composition in water is 270° to 360°. The content of the anthrapyridone dye is higher than the content of the copper phthalocyanine dye.

Abstract: An ink composition contains a water-soluble copper compound and an anthrapyridone dye represented by the following formula: wherein M1 represents a hydrogen atom, NH4, or Na; R1 represents a hydrogen atom, a substitutable alkyl group, a substitutable aryl group, or a substitutable benzoyl group; R2 represents a hydrogen atom or a substitutable alkyl group; R3 represents a hydrogen atom, a halogen atom, or a substitutable alkyl group; R4 represents a hydrogen atom, NH4 which may be substituted, or a substitutable sulfo group; and R5 represents an acyl group or a group represented by the following formula: where X and Y independently represent a chlorine atom, hydroxy group, amino group, monoethanolamino group, diethanolamino group, morpholino group, anilino group, or phenol group in which hydrogen atoms may be substituted by one or more substituents.

Abstract: An ink composition at least comprising water and a colorant, and further comprising 0.01% by weight or more of lithium ions based on the total weight of the ink composition, wherein at least one type of glycol ether represented by the following formula 1 is contained: R1O—[—CH2—CH2—O]n—R2??Formula 1 (wherein, n represents a positive number of 4 to 8, R1 represents H or an alkyl group having 1 to 3 carbon atoms, and R2 represents an alkyl group having 6 to 8 carbon atoms).

Abstract: Problem: To improve clogging and ink droplet deflection. Solving Means: An ink composition comprising at least water, a colorant and an aromatic compound having a carboxyl group, which contains at least one member selected from the group consisting of a sodium ion, a potassium ion and an ammonium ion and also contains a lithium ion. Alternatively, an ink composition comprising at least water, a specific cyan dye and an aromatic compound having a carboxyl group, which contains a lithium ion and also contains a sodium ion and/or a potassium ion.

Abstract: An ink set containing at least a yellow ink composition, a magenta ink composition, and a cyan ink composition: said magenta ink composition containing as a colorant at least one type of compound expressed by the formula M-1 in claim 1, and at least one type of compound expressed by the following formula M-2 in claim 1, the yellow ink composition containing as a colorant at least one type of compound expressed by the formula Y-1 in claim 1; and the cyan ink composition containing as a colorant at least one type of compound selected from the group consisting of compounds or salts thereof expressed by the Formula C-1 in claim 1.