This standard specifies the classification and form, requirements, packaging methods and markings of shrink film packaging. This standard applies to sales packaging and transport packaging of various products using shrink packaging. GB/T 19784-2005 Shrink packaging GB/T19784-2005 Standard download decompression password: www.bzxz.net
This standard specifies the classification and form, requirements, packaging methods and markings of shrink film packaging. This standard applies to sales packaging and transport packaging of various products using shrink packaging.

C5 55.020
National Standard of the People's Republic of China
GB/T19784—2005
Shrink packaging
2005-05-25 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2005-11-01 Implementation
GB/T1974——2005www.bzxz.net
Shrink packaging is a packaging method that uses a retractable film to wrap various single or multiple items, heats and shrinks them, and makes them close to the packaged items:
This standard is for informational purposes.
This standard was proposed by China National Packaging Development Corporation. This standard was issued by the National Packaging Standardization Technical Committee. The standard was drafted by Zhongcheng Scientific Research Institute, Dahuaner Packaging Machinery Co., Ltd., Zhongzhou Packaging Center Co., Ltd., Zhengnan University, and Haoyou Industry (Suzhou) Co., Ltd. The main drafters of this standard are: Sun Xinlian, Wang Li, Li Yu, Ji Weirong, Lu Jiaping, and Gu. 1 Scope
Shrink packaging
CB/T19784—2005
This standard specifies the classification and form, requirements, packaging methods and markings of shrink film packaging (simplified shrink packaging). The standard is applicable to all types of products sold in sales packaging and transport packaging. 2 Normative referenced documents
The provisions in the following documents become the provisions of this standard through introduction into this standard. The referenced documents with the date indicated later include all subsequent amendments (excluding errata) or revisions and are not applicable to this standard. However, the latest versions of these documents may be used by the parties before the agreement on this standard is reached. Undated references, their exhibition benefits, applicable standards GB/T191 Packaging conditions, permanent marking
G/T4122,1 Packaging terms or terms
GB/T4768 Seasonal color packaging
GH7487.22 Qualitative test methods for unit tax of auxiliary packaging for transport GB/T487S Anti-salvage packaging
GKEOAS Accompanying packaging
GB/T735 Waterproof packaging
G/T1351% Acetylene heat + thin pus | |tt||General Rules for the Disposal and Utilization of Waste and Waste Materials
GB/T1671e
CIBA Protective Packaging Specification
3 Terms and Definitions
H422, the following terms and definitions shall apply to this standard. 3.1
The percentage of shrinkage of the film under the controlled temperature of the machine 3.2
Shrinkage ratio
The ratio of the maximum shrinkage of the fabric to the maximum shrinkage of the mother fabric after the film is shrunk under the controlled temperature 3. 3
Shrinkage tension
Shrinkage tension refers to the tension applied to the packaged object after the film is packaged! 3.4
Shrinkage temperature
Shrinkage shrinks to a certain temperature and stops shrinking at a certain temperature. The temperature within this range is the shrinking box temperature.
4 Packaging form at the end of the package
4.1 When the manufacturer needs to carry out shrinkage packaging, the form of shrinkage packaging of the product should be specified in the product technical documents. 4.2 The form of shrinkage packaging should be determined based on comprehensive factors such as product quality, quality inspection, volume, and transportation environment. 1
≤/Tt9784—2005
Shrink packaging forms are divided into: type, simple type, interference type, national type, tray type and sleeve recovery type (exempt from Table 1), element 1 shrink packaging form
Packing form
Tray
Pattern standard type
Suitable packaging material
JVC.PP.PE
4.4 Shrink packaging sequence selection original plan
Shrinkage index thin stock interval
Preferred shrinkage
Single (periodic) shrinkage
Two-way shrinkage
Double shrinkable
Single (support Cat
sales packaging. Mountain delivery with type shrink packaging.
