GB/T 28117-2026 General quality rules of multi-layer co-extrusion films and pouches for food packaging English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 28117-2026
General quality rules of multi-layer co-extrusion films and pouches for food packaging
食品包装用多层共挤膜、袋质量通则
Issue date: 2026-06-27 Implementation date: 2027-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Product classification
6 Requirements
7 Test methods
8 Inspection rules
9 Marking, packaging, transportation and storage
General quality specification for multi-layer co-extruded films and pouches for food packaging
1 Scope
This document specifies the technical requirements, inspection rules, marking, packaging, transportation and storage requirements for multi-layer co-extruded films and pouches for food packaging (hereinafter referred to as "films and pouches"), provides the product classification, and describes the corresponding test methods.
This document is applicable to the production, inspection and sale of films and pouches for food packaging produced by multi-layer melt co-extrusion processes.
This document is not applicable to multi-layer co-extruded heat-shrinkable films and pouches.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 191, Packaging — Pictorial marking for handling of goods
GB/T 1037-2021, Plastics — Film and sheeting — Determination of water vapour transmission rate — Cup method (mass gain and mass loss)
GB/T 1038.1, Plastics products — Film and sheeting — Test methods for gas permeability — Part 1: Differential pressure method
GB/T 1040.3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
GB/T 2410, Determination of the luminous transmittance and haze of transparent plastics
GB/T 2828.1-2012, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2918-2018, Plastics — Standard atmospheres for conditioning and testing
GB/T 6672, Plastics film and sheeting — Determination of thickness by mechanical scanning
GB/T 6673, Plastics film and sheeting — Determination of length and width
GB/T 7705, Lithographic decorative prints
GB/T 7707, Gravure decorative prints
GB/T 8808, Test method for peel properties of flexible composite plastic materials
GB/T 9639.1-2008, Plastics films and sheeting — Determination of impact resistance by the free-falling dart method — Part 1: Staircase methods
GB 12904, Bar code for commodity — Retail commodity numbering and bar code marking
GB/T 14257, Bar code for commodity — Bar code symbol placement guidelines
GB/T 14258, Information technology — Automatic identification and data capture techniques — Verification of bar code symbol print quality
GB/T 17497.2, Flexographic decorative prints — Part 2: Plastics and metal foils
GB/T 18348, Bar code for commodity — Verification of bar code symbol print quality
GB/T 19789, Packaging materials — Test method for oxygen permeability of plastic films and sheeting — Coulometric detector method
GB/T 21302, General specification for laminated films and pouches for packaging
GB/T 26253, Determination of water vapour transmission rate of plastic films and sheeting — Infrared detector method
GB/T 33259, Quality requirements and verification methods for digital printing
QB/T 1130, Test method for right-angle tear properties of plastics
QB/T 2358, Test method for heat seal strength of plastic film pouches
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
multi-layer co-extrusion film
A multi-layer composite film obtained by using two or more extruders to separately extrude multiple different or identical polymer melts through a common die.
3.2
polyolefin
A general term for a class of thermoplastic resins obtained by homopolymerisation or copolymerisation of α-olefins such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, and certain cyclic olefins.
4 Abbreviations
The following abbreviations are applicable to this document.
EVOH: Ethylene vinyl alcohol copolymer
PA: Polyamide
PBT: Polybutylene terephthalate
PO: Polyolefin
PS: Polystyrene
PVDC: Vinylidene chloride and methyl acrylate copolymer
PVOH: Polyvinyl alcohol
5 Product classification
5.1 Films are classified by shape into flat films and tubular films.
5.2 Products are classified into Types I, II, III and IV according to the main barrier functional resin, as shown in Table 1.
6 Requirements
6.1 Appearance quality
The appearance quality of films and pouches shall comply with the provisions of Table 2.
6.2 Odour
Films and pouches shall not have abnormal odour.
6.3 Printing quality
6.3.1 Gravure printing
The quality of gravure printing shall comply with GB/T 7707.
6.3.2 Flexographic printing
The quality of flexographic printing shall comply with GB/T 17497.2.
