A liquid application unit includes a supply member, a liquid application device, and an application controller. The supply member includes a cylindrical or columnar winding core around which a linear medium is wound. The liquid application device applies liquid to the linear medium unwound and fed from the supply member. The application controller adjusts a liquid application length of the liquid applied by the liquid application unit to the linear medium in a feed direction of the linear medium. The application controller adjusts the liquid application length in the feed direction of the linear medium in accordance with a winding thickness of a remaining amount of the linear medium from an outer peripheral surface of the winding core.

A liquid application unit includes a supply member, a liquid application device, and an application controller. The supply member includes a cylindrical or columnar winding core around which a linear medium is wound. The liquid application device applies liquid to the linear medium unwound and fed from the supply member. The application controller adjusts a liquid application length of the liquid applied by the liquid application unit to the linear medium in a feed direction of the linear medium. The application controller adjusts the liquid application length in the feed direction of the linear medium in accordance with a winding thickness of a remaining amount of the linear medium from an outer peripheral surface of the winding core.

A system for in-line treatment of thread for use with a thread consuming device is provided. The system comprises at least one treatment unit being configured to dispense one or more coating substances onto the at least one thread when activated and a thread speed sensor being driven by the motion of the at least one thread. A method is further provided.

A system for in-line treatment of thread for use with a thread consuming device is provided. The system comprises at least one treatment unit being configured to dispense one or more coating substances onto the at least one thread when activated and a thread speed sensor being driven by the motion of the at least one thread. A method is further provided.

A dyeing apparatus is configured to be connected to an embroidery apparatus. The dyeing apparatus includes a dyer configured to dye a thread; a conveying path in which a path length of the thread from the dyer to the embroidery apparatus is changed according to an operation of the embroidery apparatus; and a conveyance control unit configured to adjust a conveyance speed of the thread in the conveying path, according to a change in the path length. The dyer dyes the thread at a dyeing speed that matches the adjusted conveyance speed.

A dyeing apparatus is configured to be connected to an embroidery apparatus. The dyeing apparatus includes a dyer configured to dye a thread; a conveying path in which a path length of the thread from the dyer to the embroidery apparatus is changed according to an operation of the embroidery apparatus; and a conveyance control unit configured to adjust a conveyance speed of the thread in the conveying path, according to a change in the path length. The dyer dyes the thread at a dyeing speed that matches the adjusted conveyance speed.

A system for in-line treatment of thread for use with a thread consuming device is provided. The system comprises at least one treatment unit being configured to dispense one or more coating substances onto the at least one thread when activated and a thread speed sensor being driven by the motion of the at least one thread. A method is further provided.

A system for in-line treatment of thread for use with a thread consuming device is provided. The system comprises at least one treatment unit being configured to dispense one or more coating substances onto the at least one thread when activated and a thread speed sensor being driven by the motion of the at least one thread. A method is further provided.