In-depth Demand Report | Disassembling Clear Pet Graphic Film
With clear pet graphic film, Hangzhou Haimu Technology Co., Ltd. wants to bring innovation to customers' companies as well as introducing a product line that is quality and material driven. We develop this product depending on our strong R&D competencies and on a global network of Open Innovation. As expected, this product effectively generates added value for customers and society in this field.
We always actively participate in various exhibitions, seminars, conferences, and other industry activities, whether is large or small, not only to enrich our knowledge of the industry dynamics but also to enhance the presence of our HARDVOGUE in the industry and to seek more cooperation opportunity with global customers. We also remain active in various social media, such as Twitter, Facebook, YouTube, and so on, giving global customers multiple channels to know more clearly about our company, our products, our service and to interact with us.
clear pet graphic film will become a demand in the market. Thus, we are keeping pace with it to offer more appropriate choices at HARDVOGUE for customers around the world. Sample delivery service is provided before bulk order to deliver a functional experience.
When using BOPP (Biaxially Oriented Polypropylene) film for in-mold labeling (IML) in injection molding, several challenges may arise during printing, processing, and molding. Below is a detailed breakdown of common problems and corresponding solutions.
1. Printing Issues
Problems:
● Ink adhesion problems: BOPP film has a smooth, non-porous surface, making ink adhesion difficult.
● Ink drying issues: Some inks dry too slowly on BOPP, leading to smudging or incomplete curing.
● Color variation or poor opacity: The ink may not appear as expected due to the film’s transparency or reflectivity.
Solutions:
✅ Use IML-compatible inks, such as UV-curable or solvent-based inks, to improve adhesion.
✅ Perform surface treatment (e.g., corona treatment or primer coating) to increase surface tension and ink bonding.
✅ Choose white or opaque BOPP films for better color consistency and opacity.
2. Static Electricity Problems
Problems:
● Film sticking together: High static charge causes BOPP labels to stick, making feeding and handling difficult.
● Dust attraction: Static buildup attracts dust and debris, which can affect print quality and mold adhesion.
Solutions:
✅ Use anti-static treatments or coatings on the BOPP film to reduce static buildup.
✅ Install ionizing bars in the production line to neutralize static charges.
✅ Maintain proper humidity levels in the production environment to minimize static electricity.
3. Die-Cutting and Label Handling Issues
Problems:
● Poor die-cutting precision: BOPP’s toughness can cause rough or uneven cuts.
● Edge curling: Improper cutting or tension control may lead to curled labels, affecting placement in the mold.
● Film tearing or warping: Incorrect tension during processing can damage the labels.
Solutions:
✅ Use sharp, high-precision dies and optimize cutting pressure for clean edges.
✅ Control web tension in the cutting process to prevent label warping.
✅ Use multi-layer BOPP films that provide better stiffness and stability.
4. Adhesion and Bonding Problems in the Injection Mold
Problems:
● Label shifting inside the mold: If the label does not stay in place, it can cause misalignment or defects.
● Weak bonding with plastic: BOPP film may not adhere well to the injected plastic, leading to peeling.
● Wrinkling or air bubbles: Poor label positioning or excessive mold temperature can cause defects.
Solutions:
✅ Use static charge or vacuum systems to hold the label in place before injection.
✅ Ensure the film is coated with a suitable anchoring layer for better adhesion to the molded plastic.
✅ Adjust mold temperature and injection pressure to minimize air entrapment and improve label integration.
5. Temperature and Shrinkage Issues
Problems:
● Film shrinkage or distortion: High temperatures during molding can cause the BOPP label to shrink unevenly.
● Dimensional stability problems: If the film expands or contracts too much, it can lead to misalignment.
Solutions:
✅ Use high-heat-resistant BOPP films specifically designed for IML applications.
✅ Ensure proper label conditioning before molding to minimize expansion or shrinkage.
✅ Control mold temperature and injection cycle time to reduce thermal stress on the label.
6. Environmental and Storage Problems
Problems:
● Film brittleness in low temperatures: BOPP can become brittle in cold storage conditions.
● Moisture-related issues: High humidity can affect ink adhesion and cause film distortion.
Solutions:
✅ Store BOPP film in a controlled environment with stable temperature and humidity.
✅ Use protective packaging to prevent dust and moisture exposure.
✅ Allow films to acclimate to room temperature before printing and molding.
Summary Table
|
Issue Category |
Specific Problems |
Solutions |
|
Printing Issues |
Ink adhesion problems, slow drying, poor opacity |
Use IML-compatible inks, surface treatments, and opaque films |
|
Static Electricity Issues |
Labels sticking together, dust attraction |
Apply anti-static treatments, use ionizing bars, control humidity |
|
Die-Cutting Issues |
Rough cuts, edge curling, film warping |
Use sharp dies, control web tension, choose multi-layer films |
|
Molding Adhesion Issues |
Label shifting, weak bonding, wrinkles/bubbles |
Use static charge or vacuum systems, adjust mold conditions |
|
Temperature Issues |
Shrinkage, dimensional instability |
Use high-heat-resistant BOPP, control mold temperature |
|
Storage Issues |
Brittleness in cold, moisture effects |
Store in a controlled environment, acclimate before use |
Offering IML-grade BOPP films that are pre-treated for printing, anti-static properties, and high-temperature resistance will improve product performance and processing efficiency.
Plastic film, a relatively new printing material, has become a light, transparent, moisture-proof, anti-oxidation and airtight packaging choice after printing. Its toughness, folding resistance and smooth surface provide all-round protection for the goods, while also perfectly reproducing the shape and color of the goods. With the rapid development of the petrochemical industry, the types of plastic films are becoming increasingly rich, including polyethylene (PE), polyvinyl chloride (PVC), polystyrene, polyester film (PET), polypropylene (PP) and nylon. ► Material characteristics Plastic film has become a packaging choice due to its excellent characteristics such as moisture resistance, anti-oxidation and airtightness. It includes PE, PVC, PET and other types, each with its own characteristics such as high insulation of polyethylene and high strength of nylon. ► Application Examples However, the performance of each plastic film is different, so the difficulty of printing and its applicability as a packaging material will also be different. For example, although polyethylene film is non-toxic and has good insulation properties, it is relatively difficult to print due to its strong inertness. In contrast, polyvinyl chloride film has good light resistance and aging resistance, as well as excellent tear resistance, making it very suitable for packaging bags and book covers. In addition, the soft and tough characteristics of polystyrene film, as well as its advantages such as resistance to freezing and resistance to acid, alkali and oil esters, enable it to obtain better fastness when printed. Polyester film has become an ideal choice for packaging and composite materials due to its colorless transparency, moisture resistance, airtightness and high strength. Polypropylene film has excellent gloss and transparency, as well as excellent heat resistance and friction resistance, but its heat sealing performance is slightly insufficient. It is worth mentioning that nylon film is often used for load-bearing and wear-resistant packaging and steaming packaging due to its excellent strength, oil and ester resistance, and non-toxic and odorless characteristics. Its direct printing without surface treatment saves the processing steps before printing.