Abstract: With the rapid economic development, customers have higher and higher requirements for product packaging, and functional coatings have promoted a technological innovation in the coating of corrugated boxes in the United States. Today, China, which is aiming for a rapid economic development, further promotes the use of new functional coatings and strives to promote the development of the packaging industry.
Keywords: functional coating, seed-like paper, packaging requirements, technological innovation, packaging industry, corrugated paper, economic customers
The paper coatings used today generally have the following properties:
Waterproof paper coating
The traditional waterproof carton adopts waxing. After the waxing, the paperboard will definitely affect the color of the paper. The gray style will not be so colorful and affect the final packaging style. In addition, waxing must increase the weight of the carton and affect the degree of recovery. Michem coat series water-based paints not only have a small amount of coating, but also basically do not affect the reprint ability and adhesiveness of the carton, making our carton beautiful and strong. Some of these waterproof coated papers can be made into water tanks, and goldfish can be kept for 7 days. The cartons are still strong and impermeable.
Corrugated Reinforced Coatings
This is a completely new field of application for waterborne paper coatings. In foreign countries, most corrugated cartons are single-ply, but at present in China, most cardboards use cardboard to increase the strength of cartons. With corrugated reinforcement coatings, the United States Fibermax series uses special high-molecular polymers to act on the pulp fibers to enhance carton strength. We can not only use low-weight paper, but also reduce the number of paperboard turns. The degree of reinforcement of the corrugated reinforcement coating is related to the type of paper and the fiber properties.
Moisture-proof coating
Waterproof coatings prevent the penetration of water but often do not prevent the passage of water vapor. For food preservation, we not only require water barriers, but also prevent the penetration of water vapor. At present, the domestic use of Laminated paper is generally used for packaging, and the use of Vapo rcoaC's moisture-proof coating not only simplifies the packaging paper production process, but also can be 100% recovery, reduce packaging costs, but also more environmentally friendly. Exquisite fresh tea leaves are packaged with damp-proof paint so that the tea is still breathing in the bag. That is, paper is like the skin of our body.
Grease-resistant coatings
When we bought a pizza and got it into our hands, the oil stain on the box had penetrated and we had even found that the pizza had stuck to the box. When our carton is coated with oil-resistant paint, the pizza that the customer sees is completely different, fresh and complete, and extremely appetizing. Today, developed countries in Europe and America have long used grease-resistant coated paper for food packaging, such as packaging for meat, poultry and snacks, and chocolate. The grease-free coatings from Noma rTM and Michem 50 series not only solve the problem of grease, but also satisfy the packaging of foods just released. Of course, we also have products used in the hardware parts packaging industry.
Wear-resistant coatings
The wear-resistant paper coating is designed to reduce the friction of goods during transportation. In China, foams and similar products are generally used nowadays, especially in the home appliance industry. However, in addition to environmental issues, similar products must use a variety of materials at the same time for key manufacturers. The US Norma's wear-resistant coatings reduce the paper's original hardness and form a special coating structure on the surface of the paper, reducing the friction between the original paper and the surface of the home appliance. Protect the surface of the home appliance intact. Of course, wear-resistant coatings far exceed these functions.
Special coating
The special coatings used today are the following: corrosion-resistant coatings, fire-retardant coatings, anti-static coatings, release coatings, etc.
◠Corrosion-resistant coatings, corrosion-resistant coatings are mainly used to protect steel, iron, copper and other metal parts products. After coating the surface of the carton, the US Rustban® series can effectively prevent the oxidation of the packaging metal so that the packaged metal parts will not be rusted and tarnished. Many manufacturers can make paper have anti-corrosion properties in accordance with the needs of customers, and prevent oil fittings from leaking.
■Fireproof coating, we all know that corrugated paper is a kind of flammable product. In some occasions, we have certain fireproof requirements for packaging materials. At this time we can use fireproof coating. The US Pyrobreak E× series fireproof coating, in some cases, can Effectively stop the carton from burning. If the fire-retardant coating of paper can pass the test of ASTM E-162, ASTM E-84, TAPPl 461 and NFPA3O, it is considered as a coating suitable for production use.
â– Anti-static coating, in the packaging of some electronic components, there are generally anti-static requirements. At present, the packaging of these products in China is mainly used anti-static plastic bags, and then use carton or plastic box for packaging and transportation. In terms of operation, there are many processes and the cost of packaging is relatively high. After the United States Staticban series anti-static coating is applied to the corrugated box, the surface of the carton has the function of conduction and electrolysis, which can effectively protect the electronic components from electrostatic and other charge hazards. Packaging electronic components in a carton or carton coated with anti-static coating can reduce the number of steps in the packaging process and at the same time, reduce the cost of packaging materials.
â– In addition to being non-tacky, release coatings can also satisfy the storage of products such as asphalt and rubber, which also satisfy heat resistance. The hot asphalt is poured into a paper bag coated with a paint from Michael's door release, and after it cools, it does not stick to the paper bag.
Hu Chunhong Mai Kemen (Asia) Co., Ltd. Gong Yao International Trading (Shanghai) Co., Ltd. (Mikemen China regional agents)
Source: Global Corrugated Industry
