Some standard content:
GB/T 17876-
—1999
At present, the plastic anti-theft bottle cap industry in my country has developed rapidly and has been widely used in the capping of various beverages. However, most enterprises adopt their own enterprise standards or local standards, which are quite different. The formulation of this standard can unify the quality standards of products in the country, which is conducive to improving product quality and safe use level.
This standard refers to similar advanced standards in developed countries abroad, and takes into account some actual domestic conditions. According to the requirements of domestic health and epidemic prevention departments for this product, health requirements are added. This standard is proposed by China National Packaging Corporation. This standard is under the jurisdiction of the National Packaging Standardization Technical Committee. This standard is drafted by Zhuhai Zhongfu Rubber Cap Co., Ltd. The drafting units of this standard are: Hongquan Enterprise (Suzhou) Co., Ltd., Aokoya (Tianjin) Packaging System Co., Ltd., Beijing Jiaduobao Packaging Co., Ltd., and Shanghai Ziri Packaging Co., Ltd. The main drafters of this standard: Qu Ruilian, Xu Zheng, Sun Ce, Yang Yanzhong 508
1 Scope
National Standard of the People's Republic of China
Packaging Container
Plastic Anti-theft Bottle Cap
Packaging volume-Plastic pilferproof closure GB/T17876--1999
This standard specifies the definition, product classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of plastic anti-theft bottle caps for beverages.
This standard applies to threaded plastic anti-theft bottle caps (hereinafter referred to as bottle caps) made of polyolefin as the main raw material and formed by injection molding, hot pressing or other processes.
2 Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T2828-1987Batch-by-batch inspection counting sampling procedure and sampling table (applicable to continuous batch inspection) GB/T4807—1984 Hygienic standard for rubber gaskets (rings) for food GB/T9687—1988 Hygienic standard for polyethylene molded products for food packaging GB/T9688-1988 Hygienic standard for polypropylene molded products for food packaging 3 Definitions
This standard adopts the following definitions.
3.1 Plastic pilferproof closure is made of plastic. After being packaged, it cannot return to its original packaging form after opening. 3.2 Removal torque
The maximum torque required to open the packaged pilferproof cover. 3.3 Breaking torque openingtorque
The maximum torque required to break the pilferproof ring (strip). 3.4 Tamper ring
It is connected by a bridge and is completely disconnected from the cover body after opening. 3.5 Tamperband
It is connected by a connecting bridge and is disconnected from the cap body after opening. 4 Product classification and specifications
4.1 Product classification
4.1.1 Products are divided into single-material bottle caps and multi-material bottle caps according to the materials used. 4.1.2 Products are divided into one-time molding bottle caps and multiple molding bottle caps according to the manufacturing process. 4.1.3 Products are divided into carbonated beverage bottle caps (hereinafter referred to as carbonated caps) and non-carbonated beverage bottle caps (hereinafter referred to as non-carbonated caps) according to their uses. 4.2 Specifications
Approved by the State Administration of Quality and Technical Supervision on September 7, 1999 and implemented on February 1, 2000
GB/T 17876—1999
The specifications of this bottle cap are applicable to standard bottle mouths of bottles with a diameter of 28mm and 38mm, and other bottle mouths agreed upon by the supply and demand parties. 5 Requirements
5.1 Dimensions
The dimensional limit deviations shall meet the requirements of Table 1. Table 1
External dimension limit deviations
Internal dimension limit deviations
5.2 Appearance
The appearance shall meet the requirements of Table 2.
Product surface
Anti-theft ring (strip)
Full molding, complete structure, smooth surface, no obvious shrinkage, bubbles, burrs, defects, uniform color
No black spots, no rust, oil stains and other foreign attachments, no obvious odor. The anti-theft ring (strip) is connected to the cap body with a connecting bridge, and the connecting bridge has no damaging fingers
The printing color of the bottle cap is distinct and clear, and the deviation value of the pattern position of the top surface printing pattern center to the outer diameter center of the bottle cap is not more than 1.5mm5.3 Printing pattern adhesion performance
The printed pattern of the bottle cap should not fall off obviously.
Sealing performance
Sealing performance shall meet the requirements of Table 3.
Without air cap
With air cap
5.5 Thermal stability performance
Thermal stability performance shall meet the requirements of Table 4.
