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Your Position: Home - Apparel - Troubleshooting the 11 Most Common Film Related Problems with a ...

Troubleshooting the 11 Most Common Film Related Problems with a ...

Author: Geym

Jun. 09, 2025

Apparel

Troubleshooting the 11 Most Common Film Related Problems with a ...


Information for almost any subject imaginable is available instantaneously. All you have to do is get out your , tablet or laptop, type in a word or question, and Voila! Instant feedback. In the packaging industry, people who have questions regarding troubleshooting issues with their VFFS machine can find the answer immediately…or can they? Sadly, with only a few exceptions, this is one area in which the Vertical Form Fill Seal machine has limited helpful online data, especially when it comes to troubleshooting mechanical issues in the field (which have a tendency to occur in the middle of third shift, am I right?)

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Picture yourself managing operations, business flow or operating a VFFS and noticing that the film is not tracking properly. Wouldn’t it be easier, especially in this fast-paced world of online efficiency, to perform a quick online search of “Why is my film not tracking on VFFS?” Wouldn’t it then be frustrating to only get ads, websites or pamphlets that offer no immediate knowledge or solution?

No one likes unplanned downtime. It wastes resources, time, and money. Expeditiously finding the source of your workflow disruption prevents excessive downtime, disrupted production, and frustration! Although we love to hear from our customers and help out with any and all questions, that is not always the quickest, most convenient route for the operator or plant manager.

So, let’s begin to remedy the gap in available online information by looking at some mechanical issues regarding the most common area of concern with the VFFS – film. Allen Overmyer, using past and present knowledge of Rovema machines has provided decades of insight.

The 11 dilemmas we're looking to solve in this vffs troubleshooting article:

  1. Film runs off-center
  2. Film will not track
  3. Film feed belts will not move
  4. Bag Length is inconsistent
  5. Bag Length is too long
  6. Creases in film
  7. Film Unwind is Difficult
  8. Pulling film down the forming tube is difficult
  9. Film jams at the forming tube
  10. Film feed belts are slipping
  11. Film is Sticking to the Vertical Seal

Dilemma #1: Film runs off-center

Troubleshoot:

  • Roll of film is not centered on the film carriage or the spindle
  • Film roll is improperly wound
  • Film roll is loose on the spindle
  • Belts are misaligned to the tube

Dilemma #2: Film will not track

Troubleshoot:

  • The roll is not centered on spindle.
  • Spindle is loose
  • Film is not properly threaded on carriage

Dilemma #3: Film feed belts will not move

Troubleshoot:

  • Check to see if belts are too tight against tube
  • Check the film drive gear boxes and couplings
  • Check the cables and drive for the film feed motor
  • Check the bearings in the belt drive shaft

Dilemma #4: Bag Length is Inconsistent

Troubleshoot:

  • Film is not threaded properly
  • Film feed belt tension is improperly adjusted
  • Film feed belts need to be cleaned

Dilemma #5: Bag Length is too long

Troubleshoot:

  • Bag length is incorrectly set
  • Reset bag length in control display
  • Registration photo eye is not set correctly

Dilemma #6: Creases in film

Troubleshoot:

  • Forming collar is worn out
  • Forming collar is improperly adjusted
  • Setup roller is improperly adjusted
  • Valve is stuck on the forming collar, or rollers
  • Contaminated roller in the film path
  • Obstruction on the forming collar from printer

Dilemma #7: Film Unwind is Difficult

Troubleshoot:

  • Forming part is dirty
  • Film co-efficient of friction is too high
  • Check guide rollers for foreign materials and free movement
  • Zipper caught in collar
  • Contact pressure of the belts too high
  • Forming tube out of alignment

Dilemma #8: Pulling film down the forming tube is difficult

Troubleshoot:

  • Forming set is dirty
  • Film co-efficient of friction is too high
  • Splice tape is caught in the collar
  • Check the guide rollers for foreign materials and free movement
  • Forming collar is not aligned properly to the tube
  • Contact pressure of the belts is too high
  • Setup rollers are out of alignment

Dilemma #9: Film jams at the forming tube

Troubleshoot:

  • Vertical seal too hot, causing film to stick
  • Too much pressure on the vertical seal band
  • Film co-efficient of friction is too high
  • If producing a stabilo bag, the seal is misaligned or too hot

Dilemma #10: Film feed belts are slipping

Troubleshoot:

  • Not enough pressure on the film feed belts
  • Belts are dirty
  • Belts are worn
  • Belts are misaligned to the tube
  • Vacuum filter, or hoses, are clogged.
  • Vacuum is turned off
  • Film is not properly threaded

Dilemma #11: Film is Sticking to the Vertical Seal 

Troubleshoot:

  • Heat is too high
  • Too much pressure
  • Vertical seal  or cross sealing jaws need cleaning
  • Film is misaligned to expose the sealant material inside the bag to the heated seal band

Another consideration to contemplate is that a change in film structure, even if it is reported as having the same characteristics, can cause difficulty with running the machine after a roll change. Communication of a change to operators can help prevent confusion.

