How to distinguish segment color yarn segment dyeing yarn?

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Duan Caisha:

The utility model selects two more kinds of roving materials (colors) adds a section color yarn device on the spinning frame to realize the continuous feeding of one kind of roving the middle roller as the main part the other kind of roving the back roller intermittently as the auxiliary part, thus forming a bamboo like single strand yarn with color length color dots.

Segment dyed yarn:

Dye a yarn into two more colors, alternating between colors.

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Appearance

It can be seen color change, linear density fabric style.

There is a certain transition between the color length the base yarn, there is no distinct boundary between them.

The linear density of block dyed yarn is mostly variable; the yarn density of block dyed yarn is constant.

raw material

There are a wide range of applicable raw materials for Duan color yarn Duan dyeing yarn, such as pure spinning blending of cotton, hemp, wool, regeneration synthetic fiber. However, in the spinning process of Duan color yarn, the auxiliary yarn usually uses short fiber (i.e. the fiber length is generally between dozens of mm hundreds of mm), the Duan color style color length are related to the fiber length.

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Technological process

Color spinning section color yarn: dyeing before spinning (ring spinning), fiber dyeing after single color spinning, multi-color spinning, such as: main auxiliary roving are monochromatic; main roving monochromatic + auxiliary roving polychromatic; main roving polychromatic + auxiliary roving monochromatic; main auxiliary roving are polychromatic. At present, there are two main methods to mix multi-color, color matching, color length, color distance regularity.

Fiber dyeing → raw material selection → front spinning (color mixing) → spinning → winding

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Ordinary section color yarn:

Generally, the raw materials are colored polyester fiber cotton fiber, which are used to produce slivers respectively, the appropriate blending ratio is designed. Cotton is used as the main roving, colored polyester is used as the auxiliary roving, which is spun by the spinning frame. Because the main yarn auxiliary yarn have different dye absorption properties, the main auxiliary yarn can show different colors after spinning (ring spinning).

Raw material selection → front spinning → spinning → winding → weaving dyeing (overall dyeing)

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Segment dyed yarn:

First spinning (ring spinning non ring spinning) then dyeing, can be used to dye the package yarn the hank yarn. There are two methods of sectional dyeing: mechanical sectional dyeing original manual sectional dyeing.

Raw material selection → spinning → winding twisting → sectional dyeing