This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of polyvinylidene chloride (PVDC) sheet casing films for food packaging. This standard applies to polyvinylidene chloride (PVDC) sheet casing films for food packaging made by blow molding and cut, which are used for filling sausage foods. GB/T 17030-2008 Polyvinylidene chloride (PVDC) sheet casing films for food packaging GB/T17030-2008 Standard download decompression password: www.bzxz.net
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of polyvinylidene chloride (PVDC) sheet casing films for food packaging. This standard applies to polyvinylidene chloride (PVDC) sheet casing films for food packaging made by blow molding and cut, which are used for filling sausage foods.

The clauses in the following documents become the clauses of this standard through reference in this standard. For all the referenced documents with dates, all the 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 the referenced documents without dates, the latest versions are applicable to this standard.
GB/T1037 Test method for water vapour permeability of plastic film and sheeting - Cup method (GB/T1037-1987, neｑ ASTME96:1980)
GB/T1040.3 Determination of tensile properties of plastics - Part 3: Test conditions for film and sheeting (GB/T1040.3-2006, ISO527-3:1995, IDT)
GB/T2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling plan for lot-by-lot inspection based on acceptance quality limit (AQL) index
(GB/T2828.1-2003, ISO2859-1:1999, IDT)
GB/T2918 Standard environment for conditioning and testing of plastic specimens (GB/T2918-1998, idtISO291:1977)
GB/T5009.60 Methods of analysis of hygienic standards for polyethylene, polystyrene and polypropylene moldings for food packaging
GB/T5009.122 Determination of residual 1,1-dichloroethane in polyvinyl chloride resins and moldings for food containers and packaging materials
GB/T6672 Mechanical measurement method for thickness of plastic films and sheets (GB/T6672-2001, idtISO4593:1993)
GB/T6673 Determination of length and width of plastic films and sheets (GB/T6673-2001, idtISO4592:1992)
GB9685 Hygienic standard for the use of additives for food containers and packaging materials
GB/T11999 Test method for tear resistance of plastic films and sheets-Elmendorf method (GB/T 11999-1989, idt ISO6383-2:1983)
GB/T12027 Test method for dimensional change rate of plastic films and sheets on heating (GB/T12027-2004, ISO11501:1995, IDT)
GB15204 Hygienic standard for polyvinylidene chloride-vinyl chloride copolymer resin for food containers and packaging materials
GB/T19789 Oxygen permeability test of plastic films and sheets for packaging materials-Coulometer detection method (GB/T19789-2005, ASTM D3985:1995, MOD)

National Standard of the People's Republic of China
GB/T17030--2008
Replaces G13/T170301997
Polyvinylidene chloride (PVDC) flut-film for food packaging
Polyvinylidene chloride (PVDC) flut-film for foodi-packaging2008-06-25Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaAdministration of Standardization of the People's Republic of China
Implementation on 2008-12-01
GB/T 17030----2008
This standard replaces GB/T17030--1997Polyvinylidene fluoride (PVDC) flut-film for food packaging". Compared with GB/T170301997, the main changes of this standard are as follows: stage product grade;
residual amount of solubilizer in technical requirements;
Delete the dynamic friction coefficient (film/film) item: adjust the test conditions of industrial indicators;
The test conditions of water vapor transmission rate are changed from condition A to condition A: The test method of oxygen transmission rate is changed from pressure difference method to warehouse enterprise risk measurement method;
Add product shelf life,
This standard is proposed by China Packaging Federation. This standard is promoted by the National Packaging Standardization Technical Committee. The main drafting units of this standard are: Henan Province Xirun City Shuanghui Industrial Group Co., Ltd., Shantou Jincong Packaging Materials Co., Ltd. National Packaging Product Quality Supervision and Inspection Center (Jinan), China Packaging United Corporation. This standard is replaced by the following versions: G13/[170301997
1 Range
Polyvinylidene chloride (PVDC) sheet casing film for food packaging
GB/T 17030—2008
This standard specifies the technical requirements, test methods, inspection criteria, marking, packaging, transportation and storage of polyvinylidene chloride (PVTC) sheet casing films for food packaging.
