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 condition is at 120-130℃ under 0.13MPa.
ECDP is the standard pressure chip, and the dyeing condition is at 95-100℃, which can significantly decrease the production cost.
Characteristic: For CDP, the advantage is that CDP fiber has a higher colorfastness, brighter color, and easy to obtain the effect of cross-dye, white space, and variant dye. The disadvantage is that the dyeing process needs to be done at high temperatures and under high pressure. And CDP fiber can not be blended with other synthetic fibers.
ECDP is developed to solve the defect of CDP and also maintain the strength of CDP. So we can say, ECDP is the modified type of CDP. Especially ECDP fiber can be blended with wool and silk.
Our company can provide Cationic Dyeable Polyester Chips with Na(active material) content of 3%, 4.5%, 6% and 13%. ECDP chip is the raw material for cationic yarn, BCF yarn, and even sea-island yarn.

Cationic Fabric

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: (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: (ECDP)

(Through Batch/Semi-continuous Production Line)

Items Unit Test Result
Intrinsic Viscosity dl/g 0.603
Melting Point 248
  Color Value L 58
b 5.89
Carboxyl End Groups (COOH) mol/t 4.56
Moisture Content % 0.065
Agglomerate Particle pce/mg 0.5
Diethylene Glycol (DEG) % 3.9
Na Content % 4.5%

(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

We can customize the type according to your requirements if you need different salt content (also referred to as active material, Na Content).

Packaging:
We offer international standard packaging for better storage, safety, and handling.
*HDPE Plastic Bags – 25 kgs Bag packing
*Jumbo Bags – 1000 kgs Jumbo bags packing
All the above-listed packaging is with moisture-proof liner inside and customized packing is available upon your request.

If you want to know more information, please click https://www.polyestermfg.com/portfolio-items/easy-cationic-dyeable-polyester-chip/