.jL*~.*Jk^i^r*zjx2*7i - c Digitized by the Internet Archive in 2012 with funding from Federally funded with LSTA funds through the Massachusetts Board of Library Commissioners http://archive.org/details/garmentdyeingcasOOcass o W <4 P3 O o o m P3 -a Q O H O o I— I oP O X o O o m X p o x X Garment Dyeing CASSELLA COLOR COMPANY (AMERICAN BRANCH OF LEOPOLD CASSELLA & C°) 182 AND 184 FRONT STREET NEW YORK BOSTON: 68 essex street PHILADELPHIA: 128 and 128 south front street PROVIDENCE: 64 exchange place ATLANTA: 47 north pryor street MONTREAL, p. a.: 88 and 88 youville square. Contents. Page I. The Dyeing of Wool and Unions ... 5—28 A. Dyeing in strongly acid baths 5 Directions for dyeing in strongly acid baths ... 14 Staining the cotton 15 Directions for topping the cotton 18 Cotton dyeing as a first operation 18 B. Dyeing in weakly acid baths 19 Directions for dyeing in weakly acid baths ... 22 C. Dyeing in neutral baths with Diamine Colours and wool dyestnffs 22 Directions for dyeing in neutral baths 24 D. Dyeing with basic dyestuffs 27 Directions for dyeing basic dyestuffs 28 II. The Dyeing of Silk 29—39 A Dyeing in acid baths 30 Directions for dyeing in acid baths ..... 36 B. Dyeing with Diamine Colours 37 C- Dyeing with basic dyestuffs 38 LLI. The Dyeing of Satin (Silk and Cotton) . . 40—43 Directions for dyeing with Diamine Colours ... 40 Directions for topping silk warp dyed with Diamine Colours 41 IV. The Dyeing of Fabrics composed of Wool and Silk 44-49 A. Djeing in acid baths , . • 44 Directions for dyeing in acid baths 45 B. Dyeing in neutral baths with Diamine Colours . . 40 Directions tor dyeing Diamine Colours in neutral baths 47 Page V. The Dyeing of Cotton 50—60 A. Dyeing with Diamine Colours 50 Directions for dyeing with Diamine Colours ... 57 B. Dyeing with basic dyestuffs 58 Direotions for dyeing with basic dyestuffs .... 59 VI. The Dyeing of Linen and China-Grass . . 61 VII. The Dyeing of Jute and Cocoa-nut Fibre 62 VIII. The Dyeing of Straw and Chip 64 IX. The Dyeing of Feathers 65-67 A. Dyeing with acid dyestuffs 65 Directions for dyeing in aoid baths 67 B. Dyeing with basic dyestuffs . 67 X. The Dyeing of Skins and Rugs 68 XL Appendix 70—71 1. Stripping in alkaline baths 70 2. Stripping with oxydising agents 70 3. Stripping with reducing agents 71 Preface. In the following pages we give some instructions for the employment of our dyestuffs in garment dyeing based upon experience collected in practical working. The goods treated by this branch of the dyeing in- dustry being in the majority of cases more or less tender- ed either by wear and tear or by solar and atmospherical influences, we have carefully selected the dyestuffs most suitable for re-dyeing purposes, and more especially such dyestuffs as possess the property of covering irregularities, dyeing easly level, and besides yielding full shades. The dyeings shown on the following pages have all been produced on material in the grey, to which alone the recipes apply; as however in garment dyeing it is usually the question of re-dyeing goods that are already dyed, our recipes must in such cases be to some extent modified according to the ground shade of the material; this a competent man of some experience can with ease accomplish. NOTE NAPHTYLAMINE BLACK is the scien- ™ F J, C «2 AME OF THE COLOR KNOWN COMMERCIALLY AS ALIZARINE BLACK. ,*!."* LANACYL COLORS ARE KNOWN ??, M ^,1?it LLY AS ALIZARINE LANA- CYL COLORS I. The Dyeing of Wool and Unions. In garment dyeing the following four methods are chiefly employed, each, as the case requires, yielding- most excellent results. a) Dyeing in strongly acid baths. b) Dyeing in weakly acids baths. c) Dyeing in neutral baths. d) Dyeing with basic dyestuffs. A I Dyeing in Strongly Acid Baths. This is the oldest method and is principally applied to ladies' wearing apparel or to upholstery goods which have 1 n previously Btripped with soda ash and are in- tended t<» be dyed to a shade altogether different from the original. For this purpose the following dyestuffs are specially suitable. Pinks. Reds and Clarets. Bright shades of pink are chiefly obtained with Rosazeine B and 13. Fur less bright shades, Lanafuchsine SB, SG, Brilliant Cochineal 2R and 4R are used. Boflazeine B.* 0,l°/o Brilliant Cochineal 4R. The Dyeing of Wool and Unions in Strongly Acid Baths- Bright scarlets may be obtained with various brands of Brilliant Scarlet and Brilliant Croceine, also with Brilliant Cochineal 2R and 4R. 2,5 °/o Brilliant Scarlet 3R. 2,5 °/o Brilliant Croceine 5B. 2,50/o Brilliant Cochineal 2R. 2,5 °/o Brilliant Cochineal 4R. For dark or bluish reds, Lanafuchsine SG, SB, 6B, Naphtol Red C, EB, Azo Rubine A, Azo Red A, Brilliant Orseille C, Azo Orseille BB, Acid Magenta are particularly suitable. y,5°/o Lanafuchsine SB.* :$°/o Azo Orseille H U." 2,6% Aoid Magenta.* 3,5 °/o Brilliant Orseille C pat.* The Dyeing of Wool and Unions in Strongly Acid Baths. 7 The red dyestuffs marked with an asterisk * possess prominent levelling properties and are therefore excellently suitable for mixed and mode shades. For clarets the last mentioned dyestuffs may be used and can be dulled or shaded with Azo Wool Vio- let 7R or 4B, or with the brands of Cyanole mentioned below, or, if required, with Cyanole Green B or 6G and Orange extra also. 3,5 °b Lanafuchsine S B 0.2°/o Orange extra 0,1° o Cyanole Green B. 4 °/o Azo Rubine A 0,2 °/o Cyanole extra pat. 4,4 °/o Lanafuchsine SG 0,6% Azo Wool Violet 4B. 18 4,50/o Azo Red A 0,5/o Cyanole FF pat. 1,5% Cyanole extra pat. The Dyeing of Wool and Unions in Strongly Acid Bath 21 22 2,50/o Cyanole BB pat. 2,5 °/o Gyanole extra pat. 0,3<>/o Azo Wool Violet 7R. 0,1 % Alkaline Blue 6B. 20/o Alkaline Blue R. For medium blues the same dyestuffs are ser- viceable, and the Cyanoles can be shaded at will with Azo Wool Violet 7R. For peacock, navy and dark blue, combina- tions of the following dyestuffs are useful, offering an extensive variety of shades: Cyanole, Thio carmine, Azo Wool Blue B or SE, Cyanole Green, Fast Acid Green, Acid Green, Indigo Blue N and SGN along with Azo Wool Violet 7R or 4B, Lanafuchsine SG,SB and Brilliant Orseille C; for flattening these colours, Orange extra and GG are serviceable. _'..i" I yanole 15 H pat. 1,5% Cj anoie ' Ireen ii< I :»°/o Indigo Blue SG N pat. I 0/0 Azo Wool Violet 4 B. 1,50/0 ln.ii Blue SGN pal . a Lanafu lisine S It. 5% A/.o Wool Blue B pa! The Dyeing of Wool and Unions in Strongly Acid Baths. 