A New Electrochemical Recorder Paper
Abstract
A new electrolytic electrochemical recorder paper utilizing a benzidine marking agent has been developed which has high sensitivity, wide dynamic range, and fine recording definition. The paper is further characterized by good wet strength and stability with respect to shelf-life and to aging of the recorded paper. The recording process is an oxidation reaction which permits the use of chemically inert, noncorrosive metal stylus or printing bar materials. The resultant blue marking provides high optical contrast with the light buff background. Experimental rolls of this recorder paper have been prepared in a continuous process by precipitating benzidine in the paper as the highly insoluble sulfate salt in the first two baths and adding in the third bath the inorganic salts which function as buffering agents and electrolytes to provide electrical conductance. The paper is then adjusted to the proper moisture content and wound into rolls which are sealed in polythene bags and stored in sealed metal containers. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 11, 1952
- Accession Number
- AD0495964
Entities
People
- D. L. Venezky
- E. J. Kohn
- F. J. Ross
- G. F. Asbury Sr
- R. G. Rice
Organizations
- United States Naval Research Laboratory