The Ultimate Buyer's Guide for Purchasing china custom 3 side seal pouches cosmetics packaging
3 Side Seal Pouches: The Ultimate Guide
This guide has all information youre looking for about 3 side seal pouches.
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As the name suggests, these pouches are sealed on three sides and only one left open for filling.
Keep reading to learn more about these packaging pouches.
Closed 3 side seal pouch
How 3 Side Seal Pouch compares to 4 Side Seal Pouch
3 side seal pouches have three sealed sides with one part open for filling.
4 side seal pouches have all their four sides sealed.
Side seal pouches
3 side seal pouches have more packaging capacity than the 4 side sealed pouches.
Since 4 side seal pouches are sealed in all the sides, they have uniformed appearance compared to 3 side sealed pouches.
3 side seal pouches are made from one-piece film while 4 side seal pouches are made from two pieces of film.
3 side seal pouches can be gusseted whereas 4 side seal pouches mostly do not have gusset.
4-sided offer better sealing strength, vacuum finish and product protection compared to 3 side seal pouches.
4 side seal pouches are mostly considered for special packaging as opposed to 3 side seal pouches.
Both 3 side seal pouches and 4 side seal pouches are made from similar materials.
They both have similar packaging characteristics and advantages.
Benefits of 3 Side Seal Pouches
3-side seal pouches have an array of benefits that have revolutionized packaging industry such as:
- 3-side seal pouches are versatile packaging solutions that can be used with different products.
- They are light in weight compared to the rigid packaging products hence they add a negligible weight to the product.
This in turn does not affect the overall weight hence making transportation inexpensive.
- You can easily customize the pouches to fit your needs or product preference in terms of size, color, design, shape.
- 3-side seal pouches are made from materials whose major characteristics is excellent barrier against environmental factors.
- They have better temperature tolerance hence can be heat sealed without damaging the pouches.
- Maintain product freshness for longer due to the aluminum lining in the inner layer.
- 3-side seal pouches are made from readily available materials which do not cost much thus are generally inexpensive.
- They are user friendly as dispensing products is easy due to availability of different closure options.
- The materials are stable hence do not react with any packaged product.
- They have been tested and found to be safe for packaging products for human consumption.
Limitations of 3 Side Seal Pouches
3-side seal pouches cannot be recycled due to difficulty in separating the combined material into single layers.
You cannot use most of them in microwaves.
Uses of 3 Side Seal Pouches
3 side seal pouches are used for packaging both food and non-food items.
The food items include; candies, chips-snacks, meat, sugar, green peas, etc. Non-food items include; drugs, beauty cream, seeds, toys, among others.
3 Side seal pouch
Best Material for 3 Side Seal Pouch
Our 3-side seal pouches are made from layered thermoplastics which are bonded together by an adhesive substance such as vinyl acetate.
All our materials are carefully chosen.
Materials must pass through a quality assessment before they can be used in the manufacturing process.
The chosen materials possess qualities such as;
- Good temperature tolerance.
- Have great structural strength.
- Are able to protect against external factors such as moisture, light, dust, bacteria, etc.
- Fully comply with health and safety measures put in place for the materials.
You can choose up to four film material laminations that best suits your products packaging needs.
They include polyethylene terephthalate (PET), foil, kraft paper, polyester (poly), aluminum, nylon, etc.
Some of the layerings we offer are:
- PET/Poly is very versatile but a bit rigid.
- Kraft paper/Poly: give a very strong pouch with great mechanical strength. They are also available in brown, white or black colors.
How to Manufacture 3 Side Seal Pouches
You can use Vertical Form-Fill-Seal (VFFS) or Horizontal Form-Fill-Seal (HFFS) to manufacture your 3 side seal pouches.
You will buy a machine type depending on your product needs.
- VFFS/HFFS
With VFFS and HFFS machines, you use roll film in the manufacture of the 3 side seal pouches.
You load the machines with the roll of film material which is folded into a single roll along the middle.
Manufacturing 3 side seal pouch machine
The resulting pouch is the cut at the required length thereafter filled with the product and all three sides sealed.
Inspection is carried out during the production process to ensure that only perfect pouches are used.
You may have plain pouches or printed pouches, for printed pouches you will have them in the registration detection system.
This is to avoid cutting the pouches on graphic patterned areas.
You can also add your preferred type of closure during the manufacturing process.
While HFFS is best for solid products such as candies, VFFS is ideal for granulated products such as sugar and liquid.
Both are a single use machines that create the pouch, fill then seal it at the same time.
The advantage of using VFFS and HFFS machines is that they use roll film which is inexpensive than a pre-made pouch. Besides, they produce multiple pouches at a go.
How 3 Side Seal Pouches compare to 3 Side Seal Sachet
3 sides seal pouch is made from thermoplastic materials whereas 3 side seal sachets is produced from a cheesecloth.
