Classy The Fixation Of Direct Dyes

MST® Classy The Fixation Of Direct Dyes that can dissolve directly in water and have high directness to cellulose fibers without the need to use relevant chemical methods to color fibers and other.You can rest assured to buy MST® Classy The Fixation Of Direct Dyes from our factory and we will offer you the best after-sale service and timely delivery.

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Product Description

MST® Classy The Fixation Of Direct Dyes

With our leading technology as well as our spirit of innovation,mutual cooperation, benefits and development, we will build a prosperous future together with your esteemed company for Super Lowest Price China Top-Selling MST® Classy The Fixation Of Direct Dyes, We fully welcome customers from all over the world to establish stable and mutually beneficial business relationships, to have a bright future together.
Super Lowest Price China Classy The Fixation Of Direct Dyes, Our products are sold to the Middle East, Southeast Asia, Africa, Europe, America and other regions, and are favorably appraised by clients. To benefit from our strong OEM/ODM capabilities and considerate services, please contact us today. We will sincerely create and share success with all clients.

Direct dyes refer to dyes that can dissolve directly in water and have high directness to cellulose fibers without the need to use relevant chemical methods to color fibers and other

Classy The Fixation Of Direct Dyes factory

Production Basic data of MST® Classy The Fixation Of Direct Dyes:

Product Name

Direct Sky Blue 5B

Direct Copper Blue 2B

Direct Brown M/Direct Brown MN

 C.I. NO.

Direct Blue 15

Direct Blue 151

Direct Brown 2

Type:

Direct dyes

Direct dyes

Direct dyes

CAS No.

2429-74-5

110735-25-6

2429-82-5

EINECS No.:

219-385-3

24175

219-391-6

MF

C34H24N6Na2O16S4

C34H25N5Na2O10S2

C29H19N5NA2O7S

Molecular Weight

 
926.8585

773.69

583.5713

 Tinting Strength (%)

100%-120%

100%- CONC 150%

100%

Appearance

Blue powder

Blue powder

Dark Brown Powder

Moisture%

≤0.3%

≤0.3%

≤5%

Insoluble

≤0.3%

≤0.3%

≤1.0%

H.S

32041400

32041400

32041400


The sulfonic acid group or carboxylic acid group in the direct dye molecule has strong water solubility, and only depends on the van der Waals force and hydrogen bond to be fixed on the fiber. The wet fastness of the dye is low, which is easy to cause fading or staining. Classy The Fixation Of Direct Dyes is very important

There are the following two methods for MST® Classy The Fixation Of Direct Dyes:

1、 Post-treatment of metal salts

1)The fixation ofdirect dyes mechanism: The dyes and financial ions on the fiber form a stable complex with low water solubility, which improves the wet fastness of the dye.

2)Commonly used metal salts are copper salts, such as copper sulfate, copper acetate, and copper tartrate. Therefore, such dyes are called direct copper salt dyes.

2、Post-treatment of cationic fixing agent

1) Classy The Fixation Of Direct Dyes principle: Direct dyes are anionic dyes, When treated with cationic fixing agents, the cationic fixing agents and anionic dyes combine to seal the water-soluble groups to form precipitates, thereby improving the wet fastness of the dyes. It can form a resin film on the surface of the fabric, further seal the dye, increase the smoothness of the fabric, reduce the friction coefficient, reduce the swelling, dissolution, and shedding of the dye during the "wet friction" process, thereby improving soaping, perspiration, water immersion, and friction Color fastness.

2)Common fixing agent used for Classy The Fixation Of Direct Dyes

  a. Common type: cationic surfactants, which can block the water-soluble groups of anionic dyes and form lakes on the fibers with the dyes; non-surfactants, improve the washing fastness;

b.Formaldehyde condensate: a resin condensed by dicyandiamide and formaldehyde, which can directly reduce the solubility of the dye on the fiber, and contains formaldehyde.

Polyamine compound: water-soluble resin, formaldehyde-free fixing agent, with a network structure, and ionic bond with the anionic group in the dye to improve the wet fastness. It can be cross-linked with the hydroxyl group in the fiber to further improve the dyeing fastness.

C:Reactive fixing agent: Form salt with dyes, block water-soluble groups to form precipitates, crosslink with amino, amine and hydroxyl groups in fibers and dyes to improve fastness to wet treatment

NO.

Color sample

Dyes name

Strength

International Numbering

Packing

1

Direct yellow R

150%

Direct Yellow 11

25Kg/DR

2

Direct frozen yellow GX

100%

Direct Yellow 12

25Kg/DR

3

Direct Orange S

100%

Direct Orange 26

25Kg/DR

4

Direct Orange 2GL

200%

Direct Brown 39

25Kg/DR

5

Direct yellowish-brown D3G

100%

Direct Brown 1

25Kg/DR

6

Direct deep brown M

100%

Direct Brown 2

25Kg/DR

7

Direct red brown MN

100%

Direct Brown

25Kg/DR

8

Direct Bordeaux B

100%

Direct Red 13

25Kg/DR

9

Direct acid proof scarlet 4BS

100%

Direct Red 23

25Kg/DR

10

Direct red 4BE

100%

Direct Red 28

25Kg/DR

11

Direct pink 12B

100%

Direct Red 31

25Kg/DR

12

Direct fast red F3B

150%

Direct Red 80

25Kg/DR

13

Direct green B

100%

Direct Green 6

25Kg/DR

14

Direct blue 2B

100%

Direct Blue 6

25Kg/DR

15

Direct lake blue 5B

100%

Direct Blue 15

25Kg/DR

16

Direct fast blue B2RL

100%

Direct Blue 71

25Kg/DR

17

Direct light turquoise blue GL

100%

Direct Blue 86

25Kg/DR

18

Direct copper blue 2B

100%

Direct Blue 151

25Kg/DR

19

Direct ash D

100%

Direct Black 17

25Kg/DR

20

Direct fast black G

100%

Direct Black 19

25Kg/DR


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