Medium Low-Temperature Heat-Sealable Film

For high-speed automated packaging lines, the Medium Low-Temperature Heat-Sealable Film directly impacts the operational efficiency of the entire line. When equipment performs continuous, high-speed bag making, sealing, or packaging, materials requiring demanding heat-sealing conditions can place strain on the equipment's temperature control systems and complicate the coordination of various packaging processes. Medium low lemperature heat sealable films designed for low-to-medium temperature, rapid sealing is a functional film developed specifically to address these needs, focusing on low-temperature heat sealing, rapid seal formation, and material compatibility within automated packaging workflows.

Suitable Packaging Scenarios:

This Medium Low-Temperature Heat-Sealable Film is ideal for flexible packaging and automated packaging applications that require heat-sealing capabilities. Key application scenarios within the packaging industry include:

Food Packaging: 

Snack foods, baked goods, frozen foods, and other products requiring continuous bag making and heat sealing. For high-speed food packaging lines, materials must balance packaging speed with seal stability.

Personal Care and Household Product Packaging: 

Packaging for tissues, wet wipes, toiletries, and other daily-use chemical products. Manufacturers in this sector must select materials that not only meet basic heat-sealing requirements but also align with specific packaging formats and automated equipment.

Pharmaceutical and Related Packaging: 

Packaging for pharmaceuticals and medical supplies demands high stability throughout the packaging process. Practical application requires material validation based on specific packaging structures, equipment, and regulatory requirements.

Automated Bag-Making and Packaging: 

For companies utilizing continuous, automated equipment, low-to-medium temperature, rapid-sealing BOPP film serves as a viable heat-sealing material option.

The True Value of  Film from a Procurement Perspective:

When purchasing BOPP film, simply comparing the "price per ton" often fails to reflect the material's actual cost. For films used extensively on high-speed lines, factors such as material stability, dimensional consistency, equipment compatibility, and supply reliability all influence the final production cost.

Therefore, the procurement value of medium low lemperature heat sealable film can be understood as follows:

1. Material Value: 

It provides a functional BOPP film characterized by low-temperature heat-sealing capabilities, offering a suitable material choice for automated packaging processes. 

2. Production Value: 

By aligning with high-speed packaging processes, we help packaging enterprises focus on packaging efficiency per unit of time.

3. Equipment Value: 

Material selection is based on actual packaging equipment, production speeds, and packaging structures, rather than simply purchasing based on film names.

4. Supply Value: 

For long-term B2B procurement, stable production capacity and specification management are crucial. Tianjin Huaheng operates two German Brückner BOPP production lines, each with a design capacity of 30,000 tons/year (totaling 60,000 tons/year) and a maximum line speed of 450 m/min. The company’s BOPP products range in thickness from 10 to 60 μm and are supported by comprehensive slitting, inspection, and packaging equipment.

Technical Specifications:

Parameter Item	Product Information
Product Name	BOPP Medium Low-Temperature Heat-Sealable Film
Base Material	BOPP Polypropylene Film
Technology	Biaxially Oriented BOPP Process
Production Equipment	Bruckner BOPP Production Line (Germany)
Quantity of BOPP Production Lines in Factory	2 sets
Single Line Capacity	30,000 tons/year
Total Annual Capacity	60,000 tons/year
Line Speed	Max. 450 m/min
BOPP Product Thickness Range	10–60 μm
Product Features	Low-temperature heat sealing & fast heat sealing
Thickness	Customizable
Width	Customizable

Reliable Shipping and Packaging:

Medium Low-Temperature Heat-Sealable Films are supplied in roll form. For international B2B procurement, factors beyond the product itself—such as roll protection during transit, packaging integrity, and delivery management—are equally important.

Huaheng is equipped with post-processing facilities for slitting, inspection, and packaging, enabling complete processing and final packaging of the BOPP film.

Standard Shipping Process: 

Production → Inspection → Slitting → Finished Product Packaging → Dispatch → Logistics/Transport

Packaging Protection: 

Finished products are packaged prior to shipment to minimize risks such as dust contamination, roll impact, outer packaging damage, and moisture exposure during transit. Specific packaging methods are determined based on product specifications, order volume, and the mode of transport.

Huaheng provides order tracking, specification confirmation, professional logistics, and technical support to assist overseas buyers throughout the entire procurement process, from order placement to delivery.

FAQ

Q1: What should be considered when storing the films, and what is the shelf life?

The heat-seal layer of the film is a modified copolymer; high temperatures and prolonged exposure to sunlight can degrade heat-sealing performance. Recommended storage conditions: temperature of 20–28°C, kept dry and away from light, and protected from heavy pressure. The standard shelf life is 6–12 months. Stockpiling beyond the recommended shelf life is not advised; for goods nearing their expiration date, heat-sealing performance must be re-tested before use on packaging machinery.

Q2: What specific temperature range defines "low-temperature heat-sealing" for this product, and how does it differ from standard BOPP heat-sealable film?

The initial heat-sealing temperature for low-temperature grades typically ranges from 95°C to 110°C, whereas standard BOPP heat-sealable films usually require temperatures above 125°C. Low-temperature films allow for lower heat-seal roller temperatures, enabling faster packaging speeds and reducing issues such as heat-induced wrinkling or burn-through; however, the low-temperature heat-seal layer generally offers lower abrasion and heat resistance compared to standard heat-sealable BOPP films.

Q3: Can this heat-sealable film be printed on directly?

Printing on the heat-sealable surface of medium low lemperature heat sealable films is generally not recommended; printing should be done on the non-heat-sealable base film surface. The base film surface undergoes corona treatment during manufacturing to achieve a surface energy of 42–44 mN/m, ensuring proper ink adhesion.

Q4: What causes significant fluctuations in heat-seal strength when purchasing this film, and how should incoming materials be controlled?

Fluctuations can stem from the film's formulation or production process, as well as the heat-sealing temperature, pressure, and dwell time used at the customer's facility. When purchasing, it is recommended to: verify the heat-seal strength test report for the specific batch; avoid mixing different batches during mass production; and conduct gradient heat-seal testing on incoming samples to confirm that the actual processing window is compatible with your packaging equipment.

Q5: How do I determine if I need to select a  BOPP film?

If your packaging line operates at high speeds, your equipment has a low maximum heat-sealing temperature, or you are using thin packaging substrates prone to burn-through or wrinkling, then a low-temperature heat-sealable film is the suitable choice.