Milled cloth packing bag

There are three types of cloth packaging bags, random and intergauge, industrial products to the same gauge as the main components. Propylene also includes copolymers of propylene and a small amount of ethylene. Generally translucent colorless solid, odorless non-toxic. Melting point up to 1677℃, steam disinfection is a prominent advantage of heat resistance. Density 0.90g/cm3, lightweight general purpose plastic. Corrosion resistance, tensile strength of 30MPa, polyethylene has good strength, rigidity and transparency. The disadvantages are poor low temperature impact resistance and easy aging, but can be overcome by modification and addition of antioxidants.

But polyethylene is very sensitive to environmental stresses (chemical and mechanical) and has poor heat resistance. The properties of polyethylene vary from variety to variety, mainly depending on the molecular structure and density. Products with different densities (0.91 ~ 0.96g/cm3) can be obtained by different production methods. Polyethylene can be processed in the same way as common thermoplastics (see plastics processing). Mainly used in the manufacture of film, container, pipe, single wire, wire and cable, daily necessities, and can be used as TV, radar and other high frequency insulation materials. With the development of petrochemical, the production of polyethylene has developed rapidly, accounting for about 1/4 of the total plastic production. In 1983, the world's total production capacity of polyethylene was 2.65 Mt for 24 years, and the capacity of plant under construction was 3.16Mt.

As is known to all, the morphological composition of the cloth packing bag is a morphological element, or morphological element, which is a variety of forms composed of certain methods and rules. The form consists of points, lines, surfaces and bodies. The forms of cloth packaging bags mainly include: cylinder, rectangle, cone and various forms and the combination of related forms, as well as the novelty of different cutting forms play a very important role in the visual guidance of consumers, strange visual forms can leave a deep impression on consumers. Packaging designers must be familiar with the characteristics of the form element itself and its performance, and use it as a material to express the beauty of form.