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I know you’re looking for a paper bag making machine that’s why you are here.

Maybe, you want to be a paper bag wholesaler or make branded designs for your retail business.

The truth is, paper bags are dear packages for food vendors, retailers, and even manufacturers.

But, how can you venture in this business?

Or, what is the most cost effective way of making paper bags?

Today’s guide debunks the facts behind paper bag making process and machine such basic definition, working principle, classification, design, technical specification, etc.

So stay with me to be an expert in paper bag making industry.

Let’s begin…

Paper bags

Paper bags

Chapter 1: What is a Paper Making Machine?

Let’s begin with some facts.

Apart from the other devastating problems associated with plastic bags, did you know that synthetic bag manufacturers produce about one trillion of those bags in a year globally?

Did you also know that it takes one thousand years for a single bag of this kind to biodegrade?

Yes, that’s the scariest part of it.

Due to that, most governments are imposing bans on these carriers.

The alternative?

A mega-shift to more environmentally friendly paper bags.

So basically a paper bag making machine is a state of the art machine that gathers, folds, stamps, and processes papers to produce clean paper bags.

These paper bags are for use in the packaging of goods in various industries such as food, pharmaceutical products, grocery, and baking industries.

Fully automatic paper bag making machine

Fully automatic paper bag making machine – Photo courtesy: RUIZHI

The bag making machines come in various configurations depending on the type of bags for final production.

Therefore, the paper bag making system should be versatile enough to cater to the dynamics in the paper bag manufacturing.

Today different paper bag making stakeholders such as the machine manufacturers, raw material suppliers face a lot of shifting customer demands, government regulations, changing prices, etc.

Paper bags

Paper bags – Photo courtesy: KRAFT

It’s thus good only if the machine can afford the manufacturer some relief.

For that matter, it means that you need to know all the factors related to the paper bag making the machine.

Besides, all the accompanying dynamics before making a purchase.

Luckily, I have compiled all that you need to know in this article.

The history of development and use of paper bag making machine dates back to the 19th century.

During these early stages, the systems were simple and mechanically operated.

With that, we move to the next step.

Chapter 2: Where to Use Paper Bag Making Machine

Take a moment to reflect on the occasions you use a paper bag.

Indeed paper bag forms a vital integral in our lives today.

From simple uses such as carrying random goods to more complex ones such as in pharmaceuticals to wrap up drugs.

a woman carrying paper bag

A woman carrying paper bag

One thing is for sure.

Without paper bag making machine, we would be missing a significant aspect of our lives.

Surely, there are numerous uses of paper bag making the machine.

Subsequently, the produced paper bags can be classified under different distinct categories depending on their purposes.

Some of the major classifications are:

· Bread paper bags

Usually, if you go to the bakery store or supermarkets, you will find the bread wrapped up in brown paper bags and displayed.

Bread paper bags

Bread paper bags

There is a significant reason why grocery stores do this kind of wrapping.

Now, most of you might have had guesses about the reasons why the bakery stores bread in paper bags.

Is it for aesthetical values to make it look fancy so that you get wanting to buy some?

Or, is it to make you believe about the degree of freshness of the loaf?

Some firmly think it’s solely for being environmentally conscious.

Trust me;

The bread paper bag covers serve much more values than those reasons above for maintaining more prolonged periods of freshness.

That’s right;

The paper bag plays a significant role in helping to keep the bread stay fresh for an extended period — this how it works.

The paper bags especially the open ones provides a path for the continuous circulation of air in and out of the bread.

The constant air circulation would then make the bread to form a crust which is also vital for the maintenance of freshness.

The bread crust formed on the outer layer of the bread may seem dry but beneath that crust, lies a moist and sweet food.

For that matter, it remains fresh for an extra three to four days.

On the contrary, if you do the same packaging in a plastic bag, this what will undoubtedly happen.

The plastic bag will retain moisture in the bread thereby keeping the whole crust and bread soaked in moisture thus becoming mushy.

As a result, the dough will likely give you two or one day window for you to consume it a failure of which it loses taste.

For that matter, the best packaging for your bread would undoubtedly be the one.

It gives you freedom for consumption for at least within 3-4 days.

More extended consumption period is what paper bag presents you.

· Shopping paper bags

Paper bags are suitable products for easy carrying to various places.

One of these places should be the market or store.

Paper bags are very much ideal for packing and fitting your goods when shopping.

Hence, if you need a place to stack up and pack all your shopping, then paper bags would serve you dearly.

Shopping paper bags

Shopping paper bags

Another thumbs up for paper bags is because they are open to customization to meet the customer’s requirements.

Such kinds of specialization could be the production of different sizes, colors, and branding.

