Oblaat

In Japan, oblaat (, oburāto) is a thin, edible layer of starch used to wrap some candies and pharmaceuticals, similar to capsules.
Description.
Many types of dagashi Japanese candy are wrapped in oblaat, which is an edible, thin cellophane made of rice starch. It has no taste nor odor, and is transparent. It is useful to preserve gelatinous sweets by absorbing humidity. In America, these films are called oblate discs, blate papes, and edible films. They're most commonly used to take powdered herbs, supplements, and medications, allowing the user to consume multiple grams at one time more quickly and pleasantly than with capsules or other methods. 
Etymology.
The name comes from the Dutch word "oblaat".
History.
Oblaat was introduced to Japan by Dutch pharmaceutical companies in the late 19th century to wrap bad tasting medicine so that it could be swallowed without tasting any bitter powder. However, Dagashi candy isn't wrapped in oblaat because it tastes bad; it's wrapped in oblaat to keep the pieces of candy from sticking together.