| 配方類型： |
INKS AND CARBON PAPER |
| 配方說明： |
Duplicating Stencils |
| 配方組成： |
Duplicating stencils are semi-plastic mats used for the preparation
of copy by means of a duplicating machine. The stencil consists
generally of a coating of highly plasticized nitrocellulose lacquer
deposited on one side of a specially prepared paper commonly referred to
as yoshino tissue. This paper is characterized by a fibrous structure
with a relatively open weave. It is highly absorbent and has greater
tear strength in one direction. The combination of special lacquer and |
| 配制方法： |
Procedure: The "Halowax" is dispersed in the "AA" Castor Oil with heat and stirring. It is then allowed to cool to room temperature. The film scrap is next cut in a closed container fitted with a slow-speed, explosion-proof mixer. The acetone, ethyl acetate, and 13A alcohol are filled into the mixer and the scrap added. When the film has been completely dissolved, the "Fastolux" blue paste is added, followed by "Halowax"/"AA" Castor Oil mixture, the "Ocenol," and the orthophenyl phenol. The mixture should be thoroughly stirred after each addition.
Then follows butyl stearate, oleic acid, and the mixture is then brought to final dilution with the anhydrous methanol. The entire mixture is thoroughly stirred and allowed to stand to remove bubbles. The mixture is drawn from the bottom through a strainer before use. |
|
