This standard specifies the classification, requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of polyurethane synthetic leather.
This standard is applicable to polyurethane synthetic leather with hollow lotus-shaped fiber structure made of needled non-woven fabric by wet processing of polyurethane resin, solvent extraction and a series of post-finishing processes.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the document referred to applies.
GB/T 250-1995 Gray scale for assessing change in colour (eqv ISO 105/A02-1993)
GB/T 251-1995 Gray scale for assessing staining (eqv ISO 105/A02-1993)
GB/T 2828.1-2003 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (IDT ISO 2859-1:1999)
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and testing
GB/T 3920-1997 Textiles - Tests for colour fastness - Colour fastness to rubbing (eqv ISO 105-X12:1993)
GB/T 4689.21-1996 Leather - Determination of absorption of water (eqv ISO 2417:1972)
GB/T 4744-1997 Textile fabrics - Determination of resistance to water penetration - Hydrostatic pressure test (eqv ISO 811:1981)
Polyurethane synthetic leather
1 Scope
This standard specifies the classification, requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of polyurethane synthetic leather.
This standard is applicable to polyurethane synthetic leather with hollow lotus-shaped fiber structure made of needled non-woven fabric by wet processing of polyurethane resin, solvent extraction and a series of post-finishing processes.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the document referred to applies.
GB/T 250-1995 Gray scale for assessing change in colour (eqv ISO 105/A02-1993)
GB/T 251-1995 Gray scale for assessing staining (eqv ISO 105/A02-1993)
GB/T 2828.1-2003 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (IDT ISO 2859-1:1999)
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and testing
GB/T 3920-1997 Textiles - Tests for colour fastness - Colour fastness to rubbing (eqv ISO 105-X12:1993)
GB/T 4689.21-1996 Leather - Determination of absorption of water (eqv ISO 2417:1972)
GB/T 4744-1997 Textile fabrics - Determination of resistance to water penetration - Hydrostatic pressure test (eqv ISO 811:1981)
GB/T 8949-1995 Polyurethane dry-processing artificial leather
QB/T 2709-2005 Leather - Physical and mechanical tests - Determination of thickness
QB/T 2710-2005 Leather - Physical and mechanical tests - Determination of tensile strength and percentage extension
QB/T 2712-2005 Leather - Physical and mechanical tests - Determination of distension and strength of grain - Ball burst test
QB/T 2714-2005 Leather - Physical and mechanical tests - Determination of flex resistance
Contents of QB/T 1646-2007
Foreword i
1 Scope
2 Normative references
3 Classification
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation and storage
