21 May
Fun Facts about Stretch Film

Stretch film is mainly used for storage and transportation, and it is made from an incredibly durable material. If your business transports a lot of products or has a lot of inventory, it’s a good idea to consider using stretch film, to save time, money and to protect your products.  However, not all stretch wraps are created equal. Check out some of the interesting facts that you probably don’t know about stretch film.     What is Stretch Film Made of? Stretch wrap is a plastic film that is wrapped around products. It is a complicated process to make stretch film, and many different types of resins and additives are used in the process. One thing is for sure: it all starts as small plastic pellets of polymeric.  There are different types of additives used in the manufacturing process, and they all depend on the kind of film to be created. Additives can make the film stickier, or it can influence pigment for tinted films.  The resin should be heated and compressed, and once this is done, it’s cut with a die machine, creating a smooth layer of plastic.    Cast Stretch As the name suggests, cast stretch wrap is manufactured using a cast extrusion process. Cast stretch film process allows to have: - Excellent clarity- Less force to stretch- More tear resistance- Unwind quietly from pallet wrapping machines- Superior cling This type of film is available for both machine grade and hand grade.    Blown Stretch Blow stretch wrap is manufactured using the blown extrusion process. This type of film is tougher and more resilient than cast film. It has a greater load holding power because of the higher mechanical properties of blown film. It is also noisier when it unwinds, and it’s more expensive.   Different Sizes Stretch film comes in different sizes, so make sure you choose the right one for your application. They have different widths and thickness, so feel free to ask an expert before you buy one. Remember you don’t want to use a 150 gauge stretch film when 60 gauge would be enough.  Also keep in mind that the thinner the stretch is, the less wrapping force it provides. And due to an increased number of film breaks, you will need to use multiple layers. So if your product is big and heavy, it is a good idea to use a thicker stretch film. This way you can save money and time.   Stretch Film Uses Stretch film in Malaysia is commonly used in factories, manufacturing and storage. The main purpose of stretch film is to secure loads of items, for storage or transportation.  Stretch film is wrapped around products to make sure they are secure and protected from outside elements.  Another use of stretch film is for transporting furniture to protect them while they are inside the moving truck. In fact, many fragile items, such as windows and mirrors are also transported wrapped in stretch film.  Stretch film protects your items from: - The sun, if you use UV stretch film- Rain- Dust- Moisture- Debris and- Thieves Recycle Many people are concerned about using too much plastic to wrap their products, but you should know that stretch film is recyclable.  If you have any doubt on how to recycle, feel free to ask the friendly staff at Thong Guan, your stretch film manufacturer in Malaysia.   Save Money Did you know that pre-stretch film can help you save money? When you use pre-stretch film to wrap your products, you can use less to keep your load safe. So if you want to save money, go for high quality pre-stretch film.    In a Nutshell  As you can see, there are various benefits of using stretch film, and it is perfect for both small and large businesses. In fact, stretch film is a very clean material that helps you keep away rodents and pests in your storage room. Stretch film can also be used to protect items from the environment. It protects your products from the sun, rain, dust and even dew if left outside.   Lastly, stretch film is usually purchased by weight, and there is a set price per roll. Experienced stretch film manufacturer in Malaysia, such as Thong Guan can help you decide which type and how much stretch film you will need for each of your loads. Having an exact measurement helps you save money in the long run because the ideal amount of stretch film is determined by the shape, type and weight of your load.        

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22 April
Stretch Wrapping vs. Shrink Wrapping