Low temperature resistance performance without air cap
Low temperature resistance performance with air cap
High temperature resistance performance with air cap
5.6 Drop performance
Drop performance shall meet the requirements of Table 5.
No air leakage or cover falling off at 200 kPa
No air leakage at 690 kPa
No explosion or fall off at 1 207 kPa
No explosion or deformation, no liquid leakage when inverted
No explosion or deformation, no air leakage, no liquid leakage, no explosion or fall off when inverted
Impact resistance
Without air cover
With air cover
Impact resistance
5.8 Physical properties of anti-theft ring (strip)
GB/T 17876—1999
The physical properties of the anti-theft ring (strip) shall meet the requirements of Table 6. Table 7
Capping performance
Anti-theft performance
Opening and twisting torque
5.9 Hygienic performance
The hygienic performance of the bottle cap shall meet the requirements of the relevant hygiene standards. 5.10 Grease spill performance
The grease spill performance shall meet the requirements of Table 7,
Grease spill performance
5.11 Safe opening performance
The rotation degree of the bottle cap when unscrewed counterclockwise to release air shall not exceed 120°. 6 Test method
No bursting, no capping, no leakage
No bursting, no capping, no leakage
Bottle cap and cracks do not fall off
After sealing, the cap body and anti-theft ring (strip) do not deform or break. After opening and resealing, the connecting bridge should have obvious damage between 0.6~2.2N·m
No lipids should appear on the liquid surface
Testing instrument: 1.25L plastic soda bottle with matching bottle mouth for gas cap, 0.6L plastic bottle with matching bottle mouth for non-gas cap. 6.1 Dimension test
Inspect with a measuring tool with an accuracy of 0.02mm.
6.2 Appearance test
Observe under natural light or fluorescent light without direct sunlight. 6.3 Printed pattern adhesion performance test
Use adhesive tape to stick on the printed pattern surface of the bottle cap, wipe it with an eraser for 1 minute, then pull the adhesive tape horizontally to observe whether the pattern falls off. 6.4 Sealing performance test
6.4.1 Cut off the anti-theft ring (strip) of the air-free cap, seal it with a rated torque of not less than 1.2N·m, test it with a sealing tester, pressurize it to 200kPa, keep the pressure underwater for 1min, and observe whether it leaks or comes off. 6.4.2 Cut off the anti-theft ring (strip) of the air-containing cap, seal it with a rated torque of not less than 1.2N·m, test it with a sealing tester, pressurize it to 690kPa, keep the pressure underwater for 1min, observe whether it leaks, then increase the pressure to 1207kPa, keep the pressure for 1min, and observe whether the bottle cap comes off. 6.5 Thermal stability test
GB/T 17876--1999
6.5.1 After water is injected into the bottle, it is sealed with a non-gas cap. After being placed sideways in a (4±1)℃ freezer for 24 hours, it is inverted to observe whether the bottle cap is cracked or deformed, and whether the seal is leaking.
6.5.2 After carbonated water containing 4.2±0.1 volume of carbon dioxide is injected into the bottle, it is sealed with a gas-containing cap. After being placed in a (4±1)℃ freezer for 24 hours, it is inverted to observe whether the bottle cap is cracked or deformed, and whether the seal is leaking. 6.5.3 After carbonated water containing 4.2±0.1 volume of carbon dioxide is injected into the bottle, it is sealed with a gas-containing cap. After being placed sideways in a 42℃ constant temperature box for 5 days, it is observed whether the bottle cap is cracked or flying off. 6.6 Drop performance test
6.6.1 After filling the bottle with water and sealing it with an airless cap, place it at (4±1)℃ and room temperature for 24 hours, and then drop it head-down vertically and horizontally onto the concrete floor from a height of 1.5m. Observe whether the bottle cap bursts and whether the seal leaks. 6.6.2 Fill the bottle with 4.2±0.1 volume of carbonated water containing carbon dioxide is then sealed with an air-containing cap, placed at (4 ± 1) ℃ and room temperature for 24 hours, and then freely dropped head-up vertically and horizontally to the concrete floor at a height of 1.5m. Observe whether the bottle cap bursts and whether the seal is liquid.
