Guidelines for Handling Ink and Pigment Composition Analysis Reports
Date：2026-06-09 09:28:00 Classification
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Guidelines for Obtaining Ink and Pigment Composition Analysis Reports
I. Report Overview
An ink and pigment composition analysis report is a technical document issued after a systematic analysis of the composition, content, and characteristics of inks and pigments using chemical and physical testing methods. This report is widely used in product quality control, formula development, compliance verification, trade delivery, and technical dispute resolution.
II. Main Analytical Contents
| Analysis Categories | Specific Items
| Basic Components | Types and content of resin binders, pigments, solvents, and additives
| Pigment Analysis | Pigment types (organic/inorganic), chemical structure, color index
| Solvent Analysis | Types and content of volatile organic compounds (VOCs)
| Heavy Metal Detection | Lead, cadmium, mercury, hexavalent chromium, etc.
| Physical Properties | Viscosity, fineness, drying properties, gloss, weather resistance
| Safety Compliance | Compliance with standards such as RoHS, REACH, and GB 9685
III. Processing Procedures
1. Define Testing Needs
Determine Product Type (Ink/Pigment/Coating, etc.)
Determine Testing Purpose (R&D Reference/Export Certification/Quality Disputes)
Determine Implementation Standards (National Standard, Industry Standard, or Customer-Specified Standard)
2. Select a Testing Institution
Prioritize institutions with CMA (China Metrology Accreditation) and... CNAS (China National Accreditation Service for Conformity Assessment) accredited third-party organizations
Common choice: Dezewei Testing (CNAS registration number: L8083)
3. Sample preparation and submission
Sample quantity is usually 50–200g (depending on the testing items)
Provide product instructions, formula information (if any), and testing standard requirements.
4. Signing a testing agreement
Clearly define the testing items, cycle, fees, and number of reports.
5. Laboratory testing
The cycle is generally 5–7 working days.
6. Report issuance and collection
Paper version + electronic version (CMA seal has legal effect)
IV. Commonly used testing methods
FTIR infrared spectroscopy: Qualitative analysis of resins and organic functional groups
GC-MS gas chromatography-mass spectrometry: Analysis of solvents and small molecule additives
HPLC liquid chromatography: Analysis of organic pigments and dyes
XRF X-ray fluorescence spectroscopy: Rapid screening of heavy metal elements
ICP-OES Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES): Precise determination of heavy metal content
DSC/TGA Thermal Analysis: Thermal stability and component content analysis
V. Cost Reference
| Testing Items | Approximate Cost Range (RMB)
| Basic Component Qualitative Analysis | 800 – 2000 RMB
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