Stretch wrap and shrink wrap are sometimes said to be similar because they are both transparent and are made to hold products. However, there is a vast difference between stretch packaging and shrink packaging.    First of all, stretch film is made, in most cases, from polyethylene. It can be used to wrap a lot of items and it is capable of holding the products tightly thanks to its elasticity. On the other hand, shrink wraps are made from polyolefin plastics, and it shrinks to fit the products when heat is applied.  Stretch wrap is used for holding loads and products together on a pallet for transportation or storage purposes.  There are many types of stretch wraps like: - UV stretch wrap- High performance stretch wrap film- Vented Pallet Wrap- Anti-static stretch film- Colored Stretch film- Pre-Stretched film, etc.  Stretch wrap is employed to protect a single product from dust or weather. Sometimes it can be used to tightly combine smaller items together. It can also be very useful to cover foods, such as cheese, meats and vegetables.    Advantages of Stretch Wrap Secure Stretch wrap protects and secure products from dust and weather. If you choose a UV stretch film, you can also protect your items from the sun. Better price Stretch film is cheaper than other types of pallet wrapping. The equipment needed for stretch wrapping is less expensive than other forms of wrapping.  Versatility Since stretch wrap comes in many styles, you will have no problem finding one that suits your needs.    Advantages of Shrink Wrap Protective Shrink wrap is great for securing and protective products from weather, moist, dirt and damage. Used correctly, shrink wrap should not have any problems transporting your products from one place to another. Ventilation You can reduce any damage caused by moist when using shrink wrap because it has the option of being ventilated.   Equipment For both wraps, you will need special equipment to wrap your products.  Stretch Film Equipment Manual If you are wrapping less than 15 loads per day, you can use manual wrappers. Manual wrappers include the extended core with a film extension used as a handle. They also have mechanical brakes, and they use pole wrappers for easier use.  Pallet wrapping machines are used to reduce waste and to increase efficiency. You can choose: Semi-automatic machines Semi automatic machines require an operator to place the pallet loads on the machine. The pallet wrapping machine then applies the stretch film vertically and wraps the pallet load.  Automatic wrappers  The fully automatic stretch wrappers machines eliminate the need for an operator to place the pallet loads. They reduce the number of employees and time needed to unitize each pallet load.   Shrink Equipment If you are using any type of shrink wrap you will need a heating machine. There are different types of shrink wrap machines available for heating: - Heat Guns: They release a stream of hot air and they are necessary for more professional looking shrink wrap jobs.  - Shrink tunnels: They are mounted over or around a conveyor system. The products have the shrink film loosely applied, with heat the film shrinks to fit perfectly around the item.    For the shrink wrap, you need 300 degrees Fahrenheit to shrink perfectly.  Before the products are ready for heating, the shrink wrap sealing machines will need to cut and seal the shrink. Once this has been done, you can tighten the plastic.  As you can see, both films have made packaging for storage and transportation easy and economic. Thanks to stretch film and shrink films, the packed items are protected to avoid any damage. These wraps protect the goods from dust, dirt and weather, and help users to save time and money.    In short, stretch film and shrink wrap are completely different. Shrink wrap is mostly used for items like food, pharmaceutical and in the retail industry while stretch film is usually used for transportation purposes.  If you have questions regarding Stretch Wrapping and Shrink Wrapping, don’t hesitate to contact our friendly staff at https://www.thongguan.com/contact-us   

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26 March
80 Gauge Stretch Wrap