6.7 Impact resistance test
6.7.1 After carbonated water containing 4.2 ± 0.1 volume of carbon dioxide is injected into the bottle, the air-containing cap is sealed with a rated torque greater than 1.2N·m, and placed at (4 ± 1) ℃ for 48 hours. The samples are divided into 4 groups and tested on a steel ball impact tester (steel ball $41mm, 286g, smooth surface). The steel ball freely falls from a height of 762mm to the bottle cap; vertically to the center of the top; vertically to the edge of the top; at a 45° angle to the edge of the bottle cap; and vertically to the side wall of the bottle cap. Observe whether the bottle cap is cracked or damaged, and whether the bottle cap falls off. 6.7.2 After carbonated water containing 4.2±0.1 volume of carbon dioxide is injected into the bottle, the gas-containing cap is sealed with a rated torque greater than 1.2N·m and placed at room temperature for 48 hours. The samples are divided into 4 groups and tested separately on a steel ball impact tester (steel ball $41mm, 286g, smooth surface). The steel ball is 762mm high and falls freely to the position of the bottle cap: vertically to the center of the top; vertically to the edge of the top: at an angle of 45° to the edge of the bottle cap; vertically to the side wall of the bottle cap. Observe whether the bottle cap is cracked or damaged, and whether the bottle cap falls off. 6.8 Opening and twisting torque test
Seal the cap with a rated torque greater than 1.2N·m, place it at room temperature for 24 hours, and test the opening and twisting torque with a torque meter with an accuracy of 0.1N·m.
6.9 Grease spill performance test
6.9.1 After injecting distilled water into a clean bottle, seal it with an air-free cap, place it at room temperature for 24 hours, shake it for 5 hours, and place it sideways in a 42℃ constant temperature box for 48 hours. From the time of placement, observe the liquid surface in the bottle every 24 hours to see if there is grease. If grease appears, terminate the test. 6.9.2 After injecting carbonated water containing 4.2±0.1 volume of carbon dioxide into a clean bottle, seal it with an air-containing cap, place it at room temperature for 24 hours, shake it for 5 hours, and place it sideways in a 42℃ constant temperature box for 48 hours. From the time of placement, observe the liquid surface in the bottle every 24 hours to see if there is grease. If grease appears, terminate the test.
6.10 Safety opening performance test
After carbonated water containing 4.2±0.1 volume of carbon dioxide is injected into the bottle, the gas-containing cap is sealed with a rated torque greater than 1.2N·m, the bottle cap and the support ring are marked, and the bottle cap is slowly rotated counterclockwise until the air is released, and then stopped immediately. The position difference between the bottle cap and the support ring mark is measured. 7 Inspection rules
7.1 Batch
Products are inspected in batches, and the same specification of raw materials and continuous production on the same production line are considered as one batch, and each batch does not exceed 600,000. 7.2 Sampling
Random sampling is carried out in accordance with GB/T2828, and a secondary sampling scheme is adopted. The sampling inspection level and qualified quality level of size requirements, appearance, printed pattern adhesion performance, sealing performance, drop performance, anti-theft ring (strip) physical properties, grease overflow performance, and safety opening performance shall be carried out in accordance with the provisions of Table 9.
Thermal stability
Printed pattern
Adhesion performance
Dimensional requirements
Sealing performance
Drop performance
Impact resistance
Anti-theft ring (strip)
Physical properties
Grease overflow performance
Safe opening performance
Number of samples
GB/T 17876-1999
Table 9 Bottle cap sampling plan
AQL = 0. 65
Secondary normal sampling plan
Qualified quality level
AQL = 1. 5
Batch ≤ 600,000 pieces
AQL = 4. 0
7.3 Type inspection
Type inspection items are first-article inspections, and the inspection items are all the required items of this standard. Type inspection should be carried out in any of the following situations:
a) Inspection and finalization of new products or old products transferred to the factory for production; b) After formal production, when there are major changes such as materials and processes that affect product performance; c) When production is resumed after being suspended for more than 6 months; d) When major quality problems occur;
e) When the user requests type inspection; f) When the national quality supervision agency requests type inspection. 7.4 Determination of type inspection
The results of type inspection shall be determined according to Table 9. If there is an unqualified item, it shall be judged as unqualified for type inspection. If one of the hygienic performance indicators 5.9 is unqualified, it shall also be judged as unqualified for type inspection. 7.5 Delivery inspection
The delivery inspection items are: size requirements, appearance, adhesion of printed patterns, sealing performance, drop performance, physical properties of anti-theft rings (strips) (if necessary, there may be items agreed upon by both parties). 7.6 Determination of qualified batches
The determination of delivery inspection is carried out completely in accordance with the type inspection. If all items are qualified, the batch of products is judged to be qualified; if one item is unqualified, the batch of products is judged to be unqualified.
