As early as the 19th century, before the birth of large-scale retail, people usually purchased all daily necessities in the grocery store near their work or residence. It is a headache how to sell the daily necessities to consumers in bulk after they are packed in wooden barrels, cloth bags, or wooden boxes and transported to the grocery store. People can only go shopping with baskets or homemade sacks.

So in 1908, in St. Paul, Minnesota, the United States, a local grocery store owner, Walter Duvina, began to look for ways to let consumers buy more things at one time in order to solve this problem and promote sales growth. Duvina believes it should be a premade bag, which is cheap, easy to use, and can withstand at least 75 pounds. After further tests, he locked the texture of the bag on the kraft paper, because it uses conifers with long wood fibers to make pulp, and during the cooking process, it is treated with caustic soda and alkali sulfide chemicals with relatively mild chemical action, so that the original strength of the wood fibers is less damaged. Therefore, the final paper is tightly connected between fibers, and the paper is tough, It can withstand enormous tension and pressure without breaking.

In this way, the first kraft paper bag for shopping was born. Its bottom is rectangular, which has a larger volume than the traditional V-shaped bottom paper bag. A rope runs through the bottom and both sides of the bag to increase its bearing capacity, and two pull rings are formed at the upper end of the bag for people to carry. Duvina named this shopping bag after himself and applied for a patent for it in 1915. At this time, the annual sales volume of such shopping bags has exceeded 100 million.

The appearance of kraft paper bags has ended the life of people relying on their hands to shop, bringing great convenience to people’s lives. At the same time, the emergence of a simple and convenient shopping tool has also driven people’s shopping boom and promoted the development of the market.

Nowadays in our daily life, kraft paper bags can be seen everywhere. The use of kraft paper bags is not limited to shopping but also plays a positive role in storage. With the progress of technology, the production of kraft paper bags has also developed from the beginning of manual output to mechanized high-speed production.

If you want to know more about kraft paper production and paper bag machine-related information, please contact Xiamen Colorwin Industrial&Trade Co., Ltd.