Patent GB-191513204-A (GB)
Title: A Method of Producing Fast Dyeings.
Inventor: IMRAY OLIVER
IPC: D06P1/10
Filed: 1915-09-15
Abstract: 13,204. Imray, O., [Society of Chemical Industry in Basle]. Sept. 15. Mordanting; printing. -Fast shades are produced bv dyeing or printing on animal or vegetable fibres with chrome mordants such of the copper compounds of o-oxyazo dyes, obtainable by the processes described in Specifications 1611/15 and 12,249/15, as contain, in addition to the o-oxyazo group, a carboxyl group in the diazo component or a hydroxyl and a carboxyl group in the second component. The copper compounds may be dyed on previously chromed wool, or in a single bath with chromates or chromium salts; or the dyeing in an acid bath may be afterchromed ; or they may be printed on:animal or vegetable fibres with chrome mordants, or dyed on chrome-mordanted cotton. Instead of using the prepared copper compounds, they may be produced on the animal fibre and subsequently chromed, or they may be produced on previously chromed animal fibre, or the fibre may be dyed in a bath containing the dye, copper salt, and chromate. Examples of dye-baths and printing- pastes for carrying out each of the above methods are given. The shades obtained by the use of the following dyes are tabulated, together with the shades obtained with the dyes alone, or the dyes with chromium or copper alone: monoazo dyes from 2-aminophenol-6-carboxylic acid and 1:8:2:4-aminonaphthol disulphonic acid ; 4-nitro-2-aminophenol-6-carboxylic acid and 1:8:2:4- or 1:8:3:6-aminonaphthol disulphonic acid, 1:8:3:6-dioxynaphthalene disulphonic acid, 1:4-, 1:5-, or 2:6-naphthol sulphonic acid, 2:3:6-, 1:3:6-, or 1:3:8-naphthol disulphonic acid, 2:8:6-, 1:5:7-, or 2:5:7- aminonaphthol sulphonic acid, phenyl- or benzoyl - 2 : 5 : 7 - acid, m - aminophenol, salicylic acid, o-cresotinic acid, resorcin, #-oxynaphthoic acid, 3-oxy-1-thionaphthene, diketohydroindene, or benzoylacetic-o-carboxylic acid; 2- aminophenol-4-sulphonic-6-carboxylic acid and #-naphthol, 1:5-, 2:6-, or 1:4-naphthol sulphonic acid, alpha-naphthylamine, 1:5-aminonaphthol, alpha- or #-oxynaphthoic acid, 1:8:5-aminonaphthol sulphonic acid, 1:8:2:4-aminonaphthol disulphonic acid, 1-phenyl-3-methyl-5-pyrazolone, diaminodiphenylamine monosulphonic acid, acetoacetic anilide, 3-oxy-1-thionaphthene, diketohydroindene, perinaphthindandione, or benzoylacetic-o-carboxylic acid; 4-chlor-2-aminophenol-6-carboxylic acid and 1:8:2:4- or 1:8:3:6-aminonaphthol disulphonic acid, 1:4-, 1:5-, or 2:6-naphthol sulphonic acid, 2:3:6-, 1:4:8-, or 1:3:8-naphthol disulphonic acid, 2:5:7-, 2:8:6-, or 1:8:4-aminonaphthol sulphonic acid, 1:8:3:6-dioxynaphthalene disulphonic acid, resorcin, or 1-4<1>-sulphophenyl-3- methyl-5-pyrazolone; 2-aminophenol-4-carboxylic acid and 1:8:2:4- or 1:8:3:6-aminonaphthol disulphonic acid; 2-aminophenol-4-sulphonic acid and salicylic acid, #-oxynaphthoic acid, 1- naphthol-5-carboxylic acid, or 4<1>-oxy- 3'-carboxy-1-phenyl-3-methyl-5-pyrazolone; 6-nitro- 2-aminophenol-4-sulphonic acid and #-oxynaphthoic acid; 6-mitro-4-methyl-2-aminophenol, 4- nitro-2-aminophenol, or 1:2:4-aminonaphthol sulphonic acid, and 4<1>-oxy-3<1>-carboxy-1-phenyl- 3-methyl-5-pyrazolone; 1 : 2 : 4 - aminonaphthol sulphonic acid and 1-naphthol-5-carboxylic acid; secondary disazo dyes from 4-chlor-2- aminophenol-6-carboxylic acid, 1:6-naphthylamine sulphonic acid, and 2:5:7-aminonaphthol sulphonic acid, 1:8:3:6-aminonaphthol disulphonic acid, 2:6-naphthol sulphonic acid, or 2:3: 6-naphthol disulphonic acid. ' Specification 25,901/04, [Class 2, Acids and salts, Organic &c.], also is referred to.