So what exactly is 80 gauge stretch wrap? If you are familiar with stretch wrap, the term 80 gauge stretch wrap should be something you are familiar with. But if you are not, feel free to read on to find out everything about 80 gauge stretch wrap.  The term 80 gauge stretch film refers to the thickness of the wrap. It’s the most common gauge, known for being very versatile and for handling a variety of applications.  It’s great for loads up to 2200-2400 pounds. When you use 80 gauge stretch film in a pallet wrapping machine, wrapping is more efficient and waste can be reduced. In fact, it has the same strength as 12”-20” hand stretch wrap. But what exactly is a gauge? A gauge is a measurement to measure thin plastics. There are other measures when referring to stretch wrap with the most common ones being gauge, micron and mil. A 20 micron stretch wrap has the same thickness of an 80 gauge stretch film. But keep in mind that even though two stretch films have the same thickness, it does not mean they are of the same quality.    What are the main differences between 80 stretch wrap? As mentioned, two stretch films with the same thickness do not necessarily have the same film quality.  A true 80 gauge stretch wrap can be stretched up to 200% of its original length. But this can vary depending on the type of extrusion process.  There are two different kinds of extrusion process: Blown and Cast. Each extrusion process will produce different film characteristics.  Let’s take a look at everything in further detail.    Blown versus Cast 80 Gauge Stretch film As mentioned, a standard 80 gauge stretch film will have different characteristics depending on the manufacturing process.  So what is the difference between cast extrusion and blown extrusion?   Cast Extrusion Stretch Film Cast extrusion cools film resins with chilled rollers. This process allows cast stretch film to have better clarity and it requires less force to stretch. Plus it increases tear resistance and it unwinds quietly from pallet wrapping machines. Cast extrusion stretch film offers a superior cling.  Some advantages of cast stretch films are that it is less expensive and wrapped products can be seen with more clarity. However, cast stretch film has less memory and tear resistance than blown stretch wrap.     Blow Extrusion Stretch Film Blow extrusion cools film resin with air. This process allows stretch film to be tougher and more resilient than cast film.  Blown stretch wrap offers high load and stretch capacity and it has a higher tear resistance. On the other hand, it is also more expensive, noisy when unwound from rolls, and has poor clarity. The most common differences between 80 gauge cast stretch film and 80 gauge blown stretch film are:    80 Gauge Cast Stretch film   - Clearer  - Less noise unwinding  - Less puncture resistance   80 Gauge Blown Stretch Film - Loud unwind - Hazy - Higher puncture resistance - Higher cost   So if you have been using a blown gauge stretch wrap, and happen to try a cast 80 gauge stretch film, you will notice the difference between the two films.  In fact, one can determine if a stretch film is a true 80 gauge stretch wrap by using a micrometer to check the film thickness. A micrometer is a measuring tool and it is used to measure the thickness of objects. You can also do a film thickness equation to determine the thickness of stretch wrap.    Thickness Equation In order to use the thick equation, find out the weight of an unused roll of stretch wrap. Just use the formula below to determine the thickness of stretch films: Roll Weight ÷ Roll Width ÷ Roll Length ÷ 12 x 30,000 = Film Thickness In short, 80 gauge stretch film offers more efficient wrapping and minimizes waste. It also has superior stretchability as compared to normal stretch films. To find out more about 80 gauge stretch film and other types of stretch films, talk to our friendly salespersons or visit www.thongguan.com.   

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28 February
Pallet Wrapping Machine - How to Choose The Right One?

Buying a pallet wrapping machine or upgrading one is a big decision and investment. As each production line is different, every company faces unique challenges when choosing and deciding on a pallet wrapping machine that is relevant to their business, products and floor space. Remember the better your equipment wraps and protects your products, the better your return of investment (ROI).    How to choose the right Pallet Wrapping Machine? There are three main questions you need to ask before buying a pallet wrapping machine: 1. How many loads and how fast are you wrapping now? How much do you wish to increase in the future? 2. What type of loads do you have? Examples: boxes, bags, shapes, fragile, etc. 3. How much money is allocated for buying a pallet wrapping machine? Let’s talk more about it.   Goals Before buying a stretch wrapper machine, you should have a clear idea what you need the machine to do. You need to think through all the details of your production line.  If your business is switching from hand wrapping, you can start by trying an automatic stretch wrapper or semi automatic stretch wrapper. You will see a huge difference in terms of safety production, consistency and an increase in your return of investment.  To define your wrapping goals, you need to ask yourself: What type of production does your business have now?  - Seasonally- In five years- In ten years With these information you can find out what type of stretch wrapper machine is enough for your production. You can definitely start with a semi automatic stretch wrapping machine and upgrade to full automation in the future.  Moreover, it’s equally important to determine the features you need in your wrapping machine. This can be a low profile turntable or a top sheet dispenser to protect a pallet load from the sun and the rain. By doing this, you can narrow your choices and consider which is the right one for you.  In addition, consider how your pallet loads are created, how they move and the space you have for a wrapper machine.  Once you determine your needs and goals, you are ready to seek out the most suitable stretch wrapping machine.    Options Let’s take a look at the available options: Turntable This stretch wrap system places a load on a turntable. The turntable rotates to dispense the stretch film. Depending on the height of the load, you can wrap around 45-55 loads per hour. It’s key to consistently maintain the correct film tension. Turntable is a great option if you have stable loads and a low to medium production rate.  Rotary arm  This stretch wrap system uses an overhead arm that rotates around the load to apply the wrapping film. In this type of system, the load does not rotate so it can wrap at high speed -- best for lighter, fragile, heavier and unstable loads.  This stretch wrap system maintains precise, consistent film tension. It has a production rate of up to 95 loads per hour.    Stretch hood This wrapping system can secure a wide range of pallet loads. This type of wrapping machine it is more expensive than rotary or turntable but the benefits are greater.  Stretch hood optimizes product safety because it protects against humidity, UV and other weather elements. It is also against cargo shift during transport.  The Stretch hood system produces a transparent hood to ensure product visibility and minimizes wrap film usage. This stretch system wraps up to 100 loads per hour.    Automation In addition to the three types of pallet wrap systems as mentioned above, you shall also choose the degree of automation: manual, semi-automatic and automatic.  - Manual: this level of automation is better in low output settings.  - Semi-automatic: this level of automation includes turntable wrappers and rotary arm machines. It wraps automatically but you need an employee to place unwrapped loads and pick up the wrapped ones.  - Fully automatic equipment: it wraps film automatically (applied, cut and sealed). This fully automatic wrappers are ideally for high output packaging.   To know which type of pallet wrapping machine is right for you, consider all the factors above, identify the type of pallet loads you have and the wrapping rate you want, and finally make your decision based in your budget.  There are many stretch film manufacturers in Malaysia that can recommend the best pallet wrapping machine for your business and products. Remember to choose wisely to protect your products and investment.   

