Classification and development of anti-static films

1. Static electricity in plastic films

When insulating materials are rubbed together, static electricity is easily generated; the higher the insulation of the object, the easier it is to generate static electricity. Plastic products usually belong to highly insulating substances, especially packaging films used in large quantities of various plastics, in addition to polyvinyl alcohol and a very small number of varieties, are highly insulating substances, so it is very easy to generate static electricity problems.

2. anti-static, conductive packaging materials classification

The generation of static electricity is directly related to the insulating properties of the object, while different items have different requirements for the antistatic properties of the packaging film. Some goods not only need to have general antistatic properties, but also need high antistatic properties, and even require a certain degree of electrical conductivity, so the need to regulate and classify antistatic films according to the different resistance of packaging materials.

3. The need to develop anti-static films

Electrostatic hazards are more common problems in people's lives, such as large flammable and explosive materials due to electrostatic fires and explosions, small objects such as dust and dirt caused by static electricity, are related to the electrostatic effect. With the development and application of plastics, synthetic rubber, synthetic fibres and other synthetic polymer materials, the use of insulating materials is becoming increasingly widespread in people's lives, and the hazards of static electricity are becoming more and more important to improve the quality of life, and people are paying more and more attention to the prevention of static electricity. The development and application of anti-static films is also based on such a realistic background. Packaging films that are highly insulating substances are often seen in the processing and application of static electricity and cause various disadvantages. For example, in the use of film packaging powdered goods such as laundry detergent, often because of the heat sealing surface of the electrostatic dust absorption, resulting in a significant decline in the strength of the seal, which has become an important cause of serious damage to the packaging in the process of storage and transport of goods. Another example is the transparent plastic packaging bags packaged goods, on the shelf display sales, will reduce the transparency of the packaging due to electrostatic dust absorption, thus significantly reducing the packaging on the display effect of the goods.

Packaging film in the printing process, may also be due to the electrostatic effect of the film caused by the defects of the printing pattern, such as film electrostatic dust absorption affects the transfer of ink, so that the printed products appear on the "flower point"; ink with static electricity caused by the uneven ink on the so-called "electrostatic ink spot" and Static "ink whiskers". Anti-static is often film in high-speed packaging lines to run smoothly on one of the basic conditions, such as the cigarette packaging process, static electricity on the film cutting, conveying, stacking and other processes can cause adverse effects, and even make the packaging machine can not operate normally.

In particular, it is necessary to mention that in recent years, with the rapid development of the IT industry, integrated circuits, components and their products are also a large number of applications of inexpensive and cost-effective film-based packaging materials packaging, if the use of electrostatic film packaging, will be due to film electromagnetic induction and friction generated by the accumulation of static electricity, a variety of sensitive electronic components, instruments and other high-voltage discharge, so that the packaged goods were damaged, resulting in great As a result, anti-static film is a practical variety of functional plastic packaging film that is attracting much attention and is developing rapidly.

According to the size of the plastic surface resistivity, some people also roughly divide the plastic ground into dustproof level, anti-static level, conductive level, electromagnetic shielding level several levels.

3. The need to develop anti-static film

Electrostatic hazards are more common problems in people's lives, such as flammable, explosive materials due to static electricity and fire, explosion, such as small objects due to static electricity and caused by the dust-absorbing finger, etc., are related to the electrostatic effect. With the development and application of plastics, synthetic rubber, synthetic fibres and other synthetic polymer materials, the use of insulating materials in people's lives is becoming more and more widespread, and electrostatic hazards are becoming more and more important in order to improve the quality of life, people are also paying more and more attention to the prevention of electrostatic problems, the development and application of electrostatic films, is also based on such a realistic background.

The development and application of electrostatic films is also based on such a realistic background. Highly insulating materials such as packaging films, in the processing, application of electrostatic and cause a variety of disadvantages have been commonplace. For example, in the use of film packaging powdered goods such as laundry detergent, often because of the heat sealing surface of the electrostatic dust absorption, resulting in a significant decline in the strength of the seal, which has become an important cause of serious damage to the packaging in the process of storage and transport of goods. Another example is the transparent plastic packaging bags packaged goods, on the shelf display sales, will reduce the transparency of the packaging due to electrostatic dust absorption, thus significantly reducing the packaging on the display effect of the goods. Packaging film in the printing process, may also be due to the electrostatic effect of the film caused by the defects of the printing pattern, such as film electrostatic dust absorption affects the transfer of ink, so that the printed products appear on the "flower point"; ink with static electricity caused by the uneven ink on the so-called "electrostatic ink spot" and Static "ink whiskers". Anti-static is often film in high-speed packaging lines to run smoothly on one of the basic conditions, such as the cigarette packaging process, static electricity on the film cutting, conveying, stacking and other processes can cause adverse effects, and even make the packaging machine can not operate normally.

In particular, it is necessary to mention that in recent years, with the rapid development of the IT industry, integrated circuits, components and their products are also a large number of applications of inexpensive and cost-effective film-based packaging materials packaging, if the use of electrostatic film packaging, will be due to film electromagnetic induction and friction generated by the accumulation of static electricity, a variety of sensitive electronic components, instruments and other high-voltage discharge, so that the packaged goods were damaged, resulting in great Therefore, anti-static film, as a practical variety of functional plastic packaging film, has attracted much attention and has been developing rapidly.

Nanjing Sumino Precision Machinery Co., Ltd. has professional cast film production lines, the company's main cast film manufacturing lines are: TPU hot melt film production line, CPP/CPE cast film production line, EVA solar encapsulation film production line, PE hygiene breathable film production line, PVDF cast film production line, PP three-dimensional film production line, medical blood purification film production line, multi-layer co-extrusion barrier film production line, LLDPE winding film production line, etc.

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