DENIE-SEMI 299-3 Leather Rebating Protease

Specifications

BENEFITS                        * Ready to use product.

                                          * Enhances the performance of protease rebating products.

                                          * Reduces wrinkles, improves softness and increases surface area.

                                          * Improves uptake of tanning agents. 

INTRODUCTION

DENIE-SEMI 299-3 is a protease enzyme used as an enzymatic rebating agent. On poorly bated pelts it reduces wrinkles and increases area yield. Its performance can be enhanced by the use of alpha-amylase enzyme (available from DENYKEM Limited). 

TEMPERATURE and pH PROFILES

The performance of enzymatic leather processing products depends upon process conditions such as temperature, pH, and time, nature of the substrate and enzyme concentration.

The nature of DENIE-SEMI 299-3 means that it is effective in the temperature range used in the rebating process. Its optimum temperature for activity is approximately 45°C.

DENIE-SEMI 299-3 is effective over a wide pH range (5.0 – 9.5) with optimum activity at pH 6.5 – 8.0.

DIRECTIONS FOR USE

DENIE-SEMI 299-3 - typical dosage at 0.15-0.5% on weight of hide. The preparation should be added at pH 5.0 – 5.5 during neutralisation and 60 - 120 minutes before the start of re-tannage.

If used specifically to obtain important area-yield gain, a dosage equivalent to 0.15% – 0.30% on weight of hide should be tried. When using such a high dosage it is even more important to do small scale trials.

Variations in hide and local conditions can affect the performance of leather processing chemicals. DENYKEM recommend that small scale tests are carried out under local conditions before using products in full scale production. This will avoid any overdosing and any damage that may result from it. This is especially important where poor quality or badly preserved hides are being processed.

TECHNICAL DATA (typical)

Appearance:            Powder Granular. (Note: Colour may vary. It is not an indication of product strength.)

Active constituent:  Protease.

Activity:                     1200 LVU/g

Storage:                   Storage temperature should be controlled between 5° and 25°C. Keep in sealed containers and                                  avoid exposure to moisture and high humidity.

Shelf life:                 12 months minimum under correct storage conditions.

                                 If there is an extended storage period, higher temperature or high moisture levels, dosage                                  requirements may need to be increased.

TECHNICAL SERVICE

The DENYKEM team of technical advisors are available to recommend the most suitable enzymes for various leather processing stages. They can be contacted at DENYKEM’s UK production and development facility.

Note: these data is only for recommendation, due the condition’s process’ desired finishing ,it may vary, Please according your own machinery and your own technology to apply this product to achieve the best performance, meanwhile, denykem strongly recommended to do trails in initial, denykem have no liable to obtain any damage of hides in any conditions.