PURPOSE: To obtain a sheet having flexibility which hardly wrinkles even when wind blows so that light can be well controlled by constituting the single fiber fineness made of a hydrophobic resin while using long fiber having a specified range of deniers as a raw material and constituting METSUKE (a fiber test) with a nonwoven fabric sheet having the specified range of unit weight.
CONSTITUTION: The METSUKE of the light controlling sheet for photographing is in 10-150g/m2 considering the light shielding property, durability, texture and cost. When METSUKE is in <10g/m2 and in >10 denier of single fiber fineness, light is hardly interrupted and controlling of light is not attained. When METSUKE is in >150g/m2 and in <0.03 denier in single fiber fineness, transmission of light is decreased. By constituting the single fiber fineness made of the hydrophobic resin with long fiber having 0.03-10 denier and METSUKE is constituted of the nonwoven fabric sheet having 10-150g/m2, the obtd. sheet has excellent water repellency and light shielding property and good flexibility so that wrinkles hardly generate even when wind blows and light can be preferably controlled.
YUASA SHINJI
FUKAI MINORU
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