Raw material properties of BOPP film

BOPP Film: Characteristics of Raw Materials

If you are looking for more details, kindly visit bopp film manufacturing process.

Biaxially Oriented Polypropylene (BOPP) film possesses exceptional properties including high strength, superior gas barrier characteristics, excellent printability, and tear resistance. It stands out as the most utilized type within the spectrum of PP film products, boasting widespread applications. ExxonMobil, a prominent producer, annually manufactures over 2 million tons of BOPP films, offering a diverse range comprising nearly 40 varieties tailored to various application domains.

1. Key Properties of Polypropylene Resin and Measurement Techniques

Polypropylene, abbreviated as PP, undergoes partial crystallization through the polymerization of propylene monomer. Four primary polymerization methods—solution, solvent slurry, liquid phase bulk, and gas phase—yield polypropylene resin with varied properties. Among these, melt mass flow rate (MFR) and stereoisotacticity stand as crucial parameters.

• Melt Flow Rate (MFR): MFR measures the mass of thermoplastic material passing through a standard die in 10 minutes under specified temperature and pressure conditions, denoted in g/10min. It is a crucial indicator of polypropylene's flow characteristics during processing, with a direct correlation to polymer molecular weight and viscosity. MFR evaluation typically involves an extrusion plastometer.
• Stereoregularity (Isotacticity): Isotacticity denotes the proportion of regular isomers within the polymer structure. This parameter, vital in delineating polypropylene's properties, primarily depends on the percentage of isotactic structure molecules within the homopolymer. Isotacticity assessment often utilizes extraction methods due to the solubility characteristics of the isomer.
• Molecular Weight and Distribution: Molecular weight, the sum of relative atomic masses in a chemical formula, and molecular weight distribution, represented by the distribution coefficient, signify the spread around the average molecular weight. Determination techniques encompass various methods such as end group analysis, solution colligative methods, and viscosity methods, chosen according to the molecular weight range. Accurate depiction of polymer molecular weight necessitates consideration of both statistical average and distribution.
• Particle Appearance: Evaluation of particle appearance involves scrutiny for deviations such as black particles, colored particles, impurities, etc., against predefined criteria. This assessment typically involves screening resin pellets through sieves and visual inspection.
• Powder Ash: Powder ash content quantifies residual catalyst and other substances in the resin. It is measured by determining the residual inorganic ash content post-calcination of polypropylene particles at 850°C.
• Crystallinity: Crystallinity, expressing the mass of crystalline segments as a percentage of the total mass, is commonly analyzed qualitatively using data from diffractometers.
• Tensile Strength: Tensile strength denotes the maximum stress a material can endure before experiencing uniform plastic deformation under specific environmental conditions. It is determined through fracture experiments conducted on polypropylene sheets using a tensile testing machine.

2. Introduction to Differentiated BOPP Film Varieties

BOPP film varieties encompass a diverse array catering to specific applications, including:

• BOPP Laser Film
• BOPP High Temperature Transfer Film
• BOPP Low Temperature Transfer Film
• BOPP Single and Double-Sided Heat Sealing Film
• BOPP Matte Film
• BOPP Standard Smoke Film
• BOPP High Gloss Shrink Smoke Film
• BOPP Anti-Wear Pattern Smoke Film
• BOPP Anti-Red and Anti-Wrinkle Cigarette Film
• BOPP Medium-Shrink and Low-Shrink Cigarette Film
• BOPP Heat-Sealing Type Wire Film
• BOPP Light Film Type Wire Film
• BOPP Flat Mold (Tape Film, Bag Making Film, Printing Film, etc.)
• BOPP Pearlescent Film
• BOPP Synthetic Paper
• BOPP Pre-Coated Film
• BOPP Aluminum Coating

 

BOPP film Lamination  Matte and Glossy   Bopp Cold Thermal Lamination Film

BOPP film includes: ordinary biaxial stretching polypropylene film, heat-sealed biaxial stretching polypropylene film, cigarette packaging film, biaxial stretching polypropylene pearlescent film, biaxial stretching polypropylene metallized film, extinction film, etc.

