Quality Control of Nanwang’s Paper Bag
As one of the drafters of the national standards paper bag industry, Nanwang boasts industry-eading laboratories in its field. We have implemented internalquality control standards, including thorough audits of suppliers, testing of rawmaterials, and strict control over the production process. We have also set upa comprehensive traceability system for our products, which alows us to completequality tracing within just 2 horas.
Testing of raw materials
Physical indicators: Quantification, odor, folding strength, bursting strengthstiffiness, tensile strength, tear strength, smoothness, whiteness, opacity, paperdust, thickness, moisture, water absorption (COBB), fat acid resistance (the KITmethod and hot oil test), etc.
Food safety indicators: Fluorescent substances, consumption of potassiumpermanganate, heavy metal (calculated by Pb), arsenic, formaldehyde, overalmigration, microorganisms (3 items), etc.
Ink testing: Color, odor, PH value, heavy metals (multiple elements), etc.
Sealant testing: Viscosity, solid content, heavy metals (multiple elements), etc.
Paper Bag Manufacturing Control ——
Paper Bag Manufacturing Control
Printing ink dry friction resistance test, printing ink oil friction resistance test, drop teststatic load test, dynamic lifting test, handle strain relief test, flexing test, high-ow-temperature resistance test, fat resistance test, fluorescent substance test, sealingviscosity test, quantitative test, size measurement, and sealant strength test.
To accomplish the abovementioned tests, we use up to 660 paper bags per day.
Handle Strain Relief Test
Color Proofreading
Static Load Test
14 tests for food packaging:
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Product Type |
Test Items |
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|
Paper Cup |
Leakage |
Ice Cube |
Cup Body Rigidity |
Specification Size |
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Pajita |
Soak |
Specifications Size |
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|
Paper wrap |
Paper Weight |
Wax Coating Weight |
Spot Resistance |
Ink Penetration |
|
Impresión |
Friction Resistant |
Soaking Decolorization（ink） |
Friction Resistance |
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|
Paper Bag / Caja de papel |
Friction Resistant |
Soaking Decolorization（ink） |
Water Proof |
High And Low Temperature |
Friction Test
High-ow Temperature Test
Soaking And Color Fading Test
Supply Chain Control
Rich in supplier resources with stable supply and a wide coverage of materials
A strong alliance with the world’s four largest paper manufacturers to maintain a long-term strategic partnership
Strategic resources, advantageous geographic location, and convenient land and water transportation
Customized solutions to meet the unique needs of customers that provide maximum support for one-stop supply services
Perfect and Comprehensive Inspection
Built to meet CNAS laboratory accreditation standards, capable of testing the compliance of paper, ink, and adhesive. The laboratory is equipped with over 100 testing instruments, with a total investment of nearly ten million yuan. The laboratory includes advanced testing equipment such as atomic fluorescence spectrometer, gas chromatography-mass spectrometer, and inductively coupled plasma emission spectrometer, capable of detecting compounds, heavy metals and other projects in raw materials.
01. Physical Testing Laboratory
This section is fully equipped with all the necessary instruments for testing the physical properties of paper, glues, inks, and finished products.
02. Microbiology Laboratory
The microbiology lab conducts microbial monitoring of raw materials and finished products in accordance with China’s National Food Safety Standard GB4806.8. Microbial monitoring and control are also implemented as required by GB31603.
03. Chemical Analysis Laboratory
This laboratory is capable of testing all parameters specified in GB4806.7 and GB4806.8.
04. Simulation Laboratory
The simulation lab performs various tests to mimic end-use scenarios, ensuring products meet performance requirements in real-world applications.
Traceability System
Rapid response —— Product traceability can be completed within 24 horas.
Product traceability can be completed within 24 horas
By assigning a unique traceability code to each product batch, Nanwang ensures every product has its own distinct identification number. Each product batch undergoes a comprehensive traceability system throughout its production process. This system enables data collection and tracking across various stages, including suppliers, raw materials, production, warehousing, sales, market inspections, and consumers. Furthermore, product traceability can be achieved within two hours, allowing for a rapid response to customer feedback.
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