The production line of the three layer film blowing machine adopts new high -efficiency and low energy consumption extrusion unit, IBC film bubble internal cold system, ± 360 ° horizontal rotation system, automatic photoelectric automatic correction device, fully automatic volume and thin film tension control, computer computer control, computer computer Advanced technologies such as screen automatic control system.
And non -woven fabric is also a polymer short -fiber chemical material. It has a high tensile strength and extension through acupuncture or thermal adhesion. After combining it with plastic film The strength and anti -puncture ability, and due to the rough surface of the non -woven fabric, increased the friction coefficient of the contact surface, which is conducive to the stability of the composite geomorphic film and the protective layer.
At the same time, they have a good corrosion resistance to bacteria and chemical effects, and they are not afraid of the erosion of acid, alkali, and salt. Compared with similar equipment, it has the advantages of higher output, good product plasticization, low energy consumption, and simple operation. It has completely solved the problem of thin film ruffles and the size of the scrolls, which makes the quality of the product a new level.
The thin film produced has high transparency, puncture resistance, high toughness, good low temperature, good eagerness, good complexity, and anti -curling. This membrane is widely used in severity packaging due to its good obstruction, preservation, hygroscopic, anti -frost, oxygen, oil resistance, and can be widely used.
Such as a variety of fresh fruits, meat foods, pickles, fresh milk, liquid drinks, pharmaceutical products, etc. Its main mechanism is to leak the water leakage channel of the impervious partition of the plastic film, and tolerate the hydraulic pressure and adapting the dam deformation with its large tensile strength and extension rate.
The three layer film blowing machine is mainly to improve the horizontal and longitudinal stretching strength of the membrane and improve the resistance of the anti -puncture. The three layers of the co -squeezing membrane are generally called the inner, middle and outer layers. Some are transparent, and some need to be added with color.
In the processing of film, one raw material is squeezed out to another film that has been made, or the different types of film that have been made into each other into a multi -layer thin film. This product is called a composite film.
Most of the composite materials are plastic, but they can also use paper, metal foil (usually aluminum) or fabric. The basic requirements of the composite membrane are that there must be good adhesion between layers to ensure the overall mechanical properties of the packaging.
In addition, composite membranes are mostly used for food packaging. In the processing of composite membranes, adhesives should be used. The selection and adhesion process of the solvent must meet the corresponding sanitary standards.
The co -squeezing membrane has most of the characteristics of the composite film, but there is a difference, that is, all layers of the co -squeezing membrane are squeezed out of the same time, so there will be no other non -plastic materials such as aluminum foil and paper.
The combination of its product materials is relatively small and the scope of applications is relatively small. However, because the winter co -layer and the layer are combined with hot -melt, there is no need for adhesive, so the hygiene safety of food packaging is relatively reliable
