EXTRUTEX Long-Afterglow Luminous Color Masterbatch

1. Product Overview

Luminous masterbatch is a concentrated functional additive containing phosphorescent pigment dispersed in a polymer carrier. Unlike conventional color masterbatch, which primarily changes the visible color of a plastic product, luminous masterbatch gives the finished material the ability to absorb and store light energy and release it gradually in darkness.

EXTRUTEX Long-Afterglow Luminous Color Masterbatch is developed for plastic processors who want to manufacture glow-in-the-dark products without adding loose luminous powder directly into their production equipment.

The luminous pigment is treated and incorporated into the masterbatch during granulation. This helps integrate the powder into a more manageable granular material. When the masterbatch is properly matched with the base resin and evenly mixed, luminous particles can be distributed throughout the plastic matrix.

2. Product Specifications

The supplied information identifies the product content as 50%, but does not explicitly define the measurement basis. Confirm whether this represents luminous pigment loading before publishing it as a guaranteed 50% luminous powder concentration. No exact processing temperature or recommended addition ratio has been supplied.

3. How Long-Afterglow Masterbatch Works

Luminous masterbatch works through a light absorption and release process. When the finished plastic product is exposed to an appropriate light source, the luminous pigment absorbs energy. After the light source is removed, the stored energy is released gradually as visible light.

Light absorption

The product can absorb light from sunlight, fluorescent lamps, LED lighting and ultraviolet sources. According to the supplied information, approximately 10–20 minutes of light exposure is used as a charging reference. The actual charging result depends on light intensity, distance, spectrum and exposure conditions.

Energy storage

The luminous pigment stores energy during exposure. This process does not require a battery, electrical connection or external power supply inside the finished plastic product.

Gradual light release

When the product enters a dark environment, the stored energy is gradually released as visible afterglow. The brightness naturally decreases over time. The duration and visibility depend on the luminous pigment, concentration, product thickness and surrounding conditions.

Repeated charging cycles

The luminous effect can be activated repeatedly through further light exposure. The product is designed for repeated light absorption and release rather than one-time use. Actual long-term performance should be evaluated according to the finished product's service conditions.

4. Masterbatch Granules Compared with Loose Luminous Powder

Directly adding luminous powder to plastic resin can create difficulties during material preparation and processing. Fine powder may become airborne, form agglomerates or distribute unevenly through the polymer.

EXTRUTEX luminous masterbatch incorporates treated luminous pigment into polymer granules. This provides a more convenient material format for controlled feeding and blending with compatible plastic pellets.

5. Main Product Advantages

6. Carrier Options and Polymer Compatibility

Carrier selection is an important part of luminous masterbatch performance. The carrier should be compatible with the base resin used by the customer. A suitable carrier helps the masterbatch blend into the polymer and supports stable processing and pigment distribution.

The listed carriers represent formulation options, not a guarantee that one masterbatch grade is suitable for every polymer. Customers should specify the exact resin grade and processing conditions when requesting a quotation or sample.

7. Applications Across Plastic Manufacturing

Injection molding

Injection molding is suitable for producing complex luminous plastic components with defined shapes and dimensions. Potential products include decorative accessories, consumer product components, toys, stationery, household products and visibility-related parts.

Film blowing

Luminous masterbatch can be evaluated for compatible PE film-blowing applications. It may be used to develop films with a glow-in-the-dark effect for decorative, identification or specialty packaging purposes. Film transparency, thickness, pigment distribution and mechanical performance should be checked during development.

Plastic extrusion

Extrusion can produce continuous luminous profiles, strips, tubes and other plastic products. Consistent feeding and suitable temperature control help maintain a uniform appearance along the production length.

Calendering and casting

Selected luminous formulations may be used in calendered or cast plastic products. The formulation should be evaluated for dispersion, surface quality and compatibility with the processing system.

Filament and fiber production

Luminous masterbatch may be considered for selected filament or fiber applications when the carrier and pigment system are suitable. The processing team should evaluate drawability, filament consistency, pigment distribution and the effect on finished-product properties.

Blow molding

Compatible formulations may be evaluated for hollow plastic products manufactured through blow molding. Wall thickness and pigment distribution are important factors when assessing luminous performance.

8. Potential Finished-Product Applications

9. Processing and Material Preparation

EXTRUTEX luminous masterbatch is designed to be mixed with compatible plastic resin pellets before processing. The exact feeding method and addition ratio depend on the carrier, base polymer, product design and required luminous effect.

Material preparation

1. Identify the base polymer and confirm the matching masterbatch carrier.
2. Check the resin and masterbatch condition before production.
3. Follow the base resin supplier's moisture-control and drying recommendations.
4. Measure the masterbatch and base resin according to the approved trial formulation.
5. Blend the materials evenly before feeding them into the production equipment.
6. Use a processing temperature profile suitable for both the base resin and luminous formulation.
7. Produce trial samples and inspect dispersion, surface appearance and luminous performance.

