Application of Corrugated Carton Adhesive Innovation Technology (1)

Application of High-tech Paste Automatic Control System

(a) The high-tech patented paste automatic control system of SERCO in the Netherlands is a revolutionary technology for making and using paste. This system is not only a problem that will be manually changed to automatic control, but a pulp system and a pulping method that are completely different from the traditional ones in the production and use of the paste. The reason why the SERCO paste control system of the Netherlands is welcomed by users of carton plants in various countries is that the system really solves the problem of the production and use of paste in the production of corrugated cardboard, and it is targeted to the degumming, cracking and warping phenomenon of cardboard. The one-on-one cracks were followed, the waste paperboard was greatly reduced, the average speed was increased by 15%, and the starch consumption was reduced by 20%. In addition, the deterioration of the paste is also reduced to zero. The more important point is that from the actual use of the customer, all of these effects were achieved without increasing operating costs and relying on additives. Reduction of waste paper, reduction of production and operating costs, increase in the output of cardboard due to the increase in the speed of corrugating machines, improvement in printing quality due to the improvement in the warping of boards, improvement in printing speed, and improvement in the speed of die-cutting and slot-making All are real benefits for users of SERCO Paste Systems.

The Dutch SERCO Paste Control System has a number of technical patents in the manufacture and use of traditional corrugating machine pastes. Only ordinary starch, no corn flour or tapioca, the system can control the paste viscosity error within ± 2 seconds. Most prominently, the American firm Ringwood and Dutch SERCO cooperated to change the old method of paste that traditionally used the same kind of paste to cope with different applications on the corrugating machine. In a corrugating machine, pastes of different properties are applied depending on the temperature and the heating condition of the pulp spot. The viscosity, gelation temperature, and dry particle ratio of the pastes at the different application sites are all made with different formulations depending on actual conditions. In addition, using advanced control technology, the nature of the paste can also be changed according to starch changes, paper changes. It is not an easy task to control various pastes under various conditions, but SERCO's advanced control technology in the Netherlands has made this simple and easy to avoid possible human misuse and paste production. The process becomes both reliable and simple, that is, it saves a great deal of operating costs and it is extremely effective in improving the quantity and output of tepal board.

(b) Serco Ringwood's corrugated paste control system is widely used internationally. Despite the introduction of the Chinese market soon, it has also settled in carton factories in many areas in China, and has been well received by users.

Using paste automatic control system, essentially solving the problem of production and use of paste in corrugated board production. The waste paperboard was greatly reduced, the average speed was increased by 15%, and the starch consumption was reduced by 20%. The paste viscosity error was controlled within ±2 seconds, and the paste was degraded and wasted to zero. To this end, the use of computer management systems, saving the use of raw materials, paste control and temperature control, little investment. However, the saved money is at least 3%-5% more than manual labor.

Application of Nanotechnology in Adhesives

Adhesives and sealants are important products in the packaging field. They are important products that consume large quantities and are widely used, and require optimal conditions for viscosity, fluidity, and curing speed. At present, domestic high-grade sealants and adhesives rely on imports.

1. Nano SiO has been added as an additive to adhesives and sealants in foreign countries, so that the viscose results of adhesives and the sealability of sealants are greatly improved. The mechanism of action is to coat the surface of nano-SiO: with a layer of organic material to make it hydrophilic, and a silica structure will be quickly formed in the sealant, ie, nano-SiO: form a network structure and inhibit the flow rate of colloid. Too fast to improve the bonding effect. In addition, due to the small size of the particles, the sealing performance of the glue is further increased.

2. Because nano-adhesives contain 50nm-70nm rubber particles in the resin, they not only increase the physical and chemical indexes such as sealing strength, shear strength and other heat aging, but also greatly expand their application areas, claiming to be the 21st century The use of adhesives is also a great achievement of the sealing technology. Many composite materials with excellent properties lay the foundation for nano packaging.

3. In the preparation of AL alloys, Chinese scientists and technicians added AL02 nanoparticles. As a result, the crystals were greatly refined, and the strength and toughness were improved. Due to the lubricating effect of inorganic nanoparticles, the cost is greatly reduced, the noise generated when the electrical equipment operates is reduced, and the service life is prolonged.

4. Vapor-phase silica is mainly used for thickening, thixotropy and fluidity control in adhesives and sealants. It can also be used as a thixotropic agent in non-silicon compounds such as epoxy adhesives and sealants. In recent years, the demand in this area has been increasing year by year.

5. China's current ultra-fine heavy calcium carbonate in the amount of adhesive is very small, mainly due to: First, the fine calcium carbonate fineness and surface activity can not meet the requirements; Second, China's application level of adhesive filler is far less than European and American countries. According to the experience of Europe and the United States, with the improvement of the application level of inorganic fillers in adhesives and sealants and the improvement of the quality of heavy calcium carbonate products, heavy calcium carbonate will have a good application prospect in adhesives and sealants.

6. Epoxy nano adhesive adhesive

Adding quantitative fillers in epoxy resins, such as calcium oxide, fly ash, etc., can greatly improve the adhesive coating strength and wear resistance. Nanoparticles are used as fillers, and many nano-epoxy-matrix composites have been studied from the literature. However, nanofillers were added to epoxy adhesives to obtain nano-adhesives, and the effect of different nano-fillers on the performance of adhesives was reported. In this case, the effect of nano-implantation () and nano-organic montmorillonite fillers on the strength and wear resistance of epoxy resin adhesives should be investigated, and the basic data for the engineering application should be provided.