| 配方类型： |
TEXTILES |
| 配方说明： |
Textile Warp Sizing |
| 配方组成： |
35% Hydrogen Peroxide/68.6 fl. oz.
1% Copper Sulfate Solution/50 cc.
Water/150 gal.
"Texavon" DS Oil/1 qt.
Tallow/5 lb.
"Royal" Tapioca Starch/100 lb.
Soda Ash/2.5 oz. |
| 配制方法： |
In a copper kettle, these ingredients are added in the order given and with constant stirring. With full steam heating, the gel point (165'F.) is reached in 12 minutes and the processing temperature of 202'F., in 18 minutes. The batch is kept at 202'F. for another 20 minutes. The initial pH of the cold slurry is 8.3 and the end pH of the cooked batch (determined on a cooled sample) is 6.5. the starch paste is used to size 22/1 warps on the slasher at 204'F. and the yarn dried to 5.25% regain. The copper content of the yarn dried to 5.25% regain. The copper content of the yarn is approximately 0.0001%, i.e., well below the 0.002% limit set by ASTM specifications for goods to be rubberized. |
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