How it’s made: Kraft paper bags

Kraft paper bags gain in popularity following the ban on single-use bags in Montreal and several other countries. As well as being eco-friendly and customizable, paper bags are durable and versatile. But how are they made and what is the design process?

A little history

Kraft paper was invented in 1879 by Carl F. Dahl, a Swedish chemist. The word “kraft” itself means “strength” in German, reflecting the material’s resistance and robustness. Since its invention, kraft paper has become an iconic material, appreciated for its durability and versatility.

Originally, these bags were mainly used to transport heavy goods such as coal, cement and grain. Over the decades, they have evolved into versatile packaging for a multitude of uses. Today, these eco-friendly bags have become a must-have for the retail sector, promotional events and corporate gifts.

Kraft paper bag compositions

Before talking about the manufacture of paper bags, we need to understand the components of this biodegradable bag. As you probably already know, it’s made from natural materials.

It is composed of long, strong wood fibers, generally obtained from virgin wood pulp or recycled pulp. They are the main constituents of tree cell walls. Woods such as spruce, pine and eucalyptus are mainly used.

The bag production process

Today, in order to improve the production process in an environmentally-friendly way, various modern technologies are used to manufacture the bags.

There are 8 important stages in the design process:

  1. Wood fibres are transformed into pulp ;
  2. Paper pulp is transformed into paper sheets ;
  3. The sheet is pressed between rollers to make it smooth ;
  4. The sheets are cut to the size of the bags ;
  5. Glue is added to seal the sides of the bag ;
  6. Add handles if desired ;
  7. We personalize bags using a variety of printing techniques ;
  8. They are subject to rigorous quality control to ensure they meet the company’s strict standards.

With this approach, we are able to produce bags faster, more accurately and more ecologically. With customized kraft paper bags, small producers can also strengthen their brand image and stand out in the competitive marketplace.

In conclusion,

Today, kraft paper bags are available in a multitude of designs and sizes. They can be customized with motifs, logos and messages to meet the specific needs of any company or occasion. Request a quote today to get your Kraft paper bags!

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Do not hesitate to contact us for a free quote, without obligation on your part. We will respond quickly and most importantly, we will take the time to understand your needs and ensure you get the best price for the best product.

Our promise: the best quality for the best price
Our promise: the best quality for the best price