In fact in the present, most countries around the globe have banned the use of plastic bags for shopping purposes.

As a result, a paper bag would dearly serve your shopping needs.

· Clothing paper bags

Do you always feel bothered with packing your clothes in a heavy traveling bag?

Are you tired of carrying your clothing in heavy bags everywhere you go?

We have a solution for you.

Clothing paper bag

Clothing paper bag

Over recent years, the clothing bags have proved to be very simple to use, flexible, convenient and light in weight.

Indeed am very sure everyone will one time encounter these kinds of new bags.

Besides, they come in different sizes giving you options for selecting the one that satisfies your needs.

Above all, they comprise of different types of materials such as black cardboard paper, white cardboard, coated paper, kraft paper or special paper.

Again, the different kinds of material variety give you the freedom to select your favorite material.

Notably, this class of paper bags is also much appealing to the eye as it’s possible to print them using different customized models such as logos, pictures, etc.

These customizations can as well help you promote your brand or company.

· Leisure paper bags

If you’re not aware, some brands of paper bags are solely suited for leisure purposes.

Today, several ladies carry specially designed paper bags when going to special occasions such as a walk, date, shopping or parties.

Leisure paper bags

Leisure paper bags

A survey conducted in Tokyo revealed that most teenagers prefer carrying leisure paper bags whenever going for a leisure walk to standard backpacks or even briefcases.

These leisure bags have got beautiful printable designs with different portrays to look good.

The custom printing and designs would help you reach a more diversified market.

Do you visit the nearest gymnasium to your house?

Then a leisure paper bag is suitable for you to carry along your fitness clothing, shoes, and even a water or energy drink bottle.

· Fruit paper bags

When it comes to the handling of fruits, a paper bag does so many functions.

Most common roles of a fruit paper bag are:

Fruit and vegetable paper bags

Fruit and vegetable paper bags

i. Packing fruits or carrying fruits from the market.

I trust whenever you go to the market to buy fruits of your choice, the attendant places them in a paper bag.

The packaging style is vital to help you carry the fruits along back home without worrying about wherever to put them.

Furthermore, the paper bags are very hygienic to shield them from getting contaminated with germs or harmful chemicals.

ii. Ripening fruits

Have you ever been in a stressful hurdle of trying to get fruits to ripen faster?

Continue reading…

It’s so much simpler to get fruits to ripen up. You only need to have a paper bag by your side.

Then do the following.

  • Place the fruits in a paper bag.
  • Leave the top of the paper bag slightly open.
  • Wait for a few days for the fruit to ripen. That’s it.

The technique behind this innovation is that most fruits release small quantities of ethylene gas.

Since you left the paper bag slightly open, the emitted ethylene gas doesn’t escape but in turn, gets reabsorbed by the fruits.

Continuous reabsorption of the ethylene gas initiates several physiological changes to the fruits.

The most notable one is accelerating the ripening process of the fruits.

Though it’s not easy to accurately estimate the rate of ripening of the fruits using this method.

What researchers have proven is that ripening via paper bags takes shorter time compared to natural maturation.

However, you need to ensure that the paper bag isn’t tightly closed because by doing that the fruits may instead rot.

How?

Tightly or thoroughly closed paper bag would leave no space for emission of other fruit emissions majorly moisture.

Apart from causing the rotting effect, the humidity also facilitates the growth of mold in the fruits. The same results will occur if you use plastic bags.

· Food paper bags

Unquestionably paper bags form the foundation of most food packaging needs because other than from being eco-friendly, they’re economical, variety and flexible.

Food paper bags

Food paper bags

On the economic perspective, if you’re dealing with a newly established business, then food paper bags is right for you to enable you to save on expenses.

Besides, you can custom print the bags to make you give your company the correct exposure you need to gain ‘muscle strength’ in the market.

Amongst a variety of diverse range of paper bags, the most popular ones include sulfite and kraft.

The food paper bags are always coated free and non-treated to reduce the initial costs

The bags are suitable for packing low – wet or moisture-containing food.

For that matter, you can use these bags for packing takeaway foods such as cookies, pastries, sandwiches, muffins, rolls, chips, etc.

They are specially designed to keep the food always fresh and crispy without it losing its taste.

Besides, the bags come in a variety of sizes.

Some of the typical categories of food paper bags are:

  • Coffee bags – they are available in different content carrying capacity such as 0.5 lb,2lb, 5 lb, etc. to make them even more effective, they are grease resistant.
  • Candy/bakery bags –perfect for a variety of foods.
  • Bread bags
  • Glassine bags
  • Cookie and sandwich bags – these are moisture and grease resistant.
  • Chicken carry bags

· Drug packaging bags

The pharmaceutical industry is a critical field that hugely relies on the use of paper bags.

