What are the characteristics of the coating roller rubber?

　　Coating Roller AdhesiveThe technology is widely used in various packaging, from medicine boxes, craft boxes to outer packaging boxes and various product packaging. The coating roller adhesive process includes pre-coating, dry composite, and wet composite. Among them, pre-coated films are rarely used due to high costs. Water-soluble adhesive cold bonding technology is used for wet composite and dry composite. The traditional lamination process involves directly applying solvent-based adhesives to BOPP films. After drying in the drying channel, it is pressed together with printed materials under heat and pressure. The use of flammable and toxic solvents poses great harm to workers and the environment, and is highly likely to cause fires.

　　The process generally uses SBS single-component adhesives and polyurethane two-component adhesives. Due to the rise in prices of solvents and related raw materials, production and usage costs have increased, making it basically unprofitable. Water-based thermal lamination adhesive, also known as water-based dry lamination adhesive, dry lamination adhesive, etc., is specifically designed for traditional dry lamination machines that use oily lamination adhesives or water-based dry lamination machines, replacing solvent-based lamination adhesives. It is suitable for high-speed bonding of BOPP and PET films with various colored printing papers. Coating roller adhesive is a high solid content, low viscosity self-crosslinking water-based adhesive. It can provide long-term production technology and offer on-site technical guidance in factories.Coating Roller AdhesiveIt is water-based, non-toxic, with no flammable or explosive hazards, low odor, solvent-free, safe and environmentally friendly, with stable product performance, low cost, and high quality. It is an environmentally friendly water-based composite product that can be used by manufacturers traditionally using oily composite adhesives.

　　Characteristics of Coating Roller Adhesive:

　　1. Coating roller adhesive has a high solid content, meeting the requirements for quick drying of dry mixing (drying through the drying channel), with a maximum machine speed of up to 45m/min;

　　2. Since the emulsion is self-crosslinking, its macromolecules automatically crosslink during bonding, resulting in high peel strength.

　　3. Coating roller adhesive is of high quality, with excellent comprehensive performance, capable of covering (coating) powder. The formulated product has good brightness, embossing, debossing, no bubbles, good toughness, smooth and beautiful, and does not delaminate when wet;

　　4. The product has good storage stability, excellent frost resistance in winter, and a storage period of 6 months;

　　5.Coating Roller AdhesiveIt is a water-based adhesive, environmentally friendly, solvent-free, non-flammable, non-explosive, and safe to use;

　　6. It is a new product that replaces traditional oil-based adhesives.

　　Preparation Process of Coating Roller Adhesive:

　　(1) Preparation of monomer pre-emulsion: Add BA, St, AA, HPA, crosslinking agent (NMAM), part of the emulsifier, and softened water to the pre-emulsification device, stirring several times. When the system is a uniform milky white and the viscosity exceeds 150 MPa·s, it is considered fully emulsified.

　　(2) Adding substrate and seed emulsion: Add emulsifier, APS (initiator), ABC, and softened water to the reactor, heat to 50-70℃, and add 3% pre-emulsion as seed emulsion, heating for 30-45 minutes to 85-90℃.

　　(3) Coating roller adhesive reaction process: Control the temperature at 85~90℃, while dripping the residual pre-emulsion and initiator, completing the entire process within 2 hours. Maintain the reaction at 85-90℃ for 1.5 hours.

　　(4) After elimination: Add tbtp solution at 75℃, and after 5-10 minutes, add SFS solution; keep cooling to below 40℃, adjust the pH to 7.0-7.2 with ammonia water, and filter the discharge with 300 mesh (about 48 microns).