Window Film – How Its Done?

WINDOW FILM & TINTS.

Nevertheless, despite the fact that it is not worth mentioning, the overall window manufacturing process is quite intricate as you will see shortly. Usually, the manufacturing process entails a number of steps. These have been broken down as shown below and with each and every step there is a picture which entails what actually happens in that step. Moreover, before the actual steps of window film manufacturing have been covered, it is important to consider some of the key things which are needed for the process.

REQUIREMENTS.

Three main things are needed here, these are: polyester base films, coatings and adhesives.

  • POLYESTER BASE FILM.
    Owing to its strength and durability, you will find that most professional films actually use polyester for this reason.
  • COATINGS
    For the coatings, you have to select these wisely since the outer coatings are very important since it is these which ensure the durability of window films.
  • ADHESIVES
    Finally, there are the adhesives. It is these which actually allow film to stick to glass surface as well as bond multiple films layers to one another. These are of two variations: dry sensitive adhesive or a pressure sensitive adhesive.

STEPS IN MANUFACTURING.

  • COATING
    This is the first step of window manufacturing. At this step, adhesives and other scratch resistant materials are basically transferred from a container to a roller. After this, these are rolled out onto the surface of the polyester.
  • LAMINATING
    After step one, a film coated with adhesives is then stuck onto a second uncoated film using a roller system which simply presses the two films onto one another.
  • METALLIZING
    This step simply entails winding of polyester film around some water cooled roller in large metal chamber vacuum. After that, aluminum – most commonly used metal for this process – though others may be used is evaporated onto the cold surface of the film.
  • SPUTTERING
    At this step, some metal or an alloy target is actually bombarded with positive ions so as to be able to sputter metal atoms out of the target onto the cold film surface. Usually, a large variant of metals may actually be sputtered and some of these like nickel actually have an extra resistance to any sort of corrosion. This process may take a lot of time, but it is all the more precise and sure as compared to doing things in a hurried manner.
  • COLOURING
    This is the final process or part of the development process and it may be achieved in a number of ways. The first method may be to color the adhesive before actually coating it onto the surface and the second option may be to color the laminating layer. Notwithstanding, use of dyes or pigments may be employed to color the polyester film either during the extrusion process or after it has been manufactured.

So, as a follow up, you may envision the window film manufacture process to be a two main step operation composing of:

  • COATING SYSTEM.
    Step one. This area focuses on assembling the necessities for the overall process – setting up coatings, adhesive and other requirements.
  • CONVERTING SYSTEM.
    Steps two through to five where the actual transformation really takes place, making the glass film actually appear as one. This is the final product that architects would select for their projects

 

 

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