- [Service]What to Do If Sealing Film Has an Odor?2026/06/12/ 16:01
- Encountering an odor when opening sealing film is a problem many users have faced. Some worry it indicates unsafe materials, while others suspect production contamination. In fact, there are multiple possible causes for sealing film odor, each requiring individual investigation. Today, Leadtra Packaging will help you analyze common causes and solutions.
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- [Service]Why Do Some Sealing Liner Stick to the Bottle Cap When Opened?2026/06/11/ 15:48
- Many people have encountered this situation when unscrewing a bottle cap: the Sealing Liner doesn't stay on the bottle mouth but sticks firmly to the inside of the cap. Is this a quality problem? Not necessarily. Let’s analyze the common reasons for this phenomenon.
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- [Service]What Information Is Needed for Custom Sealing Film?2026/06/06/ 11:01
- When customizing sealing film, many people don't know how to specify their requirements and often just say "I want aluminum foil" or "I want easy-tear." The result is either the wrong size or unsatisfactory sealing performance, wasting time on repeated revisions. In fact, by preparing the following information in advance, the customization process will go much smoother.
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- [Service]Why Do Sealing Liner Fall Off?2026/06/05/ 10:53
- Sealing liner detachment is a common issue in packaging production. Many people's first reaction is "poor Liner quality" or "improper sealing machine parameters."
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- [Industry Information]2026 Sealing Film Industry Trends: Easy-Tear, Eco-Friendly, and Smart Take Center Stage2026/06/04/ 10:39
- In 2026, the sealing film industry is undergoing a transformation from "functional fulfillment" to "experience enhancement." In the past, the core demand for sealing film was simple: it just needed to seal well.
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- [Service]Custom Sealing Films See New Growth Driven by the Booming Cosmetics Sample Economy2026/06/03/ 17:05
- In recent years, the "sample economy" has been heating up in the cosmetics industry. From premium brand gifts to domestic brand trials, from livestream flash sales to private-domain sampling, small-pack, low-barrier trial sizes have become an essential tool for customer acquisition, conversion, and repurchase. This trend has quietly driven growth in demand for custom sealing films among upstream suppliers.
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- [Service]What’s the difference between 0.02mm and 0.05mm sealing film thickness?2026/06/02/ 16:54
- When customizing or purchasing sealing film, thickness is an unavoidable parameter. Faced with two common specifications — 0.02mm and 0.05mm — many people ask: what difference does such a small margin really make? How should you choose? Today, Leadtra Packaging will help clarify this.
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- [Service]Q&A: How Long Can Aluminum Foil Heat-Sealing Film Last?2026/06/02/ 16:36
- People often ask: how long can aluminum foil heat-sealing film actually seal? This question is not easy to answer, because the duration of the seal depends on multiple factors. Let us break it down for you.
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- [News & Updates]Cosmoprof Asia HK 20182018/11/07/ 10:17
- Cosmoprof Asia HONG KONG The opening of the AsiaWorld-Expo (Airport) in Hong Kong will be held from November 13th to 15th! Leadmens Packaging 5-H16 Waiting for your visit
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- [Industry Information]How to distinguish aluminum foil sealing film is aluminum foil or VMPET2018/08/31/ 10:29
- Usually when we communicate with customers, customers can't distinguish between aluminum foil and what is VMPET. In fact, in our professional field, there is a simple way to distinguish, that is, we pick up the aluminum foil or VMPET, and illuminate under the light. If it can transmit light, it belongs to VMPET. If it can't transmit light, it is aluminum foil.
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- [Industry Information]Advantages of die-cut aluminum foil lids2018/08/27/ 12:01
- The advantage of die-cut aluminum foil lids is that the product can be die-cut according to the printing pattern, the edges are neat, and it can be die-cut according to customer's requirements. Our company die-cut aluminum foil sealing film adopts video positioning and tracking, and the precision rate reaches 0.005mm, which guarantees the beauty of the product and the requirements for use.
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- [Industry Information]Common structure of aluminum foil sealing film2018/08/20/ 14:13
- The common structure of aluminum foil sealing film is: PET / printing / aluminum foil / sealing layer The above is a common structure, we can change the material thickness or material according to the requirements of the customer, which can meet different customer requirements.
