CN103666045B - UV curing inks of the little strong adhesion of a kind of granularity and preparation method thereof - Google Patents

Abstract

The invention discloses a UV curable ink with small particle size and strong adhesion, which is characterized in that it is prepared from the following raw materials in parts by weight: organic pigment 1-3, polyurethane acrylate 24-26, 1,6 hexanediol Acrylate 12-15, Nano Al2O3 2-4, Activated Carbon 1-2, Oleic Acid 4-5, Tripropylene Glycol Diacrylate 10-12, Phenyl Glycidyl Ether 1-2, Ultraviolet Absorber UV -531? 1-2, photoinitiator 2959? 4-7, cobalt naphthenate 1-2, sodium silicate 2-3, orange oil 2-3, auxiliary agent 4-5; the auxiliary agent of the present invention improves ink The toughness makes the ink disperse evenly and maintains the stability of the ink; the ink of the present invention has the advantages of small particle size, low viscosity, excellent wetting, strong adhesion, etc., and is energy-saving and environment-friendly.

Description

A kind of UV curing ink with small particle size and strong adhesion and preparation method thereof

technical field

The invention relates to an ink and a preparation method thereof, in particular to a UV curable ink with small particle size and strong adhesion and a preparation method thereof.

Background technique

Ultraviolet curing (UV) ink refers to the ink that uses ultraviolet light of different wavelengths and energies to form a film and dry the ink under ultraviolet radiation. Using different ultraviolet spectra, different energies can be generated to polymerize monomers in different ink binders into polymers, so the color film of UV ink has good mechanical and chemical properties. The main advantages of UV ink are: (1) No solvent is used; (2) Fast drying speed and less energy consumption; (3) Good gloss and bright colors; (4) Water resistance, solvent resistance, and good wear resistance. The photoinitiator in UV ink is a compound that is easily excited by light. After absorbing light, it is excited into a free radical, and the energy is transferred to the photosensitive molecule or photocrosslinking agent, so that the UV ink undergoes a photocuring reaction. At present, UV ink has become a relatively mature ink technology, and its pollutant discharge is almost zero. In addition to not containing solvents, UV inks also have the advantages of not easy to paste, clear dots, bright and bright ink colors, excellent chemical resistance, and low consumption.

Contents of the invention

The object of the present invention is to provide a UV curing ink with small particle size and strong adhesion and a preparation method thereof.

In order to realize the purpose of the present invention, the present invention is implemented through the following schemes:

A UV curable ink with small particle size and strong adhesion, prepared from the following raw materials in parts by weight: organic pigment 1-3, polyurethane acrylate 24-26, 1,6 hexanediol diacrylate 12-15, nanometer three Aluminum oxide 2-4, activated carbon 1-2, oleic acid 4-5, tripropylene glycol diacrylate 10-12, phenyl glycidyl ether 1-2, ultraviolet absorber UV-5311-2, photoinitiator 29594-7, cobalt naphthenate 1-2, sodium silicate 2-3, orange oil 2-3, additives 4-5;

The auxiliary agent is prepared from the following raw materials in parts by weight: 0.2-0.3 nanometer diatomite powder, 0.2-0.3 nanometer mica powder, silane coupling agent KH-5502-3, morpholine 1-2, neopentyl glycol 3-4, antioxidant 10351-2, crosslinking agent TAC2-3, tripropylene glycol diacrylate 10-12, propylene glycol methyl ether acetate 5-10, propyl gallate 2-3, barley oil 1- 2; the preparation method is to mix all the materials, heat to 60-70 ℃, stir and react for 30-40 minutes to obtain.

The UV curable ink with small particle size and strong adhesion of the present invention is made by the following specific steps: firstly add organic pigment, polyurethane acrylate, 1,6 hexanediol diacrylate, nano-alumina, activated carbon, oleic acid , tripropylene glycol diacrylate, phenyl glycidyl ether, ultraviolet absorber UV-531, stir and mix well, heat to 80-90°C, stir for 25-35 minutes; then add the rest except photoinitiator 2959 Ingredients, stirred and reacted for 3-5 hours; finally cooled to 60-70°C, added photoinitiator 2959, stirred and reacted for 40-50 minutes, after cooling, ground to obtain a 20-40μm slurry, that is.

