5 Must-Have Features in a bopp clear

The Unique Features of Bopp Films

BOPP films can be made both mechanically and manually. It is used for packaging, labeling and laminating. The various benefits provided by the BOPP films are: the high quality, high sustainability, increase shelf life of products, better looks and low density. Because of the numerous benefits provided by the BOPP films make it the most in demand material for packing food.

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In virtually every industry, strategic packaging materials influence everything from product safety to supply chain mobility to how a product sells. 

This makes selecting the right bag for your industry or application essential for success. 

 

After all, today's bags aren't just bags. Far from it. Modern bulk bags, such as flexible intermediate bulk containers (FIBCs), have been exhaustively engineered and tested by experts to work well under specific conditions. 

For your bag to work well under your specific conditions (e.g., where your warehouse is located, what type of filling apparatus you use, the nature of your product), you need to know which type of bag you need. 

Knowing how to tell if your specific type of bag is well made? Also key.

Here's a quick primer on three types of bags that are overwhelmingly popular across several industries and how to determine which type is perfect for your needs. 

What are PP, OPP, and BOPP bags? 

Let's start with some definitions. 

The letters 'PP' in PP, OPP, and BOPP stand for polypropylene. Polypropylene is a polymer that is strong, resistant to many chemicals, and has favorable heat and barrier properties. 

In other words: It makes for a durable and versatile bag. Polypropylene is often used to make coatings, films, tapes, and printed FIBCs on a mass scale. 

 

Polypropylene can be manipulated to produce OPP and BOPP materials, or oriented and biaxially oriented polypropylene. 

 

Oriented polypropylene

 

, or OPP, is a type of polypropylene film that is stretched in one direction. This offers better strength, clarity, and printability when compared to PP film. OPP tends to be used for labels and small film bags. 

 

Biaxially oriented polypropylene

 

, or BOPP, is a type of polypropylene film that's been stretched in two perpendicular directions. This offers even more strength, printability, and clarity when compared to PP and OPP materials. BOPP film is used to laminate over woven tapes often used in packaging. And because BOPP has innate printability, it's commonly used for intricate branding and printing details on midsize or large bulk packages.

 

Which Industries are PP, OPP, and BOPP Bags Good For? 

As we mentioned above, each type of bag is great for specific applications, as each offers unique strengths. 

It's worth discussing with your FIBC supplier which type of bag will work best for you, but here's a quick overview: 

Polypropylene (PP) bags are great for FIBCs, sandbags, and geotextiles. They're fantastic multipurpose bags because they're versatile, durable, and cost-effective. 

Oriented polypropylene (OPP) bags excel when used to create small packaging materials, often in the medical, pharmaceutical, and food industries'particularly when they don't need to carry much weight. 

Biaxially-oriented polypropylene (BOPP) bags are best suited for packaging that needs many of the same qualities as OPP bags but also must support more weight. BOPP film is often used with woven tapes to create durable packaging materials. BOPP film is especially common in the pet food and food ingredient industries because they require bags that can carry 25-50 lbs.

The Pros and Cons of PP, OPP, and BOPP Bags

When you choose a specific type of bag, you need all of the information in front of you. 

We've discussed general definitions of each type of bag and the industries they support best. To round out this guide, here's a quick rundown of the pros and cons of each type of bag (save this post for later reference): 

PP Woven Bags with PP Lamination 

Pros and Cons: 

PP bags are sustainable, moisture-resistant, durable, and chemical-resistant. 

They're also highly flammable, offer limited printability, and do not necessarily protect existing printing detail. 

OPP Film Bags

Pros and Cons: 

OPP film bags are strong, hard to puncture or tear, and have a transparent, glossy finish. These bags are also moisture- and dust-proof.

OPP film bags are difficult to stretch, and there's a limit to how much weight they can carry.

BOPP Bags

Pros and Cons: 

BOPP bags provide high tensile strength, excellent clarity, and a high degree of dimensional stability and flatness. 

These bags have a low electrostatic charge, present a barrier to water vapor, and are resistant to oils and greases. 

Aesthetically, BOPP bags provide several perks: They have a high-gloss finish, offer reverse printing ability, and perform well in high-speed printing applications.

