蛍光 けいこう増白 ぞうはく剤 ざい

keikōzō haku zai

1. Not an optical brightener.

1. Was an optical brightener.

1. With optical brightener; Using optical brightener

1. Optical brightener; Whitening agent

1. Not a fluorescent whitening agent.

1. It's not a fluorescent brightener.

1. Was optical brightener.

1. Optical brightener.; Whitening agent.

1. Not a fluorescent whitening agent.

1. Wasn't a fluorescent brightener.; Wasn't optical brightener.

1. Probably a fluorescent whitening agent.

1. Was not an optical brightener.; Was not a fluorescent whitening agent.

1. Wasn't a fluorescent whitening agent.; Wasn't optical brightener.

1. Probably optical brightener.

1. Was not an optical brightener.; Was not a fluorescent whitening agent.

1. If it were a fluorescent whitening agent; If it was a fluorescent whitening agent

1. If it is a fluorescent whitening agent; If it’s a fluorescent brightener

1. If fluorescent whitening agent; When fluorescent whitening agent