Date: 11-06-2022
Induction sealing wads are used to create an air-tight seal on the containers and preserve their contents from contamination caused due to exposure to air, moisture, microbes, or any other unwanted impurity. Removal and reapplication of the wads leave visible traces, hence it is easier to know if the product has been tampered with.
Types Of Induction Wads
The induction wads come in several shapes and sizes, and they are generally multi-layered. In general, there are two types of induction wads:
Cap Sealing Wads
1. Single-Piece Induction Wads
A single-piece induction sealing wad is secured around the jar’s mouth and then inserted into the cap. These capped jars are normally designed to work with an induction heat sealer. The threaded cap on the bottle implements the necessary pressure, to make the sealing layer cling to the jar creating a perfectly firm and strong seal.
2. Two-Piece Induction Wads
Two-piece induction sealing wads consist of two layers- upper and a lower layer of paperboard. The layer followed by the paperboard is made of wax, used to stick an aluminum foil layer to the paperboard. A polymer film is laminated to the aluminum foil at the lowermost surface.
The container or a jar is passed over an induction coil, which creates an oscillating electromagnetic field after the cap is clamped on the container. Owing to the conductive properties of aluminum, the foil begins to heat up as the induction coil gets warm.
The wax warms up and melts and is absorbed by the paperboard layer, which allows the foil to get loosened from the cap. The polymer film also heats up and melts over the container’s lip.
When the polymer cools, it forms an air-tight seal. When the induction seal is removed from the mouth of the bottle, two-piece sealing wads leave some sort of a secondary layer of the seal on the cap to prevent leakage of the product.
Capless Induction Wads
Capless induction wads are used on jars or bottles that are meant for use and throw.
Things You Should Look In Induction Wads
Induction sealing wads have a crucial role in the packaging of any product. We often fail to notice important points while choosing the right induction sealing wads for your products. While affordability and feasibility are big factors, there are many other qualities that you should not overlook for your customized needs.
1. Water resistance ability
The biggest challenge one faces with low-grade induction sealing wads is spillage and leakage. A wad is good for nothing if it can’t keep the inside content safe.
Ensure that your provider uses high-quality materials while manufacturing sealing wads. The wads should have the quality to resist water and should stay undamaged. Such induction wads will surely prevent leakage and keep the contents of the product safe inside the container during shipping.
2. Security features
Generic induction sealing wads can be easily duplicated or pirated. A high-quality induction wad should have features that prevent duplication and does not lead to tampering with your products.
Always look for induction sealing wads that have security features. These security features can range from holography, security printing, watermark, or product authentication that can track and trace functionality. Induction sealing wads with security features will also lead to an increase in your sales and growth by keeping your supply chain secured and safe from unethical intrusion.
3. Aesthetic appeal
Unattractive induction wads are a big turnoff for the customer. The seal is the last thing a consumer observes and interacts with before consuming the product. Poor-looking sealing wads can leave a bad impression on your brand, and thus decreases the opportunities for repeat purchases.
It may not seem like a big deal, but the aesthetic appeal has its own effect when it comes to packaging your product. With induction sealing wads that are eye-catching, you're boosting your brand's image and multiplying sales.
4. Non-contamination
Wads made from bad quality materials are unable to protect the product from contamination. If the contents of the product are not safe to consume, then your money and time will definitely go down the drain.
It is important to make sure that the induction wads you use for your products prevent any kind of contamination or oxidation. A superior sealing wad acts as a protective barrier against any form of contaminants, pollutants, or elements present outside the packaging. This helps maintain the quality of the product and your brand in the market and ensures high customer satisfaction and also retains them for good.
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