RESIN MOLDING AND MANUFACTURING METHOD OF THE SAME

• Main Authors: EBINA SOICHI, YAMADA KIICHI, YOSHINO KENSUKE, OSUMI HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 05.12.2019
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a resin molding forming a clear optical pattern in the inside, and to provide a manufacturing method of the same.SOLUTION: A resin molding 10 includes: a first resin material part 11 comprising transparent resin; a second resin material part 12 comprising transparent resin having a refraction index of light, different from that of the first resin material part 11; and an internal pattern surface 19 formed as a boundary between the first resin material part 11 and the second resin material part 12, and presenting a prescribed bent shape. Due to that light incident from the first resin material part 11 or the second resin material part 12 transmits the internal pattern surface 19, a prescribed pattern is visually formed.SELECTED DRAWING: Figure 3 【課題】内部に鮮明な光学的模様を形成する樹脂成形品およびその製造方法の提供。【解決手段】透明樹脂からなる第１樹脂材部１１と、第１樹脂材部１１とは光の屈折率が異なる透明樹脂からなる第２樹脂材部１２と、第１樹脂材部１１と第２樹脂材部１２との境界として形成された所定の曲折形状を呈する内部模様面１９を具備し、第１樹脂材部１１側または第２樹脂材部１２側から入射した光が内部模様面１９を透過することで、所定の模様が視覚的に形成される樹脂成形品１０。【選択図】図３