The beneficial effects of the present invention are: the additive of the present invention improves the toughness of the ink, makes the ink dispersed evenly, and maintains the stability of the ink; the ink of the present invention has the advantages of small particle size, low viscosity, excellent wetting, strong adhesion, etc. , and energy saving and environmental protection.

specific implementation plan

The present invention will be described in detail below through specific examples.

A UV curable ink with small particle size and strong adhesion, prepared from the following raw materials in parts by weight (kg): organic pigment 1, urethane acrylate 24, 1,6 hexanediol diacrylate 12, and nanometer aluminum oxide 2. Activated carbon 1, oleic acid 4, tripropylene glycol diacrylate 10, phenyl glycidyl ether 1, ultraviolet absorber UV-5311, photoinitiator 29594, cobalt naphthenate 1, sodium silicate 2, orange oil 2. Additive 4;

The auxiliary agent is prepared from the following raw materials in parts by weight (kg): nano diatomite powder 0.2 nano mica powder 0.2, silane coupling agent KH-5502, morpholine 1, neopentyl glycol 3, antioxidant 10351 , crosslinking agent TAC2, tripropylene glycol diacrylate 10, propylene glycol methyl ether acetate 5, propyl gallate 2, coix seed oil 1; the preparation method is to mix the materials, heat to 60-70°C, and stir to react 30-40 minutes, that is.

The UV curable ink with small particle size and strong adhesion of the present invention is made by the following specific steps: firstly add organic pigment, polyurethane acrylate, 1,6 hexanediol diacrylate, nano-alumina, activated carbon, oleic acid , tripropylene glycol diacrylate, phenyl glycidyl ether, ultraviolet absorber UV-531, stir and mix well, heat to 80-90°C, stir for 25-35 minutes; then add the rest except photoinitiator 2959 Ingredients, stirred and reacted for 3-5 hours; finally cooled to 60-70°C, added photoinitiator 2959, stirred and reacted for 40-50 minutes, after cooling, ground to obtain a 20-40μm slurry, that is.

The obtained ink was peeled off with cross-cut kraft tape, with a cross-cut distance of 1mm, and 100% adhesion; using a cotton ball soaked in alcohol, wiped 50 times with a pressure of 300 grams, no abnormality; soaked in salad oil (at room temperature) for 8 hours , no abnormality; use a cotton ball soaked in salt water, wipe 50 times with 300 grams of pressure, no abnormality.

Claims (2)

1. A UV curable ink with small particle size and strong adhesion is characterized in that it is prepared from the following raw materials in parts by weight: organic pigment 1-3, polyurethane acrylate 24-26, 1,6-hexanediol diacrylic acid Ester 12-15, nano-aluminum oxide 2-4, activated carbon 1-2, oleic acid 4-5, tripropylene glycol diacrylate 10-12, phenyl glycidyl ether 1-2, ultraviolet absorber UV- 5311-2, photoinitiator 29594-7, cobalt naphthenate 1-2, sodium silicate 2-3, orange oil 2-3, additives 4-5; The auxiliary agent is prepared from the following raw materials in parts by weight: 0.2-0.3 nanometer diatomite powder, 0.2-0.3 nanometer mica powder, silane coupling agent KH-5502-3, morpholine 1-2, neopentyl glycol 3-4, antioxidant 10351-2, crosslinking agent TAC2-3, tripropylene glycol diacrylate 10-12, propylene glycol methyl ether acetate 5-10, propyl gallate 2-3, barley oil 1- 2; the preparation method is to mix all the materials, heat to 60-70 ℃, stir and react for 30-40 minutes to obtain. 2. The UV curable ink with small particle size and strong adhesion according to claim 1 is characterized in that it is made by the following specific steps: first add organic pigments, polyurethane acrylate, 1,6-hexanediol diacrylate, nano Aluminum oxide, activated carbon, oleic acid, tripropylene glycol diacrylate, phenyl glycidyl ether, ultraviolet absorber UV-531 are stirred and mixed, heated to 80-90°C, stirred for 25-35 minutes; then added The rest of the ingredients except photoinitiator 2959 were stirred and reacted for 3-5 hours; finally, the temperature was lowered to 60-70°C, photoinitiator 2959 was added, stirred and reacted for 40-50 minutes, after cooling, grind to obtain a 20-40μm slurry, Instantly.