[Office Partner Information Channel] Before printing, you must select the appropriate paper for the printed products. Especially considering the factor of network expansion, the choice of paper should be more cautious. The printability of the paper depends on its surface characteristics, such as the fast acceptance of the transfer ink, and the greater the degree of dot enlargement of the print. Absorbency is a property that determines the rate and amount of ink penetration into the paper. The better the paper's absorption performance, the higher the percentage of dot gain. When the ink is fixed on the absorbent paper, penetration and diffusion occur.
The rate at which paper absorbs ink plays a key role in the extent of dot gain.
The flatness of the paper is the degree of deviation between the actual surface of the paper and the ideal plane. The relationship with the expansion of outlets is that the higher the flatness of the paper, the smaller the dot enlargement, the lower the flatness, and the larger the dot gain. There are many types of coated paper on the market, such as glossy coated paper and matt coated paper. Coated paper helps to improve the fidelity and color clarity of dot printing because it is less absorbent than non-coated paper. It is well known that low-absorbency paper has a small dot spread.
Non-coated paper has a high absorption, high-absorbency non-coated paper to print high-line images, resulting in a high percentage of dot gain.
In addition, the double reflection performance of the paper on the light can also cause the dot to expand. About 80% of the white light is reflected when white light hits the white paper, but only 10% of the white light is reflected when the white light hits the junction of the dot covering the ink and the white paper. In this way, the human eye adds a circle of ink around the real dot while viewing the dot. Although the outlets did not actually change, the information that was felt was that the outlets expanded.
Source of information: Internet
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