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In packaging printing, environmentally friendly high temperature (121 ° C ~ 150 ° C) silk screen ink has become the focus of attention. The so-called environmentally-friendly high-temperature screen printing ink is the surface of the packaging product that has completely completed the graphic printing process, so that the printed graphic ink layer can adapt to the heat-resistant water-soluble ink layer and has certain water resistance performance. The environmentally friendly and decorative inks that the substrates are compatible with.
Screen printing of environmentally friendly and high temperature resistant inks does not change the process procedure due to environmental protection and high temperature resistance. However, it is characterized in that the adjustment ink is diluted with pure water, especially when the printed product is subjected to a certain high temperature, the ink film of the printing ink increases the adhesion fastness, so that the softening of the ink film is not caused by the heat of the environment. Sticking and causing defective products or even scrapping. Products can be customized according to the needs of users and the actual printing process requirements. To this end, the author focuses on the formulation and application range of the product.
Characteristics of water-based high temperature screen printing ink
Water-based high temperature screen printing ink has non-toxic, odorless, organic solvent-free volatiles, low cost, broad material source, good gloss, resistance to precipitation, heat resistance, abrasion resistance and water washing resistance, economic health, etc. Features.
Water-based high-temperature screen printing inks can be classified into three types: high gloss, ordinary gloss, and matt. From the screen technology can be divided into: manual silk screen and rotary screen rotary screen printing two categories. Water-based silk screen high-temperature resistant ink can eliminate the harm to the human body and the pollution of the environment during use. It has begun to be valued by packaging and printing enterprises such as food, artificial leather and luggage.
In addition to environmental protection, silk screen high temperature ink has the following advantages compared with solvent type screen printing ink:
1. Heat and wash resistant. The ink is typically resistant to 121 ° C to 150 ° C and provides an operational platform for some special packaged printed products. In particular, past inks tend to cause sticking or sticking and whitening due to an increase in ambient temperature or humidity. In particular, artificial leather products tend to soften, deform, and migrate the ink ink film in the process of post-press glazing, etc., resulting in the scrapping of the product. Second, due to the printing process and even during use, the ink film is not resistant to washing, resulting in fading and discoloration. The environmentally-friendly high-temperature screen printing ink is generally cured by high temperature, and the degree of branching of the graphic ink film is enhanced to enhance the water resistance of the product.
2. High transparency. The substrate is bright and can be stored on printed materials for a long time. Under strong sunlight, it is not easy to yellow, discolor and fade.
3. Strong wear resistance. Packaging and printing jewelry needs a strong wear resistance, measured at 50 pressures per square centimeter, generally should reach 150 rubs per minute; general light, can reach 50 to 70 brightness units. Therefore, the packaged silk screen product not only has to be wear-resistant, and is resistant to 30 minutes of water washing, and can meet this requirement at up to 121 ° C to 150 ° C (3 seconds to 10 seconds).
4. After filming, the film formation speed is fast and the drying is rapid. The drying process of the water-resistant high-temperature screen printing ink is 60% by evaporation or volatilization, 40% is absorbed by the material, and the drying is rapid, and the graphic conjunctiva of the printing ink can be completed in about several minutes or tens of minutes. If the infrared or hot air drying method is used, the film formation can be dried.
5. It is convenient and safe to use and store, which is conducive to safe production and improve the working conditions of the operating staff. Since solvent-based or oil-based screen printing inks are classified as dangerous goods, transportation, storage, and use are quite inconvenient. The environmentally-friendly high-temperature-resistant silk screen printing ink uses water as a solvent without any danger. It is safe and reliable to use. It can be used to clean equipment and clean your fingers.
TM-200S 1.6%
Toner 25%
H2O 54%
DMF 9%
Defoamer 0.5%
MLCA 3%
NH2CH2CH2CH 2%
CH3CH2OH 1.5%
2. A-1 and B-1 ink formula design (artificial leather, floor leather, PVC) example:
(1) PUL-150%
Color paste 23%
H2O 20%
NH2CH2CH 4%-8%
BT-860 right amount (2) PL0826 46%
Anti-adhesive agent 3% BT-860 right amount
H2O 30%-45%
3. Application range OPP, PE, PET, PVC, paper, aluminum foil, etc.:
PL0216A 23%
Color paste 20%
25% of water
NH2CH2CH2OH 3%-7%
KAOLIN 3.5%
BT-860
Ribbing Knitted Fabric,Knitted Ribbing Stripes Fabric,3 Colors Stripes Fabric,Green Stripes Ribbing Fabric
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