Liquid Alpha Amylase For Desizing Of Textile Fabrics With Excellent Heat Resistance

Liquid Alpha Amylase For Desizing Of Textile Fabrics With Excellent Heat Resistance

Product Details:

Place of Origin: Jiangsu China
Brand Name: Boli
Certification: Halal, Kosher ISO9001, ISO14001, ISO22000
Model Number: Heat-stable Alpha-Amylase TH-18

Payment & Shipping Terms:

Minimum Order Quantity: 400kg
Price: Negotiable
Packaging Details: 25kg, 30kg HDPE drums, 1125 IBC totes for liquid
Delivery Time: 15-20 days
Payment Terms: T/T, L/C , D/P
Supply Ability: 1000MT to 1500MT Per Year
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Detail Information

Grade: Technical Grade Apperance: Light To Dark Brown Liquid
Application: Suitable For Desizing Of Textile Fabrics Such As Cotton, Silk, Polyvinyl Alcohol Fibers, Rayon Fibers, Blended Fabrics, Dyed Poplin, Etc. Application Temperature: 83℃~100℃
Application PH: 5.4~6.4 Activity:: 180,000 U/ml (minimum)
Country Of Origin: China Sample: Free Sample Available
High Light:

fungal alpha amylase


alpha and beta amylase

Product Description


Low Dosage Rate Heat-stable Alpha-Amylase For Textile Desizing

High concentration ,

No damages to fabrics,

Makes texture soft, full, smooth and bright,

Ensures a high desizing rate of 90 ~95%

Halal & Kosher Certified

Heat-stable Alpha-Amylase TH-18 is produced from strains of Bacillus licheniformis through submerged fermentation, extraction and refining process. It is an endoamylase that can efficiently decrease viscosity of gelatinous starch solutions by randomly hydrolyzing starch, glycogen and its degradation products within the alpha-D-1 glycosidic bonds and produces soluble dextrins and oligosaccharides under high temperature and low pH conditions.
TH-18 has an excellent heat resistance and a wide pH range. It is suitable for desizing of textile fabrics such as cotton, silk, polyvinyl alcohol fibers, rayon fibers, blended fabrics, dyed poplin, etc.
As a high concentration product, TH-18 can be used after dilution.


Declared Enzyme: Alpha-Amylase
Activity: 180,000 U/ml (minimum)
Systematic Name: EC, 1,4-alpha-D-glucan glucanohydrolase
Appearance: Sepia brown liquid
Specific Gravity: 1.10 to 1.25 g/ml
Product pH: 5.8 to 6.8


Liquid Alpha Amylase For Desizing Of Textile Fabrics With Excellent Heat Resistance 0

TH-18 is active over a wide pH range, depending on the application conditions. The optimal pH is 5.4 to 6.4.

Optimum temperature of TH-18 for interval liquefaction is above 77°C. It liquefies starch substrates promptly at 83 to 90°C and demonstrates exceptional thermal stability at 100 °C. The exact temperature optimum depends on actual processing conditions, such as pH, concentration of substrate and time.


Copper, titanium, and cobalt ions are moderate inhibitors for TH-18, whereas aluminum, lead and zinc ions act as strong inhibitors.


Use of TH-18 can ensure the following benefits for textiles de-sizing:

  1. Enable desizing and colour-fixing at the same bath, shorten process flow and improve productivity
  2. Enhances capillary tube effect of fabrics
  3. Improves working conditions for operators
  4. Enables less dosage, reduces processing costs


Recommended industrial operating conditions are at temperatures from 80 to 90 ° C and pH from 5.6 to 6.4. Usually, adjust the pH first, then add this product. Due to the structure of fabrics, the amount of sizing, the desizing process and the desizing equipment are different, the exact dosage rate of this product shall be determined after a series of small desizing tests prior to routine use. Generally, the recommended concentration of the enzyme solution is 0.05 to 1 g/L.


Standard packaging is 25kg, 30kg HDPE drums or 1125 kg IBC totes.
Typical shelf-life is six months if this product is stored below 25°C in its original packaging, sealed and unopened, protected from sunlight. Its shelf-life will be eighteen months if this product is stored properly at 0 ∼10°C. This product has been formulated for optimal stability. Prolonged storage and/or adverse conditions such as higher temperature may lead to a higher dosage requirement, therefore should be avoided.


Inhalation of enzyme dust and mists should be avoided. In case of contact with the skin or eyes, promptly rinse with water for at least 15 minutes. For detailed handling information, please refer to the Safety Data Sheet.

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