A Guide for Color Assessment Cabinet GT-D08

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A Guide for Color Assessment Cabinet GT-D08 Dec 06, 2025

A Guide for Color Assessment Cabinet GT-D08

In the textile industry, color consistency has always been one of the most difficult factors to control, yet it is also one of the key elements that most affects the final quality.

Colour matching cabinet: Colors appear differently under different lighting sources. To avoid/reduce the assessment error when performing color contrast, we can use a Light Booth / Viewing Booth / Color Light Box to simulate different light sources to obtain an objective assessment of color and color difference, anytime, anywhere.

I. The Importance of the Color Assessment Cabinet

Let’s begin with the simplest everyday example: when we go to a store to buy clothes, the special lighting in the store often makes a garment look very beautiful, leading us to purchase it. However, when we wear it outside or go back home, the visual impression greatly declines, and we might even feel that the color does not match and refuse to wear it again. The reason behind this is that under different lighting sources, the human eye perceives the color of the same object differently, which is called the metamerism effect.

Metamerism is a common pain point in the textile industry due to factors including:

Different light sources have different spectral compositions, which affect human color perception;

Even slight differences in dye formulations may lead to different visual results under various lighting;

Unstable dyeing control between production batches further increases the risk of color deviation;

Natural light cannot remain stable for long, and weather and time changes will affect comparison results.

For these reasons, professional environments must use equipment capable of simulating multiple light sources while ensuring long-term stability of the color observation environment—a color matching light box. It eliminates the influence of external conditions, allowing consistent color judgments across different times, personnel, and locations, thus ensuring stability in quality control.

II. Features of GT-D08 Color Assessment Cabinet

Color assessment cabinets render color more accurately. With 6 different light sources (D65, TL84, CWF, F, UV, U30), they can detect metamerism.

Light source	Color viewing booths Application	Color temperature(K)	Power(W)
D65	International Standards Artificial Daylight	6500	18
TL84	Applied to stores in Europe, Japan and china	4000	18
CWF	(Coll White Fluorescent) American standard	4150	18
F	“Sun-Setting Light Yellow” incandescent light source (imitation of sunset)	2700	40
A	Spotlight to showcase, American Standard	2856	60
UV	Viewing under ultraviolet light to detect and evaluate optical brighteners or fluorescent pigments	Wavelength: 365nm	20
U30	Warm White fluorescent, American Standard	3000	18

The combination of multiple light sources simulates various real application scenarios—from natural light to store lighting to home environments—allowing detection of whether materials exhibit metamerism and improving assessment accuracy.

Colour matching light box: Meets or exceeds major international standards for visual color evaluation including ASTM D1729, ISO 3664, DIN, ANSI, and BSI.

Easy to operate using individual switches for each light source.

Elapsed time meter for tracking optimal lamp replacement.

Light sources are available to alternate.

No warm-up time or flickering, which ensures quick and reliable color judgment.

Economic power consumption and low heat generation for high light efficiency.

III. Light box for textile Operating Method

The selection of various light sources in the Light box for textile is controlled through the touch buttons corresponding to the light source names on the cabinet, enabling rapid switching and quick activation. Place the two items requiring color deviation comparison in symmetrical positions at the center of the cabinet. As long as the angle between the human eye or the light and the tested object is 45 degrees, it is the best observation angle.

The GT-D08 light box can also record the usage time of each lamp. After a lamp has been used for more than 2000 hours, it must be replaced with a new one to avoid aging effects that may influence visual color observation.

IV. Application Industries

The Colour matching equipment is mainly used in color management in four major industries: textiles, garments, and dyeing; plastics and electronic products; paints and inks; printing and paper manufacturing. It is also used in emerging fields such as camera inspection, photography, and laboratory instruments for educational institutions.

V. Maintenance

If the inner wall panels of the D65 TL84 UV light box are stained, use a clean soft cloth dipped in a low-concentration alkaline detergent to wipe them clean. Keep the inner frame clean and dry to avoid damaging the light-absorbing coating on the inner wall caused by test objects, which would affect color matching performance.

If the inner panel is damaged and can no longer absorb light effectively, it should be replaced. Lamps should also be replaced when they exceed their usage time and show blackening and aging at both ends.

Notizia

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Comprensione della norma ISO 105 C06 e del tester di solidità al lavaggio