Indian
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Americos Industries Inc.
Category : Chemicals
Americos Amylase 180 is a desizing agent based on bacterial alpha amylase. It is a mixture of highly concentrated alpha-amylase, wetting agent and lubricant to convert most of the sizes viz. starch, starch derivatives, synthetic sizes and their blends into water soluble products. Specifically it can be used for the following sizing materials and their combinations:
Americos Amylase 180 has three different types of actions. The built-in wetting agent ensures proper penetration of enzyme in the textile material. The enzyme then converts the starch sizes in to soluble dextrin products, which can be easily removed in the subsequent washings. Moreover, the in-built lubricant reduces fiber to fiber and fiber to metal friction. This unique combination prevents the formation of unwanted creases, streaks, lines and crack marks during desizing process.
Physical Property
|
Appearance |
Viscous Liquid |
|
Chemical character |
Blend of amylase enzyme and non-ionic surfactants |
|
Ionic Nature |
Non-ionic |
|
Solubility |
Readily soluble in water |
|
pH (on 1% solution) |
7 ± 1 |
|
Application pH range |
6-7 |
|
Application temperature |
60-70oC |
Stability
|
Hard water |
Good, Ca2+ and Mg2+ ions increase the efficacy of the enzyme |
|
Acids |
Good from pH 5 to 7 |
|
Alkalis |
Stable in alkaline region from pH 7 to 9 |
|
Metal ions |
Iron and copper ions are poisonous for enzymes |
Compatibility
|
Non-ionic surfactant |
Generally very good |
|
Anionic surfactant |
Selective, some reduce the efficacy of the enzyme |
|
Solvent based surfactant |
Selective, some reduce the efficacy of the enzyme |
|
Organic sequestrates |
Generally good |
|
Reducing / oxidizing agent |
Reduce the efficacy of enzyme |
Application Methods
Americos Amylase 180 can be applied by any one of the following techniques.
(a) Exhaust application (jigger, soft-flow m/c and winch)
|
Americos Amylase 180 |
1 - 2 ml/l |
|
Americos Lub Pro VX |
0.5 - 1 g/l |
|
Temperature |
60-70°C |
|
pH |
: 6-7 |
|
Time |
: 30-60 min. |
|
After the treatment, drain the liquor; give one hot wash and then one cold wash. Alkaline washing with soda ash improves the removal efficiency of degraded sizing material. |
|
(b) Exhaust application (wash-wheel)
|
Americos Amylase 180 |
1% (owg) |
|
Americos Lub Pro VX |
0.5 - 1 g/l |
|
Temperature |
60 - 70°C |
|
pH |
6 - 7 |
|
Time |
30 - 60 min |
|
First, raise the temperature of bath to 60 - 70oC and add Amylase 180 and Americos Lube Pro VX. The machine should run for a minute to ensure proper mixing of chemicals. Adjust pH 6 - 7. |
|
(c) Semi-continuous application (pad-batch process)
|
Americos Amylase 180 |
3 - 5 ml/l |
|
pH |
6 - 7 |
|
Impregnate the fabric at 60 - 70°C for a pick-up of 80 - 100%. Store the fabric for 8 - 12 h; give one hot wash with soda ash, one plain hot wash and one cold rinse. |
|
Storage & Handling Precautions
Technical Service
Information covering specific application of this product is available. Americos Industries will work with customers to enhance processes and solve problems. Let us know what you need and we will assist you.