Packaging printing

There is some ambiguity about Mulliken population analysis in the literature. This is because various software packages print different portions of the analysis and may name them slightly differently. The description here follows some of the more common conventions. 

Black Pigments. The only black pigment used to an appreciable extent in inks is carbon black It is used in newsprinting, pubHcation, commercial and packaging printing therefore, in large quantities. Black pigments ate offered in fluffy or beaded forms and in a variety of particle sizes and physical properties. 

If the research as to likely organic products that will sell comes up with a series of negatives, then the farmer has to fall back on his own creativity. As Finke (1989) pointed out, he could not persuade any bakery in the nearby towns in Ireland to bake organic bread from his flour they said there was no market. However, he finally persuaded one bakery to bake it, on contract, provided he did the selling. They agreed, he got the packaging printed and after five months they had sold 10 000 loaves to various shops in the town. After the consumer preference had been demonstrated, there was no longer a problem with the bakers. 

A number of diarylide yellow pigments are also available in the form of very opaque products with small specific surface areas. These are used to an appreciable extent in Chrome Yellow free paints, in packaging printing inks, and other media. Fastness to light and weather are much improved in opaque varieties, compared to the corresponding transparent types their rheological characteristics are superior. Opaque pigments are not resinated. 

P.R.253 is used in packaging printing inks. For a pigment of its class, it shows medium tinctorial strength. The prints demonstrate good fastness to organic sol-... 

Aluminum lakes of P.0.17 l are available in the USA. Properties which are pertinent to the coloristics and application of the pigment parallel those of the barium lakes. P.O,17 l, an equally high strength pigment, also affords brilliant shades and is used in packaging prints, especially for paraffin-based wrapping paper for bread. 

Commercially available P.O.46 types are usually quite transparent. They are employed primarily in packaging printing inks, also in offset and metal deco printing. Publication gravure inks, plastics, especially PVC, LDPE, and elastomers, as well as general industrial paints are suitable media for pigment application. P.O.46 is less solvent resistant than P.R.53 1, but it is faster to alkali and acid. In terms of lightfastness, P.O.46 performs poorly 1/3 and 1/25 SD prints equal only step 1 on the Blue Scale. 

The printing ink industry utilizes P.Gr.7 particularly for packaging printing inks. In this area, however, green shades are frequently also produced by combining the less expensive (3-Copper Phthalocyanine Blue with suitable organic yellow pigments. 

In the printing ink area P.R.264 can be used for high grade packaging printing inks. The prints are transparent and show good lightfastness. 

P.R.83, listed under Constitution No. 58000 1, continues to be used only in the USA. The pigment affords brilliant, bluish shades of red. Traces of iron as an impurity adversely affect the full shades and shift the color towards duller and bluer shades. The pigment is not fast to common organic solvents, especially to esters and ketones. It therefore lacks stability to overcoating. Its lightfastness, particularly in tint, is poor. P.R.83 is used in paints for toys, in packaging printing inks, especially for soap and butter, and in artists colors. 

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. 

Typesetting by the authors and SPS using a Springer DTjX macro package Printed on acid-free paper SPIN 12066124 89/SPS 5 4 3 2 1 0... 

Case study UV drying printing inks in packaging printing ... 

The major opportunity for our technology was to be in store-printed labels. The most expensive items in supermarkets are found in the meat and fish counters. Generally, meat is cut and packaged in the store, and a label must be printed then and there. The store-printed labels require a somewhat different code than the package-printed labels, as they reflect the price of the item. That, however, is not important here. 

Oil-off occurs in margarine when the matrix of fine fat crystals is no longer of sufficient size or character to be able to enmesh all of the liquid oil. The problem is most serious for stick products as the outside of the inner wrappers may become oil soaked, and if severe, oil will leak out of the package. Prints are also the most susceptible to oil-off because of the pressures to which the product is subjected when pallets or individual packages are stacked. If the margarine is to be merchandised outside of dairy cases, the 21.1°C (70°F) SFI should be specified as high as... 

Besides the adhesives manufacturers, European machine manufacturers are also leaders in their fields (wood processing, labeling, packaging, printing), providing a favorable basis for further developments in the field of adhesives. 

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