Technology

Outline

There are three manufacturing forms of the film's structure Window Film.

Clear (Non-Reflective)
Dyed (Non-Reflective)
Vacuum Coated(Reflective)
a. Metallized
b. sputtered

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Basic Film Structure

Clear Film

Most transparent film products function as safety films. UV protection from direct sunlight is also a major function, but it is usually used for protection and safety. In order to function as a safety film, it must generally have a thickness of at least four millil. This transparent film is considered a non-reflective film because it contains no metal.

Dyed Film (dyeed film)

This film is a non-reflective film that does not contain metal. Dyed film is primarily controlled by the flow of scintillation light, which is in blocking external vision, and reducing heat by absorbing solar heat. Dyeing films show a variety of colors by dyed polyester films, and include colors in thin adhesives. Since the dye film does not contain metals, it absorbs heat and effectively has little effect on thermal control Solar Control, and its reflectivity is also inefficient. In addition, dyeing films are easily bleached and cannot be preserved for a long time and have the ability to conduct heat indoors because they absorb and control heat, which is also a cause of glass damage due to high heat absorption in areas where solar radiation is strong. And dyeing film uses glue of the subclamatic system, which is a primitive method commonly used 20 years ago, such as a drop in adhesion strength in high heat, and is rarely used in advanced countries.

Vacuum Coated

Metal film is coated with deposited metal on the surface of polyester film. These films have efficient solar control properties because these coated metals can reflect a significant amount of solar light.
Films containing metal or metal oxide are not visually reflective and have two basic production processes for metallic type films.
1. Metalizing
2. Sputtering

Metalizing

In short, metalization (or vacuum coating) is the process of applying metal (mostly aluminum) to another layer of polyester film and another layer of polyester film. This product is Solar Control Film, which can reject more than 80 percent of the sun's radiation. Because the vacuum metalization process can be controlled, a thick layer of aluminum can be produced to ensure robust durability.

By varying the process of metalization, Solar Control Film can have different levels of visual light transmission. Furthermore, the synthesis of transparent polyester and lower aluminum layers can produce various color versions of the film. Metal film can be controlled by area of the solar spectrum and has various delivery levels and characteristics to control it. And the color of the metal film is not discolored.

Sputtering

The core of the sputtering process is the method of metalizing of metals. First, electrical energy is charged to anions by combining the electrical energy with the inert (or active) gas of the atmosphere in a vacuum, while binding it to atoms or gas molecules. Vacuum pressure causes particles charged with anions to move freely around the tube at high speeds. When charged particles tap the cathode (metals to be applied to films), the metallic atoms (or metallic oxides) are removed from the cathode. They knock on the film floor. He develops a thin layer of metal oxide.

There are two types of sputtering film.
- Film in the shape of metal or alloy (stainless steel, nickel-chrome, etc.)
- Filmmakers in the shape of metal oxide describe sputtering as a revolutionary technique.

This is because it is such a promising and future-oriented technology. Sputtering films have excellent solar control properties because they are produced by a metalizing process. Sputring techniques can be applied to a single layer of film (such as metal on a metal layer), resulting in the highest levels of solar control and thermal management, including unique collars and selective solar transmission. It also ensures near perfect insulation when constructed on glass.

Manufacturing technologies

All glass films are made using polyester film in various thicknesses.
Pressure-sensitive or water-soluble adhesive is applied on one side. The non-adhesive side is coated with a hard, scratch-resistant film.

Adhesives contain sunscreen chemicals to filter out UV rays. If UV protection and the scattering prevention of glass are the main targets, they no longer need to contain other substances. Three different technologies are used to implement each characteristic performance depending on the film type.

1. Coloring
2. Vacuum deposition
3. Sputtering

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1. Coloring The first is simple coloring that absorbs heat. All films have some amount of heat entering the interior of the glass, but the average daily flow of outdoor air is 15 m/h, more than 30 times larger than the average daily flow rate of 0.5 m, so all heat is dissipated outdoors. Double-layer glass shall not be attached to the interior surface as there is no flow of air between the glass.

The other two processes are considered (vacuum stacking, metal film) and sputtering techniques (advanced metal film) that apply a layer of metal particles to the film surface to form a reflective film. In each case, the second layer of film protects the film, and the metal film blocks the heat by reflecting it before it penetrates the glass.

2. Vacuum deposition

The film is passed through a tank containing a metal cylinder (usually aluminum, nickelchrome, and sometimes copper), vacuuming the pressure in the tank, heating the charge cylinder (inert gas) to cool the film surface as particles from the heated cylinder release. Due to limited types of metal, product diversification is not possible, and the concentration of metal sedation is caused by the time control (speed) the film stays in the tank. While the sedation technique is relatively inexpensive and performs well, there is a limit to it.

First of all, the large metal particles make the metal film provided for the reflective effect significantly thicker, resulting in darker, more reflective film film film. The second problem is that the types of metals that can be uniformly deposited on the film are extremely limited, making it impossible to diversify the product.

3. Sputtering

Sputtering technique is the most advanced form of metal film inside a vacuum tank, consisting of atomic units, which flow an electric field into the metal in a chemical inert gas (argon). This ion bombardment, called atomic billiards, causes atoms to crack in small units and move at high speeds, spreading evenly across the film's surface to calm down. More than 30 metals can be used and the metal film formed is much lighter. As a result of selecting different types of metals to extract only certain bands of sunlight, a highly reflective layer can be obtained with little mirror effect, heat absorption, or discoloration.

