Fujiflex is a white polyester (PET) film. (Mitsubishi) Pictorico PPF150 Pro High Gloss Film 260gsm is an inkjet medium that is known for its high gloss and whiteness. Canon has a similar film with a slight pearlescent effect. Ilford has one too.
Met vriendelijke groet, Ernsthttp://www.pigment-print.com/spectralplots/spectrumviz_1.htm
450+ inkjet paper white spectral plots, November 2012:
rearranged categories, still adding Photokina paper samples.