Cartons gravure preprinting process four major requirements for printing ink

With the economic development of our country. Some well-known brand products have risen one after another. Especially beer, dairy products, beverage industry. Their products are sold nationwide and even exported overseas. In order to meet the logistics requirements, these companies are increasingly demanding high quality cartons. The carton gravure preprinting process can greatly improve the quality of the carton and the efficiency of the production of the carton. Therefore, it has attracted the attention of many carton manufacturers in recent years.

1. Requires ink to have good printability

Due to the increasing demand of the manufacturers for the advertising role of the carton, the design of the carton pattern is getting more and more exquisite, so a large number of screens, color printing, and large-scale printing are adopted. Some patterns have been fine to 5% of shallow mesh transitions. For on-site layout, it requires full color and uniform ink. At present, China's market is widely used or oily gravure ink. The performance of water-based gravure inks is not good enough for printability. It is also difficult to meet the requirements of carton customers.

2. Require ink to meet environmental protection requirements

Although China has a large number of oil-based gravure inks with low environmental protection factors in the pre-printing of cartons. However, alcohol-soluble, benzene-free inks that meet environmental requirements have gradually become mainstream. Major printing companies and ink production plants have also conducted useful explorations of the promotion of water-based inks. In addition to solvent environmental protection requirements. For heavy metals in ink. Toxic substances, carcinogen content also put forward strict requirements. Such as the dry film of the ink heavy metal content restrictions. Internationally accepted standards are EU-EN-71 and US-ASTM-F963-96a.

3. Requirements of ink with heat and friction resistance

Corrugated board production line compaction drying Channel length 2O ~ 100m. Drying temperature is 17O ~ 200 °C. Printing surface at high pressure. The time to drag 20-1OOm under high temperature conditions is about 10 seconds. This requires that the ink and varnish must have excellent heat and abrasion resistance. If the ink and varnish selected resin is not heat-resistant and wear-resistant. Softening occurred. Stickiness or ink discoloration and hair growth can lead to waste products.

4. Requirements ink layer has a suitable surface friction coefficient

Carton manufacturers use the inspection method is: the cartons filled with the product is placed horizontally on an active board. Then increase the end of the board with a certain linear speed. When the angle of the fixed end is less than or equal to 24°, the carton cannot slide. When the angle of the fixed end is greater than or equal to 30°, the carton must be slid, and it can slide or be stationary in a range of more than 24° and less than 3O°. It is not difficult to just wear the ink layer. This can be achieved by adding a lot of wear-resistant additives to the ink. However, requiring the surface of the carton to have a suitable coefficient of friction is quite difficult for the ink manufacturing industry.

Cartons gravure preprint required for a variety of equipment, inks, Varnish have been made. Demax Ink Chemical Co., Ltd. looks forward to working with more carton manufacturers. Bigger, stronger paper box preprinted this market. To achieve everyone's win-win situation.