What you need to know to make worldclass stretch film. Jul 10, 2019 stretch film converting can also produce pre stretch stretch film. The ecocompact is particularly wellsuited to mediumscale production runs. Xinhuida provides a whole journey stretch film production solution to various plastic product manufacturers and trading companies. In the personal hygiene sector we are the specialist of choice for improving pallet stability through the efficient use of stretch film. Limited production speed dependant on the operator. The uk market for stretch film in pallet stabilisation is estimated at 140,000. The elastic recovery keeps the items tightly bound. Blown stretch film a stretch film derived from the blown extrusion process that has a higher puncture resistance. Material is important for these films because it affects the elasticity for stretch wrap films and how much a film will shrink. Our team believed in offering useful information about what is the film products, how to do packaging process, how it work with packing machinery. This is a slower process but provides for higher quality in all the areas listed below. By providing realtime information about material properties, it offers a quick and costeffective alternative to. The plastic keeps the food fresh by protecting it from air and by preventing dry foods from absorbing moisture and wet foods from losing moisture.
Stretch film converting can also produce prestretch stretch film. How plastic wrap is made material, manufacture, making. It is frequently used to unitize pallet loads but also may be used for bundling smaller items. Lldpe cast stretch film with high resistance to perforation and tearing for use on automatic machines without prestretch group. Stretch film production process china manufacturers. Achieving cling in stretch film has been an evolutionary process that. Cast film represents the other 7080% of stretch film manufacturing according to general industry estimates. Process for the production of stretch film sabic global. Visit the stretch film info page to view detailed info about cast stretch film. Cast stretch film also called cast film or cast wrap, is manufactured using the cast extrusion process.
Deriblok the leading stretch film company cast film. Stretch film is generally used for palletizing, or unitizing multiple items on a pallet to keep them from shifting during shipment. Castfilm lines are being engineered to allow production of thinner films at higherthan. The provided rolls are manufactured at our advanced production unit under the vigilance of our experienced professionals using highquality raw materials. The line, which is expected to be delivered by the first half of next year, will. The four sections in the mdo machine and process are the preheat section. To create stable and secure pallets we assess the customers entire packaging process. Another popular product produced with stretch film conversion is pre stretch stretch film. The actual manufacturing process of stretch film is called extrusion. Cast stretch film a stretch film derived from the cast extrusion process. How many different kinds of stretch film are there. The dynamics of the stretch film market are continuously evolving. Lldpe stretch wrap cast film production in action youtube. Along with its toughness, you can significantly reduce the raw materials required per wrap.
Xin hui da, stretch film machinery advanced technology leader, based on the application of development and technology research, focus on industry, focus on industry solutions more customers choose to use xin hui of the production from different regions have different needs, but are in the same the way to express the love of xin hui of products. It allows a quicker extrusion process than blown extrusion, therefore making a less expensive stretch film. The average gauge of hand wrap has gone from 25 microns to 10 microns and the average gauge for machine wrap and power pre stretch has gone from 35 to 15. Our opinion is that the cast process generally produces a stretch film with characteristics superior to that of a stretch film made by a blown process. Stretch film unit rewinding unit recycling unit auxiliary equipment advantage independent innovation professional quality strength of the industry to create a model international strategy case shanghai qunlong packaging materials co. Morris, in the science and technology of flexible packaging, 2017. Data from the fpm is recorded continuously during production and each roll is given.
The complete guide to shrink film industrial packaging. Due to the companys specific focus and expertise, no. While a great deal of attention is directed toward the manufacturing and production of a product, there are numerous improvements that can be made within its packaging as well. Stretch film usually stretches about 100300%, whereas shrink film will typically only stretch to around 5075% before breakage occurs. Types of stretch film include bundling stretch film, hand. During the conversion process of a pre stretch stretch film, stretch film is pulled from the master roll and stretched up to 90% of available stretchability and placed on a smaller roll.
This machine gives our customers efficient stretch film production capability with a film width of 2m and an output rate of up to 1,600 kgh. Deribloks cast stretch film is the fruit of high technology, whose ultramodern production process, enables four different layers of material to merge during the extrusion process. Between 1985 and 90, demand grew from 250 million lbyr to 500 million lb, and from 1990 to 95 it swelled to 1 billion lb. Executive summary 1 industry overview of stretch film 1. Stretch films production stretch films can be produced by a blown or cast film extrusion process.
Stretch film bopp film pvc film stretch hood film vci. Stretch wrap or stretch film is a highly stretchable plastic film that is wrapped around items. We are engaged in manufacturing, exporting and supplying a wide range of stretch film rolls to our valued clients. Casting of film provides more uniform gauge, better cling, and greater percentages of stretch than blown film. It can happen that the speed of a production process is so high that a thicker stretch film is chosen, which means fewer wraps and a faster flow of pallets. Which stretch film should you choose for your business. Shrink wrap and stretch films selection guide engineering360. The film must be heated and cooled again for the stretching process. The higher production speed induces instability in the process, such as breaking of the film. If it is very high, then the choice for the thicker stretch film might be more obvious. In 2009, 66000 tons of prestretched film were produced68% hand wrap, 32% machine warp.
