https://www.avient.com/news/new-black-colorants-available-avient-help-achieve-high-jetness-polyester-textiles
New Renol™ Black Colorants Deep Black provide intense black shades with excellent light fastness to polyester textiles.
In addition to a high level of jetness, deep black colorants require very high light fastness (resistance to fading and discoloration when exposed to light) for automotive applications, robust wash fastness (resistance to frequent washing) for sportswear, and resistance to fading from frequent use for fashion and home textiles.
Our new deep black colorants are formulated to help meet all of these needs and can be customized to achieve a specified deep black intensity in virgin and recycled polyester grades, making them suitable for different textile applications.”
https://www.avient.com/sites/default/files/2025-02/Mevopur White Formulation for PCR Well Plates - Case Study_0.pdf
LABORATORY EQUIPMENT
MANUFACTURER
P C R W E L L P L A T E S
• Very high level of TiO2 to prevent “cross-talk” between the wells
during the qPCR fluorescence testing procedure
• Minimized background phosphorescence caused by
agglomeration of TiO2 and/or oxidized (stressed) polystyrene
• Preservation of polystyrene grade properties
• Change control of formulation and manufacturing process
• Robust product quality from batch to batch
• Developed optimally dispersed, ready-to-use
white formulation that maintains adequate signal
transmission, as well as minimizing “cross-talk”
and background phosphorescence
• Optimized the use of general purpose polystyrene
(GPPS) for a good balance between melt flow
and other physical properties, such as stiffness
• Provided comprehensive change control of raw
materials and formulation, with a robust
manufacturing process and quality control under
a third party ISO 13485:2016 certified QMS
Mevopur Healthcare Colorants and Formulations
– pre-colored solution
WHY AVIENT?
https://www.avient.com/resources/safety-data-sheets?page=4430
OPAQUE WHITE PC V2
TR GREY PC SM
LIGHT STABLE PINK
https://www.avient.com/sites/default/files/2021-06/edgetek-et8900-cr-technical-bulletin.pdf
Developed to meet these challenges, Edgetek
ET8900 CR thermoplastics show improved chemical
resistance to common consumer disinfectants
compared to PC/ABS, PC/PET and PC/PBT.
Available
in unfilled, impact-modified and flame-retardant
grades, these formulations deliver comparable
physical and mechanical performance to
conventional PC blends.
Improved Chemical Resistance
$$$$
$$$
$$
$
FR
PC/ABS
FR
PC/PET
FR
PC/PBT
Edgetek™
CR
https://www.avient.com/resources/safety-data-sheets?page=5583
PET WHITE W OB
UV TRANS LIGHT GREY PC
CAST GREY LIGHT
https://www.avient.com/sites/default/files/2020-09/lubrione-processing-guide.pdf
BASE
RESIN PPA PC PSU PES PPS
CO-
POLYMER
ACETAL
PEEK PA
Barrel Temperatures* °F (°C)
Rear Zone 550–580
(288–305)
520–560
(271–293)
600–640
(316–338)
630–660
(332–338)
550–580
(288–304)
350–370
(177–188)
660–700
(349–371)
440–490
(227–254)
Center Zone 560–600
(293–316)
530–570
(277–299)
620–670
(327–354)
650–680
(343–360)
560–615
(293–324)
380–390
(193–200)
700–730
(371–388)
470–510
(243–266)
Front Zone 580–620
(304–327)
550–580
(288–305)
630–680
(332–360)
670–730
(354–388)
590–630
(310–332)
390–430
(200–221)
720–750
(382–400)
490–540
(254–282)
Nozzle 575–615
(302–324)
550–600
(288–316)
630–680
(332–360)
680–700
(360–371)
600–625
(316–330)
380–415
(193–213)
720–750
(382–400)
520–570
(271–300)
Melt
Temperature
575–615
(302–324)
560–600
(293–316)
625–675
(330–358)
650–710
(343–377)
600–625
(316–330)
370–410
(188–210)
670–740
(354–393)
520–570
(271–300)
Mold
Temperature
250–300
(121–150)
175–240
(80–116)
190–300
(88–150)
225–325
(107–164)
250–325
(121–164)
150–225
(66–107)
290–375
(143–190)
150–200
(66–93)
Pack & Hold
Pressure
50%–75%
of Injection Pressure
Injection
Velocity
in/s
1.0–3.0
Back Pressure
psi 50
Screw Speed
rpm 50–90
Drying
Parameters
°F (°C)
6 hrs @ 175
(80)
4 hrs @ 250
(121)
4 hrs @ 275
(135)
4 hrs @ 300
(150)
4 hrs @ 250
(121)
2 hrs @ 200
(93)
3 hrs @ 300
(150)
4 hrs @ 180
(82)
Allowable
Moisture
%
< 0.05 < 0.02 < 0.02 < 0.04 < 0.02 0.15–0.20 < 0.02 0.10–0.20
Cushion
in 0.125–0.250
Screw
Compression
Ratio
2.5:1–3.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1
Nozzle
Type
General
General
General
General
General
General
General
Reverse
Taper
Clamp
Pressure 5–6 Tons/in2 of projected area of cavities and runner system
* Barrel temperatures should be elevated for compounds designed for electrical insulative properties.
MOLD DESIGN RECOMMENDATIONS
Gates
• Many different types of gates can be used such as pin, fan, tunnel, tab and edge gates.
