Zip bags – use, design and labeling
Table of Contents
For both food companies in snacks, food and beverages and companies in cosmetics, health and hygiene, ziplock bags have increased in popularity in recent years. And we understand why.
A zip bag protects the contents from damage and environmental impact while meeting EU requirements for plastic materials that come into contact with food.
With all their advantages, ziplock bags offer a flexible and reliable packaging solution that more and more companies are choosing to promote their products.
What are zip bags?
Zip bags are flexible, resealable bags used to protect and store various types of products. The built-in zip feature allows the package to be opened and closed multiple times, which helps preserve the quality of the contents over time.
In the food industry, this type of packaging is preferable, as the requirements for both function, durability and user-friendliness are high.
All of our bag materials are approved for food use, making them safe to use in this type of application.
Advantages of zip bags
Some advantages of ziplock bags are that they are:
- Easy to close and reclose.
- Lightweight compared to regular rigid packaging.
- Durable to ship and store due to their size.
- Cost-effective.
Different types of zip bags
Logimark offers zip bags in several different sizes, materials and designs, and we always adapt the bag to both the product and the area of use.
The packaging is built up of multiple layers with different barrier properties, making it possible to combine protection and design.
Our zip bags are available with three different bottoms:
- 3-side seal – flat bag without bottom.
- Doypack – rounded bottom that allows the bag to stand up.
- K-seal – stable bottom with extra volume, suitable for heavier contents.
The choice of bottom depends on the characteristics of the product and how much the bag will be filled with. Some bottoms create more space and are better suited to different types of contents.
Small and large ziplock bags – what's the difference?
The difference between small and large zip bags is mainly about area of use, volume and function.
Smaller bags are often used for portion packaging. Larger bags are adapted for products that require more space, such as several kilos.
The choice is also influenced by factors such as handling, transportation and how the product will be presented in store.
Common uses
Our ziplock bags are popular in a variety of food industries, including snacks, powders, coffee, pet food and other products where resealability and protection are essential.
Design and function – what influences the choice?
The choice of zip bag is governed by the function it will fulfill:
Material and barrier: Different material combinations provide protection against, for example, moisture, oxygen and light, which is crucial for the product's durability.
Opening function
- Standard zip – most common.
- Velcro zip – wider solution, suitable for powder, for example.
- Without zip – instead closed with welding.
Features such as tear notch, euro hole for hanging and choice of corners affect both user experience and in-store exposure.
The choice of zip function also affects how well the contents are protected and how easy the bag is to use. For powder products, a velcro zip is often a better option, as it reduces the risk of the contents getting caught in a regular zip and improves the user experience.
Printing and branding on ziplock bags
Packaging is an important part of a brand. Digital printing creates great opportunities to create a design that reflects the product's identity.
Digital printing means high flexibility, short lead times and the ability to update designs without additional costs for printing tools.
Logos, color choices, typography and graphic elements can be combined to create a clear visual profile. Information such as barcodes and QR codes can also be integrated to strengthen communication with the end customer.
Labeling zip bags
Labeling is a central part of packaging, especially in food where clear and accurate information is crucial.
Commonly used labels include best-before dates, batch numbers, and product information.
On our zip bags, the marking can be applied using different techniques, such as inkjet marking, laser or labels, depending on the material and production flow.
Solutions from Logimark
Logimark offers flexible and customizable ziplock bags that meet different needs in the food industry. Our solutions cover everything from design and material selection to printing, labeling and function, with a focus on both product protection and brand image.
Contact us today, and let us help you take your product to the next level with the help of our ziplock bags!
Frequently asked questions about ziplock bags
The most common is to have a bag sealer, either in your production line or to use a separate bag sealer after filling.
It depends on how it is handled and stored. However, from the time the bag is delivered, it has a guaranteed lifespan of 1 year, but can last significantly longer without a guarantee.
PE – Polyethylene (plastic)
PP – Polypropylene (plastic)
PET – Polyester (thermoplastic and synthetic fiber)
Kraft paper (white or brown)
It depends on what the bag is to be filled with, which bottom you choose and also how well packed the bag is to be.
That you should have a metallized inside and a valve that releases gas.
Absolutely, we can offer bags in monomaterial, that is, the same material on all layers.
