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# 018: PP sacks (woven bags) manufacturer to reduce material cost by using more regrind or recycled resin




Polypropylene Sacks (PP RAFFIA)

Resin Type:

PP, virgin and/or regrind, recycled



Filler Type

2% CaCO3

Customer concerns:

1. cost of the expensive mixture
2. customer was unable to use more than 10% scraped and had accumulated big stock of it.

Tests Brief:

Control Cell A: 90 kgs of PP + 2 kgs of CaCo3 + 10 kg regrind (scrap)
Control Cell B: 70 kgs of PP + 2 kgs of CaCo3 + 30 kg regrind (scrap)
Test Cell: 70 kgs of PP + 2 kgs of CaCo3 + 30 kg regrind (scrap) + 200 grams of TK-1

Tests Result:

1. Raffia got better quality with 30% recycled/scraped than before when only 10% possible.
2. Production process kept constant with no interruption problems.
3. Film brighter and softer
4. There was reduction in electricity consumed Bill became lower.
5. may be able to use more CaCo3 as filler, more tests with TK suggested

Major Benefits:

1. save electric power
2. extend machine service life (for both motor and screw)3. 
3. increase productivity or throughput.
4. better cosmetic quality performance


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