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.