Many of the areas mentioned require a tweak, cleaning or small change of parts, however, if you don’t know what is causing the problem, how will you be able to efficiently resolve it? We would like to see that information readily available and easy to find for those who need it through the use of Tech Notes, articles and blogs. How would you like to see this information shared and what is important for you to know about troubleshooting your VFFS machine and the rest of your packaging line?

Heat Sealable PET Film - Overview: Trends, Competitor ...

Key Insights

The global heat sealable PET film market is experiencing robust growth, driven by increasing demand across diverse sectors. While precise figures for market size and CAGR aren't provided, a reasonable estimation based on industry trends suggests a market size exceeding $2 billion in , exhibiting a compound annual growth rate (CAGR) in the range of 6-8% during the forecast period (-). This expansion is fueled by several key factors. The medical industry's reliance on sterile packaging, the automotive sector's use in interior components and electronics protection, and the burgeoning aerospace industry requiring lightweight, durable materials all contribute significantly to market growth. Furthermore, advancements in film technology, leading to improved heat sealability, strength, and barrier properties, are stimulating adoption across applications. The increasing demand for flexible packaging in the food and beverage industry, along with the growth of e-commerce and the need for enhanced product protection, further support market expansion. Segmentation by thickness (below 30mm, 30-50mm, above 50mm) reflects varied application requirements, offering opportunities for specialized film manufacturers. Key players such as Mitsubishi Polyester Film GmbH, DuPont, and Cosmo Films are driving innovation and market penetration.

However, the market faces some challenges. Fluctuations in raw material prices, particularly PET resin, can impact profitability. Furthermore, the development and adoption of alternative sustainable packaging solutions might pose a long-term constraint. Nevertheless, the ongoing demand for high-performance, cost-effective packaging solutions across various industries should ensure continued market growth. Regional analysis reveals strong demand from Asia Pacific and North America, driven by manufacturing hubs and growing consumerism. The European market also shows substantial growth potential, driven by stringent regulatory standards and an increasing focus on sustainable packaging. The long-term forecast anticipates consistent growth, driven by technological advancements and diverse application expansion across sectors.

Heat Sealable PET Film Concentration & Characteristics

The global heat sealable PET film market is a moderately concentrated industry, with a few major players holding significant market share. Production volumes are estimated to be in the range of 3-4 million metric tons annually. Mitsubishi Polyester Film GmbH, DuPont, and Polyplex Corporation are among the leading players, collectively accounting for an estimated 30-35% of global production. However, a significant number of smaller regional players, particularly in Asia, contribute to the overall market volume.

Concentration Areas: Asia (particularly China and India) accounts for the largest share of production and consumption. Europe and North America follow, though with comparatively lower production volumes.

GT New Material contains other products and information you need, so please check it out.

Characteristics of Innovation: Recent innovations focus on improving heat sealability at lower temperatures, enhancing barrier properties (e.g., against oxygen and moisture), and increasing the film's strength and durability. Bio-based and recyclable PET films are gaining traction, driven by sustainability concerns. The industry is also witnessing advancements in surface treatments for improved printability and adhesion.

Impact of Regulations: Stringent regulations regarding food safety and recyclability are driving the adoption of compliant PET films. This necessitates investments in advanced manufacturing technologies and quality control measures.

Product Substitutes: Alternatives include other types of polyester films, as well as films made from alternative materials like polyvinyl chloride (PVC) or polyethylene terephthalate glycol (PETG). However, PET films retain a competitive edge due to their cost-effectiveness and recyclability potential.

End User Concentration: The medical, automotive, and food packaging industries are the key end-use sectors driving demand for heat-sealable PET films. The medical industry's demand for sterile packaging, in particular, has propelled considerable growth.

Level of M&A: The industry has witnessed a moderate level of mergers and acquisitions in recent years, primarily focused on expanding geographic reach and product portfolios. Consolidation is anticipated to continue as companies seek to achieve economies of scale and gain access to new technologies.

Heat Sealable PET Film Product Insights

Heat sealable PET films are characterized by their excellent clarity, strength, and heat sealability, making them suitable for a wide range of applications. They offer a superior barrier against moisture and gases compared to other flexible packaging materials, ensuring product freshness and extending shelf life. The films can be easily printed upon, allowing for customized branding and informative labeling. Moreover, advances in technology have resulted in thinner films with enhanced performance, leading to cost savings and reduced material usage. The growing demand for sustainable packaging solutions is further driving the development of recyclable and biodegradable PET film alternatives.

Report Coverage & Deliverables

This report provides a comprehensive analysis of the global heat sealable PET film market, segmented by application, type, and region.

Application:

  • Medical Industry: This segment represents a significant portion of the market, driven by the growing demand for sterile packaging for medical devices and pharmaceuticals. The need for reliable and tamper-evident packaging is a key factor in this segment's growth.

  • Automobile Industry: Heat sealable PET films are used in the automotive sector for various applications, such as interior components and protective films. The segment is characterized by high quality requirements and resistance to harsh environmental conditions.

