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 DIRECT DYES
 
 

ORMINE dyes are water soluble substantive dyes. ORMINE dyes cover the entire shade gamut and are easy to apply. They have good levelling property and are cost effective. ORAMINE dyes for cellulosics possess excellent light fastness properties. Certain dyestuffs within this range are suitable for high-temperature dyeing of cellulosic/polyester blends. In general, they may be applied on cotton by any method and most of the dyes in the range are even suitable for package dyeing of cotton yarn. ORMINE dyes can also be used to dye jute and coir.

ORMINE dyes can be used on

Application

Cellulose

Polyamide

Silk

Leather

Paper

PC blends

 

Due to the vast amount of applications using Direct Dyes,
please contact us to discuss your specific requirements

 

SR. NO.

SHADES

ORMINE

C. I. NAME

C. I. NO.

CAS NO.

1

BRILLIANT YELLOW 3 GX

DIRECT  YELLOW 6

40001

1325-38-8

2

 

YELLOW CFG H/C

DIRECT  YELLOW 8

13920

--

3

PAPER YELLOW T

DIRECT  YELLOW 11

40000

1325-37-7

4

CRYSOPHENINE GCH H/C [HEAVY]

DIRECT  YELLOW 12

24895

2870-32-8

5

Direct dyes

YELLOW G

DIRECT  YELLOW 28

19555

8005-72-9

6

YELLOW R

DIRECT  YELLOW 29

19556

6537-66-2

7

Direct dyes

YELLOW 5GLL

DIRECT  YELLOW 44

29000

8005-52-5

8

SUPRA YELLOW RL

DIRECT  YELLOW 86

29325

50925-42-3

9

SUN YELLOW RCH

DIRECT  YELLOW 99

--

--

10

ORANGE SE

DIRECT  ORANGE 26

29150

3626-36-6

11

Direct dyes

ORANGE GL

DIRECT  ORANGE 34

40220

12222-37-6

12

Direct dyes

ORANGE 7GLL

DIRECT  ORANGE 37

40265

--

13

ORANGE TGLL

DIRECT  ORANGE 39

40215

1325-54-8

14

ORANGE WS

DIRECT ORANGE 102

29156

6598-63-6

15

VIRCOSE ORANGE A

DIRECT ORANGE 108

29173

--

16

BORDEAUX 6B (EXP.STD.)

DIRECT  RED 16

27689

--

17

FAST SCARLET 4BS

DIRECT  RED 23

29160

3441-14-3

18

RED 12B

DIRECT  RED 31

29100

--

19

Direct dyes

RED 5BR

DIRECT  RED 80

35780

259604

20

RED 5BL

DIRECT  RED 81

28160

259636

21

Direct Black

RED 2BL

DIRECT  RED 83

29225

15418-16-3

22

BROWN 3R 133%

DIRECT RED 111

40290

90880-77-6

23

LIGHT ROSE FR

DIRECT  RED 227

--

60602-35-9

24

SCARLET 6BS

DIRECT  RED 239

--

--

25

PINK 3B (SF)

DIRECT  RED 254

--

--

26

VIOLET MB

DIRECT  VIOLET 9

27885

6227-14-1

27

VIOLET BB

DIRECT  VIOLET 35

27915

--

28

Direct Black

HELIO B

DIRECT  VIOLET 51

27905

5489-77-0

29

SKY BLUE FB

DIRECT  BLUE 1

24410

2610-05-1

30

SKY BLUE FF

DIRECT  BLUE 15

24400

--

31

Direct Black

BLUE 3RL

DIRECT  BLUE 67

27925

--

32

BLUE GLL

DIRECT  BLUE 71

24140

4399-55-7

33

BLUE RLL

DIRECT  BLUE 80

--

12222-00-3

34

T. BLUE SBL

DIRECT  BLUE 86

74180

1330-38-7

35

Black 22

BRILLIANT BLUE BL

DIRECT  BLUE 106

51300

6527-70-4

36

TURQ. BLUE FBL

DIRECT  BLUE 199

--

--

37

BLUE GRL

DIRECT  BLUE 200

--

72927-72-1

38

BLUE 2R

DIRECT BLUE 290

--

--

39

GREY D

DIRECT BLACK 17

27700

--

40

BLACK VB (SF)

