Development trend of the hottest special ink for f

2022-08-05
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The development trend of special ink for flexible packaging

the ink for flexible packaging also has some special requirements for the ink used because of the different characteristics of flexible packaging materials and the use needs of products (such as boiling, cooking, etc.), and with the trend of environmental protection of packaging, the ink for flexible packaging is also required to be environmentally friendly

main requirements for flexible packaging inks

at present, the packaging factory produces a large number of batches, a small number of times, and the film changes frequently. The main inks are: OPP common composite ink (CLPP type), PET/nylon light packaging type (CLPP improved type), water boiling type (PU type), cooking type (PU type); A film: the use of a type of special ink is complex, and the ink inventory increases. The overseas companies have a large range of assets, including base materials: several types of general-purpose inks. In Japan and Southeast Asia, general-purpose inks (PU type) are gradually used to print PET/ny-lon/opp. Changes in solvents used for printing ink: toluene, ketones, esters, alcohols -- no toluene, no ketones

development direction of flexible packaging ink

trend 1: generalization. At present, the current situation of the printing factory is basically that one type of special ink is applied to a film, which is not only complicated to use and requires the preparation of corresponding diluent, but also causes the doubling of the ink library with high video frequency. Due to the fierce competition in modern commerce, the speed of product development and packaging change is accelerated. Many packaging and printing plants produce more batches and less production. Thin film exchange is frequent. If all the base material departments use one type of universal ink, the inventory can be greatly reduced and the operation can be simplified. In Japan and Southeast Asia, Pu general ink is gradually used to print PET/nylon/OPP, and PU ink has been rising in the sales share of the whole composite ink, up to 50%-90%

flexible packaging printing based on plastic film plays an important role in packaging printing. According to statistics, in some advanced countries in the world, plastic packaging accounts for 32.5%-44% of the whole printing industry. Generally speaking, a single flexible packaging material has poor protection for its contents, so composite materials are often used. Its production process is plastic film → gravure printing, flexographic printing → composite → cutting → bag making → customer

trend 2: environmental protection. The solvents used in ink generally include toluene, ketones, esters, alcohols or water. Relatively speaking, toluene and ketone solvents do great harm to human body. Governments around the world are formulating or preparing relevant restrictions on heat resistance. Another development trend is: benzene containing and ketone free toluene containing ketone free toluene containing ketone free toluene and ketone free ink water-based oil-plastic ink (only containing alcohol and lipid inks). Therefore, alcohol and ester universal inks are universal and environmentally friendly, It is the development trend of composite ink. Now Japan has begun to use it in batches, and some multinational companies such as DIC and SICPA are also promoting it

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