In fact, some of these films are completely transparent and reflective. Films manufactured with sputtering techniques are more expensive and more likely than conventional depositional films (ionic: ionic shock causes atoms to disperse evenly over the film surface in small increments, possible with a layer of hair thickness of 1/100).

Although the performance and characteristics of color film and metal film are generally distinct, there are some overlapping parts. Heat-absorbing colouring films have some reflective properties, and metal film is also heat-absorbing due to the mass and color of the metal. In more complex forms, many films have both layers of color and metal at the same time. It is possible to compensate for each disadvantage without sacrificing its performance by properly harmonizing and using the protons. Good examples are gray coloring and titanium film. The colouring layer alone makes the film very dark, and titanium fill alone makes it look like a mirror, each of which uses a small amount of protons to obtain a relatively bright and less reflective film.

The best way to select of window films

Manufacturing technologies

Unlike other industrial products, film quality is difficult to visually check, so consumers should be careful when choosing films.
The Oasis insulation film is 100% made in the United States and is highly quality and ensures thorough A/S through the operation of a specialized team.

How to choose the film you know!

The film is less than 0.1mm thick, but to complete a single film, various materials are mixed and glued together. Three important factors are needed to be a good film. Polyester, adhesives, correct installation techniques, and other factors that determine the surface of the film and the sun protection material are also factors that cannot be ignored.

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Adhesive system

Various types of adhesives are used in the film manufacturing process, but most of the film installation involves two similar construction methods.

The pressure sensitive adhesive method of mechanical adhesion to the surface of the glass is based on the pressure between the film and the glass. After removing the film protection side paper, attach the dry film to the glass to apply pressure to the plastic heater or tool. The film attached to the pressure sensitive can be peeled off together with the film and adhesive when the film is removed.

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Water-based adhesive removes the film adhesive protective backing paper, and then spray soap or other solution evenly over the glass surface and the adhesive surface. The film is then attached to the glass, cut to fit the size of the glass, and then reduce moisture with tools such as rubber rollers and plastic heaters. Water-based adhesive is bonded to glass in the form of chemical molecules. These chemical reactions produce a variety of strong adhesives, have excellent functionality, and are generally more durable than PS and DPS adhesives. Water-soluble adhesives not only have high clarity of film after adhesion, but also minimize the heat absorbed by the adhesive compared to thick adhesives. However, it may be difficult to remove the film after construction.

Regular PS Versus DPS (PS vs. DPS) PS and DPS adhesive systems have the same adhesive form.
When the protective silicon backing paper is removed from the adhesive, it exposes a soft adhesive surface. The DPS adhesive system uses a gel coating on a pressure sensitive adhesive to prevent damage to the film during construction.

When the protective film backing paper is removed from the adhesive surface, it is called "detacked" because it is not sticky. The gel coating of the DPS system dissolves when water or other solvents are sprayed on the surface and glues the film and glass.

Laminating Adhesives Laminating Adhesives is a valve adhesive used to glue various substances within the film structure, not the film surface. This valve adhesive combines two or more adhesives to form one thin layer of film structure. A typical Solar Control Film consists of a 1-millil layer. Additionally, metal coating is applied to one side of the valve adhesive between the layers of 2, fi-Milklear polyester.

Difference between Solar Control Film and Safety Film Adhesive

The difference between Solar Control Film and Safety Film Adhesives There is a fundamental difference between Solar Control Film and Safety Film.
The Solar Control adhesive system is designed to ensure that the Solar Control Window Film is firmly attached to the glass window. The Solar Control Film does not require a large amount of adhesive force to maintain the film on the glass surface, as it is light in itself at less than 2 millimeters in thickness. Traditionally, Solar Control Window Film uses PS, DPS, or Dry Adhesive System.

However, the Safety Film is designed to ensure that glass residues adhere to the film's surface in the event of glass damage. Due to the large difference in the weight of the glass and film, the functional effect of the Safety Film requires substantially stronger adhesive. Due to this adhesive problem, the Safety Film uses mainly pressure-sensitive PS adhesives and has a very thick layer of adhesion.

The force of the adhesive is measured by its peeling force. It measures whether the force is maintained for a long period of time, and is tested by ASTM metrics to determine whether it is possible to change the effect of the environment in which the adhesive layer is exposed, i.e. natural or universal.

Ultraviolet UV Absorbers UltraViolet UV Absorbers Special Ultraviolet Regulators are used to prevent damage to synthetic adhesives on polyester films or polyester films from the sun's ultraviolet rays. These sunscreens can either be present between adhesives or permeate the original polyester film. Ultraviolet absorbers protect furniture and fibers from fading and maintain the long-lasting preservation of the film.

Scratch resistant Coating Scratch-resistant coating filmmakers use many types of scratch-resistant coating to protect the outer surface of the film. Window Film is typically tested with ASTM D1044-94 (transparent plastic resistance test for surface erosion). Because of the devices used to execute this test, it is considered a retail abrasive test. This device is certainly a good way to repeatedly scratch the surface of the film, and then measure the large amount of thin scratches made by the abrader machine.

Release Liners The adhesive on the Release Liners Window Film is protected by a silicon- or non-silicon coated release liner (a protective backing paper that is removed before construction). The liner is removed during installation on the glass.
CAUTION: After the release liner has been removed from the film, the film is used in a state of visual blur. And some irregularities in the adhesive surface can be seen as flaws in the eyes. But they disappear after gluing them

Test Report

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