8 Marking, packaging, transportation, storage
8.1 Marking
GB/T 17876—1999
8.1.1 When the product leaves the factory, the packaging box should have the product name, specifications, quantity, weight, trademark, full name and address of the manufacturer, packaging box dimensions, and transportation and storage precautions.
8.1.2 The packaging box is attached with a label containing the product batch number, inspection signature, production shift and production date, etc. 8.1.3 A product inspection certificate shall be issued in the packaging box or for each batch of products. 8.2 Packaging
Packing shall be carried out in a clean and dustproof environment. The bottle caps shall be packed in bags that meet the hygienic requirements of food packaging first, and then packed in boxes after sealing. Packaging materials agreed upon by the supply and demand parties may also be used.
8.3 Transportation
The means of transportation must be clean and dry. The weight of the stacked products on the box shall not exceed the bearing pressure of the outer packaging. The transportation process shall be covered to prevent contamination.
8.4 Storage
The product warehouse shall be ventilated and dry, and the temperature shall be kept between 15 and 38°C. If the temperature is below 15°C, the bottle caps shall be placed at a temperature above 15°C for 24 hours before use. During storage, the product shall not come into contact with odorous, corrosive and toxic items. 5141 Group batch
Products are inspected in batches, with the same specification of raw materials and continuous production on the same production line as one batch, and each batch does not exceed 600,000 pieces. 7.2 Sampling
Random sampling is carried out in accordance with GB/T2828, and a secondary sampling plan is adopted. The sampling inspection level and qualified quality level of size requirements, appearance, printing pattern adhesion performance, sealing performance, drop performance, anti-theft ring (strip) physical properties, grease overflow performance, and safe opening performance shall be carried out in accordance with Table 9.
Thermal stability
Printed pattern
Adhesion performance
Dimensional requirements
Sealing performance
Drop performance
Impact resistance
Anti-theft ring (strip)
Physical properties
Grease overflow performance
Safe opening performance
Number of samples
GB/T 17876-1999
Table 9 Bottle cap sampling plan
AQL = 0. 65
Secondary normal sampling plan
Qualified quality level
AQL = 1. 5
Batch ≤ 600,000 pieces
AQL = 4. 0
7.3 Type inspection
Type inspection items are first-article inspections, and the inspection items are all the required items of this standard. Type inspection should be carried out in any of the following situations:
a) Inspection and finalization of new products or old products transferred to the factory for production; b) After formal production, when there are major changes such as materials and processes that affect product performance; c) When production is resumed after being suspended for more than 6 months; d) When major quality problems occur;
e) When the user requests type inspection; f) When the national quality supervision agency requests type inspection. 7.4 Determination of type inspection
The results of type inspection shall be determined according to Table 9. If there is an unqualified item, it shall be judged as unqualified for type inspection. If one of the hygienic performance indicators 5.9 is unqualified, it shall also be judged as unqualified for type inspection. 7.5 Delivery inspection
The delivery inspection items are: size requirements, appearance, adhesion of printed patterns, sealing performance, drop performance, physical properties of anti-theft rings (strips) (if necessary, there may be items agreed upon by both parties). 7.6 Determination of qualified batches
The determination of delivery inspection is carried out completely in accordance with the type inspection. If all items are qualified, the batch of products is judged to be qualified; if one item is unqualified, the batch of products is judged to be unqualified.
8 Marking, packaging, transportation, storage
8.1 Marking
GB/T 17876—1999
8.1.1 When the product leaves the factory, the packaging box should have the product name, specifications, quantity, weight, trademark, full name and address of the manufacturer, packaging box dimensions, and transportation and storage precautions.
