Patent GB-374214-A (GB)
Title: Process for the treatment of natural and artificial cellulosic fibres with alkali
IPC: D06M13/46
Filed: 1931-04-23
Abstract: 374,214. Wetting &c. agents. CHEMISCHE FABRIK VORM. SANDOZ, Basle, Switzerland. April 23, 1931, No. 12102. Convention date, April 23, 1930. [Classes 2 (iii) and 15 (ii).] In the treatment of natural and artificial cellulosic fibres with alkalies of mercerizing strength, the wetting action of the alkali lyes is increased by the addition of sulphonated fats, fatty oils, fatty acids or aromatic hydrocarbons together with mixtures of phenols with alcohols or any of the mixtures containing phenols the use of which is claimed in Specifications 279,784, [Class 15 (ii), Dyeing, Processes &c. for], 359,399, 360,472, 364,844 or 365,323, namely, mixtures of phenols with aromatic hydrogenated compounds, e.g., cyclehexanol, methylcyclohexanol or tetrahydronaphthol, ethers of polyhydric alcohols containing at least one free hydroxy group, e.g. glycol mono iso propyl, n-butyl, benzyl or p-tolyl ether, di- or triethylene glycol, glycerine monoxylenylether, glycerine dimethyl ether; acetoneglycerine or the acetal from glycerine and cyclohexanone, polyhydric alcohols of the aliphatic, aryl-aliphatic or alicyclic series, which. contain at least one more carbon atom than the number of hydroxy groups, e.g. camphene glycol, glycols obtained by the oxidation of olefines, other than ethylene, polyhydric alcohols obtained by treating with organo. magnesium halides, polycarboxylic esters, polyketones, polyaldehydes, ketone and aldehyde carboxylic esters or polycarbonyl compounds, such as 1: 6-tetraethylhexane-1 : 6-diol obtained from ethyl magnesium bromide and adipic cyclohexyl ester, pinacones obtained by the reduction of ketones, or methylcyclohexanediols obtained by the oxidation of tetrahydrotoluol or nitrogen containing organic bases, e.g. di-n-propylamine, benzylamine, aniline, phenetidine, phenyltrimethylammoniummethylsulphate, triethanolamine, phenylhydrazine, pyrrol, pyridine or quinoline. In examples, the wetting action of strong caustic soda lyes used for mercerizing is increased by adding mixtures of (a) commercial xylenol mixture, diethyleneglycol mono nbutylether and sulphonated castor oil and (b) cresol mixture, commercial methyloyclohexanol mixture and sulphonated castor oil. Halogenated phenols or cresols or mixtures thereof may be used, and in place of sulphonated castor oil, mixtures of any sulplionated fat with naphthalene sulphonic acids, e.g. iso-propyl-, iso-butyl- or cyclohexyl-naphthalene sulphonic acid are suitable. The following alcohols are also specified: butyl, amyl, lauryl and benzyl alcohol, cyclohexanol and diacetone alcohol. Specification 305,509, [Class 2 (iii), Dyes &c.], also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use, in addition to the phenols and sulphonated compounds, of any compound not containing carboxylic or sulphonic groups having a wetting action in the presence of phenols and alkalies. N-carboxylic esters of substituted ethylene diamines, e.g. monooleylaminoethyltriethylammonium chloride are mentioned. This subject-matter does not appear in the Specification as accepted.