Some standard content:
National Standard of the People's Republic of China
Inner packaging materials for protective packaging
Inner packaging materials In preseryatlon1 Subject content and scope of application
G3 12339---90
This standard specifies the classification, technical requirements, test methods, inspection rules, etc. of inner packaging materials for protective packaging. This standard applies to inner packaging materials selected according to G34768 "Technical Requirements for Anti-Burn Packaging", GB4879 "Rust-proof Packaging" and GB5U48 "Moisture-proof Packaging" for products such as machinery, electronics, electrical appliances, instruments, hardware tools, etc. 2 Reference standards
GB 1$1
GH 455
GB1037
GB1040
Picture mark for packaging and storage
Taking of paper and paper samples
Preparation of samples before testing
Determination of tensile strength and elongation of paper and paperboard
Determination of tear resistance of paper and paperboard
Determination of moisture content of paper and paperboard
Test method for water permeability of plastics
Tensile test for plastics. Hall method
Determination of water extract and alkalinity of pulp, paper and paperboard GB 2679.2
Determination of moisture permeability and crease moisture permeability of paper and paperboard (disc method)GB2828
Batch-by-batch sampling and sampling list (applicable to detailed batch inspection)GB4456
GB4768
GI4879
CB5048
GB 10342
Polyethylene blown film for packaging
Technical requirements for anti-microbial packaging
Rust-proof packaging
Moisture-proof packaging
ZBY 28 004
Paper packaging and marking
Plastic film packaging bags Heat seal strength arc determination methodHB5206Test method for contact corrosion of packaging materials on metalsTest method for tear strength of plastics
HG 2 --167
QB868 Anti-rust Paper
3 Classification
3.1 Type and grade
Protection type Inner packaging materials are divided into three types according to their use: the first type is oil-resistant inner packaging materials, which are divided into four grades of A, B, and (.\) according to their structural shape; the second type is non-oil-resistant inner packaging materials, which are divided into three grades of A, B, and C according to their mechanical properties; the third type
special-purpose inner packaging materials, which are divided into grades of A, B, and C according to their use. 3.2 No.
Various types and grades of protective inner packaging materials are divided according to their performance: Approved by the State Technical Supervision Bureau on April 23, 1990 and implemented on December 1, 1990
GB12339-90
The first type of A grade is divided into a1±2a: one, the B grade is divided into two numbers b1 and bz, the C grade is divided into three numbers c12, 3, and the D grade is divided into four numbers d1d2d d.
The second type of A, B, C grades are divided into a1, a2~as, b1, b, and c1, 2, ca, c respectively. The third type of A grade is divided into three numbers a1, a2, a:, and the B and C grades are not divided. 3.3 Display method
Example: 1Aai represents the first type of protective inner packaging material A grade a1. 3.4 Examples and uses
Examples and uses of various grades and types of protective inner packaging materials are shown in Table 1. Table 1 Examples and uses
1 Oil-recovery
Inner material
Aluminum-plastic cloth-based composite materials
Aluminum-plastic composite materials
Aluminum-plastic platform materials
Plastic film chain aluminum composite materials
Calcium-plastic paper-based composite materials
More than five layers: composite or co-extruded plastic film
Less than five layers of composite or co-extruded plastic film
Various plastic positive [paper
Intelligent processing grade
Base material for various
Various belts
Various paper-based
Polyvinylidene chloride film
Vinyl (or propylene)
Polyvinyl chloride film
Main uses
Precision products moisture-proof, rust-proof and
climbing packaging, heat-resistant, long| |tt||Precision product moisture-proof, anti-temptation, anti-|tt|| packaging, heat-sealable, long-term storage
Requires low permeability and moisture-proof when avoiding light, anti-
rust, anti-moss packaging
Requires low moisture permeability and moisture-proof when avoiding light, anti-
temptation, anti-ju packaging
Moisture-proof, anti-temptation, general anti-
For moisture-proof packaging
Prevent mechanical damage when anti-rust
Moisture-proof packaging and packaging fastening
For sealing and packaging
Prevent mechanical damage and anti-rust
Moisture-proof packaging and packaging purple lake
For sealing and packaging
Only for small moisture permeability
For small moisture permeability
For small air permeability
JH F-GB 5048
Climate type
For CB 4879
1Oil resistance
Inner packaging material
2 Non-resistant
Inner packaging materials
3 Special purposes
Inner packaging materials
』Technical requirements
Grade number:Www.bzxZ.net
Oil-proof paper
Imitation parchment paper
T. Industry-standard leather paper
Neutral paraffin paper
Electrode paper
Neutral wrapping paper
Translucent color paper
Cowhide fiber| |tt||Striped pulp paper
Vapor anti-rust paper
Vapor anti-rust film
Vapor anti-adhesive tape
Various inner packaging materials treated with anti-corrosion agents
Other special inner packaging materials such as sodium benzoate paper
Special inner packaging materials for anti-static, anti-magnetic, anti-radiation, etc.
