How-to Guide to Prevent and Manage Label Shrinkage on Aerosol Products

What Is Label Shrinkage in Aerosol Packaging?

Label shrinkage occurs when the adhesive label on an aerosol can contracts, wrinkles, or detaches from the surface. This issue affects the product’s visual appeal, branding, and compliance with labeling regulations, potentially leading to decreased consumer trust.

What Causes Label Shrinkage?

Label shrinkage is typically caused by:

• Temperature Variations: Exposure to extreme heat or cold during storage or transportation causes adhesives and labels to contract.
• Incompatible Adhesives: Poor adhesive selection leads to inadequate bonding with the can surface.
• Moisture Exposure: High humidity weakens adhesive properties, increasing the likelihood of shrinkage.
• Surface Contamination: Dirt, oil, or residue on the can surface prevents proper label adhesion.
• Label Material Quality: Low-quality labels are more prone to shrinking under stress or environmental conditions.

Why Is Preventing Label Shrinkage Important?

Label shrinkage can result in several problems:

• Non-compliance with aerosol industry standards for labeling.
• Loss of important product information, such as usage instructions or safety warnings.
• Negative impact on brand perception due to poor presentation.
• Increased costs due to label reapplication or product recalls.

Steps to Prevent and Address Label Shrinkage

Step 1: Choose High-Quality Labels and Adhesives

Select labels made from durable materials that can withstand temperature fluctuations and humidity. Use adhesives designed for metal surfaces and aerosol applications.

Step 2: Prepare the Can Surface

Ensure that aerosol cans are free of contaminants such as oil, dust, or moisture before label application. Use cleaning processes like alcohol wiping or surface priming to improve adhesion.

Step 3: Optimize Application Conditions

Apply labels in a controlled environment with stable temperature and humidity levels. Ensure that labeling machines are calibrated for consistent application pressure and alignment.

Step 4: Conduct Environmental Testing

Perform tests to evaluate label performance under simulated storage and transportation conditions. Monitor for signs of shrinkage or detachment, and adjust materials or processes as needed.

Step 5: Use Protective Coatings

Apply a clear protective coating over the label to shield it from moisture and abrasions. This adds an extra layer of durability, especially for products exposed to harsh environments.

Step 6: Monitor Storage and Transportation

Store and transport aerosol products in temperature- and humidity-controlled environments. Avoid prolonged exposure to extreme conditions that may weaken labels.

Step 7: Train Personnel

Educate production staff on best practices for label application and handling. Proper training minimizes errors during the labeling process.

Preventive Measures for Long-Term Label Durability

To ensure labels remain intact throughout the product lifecycle:

• Collaborate with Suppliers: Work with label and adhesive manufacturers to select materials tailored to your product’s needs.
• Implement Quality Checks: Inspect labels at various production stages to identify potential issues early.
• Invest in Advanced Equipment: Use modern labeling machines that offer precise application and real-time monitoring.

Benefits of Addressing Label Shrinkage

Preventing and resolving label shrinkage issues offers several advantages:

• Enhanced product presentation and brand image.
• Increased compliance with labeling regulations.
• Reduced production waste and costs.
• Improved consumer trust and satisfaction.

Conclusion

Addressing label shrinkage on aerosol cans requires careful material selection, optimized application processes, and rigorous quality control. By implementing these strategies, manufacturers can deliver visually appealing and compliant products that maintain brand integrity and consumer trust.