Quality Inspection Of Corrugated Plastic
We have over ten quality inspection processes and professional quality inspectors to ensure that each batch of goods is problem-free before being shipped, allowing you to receive and use them with confidence.
01
Raw Material Inspection
- Inspection of raw material batches regarding their source, batch number, and date of production.
- Melt Flow Rate (MFR) Testing: Inspection of the material’s melt flow to meet the standard.
- Color masterbatch inspection with ΔE ≤ 1.5.
- Inspection of moisture content/;Determining the moisture content of batches and ensuring that it does not exceed 0.05%.
02
In-process Inspection
Extrusion process
- Online thickness measurement: Make sure the thickness tolerance being ±0.05 mm.
- Width detection online: Maintaining the width tolerance of ±0.5 mm.
- Visual surface inspection online: Monitor black spots, bubbles, and water ripples on the surface of the board.
Corona treatment process
- Dyne value detection in line: Make sure the value of Dyne is ≥ 50 Dyne.
- Corona treatment uniformity test: To avoid dead corners.
Cutting process
- Size tolerance check: The size tolerance is maintained at ±1 mm.
- Smoothness of edge detection: Without burrs and warping.
03
Final Inspection
Physical performance test
- Tensile strength test: To ensure the tensile strength achieves 25-30 MPa.
- Bending strength test: The bending strength needs to reach 30-35 MPa.
- Impact resistance test: To prove its resistance to the shock force.
Color Detection
Color difference meter test: To ensure that ΔE ≤ 2.
Printing adaptability test
- Dyne value test: The Dyne value should be confirmed that it is ≥ 50.
- 3M tape adhesion test: To confirm that ink detachment is ≤ 5%.
- Anti-friction test: To prove that the printed pattern will not wear out.
Dimensional inspection
- Length and width: To control the length and width tolerance at ± 1mm.
- Diagonal detection: To confirm the deviation is no more than 2mm.
- Thickness test: To confirm that it is within the range of 0.05mm.
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