Description
1 Introduce
This 500 g dry nuts bag with a transparent window is designed to showcase the natural quality and freshness of premium products. Its eight-side seal structure with a stable flat bottom ensures the bag stands securely, offering a clean and balanced presentation that strengthens brand visibility on retail shelves. The combination of carefully selected materials, including Matte BOPP, VMPET, and LDPE, provides a subtle matte finish while maintaining excellent barrier protection against moisture, oxygen, and light, preserving flavor, aroma, and texture. The transparent window allows consumers to view the product inside, enhancing trust and appeal while emphasizing the premium nature of your nuts.
298-Standup-zipper-pouch-for-500g-dry-nuts1
The video below shows the exquisite details of this 500g dry nuts doypack.
2 Foil Materials
This premium foil bag features a reinforced multilayer structure, delivering exceptional protection for dry nuts. Made from Matte BOPP, VMPET, and LDPE, the material provides a strong barrier against moisture, oxygen, and light, preserving the natural flavor, aroma, and texture of your products. Its elegant matte finish not only enhances shelf appeal but also supports high-quality, detailed graphic printing, ensuring the brand stands out with a refined and professional presentation.
Let’s first get a further understanding of each substrate layer material.
Matte BOPP film
Matte BOPP is a high-quality packaging film commonly used for premium food products. Produced through biaxial orientation, it delivers excellent strength and dimensional stability while providing a smooth, refined matte surface. Its soft, non-glare finish enhances the visual appeal of products, creating a natural and upscale impression on retail shelves, particularly for dried fruits and snacks.
The matte surface also improves printed graphics and colors, making them appear more sophisticated and consistent under retail lighting. In addition, Matte BOPP offers good stiffness and durability, supporting stable bag structures and smooth filling processes.
When used in lamination with barrier layers such as VMPET and sealing layers like LDPE, Matte BOPP contributes to superior protection against moisture and oxygen while retaining flexibility. Odorless and food-safe, it is ideal for direct contact with edible products. Overall, Matte BOPP combines elegant appearance, reliable performance, and effective product protection, making it a perfect choice for premium packaging.
vmpet-film
VMPET is a metallized PET film engineered to provide superior barrier protection for food packaging. A thin aluminum layer applied through vacuum metallization effectively shields products from moisture, oxygen, and light, helping maintain the flavor, aroma, and freshness of items such as dried fruits.
This film combines excellent barrier performance with flexibility and durability. It offers strong resistance to tears and punctures, supports smooth processing during lamination and bag production, and ensures reliable protection throughout filling, transport, and storage. VMPET is an efficient and practical choice for brands seeking both product preservation and premium packaging performance.
LDPE is a widely used sealing material in flexible food packaging, valued for its softness, flexibility, and dependable heat sealing performance. It forms a strong inner layer that ensures reliable seal integrity, preventing leaks and protecting products from external contamination.
Key benefits of LDPE include excellent sealing strength, good puncture resistance, and food-safe properties. It performs well in high-speed filling operations and helps maintain package integrity throughout handling, transport, and storage. As a core component in multilayer packaging for dried fruits, LDPE supports both product protection and consistent packaging quality.
3 Properties and Quality Assurance
3.1 Exquisite print quality
The artwork is achieved in gravure printing on our rotogravure print press which can print up to a maximum of 10 colors. With advanced print techniques and a print defects inspection system, we are now outputting fantastic print effects for the customers’ artwork.
298-Standup-zipper-pouch-for-500g-dry-nuts12
At our production facility, strict quality control processes are applied to maintain precise color consistency throughout every manufacturing batch. From initial setup to final inspection, each step is carefully managed to ensure reorders match the original design accurately, helping preserve a consistent and professional brand image across all packaging runs.
a. Color Analyzer
Color Analyzer Checking
This color analyzer is one of the auxiliary tools in our system to achieve the highest standard for color fidelity. The eXact Advanced doesn’t just validate the color of CMYK and spot color inks, it can simultaneously measure four M modes to visualize the spectral reflectance of a substrate or ink, measure the concentration of a specific ink, and measure the difference of a substrate or ink over white and over black.
b. Pantone Color Code
The Pantone color guide would be very helpful in locating a specific color for the spring service supplier and the customers, especially since there is a large area printed in a single Pantone color. For many Pantone colors, the accuracy may be influenced by the printer, paper substrate, and environmental factors when it is printed onto physical photo paper. We will locate the Pantone Color Code with the customers in their artwork design before the order is put into production.
c. Physical Printed On Photo Paper
Print-proofs-printed-on-photopaper
Computer files such as JPG, PDF, PSD, AI, etc can not be taken as the guide to determine the color in print produce, as they present the colors through electronic screening devices. Different electronic screens may be set in different parameters by the various manufacturers, which will inevitably interfere with the color presentation. Artwork can only be a reliable guide when printed on a physical substrate, with the most common photo paper applied.
