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Offset blanket is an indispensable part of offset printing
Offset blanket is an indispensable part of offset printing, which plays a key role in transferring ink and maintaining printing quality. This article will introduce the relevant knowledge of offset printing blanket in detail, including its material, characteristics, purchase points and precautions to help you better understand and apply this printing consumables.
Material and characteristics of 1. offset printing blanket
Offset blanket usually consists of a rubber layer, a fabric layer and an adhesive layer. Among them, the rubber layer is the core part of the blanket, which determines the elasticity, ink transfer and durability of the blanket. The fabric layer provides strength and stability to the blanket, while the adhesive layer ensures firm adhesion of the blanket to the cylinder.
The main features of offset blanket include:
Good ink transfer: the blanket can effectively transfer ink, to ensure that the color of the print is bright and uniform.
High elasticity: The blanket has a certain degree of elasticity, can adapt to printing materials of different thicknesses, and keep the pressure uniform.
Abrasion resistance: The blanket has good abrasion resistance and can withstand long-term high-speed printing.
Chemical resistance: The blanket has good resistance to chemicals such as ink and cleaning agents, and is not easy to corrode.
2. Offset Printing Blanket Purchase Points
Material: According to the printing requirements and budget to choose the appropriate blanket material, such as natural rubber, synthetic rubber, etc.
Thickness: Choose the appropriate thickness of the blanket to meet the needs of different printing presses and substrate.
Hardness: The hardness of the blanket should match the pressure of the printing press to ensure the printing effect.
Surface treatment: according to the characteristics of the printing ink to choose the appropriate surface treatment, such as glossy, fog and so on.
Brand and certification: choose a well-known brand of rubber blanket, and check whether there is a relevant quality certification.
Precautions for the use of 3. offset printing blanket
Correct installation: Ensure that the blanket is installed correctly and smoothly to avoid problems such as bubbles and wrinkles.
Appropriate tension: Adjust the tension of the blanket to maintain its stability and uniformity during the printing process.
Cleaning and maintenance: clean the blanket regularly to remove residual ink and impurities and maintain its good printing performance.
Observe wear: regularly check the wear of the blanket, and replace the severely worn blanket in time.
Storage conditions: Avoid high temperature, humidity and direct sunlight when storing the blanket, so as not to affect its performance.
In short, offset blanket plays an important role in offset printing, and its material, purchase and use directly affect the printing quality. Understanding the characteristics and purchase points of offset printing blanket, proper use and maintenance can ensure the smooth progress of the printing process and improve the overall quality of printed matter.
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