Combination writing board/reflecting screen sheet
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United States of America Patent
Stats
-
Dec 4, 2007
Grant Date -
N/A
app pub date -
Nov 6, 2000
filing date -
Nov 4, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A sheet for a writing board and a reflection type screen has excellent writability and erasability when used as a writing board and excellent anti-glare property without hot spots when used as a reflection type screen. This sheet includes a resin layer presenting a writing surface with unevenness having an arithmetical mean deviation (JIS-B-0601) of 1.0-4.0 .mu.m and a mean spacing of profile irregularities (JIS-B-0601) between adjacent protrusions of 30-300 .mu.m formed by embossing. The resin layer preferably contains as an ultraviolet ray curable resin. Since the unevenness is formed on the resin layer by embossing, ink does not penetrate the resin layer and hence the sheet has excellent erasability.
First Claim
Family
International Classification(s)
Cited Art Landscape
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