PURPOSE: To enable control to be performed more quickly and accurately by using newly a barcode (registered trade mark or special orders) control chart (tag) in place of a cleaning quality control chart (tag), by inputting laundry into a computer.

CONSTITUTION: A barcode (registered trade mark or special orders) control chart (tag) 2 is newly used in place of a cleaning quality control chart (tag) 1, and laundry is inputted into a computer 3, so that control can be executed more quickly and accurately than by the conventional methods. As other use, a barcode (registered trade mark or special orders) 2 is affixed in place of a product control chart (signboard and the like) 4 used at the work sites, and products are inputted into the computer 3, so that control can be executed more quickly and accurately than by the conventional methods.