4.5°/o Fast Acid Green BN pat. 4,50/o Indigo Blue SGN pat. 0,S°o Azo Wool Violet 7R 0,5 °/o Lanafuohsine SB 0,1 °/o Orange extra. 0,3% Orange extra. All these dyestuffs dye very easily level and are very fast to light and alkalies for most purposes. Yellow and Orange. For bright greenish yellows, Naphtol Yellow and Acid Yellow AT are used. 33 1° o Naphtol Yellow S. 1,5 °/o Acid Yellow AT. For reddish yellows, Fast Yellow S, Indian Yellow G. R, Tropaeoline 00 are serviceable. 2<>/o Fast Yellow S. 2°/o Indian Yellow G. 20/o Indian Yellow R l,50/o Tropaeolin 00. 10 The Dyeing of Wool and Unions in Strongly Acid Baths. For orange, the Orange R, extra, II and GG brands are used /o Orange GG. 2°/o Orange extra, These products dye very easily level and are very fast to alkalies, with the exception of Naphtol Yellow. The fastest to light amongst these dyestuffs are the Acid Yellow AT, Fast Yellow S and Orange GG. Yellow and Orange being but seldom used as self colours, the above mentioned dyestuffs are chiefly applied for shading modes, browns, greens and olives. Green and Dark Green. Very pale green shades are dyed with Acid Green extra cone, extra cone. B and 5G. 41 WMiaii 42 2°/o Acid Groen extra cone. 2% Acid Green 5G. Bluish greens are suitably produced with Fast Acid Green B, BN, Cyanole Green B, 6G and S. 3°/o l'i-t \<'i/o < lyanole Green 6G. The Dyeing of Wool and Unions in Strongly Acid Baths. 11 Dark greens can be dyed with the same dyestuffs if suitably flattened or darkened with Orange extra or GG. or with Lanafuchsine SG and Fast Yellow S. 3,5 °o Fast Acid Green B N pat. 0.5 °o Fast Yellow S 0,3 "o Orange extra. 3.5 ° o Cyanole Green 6 G 0,5% Fast Yellow S 1,5 °o Indigo Blue N pat. Of the above mentioned products, the Cyanole Greens are the best levelling, although the others are but very slightly inferior in this respect; in fastness to light the Cyanole Green brands are quite the best. The fastness to light of all the dyestuffs mentioned above is satisfactory. Grey and Mode Shades. These shades being chiefly pale ones, attention must be paid principally to level dyeing and best fastness to light. Combinations of Cyanole extra or Cyanole Green B with Orange GG or Fast Yellow S and Azo Orseille BB are especially suitable for greys. 0,1 °o Cyanole extia pat .\zo Orseille B B. 0,2 °o Cyanole Green B- i'.i'5°o Orange extra 0,07 °o Azo Orseille BB. For modes, combinations of Cyanole Green B. 6G with Orange extra, GG, Fast Yellow S and Acid Yellow AT and Lanafuchsine SG, SB or Azo Orseille BB are suitable. I Cyanole extra pat. Orange GO Azo Orseille BB. 0,2 °o Cyanole Green B 0,15% Orange extra 0,04 0/o Azo Orseille B B. 12 The Dyeing of Wool and Unions in Strongly Acid Baths- Brown and Olive. As no homogeneous dyestuffs yield any of these shades direct, it is always advisable to produce the desired shades by a combination of suitable dyestuffs, for which purpose we recommend the follow- ing products: Orange extra, Fast Yellow S, Indian Yellow, Lanafuchsine and Cyanole, Cyanole Green or Fast Acid Green BN; by varying the proportions almost any shade may be produced. 52 n ,8 0/o Cyanole Green B 2 °/o Orange extra 1,8 °/o Lanafuchsine S G. 1,4% Cyanole Green 6G 2 °/o Orange extra 0,7 o/o Lanafuchsine S G. 3,5 o/o Fast Acid Green B N pat. 0,75 °/o Orange extra 1 °/o Indian Yellow G. 0,8 o/o Cyanoh 1,2 °/o Orange extra 2,5o/o Fast Yellow S. 55 4 0/0 Cyanole Green 6G 1,5% Orange extra 1 o/o p^ st Yellow S. 1,1 °/o Cyanole Green B 2 °/o Orange extra 1 °/o Lanafuchsine S G. Purple and Prune. Suitable dyestuffs for these shades are: Azo Wool Violet 7R and 4B, Formyl Violet S4B, S5B, 6B— 10B, the two first named being noted for dyeing very level; in fastness to alkalies the Formyl Violets are however superior. For shading towards blue, Cyanole may be The Dyeing of Wool and Unions in Strongly Acid Baths. 13 used; prune is obtained by shading with Lanafuchsine, Cyanole or Cyanole Green. 2 0/o Azo Wool Violet 7 E. 59 2«/o Azo Wool Violet 4B. 2 % Formyl Violet S 4 B pat- 2°/o Formly Violet 10 B pat. 1,5 o/o Azo Wool Violet 7 R. 0,75 °/o Cyanole extra pat. 1,5 °/o Lanafuchsine S G. (S3 2,5 o/o Azo Wool Violet 4 B 0,4% Cyanole Green B 0,1 % Lanafuchsine S G. Black. For dyeing black in strongly acid baths which effect the stripping of the ground colour and con- sequently cause an even distribution of the black dye over each single garment, the Naphtol Blacks B, 2 B, 3B, 6B, SG, and the Naphtylamine Blacks S, T, TJ, are of primary importance; Naphtol Blue Black is used as a greenish-blue black. 65 7o/o Naphtol Black 3 B. 6 0/o Naphtol Blak S G. 14 The Dyeing of Wool and Unions in Strongly Acid Baths. 67 6% Napktylaniine Black S pat. 6°/o Naphtylamine Black T J pat. 5% Naphtol Blue Black pat. Very bright blacks are obtained with our new Azo Merino Blacks BE and 6 BE. 70 6°/o Azo Merino Black BE pat. 6°/o Azo Merino Black G BE pat These brands dye very level and have a good covering power. Naphtol Black B, 2B, 3B, 6B and Azo Merino Black yield bluish, the rest denser shades. According to the shade to be obtained, other dyes, such as Indian Yellow, Orange, Acid Green, Cyanole Green may be used in the same bath for producing any special shade of black. The Naphtylamine Blacks require somewhat less acid than the Naphtol Blacks and Naphtol Blue Black. Directions for Dyeing in a Strongly Acid Bath. The dyestuffs already referred to are one and all dyed with the addition. of 10 to 20°/f> Glauber's salt and 4 to 5°/0 sulphuric acid or 10 to 15°/o bisulphate of soda. A still Larger quantity of acid is not only superfluous, but may even frequently do harm by causing the dye- stuff to dye too rapidly. This is a point to be considered when dyeing heavy goods which are not easily pene- trated; it is (hen sometimes advisable and advantageous to use acetic acid in place of sulphuric acid, and to add Staining the Cotton. 