Printing method and printing device for fabrics

摘要

A printing method is performed by use of a printing device. The printing device includes a print head, a supply roll, a serving roll, a support roll, a feed roll, and a winding roll. The printing device feeds a fabric material toward the winding roll by a prescribed length each time that a cycle of a print operation is performed by the print head, so that the printing is performed on the fabric material intermittently. The printing method includes performing a first feed operation of intermittently rotating the feed roll by a first motor to pull the fabric material from a print unit and feed the fabric material toward the winding roll by a prescribed length; and performing a second feed operation of intermittingly rotating the serving roll by a second motor to feed the fabric material toward the print unit. A detected tensile force value based on a detected value of the tensile force of the fabric material detected at a position upstream with respect to the print unit is compared to a preset target tensile force, and the second motor is controlled based on a result of the comparison.

主权项

1. A printing method performed by use of a printing device usable for fabrics, the printing device including an inkjet print head that performs printing on a fabric material, a supply roll around which the fabric material is wound, a support roll that winds therearound the fabric material fed from the supply roll and guides the fabric material toward a position below the print head, a winding roll that is driven to rotate to wind therearound the fabric material which has passed the position below the print head, and a feed roll provided on a moving route of the fabric material between the position below the print head and the winding roll and being contactable with the fabric material, wherein the printing device feeds the fabric material toward the winding roll by a prescribed length each time that one cycle of a print operation is performed by the print head so that the printing is performed on the fabric material intermittently, the printing method comprising the steps of:
performing, after one cycle of the print operation, a first feed operation on the fabric material of intermittently rotating the feed roll by a first motor to pull the fabric material from the position below the print head and feed the fabric material toward the winding roll by a prescribed length by the rotation of the feed roll; performing, along with the first feed operation, a second feed operation on the fabric material of intermittingly rotating a supply-side feed roller or the supply roll by a second motor to feed the fabric material toward the position below the print head, the supply-side feed roller being contactable with the fabric material at a position upstream with respect to the support roll in a moving direction of the fabric material; detecting a tensile force of the fabric material at a position upstream with respect to the position below the print head in the moving direction of the fabric material; comparing a detected tensile force value based on the detected value of the tensile force of the fabric material to a preset target tensile force value; and controlling the second motor based on a result of the step of comparing.