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Dołączył: 22 Kwi 2011
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Wysłany: Śro 9:52, 18 Maj 2011 |
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re are three chief types of ink accustom in inkjet printers: Solvent,[link widoczny dla zalogowanych], water,[link widoczny dla zalogowanych], and oil based.
Water-based inks: Water-based alternatively Aqueous/thermal inks are divided into 2 categories, Pigmented Inks and Dye inks.
Dye inks are formulated with the teeny particles carrying the colour attribute suspended in a water-based carrier solution. They have a tall colour brilliance and a broad gamut of colour. However the aptitude apt withstand light isn’t agreeable and they are subject apt mar by water once printed onto the substrate. Because the colour namely dissolved,[link widoczny dla zalogowanych], it exists by a molecular level and as such it is much extra accepting of variations in the quality of the substrate and extra importantly the coating above namely substrate.
Pigmented Inks.
Particles of pigment are held in suspension in a water-based carrier fluid. These particles of pigment have a vastly greater size that the smaller than tiny molecules dissolved in solution utilized in stain based inks. They are much more disappear resistant and can have a restricted outdoor petition as they are not adversely affected by water once they have dried. As the pigments have a much bulkier make up the substrate needs to be coated, or be more porous to allow the ink to cling and dry mainly.
Solvent-based Inks.
Inks in this category can be broken down into 2 teams that are referred to in a digit of alter ways including: soft, mild, secure, eco, and green as well as hard, real,[link widoczny dla zalogowanych], true, and lusty. The term 'eco' is usually spliced to products that are in harmony with the context; whatever, in the context of solvent inks which utilise chemicals derived from oil, this label must be treated with a great many of misgiving. The main inconsistency between the 2 groups is that 1 type is offensive and produces good results on a wider scope of un-coated medias meantime the mild solvents may need a coated medium or an over-laminate in mandate to give alike rendition.
The pigment is held in solution in a carrier attach with an adhesive. Once the ink is on the surface,[link widoczny dla zalogowanych], the solvent evaporates off (usually with an repugnant odour filling the apartment) and the adhesive sticks the pigment particle to the surface.
The Solvent inks are delivered onto the substrate using Piezo printhead technology that ensures one exactly and hasty publish.
Unlike water based inks where the substrate absences to be coated with an ink-receptive wafer the solvent process can produce prints appropriate because appearance use on non-absorbent, uncoated materials such as self-adhesive vinyl and scrim banner fabrics, pvc and polyester.
The resultant print is weatherproof and fade-proof and, to a certain extent,[link widoczny dla zalogowanych], scratch-proof.
The Mild Solvent Inks use slow drying carrier liquids and so printers that utilise this type of ink normally have heaters to dry the ink as it is printed.
Agressive solvents dry faster and have the added behalf of softening the substrate surface creating a stronger bond.
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