You may read here to understand more about how our company ensures color fidelity and consistency for all our orders.
Measures taken to achieve high color fidelity and consistency in reprints
3.2 Excellent Matte Finish Effect
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The elegant matte finish of this nut packaging is achieved through a precisely applied coating on the outer BOPP layer, creating a smooth, soft-touch surface with consistent visual quality and reliable ink adhesion. This refined appearance is perfect for brands seeking a premium, natural presentation.
In addition to its aesthetic appeal, the matte coating offers excellent scratch resistance, protecting the surface from minor marks that can occur during bag production, handling, or distribution. This ensures the finished bags retain a clean, high-quality look from factory to shelf.
Different methods are also available to achieve a matte finish for nut packaging, allowing flexibility in design and material selection to meet specific brand requirements.
3.3 Excellent Dimension Stability
As nut brands increasingly adopt high speed filling and packing lines, dimensional accuracy and stability in packaging materials have become essential for efficient production. Even small variations can affect filling performance and overall line efficiency.
At VP Packaging, we place strong emphasis on precision and consistency. Through ongoing process optimization and strict quality control at every stage of production, we tightly control dimensional tolerances in each batch. This ensures smooth operation on automated filling lines, reliable sealing performance, and consistent results that our nut packaging partners can depend on over the long term.
3.4 High Barrier Performance
Mocon-permeation-tester
Our foil laminate is reinforced with a premium ultra-thin aluminum layer, providing outstanding barrier protection against oxygen and moisture. This superior performance helps keep dried nuts fresh, preserving their natural flavor, aroma, and texture for longer. As a result, every package delivers products that taste as vibrant and wholesome as the day they were packed.
3.5 Fantastic Standup Effect
298-Standup-zipper-pouch-for-500g-dry-nuts1
This stand-up nut bag features a stable flat-bottom design, allowing it to remain upright on shelves when filled. The secure structure enhances product visibility, attracts consumer attention, and reinforces brand presence, making it an effective solution for premium retail presentation.
3.6 Great Mechanical Strength
This reinforced laminated foil can greatly protect coffee beans ranging from 100g to 5lb volume.
We perform various inspections and tests to check the mechanical strength of the finished pouch, like drop tests, hard sudden strikes, anti-pressure tests
- Tensile Strength
- Sealing Strength
- Anti-puncture Strength
- Burst Impact Strength
- Anti-pressure Property
The above tests are performed against each order, on customer requirements, and you may check the exact values of this foil material PET12/AL7/PET12/LDPE in the Technical Date Sheet part of this post.
3.7 Smooth Zipper
The inner tear-off zipper provides an easy, smooth opening, allowing consumers to pull the tab for a clean, straight tear. This feature ensures convenient access while preserving the bag’s original structure and premium look.
Designed to sit flush within the pouch, the zipper remains perfectly flat without creases, giving the bag a sleek, refined appearance that elevates brand presentation and enhances shelf appeal.
The video below will give you a further explanation of the smooth zipper.
4 Quality Control Measures
Labortory-test-equipment
Serious quality control measures have been taken in our manufacturing plant, to ensure each order is finished meeting the requirements of particular customers. With more than ten years of working experience in this field, we finalize this QC manual standard, to make sure each order is produced following the correct procedure.
Here, please allow us to guide you further into our QC system.
4.1 Manufacturing Traceback
We apply a strict recording system to document the manufacturing details, such as environmental conditions, craftsmanship parameters, production facility conditions, etc, which allows us to trace back whenever there is a problem.
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4.2 QC Test Report Against Each Order
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There will be a QC test report issued against each order produced, with the core items evaluated in it. It is highly appreciated by our customers.
You may read here to understand the QC test report for an order of 250g and 1000g dog food bag.
