Email : wzdarong2@thinktester.com darong@thinktester.com WhatsApp：+86 15258750702

What Is a Color Fastness Testing Instrument & Its Core Testing Principle

Release time:

2026-07-09

Color fastness testing instruments are not single standalone machines, but a full suite of testing devices designed for diverse simulation scenarios

Color fastness testing instruments are not single standalone machines, but a full suite of testing devices designed for diverse simulation scenarios. They replicate real-life usage conditions of textiles to measure the binding stability of fabric dyes, complying with globally recognised standards including GB, ISO and AATCC.
Real-scenario simulation
Equipped with precise temperature control, friction, light irradiation and liquid soaking modules, the equipment accurately reproduces daily wear conditions such as washing, perspiration exposure, sunlight ageing, dry & wet rubbing, and seawater immersion. For instance, washing fastness testers deliver adjustable temperature ranging from 0℃ to 98℃ with constant stirring to mimic laundry agitation, while perspiration testers recreate acidic and alkaline sweat environments matching human skin secretions.
Standardised grading system
Post-test fabric samples are compared with original untreated specimens and standard adjacent fabrics. Grey scale cards or digital spectrophotometric sensors are used to assign a color fastness grade from Level 1 to Level 5 — Level 5 represents zero colour transfer/fading, whereas Level 1 indicates severe dye bleeding. This digitalised assessment eliminates subjective errors caused by manual visual judgement.

What Is a Color Fastness Testing Instrument & Its Core Testing Principle

In the high-tech enterprise recognition organized by the Zhejiang Provincial Department of Science and Technology, Wenzhou Darong Textile Instrument Co., Ltd.

2021-11-12

Upgraded national layout, Darong Textile Instrument's authorized service stations cover more than 30 cities

To further enhance the customer service experience, Wenzhou Darong Textile Instrument Co., Ltd. announced that its authorized service stations have been established in more than 30 core cities across the country

2022-01-10

Darong Textile Instrument takes the lead in drafting four national standards, leading the industry's technological innovation

Recently, Wenzhou Darong Textile Instrument Co., Ltd., with its strong technical research and development capabilities, successfully led the drafting of four national standards in the field of textile testing instruments.

2022-07-28

Color Fastness Tester: Core Equipment for Textile Quality Inspection

Color fastness is a vital indicator to evaluate textile quality in the textile, apparel and printing & dyeing industries

2026-06-08

Learn about Color Fastness Tester & Its Testing Principles

Designed for fabrics, leathers and accessories, the color fastness tester integrates mechanical drive

2026-06-08

Conventional Type Testing Instrument: Basic Workhorse for Industrial Quality Control

Conventional type testing instruments are standard testing equipment widely used across manufacturing sectors

2026-06-08