摘要:
An apparatus for producing a web of fibrous material, characterised by comprising: includes a roll having incisions with a depth of 0.01-2.00 mm a width of 0.01-2.00 mm and a pitch 0.01-10.00 mm, and rotated at a peripheral velocity v1 equal to the velocity of an upstream apparatus unit; a belt stretched between transmission rollers that advances at a velocity v2 less than v1 where v1/v2 lies between 1.05 and 1.40; a presser roller rotating at a peripheral velocity v2, associated with a presser system acting to press the belt against said the metal roll with a pressure between 1 kg and 200 kg per centimeter; a system that feeds a sheet of pliable fibrous material between the belt and the roll, the belt elongating longitudinally no more than 5% dimensional stability along its entire length, and thickness between 1 cm and 10 cm, and hardness between 24° Shore and 70° Shore.
摘要:
A method for producing substantially smooth extensible paper, characterised by passing the paper web on the production line between at least one pair of rollers, of which one is of soft material driven at lesser speed and one is of hard material driven at greater speed, the hard material roller presenting a base roughness RA of less than 5 and comprising, in its entire lateral surface, incisions having the following parameters: distance A between adjacent incisions 0.10-40 mm, width B of each incision 0.02-2 mm, depth C of each incision
摘要:
An apparatus for producing a web of fibrous material, characterised by comprising: includes a roll having incisions with a depth of 0.01-2.00 mm a width of 0.01-2.00 mm and a pitch 0.01-10.00 mm, and rotated at a peripheral velocity v1 equal to the velocity of an upstream apparatus unit; a belt stretched between transmission rollers that advances at a velocity v2 less than v1 where v1/v2 lies between 1.05 and 1.40; a presser roller rotating at a peripheral velocity v2, associated with a presser system acting to press the belt against said the metal roll with a pressure between 1 kg and 200 kg per centimeter; a system that feeds a sheet of pliable fibrous material between the belt and the roll, the belt elongating longitudinally no more than 5% dimensional stability along its entire length, and thickness between 1 cm and 10 cm, and hardness between 24° Shore and 70° Shore.
摘要:
An apparatus for producing a web of fibrous material, characterised by comprising: includes a roll having incisions with a depth of 0.01-2.00 mm a width of 0.01-2.00 mm and a pitch 0.01-10.00 mm, and rotated at a peripheral velocity v1 equal to the velocity of an upstream apparatus unit; a belt stretched between transmission rollers that advances at a velocity v2 less than v1 where v1/v2 lies between 1.05 and 1.40; a presser roller rotating at a peripheral velocity v2, associated with a presser system acting to press the belt against said the metal roll with a pressure between 1 kg and 200 kg per centimeter; a system that feeds a sheet of pliable fibrous material between the belt and the roll, the belt elongating longitudinally no more than 5% dimensional stability along its entire length, and thickness between 1 cm and 10 cm, and hardness between 24° Shore and 70° Shore.