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24 January
Cast vs. Blown Stretch Wrap Film. What is the difference?

You have heard the terms cast stretch film and blown stretch film, but I am guessing you don’t know the differences between them, especially their advantages. Wish to find out everything about cast and blown stretch wrap film? Read on. Let’s begin by explaining what Stretch film is. Stretch film is a plastic film made from Linear Low Density Polyethylene (LLDPE) that is extremely stretchable. The purpose of stretch film is to wrap around products to keep them secure in place. The main advantages of using stretch film are: - Minimize product loss
 - Reduce the risk of product tampering
 - Reduce worker injury Stretch films come in different types, widths and thickness. There are also two ways of stretch extrusion: Cast Stretch Film and Blown Stretch film. Certainly both processes have their pros and cons. The main difference between these two types of Stretch Wrap Film is the way they are created and manufactured. These differences affect the usability and the price of the film.   Cast Stretch Wrap Film Cast stretch wrap film is made through a cast extrusion process. It started with a granular resin being fed into a heated screw barrel. Next, the molten resin is continuously delivered into a narrow slot die barrel. The dimension of the slot in the die determines the thickness and width of the stretch wrap. After going through the die, the resin is immediately delivered over a chilled roller, which quickly solidifies and cools the film. To draw the wrap to the winding and slitting stations, tension rollers are used. The cast stretch film method is much faster than the blown extrusion besides costing less, as more can be made per hour. Pallet machine wrap is the most common type of film produced by this method. Properties - Clear and Glossy
 - No noise to unwind 
 - Great strength in the machine direction
 - Consistent for pallet wrapping machine
 Advantages - Less expensive - lower cost in manufacturing
 - High transparency
 - Double sided cling
 - Uniform thickness
 - No limits on the thickness of the film
 - Excellent barrier for moisture, gases and aroma
 Disadvantages - Stretches easily and can cause shifting
 - Minimal ability to go back to original state after stretching
 - Standard tearing can occur when stressed too much
   Blown Stretch Wrap Film The manufacturing process for blown stretch wrap film is through a blown film extrusion. It begins with the granular resin being fed by a heated screw barrel. Next, the resin is forced into a circular die. Afterwards, the hot resin is vertically blown upward and outward, which is also known as a bubble. The bubble is not cooled immediately. Instead it is cooled gradually by air as it goes up the tower. This slow cooling process is one of the reasons the wrap film looks hazy and dull. The film is nipped together once it rises to the very top of the tower and it is drawn down to the winding and slitting stations with guide rollers. Blown stretch wrap film generally costs more to make because the output per hour is less than cast films.   Properties - Cloudy until stretched
 - Loud when releasing from the roll
 - Manufacturing process allows greater resistance to breaking 
 - Bi-directional tear resistance
 - Excellent for “C” loads
 - 1 side cling, great for higher load retention
 Advantages - High quality, stretch and load holding power
 - Produces less manufacturing scrap
 - Superior puncture resistance
 - Provides maximum toughness 
 - Has a high level of cling
 - Lower gloss reducing reflections
 - Stretches much farther to cover more pallets with less film
 - Won’t re-stretch once applied
 Disadvantages - The advanced manufacturing process increases the cost
 - Not crystal clear; it makes reading and scanning harder
 - Noisy
   As you can see, both stretch wrap films are great for wrapping your products. It all depends on your individual needs and requirements. There are many Stretch film manufacturers in Malaysia that can help you will your specific application. To know more, feel free to contact our friendly salespersons at: https://www.thongguan.com/contact-us  