The environmentally suitable and recyclable paper bags are often used to pack almost everything from prescriptions, dosing to the cards issued out.

Drug paper bags

Drug paper bags

These bags can be printed in many colors up to four and are available in different sizes depending on the application for use.

Other forms of customization are also familiar with these paper bags to assist you in branding and to advertise your business and the services you offer.

The bags are available in different raw materials including white or brown kraft, clay coated gloss.

Pharmacies, veterinary clinics, hospitals, and other health centers are just a few areas which utilize the need for paper bags.

Since packaging is an integral service in the pharmaceutical industry, it’s always thoroughly regulated depending on the country of origin of the bags.

Some of the standard measures put in place for the production of paper bags are:

  • Assurance of the patient wellbeing,
  • Confirmation of the efficacy of the drugs for the intended shelf life
  • Sufficient documentation of all the materials and processes of production
  • Regulation of any chances of contamination of the drugs by the packagings.
  • Avoidance of microbial contamination.
  • Control of quality degradation of the drugs by moisture, heat, etc.

The smaller packs of drugs are usually precisely measured and placed into smaller original paper bag packages.

Over the counter drugs are also the primary beneficiary of the paper bags.

The packaging contains all the relevant usage information including the dosage.

These drug paper bags are usually resistant to tamper as well as having the child resistant properties.

Those are some of the main areas and applications where you may use the paper bag making machines.

With that, we should move to the next segment of our discussion. Shall we?

Chapter 3: Classification of Paper Bag Making Machines

Due to the versatility nature of the paper bag making machines, they are available in different types.

Interestingly, each type of machine does a specific job of producing a single variety of bag since each can only work with a particular kind of raw material.

These machines belong to the following categories:

a) Fully Automatic Paper Bag Making Machine

A fully automatic paper bag making machine is a unique brand of device.

Indeed it’s the modern machine that manufacturers developed to solve problems earlier associated with the other systems.

For this one, almost all its operations are automated to work efficiently.

Fully automatic paper bag making machine

Fully automatic paper bag making machine – Photo courtesy: Sunrise

This kind of operational basis makes it suitable for accurately gathering the raw materials, folding them, stamping and finally processing the elements at high speed.

This machine is built using leading modern technology to optimize its performance.

Talking of fully automatic machine means that most of it’s provisions are computer driven.

Taking for example:

  • The machinery has got a touch screen and PC control system indicating that the machine shows the real time progress of the work.
  • Programmed counting system- the machine has got an automatic counting provision. So once the user inputs the number, the device ejects out the right quantity of paper bags set from the system.
  • Color mark tracking system – this function ensures that the paper bags cutting is precise in a form pattern after printing.
  • Dense designed mechanical transmission -this kind of design ensures that the material is stably passed, improves the mechanical properties and producing clean paper bags with superior appearance.

Furthermore, these kinds of machines are entirely automatic.

It only requires an operators involvement to refill the raw materials, collect the end products and key in the commands.

You need to know that even the fully automatic machines vary depending on the type of paper bag they process.

For example, we have got; medicine paper bag, grocery bag, butter paper bag, etc. as earlier mentioned.

Therefore, it implies that you don’t need to pick on any, but you select depending on the type of container you wish to produce.

To make this machine suitable and usable by all, they come in different sizes, ie.

Large, medium and small.

Therefore, you have got the freedom to purchase the best scope that you require.

Consequently, its features are amazing.

Let’s look into that:

Features and performances:

  • It has got a very high tensile strength
  • They are easy to maintain
  • Excellent finishes.
  • It Produces bags of precise dimensions.
  • The central control and the touch screen operates with PLC programmable logic controller.
  • They have got Production capacity in the range of 25000 pieces per hour and even more for some.
  • Maximum bag length produced a range between 7 inches to 27 inches.
  • They consume power in the range of 3 to 4 HP motor.
  • Made of stainless steel, therefore, are rust and corrosion free.

Advantages of Fully Automatic Paper Bag Making Machine

Fully automatic paper bag making machine

Fully automatic paper bag making machine

1) Precise gathering and folding

To make it do an accurate collection and folding, you can replace the system with the fully automatic electromechanical motor-driven system.

2) Independent operations

This machine is popular due to its ability to operate without much human intervention independently.

This mode of operation is primarily an added advantage to make you save on your expenses.

This is because you won’t spend a lot in needing to source for the services of machine attendants regularly.

3) Portability

Besides that, the automatic machine is portable and consumes less space.

Therefore you can quickly move it to your desired location on your floor space.

