The History of Kraft Paper

Kraft paper is one of the most widely used materials in packaging and shipping. Known for its strength and durability, kraft paper is commonly used as packing paper, protective wrapping, and void fill inside shipping boxes.

Today, kraft paper plays an important role in the global packaging industry. Shipping companies, warehouses, retailers, and packing professionals use kraft paper to protect fragile items during transportation. Because it is strong, flexible, and recyclable, kraft paper has become one of the most widely used packaging materials in modern shipping.

The word “kraft” comes from the German word meaning “strength.” The name reflects the most important quality of this paper—its ability to resist tearing and withstand stress during handling and transportation.

Early Shipping Before Cardboard Boxes

Before modern cardboard shipping boxes became widely used, many items were packaged using heavy paper and twine.

During the late nineteenth and early twentieth centuries, packages were often wrapped in strong paper and then tightly secured with string or twine. The paper was folded carefully around the object, and the string was wrapped several times around the parcel to hold the wrapping in place.

This method was widely used in early postal systems and freight shipping. In many post offices, customers could even find balls of twine hanging from dispensers so they could tie their packages before mailing them.

While paper-and-twine packaging worked well for many items, it provided limited protection for fragile goods. As shipping volumes increased, the need for stronger packaging materials led to new innovations in paper manufacturing.

The Invention of the Kraft Process

Kraft paper was developed through a chemical process known as the kraft pulping process.

This process was invented in 1879 by Swedish engineer Carl F. Dahl. Dahl discovered a method for converting wood into strong paper pulp using a mixture of chemicals that break down lignin, the natural substance that binds wood fibers together.

By removing much of the lignin while preserving the long cellulose fibers, the kraft process produces paper that is much stronger than many other types of paper.

The kraft process quickly became popular in the paper industry because it allowed manufacturers to produce large quantities of strong paper suitable for packaging and industrial applications.

Why Kraft Paper Is Brown

One of the most recognizable features of kraft paper is its natural brown color.

This color comes from the natural wood fibers used during the kraft pulping process. Unlike many other types of paper, kraft paper is often minimally processed or left unbleached in order to maintain its strength.

Bleaching paper removes some natural components from the fibers, which can weaken the final material. Because packaging applications require durability and tear resistance, many manufacturers leave kraft paper in its natural brown state.

In addition to the familiar brown version, kraft paper can also be produced in other forms, including:

• white kraft paper
• coated kraft paper
• colored kraft paper

However, the natural brown version remains the most common for shipping and packaging.

How Kraft Paper Is Made

The production of kraft paper begins with wood chips from trees such as pine, spruce, or fir.

These wood chips are placed inside large pressure vessels called digesters, where they are cooked using a mixture of chemicals, typically sodium hydroxide and sodium sulfide. This chemical process breaks down lignin while preserving the strong cellulose fibers.

Once the pulp is formed, it is washed, screened, and processed into sheets of paper. These sheets are then pressed and dried to produce the finished kraft paper.

Because the wood fibers remain long and strong during this process, kraft paper has excellent tear resistance and durability compared with many other paper products.

Why Kraft Paper Is Used in Shipping

Kraft paper became widely used in shipping because it offers several practical advantages.

These include:

• strong tear resistance
• flexibility and cushioning
• lightweight material
• recyclable and biodegradable
• inexpensive to produce

When used as packing material, kraft paper can be crumpled or layered around fragile items. This creates cushioning that helps absorb impacts during transportation.

Kraft paper is also commonly used as void fill, meaning it fills empty spaces inside shipping boxes to prevent items from shifting during transit.

Kraft Paper as Packing Material

In modern shipping, kraft paper is frequently used to protect items inside cardboard boxes.

Common uses include:

• wrapping fragile items
• cushioning glass or ceramics
• filling empty space inside boxes
• protecting surfaces from scratches
• separating multiple items inside a package

Because it is flexible and easy to shape, kraft paper can be used to pack items of many different sizes and shapes.

Environmental Benefits of Kraft Paper

Kraft paper is often considered one of the more environmentally friendly packaging materials.

Because it is produced from wood pulp and contains fewer synthetic components than many plastic packing materials, kraft paper can usually be recycled through standard paper recycling systems.

Many kraft paper products are also made using recycled fibers, which helps reduce the demand for new raw materials.

In addition, kraft paper naturally biodegrades over time, making it a more sustainable option compared with certain plastic packaging materials.

For these reasons, many businesses have increased their use of kraft paper as part of environmentally responsible packaging practices.

Kraft Paper in Modern Shipping

Today, kraft paper remains one of the most widely used protective packaging materials in the shipping industry.

Warehouses, fulfillment centers, and shipping stores use kraft paper to protect products during transportation. It is often combined with other materials such as bubble wrap, packing peanuts, and foam inserts to provide additional protection.

Because it is lightweight and flexible, kraft paper is an effective solution for protecting many different types of shipments.

Kraft Paper at 1Up Pack & Ship

At 1Up Pack & Ship, kraft paper is commonly used as part of our professional packing process.

Kraft paper helps cushion fragile items and fill empty spaces inside shipping boxes to prevent movement during transportation. When combined with other protective materials such as bubble wrap and packing peanuts, kraft paper helps ensure that shipments arrive safely at their destination.

As part of our Community Packing Material Recycling Program, we also encourage the reuse of clean packing materials whenever possible to reduce waste and support environmentally responsible shipping practices