Quad Seal Bag

Your Trusted Chinese Quad Seal Bag Factory

Quad Seal Bag Solution Provider

The most substantial positive effect we can have on the environment is by minimizing the materials we produce and utilize. Quad Seal Bag achieves this by offering maximum product with minimal packaging. It lowers energy consumption during production and transportation, reduces packaging waste, and enhances product protection effectively.

What Is Quad Seal Bag

A Quad Seal Bag is a type of packaging bag with specific sealing characteristics and advantages. Usually, two pieces of film are joined together and sealed along the four edges to form a sealed packaging space. This bag has five panels, with a flat and rectangular bottom, and side seals. After being filled with products, it appears three – dimensional, taking on the shape of a cube or a near – cube.

It can effectively prevent external air, moisture, dust, and pollutants from entering, thus protecting the product from getting damp and oxidized. This helps to prolong the product’s shelf life, making it suitable for products that require high – level protection against moisture and oxidation, such as coffee, tea, and nuts.

Key Features Of Quad Seal Bag

Superior Sealing: The four – side sealing design creates a highly sealed packaging space, effectively blocking external air, moisture, and dust. This sealing performance helps maintain the freshness and quality of the packaged items, making it an ideal choice for products sensitive to environmental factors, such as food, medicine, and cosmetics.
Good Standing Stability: With a flat bottom, Quad Seal Bags can stand upright stably on shelves or countertops. This feature not only facilitates product display and storage but also enhances the overall visual effect, making the products more attractive to consumers.
High Space Utilization: The cubic shape of Quad Seal Bags after being filled allows for efficient use of space. They can be neatly stacked and arranged, which is beneficial for storage and transportation. This feature helps save costs and increase operational efficiency.

The Application Of Quad Seal Bag

Bakery Products: They are used to package bread, cakes, cookies, and other baked goods. The excellent sealing property of quad seal bags can prevent the entry of air and moisture, keeping the products fresh and crispy for a longer time.
Confectionery: Candies, chocolates, and other confectionery items are often packaged in quad seal bags. The bags can protect the products from melting, sticking together, and absorbing odors from the environment.
Dried Foods: For dried fruits, nuts, and grains, quad seal bags provide a good barrier against moisture and pests, ensuring the quality and shelf life of the products.
Frozen Foods: The strong sealing and moisture – proof characteristics of quad seal bags make them suitable for packaging frozen foods such as frozen vegetables, fruits, and ready – to – eat meals, preventing freezer burn and maintaining the taste and quality of the products.
Skincare Products: Lotions, creams, serums, and masks can be packaged in quad seal bags. The bags can protect the products from oxidation and contamination, and the large printing area allows for attractive packaging design to enhance the product’s appeal.

Contact us to discuss your Quad Seal Bag!

We’d like to bring value and save cost for your Quad Seal Bag.

Types Of Pouches

Stand Up Pouch

Spouted Pouch

Valve Pouch

3-side Seal Pouch

Special Shape Pouch

Zipper pouch

8-side Seal pouch

4-side Seal Pouch

Are You Looking For Customized Quad Seal Bag?

Choosing a reliable supplier is crucial, especially for industrial intermediates such as this Quad Seal Bag. A professional and reliable supplier will make your brand go farther in the later long-term cooperation!

Rollstock Unwind Direction Chart

The unwind direction is a crucial decision for any printed Quad Seal Bag roll stock application. It specifies the direction or orientation in which you want the printed material to be unwound from the roll when it is placed on your equipment. Rollstock can be configured to unwind in total 8 different directions below.

Common Materials Used For Quad Seal Bag and Their Properties

Aluminum Foil

Aluminum foil offers excellent barrier properties, effectively preventing moisture, oxygen, and light from penetrating, which helps maintain food quality and freshness. It is lightweight, easy to process, and recyclable, making it suitable for various food packaging applications.

Nylon (Polyamide)

Nylon possesses good mechanical strength and abrasion resistance, along with high barrier performance. It is suitable for food packaging that requires resistance to high temperatures and freezing, effectively extending the shelf life of products.

Polyester (PET)

Polyester materials have high transparency and excellent optical properties along with good barrier performance. They are commonly used in beverage bottles and other packaging, providing resistance against moisture and oxygen ingress.

Ethylene-Vinyl Alcohol Copolymer (EVOH)

This material has extremely high oxygen barrier properties, making it ideal for packaging oxygen-sensitive foods. EVOH is often used as a layer in composite materials to enhance overall barrier performance.

BOPP (Biaxially Oriented Polypropylene)

BOPP has good transparency and strength, effectively blocking water vapor and gases to maintain the freshness of products inside the packaging. It is cost-effective, suitable for mass production.