4) Durability and longer life span

The machine is constructed with selectively durable and long lasting materials which eliminate the need for constant disruptions from mechanical breakdowns.

5)      Continuous operations

It would be worthless to purchase a machine which only operates for a limited period and fails afterward.

The constant failure not only lags the production process but also makes it so much expensive.

In order to avoid all these unnecessary trendy failures, a fully automatic machine operates smoothly and continuously making it suitable for cutting down costs on operations.

6) Quick operations

This automated machine is capable of producing up to 25000 bags per hour while some do more than that.

However, this production rate depends on the quality of the paper you work prefer.

Disadvantage of Fully Automatic Paper Bag Making Machine

The most significant let down for this machine is the initial high costs which may subsequently make it generally expensive to purchase and run.

b) Semi-automatic Paper Bag Making Machine

In simple terms, a semi-automatic machine control process isn’t wholly automatic like the fully automatic machine but borrows some aspect from the manual system.

Semi automatic paper bag making machine

FSemi automatic paper bag making machine

Despite all that, this kind of operation doesn’t mean that it isn’t right – not at all.

A semi-automatic paper bag making machine would also promptly serve your needs and run properly.

Most users nowadays prefer the semi-automatic machine due to its relatively lower cost compared to the fully automatic one.

The features of these machines are also eye-catching as well.

The Features of semi-automatic paper bag making machine

  • Robust construction to ensure little vibration.
  • It smoothly varies the sizes of the paper bags to be produced.
  • They have got correct dimensions.
  • Quick and easy operational adjustment since the raw papers is appropriately fit in.
  • It’s fitted with one size plate and one size gear for a single size of the paper bag.
  • Longer durability
  • Semi-automatic machines come in various sizes, ie. The large, medium and small size.
  • Require little maintenance and therefore saves you expenses.
  • They come with different size plates and gears. The satchel bags are also acquirable.
  • It boasts of a high-speed production of paper bags.
  • They are made of stainless steel to eliminate rusting and corrosion.
  • The machine length and width varies depending on the dimension of the machine whether large, medium or small size.
  • It consumes little amount of power.

c) Manual Paper Bag Making Machine

Just like the other previous paper bag making machines, manually operated types are also available.

The only difference is that this machine manually operates and it requires continued human supervision to ascertain its operations.

However, it doesn’t mean that it’s difficult to operate.

After all, it was among the earliest inventions, and therefore it was built using quality and stable materials.

Above all, it costs less compared to the automatic and semi-automatic paper bag making machines.

So it would be suitable for a startup company or business to aid in cutting down costs.

The features of the manually operated paper bag making machine include:

  • It’s durable.
  • It has got a reliable and smooth operation.
  • It often requires low maintenance and servicing.
  • Most of these machines work with an electric voltage of approximately 240 V.
  • An average one has got a capacity of producing 50 – 60 bags per hour.
  • The maximum bag width of bags produced is about 100 -200 mm.
  • The maximum length of the bags is approximately 100 – 200 mm.
  • Its construction design is stiffly carried out.

The significant reservations about the manually operated paper bag making machines are:

  • The slower the speed of production.
  • It requires constant human supervision especially for controlling the input parameters.

The above shortcomings though shouldn’t prevent you from acquiring such a machine.

You need to evaluate and figure out what capacity your applications will require.

d) Square Bottom Paper Bag Making Machine

Square bottom paper bag making machine is a versatile machine that uses rolling paper as a raw material.

It produces 100 percent biodegradable paper bags for shopping and food handling.

If you may be wondering, this is the machine responsible for making those paper bags with the square bottoms.

Square bottom paper bag making machine

Square bottom paper bag making machine

The good news about this machine is its flexibility in incorporating several techniques during its operations such including:

  • Side gluing
  • Roll folding
  • Bottom folding
  • Bottom gluing
  • Bottom forming
  • Roll paper cutting, etc.

Most of these machines are automatic meaning that it’s operated and controlled via a computerized programmable system incorporated with a servo motor.

Together with a touch screen display beside it can produce various specifications of paper bags.

Features of Square Bottom Paper Bag Making Machine

  • Touch screen interface to display the progress of the operations.
  • It is fitted with servo motor drive to drive the machine faster and smoothly.
  • Durable and saves on energy.
  • Material lifting regulated with a pneumatic lift structure.
  • This device has an Accurate and automatic lubricating oil supply.

e) Square Bottom with Double Layer Paper Rolls Making Machine

The square bottom with double layer paper machine is a very similar one to the square bottom paper constructing the appliance.

The only difference is that this machinery produces the paper bags but with an apparent double layer square bottom.

