WHICH PRINTED ADHESIVE TAPE TO CHOOSE - BOPP OR PVC?
What is actually the difference between an adhesive tape made of polypropylene (PP) and a tape made of PVC? And if you know the difference, can you recognize the tapes, too?
Why is this important? Because these tapes have fundamental qualitative differences. For a regular consumer, there is probably not much point in considering this, but for you as a professional consignor, the selection of the right adhesive tape is fundamental.
PVC adhesive tapes:
PVC stands for polyvinyl chloride and it is the backing material for glue – natural rubber. It is highly resistant, flexible and especially tear-resistant. The tape unrolls evenly and quietly. It is suitable for taping up cardboards with a heavy consignment or other heavy objects (carpets, etc.) or it can also be used for marking specific zones on concrete floor. Rubber adhesive adheres well to all types of cardboard as well as to other materials. Here you can find a selection of PVC tapes in our e-shop.
BOPP adhesive tapes:
PP is the abbreviation for polypropylene. An adhesive tape made of this material is slightly cheaper than that made of PVC. It is ideal for light to medium-weight consignments. It is high tack and firm, but they is not suitable for temperatures that are too high or too low. If you have an unheated or non-air-conditioned warehouse, the tape may melt. Three different adhesives are used for polypropylene tapes – the so-called hot melt adhesive (synthetic rubber), natural rubber and acrylate adhesive. The adhesive also influences the loudness of tape unrolling. A vast majority of these tapes is louder than PVC tapes. There are also special so-called low-noise tapes with natural rubber, which unroll as quietly as PVC tapes.
Adhesive tapes made of these materials are not recognizable at first sight, but there are several simple tricks for determining the material.
A test with a ballpoint pen
Unroll a piece of the tape and stick it for example onto a desk. Tighten the tape and then pierce it with the ballpoint pen or another pointed object.
- If the adhesive tape is torn or tears off completely, it is a PP – polypropylene tape.
- If only a hole is made, it is PVC.
You can also carry out a second test – a stretch test
Unwind a piece of adhesive tape and stretch it. With increasing pressure, a PVC tape will gain a milky colour, a PP tape will maintain its original colour. It is that simple. If you have any other ideas for how to identify the material, please write to us. We are looking forward to hearing from you.
It is, of course, possible to say that it is only an adhesive tape and for a normal user, the various differences are unimportant. But for a professional, who deals with the preparation of consignments or or with organising distribution on daily basis, these questions are relatively essential, so that everything would function perfectly.
Its primary use is in packaging (plastic bags, plastic films, geomembranes, containers including bottles, etc.).
Compared to PVC, PE (polyethylene) and PP (polypropylene) contain less problematic ingredients, they have reduced potential for leachate formation and considerably lower potential for dioxin formation in case of fire, and they are linked to lesser technical problems and costs during recycling.
Polypropylene (PP) is an important thermoplastic material, which only consists of carbon and hydrogen. PE and PP plastic materials are universal and cheap and can be used as material alternatives for nearly all applications made of PVC. Polypropylene is easy to shape and can be used for a wide range of products.
Polypropylene foils are being drawn and are thus far more stable. For this purpose, the foil is conveyed across cylinders, which accelerate in the machine direction.
Sandwich print, indelible print, print under adhesive, durable print between tape and adhesive - these are some names of the technology of this print. You corporate print is protected between the foil and the adhesive and cannot be deleted.
Direct colours are defined in colour swatches and thus precise identification of a specific colour is achieved. The Pantone swatches, which were introduced in the year 1963, have undergone long development and now the entire library contains 1761 colours in chromatic order. They are a colour standard that is recognised worldwide.
Due to positive reactions of our customers to non-printed tapes with the hot melt adhesive, we are extending the use of this adhesive to printed tapes as well. When ordering a printed tape, you can newly choose between the classic acrylate adhesive or hot melt adhesive.
Polyvinyl chloride (PVC) is the third most-used plastic material on Earth, right after polyethylene and polypropylene. It was first synthesized in the year 1935. It is insoluble in water, oils or concentrated inorganic acids and bases.
All adhesive tapes age and change their properties. These are consumer goods, which should also be taken into account when planning a specific amount to order on consignment.
For a common user, who tapes up one to two packages per month, or even less, the loudness of the adhesive tape in unrolling is not an essential question. But for professionals, who manage a distribution warehouse of a company that sends several dozen or even hundreds of packages a day, which may be one of the key questions when selecting the type of adhesive tapes.
Besides the manual use of adhesive tapes, it is also possible to use them in machine packaging of cardboard boxes.
Při potisku lepicích pásek se v zásadě řeší potisk fólie z různých materiálů. Nejběžnější je technologie flexotisku a při volbě potisku je především rozhodující objem zakázky. Pro velké zakázky se nejdříve potiskne samotná fólie a teprve na tuto potištěnou fólii se nanáší zvolené lepidlo. U malých zakázek potištěných pásek je materiál již připravený a nařezaný do menších rolí a poté se nanáší potisk a řežou se konečné role pro ruční použití nebo role se strojním návinem pro balicí stroje.