Method for preparing aqueous ink special for cartons
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A water-based ink and carton technology, which is used in the preparation of new printing inks, can solve the problems of small application range, high production cost and high price, achieve scientific simplicity, refine process conditions, and improve anti-corrosion and antibacterial properties, quality and performance. improved effect
Inactive Publication Date: 2011-08-17
QINGDAO UNIV
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Problems solved by technology
This technology uses an inorganic and organic compound antibacterial agent. Although the ink has good antibacterial properties, the preparation process is relatively complicated and the price is too expensive. It is only suitable for printing on high-grade paper such as coins, and its application range is small.
[0003] To sum up, the existing water-based inks for carton printing generally have the disadvantages of poor antibacterial effect and high production cost, and there is no water-based ink specially designed for cartons that has the advantages of high quality, low price, mildew resistance and antibacterial.
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Embodiment 1
[0013] 1. Preparation of rosin oil: the equipment adopts a 300Kg reactor.
[0014] (1) Add 150Kg of water and start heating;
[0015] (2) The water temperature rises to 65°C and 3Kg of methanol is added, then the stirrer is turned on and 75Kg of rosin resin is slowly added;
[0016] (3) The water temperature rises to 75°C-80°C and stirs for another 30 minutes, then adds 9Kg of monoethanolamine and continues to stir;
[0017] (4) When the water temperature drops below 70°C, add 1.5Kg of methanol and 9Kg of ammonia water and continue to stir for 2.5-3 hours until the pH value reaches 8.5-9.
[0018] 2. Grinding color paste:
[0019] Rosin oil 60Kg, carbon black 20Kg, water-based ink emulsified oil 7-9Kg, KE-309 paint ink defoamer 0.5Kg, water 100-200Kg, mix and grind until the fineness is below 15μm, it is the prepared color paste.
[0020] 3. Mixing ink:
[0021] Add 80-100Kg of rosin oil, 6Kg of water-based ink emulsified oil, 0.4Kg of KE-309 paint ink defoamer, 1Kg of mon...
Embodiment 2
[0027] 1. Preparation of rosin oil: the equipment adopts a 400Kg reactor.
[0028] (1) Add 200Kg of water and start heating;
[0029] (2) The water temperature rises to 65°C and 4Kg of methanol is added, then the stirrer is turned on and 100Kg of rosin resin is slowly added;
[0030] (3) The water temperature rises to 75°C-80°C and stirs for another 30 minutes, then adds 12Kg of monoethanolamine and continues to stir;
[0031] (4) When the water temperature drops below 70°C, add 2Kg of methanol and 12Kg of ammonia water and continue stirring for 2.5-3 hours until the pH value reaches 8.5-9.
[0032] 2. Grinding color paste:
[0033] Rosin oil 90Kg, carbon black 30Kg, water-based ink emulsified oil 8-9Kg, KE-309 paint ink defoamer 0.9Kg, water 150-200Kg, mix and grind until the fineness reaches below 15μm, it is the prepared color paste.
[0034] 3. Mixing ink:
[0035] Add 120-150Kg of rosin oil, 9Kg of water-based ink emulsified oil, 0.6Kg of KE-309 paint ink defoamer, 1....
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Abstract
The invention relates to a method for preparing aqueous ink special for cartons, which comprises the following steps: adding 100 portions by weight of water into a stirring kettle and then heating thewater, adding 2 portions by weight of methanol into the water when the temperature of the water rises to 65 DEG C, then slowly adding 50 portions by weight of rosin resin into the mixture under stirring, stirring the mixture again when the temperature of the water rises to 75 to 80 DEG C, adding 6 portions by weight of ethanolamine into the mixture to be stirred, adding a mixture of 1 portion byweight of the methanol and 6 portions by weight of ammonia water into the mixture when the temperature is reduced to be below 70 DEG C, and continuously stirring the mixture to achieve the pH value of8.5 to 9 and obtain rosin oil; mixing 100 portions of the rosin oil, 35 portions of pigment, 10 to 15 portions of emulsifying oil, 1 portion of antifoaming agent and 100 to 300 portions of water by weight portion, and then grinding the mixture into color paste; and adding 40 to 50 portions of the rosin oil, 3 portions of the emulsifying oil, 0.2 portion of the antifoaming agent, 0.5 portion of the ethanolamine, 3 portions of antimicrobial Nipagin esters and 10 to 100 portions of the water by weight portion into 100 portions by weight of the color paste, and mixing and stirring the mixture atnormal temperature to obtain the aqueous ink. The preparation method has simple process; and the prepared aqueous ink has the advantages of bacteria and mildew resistance, good water resisting property, decoloring resistance and low cost, and can be widely applied to external packing cartons of food and the like.
Description
Technical field: [0001] The invention relates to a preparation method of a novel printing ink, in particular to a preparation method of a water-based ink used for food and other outer packaging cartons. Background technique: [0002] At present, the ink used for carton printing occupies a large proportion of letterpress printing inks. Due to the large difference in the storage environment of cartons, if the storage time is too long in a humid or open environment, the ink is prone to discoloration and mold growth, which will cause damage to the packaging. Pollution and reduced aesthetics. Chinese patent application CN1237602A discloses a formula and production process of water-based ink for cartons using triethanolamine and the like as raw materials. Although the products produced have the characteristics of good water resistance and non-fading, there are also major defects. Because there is no suitable antifungal agent added, its antibacterial effect is very poor, and the ...
Claims
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Application Information
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