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Breakthrough in mass production of ultra-low-temperature heat-sealing films, driving industry transformation through cost reduction and efficiency enhancement.

2025-12-30

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The heat-sealing film industry has achieved a major technological breakthrough: the ultra-low-temperature heat-sealing film, featuring a five-layer co-extrusion micro- and nano-structured design, has successfully reduced the traditional heat-sealing temperature—from 80–120℃—to a range of 40–60℃. This reduction in temperature has led to a 40% decrease in energy consumption, while maintaining a peel strength of over 8 N/15 mm, thus striking a balance between environmental friendliness and performance. Currently, China’s first industrial-scale production line for ultra-low-temperature heat-sealing films has reached stable mass production, with a single-line capacity exceeding 8,000 tons per year and a yield rate rising to 91%.

During the production process, the application of an AI-powered visual inspection system enables micron-level control of coating thickness and ensures that thermal sealing uniformity deviations are no greater than ±0.3 μm. Combined with magnetic marker sorting technology, this significantly enhances product quality stability and recycling efficiency. In terms of cost structure, the co-extrusion process has reduced unit production costs by 19%, and the increased proportion of bio-based polyolefin raw materials—now reaching 45%—further boosts the cost-effectiveness of the products. After adopting this technology, some brands have seen a 32% reduction in the carbon footprint of their packaging.

In terms of market demand, global demand for ultra-low-temperature heat-sealing films is expected to reach 230,000 tons by 2025, with China accounting for a 38% share. The food and pharmaceutical sectors are the primary sources of demand, with cold-chain packaging applications accounting for 47%. The penetration rates in pre-made meal packaging and pharmaceutical packaging materials have been steadily increasing at an annual average rate. Looking ahead, as technologies such as digital twin systems are increasingly adopted in manufacturing, mold-change times will be further reduced, and production efficiency is expected to improve by another sixfold, thereby promoting the wider adoption of ultra-low-temperature heat-sealing films.

Breakthrough in Multi-layer Co-extrusion Composite Film Technology

The heat-resistant heat-sealing film technology is well-established and suitable for high-temperature processing and sterilization requirements.

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