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27 December
Is Stretch Wrap Recyclable?

Everyone is talking about reduction in packaging. These days it’s all about going green and being environmentally friendly. However, is it a good idea to recycle stretch wrap? Stretch film is made, most of the time, of linear low density polyethylene (LLDPE). Can it be recycled? The answer is yes. Low density polyethylene is denoted as category four in recycling. So when should you recycle stretch film? The answer is always. In fact, only 5.4% stretch film is recovered each year, a figure that is way too low. Are you aware that the most valuable recyclable material in your warehouse center may be stretch wrap? This means not only can stretch film be recycled, it’s actually a great idea to recycle them. To save thousands of pounds of stretch wrap per year, everyone should in fact, consider recycling -- this will also mean dollars saved or dollars spent. Don’t forget that stretch wrap is perhaps the largest component of warehouse center’s waste stream. By eliminating stretch film from the waste stream, a company/manufacturer/country can decrease the number of pulls, which translates to saving on money. Plus by reducing the volume of solid waste needed to be thrown away, and lowering your transportation costs, yearly trash bill can be reduced tremendously.   How to Start? So if you have decided to start recycling your stretch wrap, follow these steps: Contact a recycle company for assistance and to arrange pick-up. Determine and design a collection and handling system. Educate employees who will be in charge of the program. Use a quality control program. It is also a good idea to contact vendors to let them know that you have a recycling program. Ask them to keep tapes and labels off the stretch wrap and not to use tinted films. In order to let everybody know about the recycle program, place collection containers clearly labeled, and conveniently located in your warehouse center. There should be a container marked “Stretch Wrap Only” and another one for “Plastic Only”. A good location to place the containers would be in receiving or in processing areas. A container should be located in shipping and near the stretch wrapper. Your first opportunity to recover stretch wrap is when you are receiving. So when stretch wrap is taken away from pallets, it should be placed in collection containers immediately. Remember stretch wrap is tacky and if it is placed on the floor, it will pick up dirt and other contaminants. Click HERE to know more about the History of Stretch Wrap.   How to Succeed Finally, the key to success of your stretch wrap recycling program is your employees. It is very important to make sure they understand the importance of their contribution. Explain to them your company environmental goals and emphasize their roles.  Accentuate that tapes and paper labels must be removed and are serious contaminants. Make sure they do not use recycling containers as trash receptacles. Recognize that permanent employee education and motivation are essential to long term success. It is essential that you and your employees have a firm commitment for the recycle program. And once you’ve started a recycle program for stretch wrap, it is a good idea to expand to other areas as well, such as office paper and bales corrugated. Recycling stretch wrap presents several opportunities. A successful program can offer great economic benefits. Plus diverting stretch wrap from trash bins will save energy and preserve resources. As you can see, recycling is a worthy goal, but one should also consider using less films too. So how much stretch wrap should be used? That depends on a number of variables, with one of them being the weight of the film. Once the pre-stretch, gauge and wrap pattern are optimized for the required containment force, then film should be cut and weighed. The bottom line is that you should recycle more stretch wrap and use less, if one is keen on saving money and helping the planet. *Recommended reading: What is the difference between stretch wrap and shrink wrap?  

