| 摘要 |
A non-oil-based release aid used in a creping process for releasing a paper web from a Yankee dryer in the manufacture of a paper product having a formu la for its block version as follows: R-(OC3H6)y(OC2H4)z OH; where R is a C8 to C20 alkyl or alkylaryl group, y plus z is greater than 20, and y is greater than z. The y moles of propylene oxide (OC3H6) and the z moles of ethylene oxide (OC2H4) may be added in random or block fashion. Examples of the chemical compound for the release aid are alkoxylated alkylphenols, alkoxylated fatty acids, and alkoxylated alcohols. A preferred chemical compound is an alkoxylated tall oil fatty acid. The release aid may optional ly comprise from about 0 % to about 20 % by weight of an emulsifying surfactant . The release aid may comprise 70 % to 100 % by weight of the chemical compoun d, 0 % to 20 % by weight of emulsifying surfactants, and 0 % to 10 % by weight water. The release aid provides lubrication between the doctor blade and the Yankee dryer; allows the release of the paper web from the Yankee dryer, and improves the absorbency of the paper product.
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