Printing - 43 ArtWork

Silkscreen – About Inks

Leave a Comment / Silkscreen, Printing / D Almeida

In screen printing, all choices depend, first and foremost, on the substrate. The substrate corresponds to the lower layer, which in a printing context refers to the surface to be printed, whether it is two-dimensional or three-dimensional. The chemical (composition) and physical (shape and roughness) characteristics of the substrate, as well as its intended purpose, define the type of ink to be used. Ambient temperature and humidity regulate any prior or additional procedures. Inks can be classified according to several criteria, based on their visual, structural, or drying/curing characteristics. Visual characteristics are, naturally, related to color and opacity, reflected in the optical impression generated when…

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Silkscreen – About Image File Formats

Leave a Comment / Silkscreen, Printing / D Almeida

A file format corresponds to a specific encoding standard established for storing information on a computer – it defines how bits are used to store data types. Each file format corresponds to a different standard that can vary greatly in complexity, depending on the content of the stored information. The contents are usually classified into the main and distinct groups: images, audio, video, and text – although the growing demand for new applications has led to the addition of more format structures. There are proprietary or closed formats as opposed to free or open formats.Open formats are specified and maintained by an established organization and…

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Silkscreen – About the Basis of Image And Color

2 Comments / Silkscreen, Printing / D Almeida

It is known that color derives from light. The planet is illuminated by light waves emitted by the sun, differentiated in wavelength, giving rise to various colors, which, when seen together, form the color white. The characteristic popular phenomenon demonstrating this reality is the formation of rainbows on rainy days, because water represents a medium with a different optical density than the surrounding air, and light waves refract when they cross the boundary from one medium to another. By refracting white light, the millions of tiny water droplets cause the perception of the constituent colors of light, like a separation of colors.

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Silkscreen – About Image Resolution – PPI, DPI, LPI and SPI

3 Comments / Silkscreen, Printing / D Almeida

Unlike the human eye, which captures an image in a continuous, permanent way, graphic environments have tools capable of reaching the image detail, establishing the distinction that separates digitally generated images from mechanically reproduced ones, resulting in two distinct units – the pixel and the dot, respectively. The key issue in this distinction is that the notion of dot is systematically shared across different sources, justifying a clarifying approach to the four resolution measurements relevant to the screen printing context – PPI, DPI, LPI, and SPI. PPI – PPI stands for Pixels Per Inch. The term PPI refers to the image resolution in its digital mode…

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