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Introduction

Shrink wrap labels are a versatile and popular choice in the packaging industry, widely used for their ability to conform tightly to containers of various shapes and sizes. These labels not only enhance shelf appeal but also offer excellent durability, moisture resistance, and tamper-evident features. In this blog, we’ll explore the step-by-step process of applying shrink wrap labels and delve into the considerations, benefits, and best practices for a successful labeling operation.

Why Choose Shrink Wrap Labels for Your Packaging Needs?

Shrink wrap labels provide a 360-degree canvas for branding and product information. They are especially suitable for industries such as food and beverage, cosmetics, pharmaceuticals, and household products. Their ability to snugly fit irregularly shaped containers gives brands more creative flexibility. Furthermore, shrink wrap labels can be made from materials like PETG, PVC, and PLA, which offer varied performance and sustainability benefits.

Understanding the Materials Used in Shrink Wrap Labels

Shrink wrap labels are typically made from heat-sensitive plastic films. The most common materials include:

• PETG (Polyethylene Terephthalate Glycol): Excellent clarity and shrink rate.
• PVC (Polyvinyl Chloride): Cost-effective and versatile.
• PLA (Polylactic Acid): Biodegradable and environmentally friendly.

Each material has its own advantages in terms of shrink ratio, clarity, printability, and sustainability. Selecting the right film depends on your product type, container shape, and branding goals.

Equipment and Tools Needed to Apply Shrink Wrap Labels

To effectively apply shrink wrap labels, you will need the following equipment:

• Label Applicator Machine: Applies the shrink label sleeve onto the container.
• Heat Tunnel or Heat Gun: Shrinks the label to fit tightly around the product.
• Conveyor System: Moves products through the labeler and heat tunnel.
• Cooling Station (Optional): Helps stabilize the label post-shrinkage.

Choosing the right shrink sleeve applicator and heat tunnel is crucial. Equipment should match the speed, volume, and container types of your production line.

Step-by-Step Process to Apply Shrink Wrap Labels

Step 1: Prepare Containers

Ensure all containers are clean, dry, and free from oil or debris. Proper surface preparation improves label adhesion and reduces shrink inconsistencies.

Step 2: Load Labels into Applicator

Load shrink wrap labels into the labeling machine, ensuring they are aligned correctly to avoid skewed application.

Step 3: Apply the Label Sleeves

Use a shrink sleeve applicator to slide the label onto the container. Accuracy in placement is critical for professional-looking results.

Step 4: Heat Application

Pass the labeled containers through a heat tunnel or apply heat using a heat gun. The label will shrink and conform to the shape of the container.

Step 5: Inspect and Cool

Visually inspect the labels for wrinkles, tears, or improper shrinkage. Allow containers to cool to lock the labels in place.

Table: Comparison of Shrink Wrap Label Application Methods

Best Practices for Consistent Shrink Labeling

• Use consistent container shapes and sizes.
• Store labels in a cool, dry environment.
• Test heat tunnel settings before full production.
• Conduct periodic equipment calibration.
• Use high-resolution artwork designed for distortion during shrinkage.

Adhering to these best practices ensures that shrink wrap label are applied accurately, maintaining brand integrity and packaging consistency.

Troubleshooting Common Issues with Shrink Wrap Labels

• Wrinkling: Caused by uneven heat distribution or improper container prep.
• Tearing: May result from poor label material quality or excessive heat.
• Misalignment: Caused by faulty applicator settings or improper container placement.
• Bubbling: Indicates trapped air or contamination on the container surface.

Identify the root cause and adjust heat, speed, or container prep accordingly to resolve these issues.

Shenlong Packaging: Your Shrink Wrap Labeling Partner

Shenlong Packaging has over 20 years of experience in delivering excellence in packaging and daily chemical product solutions. From color printing and packaging to blow molding, injection molding, and daily chemical product manufacturing, Shenlong offers personalized product solutions tailored to your specific needs—whether for private label or OEM.

If you’re seeking a reliable partner for shrink wrap label, Shenlong provides technical expertise, material guidance, and turnkey support across every step of your packaging journey.

Conclusion

Shrink wrap labels offer an attractive, functional, and flexible packaging option for a wide range of industries. With the right material, equipment, and application process, they can elevate your brand presence and product protection.

Looking to streamline your labeling process and improve product appeal? Contact us today to learn how Shenlong Packaging can help you implement high-quality shrink wrap labels customized to your unique needs.

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