1. Characteristics of water-based ink for corrugated paper printing
Water-based inks are roughly divided into two categories: a rosin-maleic acid modified resin series (low grade) b acrylic resin series (high grade)
Second, the performance requirements of water-based ink
1. After long-term storage of the precipitate, it should be easily redispersed after stirring
2. Have good flow properties and viscosity
3. Has good storage stability;
4. Drying performance should be fast and appropriate;
5. Can not have any adverse effects on the printing plate and printing machine.
6. Must not have too much irritating smell;
3. Technical parameters of water-based ink
1 Color: Similar to the standard sample Note: Compare the test sample and the standard sample with a manual color wheel to develop the color contrast
2 Fineness: less than 20 microns Instrument: 0-50 microns scraper fineness meter.
3 Viscosity: 20 seconds ± 5 seconds Instrument: RIGOSHA4 # cup (25 ° C).
4PH value: 8.0ï¼9.5
5 Instrument: Portable pH meter (PHB-2 type) .. Heavy metal content: In line with the world packaging green environmental protection standards.
6 Endurance meets requirements
Fourth, the correct use requirements of water-based ink
1. Must be fully stirred before use to keep the ink composition uniform;
2. After opening and using, the ink storage should be capped and sealed immediately to prevent dust and dry skin;
3. If the residual ink contains impurities, it should be filtered first, and then used with new ink;
4. During storage, please avoid exposure to high temperature or hot sun.
5 If you find that the viscosity of the applied ink is slightly larger, you can add an appropriate amount of water for adjustment.
Bread Basket,stainless wire basket,stainless wire bread basket,Metal Wire Bread Basket,steel bread basket,etc. we offered that you can trust. Welcome to do business with us.
Kichen Rack is made of high quality 304 stainless steel, This kind of material steel luxury, never rust, resist corruption, easily clean, safe, healthy and durable. Prevent rust or chemicals from contaminating food and damaging health
Stainless Steel Wire Bread Basket,Metal Wire Bread Basket,Creative Bread Basket,Versatile Bread Basket
Shenzhen Lanejoy Technology Co.,LTD , https://www.ccls-vaccine.com