| 配方类型： |
PAPER |
| 配方说明： |
Absorbent Tissue and Paper |
| 配制方法： |
The feel or "hand" of absorbent tissues, as well as rewetting properties, is enhanced by the surface application of one to three pounds of "Tergitol" Nonionic 15-S-9 or NPX per ton of paper. This can be accomplished by mist application of anhydrous surfactant, or by fine spray application of a solution (e.g., 10%) of the surfactant.
Although currently used wetstrength agents are not sizing agents per se, some of them do have a tendency to decrease the water absorbency of paper, particularly when rosin size of natural resin is present even in trace amounts. Both "Tergitol" Nonionics 15-S-9 and NPX are effective in maintaining the absorbency of wet-=strength paper containing melamine, urea, or the alkaline curing type wet-strength resins.
Corrugating medium and similar grades of paper and board require controlled absorbency for proper bite of water based adhesives. A small amount (less than 0.05% based on fiber) of "Tergitol" Nonionic 15-S-9 or NPX added to the slush stock is effective where faster ab |
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