Application and Characteristics of Polyurethane Roller

Application and Characteristics of Polyurethane Roller

Polyurethane rolls are made of polyurethane as raw materials, and then processed by different processes. Its surface color is bright, the size is stable, whether it is at high temperature or low temperature conditions will not produce deformation, in addition, it also has super viscosity, in many industries and fields have great use.

Characteristics of polyurethane rolls

1. The colloids used in polyurethane rollers have sufficient surface viscosity, which can ensure that the rollers have good ink transfer and inking properties during the printing process, and their good ink-friendly properties can ensure high-quality printing.

2. The appearance is bright, the colloidal surface is fine and smooth, and the colloidal 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 southern printing workshop and the cold and dry climate conditions of the north.

3. Polyurethane roller has good chemical properties and is suitable for various types of ink and printing methods. It has special resistance to solvent components in various ink, moistening solution and cleaning agent. Polyurethane rollers are also suitable for UV ink rollers and glazing rollers, especially for boiling water, diesel, gasoline, lubricating oil, kerosene, toluene, alcohol and brine solutions have good solvent resistance. But not resistant to acetone, ethyl acetate and strong acids and bases.

Application characteristics of polyurethane roller

1. The appearance is bright, the colloidal surface is fine and smooth, and the colloidal 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.

2. The hardness index of polyurethane roller is wide, from HSA15 to HSD80, which can meet the requirements of different types of printing machines on the hardness of rubber rollers.

3. The colloids used in polyurethane rubber rollers have sufficient surface viscosity, which can ensure that the rubber rollers have good ink transfer and inking performance during the printing process, and their good ink-friendly performance can ensure high-quality printing.

4. Polyurethane roller has good chemical properties, especially good solvent resistance to diesel, gasoline, lubricating oil, kerosene, alcohol and brine solutions.

5. Polyurethane rubber roller has excellent physical properties, long-term use of rubber roller will not harden, aging, and tear resistance, good resilience, excellent wear resistance, so long service life, easy to save, long-term storage does not affect the use of effect; Can withstand high pressure, high speed, high humidity production environment. The experimental results show that the tensile strength and wear resistance of polyurethane roller are 3 times and 5 times that of natural rubber roller. Compressive permanent deformation, good resilience; The service life of polyurethane rubber roller is more than 3 times that of ordinary rubber roller.

6. Polyurethane rubber roller has excellent hydrophilicity, so it can be used as a rubber roller of water and alcohol moistening system.

7. Polyurethane roller has high strength, high tear resistance, so shear resistance, wear resistance.

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