Some standard content:
ICS 55. 040
Packaging Industry Standard of the People's Republic of China
BB/T0012—2008
Replaces BR/T0012—1997
Polyvinylidene chloride (PVDC) coated film
Polyvinylidene chloride (PVDC) coated film2008-02-01Released
2008-07-01Implemented
National Development and Reform CommissionReleased
Announcement of the National Development and Reform Commission of the People's Republic of China
No. 11 of 2008
The National Development and Reform Commission approved 351 industry standards including "Automobile Fuel Consumption Label" (see the attachment for standard number, name and starting implementation date), including 4 automobile industry standards, 253 machinery industry standards, 32 light industry standards, 14 building materials industry standards, 10 textile industry standards, 18 chemical industry standards, 4 ferrous metallurgy industry standards, 3 packaging industry standards, 1 logistics industry standard, 1 pharmaceutical equipment industry standard and 1 rare earth industry standard, which are now announced.
The above machinery industry standards are published by Machinery Industry Press, light industry standards are published by China Light Industry Press, building materials industry standards are published by Building Materials Industry Press, textile, logistics and rare earth industry standards are published by China Standards and Information Publishing House, ferrous metallurgy industry standards are published by Metallurgical Industry Press, automobile, packaging, pharmaceutical equipment and chemical engineering construction industry standards are published by China Planning Press, and chemical products industry standards are published by Chemical Industry Press. Appendix: Numbers, names and starting dates of implementation of 3 packaging industry standards National Development and Reform Commission of the People's Republic of China February 100, 2008
Appendix:
Numbers, names and starting dates of implementation of 3 packaging industry standards Standard number
BB/T 00492008
BR/T 00122008
BB/T 0002—2008
Standard name
Mineral desiccant for packaging
Polyvinylidene chloride (PVLC) coated film
Biaxially oriented polypropylene pearlescent film
Replaced standard number
RB/T 0012—1997
RB/T 0002---1994
Starting date of implementation
2008-07-01
2008-07-01
2008-07-01
Normative referenced documents
Classification and specifications
Test methods
Inspection rules
Marking, packaging, transportation and storage
RR/T 0012—2008
BB/T 0012-2008
This standard is partially based on relevant foreign materials and combined with the actual situation of my country's industry. It is based on measured data and technical data of this industry. Key indicators use internationally recognized test methods. The technical indicators are leading in China and have reached or are close to the international level of the same period. This standard is a revision of BB/T0012-1997 "Polyvinylidene chloride (PVDC) coated film". The main changes are as follows: - The oxygen permeability test method is different. BB/T0012-1997 uses the differential pressure method, and this standard uses the coulometer method. - The water vapor permeability test method is different. BB/T/0012-1997 uses the weighing method, this standard uses the weighing method and the sensor method, and the arbitration uses the weighing method.
Classification method. The original standard was classified only according to the different coating substrates. In addition to the classification according to the different substrates, the current standard is also divided into heat-sealable and non-heat-sealable types according to the different heat-seal properties of PVDC. The specification range is increased = the width is expanded from 70mm~1200mm to 25mm-2500mm; the serial size is expanded from 13um~40um to 9μm~70μm.
This standard is proposed by China Packaging Federation: This standard is under the jurisdiction of National Packaging Standardization Technical Committee. The drafting units of this standard are: Younan Saino International Co., Ltd., Jianjiang Yefeng Plastic Co., Ltd., National Packaging Quality Supervision and Inspection Center (Jinan), Wuxi Boli Packaging Materials Co., Ltd., Foshan Plastic Group Co., Ltd., Henan Weiruizhante Packaging Color Printing Co., Ltd.