3 side seal pouches have a strong barrier property while 3 side seal sachets are perforated.
Both have two sides sealed and one left open for product filling.
How to Choose 3 Side Seal Pouch Making Machine
When choosing a machine for making 3-side seal pouches you need to take the following factors into considerations:
- First and foremost be sure of the type machine you need such as VFFS, HFFS or FS.
This will determine the type of pouch you want to produce.
- Secondly, you need to verify the performance of the machine in relation to its cost.
It is important to get a high performing machine and at a reasonable rate.
This will also affect the general production cost of your pouches.
- Compare machine reviews from different manufacturers as this will shed light on common problems associated with the machine.
Do not settle for machines that have many negative reviews especially manufacturing defects.
- Look for manufacturers that have a long history in pouch machine production.
They tend to have a better and stable technology that has been tested and proved.
Besides, such manufacturers are compliant with quality assurance and with great warranty against manufacturers defects.
- Request for on-site machine inspection to ascertain certain aspects such as energy consumption, production speed, waste output, operation cost, etc.
If possible, request for a trial period before making a purchase to get a first-hand experience of the machine.
- Check out the manufacturers after-sales service offered to the buyer of the machines. Their response time, downtime and the service details.
- Finally, consider the maintenance cost of the machine, accessories related to it and the lifecycle of the machine.
Closing Options for Three Side Seal Pouch
- Slider closure has a sliding device fixed on top of the pouch and has made opening and closing convenient.
- Spouts are fixed at the top with a cap for opening and closing the pouches. They make dispensing of liquid and powder products easy and convenient.
- Hook to hook closure is pressed to close producing a unique sound as well when it is opened.
- Tear notches make tearing the pouch open easy and smooth due to the pre-cut lines.
How 3 Side Seal Pouch compare to 2 Side Seal Bag
Different types of pouches
3 side seal pouch has two sealed sides while 2 side seal bag has one sealed side.
Both are manufactured from the one-piece film with one opening either top or bottom.
Features of 3 Side Seal Flat Pouch
Some of the main features of these side seal bags include:
- 3 side seal pouches are made from the different laminated material film such as nylon, aluminum, foil, PET, etc.
- Three of its sides are sealed and only one side is left open for filling of products.
- They are safe for human use as they are bisphenol A (BPA) free.
- 3 side seal pouches are flexible packaging solution with a uniform design.
- They have medium to high barrier property against moisture, oxygen and bacteria, light, etc.
Why Choose Resealable 3 Side Seal Pouch
You should settle for a resealable 3 side seal pouch due to the following reasons:
- Reusability/multi-use
A resealable 3 side seal pouch enables you to close, open and re-close the pouch at your convenience.
This feature makes them reusable as you can use them beyond the initial usage hence are multi-use.
- Different products
Since you are able to use the pouch beyond its initial use, you can use it to package different products.
- Sustainable
Resealable 3-side seal pouch are economical because they can be used for a longer period provided, they remain in good shape.
This is sustainable to a small businesses that opt to use them to package their products.
- Reduce wastage
Our 3-side seal pouch are multi-use therefore, they reduce the rate of waste disposal associated with single-use pouches.
This makes them less harmful to the environment due to reduced carbon print.
Printing Options for 3 Side Seal Pouch
Printed 3 side seal pouch
Printing is mainly done on the surface of the 3-side seal pouch to pass product details, instruction and enhance the appearance.
· Rotogravure Printing
Also referred to as gravure printing is a printing method that uses cylinders that are engraved on their surface.
The depressions on the metal cylinder surface form the design pattern to be transferred on the pouches.
As the cylinder rotates it is dipped into an ink tray where the patterned depressions collect ink and excess removed.
A second cylinder; impression cylinder then moves the object to the gravure cylinder to apply the pattern.
Once the printing area is done it is moved to a drying area before it is ejected from the rotogravure machine.
This process uses CMYK or pantone colors to print depending on your needs.
It is an expensive printing option ideal for high volume printing orders.
· Digital Printing
This involves direct printing of digital images or text on media surface such as plastic, paper, fabric, etc.
The image to be printed is sent to the digital printing machine as a digital file in form of PDF.
The artworks to be printed are created digitally using computer software hence eliminating several steps present in traditional printing methods.
Digital printing machine utilizes cyan, magenta black and yellow (CMYK) colors to print the images or texts.
Digital printing option is cost-effective, faster, ideal for small orders, and leaves a clear high-quality finish.
· Flexographic Printing
This is almost similar to the rotogravure printing method but uses flexible plates as opposed to engraved cylinders.
The flexible plates are wound around the rotating cylinders with the patterns on raised areas.
The raised parts are then inked one color per cylinder and then pressed against the pouch surface to transfer the images.
This printing option is cheaper than the gravure method and works well with plastic surfaces.
It is also great for large order printing.
