Due to the printing speed is too fast, add too much, high hardness of tap water, ink solvent surface tension size is different, excessive circulation stirring and other reasons lead to the production of foam, ink texture is uniform to ensure printing quality, bubble is destroyed uniformity, will reduce production efficiency.After the foam overflow in the tank, the foam flows into the roller, wet the printing paper, and the printing press cannot work normally. Ink printing industry use common problems 1.Ink texture uniform to ensure printing quality, bubbles that destroy the uniformity 2.Causes the printing surface defect, causes the printing paper the pattern cannot print the complete 3.After the foam overflow in the tank, the foam flows into the roller, wet the printing paper, and the printing press cannot work normally 4.Will the original performance be lost after adding antifoaming agent (such as insufficient viscosity, late fading) 5.The dispersion is not good, the solubility is not strong, and the stock solution is not very good Will it change the original color of the product

Compared with traditional glue, water-based coated glue is made of imported raw materials, with high solid content, low viscosity, good process applicability, strong adhesive force, non-toxic and other advantages are suitable for aluminum foil (OPA), pretreated polyethylene (HDPE,LDPE), polypropylene (OPP, CPP), polyester (PET), polyamide (PA,ONY) film, A two-component solvent-based polyurethane adhesive coated with metal film and cellophane. Use can enhance the brightness of printed matter, increase the light resistance of printed ink, increase the ability of ink layer to prevent heat and moisture, play a role in protecting blot and beautifying products. The water-based laminating glue has environmental protection and no pollution, so that the high quality of waterproof performance makes it widely trusted by consumers.

Vacuum suction plastic is a kind of waterborne polyurethane adhesive, because it needs vacuum suction plastic machine to vacuum suction plastic so it is called vacuum suction plastic.It is widely used in the vacuum blister thermal composite of visible parts, such as polyvinyl chloride (PVC) and other soft materials and density board, particle board, wood and other vacuum blister molding, mainly used in the vacuum blister molding of wooden doors, cabinets, sound box board, computer desk, car console, etc. The PVC film in the heating softening process and after spraying the density fiberboard close to, the use of vacuum to remove the PVC film and density board film between the air, relying on atmospheric pressure to make the PVC film tightly pasted on the density fiberboard, this process is called vacuum blister.The biggest feature of this process is no need to spray paint or paint, is a paint-free process.In addition, it can also cover concave and convex grooves, curved edges, hollow carving pieces, which are incomparable to other processes.The adhesive used for vacuum blister is vacuum blister, which is mainly waterborne polyurethane adhesive at present. Vacuum suction plastic in performance requirements, good flow, no pitting surface after plastic; High solid content, fast drying; The initial viscosity is good, in the groove, the edge of the special requirements of the initial adhesion of plastic suction is good; Good heat aging performance; The activation temperature is low, the activation temperature is in the range of 55-65 degrees, the temperature is too high, the PVC film is easy to perforate.

Water-based adhesives have various kinds and different properties, which can adapt to the trend of environmental protection. The important properties of water-based adhesive are: solid content (non-volatile mass percentage), viscosity, emulsifier or surfactant total agent dosage, surface tension, pH value, particle size and distribution, film forming temperature, mechanical stability, etc.Compared with solvent-based adhesives, water-based adhesives have the following characteristics： 1.No solvent or containing a small amount of solvent, harmless to people and the environment, in line with environmental protection requirements. 2.The distribution of solid content is wide, ranging from 20% to 50%. 3.Water-based adhesives have good brushability, spraying requires less pumping pressure than solvent-based adhesives, and water-based adhesives can be cleaned with water before drying. However, water-based adhesives also have some disadvantages. 1.Because the presence of water makes the fabric shrink or the paper warp or wrinkle, it will also cause corrosion and rust problems in steel application and storage facilities. 2.In most cases, water-based adhesives must be prevented from freezing during shipment and storage, which may lead to container damage or product deterioration. 3.The evaporation of water is slow, so that the glue curing is slow or the drying equipment.The coating performance of water-based adhesives is poor, and the wettability of composite substrates is not good, resulting in low adhesion. Although there is some slow drying of water-based adhesives and there is a gap between adhesive and solvent based adhesives, we believe that through continuous research and efforts, we can make water-based products not only an environmental protection product, but also a high-performance product.