MANUFACTURING METHOD OF BACKSIDE PROTECTION SHEET FOR SOLAR BATTERY MODULE

• Main Author: ARIHARA KEITA
• Format: Patent
• Language: English; Japanese
• Published: 06.04.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SEMICONDUCTOR DEVICES; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a backside protection sheet for a solar battery module, which is superior in adhesion with an olefin-based sealant which constitutes a solar battery module, and which has a dark color appearance, and which can contribute to the enhancement in the designability and power generation efficiency of a solar battery module with the aid of an infrared light-permeable dark color ink layer provided on the surface of a base resin layer.SOLUTION: A method for manufacturing a backside protection sheet for a solar battery module comprises the steps of: applying a near infrared light permeable dark color ink to the surface of a base resin layer 63 to form an infrared light permeable dark color layer 62; and forming an easily-adherable layer 61 over the base resin layer 63 by applying a primer composition so as to cover the infrared light permeable dark color layer 62. The primer composition comprises an olefin-based resin, and a solvent including an aqueous medium as its main solvent.SELECTED DRAWING: Figure 2 【課題】基材樹脂層の表面に赤外線透過性暗色インキ層が設けられていることにより、太陽電池モジュールの意匠性と発電効率の向上に寄与することができる暗色の外観を有する裏面保護シートであって、太陽電池モジュールを構成するオレフィン系の封止材との接着性にも優れる太陽電池モジュール用の裏面保護シートを提供すること。【解決手段】基材樹脂層６３の表面に、近赤外線を透過する暗色インキを塗膜形成して赤外線透過性暗色層６２を形成する工程と、基材樹脂層６３上に赤外線透過性暗色層６２を被覆してプライマー組成物を塗布することによって易接着層６１を形成する工程と、を備え、同プライマー組成物は、オレフィン系樹脂と、水性媒体を主溶剤とする溶剤と、を含んでなる、太陽電池モジュール用の裏面保護シートの製造方法による。【選択図】図２