Solvent-free laminating process status and its development

First, solvent-free composite process status and its development

After the 1980s, solvent-free laminating process in foreign industrial developed countries is growing rapidly, the application of dry laminating is significantly reduced (especially in Europe, after the 1980s, the new solvent-free laminating production line accounted for more than 90 per cent of the total number of new dry laminating and solvent-free laminating production line); in the industrially developed countries, only Japan has long been the application of a large number of dry laminating, but to the end of the 1990s, also began to pay attention to solvent-free laminating process, and has a relatively rapid development. In the late 1990s, also began to pay attention to the solvent-free laminating process, and there is a relatively rapid development, in recent years, began to our country to promote solvent-free laminating equipment and solvent-free adhesives.

For a long time, the application of solvent-free laminating process in China is extremely limited, until 2007, the total number of solvent-free laminating film production lines in the country is only about 40, which is far lower than the number of dry laminating film production lines (less than 5% of the total number of dry laminating and solvent-free laminating production lines). Happily, in recent years, some units in the production of composite flexible packaging materials, the use of solvent-free laminating process has achieved good results, which is representative of Shanghai's Zijiang colour printing company, Henan Shuanghui Packaging Materials Company, Hubei Salt Company, etc., which have achieved the imported solvent-free production line running at full capacity, and the Shuanghui Packaging Materials Company, Hubei Salt Company also introduced a second set of solvent-free laminating production line, which has achieved full load. Solvent-free composite production line, their success, for the promotion and application of solvent-free composite process has a good demonstration effect.

2.Favourable conditions for advocating and promoting solvent-free laminating process at present

Sustainable development strategy requires people to establish environmentally friendly, resource-saving production model, solvent-free laminating process is the production of composite flexible packaging materials is one of the most ideal process, the development of solvent-free laminating, in line with national policy guidance. More favourable conditions is that people have been initially with the use of solvent-free composite process, reflecting the economic advantages of solvent-free composite process necessary conditions.

(1) The domestic chemical industry began to pay attention to the development and application of solvent-free adhesives and voted for a class breakthrough progress.

Which has a representative enterprise, can be on the Shanghai Kangda chemical company as an example, as the chairman of the Shanghai Adhesives Association, Shanghai high-tech enterprises, Shanghai Kangda Chemical Co., Ltd. has invested a lot of manpower, material resources, to carry out the development of solvent-free adhesives, research, has developed a series of products, including ordinary, aluminium-plated type, boiling type, and 120 ° C high temperature cooking type of solvent-free adhesives, and put into a large-scale industry, the development and application of solvent-free adhesives. Series of products, and put into the large-scale industrial production, to achieve the true sense of solvent-free adhesive localisation, not only the product quality has reached a level comparable to imported adhesives, and has obvious economic benefits (practical application shows that the dry composite save gluing costs of about 50%). Shanghai Kanda Chemical Company in the process of researching solvent-free composite adhesives, but also developed a glue machine (adhesive glue supply, mixing machine) and free of charge to provide users with the use of solvent-free composite process for the promotion and application of the country to create very favourable conditions.

Policy guidance is also worth noting the favourable factors, in Shanghai Kangda Chemical Co., Ltd. developed successful solvent-free adhesives, by the China Packaging Federation and the State Ministry of Finance attaches great importance to the solvent-free adhesives of Shanghai Kangda Chemical Co., Ltd. of the successor subject, included in the National Packaging Development Fund of the key funding projects can be expected to strongly promote the development of solvent-free adhesives in China.

In addition to Shanghai Kangda Chemical Co., Ltd., some domestic adhesives in the adhesive has a strong foundation of units, such as high Union Chemical, the new Oriental ink, Europe and the United States chemical companies, have begun or proposed to embark on the development and research of solvent-free adhesives, the domestic solvent-free adhesive industrialisation, for the promotion and application of solvent-free composite technology to create extremely favourable conditions.

(2) solvent-free composite production line progress is also a promising situation

Many plastic machinery manufacturers, have been (or plan to) intermediary solvent-free composite equipment research and development work, a number of domestic solvent-free composite production line has also come out. Solvent-free composite production line in the process of localisation, the price has also dropped significantly, from the previous imported 3 million yuan / about one, down to about 1 million yuan / one of the domestic equipment or less.

Some equipment manufacturers in order to promote solvent-free composite, but also for the first time in the country put forward a turnkey project-type service, the commitment to help users train equipment operators, to help customers develop a practical composite film products, etc., there is no doubt that the introduction of this measure, the solvent-free composite process will play a positive role in promoting the application of the process.

At present, the domestic development, production of solvent-free adhesive work has a promising start, but the foreign production and application of some high-end solvent-free adhesives, such as resistance to 135 ℃ cooking solvent-free adhesives, excellent media-resistant solvent-free adhesives, solvent-free adhesives to withstand the content of high slip agent, etc., are still blank in the country, in order to meet the need for the popularisation and application of solvent-free composite, we must be in the now already achieved! In order to meet the needs of solvent-free composite application, it is necessary to develop more and better new products on the basis of the achievements already made.

Nanjing Suminoe Precision Machinery Co., Ltd. is a collection of scientific research, production, sales in one of the high-tech enterprises, and has always adhered to the integrity, equality, customer interests first business philosophy, in order to better improve the quality of equipment, into a more professional and standardised production track. We set up a plastic sheet plate, casting, bi-directional stretching, non-woven nonwoven meltblown cloth, film composite, renewable granulation environmental protection recycling system and coating machine manufacturing system and other seven categories of equipment, independent research and development technology centre and production departments. We provide professional full set of technical solutions to meet the special needs of each customer. Among them, regarding the extrusion laminating manufacturing system, i.e. film laminator, the following production lines are available for customisation: PE double/triple co-extruded laminating production line, LDPE (3-in-1) laminating production line, PP,PE,PLA double-side laminating production line, aluminium foil high-speed laminating production line, PP spunbonded laminating production line, textile interlining fabrics laminating production line, hot-melt adhesive laminating production line, multi-layer extrusion laminating production line, graphene laminating production line and other laminating equipment. Graphene coated laminating line, Carbon fibre laminating line.