CPP (Cast Polypropylene)

CPP features good heat-sealing properties and transparency, with high flexibility suitable for various shapes of packaging. Its moisture barrier performance is good, but it does not have the same level of barrier properties as BOPP.

Kraft Paper

Paper materials are environmentally friendly, economical, and easy to print; however, single-layer paper packaging does not provide sufficient barrier properties. They are typically laminated with other materials to enhance functionality.

Polyethylene (PE)

Polyethylene has good heat-sealing properties, flexibility, and impact resistance, widely used in food packaging. It can serve as an inner layer material, laminated with other materials to enhance overall packaging performance.

Bioplastics

Bioplastics are typically made from renewable resources and have good gas barrier properties, making them suitable for food packaging. They perform well in terms of environmental sustainability, helping to reduce plastic pollution.

Frequently Asked Questions About Quad Seal Bag

You are welcome to contact us for any questions unclear or interested, we are open to exchange ideas about this quad seal bag makret with you.

1. What is the material of the bag?

Our quad seal bags are mainly made of polyethylene (PE), polypropylene (PP), or their composite materials. These materials have good flexibility, strength, and barrier properties, effectively protecting your products.

2. Can the size of the bag be customized?

Certainly. We can customize quad seal bags of various specifications according to your product size and packaging requirements to ensure a perfect fit for your products.

3. How about the printing effect of the bag?

We use advanced printing technologies such as gravure printing and flexographic printing to achieve high – precision and vivid – color printing effects. The bag has a large printing area, which can clearly display your brand logo, product information, and exquisite patterns.

4. How to ensure the sealing performance of the bag?

Our quad seal bags use advanced heat – sealing technology to seal the four sides of the bag, forming a reliable sealing structure. Each batch of bags will undergo strict sealing performance testing to ensure no leakage and effectively protect products from the external environment.

5. Is the bag environmentally friendly?

We offer a variety of environmentally friendly material options, such as bags made of biodegradable bio – based materials. These bags can gradually decompose in the natural environment, reducing environmental pollution. You can choose the appropriate material according to your environmental protection needs.

6. Will the bags be damaged during transportation?

We have rich experience in packaging and transportation. Before delivery, the bags will be properly packaged and protected with cushioning materials to prevent collisions and squeezes during transportation. At the same time, we cooperate with reliable logistics partners to reduce the risk of damage during transportation.

7. Can samples be provided?

Yes. We are happy to provide samples for you to evaluate the quality, size, printing effect, etc. of the bag. You just need to apply to us and pay a certain sample fee (which can be deducted from the payment for the subsequent order), and we will arrange to send the samples to you as soon as possible.

8. How about the moisture - proof performance of the bag?

The materials used for our quad seal bags have good moisture – proof performance, which can effectively block external moisture from entering and protect your products from being affected by moisture. It is a very suitable packaging choice for products with high requirements for moisture – proof, such as food and medicine.

9. Can special designs such as zippers or easy - tear openings be added to the bag?

Yes. We can add special designs such as zippers and easy – tear openings to the bag according to your needs, making it convenient for your customers to use the product and enhancing the user experience.

10. How about the transparency of the bag?

We offer bags with different levels of transparency. If you want the product to be clearly displayed, we have high – transparency materials for you to choose from; if you need a certain degree of light – shielding, there are also translucent or opaque materials to meet your needs.

12. How is the price calculated?

The price mainly depends on factors such as bag size, material, printing requirements, and order quantity. The larger the size, the more special the material, the more complex the printing, and the smaller the order quantity, the relatively higher the price. We will provide you with a detailed quotation according to your specific requirements.

13. What are the payment methods?

We usually accept payment methods such as telegraphic transfer (T/T) and letter of credit (L/C). The specific payment method can be determined according to your needs and negotiation between both parties.

14. How to ensure that the quality of the bag meets the standards?

We have a strict quality control system. From raw material procurement, production process to finished product inspection, each link is strictly controlled in accordance with relevant quality standards. All products will undergo multiple quality inspections before leaving the factory to ensure compliance with your requirements and industry standards.

15. Can the bag be used for vacuum packaging?

Yes. The material of our quad seal bag can meet the requirements of vacuum packaging. It can still maintain good sealing performance after vacuuming, effectively extending the freshness and shelf life of the product. It is very suitable for products with requirements for vacuum packaging, such as food and electronic products.

16. What is the return and exchange policy if I am not satisfied with the received bags?

If you are not satisfied with the received bags, please contact us . We will conduct an investigation according to the specific situation. If it is indeed a product quality problem, we will handle the return and exchange service for you.

Let's Work Together

Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you custom your flexible packaging.

Tel: +86-571-82824082

WhatsApp: +86-13575706574

Email: [email protected]

RFQ