GB/T 29336-2012 Co-extruded multi-layer composite hose for cosmetics GB/T29336-2012 |tt||Standard compression package decompression password: www.bzxz.net
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of multi-layer composite hoses. This standard applies to hoses with two or more layers, which are made of polyethylene resin as the main raw material and the inner layer is made of polyethylene, and are produced by co-extrusion and are used for cosmetic packaging.

ICS55.02C
National Standard of the People's Republic of China
GB/T29336--2012
Multi-layer coextruded tube for cosmetics
Multi-layer coextruded tube for cosmetics2012-12-31 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2013-08-01 Implementation
This standard was drafted in accordance with the rules set out in GB/T1.12909 and proposed by the China Packaging Federation. This standard is under the jurisdiction of the National Technical Committee for Packaging Standardization (SAC/TC49). GB/T29336—2012
The chapter-making units of this standard are: Shenzhen Tongchan Lixing Co., Ltd., Guangzhou Qunxin Packaging Industry Co., Ltd., Yalishi Yijiao Products (Hong Kong) Co., Ltd., and Guangzhou Sanrong Packaging Materials Co., Ltd. The main drafters of this standard are: Chen Shou, Lin Maoqing, Li Dasheng, Gong Jinghua, Chen Zhenquan, Fu Wuzhuang, Wu Guoquan. 1 Scope
Co-extruded multi-layer composite hose for cosmetics
GB/T29336--2012
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of multi-layer composite hoses (hereinafter referred to as multi-layer hoses).
This standard applies to hoses with two or more layers, which are made of polyethylene resin as the main raw material and the inner layer is made of polypropylene, and are produced by co-extrusion and are used for cosmetic packaging.
2 Normative reference documents
The following documents are indispensable for the application of this document. For any dated referenced document, only the dated version applies to this document. For any undated referenced document, its latest version (including all amendments) applies to this document. GB/T1038
GB/T2791
Plastic film and sheeting - Test method for gas permeability - Pressure difference method - Test method for T-peel strength of adhesives
Flexible material to flexible material
Attribute sampling inspection procedure - Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL) GBT2828.1
GB4789.15
Food microbiology examination - Determination of total colony count - National food safety standard
Food microbiology examination - Coliform count - National food safety standard
Food microbiology examination - Count of microorganisms and yeast - Method of analysis for hygienic standard of polyethylene, polyethylene and polypropylene moldings for food packaging GB/T5009.60
General rule for immersion test methods for food packaging materials and their products GB/T 5C09.156
GB/T16122.2
GB/Z21274
GB/Z21275
3 Terms and definitions
Plastics Laboratory light source exposure test method Part 2: Xenon arc lamp detection method for restricted substances lead, mercury, and hexavalent chromium in electronic and electrical products Detection method for restricted substances hexavalent chromium in electronic and electrical products The following terms and definitions apply to this document. 3.1
Fmalti-layer tube
Multi-layer composite hose
Use two or more extruders to extrude two or more plastic resins simultaneously into the composite die, and then stretch to form a multi-layer tubular packaging container.
Technical requirements
4.1 DimensionsbZxz.net
4.1.1 Length, outer diameter, and wall thickness of multi-layer tubes The length, outer diameter, and wall thickness of multi-layer tubes shall comply with the provisions of Table 1. 1
CB/T 29336-2012
Pipe length,
Pipe length tolerance
2 Barrier layer, adhesive layer thickness
Table 1 Pipe length, pipe outer diameter and pipe wall thickness
Pipe outer diameter, D
35≤30
Attached spacer, adhesive layer thickness shall comply with the provisions of Table 2. General outer diameter tolerance
Table 2 Barrier layer, adhesive layer original thickness
Positive spacer
4,2 Appearance requirements
4.2.1 The color of the tube body is uniform, the surface is smooth, without bumps, different color spots, scratches, cracks, and perforations. 4.2.2 The injection head end is stopped, and the mold line has no burrs, pull ends, misalignment, and no incomplete injection, scars, or gaps. Tube wall thickness,
0.35~0.45
0.25~0.53
0.59~0.6c
Adhesive layer
Unit is mm
Thickness tolerance
Median is meter
2.2.3 Printing should be correct, fonts should be clear, standardized and clean, without burrs, burrs, ink accumulation, foreign pollution, no missing or wrong version, the whole printing effect should be smooth and uniform, and the depth should be uniform.
4.2.4 The width of the hot stamping (silver) on the tube or cover should be uniform, the layout or pattern should be correct, without burrs, incompleteness, obvious gold flowers, scratches. 4.2.5 Labeling should be correct, without bubbles, wrinkles or scratches. 4.2.6 The seal should not be wired, warped or eccentric.
4.2.7 The tail weld is neat and tidy, with clear lines and straight, no ears or overflow. 4.2.8 The pipe cover is straight, without obvious tilt, uniform color, no perforation, burrs, flash, incomplete filling and piercing pouring excess, and the outer surface with tungsten should be uniform in color.
4.3 Physical and mechanical properties
Compatibility of pipe cover
Capping force
The capping force of the threaded cover should meet the requirements of lower capping force and sealing. 4.3.1.2 Lower capping force and sliding force
The torque of the lower capping force and sliding force should meet the requirements of Table 3. 2
Cap outer diameter D
16
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