KR100477118B1 - A layer film sheet of intercepting light for personal computer printing - Google Patents

Abstract

   In the light-shielding laminated film sheet for personal computer real-life printing, the light-shielding layer serving as the metal vacuum deposition layer is laminated with the light-shielding layer of synthetic resin, thereby eliminating the problems caused by the heterogeneity of the conventional synthetic resin material and the metal-deposited layer, as well as improving bending resistance. The present invention relates to a light-shielding laminated film sheet for PC yarn prints, which greatly improves the quality of the whole product.

Description

   Shading film sheet for PC real-life printing {A LAYER FILM SHEET OF INTERCEPTING LIGHT FOR PERSONAL COMPUTER PRINTING}

   BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding laminated film for personal computer photorealistic printing. Specifically, when the photorealistic printed laminated film sheet is used for advertisement or promotional purposes, the image is clearly seen due to scattering phenomenon due to light transmission in the back direction. The present invention relates to a light-shielding laminated film for PC real-life printing in which a light shielding layer is laminated on the live-printing laminated film layer in order to prevent it from being seen or dizzy.

   As a laminated sheet for a conventional personal computer photo print, a laminated film sheet having light shielding properties is made of aluminum vacuum deposition on a polyester film, an extrusion lamination method using a T-die, and a gravure printing method. A light shielding laminated film sheet for PC real-world printing, which is laminated in the order of a white ink media layer, a primer layer, a synthetic resin film layer, an aluminum vacuum deposition layer, a white adhesive layer, and a synthetic resin film layer, may be used.

   Such a light-shielding laminated film sheet has an aluminum vacuum deposition layer, which is extremely excellent in blocking light. However, since the aluminum vacuum deposition layer is a metal thin film, the bending resistance is weak due to weak bending resistance. Therefore, the phenomenon of light transmission between minute gaps occurs, and the aluminum vacuum deposition thin film vacuum-deposited on the polyester film has a large difference in mutual thermal expansion coefficient. Therefore, the shearing force between the two sides is greatly increased by repeated expansion and contraction according to the temperature difference that changes frequently. As a result, desorption of cotton and cotton occurs, water, gas, oxygen, etc. penetrate into the gaps, and the metal deposition layer is oxidized and corroded, resulting in faint printed images and stains. Will also fall.

   The present invention has been made in view of solving the problems of the conventional film-printed light-shielding laminated film sheet laminated with a metal vacuum deposition layer as a light-shielding layer, and specifically, to provide a superior light-shielding laminated film, and specifically, a laminated layer in which a light-shielding layer is successively laminated. It is composed of similar materials to improve adhesion between layers and solve problems that occur between different materials (layers), that is, to improve the bending resistance of laminated films and to prevent peeling between layers due to the difference in thermal expansion coefficient. It is an object of the present invention to provide a light-shielding laminated film sheet for PC real-life printing with excellent light-shielding property by improving the durability and harmonizing the laminated layer so that the printed image can be stored for a long time without being deteriorated.

   The present invention relates to a light-shielding laminated film sheet for PC real-life printing, and more particularly, to provide excellent light-shielding properties due to the heterogeneous material stacking of the light-shielding laminated film for real-life PC-printing, which is laminated with a conventional metal deposition layer as a light-shielding layer. It is a light-shielding laminated film sheet for PC real-life printing, which is composed of a light-shielding layer made of a synthetic resin material similar to the other materials constituting the laminated sheet. Specifically, an ink media layer is formed on the white polyethylene thin film layer as a base layer. The bottom side of the white poly ethylene thin film layer is adhesively laminated with the corona discharge treated polyester surface, and the other side of the polyester film is also corona discharge treated, and the black PE thin film layer is adhesively laminated on the back side, and the release layer (adhesive layer) is underneath. The composition of light-shielding laminated film sheets for PC yarn prints laminated in the order of release paper can do.