15 a little of the latter for clearing the bath completely, but not before it appears nearly exhausted; an increase of the quantity of Glauber's salt may in such case be also of advantage. As a rule the goods are entered at or near 140 to 160°F., the dye-bath is slowly heated to the boil and boiled for one hour, after which the goods are rinsed in cold water. The dye-baths exhaust almost completely, and it is therefore unnecessary to keep them. Alkaline Blue is dyed near 175 to 195° F. with the addition of either lo/o soda crystals or 4 to 5 o/ borax; after dyeing, the goods are rinsed, and raised in a hot bath containing some sulphuric acid. Staining the Cotton. As already explained, the wool only is dyed by working according to the above methods ; cotton threads or linings are left undyed and generally become lighter in shade than they were originally. Silk stitches or trimmings are frequently stained, but as a rule they re- main paler than the wool; reference to the simultaneous dyeing of wool and silk in one bath will be found further on. For dyeing the cotton, the cumbrous sumac and iron liquor process was formerly employed to a considerable extent, as in many cases it was sufficient to make the cotton appear dark and covered, but whenever the cotton and wool had to be of uniform shade, topping with basic dyestuffs had to be resorted to. This process is a rather troublesome one and there- fore not much liked, especially so because, during the subsequent topping of the cotton, the wool absorbs a large quantity of dyestuffs and is consequently liable to smut. With the introduction of our Diamine Colours an excellent opportunity presented itself to shorten this roundabout process and yet obtain much better results. The wool is dyed first in an acid bath as described above, goods are then rinsed well and cotton-dyed in a cold or lukewarm bath. If carried out in an adequate manner, the process gives very good results and clean goods; 16 Staining the Cotton. it is however advisable to keep the wool on the light side of the shade to be matched and to bring it to the proper shade whilst dyeing the cotton, this result being secured by slightly warming the dye-bath containing Diamine Colours. The following Diamine Colours are specially suitable for cotton dyeing by reason of their not tinting the wool or only slightly so: Diamine Fast Yellow A Diamine Brown M pat. Diamine Orange G, D Diamine Nitrazol Brown B Diamine Black BH,RMW pat. pat. Diamine Sky Blue pat. Diamine Catechine B pat. Diamine Rose BD pat. Diamineral Blue R pat. The following tint the wool slightly more, but still are useful. Diamine Red 4B, 10 B pat. Cotton Red A Diamine Brown S pat. Diamine Blue 2B, 3B, BX, NC pat. Diamine Green B, G pat. Diamine Black HW pat. Diamine Brilliant Blue G pat. Diamine Heliotrope 0, B, G pat. Oxy Diamine Violet B pat. Diamine Bordeaux B pat. Diamine Past Yellow B, FP pat. Diamine Catechine 3G pat. Wool dyed first with: 0,12°/o Cyanole Green B 0,02 o/o Orange GG (l,05 0/o Azo Orsoille 11B. Cotton topped per 10 gallons dye-T>guor with 0,08 oz Diamine Black RMW pat. 0,029 „ Diamine Sky Blue pat. 72 ".1 0/0 1 lyanole Green B 1 % Tropaeoline 00 0,8** Lanafaohaine 8 /o Lanacyl Blue 2B pat. 2,5 °/o Lanaoyl Blue R pat. 84 2,5 °/o Lanaoyl Violet B pat. 2,5% Lanacyl Navy Blue B pat. 85 20/6 Formyl Blue B pat. For Dark Green and Olive. For dark green, combinations of Diamine Green B or G with Brilliant Milling Green B, or Naphtol Blue Black and a little Indian Yellow G are useful. Olive can be obtained by adding a little more of either Indian Yellow and Orange extra, or Oxy Diamine Brown G, according to requirement. 87 Il°/o Diamine Green B pal. 3°/o Diamine Green G pat. The Dyeing of Wool and Unions in Weakly Acid Baths. 21 2% Brilliant Milling Green B. 89 2,5% Diamine Green B pat. l,5<• used at the same time, some borax or soda ash should ho added to the dye-bath and the goods raised with acids after dyeing; boiling must !•<• avoided. with Diamine Colours and Wool Colours. 25 To illustrate standard shades of our whole range of Diamine Colours would too far exceed the compass of this hook; we would therefore refer all interested parties to our special pattern card No 2140 and here confine ourselves to a few shades frequently asked for on union 0,05% Diamine Rose GD pat. 0,050/o Rosazeine 13. 0,1 o/ Diamine Sky Blue FF pat. 0,02°/o Alkaline Blue 6B. i, ion Blue FN pat. 0.2 °o Diamine Dark Blue B pat. Diamine Catechine B pat. Formjl Blue B pat. 2 °/o Oxy Diamine Yellow GG 0,5°/o Brilliant Milling Green B topped with Solid Green erj Bi extra. 2 °/o Diamine Scarlet B pat. 0,5 o/o Diamine Red -iB. 102 2 % Diamine Catechine G pat. 0,2 °/o Lanacyl Blue R pat. 0,4 °/o Diamine Violet N pat. 0,6 °/o Oxy Diamine Blue G 0,35 °/o Formyl Violet S4B pat. topped with 0,3 o/o Methyl Violet B No 1. 106 4 °/o Union Brown TD pat. 2* 26 Dyeing of Wool and Unions in Neutral Baths 2,5 °/o Diamineral Blue R pat 0,5 % Naphtol Blue Black pat. 0,750/o Formyl Violet S4B pat. 3,2% Diamine Green B pat. 1,8 0/0 Diamine Black BH pat. 0,5 0/0 Diamine Fast Yellow B 1 °/o Brilliant Milling Green B 0,4% Naphtol Blue Black pat. 113* 4,5% O.vy Diamine Black J W pat, 0,5% Formyl Violet S4B pal 1 5% Diamine Green B pat. 1 % Naphtylamine Black X2B pat. 2,5 tyo Diamine Bordeaux B pat. 1 0/0 Diamine Red 10 B pat. 0,5 % Diamine Brown M pat. 0,150/o Formyl Violet S4B pat. 110 2,5 % Diamine Brown M pat 1 % Diamine Brown R 0,7 0/0 Oxy Diamine Black JE I pat. 1 % Diamine Fast Yellow B 0,15 0/o Naphtol Blue Black pat. 3 % Diamine Fast Yellow B 1 % Diamine Brown 3G pat. 2 0/0 Diamine Black HW pat. 1 0/0 Indian Yellow G 0,250/o Naphtol Blue Black pat. 112 3 0/0 Diamine Bordeaux BR pat. 0,150/o Formyl Violet S4B pat. 0,5 % Diamine Gatechine G pat 5,5% Union Black S pat. 0,5% Diumine Green B pat. * By adding some Diumine Green in dyeing blaoks, very full shades oan be produced and multi-coloured goods are well eovered mid turned out uniform in shade. The choice of the black Diamine Colour is quite immaterial; if the wool remains too light, the bath should be boiled up again, or a further addition of Naphtylamine Black should be made. H". -it all practicable, all neutral-dyed goods should be cooled well in the open air before rinsing them in cold water, [f taken straight from the hoi dye-bath into cold -with Diamine Colours ami Wool Colours. 