Knowledge of hot melt coating machine:
1. Hot-melt adhesive coating machine: It is a kind of polymer that does not need solvent, no water content, and 100% solid fusible polymer. It is a solid at room temperature, and it melts to a certain degree and becomes fluid. A certain viscous liquid adhesive, coated on a substrate, usually containing composite parts, can be a device that combines another substrate with a gummed substrate.
2. Advantages of the process: There is no need for drying equipment, low energy consumption: no solvent (100% solid content of hot melt adhesive) is not polluted, and the operator does not come into contact with a large amount of formaldehyde due to cleaning of the remaining glue. Compared with the traditional solvent-based and water-soluble adhesives, the following Arabic numerals have an enviable advantage compared to the professional manufacturing of hot-melt adhesive coating machines, and effectively solve the inherent drawbacks of traditional processes. The ideal production tool for fabric replacement.
3. Solvent-based and water-based adhesives require oven curing (or may require renovating existing ovens), occupying more plant space, and increasing plant energy consumption; more waste water and sludge will be generated; Production requirements are more stringent; the disadvantages of solvent glue are obvious, and it is very environmentally unfriendly (most of the solvents are harmful). Solvent-based adhesives cause serious environmental pollution. With the improvement of people's environmental awareness and the establishment and improvement of relevant laws, the use of solvent-based adhesives is declining at a certain rate every year. Water-based adhesives have disadvantages such as poor water resistance, poor electrical characteristics, long drying time, and large energy consumption, and their applications are also declining at a certain rate every year. Hot-melt adhesives have the advantages of stable performance, high material utilization rate, high production speed, high yield, small equipment footprint, and low investment, and have gradually replaced solvent-based adhesives.
4, the characteristics of hot-melt adhesives: The main component of hot-melt adhesives, that is, the basic resin is ethylene and vinyl acetate copolymers made under high pressure, and then with tackifiers, viscosity modifiers, antioxidants made of hot-melt adhesives . 1) It is usually a solid at room temperature and melts to a liquid when heated to a certain degree. Once cooled to below the melting point, it quickly becomes a solid. 2) It has fast curing, low pollution and strong adhesion. The adhesive layer has certain flexibility, hardness, and certain toughness; 3) The adhesive is applied on the adherend and cooled and solidified, and can be reheated and melted. 4) re-adhesive and then bonded to the adherend, with a certain degree of re-adhesion; 5) When used, as long as the hot melt to melt into the desired liquid, and smear on the adhered object, 6) Bonding and curing can be completed within a few seconds after pressing, and hardening and cooling and drying can be achieved within a few minutes. 7) Because the product itself is solid, easy to pack, transport and store; 8) Solvent-free, non-polluting, non-toxic type; 9) And the advantages of simple production process, high added value, viscosity and strength, fast speed, etc. Favored. 10) Hot-melt adhesives have the advantages of stable performance, high material utilization rate, high production speed, and high yield rate. 11) Small footprint and small investment.
The slitting blade for corrugated cardboard is a crucial tool utilized in the packaging and manufacturing industries. This specialized blade is designed to make precise cuts along the length of corrugated cardboard, facilitating various operations such as resizing and creating custom-sized pieces.
The slitting blade is typically made of high-quality, durable materials like steel or carbide. These materials ensure longevity and the ability to withstand the demanding cutting requirements of corrugated cardboard. The blade is engineered with a sharp cutting edge that enables efficient and accurate slitting, minimizing the risk of tearing or damaging the cardboard.
The slitting blade is commonly used in the packaging and manufacturing industries to create custom-sized cardboard pieces and facilitate the production of corrugated products. Its design ensures clean and accurate cuts, allowing for smooth and seamless processing of corrugated cardboard materials.
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