(8) Very complete basic knowledge of fabrics worth learning – types of dyeing
The coloring of fabrics can be carried out at any stage, and can be done at different stages such as fibers, yarns, fabrics and ready-made garments.
1. Loose fiber coloring
Coloring of fibers or loose fibers before spinning, into large dye vats, in Appropriate temperature for coloring. Color spinning mostly adopts the method of coloring loose fibers (it also has the effect of single dyeing of different fibers), and is often used in woolen fabrics.
2. Top coloring This is also the fiber coloring before the fiber is made into yarn. The purpose of coloring the loose fiber is the same as that of the loose fiber coloring, which is to obtain a soft color mixing effect. Top coloring is generally used for combed wool yarn and wool fabrics.
3. The spinning yarn is colored before weaving. It is generally used for colored fabrics, sweaters, etc. or the spinning yarn is used directly (sewing line, etc.). Spinning yarn dyeing is the basis of dyeing and weaving. There are three methods for coloring conventional spinning yarn:
①Hank dyeing – soaking the loose skein in a special dye vat, this is a Costly coloring method;
② Bobbin coloring – the bobbin-colored spinning yarn is wound on a bobbin with holes, and then many bobbins are loaded into the coloring vat, and dyed The liquid circulates and flows, and the loosening effect and softness are not as good as those of skein coloring.
③ Warp beam coloring – It is a kind of large-scale package coloring. Before weaving, the warp beam (warping) must be made first, and the spinning yarn of the entire warp beam is wound. Color, such as combined size dyeing machine and warp beam spinning harness dyeing. Since it is a warp beam, it is mostly suitable for tatting and coloring.
But with the emergence of warp beam doffing, we can doff the dyed spun yarn on the warp beam into cheese yarn. This kind of dyed spun yarn has a wider range of applications. For example, the restorative coloring method mostly used in indigo coloring can only be solved well by using warp beam coloring. Without warp beam doffing, it is difficult to achieve.
4. Piece dyeing The method for coloring fabrics is piece dyeing. Commonly used methods include rope dyeing, jet dyeing, jig dyeing, and pad dyeing ( Not tie dye) and warp beam dyeing. I won’t introduce them one by one here.
5. Garment coloring
Put the garments into nylon bags, put a series of bags into the dye vat, and continue stirring in the dye vat (paddle coloring machine). Garment coloring is mostly suitable for knitted socks, T-shirts and other knitted work clothes, sweaters, pants, shirts and other simple garments.
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