Semi-dull Cationic Dyeable Polyester Chip for CDP Yarn Spinning
Bright CDP or ECDP for Cationic Fiber BCF Yarn Melt/Extrusion Spinning
Description: Generally speaking, Cationic Dyeable Polyester Chip can be divided into two types, CDP and ECDP.
CDP refers to the high-pressure cationic-dyeable polyester chip, and the dyeing conditions are 120-130℃ under 0.13MPa.
ECDP is the standard pressure chip, and the dyeing condition is 95-100℃, which can significantly reduce production costs.
Characteristic: For CDP, the advantage is that CDP fiber has a higher colorfastness, brighter color, and is easier to obtain the effect of cross-dye, white space, and variant dye. The disadvantage is that the dyeing process requires high temperatures and high pressure. And CDP fiber can not be blended with other synthetic fibers.
ECDP is developed to address the shortcomings of CDP while maintaining its strength. So we can say that ECDP is a modified form of CDP. Especially, ECDP fiber can be blended with wool and silk.
Our company can provide Cationic Dyeable Polyester Chips with Na (active material) contents of 3%, 4.5%, 6%, and 13%. ECDP chip is the raw material for cationic yarn, BCF yarn, and even sea-island yarn.
The above picture compares Cationic Fabric made from different PET chips. From it, we can clearly see the fabric made from our polymer has the best dyeing effect.
Parameters Table: (SD CDP)
| ITEMS | UNIT | TEST VALUE |
| INTRINSIC VISCOSITY | dl/g | 0.579 |
| MELTING POINT | ℃ | 251 |
| -COOH END GROUP | mol/t | 31.25 |
| COLOR (b VALUE) | 5.38 | |
| WATER CONTENT | % | 0.065 |
| AGGLOMERATE PARTICLE | pce/mg | 0.5 |
| DEG CONTENT | % | 3.6 |
| TIO2 CONTENT | % | 0.3 |
| Na Content | % | 2.3 |
Parameters Table: (SD ECDP)
(Through Batch/Semi-continuous Production Line)
| Items | Unit | Test Result | |
| Intrinsic Viscosity | dl/g | 0.621 | |
| Melting Point | ℃ | 247.7 | |
| Color Value | L | 75.68 | |
| b | 1.4 | ||
| Carboxyl End Groups (COOH) | mol/t | 30 | |
| Moisture Content | % | 0.05 | |
| TiO2 Content | % | 0.328 | |
| Diethylene Glycol (DEG) | % | 2.94 | |
| Na Content | % | 3.8% | |
(Through Continuous Production Line)
| ITEMS | UNIT | TEST VALUE | |||||
| INTRINSIC VISCOSITY (60:40, Phenol: TCE @25℃) |
dl/g | 0.53 | 0.57 | 0.58 | 0.51 | 0.40 | |
| MELTING POINT | ℃ | 245 | 245 | 240 | 240 | 228 | |
| -COOH END GROUP | mol/t | 20.7 | 5.69 | 3.7 | 6.02 | 6.7 | |
| COLOR VALUE | b | 5.20 | 3.5 | 3.5 | 5.0 | 1.9 | |
| L | 58.24 | 68.58 | 61.62 | 58.19 | 65.5 | ||
| WATER CONTENT | % | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| DEG CONTENT | % | 3.56 | 3.88 | 4.08 | 4.35 | 7.35 | |
| Salt CONTENT | % | 2.3 | 3.0 | 4.5 | 6.0 | 13 | |
If you need a different salt content (also referred to as active material, Na Content), we can customize the type according to your requirements.
Packaging:
We offer international-standard packaging for improved storage, safety, and handling.
*HDPE Plastic Bags – 25 kg Bag packing
*Jumbo Bags – 1000 kgs Jumbo bags packing
All the above-listed packaging includes a moisture-proof liner, and customized packing is available upon request.
If you want to know more information, please click https://www.polyestermfg.com/portfolio-items/easy-cationic-dyeable-polyester-chip/