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Transparent PE Film Bags - China Suppliers & Factory for Flexible Food Packaging Solutions
Spout pouches have become the mainstream packaging form for liquid and semi-fluid products due to their portability and easy access, but traditional films often face two pain points: one is the loose heat-sealing between spout and film, which is prone to leakage; the other is the insufficient film strength, which is easy to break after repeated use. Our IPE film dedicated to spout pouches, through structural design and raw material optimization, specifically solves the core problems of spout pouch packaging, providing a reliable packaging solution for various fluid and semi-fluid products.
1. Spout-Specific Heat-Sealing Design: Eliminate Leakage Risks
Aiming at the heat-sealing difficulties between spout and film, a customized heat-sealing layer formula is adopted, combined with multi-layer co-extrusion technology to precisely control the thickness and component distribution of the heat-sealing layer. When the film is heat-sealed with the spout, a high-strength seal can be formed in the temperature range of 100–120℃, with the heat-sealing strength stably maintained at 18–22 N/15mm, far exceeding the standard of 12–15 N/15mm for conventional films. Even when filled with liquid (such as 500ml juice) and inverted or shaken, there is no dripping at the joint between the spout and the film; tests show that when the sealed spout pouch falls from a height of 1 meter, the seal integrity rate reaches 100%, completely solving the leakage problem of spout pouches.
2. Tough and Durable Structure: Suitable for Repeated Use
The film adopts a double-layer protective structure of "reinforced base layer + puncture-resistant surface layer", with tensile strength ≥25 MPa and puncture resistance ≥12 N, far higher than ordinary IPE films. In daily use, even if the spout pouch is repeatedly squeezed (such as squeezing tomato sauce, salad dressing) or the spout is frequently inserted and extracted (such as drinking yogurt and juice multiple times), the film is not easy to crack or deform. For contents with certain corrosiveness such as cooking oil and laundry detergent, the film also has mild chemical resistance, which can avoid film swelling or strength attenuation caused by long-term contact and extend the service life of the packaging.
3. Compatibility with Automated Processing: Improve Production Efficiency
Produced by advanced five-layer co-extrusion blown film technology, the film's thickness deviation is strictly controlled within 2%–4%, far lower than the industry's conventional standard of 5%–8%, ensuring film flatness and structural stability. To meet the needs of spout pouch automated production lines, the film surface is smooth without impurities and static electricity, which can smoothly pass through the forming-filling-sealing integrated equipment (speed up to 60–100 bags/min) without jamming or waste film. At the same time, the film has a wide heat-sealing temperature range (100–130℃), no need to frequently adjust equipment parameters, reducing operation difficulty. It supports surface printing (pattern adhesion up to 4B level), and can customize brand logos, product descriptions and other information, balancing practicality and brand communication, helping enterprises improve the market competitiveness of products.
Frequently Asked Questions
QWhat makes IPE film better than conventional films for spout pouch packaging?
IPE film features a customized heat-sealing layer formula and multi-layer co-extrusion technology that delivers a heat-sealing strength of 18–22 N/15mm, far exceeding the 12–15 N/15mm standard of conventional films. This ensures a significantly tighter seal between the spout and film, virtually eliminating leakage risks even under inversion or heavy shaking.
QWhat is the heat-sealing temperature range for this IPE film?
The IPE film supports a wide heat-sealing temperature range of 100–130℃. This flexibility means production lines do not need to frequently adjust equipment parameters, reducing operational difficulty and improving overall efficiency.
QIs this IPE film suitable for products like cooking oil, laundry detergent, or other mildly corrosive contents?
Yes. The IPE film has mild chemical resistance that protects against film swelling or strength attenuation caused by long-term contact with mildly corrosive substances such as cooking oil and laundry detergent, extending the overall service life of the packaging.
QCan this film be used on high-speed automated production lines?
Absolutely. The film's surface is smooth, free of impurities and static electricity, making it fully compatible with forming-filling-sealing integrated equipment running at speeds of 60–100 bags per minute, without jamming or generating waste film.
QDoes the IPE film support custom printing for branding purposes?
Yes. The film supports surface printing with pattern adhesion up to 4B level, allowing brands to customize logos, product descriptions, and other information directly on the packaging. This helps businesses enhance product presentation and market competitiveness.
QHow does the film perform in drop and puncture resistance tests?
The IPE film features a "reinforced base layer + puncture-resistant surface layer" structure with tensile strength ≥25 MPa and puncture resistance ≥12 N. Drop tests confirm that a sealed spout pouch falling from 1 meter achieves a 100% seal integrity rate, demonstrating excellent durability for everyday use.