This standard applies to polyvinylidene chloride (PVDC) casing films for food packaging (hereinafter referred to as casing films) made of polyvinylidene chloride resin by blow molding and cut for roll-on/roll-off sausage foods: 2 Normative references
The clauses in the following documents are used as clauses of this standard through reference in this standard. For all referenced documents with a specified date, all subsequent amendments (excluding the contents of the survey) 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 referenced documents without a specified date, the latest version shall apply to this standard. (GJ3/T1037 Test method for water vapor permeability of plastic film and sheet, cup method (GB/1037-1087, neASTME 96:19803
G13/T1C40.3 Determination of tensile properties of materials Part 3: Test conditions for film and sheet (GB/7.040.32006, IS0 527 3:-995, IDT3
GB/T2828.1 Sampling inspection procedures by attributes Part 1: Plan for batch inspection of shaft samples based on acceptance quality limit (A.QL) (GB/1 2828. 1--2003, ISO 2859-1:1999,11)'1)(GJ/T2918 Standard environment for the state adjustment and testing of plastic specimens (GB/T2181998,id11S0)291:1977) GB/T5009.60 Standard analysis method for polyethylene, polystyrene and polypropylene moldings for food packaging GB/T5009.122 Determination of residual 1.1:1-aminoethane in polyfluoroethylene resins and moldings for food containers and packaging materials G3/T6672 Plastic films and sheets Mechanical measurement method for length measurement (GB/T6672-2001.idt1S01593:1993GB/76673 Film and sheet - length and width measurement (GB/T6673-200, idt1504592:1992) GB9685 Food containers, packaging materials additives use 1 standard 1989,
G13/T11999 Plastic film and sheet tear test method element method ((G13/T1999idt ISO 6383 2:1983)
GB/T12027 Test method for thermal dimensional change rate of plastic films and sheets (G13/T120272004, ISO115011905.DT3
G35201 Hygienic standard for ethylene-propylene copolymer resins for food containers and packaging materials GB/T19789 Oxygen permeability test method for plastic films and sheets for packaging materials (GB/T19789-2005ASTM D 3985: 195, MOD)
3 Classification
Casing films are divided into printed casing films and non-printed casing films, and printed casing films are divided into composite casing films and surface casing films. 4 Requirements
4.1 Appearance
4.1.1 Pigments of colored casing film should be evenly dispersed, and there should be no color difference, color spots, water lines and wavy color lines that affect the use. GB/T17030-2008
The casing film should be free of pollution, collision, scratches, perforations, overlaps, folds, cancer blocks, bubbles, etc. Impurities and spots with a diameter of more than 1 mm are not allowed in the casing film. The number of impurities and spots with a diameter of less than 1 mm should not exceed 20/tn\.
The joints should be connected with glue that is different from the color of the film. The joints should be flat, and the upper and lower glue sides should overlap. 4.1.4
4. 1.5 The surface of the casing film should be flat, and slight wrinkles are allowed. There should be no obvious ribs and warping, and the end surface should be flat. The tension of the film roll is appropriate, and there is no unwinding phenomenon: the difference between the center line of the film and the center line of the paper core is not less than 4m. 4.1.6 The number of broken ends of the roll should not exceed 2 at most, and the length of each section should not be less than 80m4.2 Printing quality
4.2.1 The printed casing film should be neat, without obvious dirt, incompleteness, and cut lines; the text printing should be clear and complete, and the meaning of the words below No. 5 should not be misunderstood; the printing edge should be smooth; the screen pattern should be clear and uniform, without obvious deformation and incompleteness4.2.2 The overprint error of the printed casing film should comply with the provisions of Table 1. Table 1 Overprint error
Main printing part
Solid printing
Main part
Secondary part
Main part refers to the part of the surface that is reflected on the surface, such as patterns, text logos, etc.4. 3 Specifications and dimensions
Limit deviation
Anilox printing
Unit: meter
The nominal thickness of the casing film is C.C10mm. The thickness of the special specification shall be agreed upon by the supply and demand parties, and the thickness deviation is +0.003mm4.3.1
The width and length of the casing film shall be agreed upon by the supply and demand parties. The width deviation is shown in Table 2. The film roll length is not allowed to have a negative deviation. Table 2 Width deviation
Allowed deviation D
4.4 Physical and mechanical properties
The physical and mechanical properties of the casing film shall comply with the requirements of Table 3 100
Table 3 Physical and mechanical properties
Tensile strength/MPa
Gradual elongation/Xing
Tear resistance/N
Heat shrinkage/%
Water vapor transmission rate/_/(m, 24 ）
Oxygen remote permeability/Lcr\/(*21 h·0.↓ MPa)』2
Inner printed casing film
Pei printed casing film
Non-ear brush casing film
Unit is meter
15~·-30
—15-- --30
4.5 Hygienic indicators
4.5.1 The additives used in the production of casing film shall comply with the provisions of GB 9685. 4.5.2 The content of vinylidene chloride and vinyl chloride in casing film shall comply with the provisions of G1315204. 4.5.3 Other hygienic indicators of intestinal surface film shall comply with the requirements of Table 4. Table sanitation index
Residue of hair/(mg/1.)