All other machine parameters such as the control systems are quite similar.

f) Square Bottom with Handle Punching Paper Bag Making Machine

The square bottom with handle punching paper bag making machine is another device which would produce square-bottomed paper bags.

The improvement on this is the punched handle.

g) Hexagonal Bottom Paper Bag Making Machine

Hexagonal bottom paper bag making machine produces a uniquely hexagonally shaped bottom paper bags.

Now those are the major classes of the papermaking machines.

Next, we analyze the parts of this machine.

Chapter 4: Parts Of a Paper Bag Making Machine

Paper manufacturing device typically has various parts and segments.

Each segment serves a specific role in the manufacturing process.

Above all, these parts interdepend to run the papermaking process smoothly.

Let’s discuss more of these sections and the roles they play in the manufacturing process.

We can thus broadly divide the paper bag making the machine into the following parts and components.

I. Paper bag making machine structure

The structure of the machine is the outward design and appearance of the system.

The arrangement usually assumes a predetermined shape and size.

While it isn’t easy to indeed state the exact specific shape of a machine, the size is very evident.

Meaning that looking at the size of the paper bag making machine structure you can surely reveal the overall size of the device.

Consequently, the machine is either large, medium or small size.

So the primary functions of the structure are:

  • To provide the inner sections and parts of the device with a mechanical shield. Thus the shield encloses the interior components ensuring that they aren’t affected by any mechanical damage.
  • To make the device acquire suitable sizes and dimensions.

II. Material feeding part

Material feeding section is the entry point of the raw materials into the machine.

The feeding part is, therefore, the end you insert the raw materials.

Here the tube fed flexible packaging film is unwound from a feeder roll.

Remember that the paper bag making process involves passing a roll of the film via an intertwined operation including heating, sealing, cutting and combing.

The feeder roll is responsible for moving the film throughout the machine.

The material passes through the infeed into the feeder section.

The feeder rollers comprise of dual rubber lining which presses against each other by the action of pneumatic cylinders.

In the process of work the material sticks in between the rollers.

These gear coupled rollers move in opposite directions by the effect of a motor.

In most cases, the servo motors drive the rollers.

Why?

Because the rollers require high velocity, acceleration and deceleration, and superior accuracy.

Feeding is usually a recurrent process; hence other operations such as sealing and cutting happens once the supplying process is complete.

Since the feeding process is technical, an auxiliary system called the Dancer system helps to ease the workload.

The dancer system exclusively maintains a constant motion on the film web.

As a result, the feeders and dancers are vital for maintaining adequate tension and crucial accuracy in feeding.

III. Forming section

Once you have filled the raw materials, they in feed rollers supply them to the feeders.

The feeders concurrently provide these materials to the sealers and cutters again.

Feeders ensure the right feeding of the correct bag sizes appropriately.

Also, they work together with the print mark sensors for accurate supplying of the printed web.

The materials undergo the forming process only when the feeding has come to an end.

Afterward, the temperature sensitive sealing elements come into contact with the films for some time to seal the material.

The temperature and time at which the sealing occurs mostly depend on the type of the substance.

However, you need to maintain these two parameters constant.

The sealing element alignment you shall use largely depends on the sealing preferred by the bag designers.

The cutters only start to function when you have finished the feeding cycle.

However, you will notice that in most cases, the sealers and cutters operate at the same time.

You will notice the cutters together with the sealers all move in a vertical direction during this stage.

From this motion, the bags get cut or sealed.

Other extra operations depending on the design of the bag again do occur during the forming process.

They include a hole and handle punching, tamper proof sealing, spouting and caping — the auxiliary accessories attached to the machine perform these operations.

IV. Control unit

Control unit is the main section from which the machine is controlled or driven.

This part is essential to the whole operational basis of the device.

Due to that, the machine’s control must be of better technological capability.

The control unit comprises of the touch screen display, mainframe servo motor control.

Section of control unit

Section of control unit

From the touch screen display, you can set different operational parameters such as bag length, the speed of the machine, etc.

Additionally, the touch screen display is the part where you can monitor the manufacturing process.

V. Discharge rack part

Now the discharge rack part is the ultimate end section of the machine.

The rack part comprises of the stacker or a conveyor belt.

The rack parts are usually of different configurations depending on the machine design.

For some machines, each bag is stacked into one compartment by the belt and transmitted downstream in stacks.

While in other devices an operator is needed to eject the stacks physically.

In other machines, the rack part discharges each bag into the next device.

The rack part could be servo driven.

VI. Puncture part

The puncture part is the segment in the machinery whereby the paper bag punctures introduces holes onto the bag.

There are two common types of perforations namely the shaft and handle.

Check out for the hole or handle punctures between the feeder sections.