4.3 Print Inspection
Pantone-color-examine-purple
In our manufacturing plant, the print inspection is always taken and done in a serious way, as we will never allow the customer artwork to be achieved in a way that deteriorate their business. On our gravure print press, there is in-line inspection system which can eliminate more than 98% of the defects in the printing process.
You may check how it works on our control panel.
There is also a supplementary off-line inspection equipment, to allow us to do the print inspection again whenever it seems necessary.
off-line-gravure-print-inspection-for-roll-foils
We are now producing dog food pouch. against customer artwork, and we surely love to support the startup and market-testing period for our customers. We will accept a minimum order quantity of 10,000 bags printed against customer artwork design.
4.4 Airtight Property Test
The finished bag should be completely airtight, to get the products well-protected from oxygen and moisture in the environment. We perform the airtight property test against each order with the device as below.
Airtight-property-test-on-sealed-bottom-gusseted-bag
In actual operation, we will pick up 1 bag every 1,000 pcs, and perform the test following the procedure in our QC manual.
4.5 Drop Test
Drop testing is a highly effective method to evaluate whether a nut bag can withstand real-world handling conditions. It simulates the impact a package might experience if it falls from a shelf, exposing the filled bag to sudden shocks that test its strength and durability.
In our routine quality control, we perform drop tests on every order, tailoring the standards to meet specific customer requirements. For this evaluation, the filled bag will be dropped from a height of 1.6 meters, 5 times, to ensure it maintains integrity and protects the product inside under typical handling conditions.
You are advised to watch the video below, for a further understanding.
After 5 drops for each bag, none of them breaks, all are fine and dandy.
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4.6 Hard Sudden Strikes on inflated dog food bags
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Hard sudden strikes should be taken as a more fierce test method than drop test, as it causes much higher force on inflated packages.
Let’s watch the video to understand how we perform this test in our manufacturing plant.
4.7 Anti-Pressure Test
anti-pressure-test
Pressure-resistance test is another effective method to decide if the final package will serve as great protection for the products, especially liquid products, like household detergent liquids, and windshield washer fluids. For coffee bags, we will perform the anti-pressure test in our daily QC work, to ensure each order is finished with great mechanical strength.
The leakage or breakage of the coffee bag will surely be a disaster, either for the distributor or the manufacturer. We will never expect this thing happens in our customer’s business.
Sometimes, for easier and fast operation, we may just get one person to stand on the well-sealed and inflated coffee bag, to check if there is any burst of them.
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4.8 Easy Rip Tear Zipper Test
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The tab zipper must be easy for consumers to tear, as a difficult opening can negatively affect the overall product experience. Smooth and effortless use is a key factor in encouraging repeat purchases and maintaining customer satisfaction.
Here, we perform a tear test on this 12 oz flat-bottom Lifeboost coffee bag, giving you a clear demonstration of how easily the zipper can be opened and ensuring the packaging meets consumer-friendly standards.
4.9 Laboratory Tests
Labortory-test-equipment-tongli-packaging
Laboratory tests are essential to keep us updated with the intrinsic properties of the foil materials which are not visible to the human eyes. It is crucial for gaining a thorough understanding of the data about the production of our bags. The craftsmanship can be improved bit by bit to pursue premium quality bags based on thorough analysis and application of these data. You may check more of these tests in the Technical Data Sheet part of this post.
Third-party inspection is available for all our orders on agreed standards or regulations.
5 Human Food Safety
All the film materials, inks, adhesives, and solvents used to convert into kinds of food bags and packaging materials will comply with the regulations for human food safety. The below graphic shows the mass spectra in migration tests on these multilayer flexible pouches these are in direct contact with foods.
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Through the below link, you will be able to study the certificates on each of the materials adapted in our factory.
7 Dieline of 500 g dry nuts doypack
500g W190XH270+BG100 – Inner zipper for nuts
The die-line of this 500 g dried fruit stand-up pouch is an essential tool for creating a precise and professional packaging design. All key elements, including overall dimensions, zipper placement, and bottom gusset structure, are clearly defined to ensure accurate and consistent artwork development.
An editable PDF die-line is provided for easy download, allowing customers to share it directly with their designers. This helps streamline the design process, reduce errors, and ensure efficient development of high-quality packaging artwork.