  • Aerospace: This niche segment demands specialized heat-sealable PET films with exceptional strength and resistance to extreme temperatures and pressures. The applications are often highly specialized and critical for safety.

  • Chemical Industry: This segment utilizes heat-sealable PET films for packaging chemicals and industrial fluids, requiring high barrier properties and chemical resistance.

  • Other: This segment encompasses diverse applications, including food packaging, consumer goods, and industrial packaging, contributing significantly to the overall market volume.

Type:

  • Below 30 mm: This segment represents a high-volume application, catering primarily to various packaging demands.

  • 30 - 50 mm: This mid-range size finds use in applications requiring moderate strength and flexibility.

  • Above 50 mm: This segment caters to specialized applications where high strength and durability are essential.

Heat Sealable PET Film Regional Insights

Asia-Pacific dominates the global heat sealable PET film market, driven by the region's strong economic growth, increasing demand for packaged goods, and a large manufacturing base. North America and Europe follow, with established markets and a focus on high-quality, specialized films. Other regions, including South America, the Middle East, and Africa, are expected to witness moderate growth, driven by increasing industrialization and rising consumer spending.

Heat Sealable PET Film Trends

Several key trends are shaping the heat sealable PET film market. The increasing demand for sustainable and eco-friendly packaging is driving the adoption of recyclable and biodegradable PET films. Furthermore, advancements in film technology are enabling thinner and more efficient films with improved barrier properties and heat-sealability. The trend toward lightweighting in various industries is creating demand for films that offer both strength and reduced material usage. The rising adoption of advanced packaging technologies, such as modified atmosphere packaging (MAP) and vacuum packaging, is further boosting demand. Finally, the growing trend towards e-commerce and convenience packaging is contributing to the market's overall expansion.

Driving Forces: What's Propelling the Heat Sealable PET Film Market?

  • Growing demand for flexible packaging: The preference for lightweight and easy-to-handle packaging is driving the market.
  • Rising food and beverage consumption: The increased consumption of packaged food and beverages directly impacts the demand for PET films.
  • Advancements in PET film technology: Innovations leading to improved barrier properties and heat sealability boost market growth.
  • Expansion of e-commerce: The rise in online shopping necessitates efficient and safe packaging solutions.

Challenges and Restraints in Heat Sealable PET Film

  • Fluctuations in raw material prices: The cost of raw materials significantly impacts the profitability of PET film manufacturers.
  • Stringent environmental regulations: Compliance with stringent environmental regulations adds to manufacturing costs.
  • Competition from substitute materials: Alternative packaging materials pose a challenge to PET film's market share.
  • Economic downturns: Recessions can significantly affect demand across various industries.

Emerging Trends in Heat Sealable PET Film

  • Bio-based PET films: Increasing demand for sustainable packaging solutions is driving the development of bio-based options.
  • Recyclable and compostable films: Growing environmental awareness is pushing for recyclable and compostable PET film alternatives.
  • Smart packaging: Integration of sensors and other technologies for improved product tracking and shelf-life management.
  • Improved barrier properties: Innovations to enhance barrier properties against oxygen, moisture, and aromas.

Growth Catalysts in Heat Sealable PET Film Industry

The heat sealable PET film industry's growth is significantly propelled by the increasing demand for flexible and convenient packaging solutions across diverse sectors. This is further fueled by technological advancements improving film properties like barrier strength and heat sealability, while simultaneously reducing material usage. The escalating emphasis on sustainable and eco-friendly packaging materials also presents a strong growth catalyst.

Leading Players in the Heat Sealable PET Film Market

  • Mitsubishi Polyester Film GmbH
  • Polyplex Corporation
  • Ester Industries Limited
  • DuPont
  • DEHUI Film
  • Cosmo Films
  • Shanghai CN Industries
  • Vacmet India
  • Sumilon
  • Qinhuangdao Zhendi New Material Technology
  • C&N Film Industrial Group
  • Transcendia
  • Terphane
  • Jostick polymers
  • Accrued Plastic

Significant Developments in Heat Sealable PET Film Sector

  • : DuPont launched a new line of recyclable PET films for food packaging.
  • : Mitsubishi Polyester Film GmbH invested in a new production facility in Asia.
  • : Several companies announced the development of bio-based PET films.
  • : Cosmo Films introduced a new heat-sealable PET film with enhanced barrier properties.
  • : A significant merger took place between two major players in the European market.

(Note: Specific dates and details for some of these developments may require further research from industry publications and company announcements.)

Want more information on Heat Sealable Pet Film? Feel free to contact us.

Heat Sealable PET Film Segmentation

  • 1. Application
    • 1.1. Medical Industry
    • 1.2. Automobile Industry
    • 1.3. Aerospace
    • 1.4. Chemical Industry
    • 1.5. Other
  • 2. Type
    • 2.1. Below 30 mm
    • 2.2. 30 - 50 mm
    • 2.3. Above 50 mm

Heat Sealable PET Film Segmentation By Geography

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