express bag hot melt

Hot melt adhesive for bottle and package sticker, such as Coca-Cola, Wahaha and other plastic bottles of outsourcing paper bonding, bonding material is polyethylene plastic bottles (PET, PE, PP, etc.) and PP, PE plastic film; Most of the construction process is strip construction, need to achieve good temperature resistance, smooth construction requirements, special customers will also pay attention to color requirements, generally choose colorless transparent as the best.

The so-called good temperature resistance requirements refer to: 1: these bottles are often transported through containers, the temperature in the transportation process can reach 60-70 degrees Celsius, the glue in this environment must not flow, do not lose sticky, no overflow glue; Second: most bottles will be refrigerated process, at this time the label glue needs to be not brittle, not degumming; Therefore, the Hot Melt Pressure Sensitive Adhesive for the label must meet the requirements of high and low temperature at the same time;
In terms of construction, the label glue making process is a relatively fine process, making time fast, less gram weight, and small cross-section; Hot melt adhesive in the construction to achieve fluency needs to achieve several points: first, the melt viscosity of the glue is low, that is, the glue is thinner; The second is not drawing, in the rapid construction of the pipeline once the glue drawing will affect the beauty and die and the service life of the equipment, the cost of cleaning will also increase;
Therefore, customers need to pay attention to the following in the process of using labeled binding agent: reasonable construction temperature, the construction temperature of the glue with low melting viscosity needs to be properly adjusted and reduced, and the temperature of the die head should be appropriately increased to reduce the phenomenon of wire drawing; The adjustment of the speed of the assembly line and the choice of gram weight, too fast glue will lead to less degumming products, too slow will lead to too much gram weight overflow.