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  2. Thermal paper - Wikipedia

    en.wikipedia.org/wiki/Thermal_paper

    The picture shows two thermal paper rolls with red alert lines to remind the merchant to replace the roll. Most thermal papers' coatings turn black when heated, but coatings that turn blue or red, and multicolor coatings, are sometimes used. An unintended heat source, such as a coffee cup, can discolour the paper and obscure any printing.

  3. Thermal printing - Wikipedia

    en.wikipedia.org/wiki/Thermal_printing

    Thermal printing (or direct thermal printing) is a digital printing process which produces a printed image by passing paper with a thermochromic coating, commonly known as thermal paper, over a print head consisting of tiny electrically heated elements. The coating turns black in the areas where it is heated, producing an image.

  4. Photographic printing - Wikipedia

    en.wikipedia.org/wiki/Photographic_printing

    Kodak Panalure is a panchromatic black-and-white photographic printing paper. Panalure was developed to facilitate the printing of full-tone black-and-white images from colour negatives – a difficult task with conventional orthochromatic papers due to the orange tint of the film base.

  5. Rich black - Wikipedia

    en.wikipedia.org/wiki/Rich_black

    The use of rich black has to be based on a full understanding of the printing conditions, including the inks, printing press and especially the paper. If too much ink is used on poor quality paper such as newsprint, this may cause the paper to literally fall apart. In addition, excessive amounts of ink may not have a chance to fully dry before ...

  6. Photographic paper - Wikipedia

    en.wikipedia.org/wiki/Photographic_paper

    Advertisement for Ansco Cyko photographic paper, 1922. Photographic paper is a paper coated with a light-sensitive chemical, used for making photographic prints.When photographic paper is exposed to light, it captures a latent image that is then developed to form a visible image; with most papers the image density from exposure can be sufficient to not require further development, aside from ...

  7. Photographic processing - Wikipedia

    en.wikipedia.org/wiki/Photographic_processing

    Black and white negative processing is the chemical means by which photographic film and paper is treated after photographic exposure to produce a negative or positive image. Photographic processing transforms the latent image into a visible image, makes this permanent and renders it insensitive to light.