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Views: 11 Author: Site Editor Publish Time: 2026-08-26 Origin:
Polyester is one of the most widely used synthetic fibers in the textile industry due to its excellent strength, durability, wrinkle resistance, and dimensional stability.
However, because polyester has a compact molecular structure, high crystallinity, and low moisture absorption, disperse dyes usually require high temperature conditions to penetrate effectively into the fiber structure.
Traditionally, polyester fabrics are dyed at around 130°C under high-temperature dyeing conditions. Although this process provides good dye penetration, it also brings several challenges for textile manufacturers, including:
With the increasing demand for energy-saving, sustainable, and efficient textile production, low-temperature polyester dyeing technology has become an important direction for modern dyeing factories.
In conventional polyester dyeing, the dye bath needs to be heated up to approximately 130°C and maintained for a certain period.
The higher dyeing temperature requires more steam consumption and longer heating cycles, resulting in:
Reducing dyeing temperature is therefore an effective way to improve energy efficiency in textile processing.
Although high temperature helps disperse dyes penetrate polyester fibers, unsuitable dyeing conditions may cause uneven dye migration.
For example:
may lead to:
These problems are especially common in deep shades and polyester knitted fabrics with high elasticity.
Long-term exposure to high temperature conditions may affect some polyester blended fabrics or sensitive materials.
Possible issues include:
Therefore, controlling dyeing temperature while maintaining dye penetration efficiency has become a key challenge in polyester dyeing.
To overcome these challenges, textile manufacturers are increasingly adopting low temperature dyeing technology.
The principle is to improve the diffusion ability of disperse dyes by using specialized dyeing auxiliaries, allowing polyester fibers to achieve effective dye absorption at lower temperatures.
Compared with conventional 130°C dyeing, low temperature dyeing can:
Sylic D2400 (CY-522) is a specially designed low temperature dyeing agent developed for polyester and polyester blended fabrics.
It functions as:
By modifying the interaction between polyester fibers and disperse dyes, Sylic D2400 enables polyester dyeing at 100-120°C, helping textile mills achieve energy-saving dyeing without sacrificing color performance.
Sylic D2400 has strong affinity toward polyester fibers.
During the dyeing process, the auxiliary is quickly absorbed onto the fiber surface and forms a uniform auxiliary layer.
This layer gradually penetrates into the polyester structure, improving the accessibility of dye molecules.
The compact structure of polyester limits dye diffusion at low temperatures.
Sylic D2400 provides a swelling and plasticizing effect, which reduces the glass transition temperature (Tg) of polyester.
As a result:
This allows polyester dyeing to be performed effectively at 100-120°C instead of traditional 130°C conditions.
Sylic D2400 also improves the dispersion and solubilization of disperse dyes.
The auxiliary layer on the fiber surface can dissolve more dye molecules, increasing the dye concentration difference between the fiber surface and interior.
This accelerates:
resulting in more uniform coloration.
Product Name:
Sylic D2400 (CY-522) Low Temperature Dyeing Agent
Appearance:
Light yellow to yellow transparent liquid
pH Value (1% aqueous solution):
2.5-4.5
Ionicity:
Anionic / Nonionic
Sylic D2400 allows polyester dyeing at:
100-120°C
Compared with conventional 130°C dyeing:
Sylic D2400 provides excellent:
It helps prevent:
By controlling dye diffusion and absorption balance, Sylic D2400 provides:
Sylic D2400 is suitable for:
Typical applications:
1.0-3.5% (o.w.f)
Used as low temperature carrier and leveling agent.
0.3-1.0% (o.w.f)
Used for leveling improvement and migration control.
2-3% (o.w.f)
For 135°C horizontal stripe correction and defective fabric repair.
| Component | Dosage |
|---|---|
| Sylic D2400 (CY-522) | 2.0% (o.w.f) |
| HAC | 1 g/L |
| Disperse Black ECT | 4.0% (o.w.f) |
| High temperature leveling agent | 1 g/L |
| Component | Dosage |
|---|---|
| HAC | 1 g/L |
| Disperse Black ECT | 4.0% (o.w.f) |
| High temperature leveling agent | 1 g/L |
As textile manufacturers continue to focus on energy saving, cost reduction, and sustainable production, low temperature polyester dyeing technology provides an effective alternative to traditional high-temperature dyeing processes.
Sylic D2400 (CY-522) Low Temperature Dyeing Agent improves polyester dye diffusion, enhances leveling performance, and enables efficient dyeing at lower temperatures.
By reducing dyeing temperature while maintaining excellent color quality, Sylic D2400 helps textile mills achieve more sustainable and reliable polyester dyeing processes.
Keywords:
Low Temperature Dyeing Agent, Polyester Low Temperature Dyeing, Polyester Dyeing Carrier, Energy Saving Textile Dyeing, Disperse Dye Leveling Agent, Polyester Dyeing Auxiliary, Polyester Dyeing Technology, Sustainable Textile Processing, Sylic D2400, CY-522