The main drafters of this standard are: Xie Wenbo, Shen Zhihui, Liu Cheng, Hu Jianqiang, Li Qiuhe, Zhang Guangqiang. This standard replaces RB/T0012-19971 from the date of publication. Scope
Polyvinylidene chloride (PVDC) coated film
BB/T0012-—2008
This standard specifies the classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of vinylidene chloride (PVDC) coated film (hereinafter referred to as coated film). This standard applies to coated films made of biaxially oriented polypropylene (BOPP), biaxially oriented polyester (BOFT), and biaxially oriented nylon (BOPA) films as substrate films and polyvinylidene chloride latex as the main coating. 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 are applicable to this standard. GB/T191 Packaging storage and transportation pictorial mark
GB/T1037 Test method for water vapor permeability of plastic film and sheet-cup methodCB/T1040.3 Determination of tensile properties of plastics Part 3: Test conditions for film and sheet H (eqVIS0527-31995)
GB/T2410 Test method for light transmittance and haze of transparent plastics (eqVASTMD1003:1977)GB/T2828.1 Sampling inspection procedure by attributes Part 1: Sampling method for batch inspection based on acceptance quality limit (AQL) (eqv ISO 2859-1: 1999)
GB/T2918 Standard environment for conditioning and testing of plastic specimens CB/T50K)9.60 Analysis of polyethylene, polystyrene and polypropylene moldings for food packaging by force method GB/T5009.122 Determination of residual 1,1-dichloroethane in polyvinyl chloride resins and moldings for food containers and packaging materials GB/T6672 Determination of thickness of plastic films and sheets by mechanical measurement method (idtIS04593:1993) CB/T6673 Determination of length and width of plastic films and sheets (idtISO4592:199 2) CB9688 Hygienic standard for polyolefin molded products for food packaging GB/T10006: Determination of friction coefficient of plastic film and sheet (idt ISO8295:1986) GB/T13113 Hygienic standard for poly(p-butylene glycol) molded products for food containers and packaging materials GB/T14216 Wetting tension test method for plastic film and sheet (eJV ISO8296:1987) GB/T16332 Hygienic standard for nylon molded products for food packaging materials Oxygen permeability test for plastic film and sheet for packaging materials Coulometer test method (MODASTM ECB/T 19789
3985:1995)
1S015106:, Plastic film and sheeting - Determination of water vapour transmission rate - Part 1: Humidity detection sensor method Plastic film and sheeting - Determination of water vapour transmission rate - Part 2: Infrared detection sensor method IS0 15106: 2
IS015106:3 Plastic film and sheeting - Determination of water vapour transmission rate - Part 3: Electrolytic detection sensor method BB/T 0012-2008
3 Classification and specification
3.1 Classification
According to the heat sealing performance of PYDC, it can be divided into heat sealing type and non-heat sealing type; according to the base film, it can be divided into BOPP coated film, BOPET coated film and BOPA coated film.
3.2 Specifications
Thickness range: 9μum~70μm;
Width range: 25mm~2500mm
Special specifications shall be agreed upon by both parties.
4 Requirements
4.1 Dimension deviation
Dimension deviation is divided into superior products and qualified products, and shall meet the requirements of Table 1. Table 1 Dimension deviation
4.2 Appearance
Width deviation
Length of each section
University deviation
Average thickness deviation
Width less than or equal to 5(0irur
Width greater than 500mm
Number of joints.Pieces/roll
Roll length is less than or equal to 1000m
Roll length is greater than 1000m ~ 2000m
Roll length is greater than 2000m
Thickness 9um~29um
Mask thickness is greater than or equal to 30μm
Thickness 9μml ~ 29μrm
Thickness is dry or equal to 30μm
The appearance is divided into superior products and qualified products, and should meet the requirements of Table 2: Table 2 Appearance requirements
End face winding unevenness, mn1
Color
Film wrinkle protection
Film surface pollution
Coating layer
Coating stripes
End face scratches, missing coating
Superior products
Superior products
Not allowed
Not allowed
Allowed
Allowed
Qualified products
