The PolyChem Development & Marketing
TsongKai Technology


New Plastics Additive
Super Saving TK Series
improve the performance of
Injection, Extrusion, Blow Film/Mold


Customer Testimonials and Field Tests/Demonstrations 




The case study outlined below includes ONLY the brief summary of its individual
test background and result; please feel free to contact your local dealer if you want
to know more about how TK Series can help your unique plastic processing.

Case# 001: PP sacks, increase throughput, extend the motor and screw life




Polypropylene Sacks

Resin Type:

PP, virgin and/or recycled



Filler Type


Customer concerns:

1. motor RPM higher than normal or motor runs hard at its unfavorable extreme
2. by using CaCo3 filler with resin, the finished product (sacks) may be more fragile or easily broken

Tests Brief:

Test 1: 50 kgs of PP + 3 kgs of CaCo3 + 40 grams of TK-1
Test 2: 50 kgs of PP + 3 kgs of CaCo3 + 100 grams of TK-1
Test 3: 75 kgs of PP + 6 kgs of CaCo3 + 1.5 kgs of TK-3 (masterbatch)

Tests Result:

1. Both Test 1 & Test 2 showed significantly lower motor RPM and hence quieter motor sound.
2. Test 3 showed thicker and wider PP extrusion, and produce additional 6 lanes of thread.

Major Benefits:

1. save electric power
2. increase machine service life (for both motor and screw)
3. able to use more CaCo3 as filler while it maintain its required mechanical strength
4. increase productivity or throughput.
5. smoother & glossier film


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