Provided are an ink composition for ink jet printing, and an image forming method and a recorded material using the ink composition for ink jet printing. The ink composition for ink jet printing includes: a colorant represented by the following Formula 1; resin particles; a water-soluble organic solvent; and water. In Formula 1, Y.sup.1 and Y.sup.2 each independently represent a non-metal atomic group which forms an aliphatic ring or a heterocycle, M.sup.+ represents a proton or a monovalent alkali metal cation or organic cation, L.sup.1 represents a methine chain consisting of 5 or 7 methine groups, and a methine group at a center of the methine chain has a specific substituent. ##STR00001##

An ink composition for continuous deflected ink jet printing, liquid at ambient temperature is disclosed. One aspect is an ink composition comprising: a solvent including organic solvent compound(s), and optionally water, the solvent representing at least 20% by weight of the total weight of the ink. Furthermore, there is at least one compound imparting conductivity to the ink composition, chosen from among the ionic liquids, the compound representing 0.2% by weight to 4% by weight of the total weight of the ink composition, preferably 0.5 to 3% by weight of the total weight of the ink composition. Lastly, the ink composition includes less than 10% by weight, preferably less than 5% by weight, more preferably less than 1% by weight, and most preferably 0% by weight of water relative to the total weight of the ink composition.

The present invention is related to a retortable package comprising a flexible multilayer substrate comprising a reverse-printed layer, said reverse-printed layer comprising one or more crosslinked ink layer(s), and to a method for producing said multilayer laminate.

The disclosure provides a microcapsule type thermochromic pigment and a preparation method and use thereof, and a thermochromic ink and use thereof. The microcapsule type thermochromic pigment provided by the disclosure includes a core material and a wall material wrapping the core material, wherein the core material includes the following components: a leuco dye, a developer and stearic acid 2-[4-(phenylmethoxy)phenyl]ethyl ester, and the wall material is self-emulsifying polyurethane or self-emulsifying epoxy resin.

An object is to improve the lamination strength and anti-blocking suitability of matters printed with an aqueous white inkjet ink composition containing titanium oxide, etc., on polyethylene terephthalate, polypropylene, nylon, and other resin films. As a means for achieving the object, an ink set is provided that includes a combination of: an aqueous primer composition containing an acrylic resin and/or vinyl acetate resin, and a calcium salt; and an aqueous white inkjet ink composition containing a polyester polyurethane resin emulsion with a rate of elongation of 500 to 1500% by 0.1 to 10.0 percent by mass in solids content in the aqueous white inkjet ink composition, a wax emulsion, and a titanium oxide.

An object is to improve the lamination strength and anti-blocking suitability of matters printed with an aqueous white inkjet ink composition containing titanium oxide, etc., on polyethylene terephthalate, polypropylene, nylon, and other resin films. As a means for achieving the object, an ink set is provided that includes a combination of: an aqueous primer composition containing an acrylic resin and/or vinyl acetate resin, and a calcium salt; and an aqueous white inkjet ink composition containing a polyester polyurethane resin emulsion with a rate of elongation of 500 to 1500% by 0.1 to 10.0 percent by mass in solids content in the aqueous white inkjet ink composition, a wax emulsion, and a titanium oxide.

An active-energy-ray-polymerizable initiator having a structure represented by the following general formula (1) is provided. ##STR00001##
In general formula (1), L.sub.1 represents —C(═O)—O— (binding to L.sub.2 side) or —O—, L.sub.2 represents —O(CH.sub.2).sub.p-(binding to L.sub.1 side), —(OC.sub.2H.sub.4).sub.n-(binding to L.sub.1 side), or —(OC.sub.3H.sub.6).sub.m-(binding to L.sub.1 side), where p represents an integer of 2 to 16, n represents an integer of 2 to 12, and m represents 2 or 3, L.sub.3 represents a direct binding or —NH—, L.sub.4 represents —OC.sub.2H.sub.4-(binding to L.sub.3 side) or —(OC.sub.2H.sub.4).sub.2-(binding to L.sub.3 side), and R represents —H or —CH.sub.3.

An active-energy-ray-polymerizable initiator having a structure represented by the following general formula (1) is provided. ##STR00001##
In general formula (1), L.sub.1 represents —C(═O)—O— (binding to L.sub.2 side) or —O—, L.sub.2 represents —O(CH.sub.2).sub.p-(binding to L.sub.1 side), —(OC.sub.2H.sub.4).sub.n-(binding to L.sub.1 side), or —(OC.sub.3H.sub.6).sub.m-(binding to L.sub.1 side), where p represents an integer of 2 to 16, n represents an integer of 2 to 12, and m represents 2 or 3, L.sub.3 represents a direct binding or —NH—, L.sub.4 represents —OC.sub.2H.sub.4-(binding to L.sub.3 side) or —(OC.sub.2H.sub.4).sub.2-(binding to L.sub.3 side), and R represents —H or —CH.sub.3.

An ink composition for inkjet printing organic light-emitting diodes and a method of manufacturing the same are disclosed. The ink composition includes 0.01-40% of bipolar light emission component, 10-99.9% of solvent, 0.01-5% of surface tension modifier, and 0.01-5% of viscosity modifier by weight. The method of manufacturing the ink composition includes steps of: dispersing the bipolar light emission component in the solvent firstly, and then adding the viscosity modifier and the surface tension modifier under stirring, so as to obtain the ink composition. By using the ink composition, specific hole and electron transport layers provided in the organic light-emitting diode manufactured by inkjet printing may be omitted, thereby simplifying the structure of the organic light-emitting diode. Moreover, the ink composition has suitable viscosity, surface tension, and volatility.

Novel reaction media for electron donating and electron accepting components in colour-change compositions are described. The compound is of formula (I): wherein R.sub.1, and R.sub.2 are selected from a linear or branched alkyl group, alkenyl group, alkoxy group, aryl group and an alkylene aryl group having from 6 to 22 carbon atoms; X.sub.1 and X.sub.2 are selected from —OC(O)—, —CO.sub.2— and O; R.sub.3, R.sub.4 and R.sub.5 are selected from hydrogen and an linear or branched alkyl group, cycloalkyl group, alkenyl group, alkoxy group, aryl and alkylene aryl group; R.sub.6 is selected from hydrogen, R.sub.3, —X.sub.1R.sub.1 and aryl and halogen; Y.sub.1 Y.sub.2 Y.sub.3 and Y.sub.4 are selected from hydrogen, R.sub.3, —OR.sub.3 and halogen; a is 0 to 4; b is 0 or 1; x and y are independently is 0 or 1 provided that where x and y are 0, a is 0 and b is 1 and R.sub.6 is —CO.sub.2R.sub.1; and wherein when a is 0 and b is 1 and R.sub.5 or R.sub.6 is phenyl, R.sub.6 and R.sub.5 respectively are not hydrogen or C.sub.1-7alkyl. The compounds are useful in ink compositions, writing implements containing the compound and medical and industrial applications in which temperature sensitive colour change may be required. ##STR00001##