Like John said, it is more of a generic, albeit thin, alpha cellulose matte paper. I don't think there is anything particularly "asian" about this rice paper from Hahn. There's no *ahem* asian mystique. I guess it's sorta like Hahn saying we don't have to go to China to get Chinese food...We've got a Chinese restaurant right here----in Germany.
There used to be a Hahnemühle Japon paper for inkjet printing, the same paper was sold by other companies much cheaper as No-Branda in The Netherlands: it was actually a Fire Retardent paper for posters, similar construction as Tyvek. So I am aware that what is called Rice Paper does not have to be Rice Paper. All very true. I have the sample here, it has no Asian flavor. It is a papier vergé - laid paper. That does not imply they make it in Germany. A sample book of Japanse papers that I have contains similar laid paper qualities starting from 35gsm called Kawasa, 70gsm called Hosho, 120gsm called Kaji. Rougher but an inkjet coating usually flattens the texture, the Awagami qualities show that too. True rice paper is often below 40gsm. Anybody in this trade knows papers like that are produced all over Asia; China, Nepal, Tibet, India, etc and sold abroad as "Japanese" if possible. That is why I wrote China as the generic place of production, not to give an Asian or Rice appeal. Most likely much cheaper to produce it there than here in Europe. That Chinese restaurant in Germany buys Chinese products where possible, for the same reason.
Edit; to contradict myself, Hahnemühle has a cotton paper (Echt Bütten) in its non-inkjet art paper catalog, category Specialty Papers, a 75gsm Programmpapier (code 105724). The vergé pattern of the Programm fits that of the "Rice Paper" but the mesh wire is less visible in the last. Add the inkjet coating and the weight could be close, Color is very similar. Both are in my SpectrumViz list, the Programm paper however measured several layers thick to show the paper white reflection of an unsized, uncoated cotton paper. The "Rice Paper" could be an HM product but it is described as 100 Alpha Cellulose.
Met vriendelijke groet, Ernsthttp://www.pigment-print.com/spectralplots/spectrumviz_1.htm
December 2012, 500+ inkjet media white spectral plots.