Beam Dyeing
Beam dyeing is a yarn dyeing method in which warped warp yarns wound onto a beam are dyed, and the woven fabric is then produced using the dyed warp yarns.
Contents6 sections
Definition and Overview
Beam dyeing is a method in which warp yarns, before being put on a loom, are wound onto a cylindrical winding body called a beam and dyed by passing dye liquor through them. Because the warp yarns are dyed before weaving, it is used when making yarn-dyed fabric.
Dyed warp yarns are used not only as solid warp yarns, but also to express patterns such as stripes and checks by arranging warp yarns of different colors. The appearance changes greatly depending on the color of the weft yarn and the weave structure.
Features and Effects on Fabric
Because many warp yarns are wound in parallel on a beam, this is a suitable method for fabrics that use the same color continuously in the warp direction. It allows you to confirm the yarn color before weaving the fabric, and makes it easier to design patterns and color tones using warp yarns.
However, hand feel, luster, water absorbency, and strength are not determined by beam dyeing alone. The finished result varies depending on the type of fiber, yarn thickness and twist, weave structure, dye, and aftertreatment.
Main Applications
It is used for yarn-dyed woven fabrics such as shirt fabrics, blouse fabrics, suit fabrics, and uniform fabrics. In particular, it is used in plans that take advantage of color differences between warp yarns and weft yarns, such as warp-direction stripes, checks, and chambray looks.
Seasonality is not determined by the dyeing method alone. From light fabrics to heavy fabrics, it is used for a wide range of woven fabrics, from spring and summer to autumn and winter, depending on the fiber used, fabric weight, and weave structure.
How to Choose and Handling Notes
When selecting a fabric, check not only the process name beam dyeing, but also the blend ratio, weave structure, fabric weight, finish, color fastness, and shrinkage rate. For yarn-dyed patterns, also review the pattern type, repeat, and the amount of fabric needed for pattern matching during cutting in advance.
Shrinkage from washing, color fading, and sewing shrinkage during sewing are mainly affected by the fiber material, finishing process, and product specifications. Before full production, it is important to carry out not only fabric testing, but also sewing and washing tests including interlining and sewing thread.
- Check rubbing fastness and wash fastness for dark colors.
- For warp patterns, align the grain line and pattern placement during cutting.
- If the lot changes, check the color difference and the appearance of the pattern.
Differences from Similar Terms
Yarn dyed is a term that refers to the entire method of dyeing yarn or fibers before weaving them into fabric. Beam dyeing is one type of this, and it is characterized by dyeing warp yarns after they have been warped and wound onto a beam.
Cheese dyeing is a method of dyeing yarn wound into a cheese shape, and it differs from beam dyeing in the winding direction of the yarn and the main production process. Also, piece dyed refers to dyeing woven fabric, so the process order differs from beam dyeing, which dyes the yarn first.
Frequently Asked Questions
Is beam dyeing a type of yarn dyeing?
Yes. Beam dyeing dyes warp yarns before they are made into fabric, so it is included in yarn dyeing. Other types of yarn dyeing include cheese dyeing and skein dyeing, which are used according to yarn form, process, and application.
Does fabric made with beam dyeing shrink easily?
Shrinkage cannot be judged from beam dyeing alone. The shrinkage rate is affected by the type of fiber, the yarn and weave structure, scouring and finishing processes, and washing conditions. Before productization, test under the intended washing conditions and reflect the results in the pattern.
Which is better for patterned fabrics, beam dyeing or piece dyeing?
For stripes and checks created by warp arrangement, yarn dyeing including beam dyeing, in which the yarn is dyed first, is suitable. On the other hand, for complex multicolor patterns or pictorial patterns, methods such as printing on woven fabric may be chosen.
