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
輪胎用聚酯浸膠簾子布
1 范圍
本文件規(guī)定了輪胎用聚酯浸膠簾子布的產(chǎn)品分類及規(guī)格、技術(shù)要求、試驗條件、產(chǎn)品分批規(guī)定及試樣制備方法、理化性能試驗方法、組織規(guī)格和外觀品質(zhì)檢驗方法、檢驗規(guī)則及包裝、標志、品質(zhì)保證書、運輸和貯存。
本文件適用于輪胎用聚酯浸膠簾子布品質(zhì)的鑒定和驗收。
2 規(guī)范性引用文件
下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。
GB/T 2942-2009 硫化橡膠與纖維簾線靜態(tài)合強度的測定 H抽出法
GB/T 3291(所有部分) 紡織 紡織材料性能和試驗術(shù)語
GB/T 4666-2009 紡織品 織物長度和幅寬的測定
GB/T 4668-1995 機織物密度的測定
GB/T 6529-2008 織品 調(diào)濕和試驗用標準大氣
GB/T 8170 數(shù)值修約規(guī)則與極限數(shù)值的表示和判定
GB/T 14343-2008 化學纖維 長絲線密度試驗方法
3 術(shù)語和定義
GB/T 3291(所有部分界定的以及下列語和定適用于文件。
3.1
H-抽出粘合強度H-test adhesive strength
簾線從 H 形橡膠-簾線試片中沿與橡膠塊直方向拉出單位長度所需的力。
3.2
附膠量 dip pick-up
將浸膠簾線的浸膠組分物質(zhì)與白坯簾線通過化學方法分離并烘干至恒質(zhì)量,浸膠物質(zhì)恒質(zhì)量與白坯簾線恒質(zhì)量之比。
3.3
定負荷伸長率 elongation at specified load
簾線在給定負荷下的應(yīng)變。
3.4
干熱收縮率 hot air thermal shrinkage
簾線因受一定溫度干熱空氣的作用而產(chǎn)生的長度減量與原長度之比。
3.5
邊部經(jīng)線密度 warp density within specified width from each edge
簾子布經(jīng)向兩側(cè)距布邊一定長度內(nèi)經(jīng)線的根數(shù)。
3.6
凈質(zhì)量 net weight
離開浸膠機時簾子布布卷質(zhì)量扣除所有包裝物質(zhì)量所得的浸膠簾子布質(zhì)量
3.7
尺寸穩(wěn)定性指數(shù) dimensional stability index
定負荷伸長率與干熱收縮率的和。
3.8
漫膠簾線線密度 linear density of the dipped cord
一定長度的浸膠簾線絕干質(zhì)量。
4 產(chǎn)品分類及規(guī)格
4.1 聚酯浸膠簾子布根據(jù)理化性能分為高量低收型(HMLS)、高強力高模量低收縮型(HT-HMLS)和高尺寸穩(wěn)定性高模量低收縮型(HDS-HMLS)。