As we earlier mentioned, hoe/handle punctures are some of the additional accessories.

Others include zippers, tamper-proof sealers, etc. also the positions of the accessories depends on their functions.

Pneumatic or servo systems may drive the punctures, but they can as well rely on other systems.

VII. Break off & Gluing Section

Gluing section is also another crucial segment of the device.

In most machinery, you will find it at the rear ends of the paper bag making machines.

Here at the gluing sections, a combination of valves spread an adhesive uniformly onto the bottom ends of each paper bags.

Note that those are the standard parts of a paper bag making machine.

It’s also likely that you might come across some other sections.

Next, we discuss another vital concept about the machinery.

Chapter 5: How Paper Bag Making Machine Works

The operational basis of paper bag making machine is quite simple and direct.

The simplified process entails raw material feeding, sealing, cutting and finally stacking.

Apart from that, we will look at the step by step process to the endpoint.

Let’s begin.

Step 1: Roll Paper Feeding and Folding

Roll paper feeding is the actual initial stage of the operation of the device.

The first stage starts with the film unwind gadget.

The unwind at this part unwinds the film in the form of rolls into the machine from a feeder roll.

The unwinding though occurs in a way that the film tension is still intact.

Pneumatic or friction brake provides the adequate necessary film tension required here.

The film unwinds in a manner that it gets folded appropriately into the infeed chamber.

The film unwinds then takes the film straight into the feed chamber.

The feeder rolls after that transfer the film turns into the next segment.

Note that feeding is an intermittent operation.

Step 2: Paper Bag Forming

The paper bag formation process only kicks off once the feeding process ends.

During this stage, the feeder rolls from the in-feed section transfer the film materials to the formation stage.

The formation stage is the segment whereby the actual fabrication of the paper bag takes place.

Basically, to operations occur here.

These activities mainly involve: sealing and cutting.

The film material passes through the temperature regulated elements for a specific duration.

These heat sensitive elements provide an effective sealing to the film.

Again, you need to set the sealing time and the quantity of temperature by the type of material you’re processing.

Which means that a higher quality material would require a much temperature and longer time for sealing.

Separate hardware or a unique accessory in some machinery is responsible for maintaining the temperatures of the sealing elements.

After the sealing operation is complete, the materials pass through chiller units which comprise of several rollers.

The chiller units bring down the temperature of the fabrics.

The chiller rollers perform the cooling process by sprinkling water on the materials.

Most importantly, the machine type should conform to the sealing type recommended by the bag design.

Step 3: Cutting

When the sealing process is complete, the materials then pass through the cutters.

The cutters have got sharp blades which move upwards and downwards as they act on the fabrics.

It’s true to say that the cutting step is the core of the manufacturing process.

The blades at the cutting section cut the materials into distinct shapes and sizes.

The design of the cutting segment largely determines the type of the machine.

Step 4: Gluing

The glue application comes in after the cutting and folding process is complete.

Attaching and combining of several cut pieces takes place here.

Specifically, the gluing compartment spreads the glue on the end portions of the paper bags.

The gluing application occurs in a longitudinal and a transversal manner.

Afterward, the material passes to the next stage.

Step 5: End Folding

Here the almost ready paper bag passes through a system of rollers which presses the paper bags to make them stick intact and comes out wholly in a single piece.

The end sections of the bags also get folded appropriately.

Step 6: Paste Bottom

The bottom and the top sections of the different paper bags would require pasting.

For that reason, the paper bags pass through the pasting segment.

Such bags that undergo the pasting process shows proper sealing features suitable for packing powdery materials and the powder itself.

For example, they are ideal for packing materials such as; chemical products, synthetic resins, flour, carbon block, and foods, etc.

The valve bag and single bottom bags are very suitable for pasting.

Step 7: Finished Bag

After all the process is complete, the bags get transferred to the stacker.

At this point, the stacker stacks the many pieces together and later transports them to the conveyor.

Fully automatic paper bag making machine

Paper bags

The stacking devices are of varied formations since they solely depend on the bag design and also the layout of the machine.

On the belt, the conveyor transmits the different pieces of paper bags to the ejection point from where you may now pick them.

In some machines, the paper bag collection would require the services of a superintendent.

There you go. It’s that simple and straight forward.

Let’s move on to an instrumental segment of our discussion.

Chapter 6: Paper Bag Making Specifications

Are you a paper bag importer or manufacturer?

If in case you are, then this section is very vital for you.

Let’s move on.

Paper bags

 Fully automatic paper bag making machine

The paper bag making specifications give stringent measures that all the stakeholders need to comply and adhere to for better handling and productions of paper bags.