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16 November
How Stretch Films are Made

There are different types of stretch films that cater to different customer needs and application. So what is the best stretch film? The best stretch films are the ones that meet your goals, requirements and expectations. Factors to consider are film gauge, pre-stretch capability, puncture resistance, tear propagation, etc. The fact is, stretch film is one of the best inventions in industry application. But do you know how stretch films are made? In fact, knowing a little bit more about stretch films will help you choose the type of stretch films that are right for you, or the approach that you use to wrap your products. The first thing you need to know is that there are two ways to make stretch films: cast and blown. Both have distinct advantages and disadvantages. There are also several traits that both types of films share, such as durability, which means how easily they tear compared to other types.   Film Extrusion All stretch films begin with polymeric feed stock, which is often referred to ‘resin’. Some of the additives used in stretch films include: Pigment: for tinted or opaque films, mostly used for security reasons Tackifier: to provide cling so the film can stick to itself UV resistance: to prevent deterioration of film if they are stored outside The extrusion process involves heating and compression of resin. Resin is first melted at the right temperature for the needed viscosity, before it’s being pushed through a die where the layer of plastic is created.   Blown Stretch Film Blown stretch film is made by blown extrusion. The thermoplastic material is melted, emerges through a circular die, and a large bubble of air is blown inside. The volume of the bubble and the thickness of the extruded tube determine the thickness of the material. It stands vertically and the bubble, which may be many feet tall, allows the film to cool gradually. Often in the wind process the edges are slit off and rolls are slit width and wound in line as the film is extruded. This is a vertical process. The process is more complex than the one used to make cast stretch film, causing this type of wrap to become more expensive. Approximately 20-30% of stretch films manufactured today are blown. Blown stretch films are more opaque due to the fact that it tends to crystallize during the process. By using this type of stretch film, the visibility of your products will reduce.   Cast Stretch Films As the name of the films suggests, the process to produce is called cast extrusion. The first step requires the melting of thermoplastic material so it can go through a flat die. The melted resin goes onto a chill roll where the film becomes solid, similar to the cooling of plastic. Sometimes the film is thinned to the target gauge by winding the resulting film faster than it is extruded. This is a horizontal process. Cast stretch films make it easier to see through wrap, and the process is quieter. Cast stretch film can be used in pallet wrapping machines or you can also hand grade casts films.   Similarities Now that you know how stretch films are made, you may be asking what’s the difference between these films. But let’s begin with the similarities between cast and blown stretch film:   Both offer money saving pre stretch performance and effective load containment. Both handle a range of applications. Now let’s look at the differences between them.   Differences Blown Stretch film: Very resistant to puncture Higher levels of cling Make more noise unwinding Cloudy until stretch Bi directional tear resistance Excellent for C loads   Cast stretch films: Clearer and glossy Unwing quieter Resist Tear Propagation Great strength when using in pallet wrapping machines Forgiving Application I’m sure now you have a better idea of which one to use.   Consider these before buying any type of stretch films: shape, type and weight of your load, environmental considerations, what sort of transport and storage your product will experience, and what pre stretch percentage you expect. Remember stretch film will save you time and money, so look for the one that is best for you.  

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16 October
The History of Stretch Wrap