27 water, it may happen that the rinsing water will become too warm and cause the cotton to be stripped. In any case it is advisable to add some acetic acid to the last rinsing water in order to give the goods a firm handle; some acetic acid may also be added to the finish- If in certain cases the goods dyed with Diamine Colours only should not be found bright enough, they may be topped in a fresh bath, either hot or cold, with basic dyestuffs with the addition of some acetic acid. It should be pointed out that in such case the wool ought not to be dyed too heavy or too bright a shade in the Diamine Colour bath, as it always takes up some more dye during the topping process, depending on the tempera- ture at which this is carried out. D) Dyeing with Basic Dyestuffs. In consequence of their inadequate fastness to light, the basic dyestuffs are only used on wool for dyeing very bright shades of crimson, violet, green and yellow. Although they are chiefly dyed in neutral baths, they behave quite differently to the above named Diamine Colours, and the two classes should on no account be dyed together in one bath. As pointed out before, they are frequently also applied on unions for brightening dyeings produced with Diamine Colours, in which case they are dyed in a fresh bath with addition of some acetic acid. Dyestuffs chiefly used for wool are the following: For Pink, Crimson and Dark Red. Magenta, Cerise, Russian Red, Geranium, Aniline Brown. For Yellow, Orange and Brown. Thioflavine T pat., Chrysoidine, Bismarck Brown. 28 The Dyeing of Wool and Unions -with Basic Dyestuffs. For Green. Brilliant Green and Solid Green, shaded if required with Thioflavine T pat. For Violet. All the brands of Methyl Violet from R to 6B. 1% Thioflavine T pat l°/o Brilliant Green cryst. Directions for Dyeing Basic Dyestuffs. Magenta, Cerise, Russian Red, Geranium, Aniline Brown are dyed with 10o/ Glauber's salt; the goods are entered warm, the liquor is brought to the boil and finally allowed to cool down as far as possible. Chrysoi'dine and Bismarck Brown are dyed similarly, but with the addition of lOo/o Glauber's salt and 50/ alum. Thioflavine T is best dyed with 10% Glauber's salt and 50/0 acetic acid or 10 0/0 bisulphite of soda. Brilliant Green and Solid Green are dyed either with 10/„ Solid Bine R »°/o Solid Blue SB. The Dyeing of Silk in Acid Baths. 33 3°'o Formyl Blue B pat. 2<>/o Naphtol Blue Black pat. 6% Indigo Blue SGN pat. 30/o Solid Blue E. For flattening very deep shades ofblue, Indian Yellow, Orange, or one of the afore mentioned reds can be used. Yellow and Orange. Very pure yellows may be obtained with Naphtol Yellow S or Acid Yellow AT, richer but redder shades with Indian Yellow G, R, Tropaeoline G and 00. For pure orange shades the Orange extra, R and GG brands and also Croceine Orange EN are employed. 138 ■i-1 Yellow AT. 3°/o Indian Yellow G. 141 3> Tropaeoline 00. 4°/o Orange extra. The yellow and orange dyestuffs are also extensively used for shading modes, olives, greens and browns. Green, Dark Green and Olive. Very bright greens can be produced with Acid lc. B and 5G, shaded with yellow if required. 34 The Dyeing of Silk in Acid Baths. 142 5% Acid Green extra cone. l°/o Acid Green extra cone. 2°/o Acid Yellow AT. For dark greens, useful dyestuffs besides the Acid Greens are: Fast Acid Green B, BN, Cyanole Green B, 6G, S, shaded with Solid Blue R or Naphtol Blue Black and Indian Yellow G or Acid Yellow AT. 144 145 50/o Fast Acid Green BN pat. 5°/o Cyanole Green 6G. 146 147 !°/o Acid Green extra cone. 3% Solid Blue R l°/o Indian Yellow G. 40/o Acid Green extra cone. 2«/o Tropaeoline 00 4°/o Orange extra. 2,5 °/o Cyanole Green B 1 °/o Indian Yellow G 2 o/o Acid Brown 1). Olive shades are produced in a similar way and shaded with Orange extra or some red dyestufl's. . Mode and Brown. For greys, the various brands of Induline, Nigro- sine and Aniline Grey are applicable, which may be The Dyeing of Silk in Acid Baths. 35 shaded as desired with Orange, Indian Yellow or Lanafuehsine. 150 0,5 % Aniline Grey R. 0,25 % Nigrosine. For mode shades, Cyanole or Cyanole Green, combined with the above named yellow and red dyes, may be used in place of Induline or Nigrosine. 0,3 % Cyanole Green B 0,15% Orange extra 0.1 °o Lanafuehsine S G. 0,4 °/o Cyanole Green B 0,2 % Orange extra 0,15°/o Lanafuehsine S G. h,12°o Cyanole extra pat. o,6°o Orange GG ii.^o Lanafuehsine S G. 0,H °/o Cyanole extra pat. 0,3 °/o Orange extra 0,2% Lanafuehsine S G. 154 Pale shades of brown can be obtained in the same manner as mode shades, or with addition of Acid Brown D; for deeper shades the Cyanole can be re- placed by Solid Blue R or Naphtol Blue Black. Void Brown D. 4 % Acid Brown D 2 % Roccelline (1,4% Cyanole extra pat. 156 36 The Dyeing of Silk in Acid Baths. 5 °/o Acid Brown D l,2<>/o Eoccelline 1 °/o Cyanole extra pat. 5°/o Acid Brown D 20/o Solid Blue R. Purple and Prune. For pale and bright violet shades, either the Formyl Violet brands or else Alkali Violet C are used; dark shades and also prunes are dyed with the same colours and saddened with Solid Blue R or Cyanole, Cyanole Green and Azo Red, Roccelline or Lanafuchsine. 30/0 Formyl Violet S4B pat. 2,50/o Formyl Violet S4B pat. 2 o/ Roccelline. Black. For bracks, the Naphtylamine Blacks 4B and 6B are specially well suited, besides which, Naphtylamine Black D, R, 4B, 6B, or Naphtyl Blue Black N shaded with Acid Green may also be used; the saddening is done with Indian Yellow or Orange. 1(12 10°/o Naphtylamine Black 4B pat. 10°/o Nuphtylamino Black R pat. 1 0/0 Indian Yellow G. Directions for Dyeing in Acid 'Baths. The afore named acid dyestuffs are all dyed at a temperature of 100 to 17.V 1 p. in a bath slightly acidulated with sulphuric ;i keep tin- cotton a little darker than the silk, as the latter deepens in shade in the subsequeni lopping hath. An increase of Glauber's salt above the staled quantity has also the effecl Of dyeing the cotton deeper. The Dyeing of Satin. 4L Directions for Topping Silk Warp dyed with Diamine Colours. For topping goods dyed as above, both acid and basic dyestuffs are used. The former are used for shading the silk only, the latter dye both silk and wool; the dyes of both groups are applied in a bath acidulated with 10 to 15% acetic acid and can be used simultaneously in one and the same bath according to requirements. The topping is done either cold or lukewarm; by raising the temperature the silk is tinted to a greater extent. The acetic acid slightly dulls the shade of some Diamine Colours such as Diamine Red 4B, 5B, 10 B y Diamine Bordeaux B, Diamine Brown R, V, which however disappears on subsequent thorough rinsing. Below we give some patterns of the ordinary standard shades on silk warps and refer for details of dyeing silk warps to our pamphlet, "The Diamine Colours on Half- Silk". /o Alkaline Blue 3B topped with New Methylene Blue N pat. Indigo Blue N pat. ^►."•^.