Needle punch or micro-hole? Find out which technique to use in packaging perforation

Both the needle punch and the micro-hole device have the same objective: to make small perforations in the packages so that the air inside the packages finds an outlet and they become less bulky.

However, the two piercing mechanisms contain different features that we’ll introduce now to help you make the best choice.

Needle punch x micro-hole device

Small holes made in a package are necessary to prevent breakage of packages, in addition to making bales more compact, making handling easier. However, despite being intended for the same application, the needle punch and the micro-hole device employ different technologies and have different results. See the differences:

Needle punch

As the name suggests, the needle punch is composed of small pins that are arranged in a cylindrical piece with the tips outward. When passing over the needle punch assembly, the package is pierced by pins, leaving small holes open for air to escape.

Although small, the holes allow the air to escape freely; however, there is the possibility of entry of particles through open spaces that can contaminate the product. Therefore, the needle punch is not suitable for some segments, especially food, that ends up having problems when the holes are too big.

Micro-hole device

Coupled to the wrapper, this mechanism is also based on a cylindrical piece that rotates under the plastic to perforate the package. However, instead of pins, we have a product developed with applied engineering and technology.

The highlight of the micro-hole device is its efficiency with the result obtained in the perforated packages.

Due to the small dimension and its geometry, the perforations resulting from this mechanism act as a kind of valve, allowing the air to escape while restricting the entry of particles that could contaminate the product. These perforations also prevent product leakage from packaging.

Advantages of using the micro-hole device

•     Reduction of external contamination.
•     Less leakage in flour and refined packages.
•     As it has the same length as the rolls of the plastic passage, the rubberized roll allows it to be used for different sizes of roll in the same equipment.
•     Fairer burdens.
•     It prevents packages from bursting when pressed, as it allows air to escape.

Caution when indicating micro holes for packaging perforation

In the case of the micro-hole punch, because the holes in the packages are smaller, it is to remove air from the package; therefore, it is suggested to use a pressure belt to assist this process.

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