Not many of us know about the history of stretch wrap. In fact, stretch wrap is more important than you may think. Just imagine sending a pallet of boxed items without stretch film covering them. Although Stretch film is taken for granted most of the time, it is very important in solving many packaging and moving problems.   What exactly is stretch wrap film? Stretch film is a highly stretchable plastic film that it is used to protect items. The plastic film keeps the items together. Stretch film is usually used to divide pallet loads, but it is also used to tie smaller items. There are different types of stretch wrap, including: - Bundling Stretch film - Hand Stretch Film - Extended Core Stretch Film - Machine Stretch Film and - Static Dissipative Film   There are two methods of producing stretch wrap: Blown It is a slower process because the resin is melted and extruded through an annular die. The quality is higher as well as the cost.   Cast The process is quicker because the film is extruded through a slot die. The quality is not as good as blown but the cost is lower. When choosing stretch film, one need to look for important things like cling, clarity, tear resistance, static discharge, etc.   History of Stretch Film Stretch film is a new invention. With many companies claiming they are the inventors of stretch film, no one really knows the exact year of invention. Why has stretch film become such a high demand? In fact, many companies had used their own stretching film to secure pallets and to transport large groups of boxes. Stretch wrap then became more efficient than ever due to new materials and manufacturing process. In fact, one will be surprised how big the pallet wrap market is today. It all began in the 1960s, when supermarkets gained popularity over local shopkeepers. As manufacturers started transporting large loads to warehouses, they needed to use pallets to move the products quickly and safely. But companies also realized they were other benefits of using stretch film wrap to secure a pallet, such as wrapping products, protects them from dust, moisture and sunlight. Moreover, there is also another benefit of using stretch wrap film -- to act as a visual disguise for the products underneath, stopping tampering and theft. In 1972, people realized that stretch film secure loads, and that’s when more and more companies started using different types of stretch wrap. The first ones were made from Low Density Polyethylene (LDPE) and Polyvinyl Chloride (PVC). Even though PVC stretched more than LDPE, PVC was more likely to tear than LDPE. This was the main reason why companies decided to use LDPE rather than PVC. By late 1970s, a new type of stretch wrap was created, the Linear Low Density Polyethylene (LLDPE). This was a huge improvement because it could stretch more, and its durability had also been increased. With LLDPE, no matter what type of load you had, it was safe as long as it was handled properly. In the 1980s, there came another change. At this time triple layered film became the new standard. In the 1990s, it was increased to five layers. In the 2000s, the new standard was between seven and nine layers. Pallet stretch films have come a long way in the last decade. Most impressive of all, now we are seeing nanotechnology.   Nanotechnology What is Nanotechnology? It is the science that allows us the ability to manipulate individual atoms and molecules. Nano Stretch Film gives stretch film a plywood effect, which improves film performance. There are many benefits in using Nano Stretch Film, such as: - Less Cost at packaging - More efficiency - Transportation is more secure - Less damages - Environment friendly compared to non nano stretch films   As you can see, the technology used to create stretch film has improved in the last decade. Now we have different types of stretch wrap for different needs, ranging from the load size to the type of product you want to protect. And trust us, with nanotechnology, more and more advanced stretch film will be invented in the near future!  

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28 September
How to Choose the Right Stretch Film for Pallets

Using stretch film or stretch wrap is one of the safest, most efficient manners of moving pallets of products. Why? Because stretch wrap maintains the product right where you left it, no matter how you transport it. As you may already know, stretch wrap comes in many sizes, styles and thickness, and is not easy to determine which one to use for your products. It is a good idea to ask the stretch film manufacturer which one to use. Some of the benefits of using stretch wrap are: - It keeps items intact during storage and transportation- Provides a smooth surface to secure important information, such as, labels, instructions, product information, etc. As mentioned before, high performance stretch wrap film is available in many sizes. Smaller diameter rolls are great for small packages with low volume establishments. They measure between 2” and 5” in width. This type of stretch wrap is usually used with just one hand. High Performance stretch wrap film that rolls with widths ranging between 12” to 18” are often dispensed by hand. These widths are for short loads, or for loads which only the top or the bottom need to be wrapped. Larger stretch film rolls, 20” wide, are designed for use by pallet wrapping machines. This type of stretch films are more efficient wrapping and can reduce waste. Stretch film also has different thickness of the plastic film called gauge. The typical gauges for stretch wrap range from 63 to 80. The level of thickness determine how much the wrap can stretch without the risk of puncturing. Certainly lighter gauges are better for small, lighter loads and heavier gauges are for bigger, heavier loads. Consider the following before buying stretch film: - 30 Gauge for loads up to 800 pounds- 63 Gauge for loads up to 1300 pounds- 70 Gauge for loads up to 1600 pounds- 80 Gauge for loads up to 2200 pounds. This thickness of stretch wrap is the most common one.   How to Choose the Right Stretch Film There are five things to consider for choosing the right stretch film for pallets. 1. Load Size There are three types of load size:- Type A: This type of loads are the easiest loads to wrap. They have a uniform shape and they do not have puncture points. - Type B: This type of loads are not as uniform as Type A, and they have several film puncture points. Usually each pallet contains two to three products destined to the same location. The stretch film has to be a high performance stretch wrap. - Type C: This type of loads are a nightmare, no two loads are the same. The size and shape of the load range are all over the place. They have several puncture points and there is a difference between the load and the pallet size. The stretch film selection is very important.   2. Equipment To determine which type of stretch film to use you need to consider the type of equipment you are using. For example, you require a high performance stretch film if you are using fully automatic high speed stretch wrapper machine.   3. Product To select which stretch film type, gauge and the number of wraps you need, you have to determine the type of products you are wrapping. Consider the weight of the pallet load.   4. Special Needs You need to ask the client if they need a special requirement, such as a one side cling or UV colored stretch wrap. A one side cling is usually used when the pallet load shift in transit. And UV stretch film is used if the products will be store outside for long periods.   5. Shipping Finally, you need to consider the distance and method of shipment. It is not the same to transfer products across the country compared to across the street -- you will require a different stretch film. The distance and method of shipment are important considerations.   So here you go, the five main considerations for choosing the right stretch film for pallet. If you have any comment, or require further information, regarding stretch film, feel free to contact our friendly sales team.  

