Overview
ISO 7617-3:1988 is an international standard published by the International Organization for Standardization (ISO) specifying the technical requirements for polyurethane-coated woven fabrics used in upholstered furniture. This part of ISO 7617 focuses on fabrics with a substantially continuous polyurethane coating applied to one side of the base textile, providing enhanced durability and aesthetic qualities suitable for furniture upholstery. It complements Parts 1 and 2, which cover PVC-coated knitted and woven fabrics, respectively.
The standard establishes essential criteria on physical properties, durability, color fastness, and safety, ensuring consistent quality and performance of polyurethane-coated upholstery fabrics.
Key Topics
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Material Composition and Construction
Specifies the use of woven textile bases coated with a pigmented, substantially continuous layer of polyurethane on one side.
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Physical Property Requirements
- Minimum total mass and coating mass per square meter
- Tear and tensile strength (longitudinal and transverse directions)
- Coating adhesion and resistance to cracking during bending
- Durability under accelerated aging conditions including humidity and temperature
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Color Fastness and Appearance
- Requirements for resistance to fading under artificial light (xenon arc lamp)
- Resistance to rubbing (both dry and wet conditions)
- Visual examination for uniformity, absence of defects or cracks, and limited pinholes under magnification
- Color, grain, and finish consistency agreed upon between supplier and buyer
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Testing and Compliance Procedures
- Sampling methods for obtaining representative test specimens, including multiple samples for multi-colored fabrics
- Repetitive testing procedures if initial test results fail to meet criteria
- Detailed test methods for adhesion, tear resistance, flexing endurance, and color fastness based on referenced ISO standards
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Print Wear Resistance
Includes a normative annex specifying a method to assess resistance to print wear through a 500-cycle abrasion test using standardized cotton fabric and evaluation of color change on a gray scale.
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Inflammability Considerations
Advises on evaluating flammability according to applicable national regulations, with test methods to be included as needed.
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Marking and Traceability
Each fabric roll must bear a label containing the manufacturer’s identification, batch number, color, length, usable width, and reference to ISO 7617-3 for clear traceability.
Applications
ISO 7617-3:1988 is critical for manufacturers, suppliers, and quality inspectors of polyurethane-coated upholstery fabrics. The standard supports consistent quality in materials used for:
- Residential and commercial upholstered furniture
- Automotive and transportation seating
- Office furniture coverings
- Hospitality industry furnishings such as hotel seating and restaurant booths
By adhering to this standard, producers ensure fabric durability, aesthetic longevity, and safety compliance, thus improving product reliability and reducing returns or complaints related to coating failure or poor color fastness.
Related Standards
For a comprehensive understanding and application, ISO 7617-3 should be considered alongside other relevant ISO standards for textile and coated fabrics:
- ISO 7617 Parts 1 & 2 – Specifications for PVC-coated knitted and woven upholstery fabrics
- ISO 2411 – Determination of coating adhesion on textile supports
- ISO 4674 – Tear resistance testing for coated fabrics
- ISO 5970 – Surface contact adhesion of coatings
- ISO 105 series – Textile color fastness testing methods for light and rubbing
- ISO 2286 – Measuring characteristics of coated fabrics including width and mass
- ISO 1421 – Breaking force and elongation tests for rubber or plastic coated textiles
- ISO 7854 – Resistance to flex cracking of coated fabrics
- ISO 2231 – Conditioning atmospheres for textile testing
Utilizing these related standards in concert with ISO 7617-3 offers a robust framework for assessing and verifying the performance of polyurethane-coated upholstery fabrics within quality management systems worldwide.
Keywords: polyurethane-coated fabrics, upholstery fabric standards, ISO 7617-3, coated fabrics for furniture, textile coating specifications, fabric durability, color fastness, upholstery material testing, fabric marking and traceability.