Kraft paper bags are non-toxic, tasteless, and non-polluting, meet national environmental protection standards, have high strength and high environmental protection, and are currently one of the most popular environmentally friendly packaging materials in the world. Kraft paper bags made of kraft paper are becoming more and more widely used. Shopping in supermarkets, shopping malls, shoe stores, clothing stores, and other places usually have kraft paper bags to facilitate customers to carry the purchased items. Kraft paper bag is an environmentally friendly packaging bag with a wide variety of types.
Kraft paper bag is a packaging container made of composite materials or pure kraft paper. It is non-toxic, tasteless, non-polluting, low-carbon, and environmentally friendly. It meets national environmental protection standards. It has high strength and high environmental protection. It is currently one of the most popular environmentally friendly packaging materials in the world. One.
Kraft paper bags are made of wood pulp paper as the base material. The colors are divided into white kraft paper and yellow kraft paper. The paper can be coated with a layer of PP material for waterproofing. The strength of the bag can be made from one to six layers according to customer requirements. , Printing and bag making are integrated. The opening and back cover methods are divided into heat sealing, paper sealing, and paste bottom.
Scope of application
Chemical raw materials, food, pharmaceutical additives, building materials, supermarket shopping, clothing, and other industries are suitable for kraft paper bag packaging.
As early as the 19th century, when the large-scale retail industry was not yet born, people usually purchased all daily items in the grocery store near their work or residence. Those daily necessities are packed in wooden barrels, cloth bags, or wooden boxes and shipped to the grocery store in bulk, but how to sell them to consumers scattered is a headache. People can only go shopping with baskets of homemade linen bags. At that time, the raw materials for papermaking were still jute fiber and old linen cloth, with low quality and scarce quantity, which could not even meet the needs of newspaper printing. Around 1844, the German Friedrich Kohler invented wood pulp papermaking, which greatly promoted the development of the paper industry and indirectly gave birth to the first commercial paper bag in history. In 1852, American botanist Francis Waller invented the first paper bag making machine, which was then promoted to France, Britain, and other European countries. Later, the birth of plywood paper bags and the advancement of paper bag stitching technology made the cotton bags used for bulk cargo transportation replaced by paper bags.
Speaking of the first kraft paper bag for shopping, it was born in 1908 in St. Paul, Minnesota, USA. A local grocery store owner Walter Divina, in order to promote sales growth, began to find ways to allow consumers to buy more things at once. Du Weiner believes that it should be a prefabricated bag that is inexpensive and easy to use and can bear at least 75 pounds. After repeated experiments, he locked the texture of this bag on kraft paper, because it uses the long coniferous wood pulp to make the pulp. During the cooking process, it is treated with milder caustic soda and soda sulfide chemicals. The original strength of the wood fiber is less damaged, so the final paper produced has tight connections between the fibers, the paper is tough, and can withstand greater tension and pressure without breaking. Four years later, 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 load-bearing capacity, and two pull loops are formed on the upper end of the paper bag for people to lift. Du Weiner named this shopping bag after his own name and applied for a patent for it in 1915. At this time, the annual sales volume for this shopping bag has exceeded 100 million.
The emergence of kraft paper bags has changed the traditional thinking that people's shopping volume can only be limited to the number of items that can be carried by their hands, and also makes consumers no longer worry about not being able to get them and reduce the shopping experience themselves. If the birth of kraft paper bags has promoted the development of the entire retail industry, it may be an exaggeration, but it at least reveals to the merchants the phenomenon that you can’t until the customer’s shopping experience becomes as comfortable, relaxed and convenient as possible Predict how many things consumers will buy. It was this point that attracted the attention of latecomers to the consumer shopping experience, and at the same time promoted the later development of supermarket shopping baskets and shopping carts.
In the following half a century, the development of kraft paper shopping bags can be described as smooth and smooth. The improvement of materials has increased their load-bearing capacity and their appearance has become more and more exquisite. Manufacturers have printed various trademarks and patterns on kraft paper. In the bag, enter the shops and shops of the streets and alleys. Until the mid-20th century, the emergence of plastic shopping bags became another major revolution in the history of shopping bags. It eclipses the once-popular kraft paper bag with the advantages of lighter, thinner, stronger, and lower manufacturing costs. Since then, plastic bags have become the first choice for daily consumption, and cowhide bags have gradually "retreated to the second line." Finally, the decayed kraft paper bags can only be used in the packaging of a small number of skincare products, clothing, books, and audiovisual products under the name of "nostalgia", "natural" and "environmental protection"
However, with the global prevalence of the "anti-plastic" wind, environmentalists have begun to turn their attention to the ancient kraft paper bags. Starting in 2006, McDonald’s China has gradually implemented a kraft paper bag with thermal insulation properties to hold take-out food in all stores, instead of using plastic food bags. This move has also received positive responses from other businesses. For example, Nike, Adidas, and other large plastic bag consumers have begun to use high-quality kraft paper bags to replace plastic shopping bags.