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28 September
High Performance Stretch Film

The purpose of high performance stretch film is to provide unitization, protection and containment properties to your pallet loads. Users are advisable to know how to do it right, or you could end up throwing money away. Wrapping your loads with stretch film is the last process on the production line, and is often overlooked. This can be an extremely costly mistake. Keep in mind that just throwing stretch film over a pallet does not make it safe for transport. If you think “Stretch film is just stretch film”, you may not be able to get all the benefits out of your stretch wrap. For example, a new technology stretch film, Nano 33 layer stretch film, is designed to improve tearing resistance with the possibility to reduce up to 50% on the consumption of plastic, and securing the cargo for transportation with excellent stability to ensure maximum safety. Make sure to discuss with your stretch film provider to learn more about it. To save and realize the huge potential of stretch film, users must understand the basic fundamentals of pre stretching the film and the terminology.   Banding Banding is when you apply multiple wraps of high performance stretch film to a certain area. This way your products are completely secure, and they find its destination in good condition.   Blown Stretch Wrap Beads of resin are fed through a heated machine that has a circular die. As this formed bubble finishes the process of being transformed into rolls of stretch film, it is cooled down by the surrounding air. This type of stretch film costs more, and is tougher than cast films.   Cast Stretch Wrap Cast film is usually quieter, more transparent, and glossier than blown film because of this process. High performance stretch film is typically tear resistance.   Cling A bonding agent added to stretch film to increase the stickiness quality of the film. Depending on the desired effect, the bonding agent is applied to one or both sides.   Pre-Stretch Pre-Stretch film is the process that permits stretch wrap to be stretched before being applied to a load. Your wrap stretch machine should be pre-stretching the stretch film. Benefits - Strength: The stretch film is so much stronger once you pass the point of permanent deformation. - Memory: The more you stretch the wrap, less memory it has. For example, if the stretch film is applied to a load without pre stretching, you can see that the film has tightened due to the film elastic memory as it tries to return. - Lower Cost: The cost of stretch film is reduced compared to wrapping a load with no pre-stretch film. For example, it is much cheaper to do it this way instead of hand wrapping.   Post-Stretch Post stretch is the stretch in the wrap created by the film tension between the film carriage and the load being wrapped. It maximizes the load retention. In the downside if the tension stretch is concentrated on the corners of a load, it can be damaged if set too high. In addition, users should be very cautious pulling the layers apart as they use the load to create the tension. Finally, this type of stretching may not be suitable to wrap every type of products, for example P.E.T bottles.   Film Force Film force, also known as film tension, is the tension created in the film. This tension is due to the the films attempting to return to its original state after been stretched. This is why it’s so important to pre-stretch the high performance stretch film.   Film Feed It is the ability to provide the film required to wrap a load while keeping the tension of the film constant.   How to Choose Stretch Film Consider these important criteria before buying high performance stretch films: - Storage Location: if you need high performance stretch film with UV protection- Product: Value, size- Load weight- Tear and puncture resistance- Pattern: stacking- Production speed- Cling- Optics- Consistency: thickness- Noise- Pallet wrapping machine- Cost- Load profile- Height- Transport distance: this include which method you will use to transport your load- Labeling- Bar Code- Gloss- Noise Make sure any stretch film that you buy meets all other requirements and criteria you may have in order to ensure customer satisfaction.  

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