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GB/T 33612-2017Biaxial weft-knitted fabrics of aramid and its hybrid fibesrs (English PDF)

芳纶及其混编纤维的双轴向纬编织物

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 12, 2017

Implementation date

December 1, 2017

Scope

GB/T 33612-2017 is the English-translated version of 芳纶及其混编纤维的双轴向纬编织物.

GB/T 33612-2017 covers biaxial weft-knitted fabrics made mainly from aramid and blended with carbon fibre and other high-performance fibres; fabrics of other fibres may be handled by reference to it.

It sets the terms and definitions, the codes, the requirements, the test methods, the inspection rules and the marking, packaging, transport and storage.

The fabric is defined as one in which layers of yarn lying in the 0 ° direction of knitting and layers lying at 90 ° to it are bound together by a weft-knitted structure, and clause 4 codes the fabric by that binding system: P for the weft-insertion structure, DP for the double weft-insertion structure and R for the rib structure. It was issued on 12 May 2017 and has applied since 1 December 2017.

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Document preview — GB/T 33612-2017

National Standard of the People's Republic of China

ICS: 59.080.30
Classification: W 59

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative reference documents
3 Terms and definitions
4 Code

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the terms and definitions of biaxial weft knitted fabrics of aramid and its mixed fibers, codes, requirements, test methods, inspection regulations Then, mark, pack, transport and store.

This standard applies to aramid fiber as the main material, and carbon fiber and other high-performance fiber mixed biaxial weft knitted fabric, the other A biaxial weft knitted fabric made of fibers may be referred to.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 1447 Test method for tensile properties of fiber reinforced plastics

GB/T 1449 Test method for flexural properties of fiber reinforced plastics

GB/T 3362 Test method for tensile properties of carbon fiber multifilaments

GB/T 3923.1 Tensile properties of textile fabrics - Part 1: Determination of breaking strength and elongation at break

GB/T 4146.1 Textiles - Chemical fibers - Part 1: Generic names

GB/T 4666 Textiles - Determination of length and width of fabrics

GB/T 7689.1-2013 Reinforcements - Test methods for woven fabrics - Part 1: Determination of thickness

GB/T 7689.2 Reinforcements - Test methods for woven fabrics - Part 2: Determination of warp and weft density

GB/T 9914.3 Test methods for reinforced products - Part 3: Determination of mass per unit area

GB/T 14343 Test method for linear density of chemical fiber filament

GB/T 18318.1 Determination of bending properties of textiles - Part 1: Slant method

GB/T 19975 Test method for tensile properties of high strength chemical fiber filaments

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Biaxial weft knitted fabric

The weft knitting structure in the knitting structure is used to contain one or more layers of weft yarns in the 0 ° direction (in the weaving direction) Layers in the 90 ° direction (perpendicular to the weaving direction) are bundled together to form the fabric.

4 Code

4.1 Structure code

The biaxial weft knitted fabric can be divided into P-type (P), DP-ray (DP) and R-weave (R) according to the structure of the bundled system. P The weave system represents the binding system for the weft needle organization, the structure shown in Figure 1; DP weave on behalf of the binding system for the double weft needle organization, see Figure 2; Law on behalf of the bundled system for the rib organization, the structure shown in Figure 3.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 11047.4-2026|GB/T 17392-2026|GB/T 20039-2026|GB/T 33272-2026|GB/T 47521-2026|GB/T 47772-2026

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