   In order to understand the composition of the light-shielding laminated film sheet in more detail, first, a method of preparing the light-shielding laminated film sheet has a water-soluble imine-based primer (GMP200: CASNO 7732-18-) on one side of a corona discharge-treated polyester film. 5) The solution is coated by roller transfer method and hot-air-dried, and then the white PE molten thin film layer is extruded using T-die to form a white PE thin film layer. On the other side, the primer (GMP200) solution was coated by roller transfer method and hot-air dried. Then, the black PE molten thin film layer was extruded using T-die to form a black PE thin film layer, and then the vinyl on the white PE thin film layer. After applying and drying the primer adhesive selected from acrylic, urethane, and urethane, an ink media layer is formed with a comma coat, and a black PE thin film is formed. There was formed a coating layer of the release layer of the pressure-sensitive adhesive it is possible to obtain a full standing product because impregnated with a release paper thereon.

   In the structure of the laminated film sheet obtained by the above method, as shown in Fig. 1, the surface layer is an ink media layer (1), the next layer is a primer (adhesive) layer (2), a white PE thin film layer (3), and a primer (adhesive) layer (4). ), Polyester film layer (5), primer (adhesive) layer (6), black PE thin film layer (7), release layer (adhesive layer) (8), release paper (9) laminated in order of light shielding It can be called a laminated film sheet.

   Here, the ink media layer is composed of a conventional ink media composition mainly composed of microsilica particles, and the adhesive (VMTA) layer is a vinyl, acrylic or polyurethane primer alone or a mixed adhesive thereof, and a white PE thin layer or black PE. The adhesive for bonding the thin film layer and the polyester film is an aqueous imine-based primer adhesive.

   In addition, the white PE thin film layer is a thin film layer formed by melt-extrusion of a low density polyethylene styrene with calcium carbonate, titanium dioxide and a white pigment in a tee-die, and the black PE thin film layer is also a master in which carbon is added to the low density poly ethylene. It is a thin film layer formed by melt-extruding a bezel from a tee-die.

The specific specification will be described as an example. The ink media layer is about 30 microns thick, the white PE thin layer is 40 microns thick, the black PE thin layer is 30 microns thick, the polyester film is 50 microns thick, and both sides are corona discharged. It is a film.

In addition, the thickness of the adhesive layer between the ink media layer, the white PE thin film layer, the white PE thin film layer and the polyester film, the adhesive layer between the polyester film and the black PE thin film layer, and the black PE thin film layer and the release paper is the solvent during the coating of the adhesive. There is a slight difference depending on the amount of use, that is, the viscosity of the solution, but the coating is light enough to be only a few microns.

  The feature of the laminated film sheet for the actual printing configured in the above manner is that carbon black having excellent light blocking property is added, and the light blocking property of the black PE thin film layer is also excellent, and each laminated layer constituting the light-shielding laminated sheet, that is, the polyester film layer , Black or white PE thin film layer, adhesive layer composed of synthetic resin primer, etc., unlike conventional metal deposition layer as a light shielding layer, not only have similar physical properties but also reduce the shear force caused by the difference in coefficient of thermal expansion Light shearing lamination film for PC due diligence printing, which can prevent the peeling phenomenon between layers because it does not generate large shear force between layers, and can greatly improve the bending resistance of light shielding layer. Citra.

Such a shading laminated film sheet can be widely used as a general propaganda advertisement by printing, as well as propaganda advertisement prints on the outside of glass showcases, propaganda advertisement prints attached to transparent glass windows and glass doors, etc. Suitable light-shielding laminated film sheet for PC realistic print can be used.

   1 is a side cross-sectional view of a light-shielding laminated film sheet according to the present invention.

Claims (1)

   White PE thin film layer 3, primer (adhesive) layer 4, polyester film layer 5, primer (adhesive) layer 6, black PE thin film layer 7, release layer (adhesive layer) 8, A light-shielding laminated film sheet for PC real-life printing, in which a primer (adhesive) layer (2) and an ink media layer (1) are formed on the surface of the white PE thin film layer (3) of the base layer laminated in the order of the release paper (9).