3, high-quality dampening fluid
It is the newly developed wetting fluid. Generally, this wetting fluid has the following main components:
(1) Buffering agent: The purpose of adding the buffering agent to the wetting liquid is to stabilize the PH value of the printing water between 4.8 and 5.3. Equilibrium pH fluctuations are very beneficial to offset printing. The pH of the wetting fluid has a great influence on the transfer of offset inks. In addition, the plate base of the offset printing plate is aluminum or zinc, which is an active metal and is very unstable in a strong alkali and strong acid environment. Therefore, the pH of the wetting fluid must be strictly controlled. The buffer maintains the pH of the wetting fluid at a relatively stable level so as to maintain a stable ink balance.
(2) The printing plate protection agent, in the printing process, often occurs when the printing is restarted after the intermittent, but also need to re-adjust the ink balance, which is extremely unfavorable for the requirement of saving downtime. The addition of gum arabic to common wetting liquids serves the purpose of protecting the non-graphical portions of the PS plate, but because gum arabic is harmful to the graphic elements and repeat solubility is not good enough. Therefore, in the composition of high-quality dampening solution, some synthetic polymers are added as printing plate protection agents. Its role is:
a. Keep the new water of the non-graphic part.
b. Repeatedly slightly soluble.
(3) Wetting agent
To make water more fully wetted in printing, it is necessary to minimize the surface tension of the water, promote the cleaning and wetting of the printing plate, and allow the ink to be microemulsified faster. Therefore, wetting agents are generally added to the ingredients of the high-quality fountain solution.
(4) Preservatives
The role of preservatives in high-quality wetting fluids is:
a Protects and protects the metal surface of the offset press.
b Protection of plate layers and blanket cylinders.
(5) Microbial Killer
The addition of a microbicidal killer can prevent the growth of microorganisms in the water circulation system and thus play an important role in the stability of the printing process.
(6) Antifoaming agent
The anti-foaming agent works by dissipating the foam instead of dissolving it in the water circulation, which eliminates impurities.
Pet Collar And Leashes
Easy to adjust and put on or take off. All metal accessories are strong and rust-proof. Machine washable. Easy care for daily use.
We have many patterns, making your dog charming and easy to find.
Keep your pets safe when traveling outdoor.
Great for training,walking or running: These dog leashes are long enough for Freedom for both you and your dog, while keeping your best friend close enough to be safely UNDER your control. Perfect length for freedom around the neighborhood, easy walk ,hiking or jogging on mountain trails.
Durable Pet Accessories: A variety of patterns could be choose--floral/ checked / daisy/black and white/ pink/red/ and so on. We also have cute friends, always hope to get the best products for our lovely pets, so we designed the dog's safety items on the consideration of portable and durability.
We are a Chinese pet products manufacturer, our company produces and sells various cat accessories and dog accessories, including Pet Toys , Pet Apparel And Accessories, Pet Collar And Leashes, Pet Beds And Accessories, Pet Cleaning And Grooming Products, Pet Bowls And Feeders , Pet Houses , and Pet Carriers And Travel Products, which are accepted OEM&ODM. Please don`t hesitate to contact me if you need anything.
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Jilin LOYO Pet Products Co.,Ltd. , https://www.loyopetproducts.com