Surface Finish Options for Three Side Seal Pouches
The type of surface finish for the 3-side seal pouches is dependent on what you want to achieve.
There are two surface finish options such as matte and glossy.
1. Matte Finish
Matte finish is a smooth, dull but sophisticated surface treatment that exude some level of professionalism.
They are not shiny hence they do not have a blinding effect to the consumers especially in sunlight.
They offer great printing surface for images and texts hence it is easier to read font on matte pouches.
The disadvantage of using matte finish is that they tend to be dull thus making the graphics dull too.
Besides, they are more expensive than the glossy finish.
2. Glossy Finish
Unlike a matte finish, a glossy finish is shiny, high profile and slightly textured look of the pouchs outer layer.
They are highly waterproof, attractive, and stand out easily in a shelf.
If you intend to have colorful artwork on your 3-side seal pouch then a glossy finish is recommended.
This is because the glossy background will enhance your prints giving them a brighter and quality image.
Besides, they are also great when introducing a new product in the market because they will easily attract customers.
Quality materials are used to achieve a glossy look therefore, your products are guaranteed safety and enhanced barrier against environmental factors.
The downside of using glossy finish is they tend to shine hence making it difficult to read the instructions.
They are also prone to dirt from fingerprints and are costly.
How to Fill and to Seal 3 Side Seal Pouches
You can fill your 3-side seal pouches by hand or machine depending on the volume of products.
Low volume products can be hand-filled while high volume products are filled by a machine.
Machine filling are automated and can be at a particular time or in a continuous process.
To hand fill your products, you need measuring vessels to ensure uniformity in your packed products.
The vessels can be spoons or jugs depending on the product status such as liquid, powder or solids.
Once you fill the pouches, you can seal them by hand as per the closure method or a heat-sealing machine.
Heat sealers apply heat in sealing the pouches and are available either in small volumes or automated for big factories.
Filling machines use conveyor belts to ferry ready pouches to the filling area of the machine.
The machines have special funnels or pumps that direct products into the pouches.
When using the automated machines, it is possible to vacuum seal the pouches by sucking out air from the pouches.
Once the pouches are filled, they are moved to the sealing area to remove excess air and the pouches are sealed accordingly.
Machine filling is faster and more accurate compared to hand filling.
Cost of 3 Side Seal Pouch
The cost of 3-side seal pouches varies depending on the configurations of the pouches such as size, print, add-ons, etc.
Plain 3-side seal pouches are inexpensive as opposed to tailor-made ones.
This is because customization is time-consuming and labor-intensive.
Add-On Features of 3 Side Seal Pouch
These are extra features that you can request us to add to your 3-side seal pouch to fulfill a particular need.
They can improve pouch appearance, increase convenience or ease of use.
· Zippers
These make the 3-side seal pouch reusable since you can open and close at your convenience.
They can be fitted with a double plastic track which interlocks when pressed to close.
Some might be fixed with a sliding clip that is moved from end to end to close and open.
· Hook to Hook Closure
It is a closure feature which that produces sound when opening and closing the pouch.
· Hang Holes
Make it easy to display the pouches by hanging on the shelves especially pouches that cant stand on their own.
This feature also saves on space taken by the 3-side seal pouches.
· Tear Notches
Are made on the film by cutting small broken lines along which the tear is made when opening the pouch.
This makes the opening of the 3-side seal pouch easy and neat.
· Rounded Corners
Naturally, 3-side seal pouches have sharp edges from the cuttings.
The sharp edges may cause injury to users especially kids when handling the pouches.
To minimize the injuries, you can have your pouchs edges rounded for a smooth, blunt, and safe finish.
· One-way Vent
Is mostly common with a 3-side seal pouch used to package products known to emit gas for some time.
The vent allows one direction movement from the pouch outwards.
It helps with aromatic marketing of products such as coffee besides, degassing the pouch to avoid bursting.
· Sprouts
You can have your 3-side seal pouches fixed with sprouts to ease dispensing of liquid, dry or powdered products.
This reduces wastage as a result of spillage.
· Handles
Handle are there to make transportation and dispensing of side seal pouches convenient and easy.
Available Shapes of 3 Sides Seal Pouches
The shapes for 3 side seal pouches can be rectangular, square, or any other shape that you may want your pouches to be.
Sizes of 3 Sides Seal Pouches
The size of a 3-side seal pouch is determined by the product to be packed and its weight.
They range between 50 by 70 millimeters (mm) to a maximum of 400 by 700 mm with a 10kg weight.
The small pouches can package candies while the big ones can accommodate cement or fertilizers.
These sizes are not limiting factors and you are welcome to specify your size when ordering.
Safety Features of 3 Side Seal Pouches
To enhance the safety of your 3-side seal pouch, you may add extra features such as below at an extra cost.
These features play a distinctive role in enhancing both the product and pouch safety.
· Tear Notch
Tear notches act as a security feature because you cannot re-seal the pouch once you open it.
