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Producing high-quality PET flakes requires precision, technology, and strict quality control. However, many manufacturers face common challenges that can directly affect the purity, color, and consistency of recycled PET flakes. For industries such as textiles, packaging, strapping, sheet-making, and thermoforming, even small defects can create big problems.
As a leading PET flakes manufacturer in Bangladesh, Key Mart Limited maintains a strict production system to avoid these issues and ensure premium-grade flakes for both local and international buyers. Below are the 10 most common issues in PET flakes production—and how to prevent them effectively.
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Contamination (PVC, Metals, Labels)
Problem: Mixed materials like PVC, aluminum caps, or labels reduce flake purity.
Solution: Use automated sorting, manual inspection, and metal detectors before washing.
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Inconsistent Flake Size
Problem: Uneven flakes affect melting and processing in textile and sheet industries.
Solution: Install precision shredders and vibration sieves for uniform sizing.
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High Moisture Content
Problem: Moisture creates bubbles and defects during melting.
Solution: Use high-efficiency dryers and monitor moisture levels at every stage.
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Poor Washing Quality
Problem: Dirt, glue, and residue remain on plastic.
Solution: Use multi-stage hot wash, friction washing, and high-pressure rinsing.
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Yellowish or Dull Color
Problem: Over-heating and poor washing create discoloration.
Solution: Maintain controlled temperatures and use clean, filtered water.
READ MORE: “Why Choose Key Mart Limited for High-Quality PET Flakes?”
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Presence of Odor
Problem: Contaminated bottles or poor washing cause bad smell.
Solution: Pre-wash sorting + hot wash + chemical deodorizing agents.
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Unsorted Bottle Grades
Problem: Mixed colors affect output quality.
Solution: Pre-sort by color: clear, light blue, green.
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Residual Glue & Caps
Problem: Glue and caps create impurities.
Solution: Use label-removal machines and high-temperature soaking.
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Overheating During Shredding
Problem: Heat causes flakes to melt or fuse together.
Solution: Maintain proper blade sharpness and cooling systems.
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Weak Quality Control System
Problem: Inconsistent testing results in poor-quality flakes.
Solution: Implement strict QC checks: moisture, IV, color, metal, and contamination testing.
How Key Mart Limited Avoids These Issues
As a trusted pet flakes company in Bangladesh, Key Mart Limited follows:
- Advanced hot & cold washing lines
- Automatic sorting and metal detection
- Uniform shredding and color grading
- Strict quality control in every batch
- Export-grade packaging standards
Our commitment to quality makes us a preferred pet flakes exporter for global buyers.
Conclusion
Avoiding these common issues ensures better efficiency, higher product quality, and increased buyer satisfaction. With the right technology and expertise, PET flakes production becomes more reliable—and Key Mart Limited continues to lead as a dependable pet flakes supplier in Bangladesh.
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Key Mart Limited
🌐 Website: www.keymartbd.com
📧 Email: keymartbd@gmail.com / info@keymartbd.com
📱 Phone: +8801760774499, +8801864935478