Fillers in varying proportions may replace the soda ash in the above formulae. It is of course understood that the soap has been previously made and run as molten soap into the crutcher.
The following soap powders will not dry up in the crutcher upon running, but are of the class which may be framed or run on the floor to solidify:
V
First saponify 100 parts house grease and 100 parts ordinary grease and make a run soap. Then use in crutcher either:
| Soap | 400 | lbs. |
| Filler | 575 | " |
| Hot water | 60 | " |
| or | ||
| Soap | 200 | lbs. |
| Hot water | 200 | " |
| Filler | 625 | " |
It would be a simple matter to write numerous additional formulae, but the above are typical. The manufacturer must judge for himself just what filling material to use. The filler indicated in the above formulae is therefore left open. A few formulae for more expensive powders than those given recently appeared among others in the "Seifensieder Zeitung"[9]:
| I | ||
| Powdered soap | 90 | lbs. |
| Sodium perborate | 10 | " |
The perborate should be added when the powder is perfectly dry or it loses its bleaching properties.
| II | ||
| Soap powder, 20 per cent. fat. | ||
| Cocoanut oil fatty acids | 25 | lbs. |
| Olein | 25 | " |
| Bone fat | 70 | " |
| Soda lye, 30 degs. B. | 90 | " |
| Water | 150 | " |
| Ammonium carbonate | 125 | " |
| III | ||
| Soap powder, 10 per cent. fat. | ||
| Cocoanut oil fatty acids | 20 | lbs. |
| Olein | 10 | " |
| Bone fat | 20 | " |
| Soda lye, 30 degs. B. | 30 | " |
| Water | 175 | " |
| Ammonium carbonate | 175 | " |