Embossing Arabic Letters and Numbers on New Raised-Line Polyethylene Paper: An Aid for the Blind

Science  03 Jul 1970:
Vol. 169, Issue 3940, pp. 94-95
DOI: 10.1126/science.169.3940.94


A new polyethylene paper may be marked on a hard surface with an ordinary oversize ball-point pen or dull pencil point. Where the paper is marked, a raised-line imprint appears on the same side of the paper as that used for writing. This imprint may be both felt and seen. Newly blinded and partially sighted persons are able to read ordinary Arabic letters and numerals after a few trials.