A temperature-indicator product comprising a visual indicator comprising a thermochromic colour-memory composition and comprising an electron-donating colouring organic compound (A), an electron-accepting colouring organic compound (B) and reaction medium compound (C). The visual indicator comprises a first portion comprising a first thermochromic colour-change composition in its lower temperature state and a second portion comprising a second thermochromic colour-change composition in its higher temperature state. The product is useful as a tamper-evident indicator or as a freeze indicator.

A method of manufacturing a semiconductor package which is at least in part covered by an electromagnetic interference shielding layer. The method includes at least these steps: i. providing the semiconductor package and an ink composition having at least a compound comprising at least one metal precursor and at least one organic compound; ii. applying at least a part of the ink composition onto the semiconductor package, wherein a precursor layer is formed; and iii. treating the precursor layer with an irradiation of a peak wavelength in the range from 100 nm to 1 mm. Further disclosed is a semiconductor package comprising an electromagnetic interference shielding layer comprising at least one metal, wherein the semiconductor package is obtainable by the aforementioned method. Still further disclosed are a semiconductor package comprising an electromagnetic interference shielding layer having a specific conductance and thickness, and uses of an ink composition.

A method of manufacturing a semiconductor package which is at least in part covered by an electromagnetic interference shielding layer. The method includes at least these steps: i. providing the semiconductor package and an ink composition having at least a compound comprising at least one metal precursor and at least one organic compound; ii. applying at least a part of the ink composition onto the semiconductor package, wherein a precursor layer is formed; and iii. treating the precursor layer with an irradiation of a peak wavelength in the range from 100 nm to 1 mm. Further disclosed is a semiconductor package comprising an electromagnetic interference shielding layer comprising at least one metal, wherein the semiconductor package is obtainable by the aforementioned method. Still further disclosed are a semiconductor package comprising an electromagnetic interference shielding layer having a specific conductance and thickness, and uses of an ink composition.

A quantum dot ink, a method of manufacturing a display panel, and the display panel are provided. The quantum dot ink includes an organic solvent and quantum dots dispersed in the organic solvent. The quantum dots include luminescent quantum dots and blocking quantum dots. Dispersion effect of the quantum dot ink during inkjet printing is inhibited by adding the blocking quantum dots into the quantum do ink. This can prevent a coffee ring effect, and enhance smoothness and uniformity of a quantum dot film surface, thereby allowing the display panel to exhibit excellent display quality.

A quantum dot ink, a method of manufacturing a display panel, and the display panel are provided. The quantum dot ink includes an organic solvent and quantum dots dispersed in the organic solvent. The quantum dots include luminescent quantum dots and blocking quantum dots. Dispersion effect of the quantum dot ink during inkjet printing is inhibited by adding the blocking quantum dots into the quantum do ink. This can prevent a coffee ring effect, and enhance smoothness and uniformity of a quantum dot film surface, thereby allowing the display panel to exhibit excellent display quality.

A stretchable and/or flexible conductive ink has conductive particles admixed with a binder comprising a neoprene. The mass of the conductive particles in the ink is in a range of 6.0 to 10.4 times greater than the mass of the neoprene in the ink. When deposited on a substrate, the ink provides suitably stretchable and flexible conductive elements. The conductive elements may be stretchable, flexible electronic and/or thermal devices.

A stretchable and/or flexible conductive ink has conductive particles admixed with a binder comprising a neoprene. The mass of the conductive particles in the ink is in a range of 6.0 to 10.4 times greater than the mass of the neoprene in the ink. When deposited on a substrate, the ink provides suitably stretchable and flexible conductive elements. The conductive elements may be stretchable, flexible electronic and/or thermal devices.

Provided are an ink jet ink composition for a polyvinyl chloride building material, an image recording method, and an image recorded article. The ink jet ink composition contains a monomer A that is a polymerizable monomer having a basic group including a nitrogen atom and an inorganic pigment including at least one element selected from the group consisting of cobalt, aluminum, iron, bismuth, vanadium, titanium, and carbon.

Provided are an ink jet ink composition for a polyvinyl chloride building material, an image recording method, and an image recorded article. The ink jet ink composition contains a monomer A that is a polymerizable monomer having a basic group including a nitrogen atom and an inorganic pigment including at least one element selected from the group consisting of cobalt, aluminum, iron, bismuth, vanadium, titanium, and carbon.

An ink comprises (i) a carrier; (ii) graphene and/or graphene oxide particles dispersed in the carrier; and (iii) a viral active and/or anti-microbial component adhered to the graphene and/or graphene oxide particles.