Infopoint

In addition to thorough preparation of the technical details of die-cut production, the correct selection of the adhesive layer with which the die-cuts will be equipped in the final application is also very important.

When choosing a suitable adhesive material, it is necessary to know the specification of the glued substrate (whether it is plastic PE, PP, PVC, metal, mineral material, glass, ABS, etc.), its surface (smooth, semi-rough, structured…), ambient conditions (interior, exterior – UV, weather conditions…), temperature conditions (exposure to low or high temperatures) and possibly other mechanical loads (vibrations, mechanical pressure on the joint…). It is also very important to know whether the applied cutouts will be permanently fixed to the substrate or will be easily removable from the surface without adhesive residue.

Acrylic adhesives

They are mostly highly resistant to aging and weathering – UV radiation, they also have high adhesive strength and a relatively high range of application temperatures, good initial and excellent final adhesive strength. Their advantage is also the relatively variable possibility of modifying the final properties, such as the right ratios between adhesion and cohesion. That is why there are hundreds of types of acrylic-based adhesive tapes. However, only a few of them can be removed from the surface without residue.

Rubber adhesives

They are adhesives made from synthetic and natural resins. Their biggest advantage is high initial tack, as well as good adhesive strength on most surfaces. The temperature resistance range of adhesive tapes with this adhesive is lower than that of those based on acrylic. Because they have low resistance to aging and UV radiation, they are particularly suitable for interior applications. With their high cohesion (internal strength), they are very suitable for applications with easy removal from the surface without leaving adhesive residues, i.e. in covering applications. Natural rubber adhesives are environmentally neutral.

Hotmelt adhesives

They are applied in a 100% state during production, i.e. they are not diluted with any solvent before application, they are only applied to various papers and membranes after heating, i.e. after a change in viscosity. After additional crosslinking, these adhesives can be set as highly temperature-resistant. In general, they show very high initial and permanent tack. However, they are only limitedly resistant to UV radiation, sensitive to temperature fluctuations and show reduced resistance to aging.

Silicone adhesives (polysiloxane)

They are particularly suitable for applications in extremely high temperature ranges (from -100°C to +350°C). Adhesive tapes with this adhesive are removable from surfaces even at high temperature loads. The tapes hold even on very complex surfaces, even on silicone ones. They are very resistant to weathering and chemicals, have extreme resistance to aging and a long service life. They are characterized by low initial adhesion, which increases significantly after 72 hours, and they also have high internal strength (cohesion), which allows the tape to be easily removed from the surface without adhesive residue.

They consist of a carrier (PP, PE, PET foil, textiles, special papers, laminates, etc.) covered on one side with an adhesive (acrylate, rubber adhesive, silicone adhesive, etc.). Depending on the type of carrier and the amount of adhesive applied, the adhesive layer may be additionally covered with siliconized protective paper or foil, which is removed before application. Depending on the purpose of use, we can distinguish, for example, masking adhesive tapes, which are mostly intended for short-term application (for a few minutes or hours), or for long-term masking work (up to several weeks). Fully functional adhesive tapes are also produced, which fulfill, for example, the tasks of airtight or waterproof connections in construction. With these functions, the tape remains permanently installed in one place after application for the entire service life of the structure. The adhesive layer can also perform a sealing function here. With single-sided adhesive tapes, the carrier is often more important than the adhesive layer (its UV resistance, tear resistance, elasticity, flexibility, stretchability, etc.).

They are composed of a siliconized covering material (silicone foils – PE, PP, PET – or silicone paper) and an adhesive layer, which can be reinforced for greater stability of the glued joint.

Transfer double-sided tapes

They consist only of an adhesive layer and a siliconized covering material, which means they are without reinforcement.

They are used for laminating PU foam materials or light textile materials, which are finally applied as self-adhesive. These tapes usually have a low adhesive layer from 30g to max. 90g/m2.

Double-sided tapes reinforced with fleece paper (Tissue tapes)

The reinforcement in this case is a very thin layer (usually up to 15 microns) of fleece paper, which has the task of stabilizing the adhesive layer and also ensures uniform distribution of the adhesive on both sides of this carrier. These tapes usually have smaller adhesive deposits (from 80g to max. 150 g/m2) and are used mainly for gluing paper (as splice tapes), textiles and the like.

Double-sided tapes reinforced with foil

The thickness of the carrier film (usually PET or BOPP) is from 12 microns to 30 microns.

These tapes are usually used for strong bonding, or the foil carrier serves to separate two types of adhesives with different adhesive properties. On one side, a weakly adhesive layer of adhesive and on the other side of the reinforcing foil, a strongly adhesive layer of adhesive. With these types of double-sided tapes, the grammage of the adhesive on each side of the carrier is often different. These are the most valuable tapes, which are also very suitable for the production of the so-called fingerlift version of tapes, which means that the tape has a non-adhesive part of the covering siliconized foil or paper on both edges (or only on one edge) for better application. A typical application of fingerlift tapes is the production of self-adhesive envelopes for sending textile goods, or the production of self-adhesive closures for cartons. The non-adhesive width of the siliconized foil or paper can be from 2.5 mm to 5 mm.

If you are interested in the production of fingerlift double-sided adhesive tapes, do not hesitate to contact us.

Double-sided tapes reinforced with mesh (fibers)

The tape carrier in this case consists of PES fibers (rectangularly or diagonally interwoven).

The tape produced in this way has a high adhesive coverage ranging from 60g/m2 to 260g/m2.

The advantage of these tapes is that they can also be used on structured and rough surfaces. A typical area of ​​application is, for example, the construction industry, where these tapes are also glued to mineral surfaces such as plaster, rough untreated wood surfaces, etc. The glued joint is very flexible and strong at the same time due to the use of fabric.

A special group of reinforcements consists of dense interweavings (they have the appearance of gauze), which are used for double-sided bonding of floor coverings, especially carpets.