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Intelligent Manufacturing: Circular Blade Die Cutting Technology Assists Intelligent Upgrades in PU Protective Film Production

PU protection film is a functional protective film made of transparent PET film as the base material, coated with polyurethane adhesive on one side, and bonded with release film on the back. It is mainly used for high-temperature protection in the manufacturing process of liquid crystal displays, and for shipping protection of ITO and glass panels.

Product Features: High transparency, high weather resistance, low adhesion and easy removal, residue-free, high temperature resistance.

Product Characteristics: High cleanliness, strict control of foreign matter; excellent adhesion to the adhered object; residue-free removal after sticking, 90% transparency of the product; optical-grade PET material with good light transmittance.


The PET-based polyurethane adhesive composite optical protection film can be reused and has good air tightness, making it suitable for protecting various optical components. Compared to previous protection films, it has low contamination and is particularly suitable for ITO glass processing for touch screens. Its performance is superior to that of ordinary silicone protective films, and it can solve the problems of white fog and partial delamination of ordinary silicone protective films.


Comparison of PU Protection Film with Other Protective Films

Applications and Functions of PU Protection Film

Surface anti-static PU protection film is designed to have anti-static function during die-cutting and bonding, which can prevent and avoid contamination during these processes. On the other hand, adhesive-side anti-static PU protection film is used to prevent the generation of static electricity due to friction when removing the protective film, which can cause short circuits in sensor circuitry.

The precise dimensions, shapes, and positions of the protective film die-cut from PU protective film are related to the positioning and assembly of the product, so customers have certain requirements for the precision of the die-cut protective film. Therefore, the relationship between size accuracy, shape accuracy, and position accuracy is usually considered in designing machine parts and specifying the machining accuracy of parts. It is important to control shape errors within positional tolerances, and positional errors should be smaller than size tolerances.


The following is a brief explanation of how the protective film die-cut from PU protection film can achieve precise dimensions:

1. Size Accuracy: Refers to the degree to which the actual size of the processed part matches the center of its size tolerance band. Size accuracy is controlled by size tolerances. Size tolerances refer to the allowable variation in the part size during cutting. When the basic size is the same, the smaller the size tolerance, the higher the size accuracy.

2. Position Accuracy: Refers to the actual positional accuracy difference between surfaces of the processed part. Position accuracy is controlled by positional tolerances, and there are 12 accuracy levels for each item.

3. Shape Accuracy: Refers to the degree to which the actual geometric shape of the processed part matches the ideal shape. Shape accuracy is controlled by shape tolerances, and there are 13 accuracy levels for some items.


Precision Cutting Solutions: The Application of Circular Blade die cutting machines in PU Protective Film Production

The implementation of circular blade die cutting machines has revolutionized the production process of PU protective film. With its precise cutting capabilities, these machines ensure high-quality and accurate cutting of the protective film material, resulting in products of uniform size and shape. This level of precision is essential in meeting the stringent requirements of modern industries that demand exacting standards.

The circular blade die cutting technology also enhances the efficiency of the manufacturing process. By streamlining the cutting operation, it significantly reduces material wastage and minimizes production time, leading to cost savings and increased productivity. Furthermore, the flexibility of circular blade die cutting machines allows for the customization of cutting patterns, enabling manufacturers to cater to diverse customer needs and produce tailored protective film products.

Incorporating circular blade die cutting machines in PU protective film production not only elevates the quality and precision of the end products but also enhances the overall efficiency of the manufacturing process, making it a vital component of modern production facilities.



Contact: Pamela

Phone: +86 189 6365 3253

E-mail: info@industryprocess.com

Whatsapp:+86 189 6365 3253

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