| 摘要 |
<p>The duplicating paper is coated and packaged in a manner avoiding the transfer of handwriting etc. to sheets other than those being used. A package has two adjacent stacks and the sheets in the stacks are connected along abutting edges. The top faces of the sheets in the respective stacks are coated differently i.e. incorporate either transmission elements or reception elements, the reverse faces having a neutral coating. Alternatively the functions of the major sheet faces may be reversed, and the system use sheets with a neutral major face and differentially coated alternate vertical bands on the other. The neutral coatings may tear off for disposal.</p> |
