Shrink Film Types and Characteristics - HYF

Here are the characteristics of PVC shrink film, PETG shrink film, and PLA shrink film:

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PVC Shrink Film:

1. Clarity: PVC shrink film offers excellent clarity, providing a transparent and glossy finish that allows products to be visible.

2. Shrinkability: PVC shrink film has high shrinkability when exposed to heat, forming a tight and secure wrap around products of various shapes and sizes.

3. Flexibility: PVC shrink film is highly flexible, conforming well to irregular shapes and contours without tearing or distorting.

4. Cost-effectiveness: PVC shrink film is generally more affordable compared to other shrink film materials, making it a popular choice for a wide range of packaging applications.

5. Widely Available: PVC shrink film is readily available in various thicknesses and sizes, catering to different packaging requirements across industries.

PVC Shrink Film

PETG Shrink Film:

1. Clarity and Gloss: PETG shrink film offers excellent clarity and glossiness, providing a clear and attractive packaging solution that enhances product visibility.

2. Strength: PETG shrink film is known for its strength and durability, offering good puncture resistance and tear strength, making it suitable for packaging heavier or more delicate items.

3. Shrinkability: PETG shrink film has moderate shrinkability when exposed to heat, providing a snug and secure wrap around products without excessive distortion.

4. Heat Resistance: PETG shrink film exhibits good heat resistance during the shrinking process, maintaining its integrity without deforming or melting at typical shrink temperatures.

5. Environmental Impact: PETG shrink film is recyclable, making it a more environmentally friendly option compared to PVC shrink film.

PETG Shrink Film

PLA Shrink Film:

1. Biodegradability: PLA shrink film is biodegradable and compostable, derived from renewable resources like corn starch or sugarcane, making it an eco-friendly alternative to traditional plastics.

2. Transparency: PLA shrink film offers good transparency, allowing products to be visible even after packaging, enhancing product presentation.

3. Shrinkability: PLA shrink film has moderate shrinkability when exposed to heat, providing a secure wrap around products while maintaining product integrity.

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4. Strength: Despite being biodegradable, PLA shrink film maintains reasonable strength and durability, ensuring reliable packaging performance.

5. Environmental Sustainability: PLA shrink film aligns with sustainability goals, as it breaks down naturally over time, reducing environmental impact and promoting a circular economy.

PLA Shrink Film

Each type of shrink film offers distinct characteristics suited to different packaging needs, with considerations for clarity, strength, shrinkability, cost, and environmental impact influencing material selection.

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Shrink Wrapping 101

Shrink wrapping is the process of adding a crystal clear tamper proof layer of poly to your packaging while protecting the enclosed products from moisture and dust. Shrink wrapping is used in numerous industries including manufacturing and retail at the store level environments. 

We carry a variety of shrink wrapping equipment as well as the full line of equipment Sealer Sales offers for shrink wrapping. We work with start-up to medium sized companies and depending upon your application and production level, we have a few solutions.

Shrink wrapping a product offers:

Shrink wrap is a plastic film that you can wrap around any object.  Heat is then applied to the surface (via heat gun or shrink tunnel), which causes the plastic to shrink. As it shrinks, it conforms to the shape of your object and seals itself.

How to Choose a Shrink Wrapping Machine?

We carry a full line of shrink wrapping systems (I-Bar, L-Bar sealers, heat guns and shrink tunnels) to help you with your shrink wrapping needs.  When it comes to choosing the right machine, there's a few easy questions to answer to help us identify which machine will work best for your application.

• What are you packaging? Will this be a retail or industrial application?
• What are the dimensions of your package - length x width x height?
• What is the weight of your package?
• What is the speed you need? Think of how many packages you will need to process per day.
• What type of shrink film, PVC or Polyolefin, will be used?
• What gauge of shrink film?

The types of shrink film are Polyolefin, PVC, and Bundling Film. 

These measurements will help you determine what type and size shrink wrap machine is needed.

We carry a wide variety of machines from the starter units to more automatic systems.  Contact our office for more information: (770) 554- or [ protected]

Table-Top I-Bar Shrink Wrapping 

An I-Bar sealer is designed to first cut the width of the film to size, then the operator turns the product 90 degrees and seals it again using centerfold shrink film.  Our table top I-Bar sealers are easy to use and ideal for retail environment like book stores, pawn shops, and department stores. Once you seal your package closed using an sealer, you will need either a heat gun or shrink tunnel in order to complete the shrink wrapping process.

Table-Top L-Bar Shrink Wrapping

An L-Bar sealer is designed with two sealing sides which allow you to seal and cut centerfold shrink film in one step.  Our table top L-Bar sealers are easy to use.  The L-bar sealers are ideal for small production runs. Once you seal your package closed using an sealer, you will need either a heat gun or shrink tunnel in order to complete the shrink wrapping process.

Combo Shrink Wrapping Units

Our combo shrink wrapping units allow you to seal and shrink with one machine.  This is ideal for smaller foot print locations which cannot accommodate larger units.  Our combo units will tend to be a little slower than our other free-standing L-bar sealers.  Please note most of our larger machines will require 220v.  The Sealer Sales SS-48ST unit is a combo unit that is offered in 110v voltage for smaller facilities that do not have 220v available.  Please note that 220v for shrink tunnels is preferred as this will allow the machine to be more productive and efficient.

Free-Standing Semi-Automatic L-Bar Machines

Our free-standing L-Bar Combo machines will be the most efficient and quickest way to shrink wrap.  We recommend these machines for heavier duty applications.  Our free standing machines are equipped with a dual magnet hold down which removes operator error when correct seal and cool times are selected.  A power discharge conveyor will push the product into the shrink tunnel once sealing process is completed.

If you want to learn more, please visit our website Environmentally Friendly Shrink Film.