Multilayer paper system

摘要

A multilayer paper system that allows a user to write or fill in forms while non-users are unable to see what is written through the use of a first layer privacy screen with embedded micro-louvers, a second color change layer with microencapsulated dye, and a stylus type pen that causes color change to occur on the second layer while reducing the ability for those next to or around the person to discern what is written on the sheet.

主权项

1. A method of administering a test, comprising:
a) providing a scannable response form to a test taker, said form comprising a first layer having embedded micro-louvers and a second layer having microencapsulated color changing agents; b) providing a stylus to said test taker; c) marking answers on said response form using said stylus, wherein pressure applied by said stylus causes said microencapsulated color changing agents to rupture; d) collecting said response form at the conclusion of said test; and e) grading said response form using an OMR device.