Preparation method for producing lithographic ink containing calcium carbonate by one-step kneading method
A technology of lithographic ink and calcium carbonate, which is applied in ink, household utensils, applications, etc., can solve problems such as uneven mixing of materials, affecting ink performance, and ink quality decline
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Embodiment 1
[0093] One-step kneading method produces the preparation method of the lithographic printing ink containing calcium carbonate, comprises following preparation steps:
[0094] Step 1, one-step kneading method to prepare mixed base ink:
[0095] 1. Calcium carbonate and coloring pigment are kneaded at the same time:
[0096] Add 16% of calcium carbonate filter cake, 20% of filter cake pigment of C.I. Pigment Red 57:1 and 37% of pigment binder into a kneader or mixer for mixing and stirring, the stirring time is 25min, the kneading temperature is 65°C, and then static After standing for a period of time to separate the oil and water, tilt the kneader to pour out the upper layer of water;
[0097] The water content of described calcium carbonate filter cake is 50%;
[0098] 2. Vacuum dehydration:
[0099] Vacuumize the kneader with a vacuum temperature of 85°C and a vacuum degree of 0.1MPa to further squeeze out the remaining moisture;
[0100] 3. Mix and stir:
[0101] Add 3...
Embodiment 2
[0115] The main technical scheme of this embodiment is the same as Embodiment 1, the difference is:
[0116] One-step kneading method produces the preparation method of the lithographic printing ink containing calcium carbonate, comprises following preparation steps:
[0117] Step 1, one-step kneading method to prepare mixed base ink:
[0118] 1. Calcium carbonate and coloring pigment are kneaded at the same time:
[0119] Add 23.3% of calcium carbonate filter cake, 17.5% of C.I. Pigment Yellow 12 filter cake pigment and 28% of pigment binder into a kneader or mixer for mixing and stirring. The stirring time is 30min, and the kneading temperature is 60°C, and then stand for a period of time. After time separates the oil and water, tilt the kneader to pour out the upper layer of water;
[0120] The water content of described calcium carbonate filter cake is 40%;
[0121] 2. Vacuum dehydration:
[0122] Vacuumize the kneader with a vacuum temperature of 80°C and a vacuum deg...
Embodiment 3
[0136] The main technical scheme of this embodiment is the same as Embodiment 1, the difference is:
[0137] One-step kneading method produces the preparation method of the lithographic printing ink containing calcium carbonate, comprises following preparation steps:
[0138] Step 1, one-step kneading method to prepare mixed base ink:
[0139] 1. Calcium carbonate and coloring pigment are kneaded at the same time:
[0140] Add 25.7% of calcium carbonate filter cake, 15% of carbon black pigment and 30% of pigment binder into a kneader or mixer for mixing and stirring. The stirring time is 20 minutes and the kneading temperature is 70°C, and then stand for a period of time to separate the oil and water. Finally, tilt the kneader to pour out the upper layer of water;
[0141] The water content of described calcium carbonate filter cake is 30%;
[0142] Described carbon black pigment is the black pigment that C.I. Pigment Black 7 and demineralized water are mixed according to t...
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