15 October
Frequently Asked Questions (FAQ) of PVC Food Wrap

PVC Food Wrap is a thin plastic film that is mostly used to seal and secure food items in containers. Once the food items are sealed, they can stay fresh for a longer time. You can buy PVC food wrap in individual rolls or a box with a cutting edge on it.    Plastic wrap is traditionally made of Polyvinylidene Chloride, but today there are other options that have become very popular. One popular alternative to PVC food wrap is the one made of Low-Density Polyethylene (LDPE), although it has a downside, which is a poor amount of cling.  Polyvinyl chloride (PVC) food wrap is commonly used for: • Catering• Wrap fruits, vegetable, cheese, and sandwiches• Cooked meats, etc.  Do you wish to find out more about PVC food wrap? Read on.  Frequently Asked Questions  1. Why is food wrapped in plastic? PVC Food wrap is used to wrap food as it clings to itself and to food containers to form a tight seal. Stretch film maintains the freshness of the food by preventing air from coming in. It also keeps moisture away from dry foods and protects wet foods from losing moisture. Another benefit of using stretch film is to seal in the odour and keep it from extending over to other foods stored nearby.    2. Is it safe to wrap food in plastic wrap? Yes, it is safe.  No evidence suggests that PVC food wrap is harmful, but it is a good idea to keep the wrap at least 2 centimetres from food items.    3. How thick is plastic wrap? Most plastic wraps are 35 - 40 gauge.    4. What is the difference between PVC food film and Non-PVC food wrap? Stretch film was first made from Polyvinylidene Chloride (also known as PVC), the most common material. Non-PVC food wrap is mostly made from Low-Density Polyethylene. The main difference between both of them is that PVC food wrap is a cling film while Non-PVC is not.    5. Can PVC food wrap be used in the microwave? Yes, but it is a good idea to poke holes for steam ventilation. Moreover, the stretch film mustn't come into contact with food high in fat. You should know that fat can melt plastic wrap if heated to a high temperature.    6. What stretch film size should I use? The size of the stretch wrap is determined by your needs as there are different thickness and widths for all types of applications.    7. Can PVC food wrap be used in the freezer? Yes, it can be used to freeze foods. The best way to wrap food for the freezer is to do it tightly, and make sure to leave out any excess air. By removing all the air, you can prevent freezer burn.    8. Can I use plastic wrap in the oven? No, plastic wrap should not be used in: • Ovens• Stovetops• Toaster ovens The PVC food wrap will melt if used in any of the above cooking items.    9. Can Plastic wrap be heated? As mentioned, the stretch film cannot be heated in the oven or with other forms of direct heat. Remember that plastic wrap can melt when heated.    10. Is PVC food wrap environmentally friendly? PVC food wrap manufacturers, such as Thong Guan takes priority in keeping the Earth as clean as possible. The polyethylene films we produce are safe for the environment. Why is PVC food wrap environmentally friendly? • Recyclable • Does not contain or produce any toxic or hazardous by-products• Provides sanitation• Long-lasting, so there is no wastage• Using PVC food wrap reduces the growth of mold, algae or infections by pests and rodents.    11. Is plastic wrap a good insulator? Plastic wrap has many benefits but unfortunately it’s not a good insulator. It may help with heat retention, but aluminum foil is a better insulator. The best way to use plastic wrap as an insulator is to use two layers with air in between.    Takeaway Food wrap is a thin plastic film that is mostly used to seal food items in containers to keep them fresh for a longer time. It is also used for storage and transportation.  PVC food wrap clings to many smooth surfaces without adhesive. This is one of the main benefits of using Polyvinylidene Chloride instead of NON-PVC food wraps.  Remember the most important role of PVC food wrap is protection and preservation so it is great for catering, restaurants and even supermarkets as it protects the food from moisture, light, insects, and animals.  Last but not least, remember when you use PVC food wrap, you are also reducing food waste and saving the environment.    

