Generic Flat Bags

Create your custom product!


Neutral flat bags without printing are perfect if you don't have a big budget and prefer to test the ground with your new product first. You can customize them with adhesive labels to be applied directly on the neutral flat bags without printing. In this way you will be able to contain your budget but still have a great yield, never neglecting quality.


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Neutral flat bags without printing: low cost but maximum yield

Are you a company that produces jewelry, biscuits or dried fruit and you need packaging that represents your company and at the same time contains costs? Neutral flat bags without printing are the ideal solution for you. They are equipped with a resealable zip essential for those products that involve repeated consumption. This will allow the customer to easily open and close the neutral flat bags without printing.

All of our solutions are equipped with a default invitation to open.

The minimum order for each neutral flat bag is 500 pieces.




Neutral flat bags without printing are available in 3 different materials. The choice of material should not be taken lightly. The material can completely change the perception of the product and the brand.


Recyclable Transparent – PE / PE EVOH PE

If you are looking for an eco-friendly solution, choose our recyclable transparent material with a semi-matte finish that allows you to create a window to make the product visible inside.

This material is ideal if your brand shares the value of sustainability. This material is 100% recyclable and eco-friendly as it is made of transparent monofilm with a semi-opaque finishing. The semi-matte texture makes the colour more natural. It has also an EVOH barrier.

In addition, its transparent finish is ideal if you want to make visible the contents inside the custom pet food flat bag. Using selective opaque white it is possible to create transparent windows. The selective opaque white is a very opaque ink that is used as a base for other printed colors on a transparent material. The areas that will be left transparent must be free of selective opaque white. The selective opaque white must be present only on those areas of the flexible flat bag that must be opaque and conceal the content inside.


Recyclable – PE / PE EVOH PE BL

For a green choice, opt for recyclable material, a 100% recyclable monofilm with a semi-matte finish and with an EVOH barrier.

Be careful though. If you are looking for a material that allows you to glimpse the contents of the heat-sealable bag this is not the right choice. Instead, opt for the Transparent Recyclable material.


Metallic – PET / ALU / PE

The shiny silver metallic material guarantees maximum protection and gives your product the "WOW" effect. It's great if you want to achieve a reflective, sparkly effect that will make your custom flat bags stand out on the shelf. You can choose to make the entire surface of the heat-sealable bag metallized or to select only some details thanks to the use of selective opaque white.

Sizes and finishing


Good graphics and the right material are not sufficient for creating a flat bag with a winning appeal. You need to choose the right size. On Oppaca you have the opportunity to choose between 2 different sizes suitable for each of your products. If, on the other hand, you want to opt for a customized solution in terms of size, material and printing, discover our custom flat bag bags!

Remember that if your need is to contain the costs to produce your flat bags, opt for neutral flat bags without printing.

You can always personalize them using adhesive labels, even with finishes to further embellish your packaging. Look at our page dedicated to personalized adhesive labels.

Oppaca tips

All food flat bags for biscuits, dried fruit and flours are not only certified for direct food contact but also have some fundamental characteristics for maintaining the properties of the product.


UV protection

Materials such as aluminium guarantee high protection from light and heat.



The EVOH barrier materials guarantee a high barrier to oxygen, humidity and aroma.


Repeated consumption

Thanks to the resealable zip it is possible to allow the consumer to consume the product repeatedly.



Choose materials such as recyclable plastic or paper for a sustainable choice.


Heat sealable

The bags are heat-sealable with a manual or automatic welding machine that welds at a temperature between 160 ° and 180 °.