Gradient phantom yarn and spinning method thereof

The invention discloses a gradient phantom yarn and a spinning method thereof. The method includes: determining three gradient base colors X, Y and Z, and designing m gradient elements; determining the mixing ratio Xmi, Ymi, Zmi, Xmj, Ymj and Zmj of an initial color segment and an end color segment; calculating the mixing ratio of an intermediate color segment; calculating the blending ratio of the initial color segment, the end color segment and the intermediate color segment of the m gradient unit through the mixing ratio; determining the roving quantity of colored roving corresponding to the gradient base colors and calculating the drafting ratio of each color segment; feeding the colored roving to a three-way digital spinning machine, inputting spinning parameters on a control panel and spinning the gradient phantom yarn by regulating the drafting ratio of each channel. 本发明公开了一种渐变幻彩纱线及其纺纱方法，方法包括以下步骤：确定3个渐变基色X、Y、Z，设计m个渐变单元；确定初始色段和结尾色段的混色比X、Y、Z，X、Y、Z；计算中间色段的混色比为；通过混色比计算第m个渐变单元的初始色段、结尾色段和中间色段的混纺比；确定渐变基色所对应的有