Finally, BOPP bags are not affected by moisture. They don't wrinkle or shrink with environmental changes. Plus, they're recyclable!

The disadvantages are limited, but BOPP bags are not biodegradable. However, they are considered recyclable and classified in the No. 5 plastic recycling stream accepted by some recycling facilities.

One long-standing disadvantage of BOPP bags was sealing. However, Sonoco has recently announced the first heat-sealable BOPP barrier bag available for industrial bulk packaging applications, such as animal and pet food manufacturing.  

Choose the Right Bag for Your Needs with Sonoco

Need help figuring out which bag is best for you? Consider these questions: 

What grade of safety does your product require (e.g., food-grade, medical-grade)?

How important is crystal-clear branding for your product's success? 

Think about the equipment and processes you already have in place. Do you heat-seal your bags, for example? 

Do you require a specifically sized bag? 

If you're interested in speaking with a packaging expert to determine the best bag for your needs, reach out to Sonoco. Our friendly representatives and materials science engineers will be more than happy to discuss your packaging needs! 

 

Uses And Attributes Of Bopp Films ' Its Pros And Its Cons

BOPP (biaxially oriented polypropylene) films are widely used in various industries for their versatile attributes. One significant use of BOPP films is in packaging applications. Due to their high clarity, good gloss, and excellent printability, BOPP films are commonly used to package products, such as snacks, chocolates, and confectionery items

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Fanciful Uses and Attributes of Bopp Films

Bopp is abbreviated as biaxially oriented polypropylene; BOPP film is flexible in both machine and transversal directions, creating molecular chain orientation in 2 directions. BOPP film is developed by a cannular process, in which a cannular bubble is blown up, or a tenter frame procedure, in which a heavy extruded sheet is inflamed to its buffering point and is automatically extended by 300'400%. Stretching out in the tenter cast procedure is commonly 4.5:1 in the simple machine direction and 8.0:1 in the transversal direction, while these ratios are amply adaptable. It is a widely utilized procedure, more common than the cannular procedure, and a shiny, transparent film is developed.

 

 

BOPP can be utilized as heat-shrinkable Bopp films in shrink-wrap coatings or heat adjust to allow multidimensional stability. Heat sealing off is hard in BOPP films. Still, it can be made more facile by either covering the film after working on it with heat-sealable stuff (specified as polyvinylidene chloride) or by co-extrusion with single or, more excellent extent, copolymers before processing to get different layers of film. Copolymers utilized in sealing off layers must have rich gloss and transparency and should have low sealing off temperatures to keep aberration of the oriented polymer during waterproofing.

Random copolymers carrying 3 to 7% ethene are often utilized as sealing levels; the lower melting point (<132°C; <270°F) leads to a 30% addition inline races, and they can be reprocessed without any significant loss of durability or lucidity. Coating or coextrusion step-ups the barrier attributes of BOPP film, diminishing its permeability to gases. Basic barrier polymers are ethene vinyl alcohol, polyamide, and polyvinylidene chloride, 5 or more levels might be coextruded or laminated, or the barrier polymer can be distributed in the matrix polymer.

 

 

 

Unique Attributes of BOPP Films as base material:

 

These are such films that have BOPP as the primary material. Its unusual and unique attributes are listed below:

These BOPP films have a concentration more approximate to 0.90 g/m, and thence it delivers high yield at as is the price as compared to additional films, that is to say polyester films.

BOPP films have the first-class gloss and advanced transparency that make it a fantabulous look and superior finish.

Additional polyester films are not resistive to external pollution, whereas BOPP films play an adequate moisture resistive barrier and are inclined to defy pollution and adverse chemicals.

This Bopp film has a spectrum of an extensive range and is very readily available, that is to say. Dull, Glossy, Silky count, and so forth.

Excellent lucidity.

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Best multidimensional constancy and flatness.

Very low electrostatic charge.

Presents as an effective barrier to water vapor.

BOPP films maintain good and optimal performance on the eminent speeding printing process.

Aside from being resistive to adverse chemicals and pollution, these Bopp films play as resistive to oils and lubricating oil.

Good puncture and flex crack resistance over a wide range of temperatures.

In addition, BOPP films are not impressed by the moisture and do not crinkle or flinch with modifications in the environment.