8.1.2 The packaging box is attached with a label containing the product batch number, inspection signature, production shift and production date, etc. 8.1.3 A product inspection certificate shall be issued in the packaging box or for each batch of products. 8.2 Packaging
Packing shall be carried out in a clean and dustproof environment. The bottle caps shall be packed in bags that meet the hygienic requirements of food packaging first, and then packed in boxes after sealing. Packaging materials agreed upon by the supply and demand parties may also be used.
8.3 Transportation
The means of transportation must be clean and dry. The weight of the stacked products on the box shall not exceed the bearing pressure of the outer packaging. The transportation process shall be covered to prevent contamination.
8.4 Storage
The product warehouse shall be ventilated and dry, and the temperature shall be kept between 15 and 38°C. If the temperature is below 15°C, the bottle caps shall be placed at a temperature above 15°C for 24 hours before use. During storage, the product shall not come into contact with odorous, corrosive and toxic items. 5141 Group batch
Products are inspected in batches, with the same specification of raw materials and continuous production on the same production line as one batch, and each batch does not exceed 600,000 pieces. 7.2 Sampling
Random sampling is carried out in accordance with GB/T2828, and a secondary sampling plan is adopted. The sampling inspection level and qualified quality level of size requirements, appearance, printing pattern adhesion performance, sealing performance, drop performance, anti-theft ring (strip) physical properties, grease overflow performance, and safe opening performance shall be carried out in accordance with Table 9.
Thermal stability
Printed pattern
Adhesion performance
Dimensional requirements
Sealing performance
Drop performance
Impact resistance
Anti-theft ring (strip)
Physical properties
Grease overflow performance
Safe opening performance
Number of samples
GB/T 17876-1999
Table 9 Bottle cap sampling plan
AQL = 0. 65
Secondary normal sampling plan
Qualified quality level
AQL = 1. 5
Batch ≤ 600,000 pieces
AQL = 4. 0
7.3 Type inspection
Type inspection items are first-article inspections, and the inspection items are all the required items of this standard. Type inspection should be carried out in any of the following situations:
a) Inspection and finalization of new products or old products transferred to the factory for production; b) After formal production, when there are major changes such as materials and processes that affect product performance; c) When production is resumed after being suspended for more than 6 months; d) When major quality problems occur;
e) When the user requests type inspection; f) When the national quality supervision agency requests type inspection. 7.4 Determination of type inspection
The results of type inspection shall be determined according to Table 9. If there is an unqualified item, it shall be judged as unqualified for type inspection. If one of the hygienic performance indicators 5.9 is unqualified, it shall also be judged as unqualified for type inspection. 7.5 Delivery inspection
The delivery inspection items are: size requirements, appearance, adhesion of printed patterns, sealing performance, drop performance, physical properties of anti-theft rings (strips) (if necessary, there may be items agreed upon by both parties). 7.6 Determination of qualified batches
The determination of delivery inspection is carried out completely in accordance with the type inspection. If all items are qualified, the batch of products is judged to be qualified; if one item is unqualified, the batch of products is judged to be unqualified.
8 Marking, packaging, transportation, storage
8.1 Marking
GB/T 17876—1999
8.1.1 When the product leaves the factory, the packaging box should have the product name, specifications, quantity, weight, trademark, full name and address of the manufacturer, packaging box dimensions, and transportation and storage precautions.
8.1.2 The packaging box is attached with a label containing the product batch number, inspection signature, production shift and production date, etc. 8.1.3 A product inspection certificate shall be issued in the packaging box or for each batch of products. 8.2 Packaging
Packing shall be carried out in a clean and dustproof environment. The bottle caps shall be packed in bags that meet the hygienic requirements of food packaging first, and then packed in boxes after sealing. Packaging materials agreed upon by the supply and demand parties may also be used.
8.3 TransportationWww.bzxZ.net
The means of transportation must be clean and dry. The weight of the stacked products on the box shall not exceed the bearing pressure of the outer packaging. The transportation process shall be covered to prevent contamination.
8.4 Storage
The product warehouse shall be ventilated and dry, and the temperature shall be kept between 15 and 38°C. If the temperature is below 15°C, the bottle caps shall be placed at a temperature above 15°C for 24 hours before use. During storage, the product shall not come into contact with odorous, corrosive and toxic items. 514
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