A positive as a film record that represents the colour of objects in the scene with same colours. Creating a film positive is a bewildering task for beginners. To make a successful film positive one should block the exposure from light and film positives work at their peak when they are totally opaque. Following are the types of film positives:
These types of films are not as renowned as tier density is too hard to control. These types of films are made of clear plastic films bases. A big problem in using them can be any distortion can be made die to heat of the fuser.
This type of film can be found in most inkjet printers nowadays. These are also made of clear plastic film bases and most of them are waterproof. An RIP software improves the quality of inkjet film positives significantly. RIP software also makes the film dense which is essential in a film positive.
These films are produced by a thermal printer. They too are made of clear plastic film bases. It is expensive than inkjet and laser films. But the increase in price is compensated with increase in quality and density. Another advantage can be that this printer produces very opaque film positives.
It is not as popular as the former ones as it is very difficult to control for beginners. Toner can only be commanded by printer settings and affected by cartridge age. The only disadvantage is that there is a possibility of shrinkage in the fuser.
These are the poorest of all film positives in the history of film positives, even though they are made of clear plastic bases. The result will be in poor quality, resolution and density. Doubling up the positives often is used to achieve the opacity required for screen making. The only advantage is that these are available at most stores.
Image Setter Film:
This method is proved to be the best among the rest. They too are made of clear platic bases. The only drawback of this positive film is that they are way too expensive than the rest mentioned above. They only be afforded by big firms and print houses.
Plotter Cut Vinyl on Clear Acetate:
This type of positive film with plotter cut vinyl graphics applied to them and is made from clear plastic bases and is a home brew method which results in very opaque film positives. These will block the exposure source but the deep darkest ones are the best. The only drawback of this film positive is that it has limited designs. It has a fixed range of designs that can be used to print.