For more bopp clearinformation, please contact us. We will provide professional answers.

Additional reading:
What type of shrink film is best for general shrink wrap applications?

They are reusable.

 

 

Benefits of BOPP Films:

 

 

BOPP films have bang-up benefits suchlike:

They are really environmentally friendly.

They are very light in weighting.

They are recognized easily all over the world.

The harm of the production due to transport, weather condition, and so on are brought down to the great extent.

Has the disposition to keep the product air-dry.

Zero de-lamination is needed.

They have sound clarity and are resistive to ultraviolet light or rays.

 

 

BOPP Films Applications:

 

BOPP films have an extensive range of product applications.

 

Grade F1 Bopp films are utilized for packing of food, and their lock-in.

Basic BOPP films are being used for electrical applications, printing processes, and lamination.

Textbook coating.

Additional applications let in extrusion application, flower packing, backward printing, and lamination.

They are as well utilized as adhesive material tapes and pressure tender tapes..

White and glaucous colored Bopp film is utilized for general functions like printing process protruding, cable over wraps up, strip packaging for coughing drops, and estrus sealable BOPP films used for all-purpose and overwrapping up.

 

 

Drawbacks of using BOPP Films in packaging:

 

 

All the same, BOPP lamination films have a few drawbacks, viz.

BOPP sealing is not too much strong.

On that point, there is an advanced range of crystal explicit nature in BOPP films as the shallow of these films is nonionic.

The functioning of this film in the printing process is short and has deficient relativity as to ink as of down surface energy.

Despite a couple of drawbacks, BOPP films have turned the most advanced buzzword in the food packaging and another packaging arena, and they are really in the good books of both the producers and the end-users or the buyers. Bopp film is widely used nowadays almost in every food packaging.

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 word.

 

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:

'

They are environment friendly

'

Are light in weight

'

Are accepted easily all across the world

'

Damage of the product due to transport, weather etc are reduced

'

to great extent

'

Has the tendency to keep the product dry

'

No de- lamination is required

'

They have good clarity and are resistant to ultra violet rays

BOPP films have wide range of applications

1.

Grade F1 films are used for packing of food and their sealing

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.

• BOPP sealing is poor
• There is high range of crystalline nature in BOPP films as the surface of these films is nonpolar.
• The performance of this film in the printing is poor and has poor relativity as to ink because of low surface energy.

In spite of few drawbacks BOPP films have become the latest buzzword in the packaging arena and they are in the good books of both the manufacturers and the end users.

 

BOPP PROPERTIES

 

1.Shelf life extension: Among all other commonly used plastic films, BOPP films provides excellent moisture barrier & its metallised variant provides better oxygen barrier to product. Both these properties of BOPP films play a key role in food packaging to extend the

shelf life of products & thus reduce food waste.

 

2.

Product quality: Apart from barrier properties, BOPP film provides consistent and excellent seal integrity because of narrow gauge spread. Good heat seal strength, lower seal initiation temperature, broad sealing window and good machinability further benefits into food packaging industry for protecting food quality.

 

3.Sustainability: BOPP film has a relatively low carbon footprint as compared to other plastic films substrate such as polyester. After cellulose film, BOPP Film is the second most preferred substrate for its eco friendly nature in flexible food packaging. Because of its low melting point, it requires lower energy to convert from one form to other. Reprocessed granules of BOPP resin are widely used to manufacture injection molded parts, household items like sitting mats, chair, table, automobile spares etc.

 

4.Aesthetic / Graphics: Excellent transparency in clear BOPP films allows providing high level of aesthetic appeal to product packaging. Half tone printing jobs with multi color printing are also carried out with ease on this film for high quality graphics. In white opaque film variant, excellent gloss, high opacity and superb whiteness provides an attractive look to product packaging. Metalized film variety gives superior metallic appearance to stand out your product on the shelf. Because of good surface tension, post lamination operations like foil stamping, UV spot coating and embossing could be carried out to enhance aesthetic look of product packaging.

 

5.

Density: It is a unique property that BOPP films has among all other commonly used flexible packaging films. Low density results into more yield during conversion and thus supports less plastic consumption concept per product. Low density results into less weight per roll for the same length of other plastic film which provides ease of material handling.

 

 

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