Application:

1. BOPP Normal Film; used for printing industry, adhesive tape film industry

BOPP ordinary film (flat film, light film) is suitable for printing and compounding of food packaging, paper compounding and general packaging. It is the most widely used variety in BOPP products. It is widely used in all kinds of printing and compounding products for packaging of various foods and articles. In the consumption of optical film, tape film occupies a large proportion, and its production characteristics are large output, simple process and low technical requirements.

2. BOPP thermal sealing film is divided into two kinds: one-sided thermal sealing film and two-sided thermal sealing film. It is a polypropylene thermal sealing film (BOPP thermal sealing film) made by biaxial stretching of heat sealing masterbatch on the surface. It is mainly used in the thermal sealing packaging of food, medicine and electrical components. BOPP heat sealing film is not only hot sealing, but also printable. It is mainly used in composite, printing, bag making and other industries.

 

Name

Cold Lamination Film

Material

 Cpp film Opp film (Matte film /Gloss film )

Application

Advertising, outdoor signage display and decoration purpose

Thickness

Thickness : 18mic .26mic .40mic .      

Wide

Custom required

Length

400m/1000m/roll 

Type 

Light surface/bright surface (transparent), dumb surface

Color 

Transparent /Clear , Matte ,Gloss

Printed 

Printing accuracy: 1200dpi 

Delivery Time 

Depends on the quantity, usually 5-15 days after deposit received

 

What's the difference between a hot laminating film and a cold laminating film?

The adhesive on a "hot" laminating film activates when the printed graphic is run through a hot-roll laminator at temperatures between 210 and 240 degrees. Because these high levels of heat can damage some types of inkjet graphics, "low-melt" or "heat-assist" films are also used. "Low melt" films have heat-activated adhesives that can applied at 185 to 195 degrees. "Heat assist" films have pressure-sensitive adhesives (PSAs) and liners and are applied with hot-roll laminators at 185 to 195 degrees.

"Cold" laminating films have a more aggressive adhesive that can be applied with pressure, instead of heat. A release liner protects the adhesive until it ready to applied, typically on a cold-roll laminator. Cold laminating films typically cost more than hot laminating films, but they can be applied using less costly, easier-to-operate non-heated laminators.

Cold roll laminators are also used for laying down adhesive films in the sign-making industry, for example mounting a large print onto a board. A practiced operator can apply a large adhesive sheet in a fraction of the time it takes to do so by hand.

The company is the world’s best what is bopp label supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

 

 

 

While a machine can make lamination easier and quicker, it is possible to laminate paper at home without one. You'll need some type of thin, transparent plastic - either self-adhesive or self-laminating sheets, synthetic paper or even transparent packing tape can do in a pinch

 Application

Production Process

About our company

Why choose us

1.We have a complete quality inspection system.

Excellent testing equipment

Professional testing team

quality control during whole production process

2.Our factory has Strictly control the source of raw materials,stable and reliable raw material supplier.

Independent quality department

Stable and reliable raw material supplier

3.Our company has an experienced team of experts. Can guarantee the customer's pre-sales service

Delivery

Before delivery, make sure that the goods are qualified. After the logistics department has been confirmed strictly. Each step is photographed before delivery.

FAQ

Q1. Is your company a factory or trading company?

A: Our company is a professional manufacturer.

Q2. What about the lead time?

A: 15days after receiving your deposit.

Q3. Do you have any MOQ?

A: Transparent BOPP Films MOQ is 1000KG,Colorful BOPP Sheet MOQ is 3000KG.

Q4. Where is your factory located? How can I visit there?

A: Our factory is located in Zibo City, Shandong Province, China.All our clients, from home or abroad, are warmly welcome to visit our company !

Q5. How can I get some samples?

A: 1,We are honored to offer you samples. New clients are expected to pay for the courier cost,the samples are free for you, this charge will be deducted from the payment for formal order.

2,Regarding the courier cost: you can arrange a RPI (remote pick-up) service upon FedEx,UPS, DHL, TNT, etc. to have the samples collected; or inform us your DHL collection account.Then you can pay the freight direct to your local carrier company.

Q6. How does your factory do regarding quality control?

A: Quality is priority? We always attach great importance to quality controlling from the very beginning to the very end

 

Contact us to discuss your requirements of oriented polypropylene film. Our experienced sales team can help you identify the options that best suit your needs.