More

03 October
Plastic Food Packaging Symbols and What They Mean

Plastic Numbers: What Do They Mean? Plastic packaging containers have a number (1 to 7) on the bottom or side that gives the identification code of the resin. This code is also known as the recycling number. The purpose of this resin identification code is to give a guide to consumers who want to recycle plastic containers.  Check out a list of the most common plastics used in food packaging. All of these plastics have been approved by the FDA to be in contact with food.    PETE or PET (Recycling number 1 / Resin ID Code 1) Polyethylene terephthalate also known as PETE or PET is a thin plastic that is made to be semi-rigid or rigid to be more impact resistant. This type of plastic is great to protect food or liquids inside the packaging.  PET uses: - Soft and sport drinks- Single-serve water- Ketchup- Salad dressing- Vegetable oil bottles- Peanut butter containers   HDPE (Recycling number 2 / Resin ID Code 2) High-density polyethylene, also known as HDPE is a hard, opaque plastic that is thin but at the same time strong. This plastic can be recycled.   HDPE uses:  - Juice and milk jugs- Squeeze butter- Vinegar bottles- Chocolate syrup containers- Grocery bags   PVC (Recycling number 3 / Resin ID Code 3) Polyvinyl chloride, also known as PVC is a common type of plastic that is biologically and chemically resistant. With these two characteristics, PVC containers are a great option to maintain the integrity of the products inside. PVC plastic is recycled. PVC uses: - Tamper-resistant over-the-counter medication- Stretch film - Vinyl is also used in blister packaging   PVC Food Wrap PVC food wrap is the thin clear plastic that is used to keep your food safe for storage and transportation. This type of plastic is commonly used for catering, to wrap food such as fruits, vegetables, sandwiches, cheese, and cooked meats.    LDPE (Recycling number 4 / Resin ID Code 4) Low-density polyethylene (LDPE) is thinner and it is also flexible in high heat temperatures.  You should check with your recycling centre if LDPE can be recycled in your area.  LDPE is tough and flexible so it is mostly used in stretch film applications. LDPE uses: - Coffee can lids- Bread bags- Six-pack soda can rings- Fruit and vegetable bags used in grocery stores.    PP (Recycling number 5 / Resin ID Code 5) Polypropylene, also known as PP can be made translucent and opaque. As it can endure high temperatures, it can be used for food packaging products that are used in microwaves or cleaned in dishwashers. PP can be recycled.  PP uses: - Yogurt containers- Sour cream containers- Prescription drug bottles   PS (Recycling number 6 / Resin ID Code 6) Polystyrene, also known as PS is a hard plastic that has no colour and not much flexibility. This type of plastic can be made into foam or cast into molds. It can also be recycled.  PS uses: - Plastic cups- Deli and bakery trays- Fast food containers and lids- Hot cups- Egg cartons- Plastic cutlery   Other or O (Recycling number 7 / Resin ID Code 7) When you see in a food container ‘other or a #7 symbol’, it means that it is made with another type of plastic resin different from the other six types listed above.  For example, food packaging can be made with polycarbonate or bioplastic polylactide or with more than one plastic resin.  This type of plastic can be recycled. Uses: - Water cooler five-gallon jugs- Some citrus juice bottles- Ketchup bottles- Cups- Coffee lids- Clamshell containers    In a Nutshell  Plastic food packaging provides protection, tampering resistance, and it is great for storage and transportation. They have features that add convenience for stacking, display, use, reuse and recycle. Of course, one of the best ways to protect the environment is by recycling. Save Earth, Save Life!         

More

26 July
The Latest Market Analysis for Stretch Film Packs

With rapid growth in the retail industry, especially e-commerce, it is more important than ever to make sure the products are delivered in perfect condition. One of the best solutions for your packaging requirements is the use of stretch film packs. Stretch film packs consist of a corrugated pad to which stretched plastic wraps are fixed. It possesses several unique characteristics such as: - Lightweight- Easy Moulding - Clarity- High transparency - Great tear and puncture resistance- Visual product identification- Great strength and durability- Cost-Effective The wrap film stretches all over the product, providing the tension to securely keep together the products in place. Stretch films protect the product from the weather and dust. It is used to tighten and unitize loads. High-performance stretch film has many uses, but the most common one is to tighten multiple products together to transport them safely. It is very flexible so it’s easy to pack multiple products at once.   The Stretch wrap is used in almost any industry including food, beverages, healthcare, electronics, and many more.    Types of Stretch Films Hand Stretch Wrap It is designed to be applied by hand. It is often used to pack small loads.      Cast Stretch Film Cast Stretch Films just as the name implies is manufactured using a process called cast extrusion. With this process, the stretch film has superior transparency so that delivered products can be seen through the plastic.    Blown Stretch Films This type of stretch film is manufactured using a process called blown extrusion. The stretch wrap is more durable, and it is extremely resilient and resistant to tears and punctures. The blown stretch film is the perfect film to be used in heavy loads.    Stretch Film Market Many factors are said to have increased the market growth of stretch wrap packs, including: - Industrialization- Stretch film manufacturing has increased the efficiency - Retail sales have grown in the past years with the expansion of e-commerce - The food and beverage industry has grown rapidly, increasing the use of stretch films More and more industries are using stretch film because it is not easily punctured, making it great for transportation; plus they are cost-effective.  As mentioned, stretch film packs are cost-effective because it reduces the packaging volume by using less film, helping manufacturers to save money and time.  Stretch film packs are the perfect solution for product display, and they are easy to use. This enables users to pack multiple products together at once, reducing costs and increasing productivity at the same time. Another reason why so many manufacturers are using stretch film packs is that they protect the product during transportation from the dust and weather. The increased use of stretch wrap is also partly due to the reduction in the prices of raw materials and cheaper crude oil.  Although there is much good news for the stretch film market, other factors such as new regulations of plastic use too can slow down the growth. Stretch film packs can be classified depending on the type of materials, the use and applications in the industries. The most common types of stretch film materials are Polyethylene (PE) and Propylene. In addition, the stretch film markets have also been segmented by regions. The 5 regions are: 1) North America2) Europe3) Asia Pacific4) The Middle East and Africa (MEA)5) Latin America The market share of stretch film packs is dominated by North America, followed by Western Europe. This is mainly because of the increasing demand for e-commerce and shipping in the region.   Takeaway Stretch film packs are the best solution for your packaging needs. They provide security and clarity so your products are protected from damage, moist, dirt and dust.  The main purpose of high-performance stretch film is to secure the product during transportation. They will save you money and help you with your inventory control.   