Injection molding considerations

Stable material feeding, suitable melt temperature and consistent mold filling help achieve a uniform molded product. Inspect the finished part for pigment clusters, dark marks, streaks and differences in luminous brightness.

Film blowing considerations

Film applications require attention to melt stability, bubble stability, thickness uniformity and pigment dispersion. The selected masterbatch should be tested on the actual film line before commercial production.

Extrusion considerations

Screw design, mixing performance, residence time and temperature profile influence the distribution and condition of luminous pigment. Avoid unnecessary thermal exposure and verify the quality of the extruded product during trial runs.

10. Luminous Performance Evaluation

The luminous effect should be evaluated using a repeatable test procedure. Charging time alone does not define the brightness or duration of the finished product. Light intensity, light source, pigment loading, product thickness and background color can all influence the result.

For meaningful product evaluation, consider the following checks:

• Charging conditions: Record the light source, intensity, distance and exposure time.
• Initial brightness: Measure or compare the luminous output immediately after charging.
• Afterglow performance: Record brightness at defined time intervals after the light source is removed.
• Distribution: Check for bright spots, dark areas, streaks and visible pigment agglomeration.
• Product thickness: Compare samples with different wall or film thicknesses.
• Processing stability: Inspect samples produced under the intended processing temperature and residence time.
• Repeated charging: Repeat the charging and discharge test to evaluate consistency.

11. Storage and Handling

Store luminous masterbatch in suitable packaging and protect it from contamination, excessive moisture and unnecessary exposure to unsuitable storage conditions. Keep the material clean and follow the supplier's handling recommendations.

Although the masterbatch format reduces direct handling of loose luminous powder, normal plastic material handling precautions remain necessary. Consult the product's safety data sheet and technical data sheet for specific storage, handling and processing instructions.

12. Why Choose EXTRUTEX?

EXTRUTEX supports plastic manufacturers working with polymer processing materials, functional additives and extrusion applications. We focus on matching the material formulation with the customer's resin, production equipment and finished-product requirements.

• Multiple carrier options for different thermoplastic materials.
• Functional luminous masterbatch for glow-in-the-dark products.
• Granular material format for convenient production feeding.
• Formulation discussions based on injection molding, extrusion and film processing.
• Technical evaluation of dispersion and finished-product luminous performance.
• Customized material development according to application requirements.

EXTRUTEX product design, laboratory work and R&D are based in Austria, while manufacturing is carried out in China. Our approach combines engineering development with practical manufacturing experience in polymer processing.

13. Frequently Asked Questions

What is long-afterglow luminous masterbatch?

It is a functional plastic additive containing luminous pigment dispersed in a polymer carrier. The pigment absorbs light energy and gradually releases it as visible light when the finished product is placed in darkness.

How long does the material need to absorb light?

The supplied product information gives approximately 10–20 minutes as a charging reference. Actual charging performance depends on the light source, intensity, distance and exposure conditions.

Does luminous masterbatch need electricity?

No. The glow effect is produced by stored light energy released by the luminous pigment. The finished product does not need an electrical connection or battery to create this effect.

Can it be used with ABS and PP?

Yes, ABS and PP are among the listed carrier options. The correct formulation should be selected according to the base resin and processing requirements.

Can it be used for PE film blowing?

A suitable PE-carrier luminous masterbatch can be evaluated for film blowing. Film quality, dispersion, thickness and processing stability should be confirmed through production trials.

Can one grade work with ABS, PP, PE, PVC and TPU?

The supplied information lists several carrier options. This should be understood as a range of available formulations rather than proof that one grade is universally compatible with all these polymers. Select the carrier that matches the base resin.

What does the 50% content mean?

The supplied specification states 50% product content but does not define the measurement basis. Confirm whether this is the luminous pigment concentration before using it as a guaranteed active-pigment specification.

Can luminous masterbatch be used for injection molding and extrusion?

Yes. Injection molding and extrusion are listed processing methods. Film blowing, calendering, casting and other processes may also be considered with a suitable carrier and formulation.

Will the finished product glow evenly?

The masterbatch is designed to improve pigment dispersion and reduce agglomeration. Uniform results still depend on material compatibility, dosage, mixing, processing conditions and product geometry.

Can the luminous color be customized?

The supplied standard color is yellow-green. Other luminous color requirements can be discussed separately according to the pigment system and application.

14. Request a Luminous Masterbatch Specification

To identify the correct EXTRUTEX luminous masterbatch, provide the following information:

• Base resin: ABS, PP, PE, PVC, TPU, PC, PS or another polymer.
• Product application and finished-product dimensions.
• Processing method: injection molding, film blowing, extrusion or another process.
• Required luminous color and visual appearance.
• Target luminous brightness and afterglow performance.
• Any specific requirements for surface quality, flexibility or mechanical properties.