Six ways to dye yarn, you’ll find what you want_China garment - garment brands, garment information, garment media

1. Skein dyeing

The dyeing method of converting short fiber yarn or filament into a frame of skein connected together on a loom, and then dip-dying it in various forms of dyeing machines is skein dyeing. Since there have been many monographs on skein dyeing in the past, I will not go into details in this book.

2. Bobbin dyeing

The short fiber yarn or filament is wound on a bobbin full of holes (the winding density is required to be appropriate and uniform, generally called a “loose bobbin”), and then it is placed on the yarn carrier of the dyeing machine (also known as a flat plate, The dyeing column (also known as yarn bamboo, spindle rod, insertion rod, etc.) of the hanging plate, creel, etc.) is put into the package dyeing machine, and the dye liquid is penetrated between the package yarns or fibers by the action of the main pump. Cycle, the way to achieve dyeing is package dyeing.

3. Warp beam dip dyeing

According to the requirements of the hue and quantity of the warp yarns of the colored fabric, the raw yarn is wound on the coiled tube with holes on the loose warping machine to form a loose warp beam (can be regarded as a large bobbin), and then it is installed on the dyeing machine. The yarn carrier of the machine is put into the warp beam dyeing machine, and the action of the main pump is used to make the dye liquid penetrate and circulate between the warp beam yarns or fibers to achieve dip dyeing to obtain warp yarns with uniform color. This method is called Beam dyeing.

4. Warp beam pad dyeing

Warp beam pad dyeing is mainly used in the production and processing of denim with colored warp and white weft. It introduces a certain number of thin shafts into each dyeing tank, and after repeated multi-immersion, multi-padding, and multiple ventilation and oxidation, the dyeing of indigo (or vulcanization, reduction, direct, paint) dye is achieved. After pre-drying and then sizing, the warp beam yarn with uniform color can be obtained, which can be directly used for weaving. The dye tanks during warp beam pad dyeing can be multiple (sheet machines) or one (ring machine). This equipment used in combination with sizing is called a sheet dyeing and sizing combined machine.

5. Pad dyeing of yarn bundles (ball warp dyeing)

This is also a special dyeing method for denim warp yarns. The dyeing process is to first bundle 400 to 500 raw yarns into a ball shape, and then bundle several bundles (such as 12 bundles, 18 bundles, 24 bundles, 36 bundles) of yarn in multiple dyeing processes. Repeated multiple immersing, multiple padding, and multiple ventilation and oxidation in the tank to achieve dyeing with indigo dye, and then warp and sizing. Acrylic tows can also be pad-dyed.

6. Special yarn dyeing methods

Just like fabrics, yarns also have partial dyeing, such as knot printing, space dyeing, tie dyeing, printing, discharge dyeing, gradient, etc.:

1. Seal Festival

According to the design requirements, a small section (such as 0.5-1cm) of color is printed on the spread yarn at a set distance. It can be the same color, but most of them are five colors. It must be noted that the spacing must be irregular and unequal, otherwise “turtle back” or “landscape painting” will appear on the canvas.

2. Duan dye

Several dyes are dripped onto different parts of the spread yarn at the same time. After vacuum suction or liquid removal, the dye is then fixed and washed. Compared with the printed knots, the color segments are longer, the spacing between the white yarns is smaller, and even two adjacent colors will appear “color matching” on the yarn. Space-dyed yarn is commonly used in knitted fabrics.

3. Tie-dye

Tie the part of the skein tightly with a rope (or wrap it with plastic film), and then dip-dye it. As a result, the tightly tied part is left white, and there is partial bleeding from dark to light in the tied part. The untied part is evenly colored, and the product is different. There is charm.

4. Printing (printing scriptures)

This method is generally used to produce warp printing machine fabrics. Print patterns on the warp yarns (not on the weft yarns), and the product style will be hazy, looking like flowers but not flowers. When printing warp, you can first fake weave (knitting method is printing first and then warping, weaving method is warping-fake weaving-printing), or you can print directly on the warp yarn. For example, synthetic fiber warp yarn can be printed on a transfer printing machine.

5. Gradient dyeing (colorful silk)