Description

1.Introduce

These 227-gram four sides seal bag for noodles are highly appreciated in the consumer market. They provide a strong, modern, and eye-catching packaging solution that effectively enhances product visibility on retail shelves.

As a reliable manufacturer of these 4 sides seal pouches with noodles products, we are going to share the details of this 4 sides seal pouch.

2.Laminated Foil

Usually, a monolayer film material is not feasible to achieve the multiple functions required by these 227 grams four sides seal bag. To achieve a robust package, this noodles pouch will have to be made of a 2-layer structure, with the details of this foil laminate shown in the graphic below.

Generally, we name the foil structure PET/LDPE, so it can be well understood in business activities. This laminated foil also extends its wide application to many other liquid products, such as motor oil products, windshield washer fluids, household cleaning chemicals, liquid fertilizers, etc.

In this foil laminate, PET film works as the outside print substrate film layer, and LDPE film works as the inner sealing film.

Please note, all the film materials, inks, and adhesives applied in our flexible packaging are certificated human food safety. Then, let’s get into more understanding of each of the substrate films.

PET12, is one of the most commonly used printing substrates in flexible packaging pouches. With great optical clarity, high gloss, good chemical resistance, stable mechanical strength, excellent dimensional stability, and great printability, it can present the customer artwork print in great quality, and also provide great mechanical strength to the final package.

LDPE, means low-density polyethylene film, which is the most used inner sealing layer for coffee bags. LDPE is also lightweight, easy to fabricate, and has good chemical and impact resistance. LDPE is recyclable and reusable, making it a popular alternative to traditional plastic. LDPE is nontoxic, non-contaminating, and has a high degree of break resistance. Most importantly, LDPE membrane can be modified against the requirement of specific products, and finalize the package with great seal strength and protection. The thickness of LDPE membrane will be decided against particular application.

You may read here on our company website to get a deeper understanding of PET/VMPET/LDPE Foil Laminate and see how it can help you decide the ideal packages.

PET/LDPE Foil Laminate Materials

Ok, let’s get into a deeper understanding of the performance of this jelly food standup pouch.

PET/LDPE Foil Laminate Materials

3 Properties and Quality Assurance

3.1 Exquisite print quality

The artwork is printed through gravure printing on our rotogravure print press which can print up to a maximumly 10 colors. With advanced print techniques and a print defects inspection system, we are now outputting fantastic print results against customers’ artwork.

In our manufacturing plant, we take serious measures to achieve high color fidelity and consistency for repeated print orders, and here we will give an overall introduction.

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 so helpful to locate a specific color for the printing service supplier and the customers, especially if there is a large area printed in 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. Pantone Color Code will be located in the artwork design with the customers before the order is put into production.

c. Physically Printed on Photo Paper

The computer files such as JPG, PDF, PSD, AI etc cannot be taken as the guide to determine the color in print produce, as they present the colors through electronic screening devices. And 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 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 Great Mechanical Strength

The 4 sides seal bag will have to protect the 227 grams of noodles in a fine situation during transit and distribution. You can easily imagine what a nightmare it is when one of the standup pouch packages breaks and contaminates the surroundings.

We put the mechanical strength on the top list of our QC work, and there are serious measures and tests taken in our plant, to ensure each and every of the pouches delivered to the customer site is accountable.

Put simply, a drop test should be considered one of the most reliable ways to check if the spout pouch is robust enough for protection purposes.  Usually, we fill a certain amount of water into the spout bag, and drop it from a certain height, and see whether it breaks when the filled pouch reaches the ground. Of course, the height should be decided against the requirements of the customer’s needs.

3.3 Eye-catching Effect

This pack of 227 grams of noodles becomes one of the top picks when it just on the shelves. People may not help to lay an eye on it when they just browse the products. It surely helps on the product sale.

3.4 Good Dimension Stability

There is an increasing requirement for the dimension stability of the 4 sides seal bag when the manufacturers and packers are going to improve the production efficiency with high-speed filling lines. We have quite a good understanding of this and are doing our job to narrow the tolerance of the dimensions for each order produced in our long-term supply. Usually for the 227 grams 4 sides seal bag, the tolerance should be controlled within +-1%, which will run well on most of the high-speed filling machineries in the market.

