other information
drafter:Li Hua, Yang Wei, Gao Xuewen, Wu Xiangning, Liao Zhenduo, Li Ling, Wang Zhenhua, Wang Lijie
Drafting unit:China Packaging Research and Testing Center
Focal point unit:National Packaging Standards Committee
Proposing unit:China Packaging Federation
Publishing department:National Development and Reform Commission
competent authority:National Packaging Standards Committee
Some standard content:
ICS 55, 40
Packaging Industry Standards of the People's Republic of China
BB/T00412007
General rules of multi-layer co-extrusion barrier film for packaging2007-03-06Promulgated
Implementation on 2007-09-01
Promulgated by the National Development and Reform Commission
Announcement of the National Development and Reform Commission of the People's Republic of China
No. 16 of 2007
The National Development and Reform Commission approved 207 industry standards including "Passenger Car Categories and Codes" (the standard number name and starting implementation date are shown in the attachment), including 7 automobile industry standards, 177 machinery industry standards, 9 packaging industry standards, 7 ferrous metallurgy industry standards and 7 pharmaceutical equipment industry standards, which are now announced.
The above automotive, packaging, and pharmaceutical equipment industry standards are published by China Planning Press, the machinery industry standards are published by Machinery Industry Press, and the ferrous metallurgy industry standards are published by Metallurgy Industry Press.
Appendix: Numbers, names and implementation dates of 9 packaging industry standards National Development and Reform Commission of the People's Republic of China March 6, 2007
61:60 8007 90/1
Appendix:
Standard number
Numbers, names and implementation dates of 9 packaging industry standards Standard name
BB/T 0040 2007
BB/T 0041 2007
BB/T 0042 2007
BE/T 0043 2007
BB/T 0044—2007
BB/T0045—2007
BB 0046-—2007
BB/T0047—2007
BB/T 0048-2007
Assembled plywood boxes
General rules for multi-layer co-extruded barrier films for packaging
Packing containers aluminum-coated medicine bottles
Plastic logistics turnover boxes
Packing containers plastic pesticide bottles
Molded pulp products
Industrial product packaging
Aerosol ribbons
Aerosol paint
Combined anti-counterfeiting bottle caps
Implementation date|| tt | | 2007-09-01 | 9-01
2007-09-01
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Normative references
Terms and definitions
Product classification
Test methods
Inspection rules
8 Marking, packaging, transportation and storage
Appendix A (Normative Appendix) Test method for puncture resistance Appendix B (Normative Appendix) Test method for heavy metal content, 200 taels
BB/T0041—2007
1H 61:60 8007 90/1-
BB/T0041—2007
Appendix A and Appendix B of this standard are both normative appendices. This standard is proposed by the China Packaging Federation. This standard is under the jurisdiction of the National Technical Committee for Packaging Standardization. Introduction
The main drafting organizations of this standard are: China Packaging Research and Testing Center, Jiangyin Longqi Packaging Material Co., Ltd., Jiangsu Caihua Packaging Group Co., Ltd. - Jiahe Industrial (Suzhou) Co., Ltd., Shanghai Zijiang Plastic Packaging Co., Ltd., Shenzhen Vocational and Technical College: The main drafters of this standard are: Li Hua, Yang Hui, Gao Xuewen, Wu Xiangning, Yuan Zhenduo, Li Ling, Yu Zhenhua, Wang Lijie. 100g
1: 80 g0/1t
1Scope
General rules for multilayer coextruded barrier films for packaging
BB/T 0041-2007
This standard specifies the product classification, requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of multilayer coextruded barrier films for packaging (hereinafter referred to as coextruded films). This standard applies to multi-layer composite packaging films with barrier properties produced by co-extrusion of barrier resins such as ethylene-vinyl alcohol copolymer (EVOH), polyvinyl dichloride (PVDC), polyamide (PA) and other resins, except for pharmaceutical packaging. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions shall apply to this standard. GB/T191 Packaging storage and transportation pictorial mark
CB/T1037—1988 Test method for water vapor permeability of plastic film and sheeting-Cup methodGB/T1038—2000 Test method for gas permeability of plastic film and sheeting-Differential pressure methodGB/T2035 Plastic terms and definitions
GB/T2410-—1980 Test method for light transmittance and haze of transparent plasticsGB/T2828.1—2003 Sampling inspection procedure by attributes-Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL)Www.bzxZ.net
GB/T2918 Standard environment for conditioning and testing of plastic specimensGB/T5009.60—2003 Analytical method for hygienic standard of ethylene, polystyrene and polypropylene moldings for food packagingGB/T6672—2001 Determination of thickness of plastic film and sheeting-Mechanical measurement methodGB/T 6673-2001
Determination of length and width of plastic film and sheetGE/T 8808—1988
Test method for peeling of soft composite plastic materialsGB/T 9639—1988
Test method for impact resistance of plastic film and sheetFree falling dart method
GB/T13022-—1991Test method for tensile properties of plastic filmQB/T1130—1991Test method for right-angle tearing properties of plasticsQB/T 2358-—1998
Test method for heat seal strength of plastic film packaging bags BSEN1122:2001 Plastics-Determination of cadmium-Wet decomposition method FDCR13695--1:2000 Packaging Requirements for measurement and determination of the release of four heavy metals and harmful substances in packaging Part 1: Requirements for measurement and determination of four heavy metals USEPA3050B—1996 Acid decomposition method for sediments, sludge and soil USEPA3052—1996 Microwave-assisted acid decomposition method for silicic acid materials and organic materials USEPA3060A—1996 Alkaline decomposition method for hexavalent chromium 1
I0h 61:60 800z g0/1T
BB/T 0041—2007
USEPA7196A—1992 Width measurement of hexavalent chromiumColorimetricUSEPA7473—1998 Determination of mercury in solid and liquid samplesThermal decomposition amalgam atomic absorption spectrometry
3 Terms and definitions
All the terms and definitions specified in GB/T2035 and the following terms and definitions apply to this standard3.1
Multi-layer co-extruded barrier film
Multi-layer co-extruded barrier filmThe multi-layer composite film obtained by using multiple extruders to extrude the melt of barrier resin and other resins through a common die head is called multi-layer co-extruded barrier film.
