Hydra version is different from alcohol moisturizing
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: 860681365@qq.com
People in the printing industry know that offset presses can be summarized as: hydrating version and alcohol dampening.
Hydra version: As the name implies, water is the main ingredient, auxiliary material: wetting powder.
Alcohol dampening: the main ingredient is still water, auxiliary materials: dampening solution and alcohol.
Alcohol: Ethanol, used in printing as isopropanol, its main function is to reduce the surface tension of moisture.
Moisturizing version: water, moisturizing powder, iron stick (water rubber sleeve); alcohol dampening: water, dampening solution, alcohol, rubber-based water gel
The sleek version of the machine is suitable for low speed products with relatively low print quality requirements. Its advantages are: saving materials, environmental protection, and low air pollution to the workshop.
The alcohol dampening machine is suitable for high-speed products with relatively high quality print quality. Its advantages are: print dots are full, images are realistic, and ink is easy to balance.
Moisturizing version: the water-proof rubber sleeve needs to be covered with water rubber sleeve, and the water rubber sleeve functions: 1. Reduce the impact and friction between the water glue stick and the plate cylinder, 2. Make the water evenly coated on the surface of the printing plate, 3 Effectively absorb excess moisture from the surface of the plate. Here I suggest that the water gel sleeve should be made of chemical fiber, and the reason is not explained.