Sealing tape is also called Bopp tape, packaging tape, which is in the original film BOPP based on the development. After a high-voltage corona after a rough surface, and then apply glue and divided into strips and small rolls, and this is often used every day. One of the adhesive tape inside the glue belongs to acrylic resin glue, which is often referred to pressure-sensitive adhesive, which is the main ingredient of tincture. Because tincture grease is a kind of macromolecule active material, and molecular activity has certain influence and temperature has certain relationship, so the amount of tincture grease in the glue will directly affect the use of tape. The initial viscosity of ordinary sealing tape is not less than 13(steel ball) , the thickness of adhesive tape is generally 22 microns, in line with the standard thickness.
Sealing tape is generally composed of substrates and other auxiliary materials, including curing agents, toughening agents, diluents, fillers, coupling agents, and so on, and some adhesives may not contain so many ingredients, this mainly depends on the performance of adhesive and use:
1, Substrate: the most basic component of the tape is the substrate component, and this is also a transparent tape component.
2. Hardener: when it comes to hardeners, everyone should know that this is a material that hardens the base material into a solid, and that this component is the main component of the binder.
3. Toughening agent: tape inside the addition of toughening agent can improve the toughness of the adhesive layer, can play an impact, anti-stripping, anti-bending properties.
4. Diluent: diluent is also called solvent, diluent can reduce the viscosity of glue, easy to use, but also can improve the glue wettability and fluidity.
5. Filler: in the adhesive filler can improve the mechanical properties of the adhesive, and this is one of the components of transparent tape.
Sealing tape is an indispensable product in any enterprise and personal life. Due to the low technology content in China and the large number of domestic manufacturers, the products on the market are not uniform, small series to you summed up a few on the identification of the quality of sealing tape methods:
1, In fact, distinguish the quality of sealing tape there are two standards, one is the first adhesive force, the other is the retention force, the two are inversely proportional.
2, The initial adhesive tape less than 10 adhesive tape, such as stationery tape, ordinary promotional bookbinding tape products inside the less amount of adhesive coating, usually the initial adhesive force of sealing tape at 15 to 20 microns or so, the thickness of this tape is usually 22-28 microns, like this to meet the standard thickness of tape.
3. At present, most of the adhesive tape on the market is mixed with impurities, so the thickness increases. In order to cover impurities, glue is also mixed with toner, so transparent tape is egg yolk and light green, this type of tape is of average quality.
Post time: Sep-09-2022