Jigger Dyeing
Jigger dyeing is a batch immersion dyeing method in which fabric is run back and forth in the dye liquor while kept in its open width, mainly for evenly dyeing woven fabrics.
Contents6 sections
Definition and Overview
Jigger dyeing is a process in which fabric is wound from one roll to another in a dyeing machine called a jigger, repeatedly passing through the dye liquor. Because the fabric is handled in open width, it is mainly used for dyeing woven fabrics.
It is a batch-type immersion dyeing process that treats a fixed amount of fabric as one unit. While moving the fabric back and forth and exposing both sides to the dye liquor, the dye penetrates and fixes to the fibers. The dyes and conditions that can be used vary depending on the type of fiber.
Characteristics and Finish
Because the fabric can be processed while controlling tension in an opened state, it is characterized by the ease of checking the width direction. On the other hand, if the tension, running speed, or circulation and temperature of the dye liquor are not appropriate, it can lead to wrinkles, differences in the selvage area, and uneven dyeing.
Jigger dyeing is the name of a dyeing method, not a term that indicates a specific hand, luster, or stretchiness. The finished hand and appearance vary greatly depending on the fiber composition, weave structure, dye, and aftertreatment.
Main Applications
It may be used for solid dyeing of woven fabrics made of cotton, rayon, polyester, and other materials. Applications such as shirts, blouses, pants, skirts, dresses, and jackets are determined according to the fabric's material, thickness, weave structure, and finish.
Seasonality is not determined by jigger dyeing itself. It can be used for anything from lightweight fabrics to relatively substantial woven fabrics, but the appropriate dyeing method is selected based on the fabric's delicacy, the required hue, and the desired fastness.
Selection and Handling Notes
When selecting fabric, check not only that it is jigger dyed, but also the blend ratio, fabric weight, finishing, shrinkage rate, care label, and various fastness properties. Even with the same color name, color differences may occur due to differences in lot, fabric specification, and dyeing conditions, so it is important to check a sample before mass production.
Before sewing, if necessary, allow the fabric to relax and wet it out, then check for shrinkage and changes in the grain line. With dark colors, be careful of color transfer due to friction, and with light colors, be careful of contamination from other colors. During sewing, adjust thread tension and presser pressure with test stitching to avoid surface abrasion and presser marks on the fabric.
- For product laundering, follow the care label.
- For color-blocked products, check in advance whether color transfer occurs.
- Before cutting, inspect the roll for color differences and uneven dyeing with roll inspection.
Differences from Similar Terms
Piece dyed refers to the timing of dyeing after woven or knitted goods are made, while jigger dyeing refers to the machine or method sometimes used for such piece dyeing. Yarn dyed means the yarn or fiber is dyed before weaving or knitting, so the stage being processed is different.
Jet dyeing is a method in which fabric is circulated by the flow of dye liquor. In contrast, jigger dyeing processes fabric by moving it back and forth between rolls. Both are types of immersion dyeing, but they differ in how the fabric is moved, how tension is applied, and the fabric properties for which they are suitable.
Frequently Asked Questions
Is jigger dyeing piece dyeing?
Jigger dyeing is a method for dyeing fabric, and if it is done after the woven fabric has been made, it falls under piece dyeing. However, there are other methods of piece dyeing that use different dyeing machines. Piece dyeing and jigger dyeing are terms for different classifications: the timing of dyeing and the dyeing method.
Does fabric jigger dyed tend to shrink?
Whether it shrinks easily cannot be determined by jigger dyeing alone. The fiber type, structure, drying and finishing conditions after dyeing, and whether shrink-proof processing has been applied all have an effect. In planning and sewing, check the shrinkage rate listed in the fabric specification and, if necessary, perform wetting or testing.
