Why is BOPP Thermal Film Better?

Biaxially Oriented PolyPropylene (BOPP Film) is the film that has been stretched both mechanically and also in manually using cross direction technique. Due to its advantages this film has become one of the most popular and highly demanded films all across the globe.

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These are the films that have BOPP as the base material. Its unique attributes are:

1. These films have the density nearer to 0.90 g/m and hence it renders high yield at the same cost as compared to other films viz. polyester films
2. BOPP films have excellent gloss and high transparency that give it an excellent look and fine finish.
3. Other polyester films are not resistant to outside pollution whereas BOPP films act as good moisture resistant barrier and have tendency to resist pollution and harmful chemicals.
4. This film have spectrum of wide range and are easily available viz. Matte, Glossy, Silky matter etc.
5. Excellent clarity
6. Best dimensional stability and flatness
7. Low electro static charge
8. Acts as good barrier to water vapor
9. BOPP films exert good and optimum performance on high speeding printing
10. Apart from resistant to harmful chemicals and pollution, these films act as resistant to oils and grease
11. Good puncture and flex crack resistance over wide range of temperatures
12. Also BOPP films are not affected by the moisture and does not wrinkle or shrink with changes in the environment
13. They are recyclable

BOPP films have great benefits like:

BOPP films have wide range of applications

1. Grade F1 films are used for packing of food and their sealin
2. Standard BOPP films are used for electrical applications, printing and lamination
3. Text book covering
4. Other applications includes extrusion coating, flower packing, reverse printing and lamination
5. They are also used as adhesive tapes and pressure sensitive tapes
6. White and opaque colored film are used for general purposes like printing pouching, cable over wrap, strip packaging for cough drops and heat sealable BOPP films are used for general purpose and over wrapping.

However BOPP lamination films have certain draw backs viz.

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Thermal film refers to the process of Pre-Coating plastic film, after rewinding, and then laminating with paper. It starts with the thermal film processing plant according to the use of specifications, width, the adhesive coating on the film then rewinding for the use of manufacturers to choose, and then laminated with the paper.

Lamination, means paste film, is a processing technology that coating adhesive on plastic film , with heating and pressing the paper print to bond it together to form a paper-plastic integrated product.BOPP pre-coating film is a composite film formed by polypropylene film and EVA hot melt adhesive to form a lamination structure, With unique properties, it can improve the shortcomings of ordinary polypropylene films and give full play to the superior properties of polypropylene films.

• It is light in weight and has a density of 0.91g/cm2. It is one of the lightest plastic films and can float on the water.
• Good heat resistance, which is an excellent property that thermoplastics do not have.
• Good chemical stability, acid resistance, alkali resistance, oil resistance, moisture-proof and waterproof barrier properties.
• Non-toxic, odorless and tasteless, like polyethylene, it is recognized as the best material for food packaging in the world.
• High transparency, good gloss, especially suitable for inner printing, good printing adaptability

• The oxygen barrier is poor, and it is easy to age when exposed to sunlight.
• The low temperature resistance is poor, and the texture becomes brittle at low temperature.
• When used for printing, the surface must be corona treated (surface tension is greater than or equal to 38mN/m) to get better results.
• High static electricity, if there is no static elimination device, anti static agent needs to be added during production.

1. The mechanical strength is high, and its tensile strength is about 5~10 times that of polyethylene. Therefore, 12mic PET film has been widely used, and 9mic ultra-thin PET film has also been used. In addition, polyester film also has high stiffness. and strong impact resistance.
2. Good heat resistance, the melting point is 260℃, and the softening point is 230~240℃. Even if the bi axial stretching process is adopted, the thermal shrinkage rate is still very small at high temperature, and it has extremely good dimensional stability. Time heating still does not affect its performance.
3. Good oil resistance and chemical resistance, not easy to dissolve, good acid corrosion resistance, resistance to organic solvents and oils, but easy to deteriorate when exposed to strong alkali.
4. It has excellent gas barrier properties and good odor barrier properties.
5. Barrier performance to water vapor is inferior to that of polyethylene and polypropylene.
6. High transparency, light transmittance above 90%, good gloss and good printing performance.
7. To prevent poor UV transmission.

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