Glossary of Terms

What is PET?

PET stands for Polyethylene Terephthalate. It is a highly recycled polymer and is the same material that your standard water bottle is manufactured from. It is known for its durability and glass-like clarity. If you are looking for an acetate box, chances are that these days it is made from PET. PET is also referred to as A-PET. The “A” means amorphous.

What is A-PET?

APET is PET packaging but in a specific stage of processing. PET, of course, is the highly common substrate used to make products like water bottles. When it’s being molded in an amorphous state, it goes by the name APET.

What is PET-G?

PET-G is similar to PET, but with a key difference: The addition of Glycol, (-G) The Glycol additive makes the material significantly more expensive so it is rarely used for making plastic folding cartons. Where it is used in the manufacturing of clear plastic folding cartons, it is usually done to allow companies that don’t specialize in producing plastic folding boxes to use cold solvent adhesives, instead of the specialized PUR glue systems that are designed for gluing PET boxes. PET-G is also RF sealable for use in clamshells or other specialized projects.

What is R-PET or PCR-PET?

RPET is Recycled Polyethylene Terephthalate and PCR-PET is Post-Consumer Recycled Polyethylene Terephthalate. RPET means that there is recycled content in the material; the recycled content is typically post industrial from the manufacturing process. PCR-PET means that the recycled content came from PET that has been used by the consumer, and then recycled. Essentially, turning water bottles into clear boxes!

What is TerraPET?

TerraPET™ is PET which is made from up to 30% sugar cane, a renewable resource.

What is PVC?

Polyvinyl Chloride (PVC) is one of the most commonly used thermoplastic polymers in the world (next to only a few more widely used plastics like PETand PP). It is a naturally white and very brittle (prior to the additions of plasticizers) plastic.  PVC is a rigid plastic that has some durability. Over time, though, the material may break down from exposure to UV rays—something that is not ideal for packaging materials, especially for food or retail designs. PET plastic, however, is designed to withstand UV rays, making it a suitable choice for almost all packaging designs.

What is Acetate?

Acetate film is a thin, clear or translucent, and flexible plastic sheet or strip that will accept printing ink. It is also known for its wrinkle resistance, greaseproofness, water resistance, dimensional stability, high gas permeability, good electrical insulation properties, resistance to fogging and medium water vapor transmission. Although the term “Acetate Box” is still used, it is usually a reference to a PET clear box as Acetate is very rarely used to make plastic folding cartons.

What is Silk Screen Printing?

A Method in which ink is applied directly to the surface to be printed (substrate). The image to be printed is photographically transferred to a very fine fabric (the screen) such that the non-printing areas are blocked off and the fabric serves as a stencil. The ink is wiped across the screen to pass through the unblocked pores and reach the substrate. For each color to be printed a separate screen is prepared and the process is repeated. It is more suitable for short print runs of plastic boxes compared to offset printing. Also called serigraphy.

 What is Foil Stamping?

Foil stamping, (also known as foil application or Hot Stamping) is the application of metallic or pigmented foil on to a solid surface by application of a heated die onto foil, making it permanently adhere to the surface below leaving the design of the die. This decorating process is often used when a client wants their plastic folding box to stand out even more because of the shiny effect of the foil.

What is Off-Set Printing?

Offset printing technology uses plates, usually made from aluminum, which are used to transfer an image onto a rubber “blanket”, and then rolling that image onto a sheet of PET. It’s called offset because the ink is not transferred directly onto the paper. Offset printing is the best choice when larger quantities of plastic folding boxes are needed, and provides accurate color reproduction, and crisp, clean professional looking printing. Printing on the clear plastic box can be fully opaque or translucent to provide unique attractive packaging.

What is PUR?

PUR hot melt adhesives are significantly stronger than traditional hot melt adhesives. They can provide adhesive strengths greater than 1,000 lbs. PUR polymerizes when it comes into contact with the moisture in the air, allowing it to form stronger bonds after the curing process is complete.  Some PUR hot melt adhesives have fast set times and can form strong initial bonds in as little as 15 seconds. Most PUR adhesives require 24 hours before they are completely cured, and during this time their strength continues to increase from reactions with the moisture in the air. This means it is very important to expose the PUR adhesive to air once it is applied. PUR adhesives should be used in the manufacturing of plastic folding cartons to provide a strong permanent bond. The use of other types of hot melt glues on plastic folding cartons can lead to bond releasing particularly in extreme heat or cold conditions often encountered in the transport of the clearfold boxes.

What is Soft Score Creasing?

We use a proprietary soft score crease technology or we can also use a RF (radio frequency) score.  Our proprietary method creates an excellent, easy to fold score that allows the folds to bend easily and crisply yet maintains the structural integrity of the package design. The soft score allows for quick and easy manual assembly and also automated assembly of the transparent box

What is a Hybrid Box?

Hybrid boxes, or Duo-Cartons, utilize SBS paperboard and a semi-rigid clear PET plastic window insert. The addition of a panoramic, 3 sided semi-rigid window differentiates the package from competitors on the shelf and brings more visibility to the items inside the box. Printex Transparent Packaging has pick and place equipment to produce window boxes and full hybrid boxes where the bottom half may be sbs and the top half is clear PET.

What is a Window Box?

A window box is a sbs or corrugate folding carton with a clear window inserted to provide product visibility.

What are Ship Flat Tubes?

Ship Flat tubes are clear or printed PET sleeves that are assembled at the packaging or fulfilment facility. The tubes take on the shape of the caps when inserted, which can be round, oval or elliptical. The advantage of a ship flat tube is that they are much more cost effective for storage and shipping because they are flat until they are packed.

What is Auto Cartoning?

cartoning machine or cartoner, is a packaging machine that forms the flat carton. It may be hand filled or automatically filled with the product and then the cartoner will close and seal the folding carton.

What is Auto Erecting?

A cartoning machine which picks a single piece from stack of folded carton and erects it, fills with a product or bag of products or number of products horizontally through an open end and closes by tucking the end flaps of the carton or applying glue or adhesive. The product might be pushed in the carton either through the mechanical sleeve or by pressurized air. For many applications however, the products are inserted into the carton manually. This type of Cartoning machine is widely used for packaging foodstuffsconfectionerymedicinecosmetics, sundry goods, etc.

What does Opaque mean?

Opaque inks are solid colors that do not let light through so you can not see through them. On a clear folding box, achieving opacity is usually done by printing a white ink behind the desired color.

What does Translucent mean?

Translucent inks allow a certain amount of light through so you can see through them and see what is behind the color.  On transparent packaging, this allows the customer to see the product inside the package behind the graphics.

What is a gradient?

In the world of commercial printing the term “gradient” is used to describe a gradual blend of color or images from low to high values. Sometimes the term “color progression” is used instead of gradient. Gradients are color fills that gradually blend from one color to another or from a color to translucent to clear on transparent packaging.

What is a Die cut Insert?

A die cut insert is a sheet of PET or other material that is die cut and folded to hold a product inside the plastic folding box.

What is SBS?

SBS stands for Solid Bleached Sulfate. It is also referred to as paperboard, which a folding carton is often made from.

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