3.5 Easily tear out

3.6 Delicate Bag Making

The 4 sides seal bag is enhanced with refined design details that create a strong visual impact, allowing the product to stand out on the shelf. This attractive presentation captures consumers’ attention at a glance and leaves a positive impression as they browse, effectively influencing purchase decisions. For many customers, an elegant and eye-catching appearance is a key factor in choosing a product.

And the transparent window allows consumers to see the actual product inside, which increases trust. Shoppers feel more confident when they can visually inspect product quality, color, texture, and freshness before purchasing.

The window creates a visual contrast between printed areas and the clear section, making the package more eye-catching on shelves. It helps products stand out without relying solely on graphics.

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 in our plant, with some main items of the properties tested and listed. This is an effective way to get the customers settled on their packages, and highly appreciated by our customers.

You may read here to understand the QC test report of this 120 grams Heinz-tomato-ketchup order.

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’s artwork to be achieved in a way that deteriorates their business. On our gravure print press, there is in-line inspection system that 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 spout bags 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 30,000 bags printed against customer artwork design.

4.4 Airtight Property Test

The finished spout pouch should be completely airtight, otherwise the product may deteriorate under the conditions of oxygen and moisture in the environment. The closure will need to be screwed tightly onto the spout during the filling process when it is done at the customer site.

Here, we apply airtight property test on this capped spout pouch under the minus-pressure environment, and this proves to be the most reliable way in our industry to check if the package is completely tight from the air.

4.5 Drop Test

Drop test should be considered as a very reliable way to check if the coffee bag strength is enough to meet the various conditions, as it copies the way when the products falls off the good shelves, and the finished bag will suffer great sudden shock. In our daily QC work, We perform drop test against each order, of course, the standard for this drop test should be decided against customer needs.

Here, we are going to drop the filled coffee bag from 1.6m high, for 5 times.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 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.

The leakage or breakage of the 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.

4.7 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 to gain 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.

4.8 Third-party Inspection

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

6 Package Dimension and Filled Level

Nevertheless, the spout bag should finely hold 227 grams of noodles, not too big, and most importantly, not be small. So, a suitable package dimension should be located before the order is put into production.

The below picture shows well the filled line of 227 grams of noodles in this pillow pouch, and there is enough space on the top for the over filling problem. Great package!

If you need further assistance on the package dimensions, you may reach our sales at office@valuepackaging.cn

7 Dieline of 227 grams noodles 4 side seal bag

The diecut line should be needed when the customer wants to achieve his lovely logo and creative artwork design onto this package. Here we attached the artwork design template, and the customer may just need to forward it to your designer whenever you need.

Artwork Design Template 4 Sides Sealed 227 grams Noodles +5mm

8 Technical Data Sheet of 4 side seal bag for 227 grams noodles

Here, we include the specifications on some main items of this multilayer spout bag, with the videos showing the test progress in the later columns.

You may check the attached PDF file for further understanding on the properties of this spout bag.

Some main items are listed below.

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 about any of the items.

9 More Sustainable Options

With the growing global concern over plastic pollution, an increasing number of manufacturers are shifting toward more sustainable packaging solutions, such as compostable film materials, recyclable mono-material packaging, and plant-based material structures. Compared with traditional plastic films-typically derived from fossil-based chemicals and difficult to recycle or degrade in the natural environment-these alternatives offer a significantly more eco-friendly and sustainable approach.

Here, we are going to share some of the trending sustainable packages for the coffee market.

9.1 Compostable film material packages

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. Metallized 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 seek improved biodegradation performance of their compostable packaging under natural soil conditions, as such packages are often not returned to industrial composting facilities once discarded.

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.

d. Vacuum Packages

The compostable pouches can be intended for the vacuum packages for products, like milk powder, nutrition products, etc.

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 pouch packaging refers to structures made mainly from a single polymer, such as polyethylene (PE) or polypropylene (PP). Because the entire pouch belongs to one material family, it can be easily collected, sorted, and recycled through existing recycling streams.

Compared with traditional multilayer laminates like PET/LDPE, which are difficult to recycle due to incompatible melting conditions, mono-material pouches are truly recyclable and can be reprocessed into plastic granules for reuse. Currently, mono-material pouches are mainly classified into PE and PP systems, with PE structures being more widely adopted due to their excellent performance and versatility in stand-up pouch applications.

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 About the manufacturer

Qingdao Tongli Packaging has devoted itself to the manufacture of quality pillow 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 pillow pouch packages.