The present invention provides methods for producing a silk protein spinning dope solution suitable for producing high toughness fibres, the thus produced silk protein spinning dope solution, methods for producing fibres using said silk protein spinning dope solution. The paper folding apparatus includes a first knife unit and a second knife unit. Data in both domains is repaired. The second doped region includes a gate. Because of the rules governing abstracts, this abstract should not be used to construe the claims. TouchOff can be adjusted to take into account environmentally induced changes in the capacitance of the scoop capacitor.