These standard parameters are different and numerous.

Among them, we shall discuss the following:

  • Dimensions
  • Material
  • Control systems
  • Production speed
  • Bottom designs
  • Advanced technologies

We begin…

a. Automatic Control Systems

The operations and control systems of the machine need to be at least intuitive.

The advantages of automated machinery are so numerous that you can’t help but acquire one.

An automated control system needs to be capable of performing the following functions:

  • Gathering
  • Folding
  • Sealing
  • Cutting
  • Stacking
  • Conveying at high speed

Apart from that, an automatic control system is also favorable due to some unique roles such as

  • Electronic paper jam detection
  • Accuracy gathering detection
  • Preset counting capability

The automatic controls also come with inbuilt sensors to guarantee detection of any fault.

Besides, it’s compatible with an Arduino control Board.

The machine may seem complicated, but the good news is that it efficiently runs without any necessary human involvement.

b. Paper Dimensions

The sizes of the paper bag shall be made to adhere to as those listed in the table below.

Paper bag dimensions

Paper bag dimensions – Photo courtesy: Dispak

Size DesignationThe range of bag width

Max (mm)

The range of bag width

Min. (mm)

The range of bag Length (mm)
183-8951-54185
2102-10852-58210
3117-12868-74215
4124-13373-79240
6152-16979-85290
10162-17196-102320
12177-186100-106335
16193-202108-114370
20207-216127-136390
25207-216127-136440
35207-216127-136575

However, you need to understand that these dimensions may change slightly depending on your country’s set standards.

c. Paper Bag making speeds

Ensure that you set the machine at an optimal operational speed.

Therefore, it isn’t a good idea to set the rate too high or too low.

You will notice that the machine has got two kinds of speed, ie.

  • The host speed – this is the exact speed of the machine you input.
  • The actual speed – this is the speed at which the machine is operating.

It is thus reasonable to set the speed of your device in the following range.

  • Average speed – 200 – 300 ppm.
  • Maximum speed – above 400 ppm.

d. Paper Bag Bottom Designs

The bags need to be open at one end and have a gummed rectangular bottom.

e. General Properties

The newly manufactured paper should be dust, holes, wood splinters and minor defects free.

The bag also needs to be either bleached or unbleached.

Most importantly, the paper bags should belong to three groups/classes as outlined in the table below.

CharacteristicsClass 1Class 2Class 3
Grammage, g/m2±5%a506070
Bursting Strength, K.Pa. min90124162
Tearing resistance (MD) Mn, min320430540

f. Adhesive

The type of adhesive for use need to be gummed seams.

g. Packaging

You need to pack the paper bags in containers or maybe materials that can protect the bags from mechanical damage during ordinary handling or even transportation.

h. Marking of the Paper Bags

After the complete process of manufacturing, the paper bags should have the following markings embedded onto them.

  • Manufacturers/importers name, trademark or both.
  • Bag size designation
  • Quantity of the bags
  • Country of manufacture.

i. Closures of the Bag

When making the bags, you have to ensure that you gum down continuously the entire length of the seam.

Also, gum closure overlaps of the rectangular shape bottoms.

Gumming is vital for cases whereby the contents of the bags are in powdery form to prevent any leakage of the bag content via the overlaps.

Chapter 7: Paper Bag Making Machine Support Equipment

This machine is never always complete without other optional but very necessary equipment.

These auxiliary gadgets help in advancing the working mechanisms of the papermaking machinery.

We shall discuss two necessary components of the support devices.

They include:

Paper bag making machine

Paper bag making machine – Photo courtesy: RUIZHI

1) Printing Machine

A printing machine is an essential gadget found in the whole set of papermaking machinery.

Its purpose is apparent and straight forward; to stamp printings on the paper bag.

Now, remember the markings on the paper bags we previously discussed such as the manufacturer’s design, logo, size designations, etc.?

Right, it’s the printing machine that embeds all those marks.

The precise location for fixing the printing machine is always the region in between the feeders.

At these locations, the print mark controls in the printing machine act on the feeders to help in positioning the bags rightly beneath the blades and sealers.

The print mark controls also have got a film registration sensor which works on the film which has got graphics or even pre-printed information.

The registration mark printed on the bags is necessary since it opens a technique of making small adjustments to the exact tip placement of the seal and cutting on the bag.

The printing machines are of numerous types and sometimes selecting the appropriate might be a big task.

However, the reasonable way to go about it is by purchasing the kind that the paper bag manufacturer recommends.

Following the manufacturers’advice would help you in finding your machinery compatible printing device.

Besides, nowadays most paper bag making machines come fully packed with an already installed printing machine so that you don’t have to worry about acquiring one.