This makes it easy to detect any attempts to open the 3-side seal pouch.
Besides, they also prevent unwanted spillage that may result from uncontrolled tearing.
· Handle
Handles provide convenient handling of the pouch easy during transportation.
Additional resources:What is the best way to vacuum seal food?
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This minimizes the chances of dropping the pouches due to slippery hands.
· Clear Window
Clear windows can be incorporated on one side of the 3-side seal pouch to enable you to monitor the product size.
· Valve
The valves act as a getaway for excess gas emitted by certain products such as roasted coffee.
It enables the evacuation of gas that would otherwise lead to the pouch bursting.
· Rounded Edges
With rounded corners, you eliminate sharp ends that may prick handlers or consumers of your products.
Industries using 3 Side Seal Pouches
3-side seal pouch is applicable in various industries such as:
- Food
In the food industry, 3-side seal pouches are used to package nuts, coffee, grains, snacks, frozen meat and fish, etc.
- Industry
Commercial industries use 3-side seal pouches to pack chemicals such as detergents, coal, toys, etc.
- Garden
The agricultural sector applies the use of these pouches to pack seeds, fertilizers, herbicides, and pesticides.
This is because the pouches are available in different sizes.
- Pet foods
Manufacturers of pet foods use 3-side seal pouches of different sizes to package dry pet foods such as dog biscuits.
- Pharma
3-side seal pouches are also used in the pharmaceutical sector to pack drugs such as antibiotics, painkillers, vitamin tabs etc.
- Beauty
Cosmetic manufacturers utilize pouches to package products such as cream, lotion, shampoo among others.
This is attributed to the fact that the pouches have passed health and safety measures and are inert.
- Farm fresh
Fresh produce such as tomatoes, pepper, green peas, carrots, spinach, etc. can be frozen and packed in 3-side seal pouches.
The products will stay fresh for a long time without going bad.
Color Options for 3 Side Seal Pouches
We offer up to eleven colors for the 3-side seal pouches, you need is to specify your color when ordering.
You can use the Pantone color scheme to choose a color and then share with us the color code for matching.
How to Test Quality of 3 Side Seal Pouches
3 Side seal pouch
· Seal Integrity Test
The integrity of the seal is tested by subjecting the pouch to a uniform flow of pressure and observing seal behavior.
Stronger seals sustain the pressure-flow longer than weak seals which burst after a short period of time.
· Barrier Tests
You can also subject the pouches through barrier tests such as oxygen penetration, moisture permeability, etc.
A special machine is used to check the rate of oxygen transmission if it is within limits.
Higher oxygen transmission confirms a poor barrier against oxygen.
The same applies to the moisture transfer rate.
When the moisture content in the pouches surpasses the required threshold then the pouches cannot maintain products freshness for long.
Both oxygen and moisture are catalysts for product spoilage since they encourage oxidation and dump conditions.
Common Defects in 3 Side Seal Pouches
Defects are deformities that may arise during manufacturing processes or handling of the 3-side seal pouches.
Some of the common defects are:
· Abrasion
An abrasion is a wearing out of the pouch layer that can be caused by a machine during production or mishandling.
If it is a light scratch on the outer layer of the pouch then it may not affect the product.
However, if the abrased area goes beyond the outer layer then the pouch cannot be used.
· Leaker Sealer
A leaker seal is an incomplete seal that has small spaces that can let out products.
This defect if not detected early can lead to a huge loss of the products as a result of leaking.
· Blister
This is a raised area along with the seal that looks like an empty swelling and is common along with the seal.
· Delamination
This is the separation of the single material layers that are held together.
It affects the pouch appearance and not the content provided it does not extend to the seal.
· Stringy Seal
A stringy seal has thread-like materials hanging along its edges due to uneven cutting of the edge.
· Swollen Seal
Occurs due to excessive air in the seal area or as a result of microbial interference such as a bacterial attack.
· Contaminated Seal
A contaminated seal is one that has unwanted materials embedded in it.
It is likely to compromise the integrity of the product.
· Crooked Seal
A crooked seal is one that is not aligned to the edge of the 3-side seal pouch.
· Cracks
Cracks are small splits that commonly occur on the foil layer of the 3-side seal pouch.
- Hot folds
This is a deformity caused by heat during the sealing of the 3-side seal pouches.
It is an unwanted fold that results from bending of the seal area.
· Wrinkles
Are creases on the 3-side seal pouch due to uneven folding of the seals due to shrinkage.
How to Customize 3 Side Seal Pouches
You can tailor-make your 3-side seal pouch in terms of size, design, material, color, printing, to suit your needs.
In order to get a customized 3-side seal pouch from manufacturers follow the below steps:
- Reach out to us via the address on our website.
- One of our salespersons will get back to you with an order form to fill.
- Specify all the features you need to be customized to your taste such as pouch size, color, printing method, material, etc.
