Overview
ISO 2267:1986 establishes standardized methods for the preparation and use of unsoiled cotton control cloth when evaluating the effects of laundering, particularly in relation to surface active agents (such as detergents). By providing clear procedures and requirements for test materials, ISO 2267:1986 ensures that the causes of damage and degradation to household textile articles during washing can be reliably detected and analyzed. The standard supports consistent, reproducible testing across different laboratories and washing conditions, making it an important reference for textile manufacturers, detergent producers, and quality assurance specialists.
Key Topics
- Control Cloth Specification: The standard defines the required characteristics for unsoiled cotton control cloth, such as material composition (pure cotton), weave type (plain), and physical attributes like thread count and radiance. Strict requirements ensure consistency in test results.
- Preparation Procedures: ISO 2267:1986 details the washing, rinsing, hydroextraction, pressing, and conditioning processes to prepare control cloth. It also sets guidelines for water quality (zero hardness) and the use of pure soap flakes without fluorescent agents.
- Testing Methods: The document explains how test pieces of control cloth are to be washed concurrently with normally soiled textile articles in specified laundering cycles. It emphasizes the importance of comparing test pieces before and after repeated washing to detect changes in their properties.
- Measurement & Evaluation: Characteristic properties such as breaking strength, radiance, fluidity, and polymerization degree are measured and compared to initial values to assess the impact of laundering processes.
- Statistical Validity: The standard encourages the use of appropriate statistical methods for meaningful result interpretation, considering variations in test conditions and the intrinsic variability of soiled household items.
- Reporting & Marking Guidance: Detailed protocols for marking, numbering, and storing control cloth ensure traceability throughout testing.
Applications
- Textile Quality Control: Manufacturers use ISO 2267:1986 to assess the durability and performance of fabrics subject to repeated laundering, identifying potential weaknesses or unacceptable levels of damage caused by detergents or mechanical action.
- Detergent Development and Testing: Detergent producers rely on this standard to evaluate and compare the effects of their surface active agents on textile conservation, ensuring their products achieve thorough cleaning without excessive fabric wear.
- Research and Laboratory Testing: Standardized test methods facilitate comparative studies on textile care, helping labs produce authoritative, reproducible data on wash performance across different washing machines or detergents.
- Regulatory and Certification Assessments: Compliance with ISO 2267:1986 yields credibility in certifications and when demonstrating adherence to international laundering and textile care requirements.
- Consumer Protection: By quantifying fabric changes during washing, stakeholders can better inform consumers about expected textile performance and garment longevity.
Related Standards
- ISO 2 – Textiles - Designation of the direction of twist in yarns and related products
- ISO 862 – Surface active agents - Glossary
- ISO 1144 – Textiles - Universal system for designating linear density (Tex System)
- ISO 1973 – Textile fibres - Determination of linear density - Gravimetric method
- ISO 2061 – Textiles - Determination of twist in yarns - Direct counting method
- ISO 2174 – Surface active agents - Preparation of water with known calcium hardness
- ISO 3801 – Textiles - Woven fabrics - Determination of mass per unit length and per unit area
- ISO 4312 – Surface active agents - Evaluation of laundering effects - Methods of analysis and test of unsoiled cotton control cloth
- ISO 5081 – Textiles - Woven fabrics - Determination of breaking strength and elongation (strip method)
- ISO 7211-2 – Textiles - Woven fabrics - Construction - Method of analysis - Part 2: Determination of number of threads per unit length
By adhering to ISO 2267:1986, organizations can standardize laundry testing methods, improve textile product quality, and ensure confidence in detergent safety and performance.
Open preview (PDF)Surface active agents — Evaluation of certain effects of laundering — Methods of preparation and use of unsoiled cotton control cloth