■*^*^^^^^.' l * t 180 2 °/o Diamine Orange G 0,1 °/o Diamine Brown B pat. topped with New Pkosphine G pat. 0,25% Diamine Grey G pat. 0,05% Diamine Brown M pat. topped with Aniline Grey B. 182 3 °/o Diamine Scarlet B pat. 0,5% Diamine Orange D. 0,()°/o Diamine Violet N pat. 2,5 °/o Diamine Brown M pat. 0,3% Diamine Brilliant Blue G pat. 1,5% Diamine Fast Yellow B pat. topped with 1,2 °/o Oxy Diamine Black JE pat. Methyl Violet B No 1. topped with Bismarck Brown FF Sai'raninc S No 150. 3,50/0 Diamine Bordeaux B pat. 11..," ,, I in, mmr ( >rango l> i'.,"<, Diamine Brown M pat. topped with Magenta la. Large oryst. L86 3 0/0 Diamine (Jreen B pat. l,(i% Oxy Diamine Black SO00 pat. 0,50/0 Diamine Fast Yellow A topped with Brilliant Green cryst. extra Cyanole oxtra pat. The Dyeing of Satin. 3 °/o Diamine Steel Blue L pat. 2 o/ Diamine Black BH pat. 0,lo/o Alkaline Blue 3B topped with Indigo Blue N pat. Methyl Indone B pat. 1S9 1SS 2 % Diamine Orange D 1,5 °/o Diamine Brown 3G pat. topped with Bismarck Brown FF Safranine S 150. On iron mordant: 7 Oo Union Blnck S pat 4 °o Oxy Diamine Black S 000 pat. 1 °o Diamine Green B pat. 0,5% Diamine Fast Yellow A 0,5°/o Diamine Fast Yellow B pat. 6 °/o Extract of logwood. topped with 3 °o Naphtylamine Black -IB pat. *If for certain reasons the application of iron-logwood- black be desired on satin goods, the following recipe may be recommended as yielding good results: The goods are mordanted with nitrate of iron of 32° Tw. 5 well rinsed, bottomed in a hot bath with 3 o/ fustic extract, and dyed at about 175° F. in a fresh bath with 4—5",, X y Diamine Black S 000 pat. V-'% Diamine Fast Yellow A 4— 8o/ logwood extract with addition of V 2 lb soap and t lb Glauber's salt per 10 gallons liquor. I\ . The Dyeing of Fabrics composed of Wool and Silk. The silk: interwoven in these fabrics neeessu special care in the dyeing so that it is not injured by ressure or friction. The dyeing may he done in either acid or neutral baths, the selection depending upon the ground colour and the condition of the fabric to be dyed. The cleaning of thr _ Is is best done in a moderately hot soap liquor. A i Dyeing in Acid Bath?. Wool having altogether a greater affinity for acid aan silk, a narro - uon must be made amongst the wool dy staffs given on pages 5 — 14. only _ -eful which show a tendency to dye both - as uniform a- ssible and at the same time - - with regard to dyeing level. The following dyestuffs ommend from experience as dyeing both wool and silk to the same shade or nearly so, and also e ied: . Brilliant Orseille C M _ Krv sine B, 1 AZ. . - Blue R, < I The Dyeing of Fabrics composed of Wool and Silk in Acid Baths. 45 For Yellow and Orange : Indian Yellow G. R. Orange extra. Tropaeoline 00. For Green: Cyanole Green B. 6G. Acid Green extra cone, Fast Acid Green BX. For Violet: Acid Violet 6BC, Forniyi Violet S4B. 6B pat For Black: Naphtylamine Black 4B, 6B pat.. Gloria Black B. By combinations of suitable dyestuffs any shade can be produced without the least difficulty. Direct - in A::i E = :"~8. According t«» the depth of shade to be dyed, the - ah is charged with 5 — 15 Oo bisulphate of soda. 5 — 1 5 ° o Glauber's salt and the dyestuff required: the goods art- entered at 140" F.. the bath brought slowly to the boil, which should not however be continued beyond ;r: after this time the bath is allowed to cool down to 120" P., the _ s then treated for another 1 ! 2 hour - . lifted, rinsed, and dried. Prolonged boiling would r th«* wool too heavy in shade: in a hot or slowly cooling bath the silk becomes better covered. Very excellent results may also be obtained by adding only one half of the required quantity of colouring matter at the beginning, entering the goods and boiling it: after having lifted the fabrics, the second half of th»- dye is added, and the bath cooled off to some - are then re-entered and worked for anoth- • hour without any further heating. method - specially good results with dark shades and bli 46 The Dyeing of Fabrics composed of Wool and Silk Erythrosine, Rosazeine 13. Naphtylamine Black 4B and 6B and Gloria Black B, are dyed with 5 — 10o/o acetic acid and 10o/o Glauber's salt, instead of with bisulphate of soda and Glauber's salt. An additional help to give the silk sufficient body (also in the case of prolonged boiling) is the use of basic dyestuffs in an acid bath: even small quantities are effective in helping to cover the silk satisfactorily. Particularly suitable are the following basic dyestuffs : Magenta Solid Green Tannin Heliotrope Thioflavine T pat. Safranine Tannin Orange R pat. Xew Methylene Blue pat, Bismarck Brown. Indazine M pat. These dyestuffs should only be applied in small quantities and best towards the finish, otherwise the goods are apt to rub off; they may however also be used for topping the silk in a fresh lukewarm bath acidulated with acetic acid, provided the wool has not already been dyed too deep, as it will still take up part of the dyestuff. B) Dyeing in Neutral Baths with Diamine Colours. This method is chiefly intended for closely woven fabrics which are hard to penetrate, for which those Diamine Colours are principally used which dye both wool and silk as uniform as possible. These dyestuffs are: Diamine Rose BD, GD pat, Diamine Past Yellow B pat. Diamine Scarlet B, 3B pat. Diamine Gold pat. Diamine Bordeaux S pat. Diamine Yellow CP in Neutral Baths with Diamine Colours. 47 Thiollavine S pat. Diamine Green G. B pat. Diamine Brown M,B, 3 G pat. Diamine Dark Blue B pat. Oxy Diamine Brown G Diamine Steel Blue L pat. Diamineral Brown G pat. Diamine Black HW pat. Diamine Blue 3R, RW pat. Union Black S pat. Diamine Brilliant Blue G pat. Diaminogene extra pat. Diamine Sky Blue FP pat. Directions for Dyeing Diamine Colours in Neutral Baths. The bath is charged with 1 to 2 lbs Glauber's salt per 10 gallons, and. after the goods have been entered at 140° P., brought to the boil, and kept gently boiling for i hour. If the boiling be too severe it causes the wool to get too dark, whilst silk dyes easier in a cooling bath; if the wool does not dye sufficiently well, some acetic acid (1—20/6) must be added. This addition is also to be recomended for dyeing Diamine Sky Blue, Diamine Brilliant Blue and Diamine Blue 3R; Union Black S is best dyed with an addition of 1 — 2 o/o borax (apart from the prescribed quantity of Glauber's salt). It will only in very rare instances be necessary to top the silk: in the case of black this is best achieved with Xaphtylamine Black 4B in a fresh lukewarm bath acidulated with acetic acid. uetimes (chiefly in the case of pale shades), - composed of wool and silk may also be dyed in alkaline baths, the additions being soap and phosphate of soda or borax, say 3 — 4 oz each per 10 gallons of dye-liquor. The following dyestuffs are adapted for this purpose: Alkaline Blu.