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--- list3:ff:ff7:carddass1 [2022/06/09 04:25] – headlibrarian
+++ list3:ff:ff7:carddass1 [2024/05/05 16:43] (current) – external edit 127.0.0.1
@@ Line 15: / Line 15: @@
 ==== Set Notes ====
-This is sometimes called a PP set, but it is made by Bandai and is actually a Carddass set.  This site (http://www001.upp.so-net.ne.jp/yumetama/trading/FF7.html) says 1 - 2 are "difura" cards while 3 - 4 are prisms.  Most English language sites treat the two types as the same.
+This is sometimes called a PP set, but it is made by Bandai and is actually a Carddass set.  It may also be called the vending card set, since it was originally sold through vending machines. This site (http://www001.upp.so-net.ne.jp/yumetama/trading/FF7.html) says 1 - 2 are "difura" cards while 3 - 4 are prisms.  Most English language sites treat the two types as the same.
+About difra cards: Difra (ディフラ) is short for diffraction, these are diffraction foils, designed to reflect the light differently at different angles.  https://www.seal-koubou.com/lab/detail/53 従来の箔押し加工技術では、表現の幅に限界がありました。しかし、技術の革新により、小さい文字や図柄の表現が可能になりました。たとえば、金属の被膜の表面に微細なエンボス加工を施す「マイクロエンボス」技術や、光の反射を意図的に作り出せる「ディフラ加工」技術などです。
+マイクロエンボスによる箔押しは、細かい凹凸によって控えめな光沢感を演出できます。ディフラ加工では、見る角度によって光が揺れるように表現できるため、見る度に異なる表情を楽しめる仕上がりになります。
 ==== Sources/References ====

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