Cut vent depths to:
- PPA Compounds: 0.0015"–0.0025" depth and 0.250" width
- PC Compounds: 0.002"–0.004" depth and 0.250" width
- PSU Compounds: 0.003"–0.004" depth and 0.250" width
- PES Compounds: 0.003"–0.004" depth and 0.250" width
- PPS Compounds: 0.002"–0.003" depth and 0.250" width
- Acetal Compounds: 0.0015" minimum depth and 0.250" width
- PEEK Compounds: 0.002"–0.004" depth and 0.250" width
- Nylon Compounds: 0.002" minimum depth and 0.250" width
• Increase vent depth to 0.060" (1.5mm) at 0.250" (4.0mm) away from the cavity
and vent to atmosphere.
https://www.avient.com/sites/default/files/2020-09/edgetek-processing-guide.pdf
Base Resin PPA PC PSU PES PPS
Co-
polymer
Acetal
PEEK PA
Barrel Temperatures* °F (°C)
Rear Zone 550–580
(288–305)
550–590
(288–310)
600–640
(316–338)
630–660
(332–338)
550–580
(288–304)
350–370
(177–188)
660–700
(349–371)
440–490
(227–254)
Center Zone 560–600
(293–316)
570–600
(300–316)
620–670
(327–354)
650–680
(343–360)
560–615
(293–324)
380–390
(193–200)
700–730
(371–388)
470–510
(243–266)
Front Zone 580–620
(304–327)
580–630
(304–322)
630–680
(332–360)
670–730
(354–388)
590–630
(310–332)
390–430
(200–221)
720–750
(382–400)
490–540
(254–282)
Nozzle 575–615
(302–324)
580–630
(304–322)
630–680
(332–360)
680–700
(360–371)
600–625
(316–330)
380–415
(193–213)
720–750
(382–400)
520–570
(271–300)
Melt
Temperature
575–615
(302–324)
580–625
(304–330)
625–675
(330–358)
650–710
(343–377)
600–625
(316–330)
370–410
(188–210)
670–740
(354–393)
520–570
(271–300)
Mold
Temperature
250–300
(121–150)
175–240
(80–116)
190–300
(88–150)
225–325
(107–164)
250–325
(121–164)
190–250
(88–121)
290–375
(143–190)
150–200
(66–93)
Pack & Hold
Pressure
50%–75%
of Injection Pressure
Injection
Velocity
in/s
1.0–3.0
Back Pressure
psi 50
Screw Speed
rpm 50–90
Drying
Parameters
°F (°C)
6 hrs @ 175
(80)
4 hrs @ 250
(121)
4 hrs @ 275
(135)
4 hrs @ 250
(121)
3 hrs @ 300
(150)
2 hrs @ 200
(93)
3 hrs @ 275
(135)
4 hrs @ 180
(82)
Cushion
in 0.125–0.250
Screw
Compression
Ratio
2.5:1–3.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1
Nozzle
Type
General
General
General
General
General
General
General
Reverse
Taper
Clamp
Pressure 5–6 Tons/in2 of projected area of cavities and runner system
* Barrel temperatures should be elevated for compounds designed for electrical insulative properties.
MOLD DESIGN RECOMMENDATIONS
Gates
• Many different types of gates can be used such as pin, fan, tunnel, tab and edge gates.
Cut vent depths to:
- PPA Compounds: 0.0015"–0.0025" depth and 0.250" width
- PC Compounds: 0.002"–0.004" depth and 0.250" width
- PSU Compounds: 0.003"–0.004" depth and 0.250" width
- PES Compounds: 0.003"–0.004" depth and 0.250" width
- PPS Compounds: 0.002"–0.003" depth and 0.250" width
- Acetal Compounds: 0.0015" minimum depth and 0.250" width
- PEEK Compounds: 0.002"–0.004" depth and 0.250" width
- Nylon Compounds: 0.002" minimum depth and 0.250" width
• Increase vent depth to 0.060" (1.5mm) at 0.250" (4.0mm) away from the cavity
and vent to atmosphere.
https://www.avient.com/sites/default/files/2023-09/Cesa Fiber Additives for Heat Preservation Product Bulletin_A4.pdf
Photothermally active particles added to the fibers
help transform the energy of invisible light rays into
heat for enhanced comfort in cold temperatures.
When exposed to a light source for 10 minutes, this
new generation of heat-preservation additives can
provide a temperature increase from 6°C to 12°C for
PET and PA fibers based on different let-down-ratio
and textile structure.
KEY CHARACTERISTICS
• Offers reheating property for synthetic fibers
with specialty formulations
• Provides a temperature increase of up to 12°C
when exposed to a light source for 10 minutes
• Good spinnability
• Lower impact on the color
APPLICATIONS
Cesa Fiber Additives are intended for use in:
• Clothing: hoodie, sweater, jacket, ski clothing,
thermal underwear, etc
https://www.avient.com/sites/default/files/2022-04/Sustainable Material Answers_ Recycled PET 2022.pdf
Another color-related challenge is the multitude of different color streams of
recycled PET, which can limit the uses for recycled colored PET.
This predictive technology maximizes
the use of different color streams and reduces waste.
Manufacturers using rPET require different properties based on their specific
application, such as certain colors, stiffness and strength.
https://www.avient.com/news/specialty-polymer-solutions-avient-improved-durability-and-sustainability-healthcare-products-pharmapack-2023
The TPEs are formulated without animal derivatives and are suitable for different Shore A durometer ranges.
The new range contains shades commonly used in medical devices: yellow, mid and dark grey, mid green, light and dark blue, white, and black.
Three standard white colorants in bio-polyethylene are also available for pharmaceutical packaging manufacturers.