Click on the stretch film info page to view detailed information about blown stretch film. Convenience of packaging with the use of stretch film lies not only in reliability and speed of packaging process, but also in possibility to monitor the condition of. Over time this stretch wrap has become more expensive because it is thicker and uses more petroleumbased resins during the manufacturing process. By providing realtime information about material properties, it offers a quick and costeffective alternative to elaborate and timeconsuming laboratory tests. This gap is usually less than 3 mm and sometimes less than 1 mm. Developments in resins and film production methods offer the opportunity to light. In contrast, shrink wrap is applied loosely around an item and shrinks tightly with heat. During the conversion process of a prestretch stretch film, stretch film is pulled from the master roll and stretched up to 90% of available stretchability and placed on a smaller roll. That gauged film is made from a cast extrusion procedure that uses rollers to awesome the film because it is extruded. It is an object of the present invention to provide a process for the production of a stretch film in which abovementioned andor other. In europe, the actual trend and production forecast foreshadows that the futures of the market is focusing on prestretch and coreless film. Another popular product produced with stretch film conversion is prestretch stretch film.
Stretch films are made from linear lowdensity polyethylene resins. In 2006, prestructured film consumption in europe was roughly 22000 tons. Machine direction orientation an overview sciencedirect. Cast film lines are being engineered to allow production of thinner films at higherthan. The typical production speed of the stretch film of 500 mmin has been increased to 600 mmin or even 700 mmin. To find out how you can streamline your packaging process and learn about cost savings opportunities, contact one of our highly qualified packaging specialists. Stretchfilm processors were used to a market that doubled every five years.
Stretch film stretch wrap film latest price, manufacturers. Veritiv packaging specialists can help you optimize your stretch wrapping process. So our vision is to offer 24hour information service on website introducing the knowledge of stretch film, pe film, stretch hood film, bopp film in packaging. Tufflex machine film quality machine film engineered for the widest range of stretch wrapping applications. Tackifiers are added to film during the manufacturing process to enhance a films.
In this article, were going to be focusing on the automation of stretch film in comparison to wrapping pallets by hand. Less manufacturing costs allow cast stretch film to be the more widely used stretch film. Castfilm lines are being engineered to allow production of thinner films. Sep 25, 2015 in august, sigma stretch film, lyndhurst, n. Inline measuring and control of film thickness distribution across its width is the function of the gauge control system or apc automatic profile control. Bottom wrapsthe wraps a stretch wrap machine uses to apply film to the bottom section of the load.
This is a horizontal process as shown in the schematic. Pe stretch film plastics film packaging film supplier. Dornier film stretching lines are mostly used to manufacture polyester and polypropylene films, but also for stretching polyamide, polystyrene, pvc, crosslinked polyethylene, pen and other thermoplastic materials. The amount of stretch is typically characterized by a stretch ratio. The robust demand for ecofriendly stretch film products especially nano 6 film and others thin gauge films ranging from 8 micron to 12 micron thickness has encouraged scientex to expand its production capacity not only at its malaysia plant at west port, port klang but. Blown stretch wrapalso referred to as blown stretch wrap, is manufactured using the blown extrusion process. Lldpe stretch wrapping cast film production at the china factory of union grade limited. This process allows the cast stretch film to have excellent clarity, require less force to stretch, increased tear resistance, unwind quietly from machines, and offer a. As a result of the utilization of stretch film, the dairy producers production line became less congested, improving production volumes by 100%. Pallet stretch packaging exxonmobil chemical performance polymers protect and preserve products with extremely damageresistant stretch packaging films that can withstand the most demanding stresses, helping brand owners protect their goods through the value chain. The robust demand for ecofriendly stretch film products especially nano 6 film and others thin gauge films ranging from 8 micron to 12 micron thickness has encouraged scientex to expand its production capacity not only at its malaysia plant at west port, port klang but also its new overseas plant at phoenix, arizona, usa. In europe, the actual trend and production forecast foreshadows that the futures of the market is focusing on pre stretch and coreless film. Stretch film market 2020 industry size, share, growth. Sure, there are commonalities, but theres a lot of detail that film experts and local reps consider when suggesting the optimal stretch film for an application.
The cost of production is also higher due to the quantity that can be produced per hour. Packaging automation processes automation of stretch film. Oct 04, 2018 the typical production speed of the stretch film of 500 mmin has been increased to 600 mmin or even 700 mmin. Manufacturers of extrusion equipment have followed. Fundamentals of cast film extrusion technologymacro. True gauged stretch film for years, companies have used true gauged stretcfilm, a product that offers an enormous amount of stretch, cling, and strength. Cling allows the film to stick to itself and not the product. By using the professional high technology and informatization method to provide a whole journey professional product and service which covers the presale, sale and aftersale. Through the chillroll process, it is possible to obtain a real one side cling product with top grade mechanical properties due to the instant cooling of the.
Plastic wrap is a form of food packaging consisting of a thin film of flexible, transparent polymer that clings to itself and to food containers to form a tight seal. Even as recently as five years ago when fivelayer stretch film swept the. Worldwide, the big trends and drivers in cast stretch are. The highly interesting television show how its made has created an interest in learning more about how everyday items are made. This allows us to identify many other factors that play a role in choosing the right type of stretch film. Exploring the different types of stretch film industrial packaging. A method of making a plastics stretch film includes the steps of taking cast or blown film of lldpe at a temperature of between 50 c. By using the professional high technology and informatization method to provide a whole journey professional product. It has shown audiences that there is a lot that goes into making things that are easily taken for granted, and that is perhaps what makes the show so fascinating. Stretch film plastic bags and film production king. Cast stretch films processing equipment battenfeld gloucesters complete extrusion systems guarantee high quality melt feeding the. An interesting technology to produced films with unique properties is discussed by parkinson technologies on its website 9 where the use is highlighted of a patented compression roll drawing crd process which involves the simultaneous compression and machine direction orientation mdo of.