Distilled water (35,35mn)
4% acid (95C.30min)
20% ethanol (20,2h)
n-hexane (20,2b)
Calcium rust consumption plate (distilled water, 96@80mim)/(mg/L.) Electrophoretic acid (in terms of P)%z acid 95,3amin)/(ng/) Decolorization test
Note 1: Natural color sausage casing is not decolorized by magnetism, no foaming liquid
Signal 2: Sanitary index of printed sausage surface membrane is used as the sanitation index of the food contact layer 4.6 Solvent Residue
The solvent residue of printed casing film shall meet the requirements of Table 5. S
5 Test Method
5.1 Sample
Sealant Residue
Residue of Solvent
Table 5 Solvent Residue
GB/1 17030—2008
Unit: grams per square
Remove 4 layers from the surface and take 20 layers as test samples. The width of the sample should be less than 150mm. From the film roll of casing film
5.2 Sample Conditioning and Test Standard Environment The sample condition conditioning and test environment shall be carried out in accordance with the standard environment and normal deviation range specified in I3/T2918. The condition conditioning time shall not be less than 4h, and the test shall be carried out in a comparative environment
5.3 Appearance
5.3.1 Test the appearance quality of casing film under natural light. Use a steel ruler with a minimum graduation value of 0.5mm to measure the deviation between the center line of the film roll and the center line of the paper core. Use a 10x magnifying glass to measure the diameter of impurities and carbonization points in the casing film. Visually inspect the printing quality under a 40W fluorescent lamp:
5.3.2 Under a 40W fluorescent lamp, use a 20x scale microscope with an accuracy of 0.0]1nm to measure the overprint error between any two colors in the main part and the secondary part of the sample, and measure three points each. Take the average value as the overprint error of the main part and the secondary part. 5.4 Specifications
5.4.1 Thickness is carried out in accordance with GI3/T6672, and the original deviation is calculated using the maximum and minimum thickness test values. 5.4.2 Length and width are selected in accordance with GB/T6673. 5.5 Physical and mechanical properties 5.5.1 Tensile strength and elongation at break According to the provisions of CB/T 1040.3. Use 2 types of samples, the width of the sample is 15 mm ± C.1 mm: the length is less than 15 cm, the distance between the test clamps is [Gcrmm + l mm, the test speed (no load) is 250 mm/min ± 25 mm/min, the results are averaged 3 GB/T 17030-2008, and integers are guaranteed. 5.5.2 Tear force According to the provisions of G3/T11999 in reverse order 5.5.3 Thermal shrinkage According to the provisions of GB/T12027. The heating medium is air, the test temperature is 120℃±2℃, and the test time is 30min. 5.5.4 Water vapor transmission rate
is carried out according to GB/T1037, using condition A, the temperature is 38℃±0.6\C, the relative humidity is 90%±2, 5.5.5 Oxygen transmission rate
is carried out according to GB/T19789, the temperature is 23℃±2℃ 5.61 Health index
5.6.1 The determination of the residual amount of ethylene monomer and vinyl chloride monomer is carried out according to G3/T5009.122. 5.6.2 The determination of the consumption of condensation, high manganese potassium and heavy metals is carried out according to G3/T5909.60. 5.6.3 The decolorization test is carried out according to GB/T5009.65. The soaking condition for 20% ethanol is 20℃, 2h; the soaking condition for genuine color burning is 20℃.2h; the soaking condition for 4% Z is 95℃, 30min; the soaking condition for distilled water is 95℃, 30min. After the test, the four soaking liquids shall not show any color.
5.7 Residual solvent
5.7.1 Test principle
Based on gas-solid semi-equilibrium! Place a sample of a certain volume in a sealed container. At a certain temperature, the residual organic solvent in the sample is heated and volatilized. After a certain period of time, the gas in the sealed container is quantitatively injected into the chromatograph to determine the quality of the sample. The peak area (or peak height) is determined and the result is expressed in grams per square meter. 5.7.2 Instruments
Gas chromatograph with a flame ionization detector, headspace autosampler or oven. 5.7.3 Chromatographic conditions
5.7.3.1 Chromatographic column: 100% dimethyl ether capillary or 5% benzene-95% polyoxyethylene chromatographic column. Or a chromatographic column capable of separating alcohol, ethyl acetate, isopropyl acetate, ethyl benzene, butyl ether, toluene, etc. 5.7.3.2 The carrier gas is nitrogen with a purity of 99.999%. 5.7.3.3 The temperature is 50℃~150℃. Depending on the situation, the temperature can be either wet or programmed. The detector temperature is 150℃~300℃, the injection port temperature is 0℃~=50℃, the oven or automatic sampler heating conditions are (80℃~100℃)±2℃, and the balance is 30ml. 5.7.4 Reagents
The reagents are analytical grade or chromatographic grade.
