Production process for dental scarf film made of composite material and production device thereof

Abstract

The invention discloses a production process for a thin film for a dental scarf adopting a composite material and a production device thereof. The production process is characterized by comprising thefollowing specific steps: step 1, stirring and mixing; step 2, weighing and feeding; step 3, blow molding; step 4, multi-layer compounding; step 5, edge material recovery; and step 6: slitting and rolling. The production process is simple, high in production efficiency, environment-friendly and low in pollution; a grid film layer is added in the double-layer film, so that the toughness and tear resistance of the film are improved.

Description

technical field [0001] The invention relates to a film, in particular to a film production process and a production device for a dental scarf using a composite material. Background technique [0002] PE film, that is, polyethylene film, refers to a film produced from PE film. PE film has moisture resistance and low moisture permeability; the film is non-toxic, and it can be used for food. PE film has good uniformity, tensile strength and yield performance. Obvious advantages, it is easy to be recycled and protect the environment; the appearance of the packaging can better improve the efficiency of the corporate brand, polyethylene film can produce low-density, medium-density, high-density polyethylene film according to different manufacturing methods and control methods Products with different properties such as ethylene and cross-linked polyethylene, among which the industrial PE film often uses cross-linked polyethylene PE film with strong tensile strength, which is made b...

AI Technical Summary

Problems solved by technology

[0002] PE film, that is, polyethylene film, refers to a film produced from PE film. PE film has moisture resistance and low moisture permeability; the film is non-toxic, and it can be used for food. PE film has good uniformity, tensile strength and yield performance. Obvious advantages, it is easy to be recycled and protect the environment; the appearance of the packaging can better improve the efficiency of the corporate brand, polyethylene film can produce low-density, medium-density, high-density polyethylene film according to different manufacturing methods and control methods Products with different properties such as ethylene and cross-linked polyethylene, among which the industrial PE film often uses cross-linked polyethylene PE film with strong tensile strength, which is made by heating and melting PE plastic particles and blowing them into films by using a film blowing machine. Mechanical equipment, add dry polyethylene particles into the lower hopper of the film blowing machine, after blowing and cooling by the wind ring, press through the herringbone plate, take the finished film by the traction roller, and roll the finished film into a cylinder. The general PE film is relatively thin Poor toughness, easy to tear, relatively easy to damage; the existing plastic film production equipment, when the film is produced, the raw materials are heated and melted and then blown into a film. During this process, a lot of odor and harmful gases will be generated due to the plastic heating and melting , for a long time, it will be harmful to the human body and pollute the environment, which is not conducive to environmental protection; after the production of the plastic film, in order to prevent the deformation of the plastic film, it is necessary to roll the film immediately, and the film is usually directly cut by the cutting device when rolling the film. Slitting into the required film size and then rewinding, and scraps will be produced when cutting the film, usually the scraps are piled up on the ground, and when there is a large amount, they are recycled and melted again to form a film, which is very troublesome , and the scraps accumulated on the ground will be contaminated with dust and other impurities, which will affect the quality of the film; at present, many films will be transported through some guide rollers after being blown out, cooling during the transmission process and then rewinding. During the rolling process, if insects fly onto the film and stick to the film and then wind up directly, this part of the film cannot be used and needs to be removed, which is troublesome and costly;

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