Dipped polyester cord fabric for tyres
1 Scope
This document specifies the product classification and specifications, technical requirements, test conditions, product batching rules and specimen preparation methods, test methods for physical and chemical properties, methods for inspecting organization specification and appearance quality and inspection rules, as well as packaging, marking, quality guarantee, transport and storage of dipped polyester cord fabric for tyres.
This document is applicable to the quality appraisal and acceptance of dipped polyester cord fabric for tyres.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2942-2009 Rubber vulcanized - Determination of static adhesion to textile cord - H-pull test
GB/T 3291 (All parts) Textiles - Terms of textiles material properties and test
GB/T 4666-2009 Textiles - Fabrics- Determination of width and length
GB/T 4668-1995 Textiles－Woven fabrics－Determination of number of threads per unit length
GB/T 6529-2008 Textiles - Standard atmospheres for conditioning and testing
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 14343-2008 Testing method for linear density of man-made filament yarns
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3291 (all parts) and the following apply.
3.1
H-test adhesive strength
force required to pull a unit length of cord from an H-shaped rubber cord test piece in the direction perpendicular to the rubber block
3.2
dip pick-up
ratio of the constant mass of the dipped material to that of the blank cord after separating the dipped component of the dipped cord from the blank cord via chemical methods and drying it to a constant mass
3.3
elongation at specified load
strain of cord at specified load
3.4
hot air thermal shrinkage
ratio of the length reduction of cord due to the action of dry and hot air at a certain temperature to the original length
3.5
warp density within specified width from each edge
number of warps on both sides of the fabric within specified length from each edge of the cord fabric
3.6
net weight
weight of dipped cord fabric obtained by deducting the weight of all packaging materials from the weight of cord fabric roll when the roll leaves the dipping machine
3.7
dimensional stability index
sum of elongation at specified load and hot air thermal shrinkage
3.8
linear density of the dipped cord
absolute dry mass of a certain length of dipped cord
4 Product classification and specifications
4.1 Dipped polyester cord fabric may be divided into those with high modulus and low shrinkage (HMLS), with high tenacity, high modulus and low shrinkage (HT-HMLS), and with high dimensional stability, high modulus and low shrinkage (HDS-HMLS) by their physical and chemical properties.
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and specifications
5 Technical requirements
6 Test conditions, product batching rules and specimen preparation methods
7 Test methods for physical and chemical properties
8 Inspection method for organization specification
9 Inspection rules
10 Packaging, marking, quality guarantee, transport and storage
Annex A (Informative) Method for testing tensile properties - CRT tensile testing machine method
Annex B (Informative) Schematic diagram for pneumatic fixture of tensile testing machine
Dipped polyester cord fabric for tyres
1 Scope
This document specifies the product classification and specifications, technical requirements, test conditions, product batching rules and specimen preparation methods, test methods for physical and chemical properties, methods for inspecting organization specification and appearance quality and inspection rules, as well as packaging, marking, quality guarantee, transport and storage of dipped polyester cord fabric for tyres.
This document is applicable to the quality appraisal and acceptance of dipped polyester cord fabric for tyres.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2942-2009 Rubber vulcanized - Determination of static adhesion to textile cord - H-pull test
GB/T 3291 (All parts) Textiles - Terms of textiles material properties and test
GB/T 4666-2009 Textiles - Fabrics- Determination of width and length
GB/T 4668-1995 Textiles－Woven fabrics－Determination of number of threads per unit length
GB/T 6529-2008 Textiles - Standard atmospheres for conditioning and testing
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 14343-2008 Testing method for linear density of man-made filament yarns
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3291 (all parts) and the following apply.
3.1
H-test adhesive strength
force required to pull a unit length of cord from an H-shaped rubber cord test piece in the direction perpendicular to the rubber block
3.2
dip pick-up
ratio of the constant mass of the dipped material to that of the blank cord after separating the dipped component of the dipped cord from the blank cord via chemical methods and drying it to a constant mass
3.3
elongation at specified load
strain of cord at specified load
3.4
hot air thermal shrinkage
ratio of the length reduction of cord due to the action of dry and hot air at a certain temperature to the original length
3.5
warp density within specified width from each edge
number of warps on both sides of the fabric within specified length from each edge of the cord fabric
3.6
net weight
weight of dipped cord fabric obtained by deducting the weight of all packaging materials from the weight of cord fabric roll when the roll leaves the dipping machine
3.7
dimensional stability index
sum of elongation at specified load and hot air thermal shrinkage
3.8
linear density of the dipped cord
absolute dry mass of a certain length of dipped cord
4 Product classification and specifications
4.1 Dipped polyester cord fabric may be divided into those with high modulus and low shrinkage (HMLS), with high tenacity, high modulus and low shrinkage (HT-HMLS), and with high dimensional stability, high modulus and low shrinkage (HDS-HMLS) by their physical and chemical properties.
Contents of GB/T 19390-2023
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and specifications
5 Technical requirements
6 Test conditions, product batching rules and specimen preparation methods
7 Test methods for physical and chemical properties
8 Inspection method for organization specification
9 Inspection rules
10 Packaging, marking, quality guarantee, transport and storage
Annex A (Informative) Method for testing tensile properties - CRT tensile testing machine method
Annex B (Informative) Schematic diagram for pneumatic fixture of tensile testing machine
