Years after the first one was born with a brown paper shopping bag. It was a rectangular bottom brown paper bag making factory, than the traditional V-bottom paper bags have a greater amount of volume. A rope through the bottom and sides to increase its load-bearing capacity, and at the upper end of the formation of two paper bags easier for people to lift the pull ring. Du Weina their own name for this kind of shopping bags named, and in 1915 applied for a patent for. At this point, annual sales of this shopping bag has more than 100 one million. Film technology was born in the 1950s kraft paper bags, first used by the US Army. . Coating and drying time needed high voltage is applied, so food paper bags customized, high power consumption, low efficiency, high risk factor. With the voices of green growing, in May 1996 car seat brown paper bag, aqueous coating began to get people's attention, in order to meet environmental requirements, timely developed a SFl020 automatic water laminating machines, and soon the original direct copy, print. The successful development of the domestic water laminating machines, the history of film technology opened a new chapter in the development of an end to the aqueous laminating machine totally dependent on imports of history. For frozen food packaging, the use of high strength materials is also considered as a key package, this material must be able to withstand low thermal expansion and contraction during freezing and melting temperature to prevent deformation, distortion, fight wrinkles and excessive moisture can not loaded situation of food. From these points of view, the primary color kraft paper even more applicable than SBS. Capacity increase, paper, ink molecules attract diffusion. Penetrate into the printed paper, ink layer to thereby produce a better affinity. Produce solidification phenomena. Cohesion properties of thermosetting polymer resin binder produced, so that the plastic film and printed paper forming a strong bond, an appropriate compound of temperature, pressure, time composite coating amount of the binder is a glue paper-plastic product quality protection. Kraft paper bag production factory, paper bags, packaging provided by Xiong Yu Xin Yu Xin plastic packaging plant. Xiong Yu Xin plastic packaging plant (www.xinyusl.com) (www.xinyusl.com) strong, credible, Baoding in Hebei composite packaging products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yu Xin into the brilliant packaging and you work for a better future!