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Disadvantages and applications of polyurethane coated rollers

Views: 531 Update date: Oct 08,2021


polyurethane coated roller      1. The appearance is bright in color, the colloid surface is fine and smooth, and the colloid material and the mandrel are firmly bonded. The size of the roller is strictly controlled, and the size will not change greatly under different temperature and humidity conditions. It can adapt to the high-temperature and high-humidity environment of the printing workshop in the south and the severe cold and dry climatic conditions in the north.

2. Polyurethane coated roller has a wide range of hardness indicators, from HSA15 to HSD80, which can meet the hardness requirements of different types of printing machines.

3. The colloid for polyurethane rubber rollers has sufficient surface viscosity to ensure that the rubber rollers have good ink transfer and inking performance during the printing process, and its good ink affinity can ensure high-quality printing.

4. Polyurethane coated rollers have good chemical properties, especially good solvent resistance to diesel, gasoline, lubricating oil, kerosene, alcohol and saline solutions.

5. Polyurethane rollers have excellent physical properties. The Polyurethane rollers will not become hard or aging after long-term use, and they have good tear resistance, resilience and excellent wear resistance, so they have long service life, easy storage, and long-term storage. Affect the use effect; can withstand high pressure, high speed, high humidity production environment. Experiments show that the tensile strength and abrasion resistance of polyurethane rollers are 3 times and 5 times that of natural rubber rubber rollers; the compression permanent deformation and resilience are better; the service life of polyurethane rubber rollers is more than 3 times that of general rubber rollers.

6. Urethane coated roller has excellent hydrophilicity, so it can be used as water and alcohol dampening system.

7. The polyurethane roller has high strength and high tear resistance, so it is resistant to shearing and abrasion.




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