Piece Dyed

Definition and Overview

Piece dyed is a dyeing method that dyes textile after it has been woven or knitted, without dyeing the fibers or thread first. It dyes greige fabric (before dyeing or finishing) by the roll or in textile units, and performs finishing as needed to adjust the hand.

It is used not only when dyeing white or light-colored textile to the desired color, but also when using dyeable greige fabric to create multiple color variations. Depending on the combination of dye, material, structure, and pre- and post-treatment conditions, color development, hand, and dimensional change will vary.

Features

It is easy to express a wide range of colors in No pattern textile, and it is easy to create color variations for textile of the same structure and standard. By combining post-dyeing wash processing, fuzzy, resin processing, and other treatments, surface texture, softness, and firmness can also be adjusted.

On the other hand, dyeing and post-processing affect textile by moisture, heat, and tension. For that reason, the finished textile width, industry weight, shrinkage rate, skew, and hand may change from the greige fabric stage. It is also necessary to note that dyeing behavior and appearance can differ depending on the color.

• Depending on the material blend ratio, some fibers dye well while others do not, and heathered effects or differences in depth may appear.
• For dark colors, check color fading from friction and washing; for light colors, check the risk of color transfer and noticeable stains.
• Even for piece dyed products, color differences may occur due to differences in lot or dyeing conditions.

Main Applications

It is used for a wide range of apparel that uses No pattern textile, such as shirts, blouses, cut-and-sew items, pants, skirts, dresses, jackets, and outerwear. The suitable method is selected according to the material or blend to be dyed, such as cotton, linen, wool, rayon, and polyester.

Seasonality is determined by the textile material, thickness, structure, and finish, and the fact that it is piece dyed does not itself limit use to spring/summer or fall/winter. Because it is processed at a different stage from garment dyeing, its impact on pattern and sewing specifications also differs.

Selection and Handling Precautions

When selecting textile, check the composition, structure, color, color fastness (resistance to fading and discoloration), shrinkage rate, textile width, and industry weight. It is important to confirm in advance whether washing fastness, rubbing fastness, and the risk of color transfer from sweat or water are appropriate for the product's washing method and wearing environment.

Before mass production, check piece goods samples or product samples in the actual color, and confirm post-sewing seam puckering, compatibility with interlining, and dimensional changes after washing. Dark-colored items may require care instructions such as washing separately, so consider labeling based on test results.

• Even with the same product number, take possible color differences in additional production into account and secure the required quantity from the same lot whenever possible.
• Before cutting, check color differences, width, and skew for each piece of fabric, and prevent shade variation between the left and right panels or within the same product.
• For textile containing natural fibers or regenerated fibers, determine specifications while allowing for shrinkage or stretching during washing or in wet conditions.

Differences from Similar Terms

Yarn dyed is a method in which yarn is dyed before weaving or knitting. It is suitable for creating patterns and color effects such as stripes, checks, and chambray by combining yarn colors, while piece dyed is often used to make plain textile by dyeing the entire textile a single color.

Printing is a process that adds patterns or colors to the surface of textile. While piece dyed refers to the process of dyeing textile in a dye bath, printing expresses designs by methods such as screens or digital printing. Garment dyeing, on the other hand, is a method of dyeing finished clothing, and is distinguished from piece dyed, which is performed at the textile stage.

Frequently Asked Questions

How do you choose between piece dyed and yarn dyed?

When considering color variations centered on No pattern, piece dyed is used. When creating checks, stripes, chambray, or other effects that take advantage of yarn color differences, yarn dyed is more suitable. However, the appropriate method varies depending on the number of colors, quantity, material, and desired hand, so confirm with textile samples.

Does piece dyed textile shrink easily?

In piece dyed production, moisture and heat are applied during the dyeing and finishing processes, so dimensions may change. However, the degree of shrinkage differs depending on the fiber type, structure, processing conditions, and washing method. It is important to check the shrinkage rate of the textile and conduct washing tests on sewn products before mass production.

What should be noted for dark-colored piece dyed items?

For dark colors, check for color fading from friction, sweat, water exposure, and washing, as well as color transfer to other products. Special caution is needed when contact with light-colored linings, accessories, bags, or furniture is expected. Confirm the fastness required for the application, and set care instructions and washing methods based on test results.