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- [Industry Information]The difference between the use of electromagnetic induction seal liner and aluminum foil sealing film2018/08/19/ 14:09
- The electromagnetic induction seal liner is an electromagnetic induction machine that resonates with aluminum foil by ultrasonic waves and then generates heat to seal. The aluminum foil sealing film is sealed by a hot press sealing machine by direct heating at a temperature and with a certain pressure and time. Two different products, but all can achieve the sealing effect.
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- [Industry Information]Induction sealing liners use process2018/08/17/ 11:04
- First, take out the electromagnetic induction sealing liners, insert it into the cover (aluminum foil is facing outward, facing the bottle mouth), then tighten the cover and heat it by electromagnetic induction.
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- [Industry Information]Containers of different materials require a matching aluminum foil sealing film2018/08/16/ 14:23
- There are containers of different materials on the market, including PET, PVC, PP, PE, PS, GLASS, etc. Therefore, when selecting the aluminum foil sealing film, it needs to correspond to the container material, which will improve the product sealing and appearance, increase the competitiveness of the product in the market, and attract consumers to consume.
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- [Industry Information]Electromagnetic induction aluminum foil sealing liner can not seal the bottle2018/08/15/ 14:25
- In the process of using the electromagnetic induction aluminum foil sealing liner, if there is a bottle that cannot be sealed, there are the following aspects that need attention, which will solve the problem. 1: The bottle is inconsistent with the material of the electromagnetic induction sealing liner 2: There is foreign matter or liquid on the edge of the bottle. 3: The electromagnetic induction machine is unstable in power
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- [Industry Information]Aluminum foil sealing film customization2018/08/14/ 09:21
- Aluminum foil sealing film can be customized according to customer requirements: printing, thickness, corrosion resistance, oil resistance, heat sealing layer and so on. It can also be equipped with easy-to-tear function, providing a high-quality experience and improving the quality of the product.
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- [Industry Information]Leadmens packaging aluminum foil sealing film advantage2018/08/13/ 10:13
- The advantage of Leadmens packaging aluminum foil sealing film and aluminum foil sealing lids lies in the precipitation of 17 years of production technology, the understanding of various materials and the development of products. In this long period of time, Leadmens Packaging continues to strive for excellence in the aluminum foil sealing film industry, and its products are continuously optimized and continuously improved. The products are classified into PET, PVC, PS, AS, PP, PE, GLASS and other materials, most of which are independently developed. The process includes co-extrusion blown film, coating, coating, compounding and other multi-element production. Formulation adjustment according to the requirements of different customers. For example: sealing tension, air permeability, heat seal strength, retort sterilization requirements, corrosion resistance, alcohol resistance, etc., can be freely adjusted, so that different formulations can be used for different products, for strong performance.
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- [Industry Information]Process and benefits of PP aluminum foil sealing film for food2018/08/10/ 17:36
- The PP aluminum foil sealing film for food uses dry compounding process. The general product structure: PET+printing+aluminum foil+PP heat sealing layer, PP aluminum foil sealing film has the functions of easy tearing, moisture proof, barrier property, etc., effectively protecting products from pollution.
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- [Industry Information]Electromagnetic induction sealing liners product classification2018/08/09/ 15:27
- Electromagnetic induction sealing liners are divided into 1 piece and 2 pieces, and then divided into PET, PVC, PP, PE, PS, glass, etc. Therefore, it is best to know the material of the bottle before using the electromagnetic induction gasket, so that different materials can be used for different materials.
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Spotlight
Glass, Plastic, Metal — How to Choose the Right Sealing Method for Different Container Materials?
- These three materials ...
Where Do Bubbles on Sealing Film Come From?
- After sealing, you not...
Why does the sealing liner stick to the bottle cap when you unscrew it?
- You unscrew the cap an...
- 1Glass, Plastic, Metal — How to Choose the Right Sealing Method for Different Container Materials?
- 2Where Do Bubbles on Sealing Film Come From?
- 3Why does the sealing liner stick to the bottle cap when you unscrew it?
- 4Do Seal Liner Work for Both Wide-Mouth and Narrow-Mouth Bottles?
- 5Do Seal Liner Come in Different Thicknesses, and How Do You Choose?
- 6What Is the Shelf Life of Sealing Film and How Should It Be Stored?
- 7What Are the Respective Applications for Sealing Film Rolls and Pre-Cut Sheets?
- 8Can Sealing Film Be Customized for Irregular Bottle Mouths?
- 9How to Solve Sealing Film Detachment in High-Temperature Environments?
- 10How to Determine If a Sealing Film Is Right for Your Product?
