Description

1 Introduce

This refined 250 g dry nuts bag is designed to highlight the natural quality and freshness of premium products on the shelf. Featuring an eight side seal structure with a stable flat bottom, the bag stands securely and presents a clean well balanced appearance that enhances brand presence in retail environments. The carefully selected material structure of Matte BOPP VMPET and LDPE delivers an elegant matte surface while providing excellent barrier protection against moisture oxygen and light to preserve flavor aroma and texture.

The video below shows the exquisite details of this 250g dry nuts flat bottom bag.

2 Foil Materials

This foil material is a reinforced structure with excellent protective performance for dry nuts packaging. The material structure is Matte BOPP/VMPET/LDPE, designed to provide strong barrier protection against moisture oxygen and light, helping maintain the natural flavor aroma and texture of nuts. The matte surface offers a refined visual appearance while supporting clear and detailed graphic printing as shown below.

Let’s first get a further understanding of each substrate layer material.

Matte BOPP is a premium packaging film widely used for high quality food packaging applications. It is produced through biaxial orientation, which gives the film excellent strength and dimensional stability while maintaining a smooth and refined matte surface. This soft, non glare appearance enhances product presentation and creates a more natural and upscale shelf impression, especially for premium dried fruit and snack products.

One of the key advantages of Matte BOPP is its strong visual appeal. The matte finish reduces reflections under retail lighting and allows printed graphics and colors to appear more sophisticated and consistent. At the same time, the material offers good stiffness and durability, supporting stable bag structures and smooth filling performance.

Matte BOPP also performs well in lamination structures. When combined with barrier layers such as VMPET and sealing layers like LDPE, it contributes to improved moisture and oxygen protection while maintaining flexibility. In addition, Matte BOPP is odorless and food safe, making it suitable for direct food contact. Overall, it is an ideal choice for brands seeking a balance of elegant appearance reliable performance and product protection.

VMPET is a metallized PET film designed to provide strong barrier protection in food packaging applications. By applying a thin aluminum layer through vacuum metallization, it effectively blocks moisture oxygen and light, helping preserve the flavor aroma and freshness of products such as dried fruits.

LDPE is a widely used sealing material in flexible food packaging, known for its softness flexibility and reliable heat sealing performance. It provides a strong inner layer that ensures good seal integrity, helping prevent leakage and protecting the product from external contamination.

The main advantages of LDPE include excellent sealing strength good puncture resistance and food safe properties. It adapts well to high speed filling processes and maintains package integrity during handling transport and storage, making it an essential component in multilayer packaging structures for dried fruit products.

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.

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

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

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

The refined matte appearance of this nut packaging is created through a precisely applied matte coating on the outer BOPP layer. This process delivers a smooth soft touch surface with stable ink adhesion and uniform visual quality, ideal for brands that aim for a premium and natural presentation.

The matte coating also provides excellent scratch resistance, helping prevent fine surface marks that may occur when the laminated film passes through rollers during bag making. This ensures the finished nut bags maintain a clean and high quality appearance throughout production, handling, and distribution.

You are advised to watch the video below for further understanding.

There are also some other options to achieve the matte finish effect for the nuts food packages, and here you may this post if you are interested.

How is matte finish achieved on standup pouches

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

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

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 a smooth and effortless opening experience — just pull along the tab for a clean, straight tear. This feature makes the nut bag easy to open while preserving the package’s original integrity and premium appearance.

Carefully integrated into the pouch, the zipper sits perfectly flat without any creases, giving the bag a sleek, refined look that elevates your brand’s presentation.

The video below will give you a further explanation of the smooth zipper.

 

4 Quality Control Measures

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.

4.2 QC Test Report Against Each Order

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

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.

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.

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.

4.6 Hard Sudden Strikes on inflated dog food bags

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

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.

 

4.8 Easy Rip Tear Zipper Test

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

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.

Through the below link, you will be able to study the certificates on each of the materials adapted in our factory.

Human Food Safety

 

7 Dieline of 250g dry nuts bags

The die-line of this 250 g nut sachet is crucial for customers who want to create an outstanding package design. Every detail—including dimensions, zipper placement, and side and bottom gussets—is clearly defined in this die-line to ensure accurate and precise artwork.

We provide the editable PDF file here, allowing customers to download it and share directly with their designer for seamless creative work and efficient package design development.

250g dry nuts-flat bottom-W152XH240-template

8 Technical Data Sheet of matte finish flat bottom bag pack for 250g dry nuts

Here, we include the specifications on some main items of this matte finish flat bottom bag pack for 250g dry nuts, with the videos showing the test progress in the later columns.

You may check attached PDF file for a further knowledge on the specifications of this matte finish flat bottom bag pack for 250g dry nuts.

1. Dimension Tolerance
2. Print Appearance
3. Yield (grams per square meter)
4. Tensile Strength (Mpa)
5. Elongation Rate  (%)
6. Coefficient of friction, short as COF
7. Solvents Left (mg/m2 )
8. Sealing Strength (N/15mm)
9. Sealing Conditions
10. Bond Strength (N/15mm)
11. Burst Strength (J)
12. Anti-Puncture ability (N)
13. Drop Test Ability (cm)
14. Anti-pressure ability (kgs)
15. Water Vapor Transmission Rate (g/m2/24hr)
16. 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.

1. BOPLA Film
2. PLA+PBAT Film
3. Kraft Paper
4. Metallized Paper
5. Cellulose Film
6. Metallized Cellulose Paper
7. PBS Film
8. PVDC Coated Cellulose Film
9. 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.

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.

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

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.

Compostable Plant-film Materials Pouch 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.

1. MDOPE Film
2. BOPE Film
3. APE Film
4. LDPE Film
5. LLDPE Film
6. CPE Film
7. ABOPP Film
8. CPP Film
9. VMCPP Film
10. VMBOPP Film
11. EVOH-LDPE Film
12. 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.

1. MDOPE/APE
2. MDOPE/LDPE
3. MDOPE/EVOH-LDPE
4. MDOPE/HDPE/APE
5. MDOPE/BOPE/APE
6. BOPE/APE
7. BOPP/CPP
8. BOPP/VMCPP
9. 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

Fully Recyclable Mono Materials Package

10 Reliable filling machinery to fill products into this flat-bottom nuts pouch

Our bags are produced for running on the high-speed filling lines, which maximize the production efficiency for the coffee roasters. Of course, you will have to find a reliable filling machinery to do this job.

11 About the manufacturer

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.