CN103666043B - UV ink that a kind of quick solidifying sticking power is good and preparation method thereof - Google Patents

Abstract

The invention discloses a UV ink with fast curing and good adhesion, which is characterized in that it is prepared from the following raw materials in parts by weight: organic pigment 1-3, polyurethane acrylate 30-40, ethyl acrylate 10-14, methyl ethyl ketone 10-12, amino resin 20-23, dimethyl silicone oil 4-5, humic acid 1-2, stearyl alcohol 1-2, methacrylate 3-4, vinyl ether type carbamate 20- 24. 2-Hydroxy-2? methyl-1? Phenyl-1? Acetone 4-6, tributyltin trichloride 2-3, auxiliary agent 4-5; the auxiliary agent of the present invention improves the toughness of the ink, makes the ink disperse evenly, and maintains the stability of the ink; the present invention improves the curing The flexibility of the film ensures the good adhesion of the overprint ink film, and the rapid curing improves the product quality.

Description

A kind of UV ink with fast curing and good adhesion and preparation method thereof

technical field

The invention relates to an ink and a preparation method thereof, in particular to a UV ink with fast curing and good 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 curing mechanism of UV-curable ink is that after the photoinitiator in the system directly or indirectly absorbs the ultraviolet light energy, it transitions from the ground state to the excited singlet state, and jumps to the excited triplet state through intersystem jumping; after the excited singlet state or triplet state undergoes After unimolecular or bimolecular chemical action, reactive fragments are generated that can initiate monomer polymerization, and these fragments can be free radicals, cations, anions, or ionic radicals. 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 purpose of the present invention is to provide a kind of UV printing ink with fast curing and good adhesion and its preparation method.

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

A UV ink with fast curing and good adhesion is prepared from the following raw materials in parts by weight: organic pigment 1-3, polyurethane acrylate 30-40, ethyl acrylate 10-14, methyl ethyl ketone 10-12, amino resin 20- 23. Dimethicone 4-5, Humic Acid 1-2, Stearyl Alcohol 1-2, Methacrylate 3-4, Vinyl Ether Carbamate 20-24, 2-Hydroxy-2 Methanol Base—1 phenyl—1 acetone 4-6, tributyl tin trichloride 2-3, additive 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 ink with fast curing and good adhesion of the present invention is made by the following specific steps: first add organic pigments, polyurethane acrylate, ethyl acrylate, methyl ethyl ketone, amino resin, dimethyl silicone oil, humic acid, stearyl alcohol Stir and mix well, heat to 80-90°C, stir for 25-35 minutes; then add the remaining ingredients except 2-hydroxy-2-methyl-1-phenyl-1-acetone, stir and react for 3-5 hours; finally cool down To 60-70°C, add 2-hydroxy-2-methyl-1-phenyl-1-acetone, stir and react for 40-50 minutes, after cooling, grind to obtain a 20-40 μm slurry.

The beneficial effects of the present invention are: the auxiliary agent of the present invention improves the toughness of the ink, makes the ink disperse evenly, and maintains the stability of the ink; the present invention improves the flexibility of the cured film, ensures good adhesion of the overprint ink film, and cures Quickly, the product quality has been improved.

specific implementation plan

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

A UV ink with fast curing and good adhesion, prepared from the following raw materials in parts by weight (kg): organic pigment 1, polyurethane acrylate 30, ethyl acrylate 10, methyl ethyl ketone 10, amino resin 20, dimethyl silicone oil 4 , humic acid 1, octadecyl alcohol 1, methacrylate 3, vinyl ether type carbamate 20, 2-hydroxyl-2 methyl-1 phenyl-1 acetone 4, tributyltin trichloride 2. Additive 4;

The additives are prepared from the following raw materials in parts by weight (kg): 0.2 nanometer diatomite powder, 0.2 nanometer mica powder, 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 React for 30-40 minutes, that is.

The UV ink with fast curing and good adhesion of the present invention is made by the following specific steps: first add organic pigments, polyurethane acrylate, ethyl acrylate, methyl ethyl ketone, amino resin, dimethyl silicone oil, humic acid, stearyl alcohol Stir and mix well, heat to 80-90°C, stir for 25-35 minutes; then add the remaining ingredients except 2-hydroxy-2-methyl-1-phenyl-1-acetone, stir and react for 3-5 hours; finally cool down To 60-70°C, add 2-hydroxy-2-methyl-1-phenyl-1-acetone, stir and react for 40-50 minutes, after cooling, grind to obtain a 20-40 μm slurry.

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. the UV ink that a quick solidifying sticking power is good, it is characterized in that, be made up of the raw material of following weight part: pigment dyestuff 1-3, urethane acrylate 30-40, ethyl propenoate 10-14, methylethylketone 10-12, aminoresin 20-23, dimethyl silicone oil 4-5, humic acid 1-2, stearyl alcohol 1-2, methacrylic ester 3-4, vinyl ether-type carbamate 20-24,2-hydroxyl-2-methyl-1-phenyl-1-acetone 4-6, tributyl tin trichloride 2-3, auxiliary agent 4-5; Described auxiliary agent is prepared from by the raw material of following weight part: nano diatomite powder 0.2-0.3, nano mica powder 0.2-0.3, silane resin acceptor kh-550 2-3, morpholine 1-2, neopentyl glycol 3-4, oxidation inhibitor 10351-2, linking agent TAC2-3, tri (propylene glycol) diacrylate 10-12,1-Methoxy-2-propyl acetate 5-10, Tenox PG 2-3, coix seed oil 1-2; Its preparation method is by each mixing of materials, is heated to 60-70 DEG C, and stirring reaction 30-40 minute, to obtain final product.

2. the UV ink that quick solidifying sticking power is good according to claim 1, it is characterized in that, be made up of following concrete steps: first add pigment dyestuff, urethane acrylate, ethyl propenoate, methylethylketone, aminoresin, dimethyl silicone oil, humic acid, stearyl alcohol stirring and evenly mixing, be heated to 80-90 DEG C, stir 25-35 minute; Then all the other remaining components except 2-hydroxyl-2-methyl-1-phenyl-1-acetone are added, stirring reaction 3-5 hour; Finally be cooled to 60-70 DEG C, add 2-hydroxyl-2-methyl-1-phenyl-1-acetone, stirring reaction 40-50 minute, after cooling, grinding obtains 20-40 μm of slurry, to obtain final product.