Packaging gravure printing

P.Y.127 is also used to an appreciable extent in packaging gravure printing inks. Highly transparent inks lend gloss especially to nitrocellulose inks. P.Y.127 prints are very fast, in which they largely parallel P.Y.13 prints. 

Compared to P.R.146, lower pigment area concentrations of P.R.147 are less lightfast. 1/1 SD letterpress proof prints equal step 5 on the Blue Scale for lightfastness, and 1/3 SD specimens match step 4, while 1/25 SD prints are equal to step 3. P.R.147 is used in offset inks, in packaging gravure printing inks, and in various flexo inks. Like other Naphthol AS pigments, P.R.147 is also employed in a series of special applications. 

Incorporated in its application medium, P.R.208 affords medium shades of red. The pigment exhibits good fastness to chemicals and solvents. Its main area of application is in the mass coloration of plastics and in packaging gravure printing inks. 

P.Br.22 is offered in the form of a variety of pigment preparations, designed for industrial finishes, packaging gravure printing inks, or wood stains. The pigment is not supplied as a powder. 

Biodegradable inks for packaging gravure printings, Toyo Ink MFG, Ltd, October 2004. www.biopolymers.nl... 

P.Y.12 types are used in packaging gravure and flexographic inks for their reasonable price, but they can also be utilized in aqueous printing inks, provided they are sufficiently fast to light. They cannot be applied as decorative printing inks to laminated paper. 

In applications where the pigment is fast enough to solvents to satisfy the requirements, it may also be used for offset, packaging gravure, and flexo printing inks. The resulting prints are soap, alkali, and acid resistant. They are not completely fast to paraffin and quite sensitive to butter and a number of other fats. P.R.14 prints are not fast to clear lacquer coatings and may not be sterilized. Heat stabil-... 

Since the prints do not tolerate calandering, the pigment is primarily used in offset inks, as well as in packaging gravure inks and in flexo inks. 

The printing ink industry uses P.R.146 for letterpress and offset inks and also in packaging gravure and flexo printing inks. The pigment lends itself to a variety of special applications it is used, for instance, to print bank notes and securities. A certain tendency to migrate, however, precludes its use in print on plasticized PVC films. 

Its coloristic properties make P.B.l a suitable and widely used colorant for special printing inks. The pigment may be incorporated without problems in oily binders, i.e., in letterpress and offset inks. It is equally often used in publication gravure printing inks based on toluene and in packaging printing inks based on NC. Problems which may arise as P.B.l is incorporated in these vehicles are mentioned under P.V.2. Besides, P.B.l lends color to paper, wallpaper, typewriter ribbons, and other media, although it is often difficult to disperse. 

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