Extruded products
Minor serious
4.3 Mechanical properties
The mechanical properties of the coating film shall meet the requirements of Table 3. Table 3 Physical and mechanical properties
BOFP coated film
Tensile strength, MFE
Break length, %
Heat shrinkage, %
Haze, %
Coefficient of friction (coating/coating)
Lubrication tension (limit), rnN/m
Heat sealing strength, N/15mm
Water vapor permeability, (㎡224h)
Carrier gas permeability, cm24l)
4.4 Hygiene performance
Heat sealing type
Non-heat sealing
Heat sealing type
Non-heat sealing
Heat sealing type
Non-heat sealing
Heat sealing type
Non-heat sealing
BB/T 0012-2008
HOPET coating film
BOPA coating film
The hygienic properties of the coating film shall comply with the relevant national standards. For products in direct contact with food, the hygienic indicators of BOPP coating film shall comply with GB9688, the hygienic indicators of BOPET coating film shall comply with GB/T13113, and the hygienic indicators of BOPA coating film shall comply with GH/T16332. The fluorinated monomer and the vinyl chloride monomer shall comply with the provisions of Table 4. Table 4 Hygienic properties of vinylidene fluoride monomer and vinyl fluoride monomer Items
Vinylidene fluoride monomer, mks≤
Vinyl chloride monomer, mg/kg ≤
BB/T 0012—2008
5 Test method
5.1 Joint sample
Remove a layer from the surface of the finished film roll, take 10 layers for appearance, specification and physical and mechanical properties inspection, and take about 10m for storage. 5.2 Standard environment for sample state adjustment and test According to the provisions of GB/T2918, the sample state adjustment shall be carried out in a standard environment with a temperature of 23℃±2% and a relative humidity of 50%±10%. The state adjustment shall be not less than 4h, and the test shall be carried out under this condition. 5.3 Width and length
Perform according to GB/T6673.
5.4 Thickness
The thickness shall be measured according to CB/T6672. Take out 5 layers of test specimens from the whole sample, overlap and measure, and the measured value divided by 5 is the thickness at that location. The thickness deviation is calculated using the maximum thickness deviation value; the average thickness deviation is equal to the percentage of the difference between the average thickness and the nominal thickness to the nominal thickness.
5.5 Appearance
Daily measurement is carried out under natural light. The unevenness of the winding before the end is measured with a ruler with an accuracy of 0.5mm. 5.6 Tensile strength and elongation at break
According to GB/T1040.3. Sample: length × width = 150mm × (15mm ± 0.1mm), the distance between the clamps is 100mm, the stretching speed is 200mm/min ± 20mm/min
5.7 Heat shrinkage rate
5.7.1 Test instruments:
a) Blast constant temperature oven:
b) Vernier caliper with the minimum scale value of 0.02mmc) Stainless steel plate;
d) Stopwatch.
5.7.2 Sample: Cut 5 pieces of 120mm × 120mm samples evenly in the width direction of the film roll, mark the middle of the sample 10mm away from the edge in the longitudinal and transverse directions, and accurately measure the length between the marks. 5.7.3 Place the sample flat on the stainless steel plate L in the blast constant temperature oven that has reached the specified temperature, and the stainless steel plate is located in the middle of the constant temperature oven. No air is blown during the test. After the test time is reached, the specimen is taken out and cooled to ambient temperature. The longitudinal and transverse marking lengths are measured. The longitudinal and transverse heat shrinkage rates are calculated according to formula (1) and the arithmetic average of the five specimens is taken. T = (L)/ × 100
Where:
T heat shrinkage rate, %;
L, length before heating, mm;
L, — length after heating, mm.
5.7.4 Temperature and time control:
a) Coating film with B0PP as substrate, temperature 120℃±2℃, heating time 2min; b) Coating film with B0PET as substrate, overflow 150C±2, heating time 30min4
.--+ (1
c) Coating film with BOPA as substrate, temperature 160℃±2, heating time 5min=5.8 Haze
According to CB/T 2410.
5.9 Friction coefficient
According to GB/T10006
5.10 Wetting tension
According to GB/T14216.
