Abstract: A method of manufacturing folder sheets with reinforce holes, which comprises unwinding a spindled paper band; printing predetermined graphics on the paper band; causing the paper band to go through corona treatment; applying a reinforcement strip of thermoplastic material to selected areas of the paper band; cutting the printed and partially reinforced paper band in a direction substantially perpendicular to one edge of the paper band in such a fashion as to form a plurality of paper strips each having an elongated reinforced edge area; layering and counting the paper strips until they reach a predetermined number; punching the paper strips in the reinforced edge area in accordance with a predetermined pattern; cutting the punched paper strips in a direction substantially perpendicular to the direction of the first cutting to form a plurality of folder sheets; counting and piling the folder sheets to form a block until they reach a predetermined number; and packaging and boxing the folder sheet blocks.

Abstract: A method of manufacturing folder sheets with reinforce holes, which comprises unwinding a spindled paper band; printing predetermined graphics on the paper band; causing the paper band to go through corona treatment; applying a reinforcement strip of thermoplastic material to selected areas of the paper band; cutting the printed and partially reinforced paper band in a direction substantially perpendicular to one edge of the paper band in such a fashion as to form a plurality of paper strips each having an elongated reinforced edge area; layering and counting the paper strips until they reach a predetermined number; punching the paper strips in the reinforced edge area in accordance with a predetermined pattern; cutting the punched paper strips in a direction substantially perpendicular to the direction of the first cutting to form a plurality of folder sheets; counting and piling the folder sheets to form a block until they reach a predetermined number; and packaging and boxing the folder sheet blocks.

Abstract: A reinforcement device to be incorporated to punched folder sheets which increases paper resistance around the punched areas of the folder sheet and reduces their deterioration. In one embodiment, a reinforcement strip is added during the manufacturing process so as to reinforce the area of the punched hole. The reinforcement strip may be added before or after punching the holes, and may be a continuous or non-continuous strip. The reinforcement device may be used with a variety of paper sizes or weights, and may be made of a variety of materials, for example, polyurefin, PVC film or polyamide.