- Indian Yellow G, R Alkaline Violet C pat. Rosazei'ne 13 Formyl Violet S4B pat. Alter dyeing, the goods are rinsed and raised in an acid bath. £B Eie _ -eir^ :■: :;:::; : — r:se£ :: ::. and 5 Ik Below ~t ^: t s --' eral patterns on goods eom- - I A wool and silk, and dyed according to directions given abc~ Farther details on the dyeing of fabrics composed of wool and silk will be found in onr pamphlet- 19JK which is at the disposal of customer 5. ' ' ■ ? ysAzeme II El " ITOS tt£ 1 -~ ' I './.- Bxfa : : : v- .:-- - lr : . 1 - - 7 ■- - - - a - : ._ .' • -: - > : '. . pat 4 9 « Br 3 D pat But 5: Indian Yellow B dm .smarck Brown GG I pat. : 1 •/» Brilliant Croeeme M< ra pat ^ B 0,1 •» Bismarck Bnrvn GG : 0,3 ^i Cyanole extra pa*. 0.6 •• Tannin Heliotrope. : -=- 3 °« Fast Acid Green BX pat. pat. - 1 °o Diamine Bnnm M pat. - B - - - - ^ B. V. The Dyeing of Cotton. For the dyeing of cotton the Diamine Colours are of first importance, as nearly any shade can be produced therewith; for some purposes, where brightness is essen- tial, the shades produced with Diamine Colours must be topped with basic dyestuffs, which however in this case dye without any previous mordanting. Only in such cases should basic dyestuifs with a tannin-antimony mordant be resorted to where a specially brilliant shade is to be dyed and cannot be obtained with Diamine Colours alone or even with a basic topping. Preparation for Dyeing. The best way of freeing cotton from impurities is boiling in a weak alkaline bath; very stiffly starched goods must be treated in a lukewarm infusion of malt; strongly faded goods must be bleached or stripped with bleaching powder, and soured off. A) Dyeing with Diamine Colours. Any of the Diamine Colours can be used for dyeing cotton goodB, but only the best suited are enumerated below. Pink, Red. Claret. Pot pink, Diamine Rose BD, BG, GD; for red, Diamine Scarlel B, 3B, Diamine Red 4B, 5B, 6B, JOB, The Dyeing of Cotton with Diamine Colours. 51 Diamine Purpurine B, 3B. 6B, Diamine Brilliant Scarlet S, Diamine Fast Red F; for claret, Diamine Bordeaux B, S, or the red brands of Diamine Colours darkened with Oxy Diamine Violet or Diamine Black BH. In order to increase their brightness, red and claret shades can be topped with basic dyestuffs; for this purpose, the various brands of Safranine and Magenta are chiefly suitable. 0,15 °/o Diamine Kose BD pat. 20S 0,07 °/o Diamine Rose GD pat. 0,06% Diamine Orange G. 210 2,o °o Diamine Brilliant Scarlet S. 2,5 °/o Diamiue Red 4B. 212 3°/o Diamine Red 10B pat. 3°/o Diamiue Fast Red F pat. 214 diamine Bordeaux B pat. 3,5 °/o Diamine Bordeaux B pat. topped with 1 o/ Oxy Diamine Violet B pat. Safranine S No 150. Pale Blue, Blue. Navy. For pale blue, Diamine Sky Blue and Diamine Sky Blue PP; for richer blues, Diamine Blue 3B, 2B, BX, 3R, BG, RW, Diamine Brilliant Blue G, Oxy Diamine Blue B, G, 3G, 5G, Diamine Fast Blue C, CG, PPB •■ used. 52 The Dyeing of Cotton with Diamine Colours. Dark, greenish blues are obtainable with Diamine Steel Blue L; navies are advantageously produced by darkening the last named blues with Dia- mine Black BH, Diamine Dark Blue B or Oxy Diamine Black, or direct with Diamineral Blue R or Diamine Deep Blue R; specially bright shades can be dyed by topping with New Methylene Blue. Blues very fast to washing (replacing Indigo) are obtained with Diaminogene Blue 2B or NA shaded according to desire with Diamine Azo Blue 2R or Diamine Black BH, and diazotised and developed with Beta Naphtol. 0,15 o/o Diamine Sky Bine F F pat. 2 o/o Diamine Sky Blue FF pat. topped with 0,4<>/o New Methylene Blue N pat. 21S 80/n Diamine Steel Blue L pat. 8°/o Diamineral Blue R pat. L>24 :i % Diamineral Blue R pat, 4 °/o Diamine Deep Kino R pat. topped with \i. fchj Lene Bine N pat. The Dyeing of Cotton with Diamine Colours. 53 226 3,5% Diamiueral Blue R pat. 3 °/o Diaminogene Blue 2B pat. 0,6 °/o Diamine Black BH pat. diazotised and developod with Beta Naphtol. Yellow. Cre am and Orange. For greenish yellows, Thiollavine S and Oxy Diamine Yellow GG are useful; for deeper shades, Diamine Fast Yellow A, B, FF, Diamine Orange G, D, F, Oxy Diamine Orange G, R, for cream, accord- ing to the shade desired, Diamine Fast Yellow B, FF, Diamine Yellow CP and Diamine Orange G or D are chiefly applied, and are much in demand for curtains. Thioflavine S pat. 2% Diamine Yellow CP. 230 2°/o Diamine Fast Yellow A. 2% Diamine Fast Yellow B pat. I'iamine Orange G. °/o Diamine Orange F. Gi-f-en, Dark Green and Olive. Pales shades of green are obtained with Diamine Sky Blue FF shaded with Thioflavine S or Diamine Fast Yellow FF; in order to increase their brightness, they may be topped with either Brilliant en or Solid Green; for dark shades of green, Diamine Green B, G, Diamine Dark Green N are useful. .34 The Dyeing of Cotton -with Diamine Colours- Olive shades can be obtained with Diamine Green, Diamine Dark Blue B, or Diamine Black HW shaded with Diamine Brown 3G, Diamine Catechine G or Dia- mine Fast Yellow B. 233 234 2,5 °/o Thioflavine S pat. 3 °/o Thioflavine S pat. 0,25 % Diamine Sky Blue F F pat. 0,1 % Diamine Sky Blue F F pat. topped with 0,35 °/o Brilliant Green cryst. extra 235 3°/o Diamine Green B pat. 236 2 % Diamine Green G pat. 2 % Diamine Fast Yellow B pat. 0,75 °/o Diamine Brown 3 G pat. l,5 0/o Diamine Black HW pat. 2,5% Diamine Fast Yellow B pat. 1,5 °/o Diamine Catechine G pat. Greys and Mode Shades. These are best obtained by combining Diamine Dark Blue B, Diaminogene extra or Diamine Fast Blue C with Diamine Catechine B or Diamine Brown 3G, also Diamine Fast Yellow B and Diamine Drange D. 288 (i,1 % Diaminogene extra i>"i 0,15% Diamine Cateohine B pat. 23!) 0,1 "0 Diamine Fast Blue C pat 0,076% Diamine Catechine B pat. 0,04 ",'0 Diamine Past yellow It pat. The Dyeing of Cotton with Diamine Colours. 55 0,4 °o Diamine Dark Blue B pat. 0,4 °o Diamine Catechiae B pat. 0,15 °o Diamine Fast Yellow B pat. 0,6 % Diamine Fast Yellow B pat. 0,3 °/o Diamine Catechine B pat. 242 >A3 0,6 °o Diamine Fast Yellow B pat. 0,4 °/o Diamine Fast Yellow B pat. 1,25 °b Diamine Orange G 0,5 °/o Diamine Catechine B pat. ".1 °o Diamine Fast Blue C pat. 0,05 °o Diamine Dark Blue B pat. Brown. The principal dyestuifs for brown are: Diamine Catechine B, G, 3G, Oxy Diamine Brown G, Diamine Brown R, B, M, '6G, Cotton Brown A, N, Cotton Dark Brown BB, BM. The browns may be darkened with Diamine Black H\V, BH, or the various brands of Oxy Diamine Black. Very good browns fast to washing, and specially serviceable as substitutes for Cutch can be produced with Diamineral Brown G, darkened if necessary with Diamine Brown B or Diamineral Blue R and aftertreated witli bichromate of potash and bluestone. 