- We will then come up with a sample mold for you to confirm before proceeding with mass production.
- Once you give us a go-ahead, we will sign an agreement thereafter you will make a deposit payment.
- When the production is finished, we will let you know so that you clear the balance and ship to your address.
Types of 3 Side Seal Pouches
Custom 3 side seal pouch
- Single-use
Single-use 3 side seal pouches are used once thereafter disposed of.
Most of them have tear notch closure options making it hard to close the pouches after opening.
- Multiple-use
This type of pouches is reusable due to the fact that they have resealable closure options such as zip lock.
Quality Certifications for 3 Side Seal Pouches
As manufacturers of 3-side seal pouches, we are required to comply with certain health, safety, environmental, and good manufacturing practices.
Upon meeting these standards, we are then issued certificates such as FDA, SGS, BPA, QS, CE, to assure clients safety.
How 3 Side Seal Pouches compares to Fin Seal Pouches
Fin seal pouch
3 side seal pouches have bottom and two sides sealed while fin seal pouches have bottom and the back sealed.
4 side seal pouches either have T-seal or lap seal as the back seal while 3 side seal pouches do not.
Both are manufactured from high-quality materials with excellent barrier properties against external factors such as vapor, dust, air, etc.
At TedPack, we help get high quality, safety compliant and cost-effective packaging solutions.
Side Seal Bags Manufacturer & Supplier from China - Hezcy
A 3-side seal pouch has three sealed sides, one part of which is open for filling. 4 side seal pouches are sealed on all four sides. 3-side-seal bags have a larger packaging capacity than 4-side-seal bags. Since four-side seal pouches are sealed on all four sides, they have a uniform appearance compared to three-side seal pouches. 3-side-seal bags are made from one piece of film, while 4-side-seal bags are made from two pieces of film. 3-side seal pouches can have gussets, while 4-side seal pouches are mostly without gussets.
Compared to 3-side seal pouches, 4-side seal pouches provide better seal strength, vacuum handling and product protection. Compared with 3 side seal pouches, 4 side seal pouches are mainly used for special packaging. Both 3-side seal and 4-side seal pouches are made of similar materials. They all have similar packaging features and benefits.
3-side seal pouches offer a range of advantages that have revolutionized the packaging industry such as:
- Three-side seal pouches are a versatile packaging solution that can be used for different products.
- They are lightweight compared to rigid packaged products, so they add negligible weight to the product. This in turn does not affect the overall weight, making shipping cheap.
- You can easily customize the bags to suit your needs or product preferences in terms of size, color, design, and shape.
- The main feature of the materials used for the three-side seal pouches their excellent barrier properties against environmental factors.
- They are more temperature resistant so they can be heat sealed without damaging the bag.
- Product freshness is maintained for longer due to the aluminum lining on the inside.
- Three-sided seal pouches are made from readily available materials and do not cost much, so they are usually inexpensive.
- They are user-friendly as dispensing the product is easy thanks to the different closure options available.
- These materials are stable and therefore will not react with any packaged product.
- They have been tested and found to be safe to package products for human consumption.
3-side seal pouches cannot be recycled due to the difficulty of separating the combined material into individual layers. You cant use most of them in the microwave.
3 side-seal bags for packing food and non-food items. Food items include; candy, potato chip snacks, meat, sugar, green beans, etc. Non-food items include; medicines, beauty creams, seeds, toys, etc.
Our 3-side seal pouches are made from layered thermoplastics that are held together by an adhesive substance such as vinyl acetate. All our materials are carefully selected. Materials must pass a quality assessment before they can be used in the manufacturing process. The selected material has the following qualities:
- Good temperature resistance.
- A strong structural strength.
- Resistant to external elements such as moisture, light, dust, bacteria, etc.
- Fully observing the health and safety measures established for the material.
You can choose up to four film material laminations that best suit your product packaging needs. They include polyethylene terephthalate (PET), aluminum foil, craft paper, polyester (poly), aluminum, nylon, and more. Some of the tiers we offer are:
- PET/Poly is versatile, but a bit stiff.
- Kraft/Polyethylene: Provides a very strong bag with high mechanical strength. They are also available in brown, white or black.
You can make 3-side seal pouches using vertical form-fill-seal (VFFS) or horizontal form-fill-seal (HFFS). You will purchase the machine type according to your product needs.
- VFFS/HFFS
With VFFS and HFFS machines you can use roll film when making 3-side seal pouches. You load the machine with a roll of film material that is folded down the middle into a roll. The resulting bag is cut to the desired length, then filled with product and sealed on all three sides. Inspections are carried out during production to ensure only perfect bags are used. You may have plain bags or printed bags, for printed bags you will put them in the registration inspection system. This is to avoid cutting the pouch in the graphic pattern area.
