Choice of water-based adhesive Application index Some packaging and printing enterprises reflect that some water-based adhesives will degummy soon after gluing; Viscosity is not stable, sometimes bond firmly, but sometimes not bond; It works well in hot weather, but it doesn't work in cold weather.In fact, this is due to the lack of understanding of water-based adhesive application indicators. The preparation method and production process of different types of water-based adhesives are different, so their chemical and physical properties are also different, that is, the application index is different.The most important application indexes of water-based adhesives in packaging and printing industry mainly include bond strength, high and low temperature resistance, moisture resistance and stickiness. The defects such as weak bond, degumming and brittle film often occur in practical application are basically caused by the above four application indicators. High cost performance Choose water-based adhesive, should be "quality first, price second" as the principle. However, some packaging and printing enterprises view is very one-sided, mistakenly think that the higher the price of water-based adhesive, the better the quality; Otherwise, the quality is worse. In fact, this is not absolute. When choosing water-based adhesives, we should first understand the characteristics of the processed products and choose the adhesives with higher cost performance, which is a reasonable way to choose and buy. Different products in different fields of application indicators are different processes, here is only a brief introduction, if you need to know more products in detail, you can contact our technical staff for consultation.

Water-based adhesive with high polymer, water-soluble resin as the main raw materials, water as the solvent, odor is small, environmental protection and non-toxic. With the continuous improvement of people's environmental awareness, water-based adhesives have become the mainstream of the market in recent years. In practical application, some packaging and printing manufacturers do not know enough about water-based adhesives, which causes some quality problems. Among them, the water-based adhesive "difficult to bond" problem is one of the technical bottlenecks plaguing many packaging printing enterprises.In order to let more packaging and printing enterprises understand water-based adhesive, the following will be elaborated from the characteristics and selection of water-based adhesive two aspects, I hope to help you. Characteristics of water-based adhesive Any kind of adhesive for substrate is not omnipotent, an adhesive is only suitable for bonding some or some kind of specific material. Such as Lamination Adhesive SA-2800X and Water Based Dry Laminating Adhesive SA-228 series water-based adhesives are mainly used for bonding between paper/paper, PET film/paper, BOPP film/paper, wood/paper and other substrates. Every kind of water-based adhesive has its "inherent characteristics". The inherent characteristics of water-based adhesive mainly include appearance (product appearance and film appearance), solid content, density, pH value, solvent ratio, opening time, high and low temperature resistance, initial viscosity, curing viscosity, etc. The bonding mode of water-based adhesive is generally divided into three kinds: machine adhesive, hand adhesive, machine adhesive and hand adhesive. Different bonding modes correspond to different inherent characteristics. For example, when using machine adhesive, water-based adhesive opening time is required to be short; When using hand adhesive, the water-based adhesive is required to open for a long time; When the film surface bonding, the adhesive film is flexible and the curing viscosity is high. For the analysis of the characteristics of water-based packaging adhesive, please see the next article.

I.Overview: Refilm process is widely used in all kinds of packaging, small to medicine box, artifact box, large to outer packing boxes and various product packaging.The current recoating technology includes precoating, dry recoating and wet recoating.Wet composite uses water-soluble adhesive cold paste process. Dry composite traditional composite film process is to apply solvent-based adhesive directly to BOPP film, and after drying in the drying channel, press with printed matter under heating and pressure. Due to the use of flammable and toxic solvents, it brings great harm to workers and the environment. And it's a fire hazard. The process generally adopts SBS one-component adhesive and polyurethane two-component adhesive.At present, due to the price rise of solvents and related raw materials, resulting in increased production and use costs, basically unprofitable. Water-based hot recompound is also called water-based dry compound adhesive, dry laminating adhesive, dry laminating adhesive, dry laminating adhesive and so on.Special use of traditional  Dry laminating machine or water-based dry reproducing machine, dry reproducing machine, instead of Solvent-based laminating adhesive, suitable for BOPP, PET film and a variety of color printing paper high speed bonding. ANHUI Sinograce Chemical water-based dry film adhesive is a kind of high solid content, low viscosity self-crosslinking water-based adhesive, long-term external production technology formula. The product is non-toxic in water, will not have flammable, explosive danger, low odor, solvent-free, safe to use, environmental protection, stable product performance, low cost, excellent quality, the traditional use of oil coating adhesive manufacturers using the original equipment can use the environmentally friendly water-based coating products II.Two, product features: 1, The product solid content is high, adapt to the requirements of dry composite rapid drying (drying road), the highest machine speed can reach 45m/min; 2, Because the emulsion is self-crosslinked, its macromolecules automatically crosslinked when composite, so the peeling strength is high; 3, High quality, excellent comprehensive performance, can cover (cover) powder, composite product brightness is good, can be indentation, embossing, concave and convex, no bubbles, good toughness, smooth and beautiful, wet do not open glue; 4.Good storage stability, good freezing resistance in winter, storage period of 6 months; 5.The product is a water-based adhesive, environmentally friendly, solvent-free, 6.Small amount of glue, low use cost, is a new product to replace the traditional oil glue. III. Product quality index 1.Appearance:Milky liquid with blue fluorescence 2.Product performance conforms to the following table: Item index Solid content % 50±2 pH 5~7 Viscosity mPa.s ≥100 Peel strength Greater than ink affinity to paper or paper body strength Our company produces a safer Water Based Lamination Adhesive,Welcome to cons...

1. the reason why non-stick pot is not stick, all rely on the coating material on the surface of the pot. These coating materials have good lubricity, small friction coefficient, small surface tension, food is not easy to stick to the pot.Two types of coating materials are commonly used for nonstick pans: fluoropolymers, such as teflon, and silicone polymers. Non-stick wok use PFOA-free high quality non-stick coating, safe and non-toxic; 2.The upper limit of the safe use of non-stick pot temperature is 260℃, beyond this temperature, non-stick coating may decompose and produce some toxic gases, and the general smoke temperature of cooking oil is about 200℃, less than the safety limit, so it is relatively safe; 3.non-stick pot good thermal conductivity, the use of small and medium fire can achieve the best cooking effect. At present, our company's non stick coating and water based ptfe coating and Ceramic Series coating, has been put on the market, the market feedback is good, the performance is excellent, fully able to meet the complex needs of customers of various packaging structures. Description Water based Three-layer Marble-Coating (Starry Sky)PF-612 is Water based Two-layer Marble-Coating (Starry Sky). It is widely applied to internal coating of non-stick kitchenware such as aluminum-made frying pans, woks, stockpots, electric stewpots, electric bake wares and cake molds. Type Water based marble-coating Key features -Eco-friendly and PFOA free -Showing the effect of natural marble -Excellent chemical resistance and abrasive resistance -Excellent and lasting non-stick performance, easy to clean Our company produces a safer pfte nonstick coating for use on nonstick pans,Welcome to consult