245 2°/o Oxy Diamine Brown G. 3 °/o Diamineral Brown G pat. aftertreated with 1,5% bichromate of potash 1,5 °/o bluestone 3 °/o acetic acid. - r ''i Diamine Catechine G pat. 247 3 °/o Diamine Brown M pat. 56 The Dyeing of Cotton with Diamine Colours. 248 249 3°/o Diamine Brown B pat. 3 o/o Cotton Dark Brown B B pat. Violet and Prune. For violet, Diamine Violet, Diamine Heliotrope B, G, are used, which are topped with Methyl Violet for very bright shades; for prune, Oxy Diamine Violet B, G, darkened if required with Diamine Black BH or Oxy Diamine Black. Very bright shades are obtained by topping with Methyl Violet. 251 1 " o Diamine Violet N pat. 2°/o Diamine Heliotrope G pat. 252 253 0,75% Diamine Violet N pat. topped with 0,4 o/o Methyl Violet BB 72 No I. 3°/o Oxy Diamine Violet B pat. |{lark. For producing a cheap one-bath black, the various Oxy Diamine Blacks will be found useful; specially to be recommended arc: < )\y Diamine Black BG, BM, D, AT, JEI, JW. A better black with good fastness to washing and specially suitable for huso can be produced with Diaminogene B, Oxy Diaminogene OB or Diamine Blaci I! II diazotised and developed with Phenylene I liamine. The Dyeing of Cotton -with Diamine Colours. 57 255 5°/o Oxy Diamine Black BG pat. 5°/o Oxy Diamine Black D pat. 256 5 °/o Oxy Diaminogene OB pat. developed with V2°/o Phenylene Diamine Va°/o Beta'Naphtol. 5°/o Diaminogene B pat. developed with Phenylene Diamine. Directions for Dyeing with Diamine Colours. Pale shades are best dyed with addition of lo/ soda ash and 5°o soap, medium shades with about 10o/o and dark shades with 20 to 30 o.' Glauber's salt; the dyeing is done at the boil for about one hour, when the bath is allowed to cool off. For dark shades, the bath should be small in volume, and be retained for dyeing future lots. After dyeing, the fabrics are rinsed cold without any other treatment; blacks should be given a warm soap passage with a little oil, or be slightly starched. Diazotising and developing, or aftertreatment with bichromate of potash and bluestone are processes applic- able to some dyestull's for producing shades of very good fastness to washing such as are required for linen goods and also hosier}-. For both processes the garments are first dyed as afore stated, and rinsed. Diaminogene Black for example ■\ a- follows: The diazotising is done in a cold bath by treating Dods lor- ]<) to 15 minutes in a solution of 30/ sodium nitrite and 9<>/o hydrochloric acid; for this treatment a wooden vessel i- best, suited, care being taken not to ids to direct sunlight. Having been quickly 4* 58 The Dyeing of Cotton with Diamine Colours. rinsed in cold water, the garments are developed in a fresh, cold bath for 10 to 15 minutes with 0,6o/oPhenylene Diamine and 2o/q soda ash, and finally soaped hot if found necessary. Blue produced with Diaminogene Blue is treated in a similar way, but the developing is done with 1 o/ Beta Naphtol (dissolved in its own weight of caustic soda lye of 77° Tw) instead of Phenylene Diamine. The aftertreatment with bichromate of potash and bluestone is done in a hot bath with 1,5 to 2 o/o bichrom- ate of potash, 1,5 to 2 o/o bluestone and 3 o/o acetic acid. The topping with basic dyestuffs is always done in a fresh bath with an addition of 5 to 10 o/o acetic acid; it is well to begin cold and to heat the bath gradually to 120— 140° P. The basic dyestuffs dye without a mordant on a bottom of Diamine Colours and become fixed fairly fast, provided they are not employed in excessive quan- tities, i. e. not more than 1 /3 — V 4 °f the absorbed quantity of Diamine Colours; they should only be used for bright- ening the shades. Should the above directions in certain instances not prove sufficient, all further details will be found in our pattern cards Nos 1974 and 2064. B) Dyeing with Basic Dyestuffs. These are chiefly useful for producing bright shade's; we recommend the following in the first place: Irisamine G pat. Brilliant Green Magenta Solid Green Cerise Thioflavine T pat Safranine Tannin Orange R pat. Tannin Heliotrope ChrysoYdine New Methylene Blue pal. Bismarck Brown [ndazine pat, Tannin Brown. Methj I Violel The Dyeing; of Cotton with Basic Dyestuffs. 59 Directions for Dyeing with Basic Dyestuffs. For very bright shades, the well cleaned goods must be mordanted in a warm bath for several hours with '2 to 5 %. tannin, according to the depth of the shade, followed by a treatment for 7- hour in a cold bath of 1 to 3o b antimony salt; after rinsing, the goods are ready for dyeing. Pale shades require weaker tannin baths than dark ones: too strong a mordant may cause insufficient penetration and uneven dyeings. Whilst being mordanted and dyed, the goods should on no account come into contact with iron. In place of tannin, from 8 to 4 times the quantity of sumac or sumac extract may be used for less bright shades; for dark shades antimony salt may be replaced by pyrolignite or nitrate of iron which yield both pale and dark grey bottoms suitable for fixing basic dyestuffs. The dyeing is done cold; the dye-bath is prepared with 5o acetic acid and 3 to 50 /o Irisamine G pat ] Violet .ili No 1. 