| 配方类型： |
ELEMENTARY PREPARATIONS |
| 配方说明： |
Oil-and Greaseproofing
Paper and Fiberboard |
| 配方组成： |
This solution, applied by brush, spray, or dipping, will leave a
thin flim which is impervious to oil and grease. Applied to paper or
fiber containers, it will enable them to retain oils and greases
Sugar/0.6
Caustic Soda/0.1
Water/90.5
Sodium Salicylate/0.2
Glycerin/2.0
Starch/6.6 |
| 配制方法： |
This caustic soda is dissolved in the water. Then the starch is made into a thick paste by adding a portion of this solution. The paste is then added to the water. The resulting mixture is placed on a water bath and heated to about 85C; until all the starch granules have broken. The temperature is maintained about 1/2 hr longer at 85C. The other substances are then added and thoroughly mixed. Less water may be used if applied hot and then a thicker coating will result. |
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