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Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye

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China Jiangsu World Chemical Co., Ltd certification
China Jiangsu World Chemical Co., Ltd certification
Under here with, we would like to say that the dyestuff provided by World Chemical Co., Ltd. works very well, especially the vat dyes.

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Our company is grateful to the company World Chemical Co., Ltd. for fruitful and long-term cooperation. The quality of the products provided satisfies

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—— Amy Adam

Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye

Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye
Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye

Large Image :  Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye Get Best Price

Product Details:
Place of Origin: CHINA
Brand Name: WLDCHEM
Model Number: Reactive blue 21
Payment & Shipping Terms:
Minimum Order Quantity: 100kg
Price: USD3-5/KG
Packaging Details: 25KGS Carton Box or Plastic Drum(optional) with inner plastic bag
Detailed Product Description
Self Life: 2 Years Appearance: Powder / Granular
Dyeing Methord: Dip Dyeing Purity: 100%
Business Type: Manufacturer Standard: International Standard
High Light:

synthetic fabric dye


fabric colour dye

Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye


Product Description


Product Name Reactive blue 21 fabric reactive dyes powder tie dye for cotton fabric
C.I Number C.I. blue 21
Appearance Powder / Granular
Strength 100%
Solubility 180
Light fastness 5-6
Washing fastness 3
Perspiration(AL) 3-4
Perspiration(AC) 3
Chlorine Bleaching 2-3
Rubbing(DRY) 4
Rubbing(WET) 3
Hot Pressing 4-5
Company Information


Jiangsu World Chemical Co., Ltd. is an enterprise of science and technology with high starting point,specializing in the production of environmental dyes.


In response to high quality requirements for dyeing and printing industry,we have independently developed "WORLD" brand of the production of environment reactive dyes.


1. P-type reactive dye of Efficient Printing series


2. P-type reactive dye of Printing series


3. PSE-type reactive dye Prevent Printing


4. PSE-type reactive dye Discharge Printing


5. S-type reactive dye Dip dyeing series


6. W-type reacitve dye Pad dyeing series


7. K,KN,M-type conventional reactive dye series


Packaging & Shipping

1. 25KG or 50KG Individual package as needed

2. Inner: Two Plastic bags or as you needed

3. Outer: Carton box or plastic drum (Optional)

4. Customized packages


Dyeing process preparation and optimization
Preparation of dyeing process and optimization of dyeing process of air flow dyeing machine is based on dye dyeing characteristics, so before programming, we must be familiar with the characteristics of dyes used. Each additive must take into account the effect of the additive on the affinity of the dye and the fabric, to determine the addition of the additive, which is mainly based on the influence of salt and alkali on the affinity and directness of the fabric. Each dye has a specific dyeing process, so the dyeing process of the airflow dyeing machine must be tailored to the dye characteristics. In a word, as long as each dye is very well understood, it can be produced quickly and good dyeing process. Depending on the characteristics of the dye, we can be divided into the following categories:
1. Some dyes in the sodium sulfate will make the dye and fabric affinity between the increase, we call it salt-controlled dyes, you must control the speed of the Canadian dollar powder, add alkali can be appropriate faster, such as Ciba's FN series, dyeing eight plants of the EF, Korea long spd, ya Yun ee type, and conventional 2GF (or BF), 3BS and 3RS combination of dyes.
2, some dyes in soda ash will make the affinity between dyes and grey fabric increased, we call these dyes alkali-controlled dyes, at the time of production, it is necessary to control the speed of soda ash, the Canadian dollar powder can be faster, or add dye before adding back, such as kn black, kn blue, Navy, CIBA S series such as ethylene sulfone is this type.
3. If the salt-control and alkali-control of the two dyes mixed together in the dyeing will cause very poor compatibility, is equivalent to produce two times dyeing, if the Canadian dollar and soda powder speed control is very slow, on the one hand dyeing process time will be long, on the other hand, may not do well. In many cases, however, the combination of less compatible dyes is used in order to consider the 1 problem of cost or jump-burn. such as, kn blue (or kn black) and 3BS into brilliant purple, the former is not very sensitive to sodium sulfate, but after adding alkali agent reaction speed, the latter on the sodium sulfate has a certain degree of dependence, but after adding the alkali agent, even in 60 ℃ reaction is still very slow. For this combination of bad compatibility, we can use the pre-add soda process. The so-called pre-alkali, is to add a small amount of alkali before the dye, it can cause a part of the dye to eliminate the reaction and have a lively, and will not cause excessive negative fiber. Pre-alkali dosage is generally about 5% of the total alkali content (depending on the proportion of alkali-controlled dyes).
Elimination reaction of vinyl sulfone active radicals:
Blue Indigo Dye Powder Tie Dye Reactive Blue 21 Fabric Reactive Dye 0

Contact Details
Jiangsu World Chemical Co., Ltd

Contact Person: Allison

Tel: +8615861504187

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