2) Pneumatic lifting system

Pneumatic lifting system is a very technical and multipurpose gadget that’s incorporated into the paper bag machinery.

It serves several roles here.

Most of its functions are in aid of other auxiliary devices which facilitates the purposes of the primary system.

So the pneumatic lifting systems are useful in the following areas:

  • In the unwind section specifically an un-powered unwind system, the pneumatic lifting system applies brakes for controlling the unwinding process thereby providing film tension.
  • In the in-feed segment, the pneumatic cylinders press the rollers which have got dual linings against themselves. The resultant pressing force makes the materials squeeze in between the rollers.
  • The pneumatic system in most machinery drives the accessory modules integrated into the base machine. Some of these accessory modules which rely upon pneumatic system include hole/handle punch component, zippers, sealers, cap/spout units, etc.

Chapter 8: How to Troubleshoot Paper Bag Making Machine

Have you ever experienced problems with your machine system?

Did you solve the issue?

How did you manage it?

In this section, I will take you through ways of analyzing, diagnosing and resolving some of the issues you come by when using your gadget.

Some of these problems are simple to address while others are tiresome.

Again, some of these glitches occur due to mechanical and technical failures of the machine.

I have compiled a list of all the common hitches often experienced by most users in this section.

Printed paper bags

Printed paper bags

Furthermore, detailed suggestions on how to combat the complications are available.

Read till the end our top ten occasionally experienced problems and their solutions.

1. Misaligning of the paper tube

Before doing anything, ensure that the size of the tube forming mold is appropriate.

Next, you adjust the middle insert wheels in a vertical position, ie. Up and down.

2. Are the four corners of the paper bag bottom poorly designed?

To solve this inappropriate designing, follow these steps:

  • Confirm the accuracy of the distance in between the first and second clamp.
  • Then, verify the correctness of the central clamp opening.
  • Also, verify if the distance in between the first line and second clamp is right.
  • Besides, confirm whether the incorporated sizes of the sides are correct.
  • Now confirm in case the insert knife is at the appropriate position.
  • After that, verify if the open bottom clamp is capable of reaching the first line.
  • Check in case the bottom forming molds position is correct.
  • After that, ascertain the right pressure production of the mechanical finger.
  • Finally, see if the pressure of the middle clamp is enough.

3. Wavering of the paper tube

Do the following to correct the paper tube.

  • Confirm if the tension of the unwinding is right.
  • Also, Alter the position of the insert plate thereby making it have a good opening inclination.
  • Again, Verify if the pressure and friction wheel are at a suitable point.
  • Finally, confirm the position of the paper tube forming mold. Is it at the right location?

4. Try to vary the paper tube actual length with the computer set length.

Rectify this situation by:

  • Verifying the pressure of the pull paper wheel.
  • Confirm the pressure of the delivery wheel together with its location with the knife.
  • Whenever you’re working with a printed paper, always ensure that the lengths of the dual color mark correspond to the set length.

5. The manufactured paper bag is closing poor.

To correct this mistake, you need to:

  • Confirm the correspondence of the closing bars length with the bag width.
  • Again verify if the closing bars locked location is okay.
  • See whether the height of the bag bottom baffles accurate.
  • Finally, you may clean the closing bar. Make sure you get rid of the glue and dirt there.

6. Have you broken paper bag corners?

Consider the following solutions

  • Confirm incase the pulling of the rollers open bottom is right.
  • Also, verify if the incorporated dimensions of the side are okay.
  • Ascertain the position of the open bottom clamp.

7. Does bag bottom continuously glue?

  • See if the bottom glue is excessive and regulate it.
  • Confirm the size of the cushion of the coating glue foam rubber. If it’s too big, then you need to shorten it.
  • Lastly, you may verify whether the bottom glue is suitable for base gluing.

8. Anterior paper bottom damaged?

  • You need to See if the center of the open clamp position is inappropriate.
  • Confirm whether the height of the middle clamp open is right.

9. Irregular paper tube side and formation of wrinkles?

  • See if the pressure of the delivery belt is extreme.
  • After that ascertain the appropriateness of the location of the delivery tube.

10. Irregular collection of paper bags?

  • Confirm the amount of the amount of pressure at the delivery belt.
  • Verify the type of transport mechanism in place at the delivery belt. Is it an electrically improved setting method? If so, then you can adjust it from the touch screen.

Conclusion

That’s it.

We have come to the end of this article. I trust you have gained a lot of information.

I am confident you got all the necessary information to start a paper bag making business if you’re looking forward to venturing in the manufacturing industry.

For importers, the guide is as well suited for you.

Thanks for choosing to shift into an eco-friendly product.

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