DIRECT  BLACK 19

35255

6428-31-5

41

BLACK NBL

DIRECT  BLACK 22

35435

6473-13-8

42

GREY RLN

DIRECT  BLACK 56

34170

8003-57-4

43

BLACK OB

DIRECT  BLACK 80

31600

8003-69-8

44

BLACK B7

DIRECT  BLACK 155

--

--

45

BLACK AR

DIRECT  BLACK 168

--

85631-88-5

46

Direct Black

GREEN BL

DIRECT GREEN 26

34045

6388-26-7

47

GREEN NB

DIRECT GREEN 114

--

--

48

BROWN GTL

DIRECT BROWN 210

--

70892-30-7

 
Please note that the colours on this document are for demonstration purposes only as colours vary with individual monitors and therefore cannot be guaranteed as accurate.
 
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Additional special  Direct Dyes offered  on request.

Direct  Red : 72, 79, 89, 243.
Direct  Black : 62, 112, 165, 170.
Direct  Yellow : 50, 107, 118, 132, 142, 147, 157.
Direct  Green : 9, 28, 44, 96.
Direct  Blue : 62, 201, 218, 222.

Dyeing is normally done in a neutral or slightly alkaline dyebath, at or near the boil, with the addition of either sodium chloride (NaCl) or sodium sulphate (Na2SO4). Also known as hot-water dye, this type can be used with hot tap water and requires no leveling or exhausting agents. It is convenient but lacking in light-fastness and wash-fastness. Direct dyes are used on cotton, paper, leather, wool, silk and nylon. They are also used as pH indicators and as biological stains.

Direct dyes are another class of dyes, one of the two types of dyes that are mixed in 'all purpose' dyes such as Rit. (The other type in the mixture is an acid dye, which will not stay in any cellulose fiber for long.) The colors of direct dyes are duller than those provided by fiber reactive dyes, and the wash fastness is poor - except anything dyed with them to 'bleed' forever. The one advantage is that direct dyes may be more lightfast, that is, resistant to fading in the light, than fiber reactive dyes. The "direct dye" classification in the Color Index system refers to various planar, highly conjugated molecular structures that also contain one or more anionic sulfonate group. It is because of these sulfonate groups that the molecules are soluble in water. Though most direct dyes still can be obtained in powder form, it is increasingly popular to receive them as liquid concentrates. The advantage of concentrates is that they are easy to handle and meter. The disadvantage is that the surfactants and co-solvents needed to keep the dye concentrates stable may interfere with retention and sizing in the case of very deeply colored grades.

Direct dyes are used on cellulose fibers such as cotton, rayon, and linen. They lack the permanence of the cold water fiber reactive dyes which most serious dyers prefer for use on cellulose fibers, but in some cases they have advantages that make their use worthwhile. For example, while many of the direct dyes are not very lightfast, there are some dyes in the class that may be more lightfast than similar shades of fiber reactive dyes. All direct dyes do perform rather poorly with respect to washfastness. Without an appropriate after-treatment, direct dyes bleed a little with every washing, losing their brightness and endangering other clothes washed in the same load. However, there are special after-treatments which may be used to solve this problem. (Vinegar is not among them! In spite of claims you may see to the contrary, you cannot use vinegar to set any dye on cotton or other cellulose materials.) A product named Retayne, which is an ionic bulking agent which essentially "glues" the dye into the fiber, works very well to make fabric dyed with direct dyes washable without bleeding of the dye.

The name 'direct dye' alludes to the fact that these dyes do not require any form of 'fixing'. They are almost always azo dyes, with some similarities to acid dyes. They also have sulphonate functionality, but in this case, it is only to improve solubility, as the negative charges on dye and fibre will repel each other. Their flat shape and their length enable them to lie along-side cellulose fibres and maximise the Van-der-Waals, dipole and hydrogen bonds. Below is a diagram of a typical direct dye. Note that the sulphonate groups are spread evenly along the molecule on the opposite side to the hydrogen bonding -OH groups, to minimise any repulsive effects.
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