GB 12339—90
Continued Table 1
Main Purpose
Used for general oil-resistant, rust-proof and moisture-proof inner packaging
Precision product parts and components for military industry
Anti-rust packaging for electromechanical products
Anti-rust packaging for various commodities
Anti-rust packaging for special requirements, such as sodium formate| |tt||paper, when used for metal anti-rust packaging, contact anti-rust
special purpose
for GB5048
climate type
4.1Protective inner packaging materials should be flat, uniform, and clean on the surface. All technical indicators should meet the requirements of Table 2.4.2Shape and size
For GB4879
A, C
The shape of protective inner packaging materials is half sheet or roll. For products with national standards or industry standards, the standards shall be followed. For products without standards, the order contract shall be followed. Mechanical properties
Test items
Corrosion resistance
Water, %
Water extraction pH value
Ketone resistance
GB12331-90
Table 2 Technical requirements for protective inner packaging materials
Moisture permeability, R/m2.24h
Tensile strength, kN/m
(weak direction) (kgf/15mm width)
Burst resistance, kPa
(kgf/15mm width)
Tear strength, mN
(cat direction) (gf)
Breaking K, m
(longitudinal direction)
Heat aging
|Low temperature flexibility
Heat sealing strength, N
Oil resistance at heat seal
Water permeability at heat seal
Adhesion
(10#）
No change in shape and material, size tolerance ±2%No change in shape and material, size tolerance ±2%5.88
No stain
No stain
No stain
No stain
No stain
No stain
No stain
No shape change
Not more than · level
No stain on the test piece
(160）
No stain on the test piece
No stain on the test piece
BO ~120
(0.6)(0.5)
GB 1233$-90
Continued Table 2 Technical requirements for protective inner packaging materials 2
8000500
Not more than...
6 ~ 12
(2.2) (1.4)(0.8)
Except for the corrosiveness, moisture, and water extract value, other test items may be implemented according to the product industry standard
Not more than Class I
Required test items shall be in accordance with the relevant standards
, such as (OB Yang.
No provisions are provided by the two parties
5 Test methods
5.1 Sampling and pretreatment
GB 12839—90
Test the first type of A-level a1, a3, B-level, D-level, the second type, the third type of protective inner packaging materials according to GB450. Test the first type of A-level a2, C-level, the third type of A-level a2 protective inner color packaging materials according to GB4456 2.1, 2.2. 5.2 Corrosion
Mainly check whether the inner packaging materials will corrode the metal in contact. According to HB5206. 5.3 Moisture content
According to GB462.
5.4 pH value of water extract
According to GB1545.
5.5 Oil resistance
According to Appendix A.
5.6 Moisture permeability
According to GB2679.2 or GB1037.
5.7 Tensile strength
|The first type of A grade a1, a., B grade, D grade, the second type, the third type of A grade a, a number according to GB453: the first type of A grade a2, C grade, the third type of A grade az number according to GB1040. 5.8 Burst resistance
According to GB454.
$.9 Tear strength
The first type of A grade a1, a number, B grade, D grade, the second type, the third type of A grade a1, 8 number According to GB455, the first type A az, C and the third type A a2 shall be carried out according to HG2-167. 5.10 Bag breaking length
According to GB453.
5.11 Heat aging
According to Appendix C.
5.12 Low temperature flexibility
According to Appendix C.
5. Heat sealing strength
According to 2.BY 28 004.
5.14 Oil resistance at the seal
According to Appendix D.
5.15 Water permeability at the seal
According to Appendix E.
5. 16 Adhesion
According to Appendix F.
