| 释义 |
primuline Chem.|ˈprɪmjuːliːn|
Also Primuline.
[f. primula + -ine5.]
A synthetic yellow dyestuff which is the sodium salt of the sulphonic acid derivative of primuline base (see below) and is used in the dyeing of cotton.
The dye may also contain other analogous salts.
1887Dyer & Calico Printer VII. 101/1 A new series of colours..are just now being brought out by Brooke, Simpson, & Spiller (Limited). These colours, the discovery of Mr. A. G. Green, promise to compete successfully with the direct cotton colours at present in the market. The basis of the series is a compound, to which the name of primuline has been given. 1919E. de B. Barnett Coal Tar Dyes 108 Primuline dyes cotton in bright yellow shades, but these are too fugitive to be of any value. 1950Thorpe's Dict. Appl. Chem. (ed. 4) X. 215/1 The sodium salts of the sulphonic acids of the higher thionated p-toluidines (primuline bases) were first manufactured..in 1887 under the name of ‘Primuline’ and employed for the production of so-called ‘ingrain colours’ by..diazotising and developing upon the fibre. 1968E. N. Abrahart Dyes v. 135 Among the direct dyes C.I. Direct Red 70..employs Primuline as diazo component and Schäffer's acid as coupling component.
2. Special Combs.: primuline base, a yellow thiazole derivative, C21H15N3S2, which is obtained when p-toluidine is heated with sulphur and is an intermediate in dye manufacture; loosely, any of the related compounds also formed by this process; primuline red, a red dyestuff obtained from primuline base by diazotization followed by coupling with β-naphthol.
1889Jrnl. Chem. Soc. LV. 228 The product is not homogeneous, but consists of about 50 per cent. of a base, C14H12N2S,..40 per cent. of primuline-base, and 10 per cent. of unaltered paratoluidine. 1913Thorpe's Dict. Appl. Chem. (ed. 2) IV. 385/1 These more condensed bases (‘primuline bases’) were obtained in larger amount by increasing the proportion of sulphur to 4½–5 atoms to 1 mol. amine. 1961Cockett & Hilton Dyeing of Cellulosic Fibres v. 156 Primuline Base may be sulphonated to give the monosulphonic acid, the sodium salt of which is the yellow dye Primuline, a direct dye for cellulosic fibres. 1968E. N. Abrahart Dyes v. 135 The sulphurization products of p-toluidine, primuline base and dehydrothio-p-toluidine are used..in the manufacture of some valuable cotton dyes.
1900Jrnl. Soc. Chem. Industry 30 Apr. 345/1 Primuline Red is obtained by dyeing with Primuline, diazotising, and developing with β-naphthol. 1917Jrnl. Soc. Dyers & Colourists XXXIII. 140/1, I replied by pointing out the greater fastness of Primuline Red compared to Benzopurpurine. |