You can also add your preferred closure type during fabrication. HFFS is best for solid products like confectionery, while VFFS is ideal for granular products like sugar and liquids. Both are single-use machines that simultaneously make bags, fill them, and seal them. The advantage of using VFFS and HFFS machines is that they use roll film which is less expensive than pre-made bags. Also, they produce multiple sachets at a time.
The 3-side seal pouch is made of thermoplastic material while the 3-side sachet is made of cheesecloth. The three-side seal pouch has strong barrier properties, while the three-side sachet is perforated. Both have two sides sealed and one side open for product filling.
When choosing a machine to make three-side seal pouches, you need to consider the following factors:
1) First determine the type of machine you need, such as VFFS, HFFS, or FS. This will determine the type of bag you want to produce.
2) Second, you need to verify the performance of the machine in relation to its cost. Getting a high-performance machine at a reasonable price is very important. This also affects the general production cost of the bag.
3) Compare machine reviews from different manufacturers, as this will shed light on common problems associated with the machine. Dont settle for a machine with lots of negative reviews, especially manufacturing flaws.
4) Look for a manufacturer with a long history in bag-making machine production. They tend to have better, more stable technologies that are tested and proven. Additionally, these manufacturers come with a quality warranty and offer a great guarantee against manufacturer defects.
5) On-site machine inspections are required to determine certain aspects such as energy consumption, production speed, waste generation, operating costs, etc. If possible, request a trial period to experience the machine for yourself before purchasing.
6) Check the after-sales service provided by the manufacturer for the machine buyer. Their response times, downtime, and service details.
7) Finally, consider the maintenance cost of the machine, the accessories associated with it, and the life cycle of the machine.
- The slider closure has a slide attached to the top of the bag, making opening and closing easy.
- The spout is fixed on top with a cap for opening and closing the dispensing liquids and powders is easy and convenient with them.
- The hook-to-hook closure presses to close and also makes a distinctive sound when opened.
- The tear opening allows easy and smooth tearing of the bag thanks to the pre-cut lines.
3-side seal pouches have two sealed sides, while 2-side seal pouches have one sealed side. Both are made of a one-piece membrane with an opening at the top or bottom.
Some key features of these side seal pouches include:
- The 3 side seal pouches are made of different laminated material films such as Nylon, Aluminum, Foil, PET, etc.
- It is sealed on three sides and only one side is open for filling with product.
- They are Bisphenol A (BPA) free and safe for human use.
- The 3-side-seal bag is a flexible packaging solution with a unified design.
- They have medium to high barrier properties to moisture, oxygen and bacteria, light, etc.
You should choose resealable 3-side seal pouches for the following reasons:
1) Reusability/multipurpose
The resealable 3-side seal pouch allows you to close, open, and reclose the bag at your convenience. This feature makes them reusable, as you can use them after the initial use, so you can use them multiple times.
2) Different products
Since you can keep using the bag after the initial use, you can use it to pack different products.
3) Sustainable
Resealable 3-side seal pouches are very economical because they last longer and they keep their shape well. This is sustainable for small businesses that choose to use them to package their products.
4) Reduce waste
Our 3-side seal pouches are reusable, thus reducing the waste disposal rate associated with single-use bags. This makes them less harmful to the environment due to the reduced carbon footprint.
Printing is primarily done on the surface of the three-side seal pouch to convey product details and instructions, and enhance appearance.
1) Gravure printing
Also called gravure printing is a printing method that uses a cylinder with engravings on its surface. Dimples on the surface of the metal cylinder form the design pattern to be transferred to the bag. As the cylinder rotates, it dips into the ink pan, and the depressions in the pattern collect the ink and remove excess ink. A second cylinder; the impression cylinder then moves the object to the gravure cylinder to apply the pattern. After the printing area is complete, it is moved to a drying area before being ejected from the rotogravure press. This process prints in CMYK or Pantone colors depending on your needs. This is an expensive printing option thats great for high-volume print orders.
2) Digital printing
This involves printing digital images or text directly onto the surface of plastic, paper, fabric, etc. The image to be printed is sent to the digital printing press as a digital file in PDF format. The artwork to be printed is created digitally using computer software, thus eliminating several steps present in traditional printing methods. Digital printing presses print images or text in cyan, magenta, black, and yellow (CMYK) colors. Digital printing options are cost-effective, faster, ideal for small orders, and leave a crisp, high-quality finish.
3) Flexographic printing
This is almost similar to the rotogravure method but uses a flexible plate instead of an engraved cylinder. The flexible sheet is wrapped around a rotating cylinder with patterns in the raised areas. The raised portion is then painted with a color on each cylinder, which is then pressed against the surface of the bag to transfer the image. This printing option is less expensive than the gravure printing method and works well on plastic surfaces. Its also great for printing large orders.
The type of finish on the three-side seal pouch depends on the effect you want to achieve. There are two finish options such as matte and glossy.
