Composite domestic product packaging adhesives environmental safety concern

Adhesives for flexible packaging of food choices to consider a variety of factors, generally speaking, should meet the following conditions:

(1) non-toxic;

(2) after the packaged food without harmful extracts appear;

(3) the application of food storage temperature requirements

(4) weather resistance, non-sparkling yellow, not pink of delamination;

(5) have a certain ability to medium resistance;

(6) does not erode the printing ink design, ink and a higher affinity.

Composite packaging film adhesives should have the following properties:

(1) bonding: adhesive bonding can be at the same time two different properties of materials;

(2) flexibility: flexibility to meet the complex after the demand for transport and storage;

(3) heat resistance: According to the food processing technology, there is a certain degree of heat resistance;

(4) cold: low-temperature storage of food to meet the requirements;

(5) anti-media: the stability of the adhesive is very important to be able to tolerate the erosion of media, or give rise to complex layered film spin-off, lost the role of packaging;

(6) Health and Safety: Food Packaging in line with the relevant health and safety standards

China's food and packaging materials are already laws and regulations and the appropriate standards of health, of which there are two: First, the "Food Sanitation Law of the People's Republic", and the other is the "food plastic products and raw materials management." "Food Sanitation Law," the State Council promulgated the "management" is promulgated by the Ministry of Health. The two are mandatory law, in violation of its provisions will be liable. Food Sanitation Law of the regulatory approach to the management of content than the much broader, is a comprehensive law. The latter is a professional, only plastics and raw materials, the scope of the management of limited access to food in a variety of plastic utensils container production management, and the conveyor belt made of plastic packaging materials and the use of synthetic resins and additives.

Solvent-based adhesives alternatives to the current two major products. The first water-based adhesives. Water-based adhesives are: not with the viscosity of the polymer molecular weight changes are significant differences, which can be quantified polymer polymer to enhance its cohesive strength; normal viscosity than solvent-based low; easy to paint or resin and other mixed In order to reduce costs and improve performance; incombustible non-toxic, organic solvents easily apply to the erosion of the substrate; easy formula to deploy, easy to clean.

Water-based adhesives are single component and two two-component product line. One-part series is characterized by the ratio of plastic do not have time, the use of direct operate low-cost production process simple and efficient. Du Lvmo advantage in the film and the performance of the composite would be more prominent, like polyurethane plastic will not cause as the transfer of Dulv Mo. Peel strength because of the restrictions, one-part water-based adhesives used in the main puffing food biscuits pharmaceutical candy, as well as condiments such as light in the field of packaging. The two-component water-based adhesive is a breakthrough in the peel strength and heat-resistant chemical properties, such as technical problems, can be used for cooking, including food and liquid food packaging.

Second, solvent-free adhesive. Solvent-free adhesive is basically from the two-component polyurethane adhesive composition, the main agent and curing agent at room temperature, the higher viscosity, but still have mobility, is semi-solid material. When carrying out complex, the main agent and curing agent in proportion mixed, with heat insulation on the function of adhesive disc go through heating to reduce the viscosity so that the appropriate level, and then through a heat insulation function Anilox Tu Up to the substrate. After the coating do not have to dry by the heat directly with one another to carry out complex matrix.

Rohm and Haas is taking the lead in the Chinese flexible packaging market to promote water-based adhesive compound of the multinational, the first in China to supply water-based adhesives business of the enterprise. Rohm and Haas believe that the flexible packaging market in Europe and the United States currently using water-based and solvent-free campaign, the Chinese flexible packaging market in the direction of development is no doubt better for the environment and health, Rohm and Haas to help customers easily cope with future laws and regulations.

At present, Rohm and Haas flexible packaging industry in the global water Adhesive-market accounts for about 90% of the share.

Rohm and Haas of the United States of the major water-based adhesives are single component and the two major categories of two-component product line. One-part water-based adhesives used in the main extruded food / cookies / candy / condiment packaging in the field of light, and so on. The two-component water-based adhesive is a breakthrough in the peel strength / heat resistance and chemical properties, and other technical problems, you can do cooking liquid and food packaging, such as high-end products. The water-based acrylic adhesive bonding layer is soft and tough, especially suitable for manufacturing food packaging with a variety of laminated composite film. Many well-known Dan Huangpai / biscuits / noodles / cereal / milk brand and even its packaging manufacturers specify the use of Rohm and Haas's water-based adhesives production, end-user support to speed up the water-based adhesives in China to promote.

Rohm and Haas is more committed to the whole industrial chain to the development of highly efficient energy-saving environmental protection, safety, food manufacturers, through technical support and exchange so that it approved a new environmentally friendly packaging, thus promoting the healthy development of the industrial chain. At the same time, Rohm and Haas has always been concerned about the environment, community and the voice of consumers in the industry to promote appropriate packaging, green packaging, packaging should be useful to promote environmental protection and health and safety is the major consideration, concern about social responsibility and environmental protection.
Rohm and Haas of the United States is the world's largest manufacturer of acrylic latex, in Beijing, China, Shanghai has invested in the construction of two acrylic latex production plant. Rohm and Haas introduced to the U.S. market has been mature green water-based adhesives, it does not contain organic solvents, which are also fully meet the general performance of food packaging used by the film and the film, film and Du Lvmo between the dry compound request , To replace solvent-based polyurethane adhesive and solvent-existing stem directly on the use of complex machine. Rohm and Haas adhesive raw materials, such as monomers and intermediates, synthetic production of their own, strong supply chain to ensure the stability of the raw materials. Rohm and Haas advanced production technology and automation equipment, so that it produced the world's leading position in the water-based adhesives. In addition, the use of water that the plastic composite packaging film does not need ripening can be carried out at all, it will be able to color printing manufacturers to reduce production cycle, especially in the season when food manufacturers could easily cope with the emergency order.