6 Inspection rules
6.1 The protective inner packaging materials shall be subject to acceptance inspection and type inspection. 6.2 Acceptance inspection shall be carried out in accordance with the provisions of GB2828, with the unit being pieces. The delivery is made up of pieces, and each batch shall not exceed 30t at most. The sampling plan for acceptance inspection and the batch quality judgment shall be in accordance with Table 3. The inspection level in Table 3 shall be in accordance with the product standards or according to the contractual provisions. Batch
Inspection level
1～15
16 - 25
91 150
1～25
26 - 90
91~280
281 500
1～25
01 500
GB 12339--90
Table 3 Sampling plan for acceptance inspection and sampling plan for batch quality judgment
51~150
151~3200
501 ~ 3 20113 201 ~1 000 0
6.8 Type inspection should be carried out when any of the following circumstances occurs. a.
During continuous production, conduct sampling once every six months
Secondary sampling of positive belts and withdrawal of water and half of the samples determined by batch disc
Class C unqualified:
When the raw material variety, brand and key process conditions are changed, which may affect the product performance: c.
When the production is resumed after a long-term suspension of the product: d.
When the results of the delivery inspection are significantly different from those of the last type inspection e.
When the national quality supervision agency makes a request. R.
Unqualified classification
Unqualified
Corrosive water
Extract pH
Magnetic resistance
Oil resistance
Unqualified
Other inspection items except Japanese type
6.4 The items listed in Chapter 4 of this standard are all acceptance inspection and type inspection contents, and the specific implementation can be carried out according to product standards or contract provisions. 6.5 The manufacturer and supplier shall ensure that the protective inner packaging materials produced meet the requirements of this standard, and each product shall be accompanied by a quality certificate when delivered.
6.6 The user has the right to inspect the product quality. If there is any objection to the batch quality, the manufacturer shall be notified to conduct a joint re-inspection within three months after arrival or according to the contract provisions. The re-inspection can be entrusted to the inspection department of the next level. If it does not meet the quality qualification level, it will be judged as a batch unqualified. Marking, packaging, transportation, storage
7.1 Packing and marking shall be carried out in accordance with GB10342. The manufacturer's name, product name, trademark, product variety and code, manufacturing period and production batch number (or serial number) shall be marked on the label. It must be ensured that the plastic film with a thickness greater than 0.10mm and two or more layers of leather paper with a weight greater than 80g/m2 are used for packaging. The four sides or both ends of the roll should be sealed or tied.
The type, grade and number of the exported product packaging shall be clearly printed or written on the plastic film. Such as 1Aa, 2Bbz, 3Aa.
7.2 According to GB191, use the "Handle with Care" and "Prevent" signs. 7.3 Transportation and Storage
The protective inner packaging materials should be loaded and unloaded gently and protected from sunlight and rain. Store in a clean and ventilated warehouse, not less than 1m away from heat sources and not less than 0.3m from the ground.
GB1233990
Appendix A
Oil resistance test method
(Supplement)
A1 Oil resistance test method is used to check the oil resistance of the first type and levels of protective inner packaging materials. A2 Reagent
Take 100mL of turpentine, add 5% of anhydrous calcium chloride and 1% of oil-soluble red pigment in accordance with GB320%, cover the container lid, stir well, let it stand for 10 hours, and filter it with symptomatic filter paper in accordance with GB1915. Take 100g of the above filtrate, add 25% of lithium-based grease to the first type A, 13, and C grade materials; add 200% of mineral oil with a viscosity of 75-205 to the first type 1) grade material, shake and mix well until the grease or mineral oil is completely dissolved to use as a reagent. A3 Test Piece
Take the first type of material sampled and pre-treated according to 5.1, cut 10 pieces of 100m × 101mm test pieces, fold them in the direction of the # line with the oil-resistant surface as the inner side, and place them on the plate glass. Place a static load with a bottom diameter of 100㎡m and a mass of 2500g at the fold point 11. After 30, remove the load, open the test piece, and repeat the above operation at the other diagonal fold point. This test piece is used as the test piece for this test. A Operation
Place the test piece prepared in Chapter A3 with the oil-resistant surface facing up on the circular color qualitative filter paper with a diameter of 150m. All edges of the test piece are tightly fitted with the filter paper below, and a metal ring with an outer diameter of 145mm±2mm, an inner diameter of 90mm±2mm, and a weight of 100~250g is placed at the intersection of the folds.
