Liquid Masterbatch

Liquid Masterbatch is a plastic colorant that disperses pigments and additives in a liquid dispersion medium. Even when addition is 1% or lower, it features superior distribution performance (can color evenly) due to its liquid form. It is effective for light colors and transparent colors, and also contributes to reducing costs and inventory, and maintaining properties.
Toyocolor offers Liquid Masterbatch in various color variations, which conforms with the standards of the Japan Hygienic Olefin and Styrene Plastics Association (JHOSPA) (POPL: PET resin) and the US Food and Drug Administration (FDA).

Liquid Masterbatch

Target Resins

Wide color variations are available.

Target resin PET, PET-G, PC, etc.
Addition amount (ratio to resin) until 1.0%
Recommended molding method Extrusion molding, injection molding, etc.
Wide color variations are available.

Comparison of color uniformity with solid masterbatch

There are no shot variability and uneven color, offering stable quality.

There are no shot variability and uneven color, offering stable quality.  Confirmation of variability and uneven color among shots of injection molding plates (5 shots)
Confirmation of variability and uneven color among shots of injection molding plates (5 shots)

Influence on physical properties of PET and PC resin

Machine properties will be maintained due to the low addition.

IV retention rate (PET resin)

  Solid Masterbatch Liquid masterbatch
Addition amount (%) 5.0 0.1 0.25 0.5 0.75 1
IV retention rate (%) 89 100 99 98 95 94

*The figure shows the percentage compared to the retention rate of PET resin alone (%)

Mechanical properties (PC resin)

    Solid Masterbatch Liquid Masterbatch
Mechanical properties PC natural 3.3% 0.1% 0.5%
Tensile yield stress (Mpa) 60.8 60.8 61.0 62.2
Tensile breaking stress (Mpa) 71.0 73.1 70.7 71.9
Flexural strength (Mpa) 101.0 103.6 101.3 103.0
Flexural modulus (Mpa) 2318 2319 2319 2341
Charpy impact strength (kJ/m2) 64.8 64.2 65.3 64.0
Deflection temperature under load (°C) 127.6 126.4 125.6 124.3

*The above data are the mesured value but not our guaranteed performance.

Pearl pigment liquid masterbatch

This product maintains a large grain diameter and provides the intense brightness inherent in pearls, which was not possible with solid masterbatches.

パール顔料マスターバッチ(顕微鏡写真)平均粒径=69μm,最大粒径=108μm
Pearl pigment solid masterbatch (x100)
Average particle diameter = 69 μm
maximum particle size = 108 μm
Pearl pigment liquid masterbatch(顕微鏡写真)平均粒径=107μm,最大粒径=178μm
Pearl pigment liquid masterbatch (x100)
Average particle diameter = 107 μm
maximum particle size = 178 μm

*The above data are the mesured value but not our guaranteed performance.

Example of use

Injection molded PC plate
Injection molded PC plate
Blow molded PET bottle (0.2% added)
Blow molded PET bottle (0.2% added)

Inquiries

Colorants Sales Division
Toyocolor Co., Ltd.
TEL : +81-3-3272-0834