Hongtu Will Tell Your the Functions and Characteristic of Substitute Alkali

1. property



1. Appearance: White powder
2. Main content: alkali (no NAOH KOH contained)
3.  PH value: （1%）12±1 
4.  Ionicity: anion
5.  Solubleness: good solubleness, twice of soda. Low-content impurities, transparent water solution.
6. Solid content: about 90%

2 Characteristics
1. The Hongtu's substitute alkali 25kg small bag is easy to handle. And no fly ash as sodium carbonate. 
2.  The usage amount of Hongtu's substitute alkali is 1/8-1/10 of sodium carbonate.
3. Hongtu's substitute alkali has good dispersibility, it will prevent the produce of writing. And the fiber color is bright.
4. Hongtu's substitute alkali have good buffering power and high solubility.  It is the twice of the sodium carbonate. And with good leveling effect on the cotton fabric. And it will prevent the occurs of dyeing effect.
5. It will save 40% water and 30% acid after the dyeing of fabric with the Hongtu's substitute alkali. 
6. Hongtu's substitute alkali is cheaper and it will lower the cost. And compared with sodium carbonate, it will save 50% cost. 
7. When Hongtu’s substitute alkali dissolves in water, it will not emit heat.



3. Application



1.The recommended process of Hongtu’s substitute alkali dyeing: yarn, piece dyeing 
Note:
(1) General dosage:  light color:1-1.5g   neutral colour:1.5-2 g  dark color: 2.5-3 g 
(2) Referring to the weight of the dyed fabric and the bath ratio, and calculate the dosage of the substitute alkali and weight.  The glossiness of the fabric dyed by Hongqi substitute is different from the sodium carbonate. Please make a sample in the lab first to seek the dosage of the substitute alkali and proper dye first and then use in the production. (the substitute alkali is 1/8-1/10 of the sodium carbonate. The user can adjust the usage according to the actual  situations)
(3)The substitute alkali is high concentrate product, which has high requirement on the operation. But because of the difference in the operator’s technical level, experiment, and self-responsibility, we’d better add 10% sodium carbonate to ensure the fabric’s dyeing quality. In case of the small mistake made by the dyer,  there will not be great influence on the up-taking rate and glossiness.
(4) For some special colors, such as, bright red and purplish red, the dosage of the sodium carbonate can increase to 15%. And at the time of dyeing, the temperature rise should be not too fast, in case the discoloration caused by partial high temperature. 
(5) Add the Hongtu substitute alkali at room temperature and increase the temperature. Be sure not to add the substitute alkali under 60℃ and up. 

Alkali Substitute/Organic Substitution Alkali for Dyeing 071

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【Brief information】

1.HT-071 is a brand new alkali substitute by advanced technology of EU and US.

2.Amount of HT- 071 is only 1/10 of soda ash, and better washing and rubbing fastness than that of soda ash.

3.Saves water and energy while HT- 071 requires 2 to 3 times washing and soda ash requires at least 4 times.

4.Lower COD that lowers ETP cost and achieves cost saving and environment protection.

【Main composition】Alkali compound of organic and inorganic substances.

【General properties】

Appearance: white powder

pH: 10.5 – 11.5 (1% solution)

Ionicity: nonionic

Solubility: easily soluble in water

Stability: stable to acid, alkali, electrolytes and hard water

【Product features】

1.An optimized alkali substitute with excellent buffer performance that can replace soda ash while the amount is only 1/10 of soda ash in cellulose fibres and their blends dyeing with reactive dyestuffs. Meanwhile, confers controllable synchronous dyeing and fixing.

2.Does not cause white spots due to low quality water with high concentration of calcium and magnesium ions, or residual carbonates from incomplete washing of soda ash.

3.Easy dilution and operation with low cost.

4.Suitable for all kinds of equipments and various reactive dyestuffs with synchronous dyeing and fixing at different water ratio.

【Application】

Dilution: weighs exact amount and dilutes 10 times in auxiliary tank before dyeing tank.

Dosing: does slowly add 1/3 of the amount, and then adds the leaving 2/3 at a time.

Dosage: 1/10 of soda ash

Dipping: calculates at water ration while bath ratio is above 10 and O.W.F while bath ratio is below 10.

【Packaging and storage】

25 kg/bag, 12 months in sealed packing at room temperature and keeps off moisture

【Notes】

The data contained in this literature are based on our current knowledge and experience. It is imperative that it be tested to determine, to your satisfaction, whether it is suitable for your intended use and application. We shall not take any responsibility in any situation for improper use.

【Sample supply】

If you need samples for testing, please feel free to contact us, we will recommend suitable products according to your requirement.