Thermo-sensitive CTP (cytidine triphosphate) version developing solution and preparation method thereof

Abstract

The invention discloses a thermo-sensitive CTP (cytidine triphosphate) version developing solution, which comprises the following components: deionized water, metol, anhydrous sodium sulphite, sodium metaborate, potassium thiocyanate, potassium bromide, phenidone and fluorinated alkyl. The invention also discloses a preparation method of the thermo-sensitive CTP version developing solution, which comprises the following steps: firstly, adding the anhydrous sodium sulphite into the deionized water to stir for the first time to prepare a mixing solution I; then, adding the metol into the mixing solution I to stir for the second time to prepare a mixing solution II; subsequently adding the sodium metaborate, the phenidone and the potassium bromide into the mixing solution II to stir for the third time to prepare a mixing solution III; then, adding the potassium thiocyanate into the mixing solution III to stir for the fourth time to prepare a mixing solution IV; and finally, adding the fluorinated alkyl into the mixing solution IV to stir for the fifth time to obtain the thermo-sensitive CTP version developing solution. The developing solution disclosed by the invention has the advantages of wide allowable operating temperature range, good density stability of an image-text part, great tolerance level and the like and does not damage an aluminum sheet base.

Description

technical field [0001] The invention relates to a heat-sensitive CTP plate developer and a preparation method thereof. Background technique [0002] CTP technology has brought huge changes to the printing industry. Regarding the development trend of CI and P technology, thermal CTP plate-making technology is becoming more and more mature and popular. The development of new thermal C11P plates with excellent performance has become the focus of printing plate manufacturers. one. Among the thermal CTP plates that have been commercialized at present, Yangtu thermal CTP plates are the mainstream in the market. After this type of plate is scanned by laser, there is a difference in solubility between the coating of the visible part and the non-visible part in the developer. Water, the non-visible coating does not dissolve and stays to form a part of the image and text that is ink-friendly. The quality of the developer directly affects the performance of the plate. In the develop...

AI Technical Summary

Problems solved by technology

However, this alkaline developer cannot sufficiently remove the unnecessary coating film, not only produces scum in the obtained pixels, but also makes it difficult to form pixels with excellent image edges

In addition, currently commercially available developers are highly specific and are basically compatible with specific plate materials. There are problems such as poor versatility, poor fatigue resistance, and small tolerance.