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, and laboratory tests revealed performance deficiencies. The findings have been communicated to the client for further decision-making.
Common Defects and Quality Issues Identified
- Core Layer Inconsistency
- Description: The core layers of the plywood in the bulk production were found to be inconsistent with the sample provided. The number of layers and the quality of the veneers did not match the approved sample.
- Cause: This issue likely arises from the use of lower-grade veneers or improper layering during production to reduce costs.
- Density Non-Compliance
- Description: The density of the plywood did not meet the required standards. The material was lighter than specified, indicating insufficient compaction during manufacturing.
- Cause: Inadequate pressure during the pressing process or the use of under-dried veneers.
- Hardness Non-Compliance
- Description: The hardness of the plywood was below the specified threshold, making it susceptible to dents and damage during use.
- Cause: Insufficient adhesive application or the use of low-density core materials.
- Bending Strength Failure
- Description: The plywood failed to meet the required bending strength, which is critical for its structural applications.
- Cause: Poor-quality core materials or inadequate adhesive bonding between layers.
- Glue Bond Strength Failure
- Description: The adhesive bonding between the layers was weak, leading to delamination under stress.
- Cause: Use of low-quality adhesive or improper curing conditions during production.
- Surface Phenolic Film Defects
- Description: The film-faced surface exhibited bubbles, wrinkles, and uneven coating.
- Cause: Improper application of the Phenolic film or contamination during the coating process.
- Anti-Slip Wiremesh Issues
- Description: The wiremesh embedded in the plywood was unevenly distributed, and in some areas, it was not securely bonded to the surface.
- Cause: Poor alignment during the lamination process or insufficient adhesive application.
- Moisture Content Non-Compliance
- Description: The moisture content of the plywood exceeded the acceptable range, which could lead to warping or mold growth.
- Cause: Inadequate drying of the veneers or improper storage conditions.
Inspection Items and Results
- Visual Inspection
- Findings: Surface defects such as bubbles, Burn MARKS,wrinkles, and uneven wiremesh distribution were observed.
- Result: Failed to meet aesthetic and functional standards.
- Density Test
- Findings: The average density was 10% lower than the specified value.
- Result: Non-compliant.
- Hardness Test
- Findings: The hardness measured was below the required threshold.
- Result: Non-compliant.
- Bending Strength Test
- Findings: The plywood exhibited significant deflection under load, failing to meet the required bending strength.
- Result: Non-compliant.
- Glue Bond Strength Test
- Findings: Delamination occurred at the glue lines under stress.
- Result: Non-compliant.
- Moisture Content Test
- Findings: The moisture content was 15%, exceeding the acceptable limit of 12%.
- Result: Non-compliant.
- Anti-Slip Performance Test
- Findings: The wiremesh did not provide consistent anti-slip properties due to uneven distribution.
- Result: Partially compliant.
Corrective Actions and Recommendations
- Core Layer Consistency: Ensure that the core layers match the approved sample in terms of both quantity and quality. Use high-grade veneers and maintain proper layering during production.
- Density Improvement: Adjust the pressing process to ensure adequate compaction and use properly dried veneers.
- Hardness Enhancement: Increase adhesive application and use higher-density core materials.
- Bending Strength Improvement: Use high-quality core materials and ensure proper adhesive bonding between layers.
- Glue Bond Strength Improvement: Use high-quality adhesive and ensure proper curing conditions.
- Surface Film Quality: Improve the film application process to eliminate bubbles and wrinkles.
- Wiremesh Alignment: Ensure even distribution and secure bonding of the wiremesh during lamination.
- Moisture Control: Implement proper drying and storage procedures to maintain acceptable moisture levels.
Conclusion
The inspection revealed significant quality issues in the Anti-Slip Wiremesh Hexa Film Faced Plywood, including core layer inconsistency, density non-compliance, hardness failure, and glue bond strength deficiencies. These issues must be addressed to meet the required standards and ensure customer satisfaction. The findings have been communicated to the client, and corrective actions are recommended to improve the product quality.
Prepared by: QC Team
Date: March 2, 2025