6.3.3 Lithographic printing
The quality of lithographic printing shall comply with GB/T 7705.
6.3.4 Digital printing
The quality of digital printing shall comply with GB/T 33259.
6.3.5 Bar code printing
The quality of bar code printing shall comply with GB 12904 and GB/T 14257.
6.4 Specifications
6.4.1 Dimensional deviations of films
The length and width deviations of films shall comply with the provisions of Table 3.
6.4.2 Splices
The splice length and number of splices of films shall comply with the provisions of Table 4.
6.4.3 Thickness and deviations
The thickness and deviations of films and pouches shall comply with the provisions of Table 5.
6.4.4 Roll core dimensions and deviations of roll films
Inner diameter: φ760+2 mm or φ1520+2 mm. Special requirements shall be agreed upon between the supplier and the purchaser.
6.4.5 Dimensions and deviations of pouches
The dimensions and deviations of pouches shall comply with the provisions of Table 6.
6.5 Physical properties
6.5.1 Mechanical and optical properties
Mechanical and optical properties shall comply with the provisions of Table 7.
6.5.2 Water vapour barrier properties
Water vapour barrier properties shall comply with the provisions of Table 8.
6.5.3 Oxygen barrier properties
Oxygen barrier properties shall comply with the provisions of Table 9.
6.5.4 Pressure resistance of pouches
The pressure resistance of pouches shall comply with the provisions of Table 10.
6.5.5 Drop performance of pouches
The drop performance of pouches shall comply with the provisions of Table 11.
6.6 Residual solvent
The total residual solvent in films and pouches for food packaging shall be less than or equal to 5.0 mg/m², and benzene-based solvents shall not be detected.
Note: The residual solvent item is limited to printed films and pouches.
Standard
GB/T 28117-2026 General quality rules of multi-layer co-extrusion films and pouches for food packaging (English)
Standard No.
GB/T 28117-2026
Status
to be valid
Language
English
File Format
PDF
Word Count
10500 words
Translation Price(USD)
315.0
Implemented on
2027-3-1
Delivery
via email in 1~5 business day
Detail of GB/T 28117-2026
Standard No.
GB/T 28117-2026
English Name
General quality rules of multi-layer co-extrusion films and pouches for food packaging
GB/T 28117-2026 General quality rules of multi-layer co-extrusion films and pouches for food packaging English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 28117-2026
General quality rules of multi-layer co-extrusion films and pouches for food packaging
食品包装用多层共挤膜、袋质量通则
Issue date: 2026-06-27 Implementation date: 2027-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Product classification
6 Requirements
7 Test methods
8 Inspection rules
9 Marking, packaging, transportation and storage
General quality specification for multi-layer co-extruded films and pouches for food packaging
1 Scope
This document specifies the technical requirements, inspection rules, marking, packaging, transportation and storage requirements for multi-layer co-extruded films and pouches for food packaging (hereinafter referred to as "films and pouches"), provides the product classification, and describes the corresponding test methods.
This document is applicable to the production, inspection and sale of films and pouches for food packaging produced by multi-layer melt co-extrusion processes.