500g W190XH270+BG100 – Inner zipper for nuts
8 Technical Data Sheet of standup zipper pouch for 500g dry nuts
Laboratory-test-flexible-roll-foil
Here, we include the specifications on some main items of this multilayer dry nuts bag, with the videos showing the test progress in the later columns.
technical-data-specification-sheet-with-test-videos
You may check attached PDF file for a further knowledge on the specifications of this stand up zipper pouch for 500g dry nuts.
Some main items are listed below.
- Dimension Tolerance
- Print Appearance
- Yield (grams per square meter)
- Tensile Strength (Mpa)
- Elongation Rate (%)
- Coefficient of friction, short as COF
- Solvents Left (mg/m2 )
- Sealing Strength (N/15mm)
- Sealing Conditions
- Bond Strength (N/15mm)
- Burst Strength (J)
- Anti-Puncture ability (N)
- Drop Test Ability (cm)
- Anti-pressure ability (kgs)
- Water Vapor Transmission Rate (g/m2/24hr)
- Oxygen Transmission Rate (cc/m2/24hr)
Just reach us if you have any questions with any of the items.
9 More Sustainable Options
With the increasing burden on plastic pollution, more and more manufacturers are now seeking more sustainable packages, like compostable film materials, recyclable mono materials packages, and plant-based materials packages. They all prove to be eco-friendlier and more sustainable than the traditional plastic films which are usually derived from fossil chemicals, and very difficult to recycle and break down in the environment.
Here, we are going to share some of the trending sustainable packages for the coffee market.
9.1 Compostable film material packages
Thanks to the fast development of plant-based film materials, we can present the multi-layer standup pouch and roll foils in full compostable and biodegradable options.
The compostable substrate films we adapt to convert the multi-layer flexible pouches are listed below.
- BOPLA Film
- PLA+PBAT Film
- Kraft Paper
- Metallized Paper
- Cellulose Film
- Metallized Cellulose Paper
- PBS Film
- PVDC Coated Cellulose Film
- Metalized BOPLA Membrane
We are now achieving multilayer compostable foil materials based on extrusion coating lamination, solvent-free lamination, and dry lamination, and then convert into various types of flexible pouches against customers’ requirements.
Some of the common compostable foil structures are listed below.
- Kraft Paper/PLA+PBAT Membrane
- Kraft Paper/BOPLA Membrane
- Cellulose/PLA+PBAT Membrane
- Kraft Paper/PBS Foil Membrane
- Metallized Paper/PLA+PBAT Membrane
- BOPLA/PLA+PBAT Membrane
- Cellulose/Metallized Cellulose/PLA+PBAT Membrane
- Kraft Paper/Metallized Cellulose/PLA+PBAT Membrane
- Cellulose/Metallized Paper/PLA+PBAT Membrane
- Kraft Paper/Cellulose/PLA+PBAT Membrane
- Kraft Paper/Cellulose/PBS Membrane
- Metallized Paper/Cellulose/PLA+PBAT Membrane
Here, we are going to introduce the main performance of these compostable materials pouches.
a. Compostable
All the film materials we adapt are certificated compostable, under home or industrial conditions, complying with the standards EN 13432 or ASTM 6400.
The films will present different biodegradation behaviors under different conditions, such as industrial composting facilities, home and garden conditions, and nature soil conditions.
In most cases, industrial composting will be able to achieve a faster biodegradation of the compostable film materials than other composting progress, as it is able to provide better conditions.
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Some manufacturers would like to have a better biodegradation behavior of their own compostable packages under nature soil conditions, as in most cases, the abandoned package may not be recycled into human composting facilities.
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You may read here to have a better understanding of the break-down progress of our compostable foil laminated materials under the nature condition in Qingdao, Shandong, North China conditions.