5.11 Heat seal strength
5.11.1 Heat sealer: temperature fluctuation ±2.0%℃. 5.11.2 The heat sealing parameters are set as follows: temperature 127, time 1,06, force 0.14MPa. BB/T0012-2008
5.11.3 Samples: Take 5 samples, heat seal the sample coating surface on the heat sealer, cut them evenly in the width direction of the film roll, the sample width is 15mm0.1mm, the length is 150mm, and the sample coating surface is heat sealed on the heat sealer. 5.11.4 With the heat seal part as the center line, clamp the two ends of the sample on the two fixtures of the test machine respectively. The longitudinal axis of the sample should coincide with the center line of the lower fixture, and the tightness should be appropriate to prevent the sample from slipping and breaking in the fixture. The distance between the optical fixture is 100mm, and the test speed of the tensile machine is 100mm/min±10mm/min. Read the maximum load when the sample breaks at the heat seal. If the sample does not break at the heat seal, the sample is invalid and another sample is taken for re-test. Take the arithmetic mean of 5 samples and express it in N/15mm. 5.12 Oxygen transmission rate (OTR)
According to GB/T19789.
5.13 Water vapor transmission rate (WVTR)
According to GB/T1037 condition B.IS015106.1 or 1S015106.2.IS015106.3, arbitration is carried out according to GB/T1037,
5.14 Hygienic properties
5.14. 1H0PP is carried out according to GB/T 5009.60 5.14.2BOPET is carried out according to CB/T13I13. 5.14.3BOPA is carried out according to GB/T16332
5.14.4 Vinylidene hydride monomer and vinyl chloride monomer are carried out according to GB/T 5009.122. 6 Inspection rules
6.1 Batch
The coating film is accepted in batches. The coating film produced continuously under the same raw materials, the same formula and stable process conditions is a batch, and each batch does not exceed 50t.
6.2 Sampling
Appearance and dimensional deviation shall be carried out in accordance with the normal inspection secondary sampling plan in CB/T2828.1. Each roll is a sample unit, and the general inspection level II is adopted: the acceptance quality limit (AQL) is 6.5, and the physical and mechanical properties and the door performance are cut from any sample to obtain enough samples for testing, see Table 5.
BE/T0012—2008
Batch range
91 ~150
151280
281500bzxZ.net
501 ~1200
6.3 Output! Inspection
Appearance, dimensional deviation inspection sampling and judgment plan sample
Cumulative sample
My small
Factory inspection items include 4.1, 4.2 and 4 to 9 items in Table 3. 6.4 Type inspection
Qualified judgment number, Ah:
Unqualified judgment number, te
Type inspection items are all technical requirements of Chapter 4 of this standard. Type inspection should be carried out when the following situations occur: a)
New product identification or old product transfer and production: After formal production, if the structure, raw materials, and process have major changes,When it may affect the product performance: During normal production, it shall be conducted once a year; When the national quality supervision agency proposes type inspection requirements: When the product is stopped for a long time and production is resumed; When the inspection result is significantly different from the last type inspection. 6.5 Judgment rules
If any item of appearance and dimensional deviation of the coated film is unqualified, the roll shall be unqualified, and the qualified batch shall be determined according to the regulations in Table 5 BB/T 0012-2008
6.5.2 If there is any unqualified item in the inspection result of the physical and mechanical properties of the coated film, double sampling shall be conducted in the original batch, and the unqualified items shall be retested. If the retest results are all qualified, the batch shall be qualified; if the retest results are still unqualified, the entire batch shall be unqualified. 6.5.3 If any one of the hygiene indicators is unqualified, the batch of products shall be judged to be unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The marking shall comply with the provisions of GB/T191.
The film roll or the packaging shall have a certificate of conformity and a registered trademark, indicating the product name, specification, quality, production date, grade, inspection stamp, company name and address:
7.2 Packaging
To be agreed upon by the supply and demand parties.
7.3 Transportation
During transportation, the film shall be handled with care to prevent squeezing, mechanical collision and sunlight. 7.4 Storage
7.4.1 The coated film shall be stored in a clean and dry warehouse: away from heat sources, toxic and harmful pollution sources, and avoid direct sunlight. 7.4.2 The storage period shall not exceed one year from the date of production. 7
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