This document is not applicable to multi-layer co-extruded heat-shrinkable films and pouches.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 191, Packaging — Pictorial marking for handling of goods
GB/T 1037-2021, Plastics — Film and sheeting — Determination of water vapour transmission rate — Cup method (mass gain and mass loss)
GB/T 1038.1, Plastics products — Film and sheeting — Test methods for gas permeability — Part 1: Differential pressure method
GB/T 1040.3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
GB/T 2410, Determination of the luminous transmittance and haze of transparent plastics
GB/T 2828.1-2012, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2918-2018, Plastics — Standard atmospheres for conditioning and testing
GB/T 6672, Plastics film and sheeting — Determination of thickness by mechanical scanning
GB/T 6673, Plastics film and sheeting — Determination of length and width
GB/T 7705, Lithographic decorative prints
GB/T 7707, Gravure decorative prints
GB/T 8808, Test method for peel properties of flexible composite plastic materials
GB/T 9639.1-2008, Plastics films and sheeting — Determination of impact resistance by the free-falling dart method — Part 1: Staircase methods
GB 12904, Bar code for commodity — Retail commodity numbering and bar code marking
GB/T 14257, Bar code for commodity — Bar code symbol placement guidelines
GB/T 14258, Information technology — Automatic identification and data capture techniques — Verification of bar code symbol print quality
GB/T 17497.2, Flexographic decorative prints — Part 2: Plastics and metal foils
GB/T 18348, Bar code for commodity — Verification of bar code symbol print quality
GB/T 19789, Packaging materials — Test method for oxygen permeability of plastic films and sheeting — Coulometric detector method
GB/T 21302, General specification for laminated films and pouches for packaging
GB/T 26253, Determination of water vapour transmission rate of plastic films and sheeting — Infrared detector method
GB/T 33259, Quality requirements and verification methods for digital printing
QB/T 1130, Test method for right-angle tear properties of plastics
QB/T 2358, Test method for heat seal strength of plastic film pouches
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
multi-layer co-extrusion film
A multi-layer composite film obtained by using two or more extruders to separately extrude multiple different or identical polymer melts through a common die.
3.2
polyolefin
A general term for a class of thermoplastic resins obtained by homopolymerisation or copolymerisation of α-olefins such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, and certain cyclic olefins.
4 Abbreviations
The following abbreviations are applicable to this document.
EVOH: Ethylene vinyl alcohol copolymer
PA: Polyamide
PBT: Polybutylene terephthalate
PO: Polyolefin
PS: Polystyrene
PVDC: Vinylidene chloride and methyl acrylate copolymer
PVOH: Polyvinyl alcohol
5 Product classification
5.1 Films are classified by shape into flat films and tubular films.
5.2 Products are classified into Types I, II, III and IV according to the main barrier functional resin, as shown in Table 1.
6 Requirements
6.1 Appearance quality
The appearance quality of films and pouches shall comply with the provisions of Table 2.
6.2 Odour
Films and pouches shall not have abnormal odour.
6.3 Printing quality
6.3.1 Gravure printing
The quality of gravure printing shall comply with GB/T 7707.
6.3.2 Flexographic printing
The quality of flexographic printing shall comply with GB/T 17497.2.
6.3.3 Lithographic printing
The quality of lithographic printing shall comply with GB/T 7705.
6.3.4 Digital printing
The quality of digital printing shall comply with GB/T 33259.
6.3.5 Bar code printing
The quality of bar code printing shall comply with GB 12904 and GB/T 14257.
6.4 Specifications
6.4.1 Dimensional deviations of films
The length and width deviations of films shall comply with the provisions of Table 3.
6.4.2 Splices
The splice length and number of splices of films shall comply with the provisions of Table 4.
6.4.3 Thickness and deviations
The thickness and deviations of films and pouches shall comply with the provisions of Table 5.
6.4.4 Roll core dimensions and deviations of roll films
Inner diameter: φ760+2 mm or φ1520+2 mm. Special requirements shall be agreed upon between the supplier and the purchaser.
6.4.5 Dimensions and deviations of pouches
The dimensions and deviations of pouches shall comply with the provisions of Table 6.
6.5 Physical properties
6.5.1 Mechanical and optical properties
Mechanical and optical properties shall comply with the provisions of Table 7.
6.5.2 Water vapour barrier properties
Water vapour barrier properties shall comply with the provisions of Table 8.
6.5.3 Oxygen barrier properties
Oxygen barrier properties shall comply with the provisions of Table 9.
6.5.4 Pressure resistance of pouches
The pressure resistance of pouches shall comply with the provisions of Table 10.
6.5.5 Drop performance of pouches
The drop performance of pouches shall comply with the provisions of Table 11.
6.6 Residual solvent
The total residual solvent in films and pouches for food packaging shall be less than or equal to 5.0 mg/m², and benzene-based solvents shall not be detected.
Note: The residual solvent item is limited to printed films and pouches.
