DHK98001 is a concentrated liquid acid cellulase product manufactured using controlled liquid submerged fermentation and advanced down-stream processing. It is effective in the bio-polishing of cellulosic fabrics in the dyeing industry, as well as enzyme washing in garment laundering industry. The product can be used directly or diluted as necessary.
Properties
--Wide pH range from pH 4.0~5.5
--Better thermostability with maintained performance at temperatures as high as 60°C and as low as 30°C.
--Outstanding performance in the bio-polishing of cellulosic fabrics without reducing fabric integrity.
--High efficiency in denim washing (e.g. erosion) with high contrast and low back-staining
Technical Index
Appearance: brown liquid
Specific gravity: 1.10 ± 0.1
pH: 4.0~5.5
Application
The preferred process conditions:
1. Polishing for knitted dyeing industry
-Enzyme dose: 0.1-0.5% o.w.f
- Liquid garment ratio: <1:10
- pH: 4.0~5.0
- Temperature: 40~60°C
- Treatment time: 60 min
2. Polishing for common casual fabrics
-Enzyme dose: 0.1-0.5% o.w.f
- pH: 4.0~5.5
- Temperature: 40~60°C
- Treatment time: 40~50 min
3. Polishing for casual fabrics with high color and fiber strength retention
-Enzyme dosag: 0.3-1.5% o.w.f
- pH: 4.0~5.5
- Temperature: 40~50°C
- Treatment time: 10~60 min
4. Denim washing
-Enzyme dose: 0.1-0.5% o.w.f
- pH: 4.0~5.5
- Temperature: 40~50°C
- Treatment time: 40~50 min
Dilution
Dilution formulation
DHK98001: X% (according to application),
Sorbitol: 5~25%
Sodium benzoate: 0.2%
Add water to 100%.
Dilution protocol
Mix sorbitol and sodium benzoate into water, then add DHK98001.
Notes
The formulation does not contain a buffer system, because DHK98001 itself contains buffer system and can be used at a wide range of pH values;
Strictly in accordance with the order to add raw materials;
Using sodium chloride to adjust the specific gravity;
Sorbitol improves the biopolishing performance of DHK98001. Thus, increase the amount of sorbitol amount as needed.
Inactivation
a: using Sodium Carbonate to make the solution pH up to 9.0 or increase temperature up to 80℃, at least keep 10min; washing the fabrics two times, then you can process to the next step.
b: to treat with bleaching
Packaging
standard package of 30 kg plastic barrel.
Storage
The product should be kept in cool, dark and dry place with temperature below 25°C without direct sunlight. When stored as suggested and in the original container, product can be considered full strength for up to 6 months.
