A coiled metal substrate with a faux galvanized surface appearance. The faux galvanized surface of the substrate including a spangle print pattern of polyvinylidene fluoride (PFDV) flexographically applied to the metal substrate. Atop the PFDV print pattern is semi-transparent coating of fluoroethylene vinyl ether (FEVE) flexographically applied atop the spangle print pattern of PFDV.

A system (10, 110) includes: (i) a flexible intermediate transfer member (ITM) (44, 500, 600), including: a stack of: In (a) a first layer (602), located at an outer surface of the ITM (44, 500, 600), configured to receive ink droplets to form an ink image thereon, and to transfer the ink image to a target substrate (50, 51), and (b) a second layer (603) including a matrix holding particles (622), configured to receive optical radiation (99) passing through the first layer (602), and to heat the ITM (44, 500, 600) by absorbing the optical radiation (99); (ii) an illumination assembly (113), configured to dry the ink droplets by directing the optical radiation (99) to impinge on the particles (622); and (iii) a temperature control assembly (121), configured to control a temperature of the ITM (44, 500, 600) by directing a gas (101) to the ITM (44, 500, 600).

A thermal transfer sheet according to the present disclosure includes a first substrate and a metallic luster layer containing a metal pigment, the metallic luster layer having a 45-degree specular gloss in the range of 30% to 80%.

A protective film that can be included in multi-layer film laminates for use in marketing, advertising campaigns, particularly outdoor or other environment impacted promotions and safety applications. The film includes at least two different polyurethane polymers and is free or substantially free of polyvinyl chloride based polymer. One polyurethane has an ultimate elongation less than 200%, and another polyurethane has an ultimate elongation more than 400%. The film may be transparent, translucent, clear or have other desirable optical properties.

An illustrative dye sublimation apparatus may comprise a pressure housing in the heating component. The pressure housing may apply a positive pressure on a membrane covering a combination of a printed sheet and a substrate. The positive pressure applied by the pressure housing may cause the printed sheet and substrate to snugly press against each other throughout a heating cycle. Furthermore, the positive pressure applied by the pressure housing may be even or approximately even throughout an upper surface of the membrane. The dye sublimation apparatus may utilize the pressure housing in addition or as an alternative to a negative pressure applied by a vacuum pump.

An illustrative dye sublimation apparatus may comprise a pressure housing in the heating component. The pressure housing may apply a positive pressure on a membrane covering a combination of a printed sheet and a substrate. The positive pressure applied by the pressure housing may cause the printed sheet and substrate to snugly press against each other throughout a heating cycle. Furthermore, the positive pressure applied by the pressure housing may be even or approximately even throughout an upper surface of the membrane. The dye sublimation apparatus may utilize the pressure housing in addition or as an alternative to a negative pressure applied by a vacuum pump.

A method of fabricating metasurface on skin for blood glucose detection, which relates to a flexible wearable electronic technology in healthcare. The blood glucose detectioncomprises: designing metasurface with a resonant ring structure cell, and building a model by simulating a relationship between blood glucose concentration and electromagnetic absorption property of the metasurface; preparing the metasurface on the skin; scanning the metasurface on the skin under different frequencies electromagnetic wave and acquiring a relationship curve between S-11 parameter and frequency; the change of blood glucose concentration is determined according to the resonant peak frequency shift in the relationship curve based on the model. It realizes the electromagnetic wave metasurface with a good skin biocompatibility, a stable electromagnetic property and a high glucose detection accuracy is directly structured on the skin, moreover, it can directly measure human blood glucose concentration without sampling human blood, realizing real non-invasive human blood glucose detection.

A method of fabricating metasurface on skin for blood glucose detection, which relates to a flexible wearable electronic technology in healthcare. The blood glucose detectioncomprises: designing metasurface with a resonant ring structure cell, and building a model by simulating a relationship between blood glucose concentration and electromagnetic absorption property of the metasurface; preparing the metasurface on the skin; scanning the metasurface on the skin under different frequencies electromagnetic wave and acquiring a relationship curve between S-11 parameter and frequency; the change of blood glucose concentration is determined according to the resonant peak frequency shift in the relationship curve based on the model. It realizes the electromagnetic wave metasurface with a good skin biocompatibility, a stable electromagnetic property and a high glucose detection accuracy is directly structured on the skin, moreover, it can directly measure human blood glucose concentration without sampling human blood, realizing real non-invasive human blood glucose detection.

An inkjet ink for a glass substrate can enable formation of an aesthetic image with high concealability on the surface of the glass substrate. The inkjet ink disclosed here can include: an inorganic solid including an inorganic pigment that develops a color except for black and a glass frit; a monomer component having a photocuring property; and a photoinitiator. In the inkjet ink, a volume ratio of the inorganic solid in a case where an ink total volume is 100 volume % can be 35 volume % or less, a volume ratio of the inorganic pigment in the case where a total volume of the inorganic solid is 100 volume % can be 15 volume % or more and less than 90 volume %, and a volume ratio of the inorganic pigment to the photoinitiator can be 11 times or less.

Disclosed are a pattern transfer apparatus and a pattern transfer method. The pattern transfer method includes: transferring a pattern to a flexible printing substrate; and transferring the pattern on the printing substrate to a bending surface of a rigid carrier through an elastic rubber head.