5.7.5 Preparation of test samples
Take samples at a ratio of 3cm/ml.~cm2/ml. to the volume of the glass container. Cut the samples into pieces of [0mm×30], put them in a glass container of appropriate volume and seal them. 5.7.6 Preparation of standard samples
Accurately add the appropriate organic solvent, dissolve it in a suitable solvent, and release it at an appropriate concentration. The sample dosage is determined based on the actual residual amount of the test solvent in the sample. If the sample solvent content is not within the standard range, re-adjust the solvent to the standard range.
5.7.7 Determination method
Use the standard curve method. Take at least five different amounts of organic solvent standard samples, put them into glass containers with the same volume as the test sample, seal them, and place them in an oven to balance them in a dynamic sampler (such as equilibrium temperature 00, 3 μm/s during sampling). Use a preheated syringe at the same temperature (generally 111. According to the sensitivity of the instrument) or a dynamic sampler to sample, use a gas chromatograph to obtain the peak area (or peak height), and draw a standard curve between the peak area (or peak height) and the corresponding organic solvent mass. The linear correlation coefficient is required to be greater than 0.99%.
5.7.8 Test steps
GB/T17030—2008||t t||Place the sealed glass container containing the test sample in an oven or automatic sampling oven, and keep it in equilibrium with the temperature and time of the standard sample. Use an injector that has been pre-heated to the same temperature as the oven to automatically sample the sample. The glass container is filled with the standard sample and the standard sample. According to the product of the peak of the test solvent in the test sample (peak height), the mass of the solvent in the test sample is calculated from the standard line and calculated according to formula (1): x--the residual amount of the solvent in the sample, in milligrams per square meter (mg/m2); m--the mass of the test solvent, in milligrams (g); W-the surface area of ​​the test sample, in square meters (m\). 6 Inspection rules
6. 1 Batch
The acceptance of the film coating is based on batches. The film coating produced with the same brand and batch of resins produced by the same enterprise and under the same process conditions is considered a batch.
6.2 Sampling
6.2.1 The specifications and external gauge samples of casing membranes shall be subject to the normal inspection in (13/T 2828.1) and the secondary sampling shall be filed. The inspection level shall be II and the acceptance quality index (AQI) shall be 6.6. The sampling inspection shall be carried out according to the provisions of Table 6. Table 6 Sampling and judgment plan for specification and appearance inspection Batch
51--90
01--150
_61--28
21---500
501~-1200
1 201--3 200
3 201---10 303
Sample
Ac
Receiving number Re
6.2.2 Physical and mechanical properties and lower indicators, solvent residue items, randomly select a roll of film from the batch production for inspection, 6.3 Inspection plan
6.3.1 Factory inspection
The inspection items of casing film factory H are 4.1.1.2, 1.3.5
G3/17030—2008||t t||6.3.2 Type inspection
Type inspection is all items in the requirements of Chapter 1. Type inspection is required in any of the following situations; new products or old products are tested for trial production in the factory: a)
b) In normal production, the test is conducted once a year; When there are major changes in the formula or process:
(1) When production is resumed after a six-month suspension;
When the test results are significantly different from those of the last type inspection; e) When the quality supervision agency raises the inspection requirements. 6.4 Judgment rules
6.4.1 If one of the inspection results of the appearance and size of the two-layer film does not meet the requirements of this standard, the product of this volume is judged to be unqualified. The qualified batch is judged according to Table 6.
6.4.2 If the results of various tests on physical and mechanical properties meet the requirements of this standard, the physical and mechanical properties of the batch are considered qualified; if there are unqualified items, the batch is considered unqualified after double-sample retest. 6.4.3 If there are any discrepancies in the results of the sanitation index and the residual agent test, the batch of products shall be judged as unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The product shall be accompanied by a certificate of conformity. The product name, category, specification (length, width, thickness), shelf life, manufacturer, factory address, production date, inspector's seal, batch number, implementation standard, and product color shall be noted on the product certificate or instruction manual. 7.2 Packaging
The casing film is packed in a cardboard box with a plastic lining. The rolled casing film is packed into the carton in the vertical direction of the core tube. The cut edge of the lining is tied tightly: the carton is sealed with tape. Special packaging shall be negotiated by the supply and demand parties. 7.3 Transportation
The product should be placed gently during transportation, and should not be exposed to mechanical damage and rain. It should not be transported together with toxic and harmful substances. 7.4 Storage
The product should be stored upright in a dry warehouse that is not exposed to direct sunlight. The warehouse temperature should be between 10℃ and 30℃. The cartons should not be damaged, and it should not be stored together with toxic and harmful substances. The product should be stored in a cool and dry warehouse from the time of production! The shelf life is 18 months. Products that have exceeded the shelf life can be used after passing the insurance inspection.
GB/T17030-2008
People's Republic of China
Gongli Medical
National Standard
Polyvinylidene chloride (PYI) C) sheet casing film for food packaging
GB/T 17030--20G8
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