Product classification
Co-extruded film is divided into three categories according to the type of barrier layer resin, A, B, and C, as shown in Table 1. Table 1 Product classification
5 Requirements
5.1 Size and specifications
5.1.1 Width deviation.
Width deviation requirements are shown in Table 2.
Width, mm
Thickness deviation.
Thickness deviation requirements are shown in Table 3:
>0. 075 -0.150
Resin type
Products with EVOH as main barrier resinProducts with PVDC as main barrier resinProducts with PA as main barrier resinTable 2 Width deviation
Deviation, mim
>300-1000
> 1000 ~ 2000
Table 3 Thickness deviation
Thickness limit deviation, mm
Indicator requirements
Simple film (folded diameter)
Average thickness deviation, %
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5.1.3 Number of sections per roll and length of each section.
The requirements for the number of sections per roll and length of each section are shown in Table 4. Table 4 Number of sections per roll and length of each section
Number of sections per roll
Length of each section, m
5.2 Appearance quality
Appearance quality requirements are shown in Table 5.
Table 5 Appearance quality requirements
Bubble perforation and rupture
Water mark and cloud
Surface scratch and pollution
Eye, stiff block, pcs/m
Material, pcs/m2
Smoothness
5.3 Physical and mechanical property requirements
5.3.1 Mechanical and optical property requirements.
Not allowed
Unclear drive
Not allowed
Not obvious
BB/T 0041—-2007
D >2mm, not allowed. ② 0.6mm-2mm, ≤10,③Dispersion (pieces/100mm×100mm) or 2. @>0.6am, not allowed. (2) 0.3mm ~0.6mm,≤4. ③Dispersion (pieces/100mm×100mm) ≤2, no obvious wrinkles, ribs and poor plasticization are allowed. Mechanical and optical properties are optional items. The items in Table 6 to Table 12 are divided into Group 1, Group 2 and Group 3 according to the strength requirements of the indicators. Both the supplier and the buyer should select the group according to the characteristics of the product and the actual use. The items should meet the indicator requirements of the corresponding group selected in Table 6, Table 7, Table 8, Table 9, Table 10, Table 11 and Table 12 respectively. 5.3.1.1 Tensile strength requirements.
Tensile strength requirements are shown in Table 6.
Table breaking force requirements
Breaking force, N
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BB/ T 0041-2007
5.3.1.2 Heat seal strength requirements.
Heat seal strength requirements are shown in Table 7.
Heat seal strength (limited to bag products), N/15mm5.3.1.3 Tearing load requirements
Tearing load requirements are shown in Table 8,
Tearing load, N
5.3.1.4 Puncture resistance requirements.
Puncture resistance requirements are shown in Table 9.
Puncture resistance
Rupture force, N
Elongation, mm
5.3.1.5 Dart impact quality requirements.
Dart impact quality requirements are shown in Table 10.
Table 7 Heat seal strength requirements
Table 8 Tear load requirements
Puncture resistance requirements
Dart impact quality, g
5.3.1.6 Peel strength requirements.
Peel strength requirements are shown in Table 11.
Dart impact quality requirements
Table 11 Peel strength requirements
Peel strength, N/15mm
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5.3.1.7 Haze/transmittance requirements!
Haze/transmittance requirements are shown in Table 12.
Haze, %
Transmittance, %
Note: Haze and transmittance items are limited to transparent films. 5.3.2 Barrier performance requirements.
