Overview
ISO 105-X11:2026 is an international standard published by the International Organization for Standardization (ISO) that specifies a test method for evaluating the colour fastness of textiles to hot pressing. This standard is essential for assessing the resistance of dyed or printed textiles to the effects of ironing or processing on hot cylinders when the textile is dry, damp, or wet. Ensuring colour fastness to hot pressing is vital for maintaining product quality and consumer satisfaction in textile manufacturing, processing, and finishing.
Key Topics
- Colour Fastness to Hot Pressing: Method for determining if textile colours withstand exposure to heat and pressure during ironing or processing.
- Applicability: Covers fabrics, yarns, and loose fibres in all constructions and types of fibres, providing a universal approach for various textile forms.
- Testing Conditions:
- Dry Pressing: The textile is pressed when completely dry.
- Damp Pressing: A wet cotton adjacent fabric is placed over a dry textile specimen.
- Wet Pressing: Both the textile and adjacent fabric are wetted prior to pressing.
- Temperature Ranges: Tests are performed at 120°C, 160°C, or 210°C, depending on the textile type and end-use requirements.
- Assessment: Change in colour and staining on adjacent fabrics are evaluated using grey scales immediately after testing and after a period of conditioning.
Applications
ISO 105-X11:2026 is widely used in:
- Textile Manufacturing: Ensures that dyed or printed fabrics retain their appearance after ironing during garment production or in use.
- Quality Assurance: Provides manufacturers, laboratories, and retailers with a reliable method to confirm compliance with colour fastness requirements, reducing complaints and returns.
- Product Development: Helps textile designers and engineers select dyes and finishes that meet durability standards during product development, especially for garments, home textiles, and industrial textiles.
- Certification and Compliance: Supports compliance with international standards for export and market acceptance, facilitating trade in the global textile industry.
- Garment Laundering and Care Labelling: Informs care instructions to consumers and confirms that recommended ironing practices will not cause significant colour change or staining.
Related Standards
Several other ISO standards relate to ISO 105-X11:2026 and are often used together for comprehensive colour fastness testing:
- ISO 105-A01: General principles of testing for colour fastness in textiles.
- ISO 105-A02: Grey scale for assessing change in colour.
- ISO 105-A03: Grey scale for assessing staining.
- ISO 105-F02: Specification for cotton and viscose adjacent fabrics used in testing.
- ISO 139: Defines standard atmospheres for conditioning and testing textiles.
- ISO 3696: Specification and test methods for water used in laboratory testing.
- ISO 105-P01: Colour fastness to dry heat (excluding pressing).
Together, these standards ensure a robust framework for evaluating and assuring textile colour durability throughout washing, ironing, and everyday use, supporting global industry best practices and product reliability.
By complying with ISO 105-X11:2026, textile companies demonstrate a commitment to quality, durability, and customer satisfaction, aligning their products with international benchmarks for colour fastness to hot pressing.