packaging special-shaped field, use 1. Type collection also installs the benefit type also installs. The case will be packaged, you can choose L-type or sleeve type shrink also installs, female method
e hot knife
strand straight hot knife
cold uniform measure connection heat new will
point natural work, green punching line, short hydraulic, postal material wave rate heat bonding
point steaming small, resignation swelling Xi, cooked German force, energy, wave
out auction and sealed packaging, called the selection of work, type, batch or simple shrink other, collection method
radiation heating
Hot air heating
Steam heating
Heat heating
Fire rack heating
Hot air heating
Steam heating
Hot water dynamic heating
Requires full re-determination of the contents, and has absolute impact resistance during transportation, and is suitable for dynamic and impact-resistant waybill packaging. It can be shrink-wrapped in pillow-type four-way manner,
Used to preserve fresh food, require low-quality goods (food, medicine), and can choose pallet or folding tray shrink packaging. For heavy goods, to ensure that there is no damage during transportation, it can choose folding tray shrink packaging. For container labeling, it can be sent to the sleeve label shrink packaging machine. 5 Requirements
5.1 General requirements
5.1.1 Determine the shrinkage and adjustment form, and package it according to the form requirements to achieve the expected effect. 5.1.2 The modified packaging with water distribution requirements shall comply with the relevant provisions of B/7350. 5.1.3 The packaging should be used for external packaging. When used, it is required to select anti-rust packaging, anti-corrosion packaging and standard packaging for product storage and transportation, and comply with the relevant provisions of GB/T504K, T/T4879, CR/T472%. 5.1. The packaging should ensure that the packaging will not be broken during transportation, causing loss or damage. 5.1.5 After shrink packaging, the product package should be kept intact and not damaged. 5.2 Material requirements
5.2.1 The shrink packaging material should have better heat resistance and shear strength: 5.2.2 The thickness of the shrink film should be uniform, and the heat resistance and shrinking temperature should be suitable for the packaged product. 5.2.3 The shrinking speed in the longitudinal direction is generally about 50%; the shrinking rate of a single shrinking stock is 23~50%. The shrinkage rate, shrinkage ratio and other indicators should comply with the relevant provisions of GB/T1351U2
5.2.4 The relationship between shrinking temperature and shrinkage rate can be found in Appendix 4 to select packaging materials. CB/T197842005
5.2.5 When selecting materials, the shrinkage, elongation, lubricity, transmittance and optical properties of the materials shall be determined according to the requirements of new packaging products. The physical and mechanical properties shall comply with the relevant provisions of GBT13519. 5.2.E For food products that are directly connected to the shrink packaging materials, shall the shrink packaging materials comply with the relevant production standards? When shrink packaging samples are used to package waste, the relevant provisions of (1H/16716) should be kept on the material disposal surface. 5.3 Environmental requirements
5.3.1 Operating environment
The packaging operating environment should be clean, ventilated and pollution-free. 5.3.2 Sanitary environment
The shrink warehouse should be equipped with relevant safety regulations. 6 Shrink packaging method
6.1 Preparation of shrink packaging
6.1.1 Product
Determine the sensitivity of the product to changes during packaging and its compatibility with packaging materials. 6.1.2 Materials
The selected materials should be subjected to shrink packaging tests to examine the shrinkage and the impact of the packaging materials on the product. 6.1.3 Equipment
Select appropriate products for shrink packaging. Shrink packaging machine. 6.1.4 Heating speed
According to the adaptability and material of the production, the heating can be selected: electric heating, gas heating, water heating and flame, and the temperature and temperature can be adjusted according to the nature of the heat source.
6.2L type shrink packaging
Use folded PVC, PF, PP bidirectional shrink film, after completing the horizontal and vertical shrinking, the shrinking machine completes the shrinking package: after the package is inspected, the film is evenly shrunk, flat, without load, without damage, and the items are connected. 6.3 Simple shrink packaging
Use upper and lower PVC.PE single film to form an equal makeup, and then seal or overlap, and the shrinking package is completed: after packaging, the film is evenly shrunk, flat, without damage, and the two shrink lines are tightened! The joint part is firmly fixed 6.4 Pillow type shrink packaging
Small items use a single roll of thin film to pass through the former for horizontal sealing, and then pass through the heat shrink packaging machine to complete the packaging. The thin film shrinks evenly, without damage, half-rolled, wrinkled, and the sealed and cut parts are produced. The larger items are then put through the former for horizontal sealing, and then through the heat shrink packaging machine to complete the shrink packaging. The packaging convex film shrinks evenly, without plating damage, and is tight. The sealed parts are secured by marking or connecting.6.5 Four-way shrink packaging
Use the upper and lower two pieces of film to wrap and secure the four parts: forming a seal: completing the shrink packaging through the heat shrink packaging machine, after packaging, the thin film shrinks evenly, without damage, half-rolled, and wrinkled, and the sealed parts are secured. 6.6 Foil packaging for pallets
Place the pallet goods on the conveyor and put them on the PF unit. Then use the heat shrinking machine to complete the box position. After loading, the film shrinks evenly, is flat, and has no cracks. The pallet ends are tight: 6.7 Label packaging
Use the hand-made or cut labels to cover the bottles. Then use the heat shrinking packaging machine to complete the packaging. The packaging is thin, even, and relatively flat. The label position is indicated. 3
CB/T19784--20C5
Test method
7.1 Shrink packaging dynamic performance test
7.1.1 Swing and swing test
Test the sample packaging according to the transportation environment of the product. Test and shrink packaging and the packaged objects are complete 7.1.2 Impact force test
Test the sample packaging according to the product, and the shrink packaging should be intact. 7.1.3 Pallet packaging stability test
The pallet packaging should be tested in accordance with the provisions of GB/T 4357.22 and meet the relevant requirements. 7.2 Static performance test of shrink film
7.21 Sealing strength test
Test the hot welding seal of GIH145A in reverse order and meet the relevant regulations. 8 Marking
The external marking of the shrink package should meet the relevant provisions of GB/T191A. 1
Appendix A
(Informative Appendix)
The properties of plastic film
The properties of other films can be referred to in Appendix A. : A.1
The shrinkage range of this article is provided for selection
The shrinkage range of this article is provided for selection
The properties of various films
-*·-133
1, 1-2. :
55 -150
1o5-:55
[35~175
115---156
2. 1.-4, 2
1G5·-175
175--205
GB/197E4—2005
0.025.-6.354
0, 4 --3. 5
-05 --3* 5
29~260
2 The relationship between shrinkage benefit and shrinkage rate of the selected packaging materials can be found in Figure A.1. The relationship between shrinkage temperature and shrinkage rate of the selected packaging materials can be found in Figure A.2.
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国A.1 The relationship between shrinkage temperature and shrinkage rate of commonly used shrink films
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