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Key takeaways

  • Doypack: a flexible pouch that stands upright thanks to a gusset at its base, invented by Louis Doyen.
  • Sizes: from 5 ml to 5 liters, single-use or refillable, sealed with a heat seal, cap, or zipper.
  • Products: food and agricultural products, as well as coatings, paints, and greases for the automotive and construction industries.
  • Advantages: Easy to empty, it flattens out when empty, and offers a large print area.

The doypack bags are a patented technology. Its invention is due to a businessman named Louis Doyen. Part of his name was used to derive the 'Doy' from packaging. The term was then added with the word pack or packaging. The packaging article finds its place in various sectors of activity among the food industry, the mechanics or the BTP.

How to fill the bag?

For the filling of doypack bags, it is essential to contact a professional in the sector. The company Etraves provides this service. To perform the operation, it is necessary to use a specific machine. It has two roles. On the one hand, it will fill the container and on the other hand, it will seal the package. The bags can be equipped with a cap or not. It all depends on the packaging needs of the customers.

Apart from the food industry, it can receive coatings, paints or even vehicle greases. The containers are of various volumes.
The volume of the containers can go from 5 ml to 5 liters. The choice will depend on the intended use. Some industries foresee for example the one shoot while others bet on refillable bags.

The different services of Etraves

The doypack bags are designed with flexible raw materials. They are presented with a fold at its base. They are equipped with a lateral notch to avoid any risk of tearing. They are usually closed with a seal in a vertical position. However, there are other options such as the cap. It is also possible to use the zip fastener.
Étraves performs diversified services upon simple request of the customers. The company can stamp the exterior linings. Printing is possible when customers specify a 200,000 piece fill. We can also label containers from 500 pieces. To facilitate the display in a store, we offer the eurotrou. The act consists of integrating hanging pastes. There is also the alternative of the handles to make its transport easier.

What are Doypack patented bags?

The container can be seen in countless forms. The classic models are hermetically sealed after filling. The stored products are protected for a long time. This type of bags are used in one shot, they are made for a single use.

Models with an internal display will allow users to check the level of the liquid inside. It will be enough to look through its window. The adoption of this type of bag offers some advantages. They are notably design. In addition, the waterproof seal will not be compromised. The models with closure plugs provide maximum performance. The reason is that users will be able to open and close the cap after use. The manufacturing properties are then preserved.

The advantages of a Doypack model bag

The element is easy to empty. The filling of the doypack is similarly simplified in the hands of a professional. There are still other advantages to mention after using a Doypack. It is ecological. Indeed, its storage space is much less than the traditional packaging. It also has less impact on the environment. This is due to the fact that it flattens after the content is used up. The waste is then less bulky.

It also shows a marketing profit. Its printing surface is large. It is therefore easy to disclose abundant information such as the instructions for use or the logo of the distributing brand. In the same vein, it has an aspect conferring a visual asset. It is easily noticed in stores and supermarkets. Moreover, it is customizable according to the needs of the brand.

FAQ — Doypack Bag

What is a doypack?

A doypack is a flexible, flat-bottomed pouch with a gusset at the base that allows it to stand upright when filled. It is made of single- or multi-layer plastic film and is sealed by heat sealing, a cap, or a zipper. It is named after Louis Doyen, its inventor. It is used for liquid to paste-like products, in single-use or refill sizes.

Doypack or bottle: which one should you choose?

The doypack uses less material, takes up little space when empty, and is cheaper to ship: it is suitable for refills and single-use doses. A bottle or jug is still the better choice when the user needs a rigid container, repeated dosing, or a product that will be stored for a long time after opening. The two are often used together: the original bottle, followed by a refill pouch to refill it.

Is a doypack recyclable?

A doypack is recyclable when it is made from a single material, such as polyethylene or polypropylene; in that case, it follows the plastic packaging recycling stream. Multilayer doypacks, which combine plastic and aluminum for a better barrier, are, however, difficult to recycle. The choice of structure therefore depends on the level of protection the product requires.

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