Ecdp (Easy Dyeing Cationic)
| SPECIFICATIONS |
30~150D/24~72F |
| Description |
Regular cationic dyeing temperature >=120degree.but this yarn dyeing between 90-95 degree. |
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morever it has the advantage of deep absorption and high fastness |
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Low dyeing temperature, can interweave with cotton wool , |
We are manufacturer in China specialized in producing special,functional and recycled polyester and nylon yarns .
| ECO-FRIENDLY SERIES |
FINE DENIER YARNS |
| 1.RECYCLED FDY/DTY/POY/ITY |
1.VIRGIN RAW WHITE |
| 2. Biodegradable YARN/Low Melting |
2.DOPE DYED BLACK |
| 3.ANTIMONY-FREE YARNS/Graphene yarn FDY/Aerogel yarn |
3.DOPE DYED COLORS |
| 4.ECDP-EASY DYEING CATIONIC |
4.OPTICAL WHITE/WHITENING |
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| FUNCTIONAL YARNS |
ELASTIC YARN |
| 1. FLAME-RETARDANT YARN |
1. SPH |
| 2.ANTIBACTERIAL YARN |
2.CEY |
| 3.COOL JADE YARN |
3.T300/T400 |
| 4.KEEP WARM YARN |
4.PBT/PTT FDY |
The advantages of low-temperature dyeing polyester yarn include environmental protection, energy saving, and reduced production costs, while the disadvantages mainly include dyeing uniformity and color durability
The principle of low-temperature dyeing of polyester mainly relies on raising the temperature or using chemicals to expand the intermolecular space of the polymer, so that the dye molecules can be stuffed and clamped within the gap of the "high polymer molecule" to achieve the purpose of dyeing
Due to the lack of active functional groups that can bind to dyes in its molecular structure, and the high crystallinity and compact structure, polyester fibers only have small voids in the fiber, which makes it difficult for dye molecules to enter the fiber, making it difficult to dyeTo address this issue, researchers have explored a variety of methods to achieve low-temperature dyeing of polyester, including the use of specific dyes and additives, as well as optimizing dyeing conditionsFor example, by using esters such as diethyl terephthalate as additives, polyester dyeing can be achieved at lower temperatures, while maintaining a color depth similar to that of high-temperature and high-pressure dyeing, and there is no negative impact on the strength, color fastness, and color light of the fabricThese methods allow the dye to be absorbed more effectively by polyester fibers by improving the dispersion of the dye and the permeability of the fiber
In addition, the dyeing process of polyester also includes the movement of the dye in the liquid, and the higher the temperature, the faster the movement of the dye moleculesThe dyeing process of dyes is divided into two stages: attachment and infiltrationIn the first stage, the dye molecules attach to the fibropolymer gap, while in the second stage, the dye molecules infiltrate and fix in the fibropolymer interspace, thus completing the stainingThis process ensures that the dye is evenly distributed on the polyester fibers, while ensuring the durability of the dye and the stability of the color
In summary, the principle of low-temperature dyeing of polyester is to improve the dispersion of dyes and the permeability of fibers by increasing the temperature or using specific chemical additives, so that the dyes can be absorbed by polyester fibers more effectively, so as to achieve dyeing under low temperature conditions
We Can do customized special yarns Always at your service.
Kero Wang
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