The biodegrading process of compostable film materials buried in nature soil
b. High-barrier performance pouches
Through vacuum metallization, PVDC coating, and AlOx/SiOx depositing, the compostable films can be achieved with better barrier performance, such as water vapor transmission rate (short as WVTR) and Oxygen Transmission Rate (short as OTR). Later on, we will combine several layers of the barrier film and convert into laminate foil, with an improved barrier property for finished packages.odles, or soup products
In below table, we are going to share some barrier data of the most common foil laminates tested on our Mocon permeation tester.
| Biodegradable Foil Laminate | WVTR (g/m2/24hr) | OTR (cc/m2/24hr) |
| BOPLA40/PLA+PBAT60 | 62.2 | 267 |
| Cellulose30/PLA+PBAT60 | 131.5 | 5.6 |
| Kraft Paper45g /PLA+PBAT60 | 44 | 742 |
| Kraft Paper45g/BOPLA40 | 41 | 380 |
| Metallized Paper69g/PLA+PBAT40 | 27 | 127 |
| Cellulose30/Metallized Cellulose20/PLA+PBAT60 | 23 | 0.16 |
| Cellulose30/Metallized Cellulose20/BOPLA40 | 25 | 0.12 |
| Metallized Paper 69g/Cellulose30/PLA+PBAT60 | 5.6 | 1.12 |
| Kraft45g/Metallized Cellulose20/PLA+PBAT60 | 26 | 0.22 |
| Cellulose30/Kraft45g/PLA+PBAT60 | 19 | 117.2 |
| Cellulose30/Metallized Paper69g/PLA+PBAT60 | 8.9 | 1.1 |
c. Alkaline Resistant
alkaline-test-on-compostable-pouch-with-bleaching-powder
We put a certain amount of bleaching powder into the compostable pouches with various foil structures and place them in an environment of 40~45 Celsius degree, to accelerate the aging process of the compostable pouches.
The test result proves the compostable pouches will be fine for packing alkaline products, like household detergent powder, and hand wash cubes.
However, it is not ok for household liquid detergent and other liquid cleaning chemicals.
You may watch the video below for further knowledge on it.
d. Frozen Treatment
The compostable pouches can be well intended for frozen treatment for some food products, and the mechanical property of the frozen pouch still works well as good protection for the products during the transportation and distribution process.
You may watch the video below to study the test in our office.
d. Vacuum Packages
The compostable pouches can be intended for the vacuum packages for products, like milk powder, nutrition products, etc.
f. Hot Filling up to 100 Celsius Degree
The compostable pouch will be fine for the hot filling process, which may work well for juice products.
Watch the video below to learn our test.
g. Microwave Oven Treatment
The compostable daypack can be well intended for microwave oven treatment, such as melting the candle wax, etc.
Please note, there should not be metalized film layer in the compostable pouch when it is intended for this microwave treatment purpose.
You may read here for better understanding on the compostable plant-based film materials packaging.
9.2 Mono Materials Recyclable Pouch Packages
Mono-material pouches are genuinely recyclable because they can be easily processed into plastic granules for reuse in other applications. In contrast, traditional multilayer laminates—such as PET/LDPE—are much harder to recycle since PET and LDPE require different melting conditions and cannot be processed together efficiently. This recyclability advantage is driving the growing popularity of mono-material pouches in the packaging industry and boosting their reputation among environmentally conscious consumers.
Currently, mono-material pouches are mainly categorized into polyethylene (PE) and polypropylene (PP) channels. Polyethylene-based pouches are especially popular, as they can be converted into a variety of stand-up pouch formats while maintaining relatively high performance, making them a practical and sustainable choice for many products.
Here we list the film materials that can be well intended for mono-materials recyclable pouch packages.
- MDOPE Film
- BOPE Film
- APE Film
- LDPE Film
- LLDPE Film
- CPE Film
- ABOPP Film
- CPP Film
- VMCPP Film
- VMBOPP Film
- EVOH-LDPE Film
- HDPE Film
Various foil laminates can be achieved based on the above film materials with different properties, which are intended to meet the particular requirements for specific products. Some of the common mono-material foil laminates are listed below.
- MDOPE/APE
- MDOPE/LDPE
- MDOPE/EVOH-LDPE
- MDOPE/HDPE/APE
- MDOPE/BOPE/APE
- BOPE/APE
- BOPP/CPP
- BOPP/VMCPP
- ABOPP/VMCPP
From our experience, mono-materials pouches can be well intended for spices powder products.
You may have a further understanding of the recyclable mono materials and pouches here, and just reach us if you have any questions
10 About the manufacturer
bag-making-department
Qingdao Tongli Packaging has devoted itself to the manufacture of quality coffee bags for more than 10 years, with long-term customers around the world. You may just rely on us if you would like to get a sustainable and reliable supply for your coffee packages.
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