For barrier performance requirements of co-extruded films, see Table 13.
Oxygen permeability, cm/(m.24h -0.1MPa) Water vapor permeability, g/(product*·24h)
5.4 Hygienic performance
Zero degree/light transmittance requirements
Barrier performance requirements
For hygienic performance requirements of co-extruded films that directly contact food, see Table 14. Table 14 Hygienic performance requirements
Product requirements
Soaking liquid requirements
4% acetic acid
Evaporation residue
N-hexane, room temperature, 2h
65% ethanol, room temperature, 2h
(Referring to composite packaging with polyethylene plastic as the inner layer) Potassium manganate decolorization amount (water), g/L
Heavy metal (measured in Pb)
BB/T 00412007
Normal color, no peculiar smell, no foreign matter. There shall be no peculiar smell, odor, turbidity and discoloration after soaking for 30
Note: Soaking conditions: 1. The use temperature (including sterilization) of the co-swimming membrane is 120℃, 40min. 2. Make the co-extruded film with a temperature below 60℃ 60℃, 2h5
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5.5 Heavy metal content
The requirements for the content of heavy metals in the co-extruded film that directly contacts food are shown in Table 15. Table 15 Heavy metal content
Lead (Pb)
Hexavalent chromium (Cr+*)
Mercury (Hg)
6 Test method
6.1 Sample state adjustment and test standard environment requirements
Total content 100mg/kg
The sample state adjustment and test standard environment shall be carried out in accordance with GB/T2918. The sample pretreatment time under standard environment conditions shall be more than 4h. The test environment conditions are temperature 23℃±2°C and relative humidity 50%±10%. 6.2 Dimensions and specifications
6.2.1 Width.
Perform in accordance with the provisions of GB/T6673-2001. 6.2.2 Thickness.
Perform in accordance with the provisions of GB/T6672-2001. The limit deviation of thickness shall be calculated according to formula (1): At = tmx(tmin)-
Wherein:
At Limit deviation of thickness, mm:
tmr(tmin)-
-Maximum (minimum) value of measured thickness, mmtNominal thickness, mm.
The average deviation of thickness shall be calculated according to formula (2): Wherein:
t——Average deviation of thickness, %:
Average thickness, mm;
Nominal thickness, mm.
6.3 Appearance
t = (t, - to)/hg × 100
Bubble, perforation, rupture, water mark, cloud, streak, rib, flatness, surface scratch and pollution items in the appearance requirements shall be visually inspected under natural light. The size of "fish eye" and "lump" and impurities shall be inspected with a 10-degree magnifying glass, calculated by the maximum length, and the sampling area shall not be less than 1m2.
6.4 Physical and mechanical properties test
6.4.1 Tensile strength test.
FS1:60800790/1T
BB/T 0041 --2007
The test shall be carried out in accordance with the provisions of GB/T13022--1991. The specimen is a V-shaped specimen with a width of 15mm, a jaw distance of 50mm for the tensile testing machine, and a test speed of 250mm/min±25mm/min. 6.4.2 Heat seal strength test.
Test in accordance with the provisions of QE/T2358-1998. 6.4.3 Tear load test.
Test in accordance with the provisions of QB/T1130-1991. 6.4.4 Puncture resistance test.
Test in accordance with the provisions of Appendix A.
6.4.5 Dart impact quality test:
Test in accordance with the provisions of CB/T9639-1988. 6.4.6 Peel strength test.
Test in accordance with the provisions of GB/T8808-1988. 6.4.7 Light transmittance and haze test.
Perform the test in accordance with the provisions of CB/T2410-1980. 6.4.8 Oxygen permeability test.
Perform the test in accordance with the provisions of GB/T1038--2000. 6.4.9 Water vapor permeability test.
Perform the test in accordance with the provisions of GB/T1037-1988. The test conditions are temperature 38T ± 0.6℃, relative humidity 90% ± 2%. 6.5 Hygienic performance test
Product sensory requirements and soaking liquid requirements are inspected by visual inspection and membrane inspection. Other items are tested in accordance with the provisions of GB/T5009.60-2003: 6.6 Heavy metal content test
The test shall be carried out in accordance with the provisions of Appendix B.
7 Inspection rules
7.1 Inspection classification
7.1.1 Delivery inspection
Inspect the product specifications, dimensions and appearance according to the requirements of 5.1 and 5.2, and inspect the peel strength according to the requirements in Table 11 of 5.3.1.
7.1.2 Type inspection
: Type inspection shall be carried out when any of the following situations occurs: 8) Identification of new product production;
b) When the structure, process or material changes; c) During normal production, an inspection shall be carried out once a year; d) When the product is resumed after a long period of suspension; e)
When there is a significant difference between the delivery inspection result and the last type inspection; When the national quality supervision agency or the user makes a request.
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