The origin and current use of kraft paper bag

Around 1844, German Friedrich Kohler invented wood pulp papermaking, which greatly promoted the development of 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 popularized to France, Britain and other European countries. Later, with the birth of plywood paper bags and the progress of paper bag sewing technology, cotton bags used to be used for bulk cargo transportation were replaced by paper bags. However, kraft paper bag is based on all wood pulp paper. The color is divided into white kraft paper and yellow kraft paper. PP material is used to spray a layer of film to prevent water. The strength of the bag can be made into one to six layers according to the requirements of customers. Printing and bag making are integrated. The opening and back sealing methods are divided into heat sealing, paper sealing and lake bottom. "Kraft paper bag" is a kind of bag made of composite materials. Due to the non-toxic, tasteless and environment-friendly properties of kraft paper bags, they are environmentally friendly and can be used for a long time, making a certain contribution to the national resources and environmental protection

Because of the appearance of kraft paper composite bags, many consumers are no longer worried about shopping because they can't take the things they buy. It is precisely because of this that people pay more attention to consumers' shopping experience and promote the development of shopping carts and shopping baskets in supermarkets. In the name of "environmental protection", "nature" and "nostalgia", kraft paper bags are used in a relatively small number of books, clothing and audio-visual products. The successful use of plastic bags to people's attention to the ancient kraft paper bags. Since 2006, McDonald's in China has gradually introduced kraft paper bags to all its stores to hold out food instead of plastic bags. This move has received positive response from other businesses, and they have begun to use kraft paper composite bags to replace plastic shopping bags. Greatly improve the protection of the environment, kraft paper bag to accompany in our daily life, help us share the burden of life.