1) Matt finish
A matte finish is a smooth, dull yet refined finish that exudes a level of professionalism. They have no shine and therefore do not have a blinding effect on the consumer, especially in sunlight. They provide an excellent printing surface for images and text, making it easier to read fonts on matte bags. The downside to using matte finishes is that they tend to get dull, which makes the graphics dull as well. Also, they are more expensive than glossy finishes.
2) Glossy surface
Unlike matte finishes, glossy finishes are shiny, high-profile and slightly textured on the outside of the pouch. Theyre highly water-resistant, attractive, and easily stand out on the shelf. A glossy finish is recommended if you plan to decorate your 3 side seal pouches with colorful artwork. Thats because a glossy background will enhance your prints, making their images brighter and of higher quality. Also, they are great when introducing new products to the market as they are easy to attract customers.
High-quality materials are used to achieve a glossy look, so your product remains safe and enhanced against environmental elements. The downside to using glossy finishes is that they tend to shine, making it difficult to read instructions. Theyre also prone to fingerprint smudges, and theyre expensive.
You can manually or machine fill the 3 side seal pouches depending on the volume of the product. Small batches can be filled by hand, while larger batches are filled by machine. Machine filling is automated and can be done at specific times or in a continuous process. To manually fill your product, you will need to measure the container to ensure the uniformity of the packaged product. The container can be a spoon or a jug, depending on the state of the product, such as liquid, powder or solid. Once the bag is filled, you can follow the closing method or manually seal it with a heat sealer.
Heat sealers apply heat when sealing bags and can be used in small batches or provide automation for larger factories. The filling machine uses a conveyor belt to transport the prepared pouches to the filling area of the machine. These machines have special funnels or pumps that direct the product into bags. When using an automated machine, the pouches can be vacuum sealed by sucking the air out of the pouch. Once the bags are filled, they are moved to the sealing area to remove excess air and the bags are sealed accordingly. Machine filling is faster and more accurate than manual filling.
The cost of a three-side seal pouch depends on the configuration of the bag, such as size, printing, accessories, etc. Regular 3-side seal pouches are cheap compared to custom-made ones. This is because customization is time-consuming and labor-intensive.
These are extra features that you can ask us to add to your 3 side seal pouches to meet specific needs. They can improve the appearance of an ostomy bag and increase convenience or ease of use.
1) Zipper
These make the 3 side seal pouches reusable as you can open and close them at your convenience. They can be equipped with dual plastic tracks that interlock when pressed to close. Some may be secured with a sliding clip that can be moved from end to end to close and open.
2) Hook-to-hook closure
This is a closure feature that makes a sound when the pouch is opened and closed.
3) Hanging hole
Hanging on a shelf makes it easy to display sachets, especially ones that cant stand on their own. This feature also saves the space taken up by 3 side seal pouches.
4) Tear opening
Made on the film by cutting small dotted lines along which the sachet will tear when opened. This makes opening the 3-side sealed bag easy and neat.
5) Fillet
Naturally, 3 side seal pouches have sharp edges from cuttings. When handling the bag, the sharp edges may cause injury to the user, especially children. To minimize injury, you can round off the edges of the pouch for a smooth, blunt, and safe surface.
6) One-way vent
The most common are 3-side seal pouches, used for packaging products known to outgas over time. The vent allows for movement in one direction, out from the bag. It helps in the aroma marketing of products like coffee and vents the bags to avoid bursting.
7) Nozzle
You can secure the 3-side seal pouch in the spout for easy dispensing of liquid, dry or powdered products. This reduces waste caused by overflow.
8) Handle
Carrying handles make transporting and dispensing side seal pouches convenient and easy.
The shape of the 3 side seal pouch can be rectangular, square, or any other shape you might want your bag to be.
The size of the three-sided seal pouch depends on the product to be packaged and its weight. They range in size from 50 x 70 millimeters (mm) to a maximum of 400 x 700 mm and weigh 10 kg.
Small bags can hold candy, and large bags can hold cement or fertilizer. These dimensions are not a limiting factor and you are welcome to specify dimensions when ordering.
To increase the security of your 3-side seal pouch, you can add the following features for an additional fee. These properties play a unique role in enhancing the safety of products and bags.
1) Tear opening
The tear opening acts as a safety feature as the bag cannot be resealed once opened. This allows for easy detection of any attempt to open the 3-side sealed bag. Plus, they prevent accidental spills from uncontrolled tearing.
2) Processing
Handles allow for easy handling of the bag during transport. This minimizes the chance of the bag falling due to slipping hands.
3) Clear window
A clear window can be added to one side of the 3-sided seal bag allowing you to monitor product dimensions.
4) Valve
These valves act as an outlet for excess gases emitted by certain products, such as roasted coffee. It vents gas that could cause the bag to burst.
5) Rounded edges
With rounded corners, you can eliminate sharp ends that could injure product handlers or consumers.