1% Brilliant Green cryst. extra. i'-e - -f -r ;; r_::;- — : -'i ;:; rs:\i=;- '.z. h.i'J.:--7:z~ - : - : :s~?.r:> :::~:. _Z. On a sumac— iron mordant : - Brilliaat :~zz srysfc extra. _ : : -■:=— ir:^: :?:— - jl^. . P™ If the cotton-dyeing with basic dyestuffs has : done on goods composed of cotton and wool, or cotton and silk, and in which the wool or the silk have already iyed with either acid or bas stuffs, the mor- danting with tannin or sumac must be done cold, but in stronger liquors than for pure cottons, the rest of the operation being the same as recommended above. The g proper has alfi lone in perfectly cold liquors in order to prevent the wool or the silk from taking much dye. Should this happen in spite of precautions •ipping with weak hydrochloric r a lukewarm bath of soap, or soap bark, ie mended. VI. The Dyeing of Linen and China-Grass. The dyeing of linen and China-grass is done according to the same principle and with the same dyestuffs as used for cotton; the linen fibre being harder and more impene- trable than cotton, the greatest care must be taken in boiling before dyeing. Diamine Colours can be made to penetrate well by using only small quantities of Glauber's salt, and basic dyestuffs by mordanting in weak but hot Liquors, and increasing the quantities of either acetic acid or alum added to the dye-bath. VII. The Dyeing of Jute and Cocoa-nut Fibre. Jute and cocoa-nut fibre may be dyed with Diamine Colours according to the same directions as for cotton, or with basic dyestuffs. In the latter case, mordanting with tannin is superfluous, as basic dyestuffs dye direct in a bath of 175 — 212° F. weakly acidulated with acetic acid. For goods which are difficult to penetrate, an increase in the quantity of acetic acid, or gentle boiling, will be necessary. There are also a number of acid dyestuffs which are applicable with advantage for dyeing bright reds and blues on jute, amongst which special mention may be made of the Brilliant Crocei'nes and Soluble Blues, all of which are dyed in a boiling hot bath with an addition of 5o/o alum and 5 0/0 Glauber's salt; the baths do not exhaust, and the first bath must therefore be started somewhat stronger. As to the treatment before dyeing, it is in most cases sufficient if the goods be boiled in a weak solution of soda ash followed by a souring off with sulphuric acid; should bleaching be necessary, it can be effected by a treatment withEau de Javelle (chloride of soda) and subse- quent souring, or with permanganate and sulphurous acid. Below we give a few patterns of dyed jute cloth; other shades are shown in our pattern card No 2022. 270 30/0 Brilliant CrooeYm <>,:s°/o Itrilliunt (Iri'oii oryx I. extra 1 °/o CbrysoYdine A .. '-"111111011 salt I 5,4 .. acetate of soda (cryst.) / After Leaving the skins for a few hours in the liquor the leather is tested by cutting in order to see whether it has been properly saturated by the liquor; if this be the case, another 3,6 oz chromium oxy chloride are added and the skins are lefl in the liquor for 24 to 36 hours. being given on occasional turn. They are then lifted, thoroughly rinsed, and hydro extracted. The Dyeing of Skins and Rugs. 69 The skins are then entered into a cold bath of l 3 /4 pints hydrochloric acid per 22 gallons water, where they are left for r 4 hour, and thereupon put into a chloride of lime bath (well dissolved and settled). Having worked them for about 20 minutes in the liquor, 12 cz ( 3 /± pint) spirits of salts are added, and they are worked for another ten minutes: they are then put back for another J/i hour into the first bath of spirits of salts which has been strength- ened in the meanwhile with another pint of hydrochloric acid. The skins are thereupon well rinsed. To the last (lukewarm) rinsing water, 3 to 4 X /^ oz hyposulphite of soda per 10 gallons are added, which is followed by a final thorough rinsing. After hydroextraeting. the skins may be dyed with any acid dy. stuffs in baths up to 167° F. without fear of detriment to the leather. Care must however be taken to add the dyestuff in several portions and to keep the tempe- rature low in the beginning, gradually increasing it to :'. The additions of bisulphate of soda, acids and Glauber's salt are similar as for wool. The skins are well hydro extracted after dyeing, painted on the flesh side with a strong solution of common salt, and dried at not too high a temperature. XL Appendix. The ground colours of the articles being an important consideration in the re-dyeing and frequently needing removal in order to obtain good results, it is well to mention some of the methods of stripping or decolourising goods. The processes chiefly resorted to are 1) Stripping in alkaline baths, 2) Stripping with oxydising agents, 3) Stripping with reducing agents. 1) Stripping in Alkaline Baths. The alkalies employed are either soda carbonate or ammonia. The concentration of the stripping liquor depends upon the depth of the ground colour and the nature of the dyestuff it has been produced with. The bath must neither be too strong nor too hot, as it might otherwise injure the wool or the silk. If the ground colours of the goods show a tendency to come off with alkaline liquors, an increased effect can be obtained by boiling in wheat bran. For this purpose the goods must be several times well washed in warm water after leaving the alkaline liquors and then be boiled for a short time in water containing 1 to 2 lbs wheat bran per 10 gallons. 2) Stripping with Oxydising Agents. Those generally employed are either nitric acid, or bichrome and sulphuric acid; ili«' goods must in cither ease '"■ previously stripped and cleaned \\ ith soda solution. Appeudix. - 71 The stripping with nitric acid is done at the boil by leaving the goods in a bath containing 1 /2 to 1 gallon nitric acid per 10 gallons until sufficiently decolourised. After a good rinsing, the garments are neutralised with alkali or ammonia. The resulting colour is generally a uniform, reddish yellow. The stripping with nitric acid is best done in stone- ware or wooden vessels; in place of nitric acid, sodium nitrite (4 to GO/o) and sulphuric acid (8 to 120/o) can be used. The stripping with bichrome and sulphuric acid is likewise done at the boil; the usual quantities are 3 to 4o/o bichrome and twice the quantity of sulphuric acid, the treatment lasting about 1 l2 hour. i 3) Stripping with Reducing Agents. Of these, hydrosulphite of soda is the one exclusively employed of late; although somewhat more expensive than the afore named agents, it yields far better results. Hydrosulphite is prepared as follows: The commercial, liquid bisulphite of soda of 67° Tw. is diluted down to 32° Tw., */ 2 pint of ammonia (0,9 sp. g.) added to each gallon, and 1 /-2 lb zinc dust slowly stirred into this solution. After allowing to settle for 1 /2 hoar, the clear solution is used. The stripping bath is prepared by adding to each 25 gallons of water 1 to 2 gallons of the above solution, each gallon of which has been previously acidulated with 1 oz of acetic acid of 10° Tw. The goods are treated in this bath at the boil for 10 to 15 minutes. Solution of hydrosulphite should not be preserved too yielding best results when prepared fresh for each special occassion. Without guarantee. NK8804 .C38g stack Cassella Color Comp/Garment dyeing. Cass •<*>• >^tv •XagRfX^^S^ra^^^aR