We can use double-sided tape in all major industries. The results we may use in different occasions are not necessarily satisfactory. Why are there such big gaps in double-sided tape?
The main reason for double-sided tape is that the glue used is different. The common glue moisture is double-sided adhesive glue and water glue, hot-melt pressure-sensitive adhesive, how to distinguish double-sided glue glue and water glue, hot melt Pressure-sensitive adhesives? Now let's briefly describe their characteristics:
Double-sided adhesive glue is made by emulsifying acrylic acid or polyurethane resin through special emulsifying equipment with water as solvent. Its biggest advantages are: variety, environmental protection, low price, there are many coatings are now using water-soluble glue, such as: general water-soluble PA, water-soluble PU and film adhesive, oily wax, scratch paste Functional paste. Water solubility, with its functionality, environmental protection, and low price, will be the direction of future coatings. Disadvantages are poor film formation, poor washing fastness, PU can not be glued hot air glue, should not fit sponge, foam and other foam products;
The double-sided rubber adhesive is an oily solvent (toluene, DMF, butanone, etc.) as a solvent and is dissolved in acrylic or polyurethane. Its advantages are good film formation and good fastness. PU can be glued with hot wind glue, which is the commonly used coating glue. The disadvantage is that due to the use of oily solvents, there is a lack of environmental protection. In particular, the current rise in oil prices has led to soaring oil-based solvent prices. Most of the coating adhesives use relatively poor oil solvents due to their high cost. Environmental protection is not up to standard. In addition, with the further improvement of environmental protection standards in various countries, environmental protection requirements for coating adhesives are getting higher and higher.
Double-sided adhesive hot-melt pressure-sensitive adhesive is a kind of pressure-sensitive adhesive, which is mainly made of synthetic rubber, resin, rubber oil, etc., mixed and heated to melt and then coated on a base material such as cotton paper, cloth or plastic film. A new type of adhesive tape, its low cost is its biggest advantage, the defect is that the viscosity is more affected by temperature. Mainly used for all kinds of sealing, sealing, paper packaging, beverage bottle labels, sealing aluminum foil, flexible packaging and other packaging; environmental protection paper pallets, etc., to adapt to all kinds of materials.
Therefore, we must not only look at the price when buying double-sided tape, but we must know the environment in which we use it and choose the type of double-sided adhesive that is suitable for our business use.