More

01 July
4 Types of Common Stretch Wrappers on the Market

  The main purpose of a pallet wrapping machine is to prepare the load for shipment. All the stretch wrapper do is apply stretch film to a pallet load of items. There are different types of stretch wrappers on the markets. Some machines rotate the load on a turntable while others rotate an arm around the load. The most difficult thing is to get the right amount of pallet stretch film with the right amount of tension, spread everywhere on the load. This process can be more complicated than you may think.  It’s very important users get the right amount of containment force everywhere on the load to minimize waste on time and money. Loads need to be stretch wrapped effectively to avoid any unnecessary risks of falling apart during shipment.  Companies should find the right machine for their application. In fact, choices are aplenty.  Here are the four types of common stretch wrappers on the market. Users just need to choose the one according to their needs.   Hand Wrappers Today, many companies are still using hand wrapping, which is less efficient but effective for pallet wrapping. Hand wrapping usually involves one or two people with a wrapping gun, who walk around the pallet or rotate it on a carousel, and dispense the stretch film over the items.  Hand wrapping is an intensive labor activity and there is a high risk of injury. Besides, it requires more time, effort and cost than using pallet wrapping machines.  Other downside include containment force. In general, hand wrapping is not consistent and is a hard and tedious work.    Automatic versus Semi-Automatic Stretch Wrappers It’s recommended to understand the difference between automatic and semi-automatic stretch wrappers machines.  Automatic Stretch Wrappers take the first pallet of the line, and automatically move it into the wrap zone where the item is wrapped according to the settings. Once the item is wrapped and finished, it is moved to the end of line while a new pallet is moved into the wrap zone. A semi-automatic stretch wrapper machine requires a person to load and unload the machine. To start the wrap cycle, this person is also in charge of doing appropriate adjustments to make sure the load is wrapped effectively.    Turntable Wrappers The most simple form to wrap, is to place the pallet on a turntable that rotates while a pallet stretch film is delivered around the load.  This system started at the bottom of the load, wraps it to the top, and then wraps back down to the bottom.  Turntable wrappers are very effective in many types of works, and they are used for a wide variety of applications. They are the most prevalent type of stretch wrappers.    Straddle Wrappers With straddle wrapper machines, the load remains steady while stretch film is delivered around the load. This type of machines are great for unstable, light and heavy loads; they can also wrap from low to high volume.    Ringer or Orbital Wrappers Ringer or orbital wrappers wrap a pallet over and under. In here, the load move on a conveyor through the machine. This type of wrapper machines are mostly used for flattened or unwieldy loads, like doors, pipes, carpet rolls, coffins, etc.   Ring Straddle Wrappers If you want speed, this type of wrapper machine is what you need as it can handle up to 200 loads per hour. Industries such as, tissue, paper towel, and beverage use Ring Straddle Wrapper Machines.  This type of machines are highly specialized and not many companies are using them.    Choose the One For Your Needs As you can see, these four types of stretch wrapper machines have different features that expand their use, capabilities and flexibility. To find the right pallet wrapping machine, remember to consider the following: size of load, stability and weight of load, speed, savings and results.  If you have more questions regarding the types of stretch wrappers, please feel free to contact us at https://www.thongguan.com/contact-us   

More

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.        

More

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   

More

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.   

More

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.   

More

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  

More

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?  

More