Abstract: An ink-sack-replaceable ink cartridge includes a cartridge body, which includes a bottom wall, two lateral walls extending upward from two sides of the bottom wall, and two end walls extending upward from two ends of the bottom wall and connected to the lateral walls. The bottom wall, the lateral walls, and the end walls jointly define a receiving space. The bottom wall is formed with a through hole. Each of the lateral walls includes a cartridge-body slide coupling section. A cartridge cover includes a top wall and two side walls extending downward from two sides of the top wall. Each of the side walls includes a cartridge-cover slide coupling section. The cartridge-cover slide coupling sections are slidably connectable with the cartridge-body slide coupling sections, so that the cartridge cover is combinable with and separable from the cartridge body through slidable connection for closing or opening the receiving space.

Abstract: A connector structure of an ink pouch includes a connector body including a joining section, a sealing section, and an ink passage extending through the joining section and the sealing section, the sealing section having a hollow fitting peg, insertion slots, and an annular retaining groove in communication with the insertion slots; a sealing cap including a pressing section and a fitting trough corresponding in position to the pressing section and engaging and retaining sections, each of which has an insertion arm and an engaging block protruding from the insertion arm; and a flexible plug. To combine, the flexible plug is positioned in the fitting trough and the insertion arms of the engaging and retaining sections are inserted into the insertion slots to have the engaging blocks protrude into the annular retaining groove. The fitting peg is received in the fitting trough and the flexible plug closes the ink passage.

Abstract: The present invention provides a nano-ranged wide color gamut and environmental-friendly UV inkjet printing system for a hard substrate comprising a carrier, an ink supplier, a printing head and a controller. The carrier receives the hard substrate thereon and the ink supplier includes a container space for containing an ink. The color gamut of the ink comprises basic colors of RYBK. The printing head receives the ink from the ink supplier, and the controller generates a control signal to control the printing head to spray coating the ink onto the surface of the hard substrate directly. The present invention is able to print the ink directly onto the surface of the hard substrate while utilizing the UV light for curing the ink into solid. The ink exhibits the physical properties of low surface tension, nano particles, environmental friendly, UV excitable, short duration of drying, great adhesiveness and high transparency.

Abstract: A method of circuit layout by photosensitive environment-friendly ink, which is used in a printed circuit board having a copper foil layer. The method comprises: providing photosensitive environment-friendly ink; disposing a circuit layout pattern, and injecting the photosensitive environment-friendly ink on the copper foil layer according to the circuit layout pattern to form the printed circuit board having the circuit layout pattern thereon; exposing the printed circuit board under light to have the photosensitive environment-friendly ink reacted with ultraviolet light in the light; and copper cleaning and alkaline cleaning the copper foil layer to expose the circuit layout pattern corresponding to the photosensitive environment-friendly ink on the printed circuit board.

Abstract: A nano wide color gamut transparent environment-friendly inkjet ink composition used on a base, which comprises color paste, mixed solvent, resin and additive. The color paste is used for polymerizing red toner, yellow toner, blue toner and black toner having nanoparticles. The mixed solvent is used for diluting the ink composition and being a carrier of the ink composition. The resin is used for providing drip-drying, dispersity and glossiness of the ink composition. The ink composition of the invention can be used to achieve high permeability, wide color gamut, drip drying, low ink bleeding, and high resolution.