A winding device for winding a material to be wound includes a winding mandrel provided for carrying a carrier of material to be wound in a winding process, with a transporting unit on which at least a component of the winding mandrel is arranged, and with a positioning unit provided for changing a spatial position of the transporting unit. The positioning unit is provided for at least substantially adjusting a spatial end position according to requirement. The transporting unit is embodied as a pivot arm, the transporting unit is in at least one operating state provided for receiving a carrier of material to be wound, wherein the material to be wound is wound onto the carrier of material to be wound and/or is wound off the carrier of material to be wound, and the transporting unit is in the winding operative position during the winding process.

A concentrated adjuvant composition comprises an incompletely hydrated water-soluble polymer suspended in a liquid medium, a suspension agent and a hydration inhibitor component.

It is possible to suppress damage to a yarn path guide mechanism and a textile machine. There is a first supporter which makes contact with a supporting shaft supporting a roller, a second supporter which is capable of making contact with the supporting shaft, and a biasing member which biases the second supporter in a direction in which the supporting shaft is sandwiched between the second supporter and the first supporter. When a virtual straight line which passes through a winding center and a rotation center is a first virtual straight line whereas a virtual straight line which extends in a direction orthogonal to the first virtual straight line and passes through the rotation center is a second virtual straight line, the second supporter makes contact with a part of the supporting shaft, which is positionally opposite to the winding center over the second virtual straight line.

It is possible to suppress damage to a yarn path guide mechanism and a textile machine. There is a first supporter which makes contact with a supporting shaft supporting a roller, a second supporter which is capable of making contact with the supporting shaft, and a biasing member which biases the second supporter in a direction in which the supporting shaft is sandwiched between the second supporter and the first supporter. When a virtual straight line which passes through a winding center and a rotation center is a first virtual straight line whereas a virtual straight line which extends in a direction orthogonal to the first virtual straight line and passes through the rotation center is a second virtual straight line, the second supporter makes contact with a part of the supporting shaft, which is positionally opposite to the winding center over the second virtual straight line.