Method for preparing aqueous ink special for cartons
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A water-based ink and carton technology, applied in the field of preparation of new printing ink, can solve the problems of small application range, high production cost, high price, etc., achieve scientific simplicity and refine process conditions, improve anti-corrosion and antibacterial performance, quality and performance Improved effect
Inactive Publication Date: 2009-11-25
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 uses a 300Kg reactor.
[0014] (1) Add 150Kg of water and start heating;
[0015] (2) Raise the water temperature to 65°C and add 3Kg of methanol, then turn on the stirrer and slowly add 75Kg of rosin resin;
[0016] (3) Raise the water temperature to 75°C-80°C and stir for another 30 minutes, then add 9Kg of monoethanolamine and continue stirring;
[0017] (4) The water temperature drops below 70°C, and a mixture of 1.5Kg methanol and 9Kg ammonia is added and stirring is continued for 2.5-3 hours, until the pH value reaches 8.5-9.
[0018] 2. Polishing color paste:
[0019] Rosin oil 60Kg, carbon black 20Kg, water-based ink emulsified oil 7-9Kg, KE-309 paint and ink defoamer 0.5Kg, water 100-200Kg, mixed and ground to a fineness of 15μm or less, it is a good color paste.
[0027] 1. Preparation of rosin oil: The equipment uses a 400Kg reactor.
[0028] (1) Add 200Kg of water and start heating;
[0029] (2) Increase the water temperature to 65°C and add 4Kg of methanol, then turn on the stirrer and slowly add 100Kg of rosin resin;
[0030] (3) Raise the water temperature to 75°C-80°C and stir for another 30 minutes, then add 12Kg of monoethanolamine and continue stirring;
[0031] (4) When the water temperature drops below 70°C, add a mixture of 2Kg methanol and 12Kg ammonia water and continue to stir for 2.5-3 hours until the pH value reaches 8.5-9.
[0032] 2. Polishing color paste:
[0033] Rosin oil 90Kg, carbon black 30Kg, water-based ink emulsified oil 8-9Kg, KE-309 paint and ink defoamer 0.9Kg, water 150-200Kg, mixed and ground to a fineness of 15μm or less, it is a good color paste.
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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 the water, 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 by weight 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 of 8.5 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 at normal 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 method for preparing a novel printing ink, in particular to a method for preparing a water-based ink used for outer packaging cartons such as food. Background technique: [0002] At present, the ink used for carton printing occupies a large proportion of the letterpress printing ink. Because the storage environment of the carton is quite different, if the storage time is too long in a humid or open environment, the ink is prone to bleaching and mold growth, which will cause damage to the packaging. Pollution and aesthetics are reduced. Chinese patent application CN1237602A discloses a formula and production process of a special 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, they also have major defects. Since no suitable anti-mold agent is added, its antibacterial effect is very poor, and the price of...
Claims
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Application Information
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