Print quality

Main advantages of water inks include excellent press stability, printing quality, heat resistance, absence of fire hazard, and the convenience and economy of water for reduction and wash-up. 

In terms of performance relative to a conventional quill from Majer Precision, the trench pen showed spot size variance in the range of 10 to 20% CV, while the quill pin exhibited a spot CV -14%. Hybridization signal variation from these trench pen printings (n = 3 arrays, 72 spots per array) ranged 1.6 to 4.3% CV, while the quill produced 3% CV in signal. Thus, the trench pen performs at similar levels of print quality to more conventional quill pins. 

Improved print quality, since there is no pixel displacement due to film distortion... 

Problems may also arise with your plotting device. In such a case check the actual printer configuration either via the corresponding WINDOWS or from within ID WIN-NMR or 2D WIN-NMR (see chapter 4). Make sure that the settings with respect to paper size, memory capacity and orientation are correct and if there is still a problem reduce the resolution of your plotting device (e.g. 600 dpi = 300 dpi) or reduce the printing quality (e.g. high => medium). 

Similarly, a fast and simple method to produce print-quality like Ponceau replicas from blots was recently described (68). The positive replicas are the same size as blots and can be stored without loss of intensity. This makes them useful for localizing immunoreactive spots in complex 2D electrophoretograms. 

General features of ink jet inks influencing print quality and printer compatibility are summarized in Table 5.15. 

Wynn Bullock was a contemporary and good friend of Ansel Adams. While Wynn was renowned for his print quality, he rarely used a light meter and when he did it was in the most rudimentary fashion—aim at the subject and take a reading. Ansel was often seen coercing Wynn to learn the Zone System. Finally, Wynn acquiesced and purchased a spot meter and densitometer. Ansel told him what to do, and Wynn began testing his materials. 

They say my print quality is bad. Darling, they should see my negatives. 

Paper may be developed over a wide range of times with varying results. Up to a point, the longer paper is developed, the richer the gradation and overall print quality. Exposure and dilution can be adjusted to allow development from 1 to 7 minutes. Less than 1 minute can result in stains, streaks, and uneven development. However, the changes that take place after 3 minutes are often slight, even though they can at times make a difference. 

Lootens, J. Ghislain. Lootens on Photographic Enlarging and Print Quality, 5th ed. New York Amphoto, 1958. 

The phenomenon has been studied by Gao and Sonin [16] and it has been shown that the cross-sectional area and apparent contact angle of a printed bead is a function of the substrate temperature and the print-scan velocity. A quantitative analysis of jet-printed phase change materials was reported by Schiaffino and Sonin [17] for isothermal conditions. The results showed that the contact angles for the printed drops could be varied as a function of the substrate temperature. By adjusting the substrate temperature and the scanning speed, the feature size and print quality can be adjusted without having to modify the substrate surface energy. 

Microelectronics and computer programming have allowed the printing processes to be analysed, and sensed remotely so that many of the variables in the printing are monitored, adjusted, and controlled automatically from a console. Such fundamentals as flow of ink from the duct, colour strength, ink viscosity, temperature, and humidity all are monitored and checked against pre-determined limits, so that they can be adjusted to maintain consistency of print quality. 

The main advantages of the photo-polymer system include safer operations that do not use hot metals, such as zinc or magnesium, or plating solutions for the deposition of copper. Processing involves the use of developers such as water, dilute sodium hydroxide, and dilute solutions of sodium carbonate. Because each plate is a copy of the original (not a duplicate from a mould that has been used many times) the print quality is consistent and more predictable. While some of the pressures for change were environmental a bonus is that the overall costs of producing photo-polymer plates are lower than those for the traditional metal plates. 

Figures 6 through 8 show the print quality of foam printing versus conventional. Figure 9 illustrates the reduction of strike through on foamed printed goods. The fabrics illustrated were printed on production equipment.

Radiation-Curable, 100% Reactive Pigment Prints The Effect of Paste Rheology on Print Quality... 

Figure 12. Comparison of print quality (sharpness and skinniness ratings) of polyester/cotton, 50/50 fabrics printed with radiation-curable system (2.5% Graphthol Blue 6825, 15% acrylo-urethane oligomer (MW 6000), 79.5% monomer mixture and 3% Cab-O-Sil) and all aqueous systems Skinniness rating—...

The print quality of polyester/cotton, 50/50 fabrics printed with the radiation-curable system is very close to that using an all aqueous system (Figure 12) and presumably due to their similar rheological behavior. 

Becker, C. L., "Microscopical Investigation of Print Quality of Radiation Curable Pigment Printing," M.S. 

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