Put a bottomless mesh cylinder with an inner diameter of 25mm and a length of 25mm on the intersection of the folds of the first type A, B or C grade protective inner packaging test piece. Put in sand 5B that passes the standard sieve gauge chain sieve of 840um but does not pass 490μum, and use a dropper to drop the reagent of Chapter A2 on the sand (the first type D grade does not use sand, and the reagent of Chapter A2 is placed at the intersection of the folds). After leaving it for 24 hours, use the naked eye to observe whether there is any oil stain on the inner side of the color filter paper. The operation should be carried out in an environment of 20+2℃ and relative humidity of 60% to 70%. Appendix B
Heat aging test method
(Supplement)
Put it according to 5.1. Cut 10 pieces of 250mm×300mm from the longitudinal and transverse directions of the sample for sampling and pretreatment, for a total of 20 pieces. Place the first type A grade in a blast oven at 70±1℃ and the first type B grade in a blast oven at 59±1℃, with the short side facing downwards. Be careful not to contact the bottom of the oven. After 336h (14 days), place it in a constant temperature oven with a temperature of 23+2℃ and a relative humidity of 45%~55% for 24h, and then check the surface of the test piece for any abnormal phenomena such as delamination, cracks, bubbling, melting, and rupture visible to the naked eye, and measure the longitudinal and transverse dimensions.
GB 12339--90
Appendix C
Test method for low temperature flexibility
(Supplement)
Ten pieces of 100mm×300mm test pieces are cut from the samples sampled and pre-treated according to 5.1, and a total of 20 pieces are obtained. The first type A is placed at -30±5℃, and the first type B is placed at -5±2℃. After 3 hours, take out and place at room temperature. When the test piece returns to room temperature, fix the two ends of the test piece on a steel rod with an outer diameter of 6mm and bend it. If the test piece is oil-resistant on one side, the oil-resistant side is on the inside, and the steel plate is used as the axis to wrap 360 degrees along the long direction of the test piece for 3 turns. Open the test piece and check the corners with the naked eye. Appendix D
Test method for oil resistance at heat sealing station
(Supplement)
Ten pieces of 150mm×200mm samples are cut from the samples sampled and pre-treated in accordance with 5.1. Every two pieces of oil-resistant surface are placed together, and the 150mm side is heat-sealed, and the 200mm sides are heat-sealed. The sealing width is more than 10mm, and 5 bags are made. 8ml of oil solution is injected into each bag. The oil solution is an oil solution in which 1g of red oil-soluble material is dissolved in every 100ml of No. 2 lubricating oil that meets the requirements of Table B5 of GB4879. Squeeze out the residual air in the bag by hand and seal it. Then clamp the sealed bag between two white filter paper cylinders with a diameter of more than 150m and place it on the glass. Add a load of 10 ng to the bag, place it in a 70±2℃ desiccator together with a porcelain plate, take out the bag after 7 hours, and observe with naked eyes whether there is oil leakage on the white filter paper. Appendix E
Test method for water permeability at heat seal
(Supplement)
E1 Reagent
Add 1 penetrant T (amber acid lipid sulfonate) and 1% velvet green BC (called reagent a, for 1 type A material) or 1 polysaccharide red B (called reagent b, for 1 type B material) to 98mL distilled water, shake well to mix and dissolve. Dilute one part of the mixture with 4 parts of distilled water as a reagent. E2 Test piece
Make 5 bags as described in Appendix D.
E3 Operation
Put the thin flakes of white qualitative filter paper into the small bag of Chapter F2, filling it up without breaking the bag, and seal the bag. Then, immerse the sealed small bag in the reagent prepared according to E1 at 20±2℃, with the bag 25mm from the liquid surface. Take it out after 24 hours, open and seal it, and check it with meat. The self-rising paper is not full of stains. GB12339-90
Appendix F
Adhesion test method
(Supplement)
F1 The adhesion test is used to check whether the first type A and B grade of protective inner packaging materials are mutually bonded when any surface overlaps.
F2 Operation and judgment:
Take 20 pieces of 100mm×100mm samples from the samples sampled and pre-treated according to 5.1, overlap the oil-bearing surface of any two pieces and overlap the oil-resistant surface and the other surface for five groups each. The first type of A material is placed in an oven at 70 ± 1 ℃, and the first type of B material is placed in an oven at 59 ± 1 '℃. They are placed flat on a flat plate. A piece of wool with a size of 50mm×50mm and a thickness of 5mm is placed in the middle of each group. A load of 5000g is placed on the wool. After 20 hours, the load and wool are removed, and the two pieces of each group are combined. Check whether the test piece has peeling and cracking visible to the naked eye. Additional remarks:
This standard is proposed by China Packaging Corporation. This standard is exported by the Science and Education Department of China Packaging Corporation. This standard is drafted by the 621 Institute of the Ministry of Aeronautics and Astronautics. The main drafters of the standard are Sui Xiangyi, Xiao Huaibin, Zhang Shaoling, Jiao Cuifei, and Zhang Chengzhi. The first type of protective inner packaging material in this standard refers to the Japanese industrial standard JIS Z1705-1976 "Rust-proof and oil-resistant packaging materials".
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