| Matt paper in the printing process, often a problem | | | | imprinting, one by one to take corresponding |
| occurs, that is dry and poor performance, slow | | | | measures, but the effect is not satisfactory, the |
| drying, finishing when the easy "off road", especially | | | | problem has not been fundamentally resolved. |
| when printed with black ink in the printing field is | | | | My analysis, blot dry and poor matt paper are two |
| more prominent, to product quality, had an impact on | | | | reasons for the special matt paper itself, and second, |
| the production cycle. To this end, we find the | | | | the special pigment black ink. |
| reasons from the following aspects. | | | | Matte sizing degree of paper as small, resulting in its |
| First, Paper The pH values tested. Because the pH | | | | loose structure, surface roughness, and thus its |
| value of paper is one of the factors affecting blot | | | | absorption stronger links ink material can be absorbed |
| dry, acidic paper drying is poor. Some commonly used | | | | quickly. Yellow, magenta, blue ink pigments are |
| brand by matt paper tracking and monitoring, the pH | | | | generally made from inorganic or organic pigments, |
| values were between 7 to 8, is a neutral and alkaline, | | | | and printed with black ink with carbon black |
| were within the normal range. Meanwhile, matte | | | | (elemental carbon) as pigments, carbon black is the |
| paper also made a track and monitor the water | | | | role of non-drying, normally printed with black ink |
| content, and its value at 8% ~ 9%, is a normal | | | | color ink than the other dried slowly. Plus links to |
| range. | | | | material of carbon black and adhesion than other |
| Second, fountain solution's pH value tested, fountain | | | | inorganic or organic pigments, thus causing rapid |
| solution's pH value stable at between 4.8 ~ 5.2. At | | | | absorption of ink on matt paper in binders, so that |
| the same time, strict control on the water. | | | | carbon black floating on the surface of paper. |
| Continuously decreases in the production process of | | | | Matte paper more widely used, some printed on |
| water, basically meeting the requirements of ink | | | | varnished after printing manufacturers to adopt ways |
| balance, will ink the emulsion to a minimum. | | | | to alleviate this problem. In this way not only |
| Third, analysis of the ink film thickness. Although the | | | | increases the cost of longer production cycle, but the |
| ink printed with black ink large field, but not trapping, | | | | biggest hazard is changing the characteristics of the |
| and in black ink of the high-profile part of the gentle | | | | original matte paper, and color are also affected. |
| frictions are "off road" shows the ink film thickness is | | | | To meet customer color matte paper printed with |
| not very big impact. | | | | black ink on the ground demands, while addressing |
| Fourth, the environmental temperature and humidity | | | | the "ink out" problem, I made some attempts, one |
| control. The temperature controlled at 25 , the | | | | with yellow, magenta, blue ink for cable version |
| relative humidity at 65%. At the same time, will | | | | superimposed with color ink approaches are black; |
| receive a minimum height of paper, basically 200 to | | | | two color method is used, the yellow, magenta, blue |
| 300. | | | | ink are printed with black ink to avoid mixing equal |
| Fifth, use matte paper specifically applies to the | | | | out printed with black ink in the "black." For yellow, |
| special ink printing, but also try to add to the ink in | | | | magenta, blue ink in the basic inorganic pigment |
| dryer. | | | | pigment, its drying and adhesion better than black. |
| Drying for more possible factors that affect | | | | |