Quality Inspection Report for Anti-Slip Wiremesh Hexa Film Faced Plywood
Date of Inspection: March 2, 2025
Location of Inspection: Linyi Plywood Factory, Shandong Province, China
Inspected by: QC Team on behalf of Japanese Importer
Product: Anti-Slip Wiremesh Hexa Film Faced Plywood
Introduction
This report outlines the findings of the quality inspection conducted on the Anti-Slip Wiremesh Hexa Film Faced Plywood at the Linyi plywood factory. The inspection was carried out to ensure that the product meets the required standards and specifications as agreed upon with the Japanese importer. During the inspection, several quality issues were identified, including discrepancies between the sample and the bulk production, as well as performance failures during laboratory testing.
Common Defects and Quality Issues Identified
- Core Layer Quality Discrepancy
- Issue: The core layers of the plywood in bulk production were inconsistent with the sample provided. The core layers were found to be of inferior quality, with uneven thickness and poor bonding.
- Cause: Use of lower-grade wood veneers or improper layering during production.
- Density and Hardness Below Standard
- Issue: The density and hardness of the plywood did not meet the required specifications.
- Cause: Insufficient compression during the pressing process or the use of low-density wood materials.
- Inadequate Bending Strength
- Issue: The plywood failed to meet the required bending strength standards during laboratory testing.
- Cause: Poor-quality core materials or insufficient adhesive application.
- Bonding Strength Failure
- Issue: The glue bond strength between the layers was below the required standard, leading to delamination risks.
- Cause: Inadequate adhesive quality or improper curing during production.
- Film Face Quality Issues
- Issue: The film face used in production was of local origin, unlike the world-brand film face provided in the sample. This resulted in visible defects such as:
- Burn Marks (Carbonization): Dark spots or patches caused by overheating during the pressing process.
- Blisters: Air bubbles trapped between the film and the plywood surface due to improper lamination.
- Scratches and Scuffs: Surface imperfections caused by mishandling during production or storage.
- Uneven Coating: Inconsistent application of the film, leading to areas with poor adhesion.
- Cause: Use of inferior-quality film paper and lack of proper quality control during lamination.
- Anti-Slip Wiremesh Issues
- Issue: The wiremesh embedded in the plywood was unevenly distributed, affecting the anti-slip performance.
- Cause: Improper placement or fixation of the wiremesh during production.
Inspection Items and Results
- Visual Inspection
- Result: Visible defects such as burn marks, blisters, scratches, and uneven film coating were observed on the surface of the plywood.
- Density Test
- Result: The density of the plywood was below the specified standard, averaging 10% lower than the sample.
- Hardness Test
- Result: The hardness of the plywood failed to meet the required level, indicating insufficient compression during manufacturing.
- Bending Strength Test
- Result: The plywood exhibited poor resistance to bending, with a 15% lower strength compared to the sample.
- Bonding Strength Test
- Result: The glue bond strength was inadequate, with delamination observed under stress testing.
- Film Face Adhesion Test
- Result: The film face showed poor adhesion in several areas, leading to peeling and blistering.
Conclusion and Recommendations
The inspection revealed significant quality issues in the bulk production of the Anti-Slip Wiremesh Hexa Film Faced Plywood. The core layer quality, density, hardness, bending strength, and bonding strength all failed to meet the required standards. Additionally, the use of local film face instead of the specified world-brand film resulted in surface defects such as burn marks, blisters, and scratches.
Recommendations:
- The supplier should immediately address the core layer quality and ensure consistent use of high-grade wood veneers.
- The pressing process should be optimized to achieve the required density and hardness.
- The adhesive application and curing process must be improved to enhance bonding strength.
- The specified world-brand film face should be used to avoid surface defects.
- Regular quality control checks should be implemented during production to prevent recurring issues.
The findings have been communicated to the Japanese importer for further action. The supplier has been requested to provide a detailed corrective action plan to resolve the identified issues before proceeding with further production.
Prepared by:
QC Team
On behalf of [Your Company Name]
March 2, 2025
