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Plastic Product Color Detection

Color detection of plastic products is an important part of quality control in the plastics industry. Whether it is mobile phone cases and home appliance casings in the electronic field, or any accessories in toy manufacturing, color consistency of different batches of plastic products is crucial to brand image and product quality. Since plastic products may be molded under different production conditions (such as temperature, pressure, cooling speed, etc.), these conditions may affect the final color . 

 Using high-precision color measurement equipment such as 3nh spectrophotometers and online non-contact gloss meters , manufacturers can monitor color changes in real time during the production process to ensure that the color of each batch of products is consistent. These devices can detect extremely small color deviations, thereby helping manufacturers to adjust production parameters in a timely manner, avoid color inconsistencies, and ensure the market competitiveness of products.

Guide to Selecting Plastic Color Difference Meters: A Practical Comparison of Accuracy and Functions

In today’s highly competitive plastic product market, color consistency has become a key factor determining product value. Whether for auto parts, electronic casings or daily consumer goods, even slight color differences may lead to customer returns, damage to brand reputation, or even the scrapping of entire batches of products. With continuous technological innovation and localized service advantages, 3nh has become the preferred brand for color control in the plastic industry. This article will conduct an in-depth analysis of 3nh’s flagship models through laboratory test data and real-scenario applications, helping you accurately match your production needs.

Plastic Colorimeter Accuracy Comparison 

Threenh TS7600: The measurement repeatability can reach ΔE < 0.03, and the inter-instrument consistency is ΔE < 0.15, meeting international standards and ensuring high comparability of data across different laboratories. 

Threenh CR9: The repeatability accuracy (ΔEab) is stably controlled within 0.03, and the inter-instrument difference (inter-device difference) is ΔEab ≤ 0.3, which can ensure highly unified data when multiple instruments work together. 

Threenh NR110: The repeatability performance is ΔE < 0.08, which can ensure the measurement results are valuable for reference and reduce the risk of misjudgment. 

Threenh TS8510: The repeatability of reflective chromaticity value is ΔEab ≤ 0.018, the transmissive chromaticity value is ΔEab ≤ 0.05, and the inter-instrument difference ΔE*ab is controlled within 0.18, with stable and reliable data. 

Threenh NH310: The standard deviation of repeat accuracy ΔE is 0.1, fully complying with CIE (International Commission on Illumination) standards and national standards.

Plastic Colorimeter Function Comparison 

Threenh TS7600: In addition to color difference measurement, it can conduct in-depth analysis of professional indicators such as yellowness, whiteness, color strength, yellowing index, staining fastness, and metamerism index. It features dual reflection/transmission modes, and supports functions including user permission management, massive data storage, and automatic calibration tracking, making it suitable for strict quality management systems. 

Threenh CR9: Integrates the functions of a spectrophotometric color difference meter and a portable spectrophotometric color checker. It has an innovative "color card matching function" that can quickly search the built-in massive color card database and display the closest standard color card number on the screen. Combined with the SQCX color quality control software and mobile APP, it enables efficient quality monitoring, color data management, and synchronization. 

Threenh NR110: Adopts a D/8 structure + dual SCI/SCE modes + dual light sources (D65/A), suitable for various materials such as plastics, coatings, and textiles. It has a built-in statistical analysis function (e.g., average, variance), allowing data processing without relying on a computer. 

Threenh TS8510: Supports multiple color scale standards, including CIE Lab, Lch, XYZ, and Yxy. It is equipped with a 10.5-inch independent rotatable tablet, enabling convenient and fast operation. 

Threenh CR-10: Equipped with an innovative color card matching engine, it can complete measurement and color card matching with one click. It has a high-precision optical system that can capture real color data and quickly match the closest color number through a large built-in standard color card library. It can measure various color indicators such as CIE-Lab, CIE-LCh, XYZ, Yxy, and RGB, and can also measure whiteness, yellowness, staining fastness, and color change fastness (some indicators are implemented through a host computer). 

Threenh NH310: Comes with standard PC data management software, enabling seamless connection between the instrument and the computer. It is suitable for internal and external color evaluation and data control within enterprises.


If extremely high accuracy is required—such as in scenarios involving laboratory standards, R&D, and export certification—the 3nh TS7600 is an excellent choice. For applications needing color card matching functionality, both the 3nh CR9 and 3nh CR-10 can meet the demand. Among them, the CR9 has advantages in portability and data management, while the CR-10 offers a more comprehensive range of measurement indicators. For daily quality control of plastic products, both the 3nh NR110 and TS8510 are competent. The former has balanced functions, and the latter excels in the convenience of its operation interface.

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