Abstract: To provide a pretreatment liquid for inkjet textile printing, having excellent color development in the inkjet textile printing process, excellent color fastness to washing on printed fabrics, and little pretreatment trace residue. The solution therefor is a pretreatment liquid for inkjet textile printing containing 100 parts by mass of a cationic polymer (A), 5 parts by mass or more and less than 100 parts by mass of a (meth)acrylate-based vinyl copolymer (B), and 2 parts by mass or more and less than 30 parts by mass of a crosslinking agent (C), each being in solid content, and water, the liquid having a solid content by weight of 2 mass % or more and 30 mass % or less.

Abstract: A pretreatment composition is used to form a wet precoat layer for forming an image on a fabric by an inkjet method, wherein [1] the water-based ink composition contains water, a pigment, a resin emulsion, a water-soluble organic solvent, and a surfactant, [2] the pretreatment composition is used to form the wet precoat layer in which an amount of the pretreatment composition applied per unit area is more than 0.035 g/cm2 and less than 0.070 g/cm2, [3] the pretreatment composition contains water, more than 1.4 mass % and less than 10.5 mass % of a cationic polymer, and 0.1 mass % or more and less than 2.7 mass % of a crosslinking agent with respect to the total mass of the pretreatment composition, and [4] the cationic polymer contains at least one selected from an allylamine structural unit, a diallylamine structural unit, a diallylammonium structural unit, and an epihalohydrin structural unit.

Abstract: Disclosed is a PPS member having an excellent fastness to lights such as ultraviolet light, and of which color does not change even when the member is used outdoors, while retaining the characteristics of PPS. The polyphenylene sulfide member according to the present invention is characterized by having a light-fastness rating of Class 1 or higher, against light from an ultraviolet carbon arc lamp, which rating is measured in accordance with JIS L-0842.

Abstract: In a case of using a CCD or analog circuit of a poor quality where an error in hue or the like causes a problem, such an error in hue or the like may not be dealt with. In correcting pixel output values of a CCD, there are prepared beforehand a plurality of correction approximate straight-line group information or a set of correction approximate straight-line group information and a plurality of error correction approximate straight-line group information, and the most suitable one of them is dynamically selected. Alternatively, the gain is dynamically decided by use of a ratio-based correction from a plurality of candidate correction approximate straight-line group information (error correction approximate straight-line group information). Additionally, the ratio of color components (carrier components) is used to select the correction approximate straight-line group information (error correction approximate straight-line group information) and to decide the ratio of the correction.

Abstract: Disclosed is a PPS member having an excellent fastness to lights such as ultraviolet light, and of which color does not change even when the member is used outdoors, while retaining the characteristics of PPS. The polyphenylene sulfide member according to the present invention is characterized by having a light-fastness rating of Class 1 or higher, against light from an ultraviolet carbon arc lamp, which rating is measured in accordance with JIS L-0842.