Three-side seal pouches are suitable for various industries, such as:
1) Food
In the food industry, three-side seal pouches are used to package nuts, coffee, cereals, snacks, frozen meat and fish, etc.
2) Industry
The commercial industry uses three-side seal pouches to package chemicals such as detergents, coal, toys, etc.
3) Garden
The agricultural sector utilizes these bags to package seeds, fertilizers, herbicides and pesticides. This is because bags come in different sizes.
4) Pet food
Pet food manufacturers use three-side seal pouches of different sizes to package dry pet food such as dog biscuits.
5) Medicine
Three-side seal pouches are also used in the pharmaceutical industry for packaging medicines such as antibiotics, pain relievers, vitamin tablets, etc.
6) Beauty makeup
Cosmetic manufacturers use pouches to package products such as creams, lotions, shampoos and more. This is because the bags have passed health and safety measures and are inert.
7) Farm Fresh
Fresh produce such as tomatoes, peppers, green beans, carrots, and spinach can be frozen and packaged in 3-side seal pouches. These products will stay fresh for a long time without going bad.
We offer up to 11 colors for 3 side seal pouches, you need to specify your color when ordering. You can choose a color using the Pantone color scheme, then share the color code with us to match.
Mainly check from the following two aspects:
1) Seal Integrity Test
The integrity of the seal is tested by subjecting the pouch to a uniform pressure flow and observing the sealing behavior. Stronger seals maintain pressure flow longer than weaker seals that rupture after a short time.
2) Barrier test
You can also perform barrier tests on bags such as oxygen permeability, moisture permeability, etc. A special machine is used to check that the oxygen transmission rate is within limits. Higher oxygen transmission confirms a poorer barrier to oxygen. The same applies to the moisture transfer rate. When the moisture content in the bag exceeds the required threshold, the bag cannot maintain the freshness of the product for a long time. Both oxygen and moisture are catalysts for product spoilage as they promote oxidation and pouring conditions.
Defects are deformities that may occur during the manufacturing process or handling of 3-side sealed bags. Some common pitfalls are:
1) Wear and tear
Abrasion is the wear and tear of the pouch layers, which can be caused by machinery or improper handling during production. If its a minor scratch on the outside of the bag, it probably wont affect the product. However, the bag cannot be used if the area of wear extends beyond the outer layer.
2) Leakage sealing machine
A leaking seal is an incomplete seal with little room for the product to leak. If this defect is not detected early, it may result in a huge loss of product due to leakage.
3) Blisters
This is a raised area that looks like a hollow swelling and is common with seals.
4) Layering
This is the separation of individual layers of material that are bonded together. If it doesnt extend to the seal, it will affect the appearance of the bag rather than the contents.
5) String seal
Filament seals have thread-like material on the edges due to uneven cutting of the edges.
6) Swelling seal
Occurs due to excess air in the sealed area or microbial disturbances such as bacterial infestation.
7) Contaminated seal
Contaminated seals have unwanted material embedded in them. Product integrity may be compromised.
8) Bending seal
A bent seal does not line up with the edge of the 3-sided seal bag.
9) Cracks
Cracks are small tears that usually appear in the foil layer of 3-sided sealed bags.
10) Ironing wrinkles
This is the deformation caused by the heating of the three-side sealed bag during the sealing process. This is an unwanted fold caused by bending in the sealing area.
11) Wrinkles
There are creases on the 3 side seal pouch due to shrinkage causing the seal to fold unevenly.
You can tailor your three side seal pouches in terms of size, design, material, color, and printing to meet your needs. To obtain a custom 3-side seal pouch from the manufacturer, follow these steps:
- Contact us via the address on our website.
- One of our salespeople will bring you back an order form to be filled.
- Specify all the features you need to customize to your liking, such as bag size, color, printing method, and material.
- Then we will take out a sample mold for your confirmation before mass production.
- Once you agree with us, we will sign the agreement, then you will pay the deposit.
- We will notify you when production is complete so you can settle the balance and ship it to your address.
1) Single use
Single-use 3-side seal pouch, discard after one use. Most of them have a rip closure option, making it difficult to close the pouch once opened.
2) Multiple use
This type of pouch is reusable as they have resealable closure options such as zipper locks.
As a manufacturer of three-side seal pouches, we must adhere to specific health, safety, environmental and good manufacturing practices. After meeting these standards, we will get FDA, SGS, BPA, QS, CE and other certificates to ensure the safety of customers.
The 3-side flap seals on the bottom and sides, while the fin flap seals on the bottom and back. The 4 side seal pouches have a T-seal or lap seal as the back seal while the 3 side seal pouches do not. Both are made of high-quality materials and have excellent barrier properties against external factors such as steam, dust and air. We help achieve high-quality, safety-compliant, and cost-effective packaging solutions. Contact us for all your 3 side seal pouch packaging needs.
For more flexible retort pouch packaging dealerinformation, please contact us. We will provide professional answers.
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