| 摘要 |
The wetting out properties of alkali solutions used for the treatment of natural and artificial cellulosic fibres with alkali, e.g. in mercerizing, is improved by the addition thereto of phenols, mono or polyhydric alcohols containing at least one carbon atom more than the number of hydroxy groups and ethers of polyhydric alcohols which still contain at least one free hydroxy group. The alcohols may be saturated or unsaturated and may be of aliphatic, arylaliphatic, hydroaromatic, or alicyclic nature and include ketonealcohols, e.g. diacetone alcohol. In examples, the following mixtures are used : (1) xylenol (technical mixture), methylcyclohexanol (mixture) and diethyleneglycol-mono-n-butyl ether or glycerine-a-mono-xylenylether (prepared from a technical mixture of xylenols); (2) cresol (mixture), tetramethylethyl-eneglycol (pinacone) and the glycerine-a-mono-xylenylether used in the first example. The following alcohols are also mentioned: propyl, butyl, amyl, allyl, and benzyl alcohols, hydrogenated phenols and naphthols and homologues of glycol and glycerine, and the following ethers: mono (alkyl, aralkyl, or aryl) ethers of glycol and polyethyleneglycol, the polyethyleneglycols and mono- and di-alkyl ethers and the acetals of glycerine. Specification 259,394, [Class 42 (i), Fabrics, Finishing &c.], is referred to. Glycerine-a-monoxylenylether (mixture) is prepared by treating sodium xylenolate, obtained from a technical xylenol mixture, and glycerine mono-chlorhydrin. Diethyleneglycolmono-n-butylether is prepared by the action of excess of ethylene oxide upon n-butylalcohol.
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