Background technology
UV paint is photo-cured coating, and it is current Application comparison furniture lacquer widely, and principal feature has: through the process of intensive ultraviolet photocuring, and color stability, for a long time Chang Xin are environment friendly and pollution-free.UV paint mainly applies in plate fitment, and gloss varnish is the more difficult paint done in UV coating, more difficult control in construction, and use spraying application waste larger, efficiency is not high, and use showering film thicker, cost compare is high.In order to head it off, UV paint have employed this method of radium-shine (laser) roller application in recent years, solve conventional roll overpainting fullness ratio poor, the problem that surface levelling is bad, constructional difficulties, cost with problems such as efficiency aspects, thus can reach excellent mirror effect at short notice, making roller coat UV paint the surface effect that can reach and spray PU paint, is the optimal selection of high-grade plate fitment.Can coating be saved, product quality and production efficiency can be improved greatly.
But the glossy varnish that prior art adopts radium-shine roller coat to make does not reach expected effect, with the surface effect difference paint of spraying PU very far, client is difficult to acceptance.Main deficiency is: 1. paint film exists heavy slivering print, and levelling is undesirable, does not reach the mirror effect of PU spraying; 2. paint film is uneven, causes gloss of film uneven; 3. glue spread of constructing does not increase, all at 20 ~ 30g/m
2, paint film fullness ratio is not reached, and brightness is not high; 4. paint cost control high, be difficult to promote.These problem prior aries also could not be well solved, because this is glossy varnish, belong to high finish coat varnish, high gloss must be had, splendid mirror effect, surface has some flaws all more obvious, the dull surface paint of technology similar on the market and priming paint lower to painted surface effect requirements, the more difficult discovery of surface spots, paint and production operation control than being easier to, so similar technique dull surface paint and priming paint all obtain good popularization, but light top coat top coat is not also well promoted.
Summary of the invention
The present invention will solve the deficiencies in the prior art part, a kind of UV glossy varnish for radium-shine roller coat is provided according to the weak point of prior art problem, the method is used to do UV glossy varnish, high fullness ratio can be issued in the situation that film is thinner, high levelling degree, has excellent mirror effect, not only improves overall coating efficiency and cost, and environmentally friendly, the discharge of organic solvent can be reduced.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
For a UV glossy varnish for radium-shine roller coat, by weight, comprise following raw material: urethane acrylate 30 ~ 40%, epoxy acrylate 20 ~ 30%, monomer 30 ~ 36%, light trigger 1 ~ 7%, auxiliary agent 1 ~ 3%.
Further, in the above-mentioned UV glossy varnish for radium-shine (laser) roller application, urethane acrylate used has extraordinary snappiness, shrinkability is lower, effectively can reduce the string stress of system, have good booster action to the raising of sticking power, there is low optical index, have good raising to brightness aspect, urethane acrylate can be aliphatic modified urethane acrylate, aromatic modified urethane acrylate one or more; Epoxy acrylate shrinkability is lower, and can effectively reduce the string stress of system, optical index is low, has good raising to brightness aspect.So the present inventor carries out after experiment gropes, selecting following several commercially available urethane acrylate to the commercially available urethane acrylate of multiclass and epoxy acrylate, as 6170 of Changxing, 2491 etc. of Baeyer.Select following several commercially available epoxy acrylate, the 6105-80 of three wood, the 622A-80 in Changxing, section Ningde 3215 etc., because these polyurethane acrylate and epoxy acrylate are commercially available, those skilled in the art commonly use, the concrete composition of its each commodity is fixing, so only need to select in this several commercially available polyurethane acrylate and epoxy acrylate each any one, buy in the UV glossy varnish formula adding to for radium-shine roller coat according to formula consumption and can realize the present invention.Monomer used is tri (propylene glycol) diacrylate (TPGDA), Viscoat 295 (TMPTA), 1, one or more in 6 hexanediyl esters (HDDA), ethoxylated trimethylolpropane triacrylate (EO-TMPTA), play reduction viscosity, increase hardness and scrath resistance, improve the effect of sticking power.Light trigger used is 1-hydroxyl-cyclohexyl-phenyl ketone (184), 2-hydroxy-2-methyl-1-phenyl-1-acetone (1173), 2,4, one or more in 6 (trimethylbenzoyl) diphenyl phosphine oxide (TPO).Auxiliary agent used is efficient vinylformic acid defoamer, as: BYK-055 etc.; Efficient vinylformic acid flow agent, as: BYK-358N etc.
Compared with prior art, the present invention is used for the UV glossy varnish of radium-shine roller coat, by weight, comprises following raw material: urethane acrylate 30 ~ 40%, epoxy acrylate 20 ~ 30%, monomer 30 ~ 36%, light trigger 1 ~ 7%, auxiliary agent 1 ~ 3%.Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify, can greatly improve production efficiency, and film forming glue spread is low, reduces costs greatly.Splendid mirror effect can be obtained after solidification, high gloss, high fullness ratio, the surface effect of PU clear lacquer can be reached.
Embodiment
Following examples are preferably filled a prescription for the UV glossy varnish of radium-shine roller coat; these formulas are non-limiting implementation; it is for illustrating the present invention, and the formula that those skilled in the art can filter out according to thinking of the present invention and proportioning of selecting materials completely is protection scope of the present invention.
Embodiment 1
For a UV glossy varnish for radium-shine roller coat, by weight, be made up of following material:
Urethane acrylate (6170 of Changxing): 40%,
Epoxy acrylate (6105-80 of three wood): 20%,
Monomer (TPGDA): 36%,
Light trigger: 1%,
Auxiliary agent: 3%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Embodiment 2
For a UV glossy varnish for radium-shine roller coat, by weight, be made up of following material:
Urethane acrylate (2491 of Baeyer): 38%,
Epoxy acrylate (622A-80 in Changxing): 22%,
Monomer (TMPTA): 35%,
Light trigger: 4%,
Auxiliary agent: 1%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Embodiment 3
For a UV glossy varnish for radium-shine roller coat, by weight, be made up of following material:
Urethane acrylate (6170 of Changxing): 36%,
Epoxy acrylate (section Ningde 3215): 24%,
Monomer (HDDA): 34%,
Light trigger: 5%,
Auxiliary agent: 1%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Embodiment 4
For a UV glossy varnish for radium-shine roller coat, by weight, be made up of following material:
Urethane acrylate (2491 of Baeyer): 34%,
Epoxy acrylate (6105-80 of three wood): 26%,
Monomer (EO-TMPTA): 35%,
Light trigger: 3%,
Auxiliary agent: 2%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Embodiment 5
For a UV glossy varnish for radium-shine roller coat, by weight, be made up of following material:
Urethane acrylate (6170 of Changxing): 32%,
Epoxy acrylate (622A-80 in Changxing): 28%,
Monomer (mixing of TPGDA, TMPTA): 30%,
Light trigger: 7%,
Auxiliary agent: 3%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Embodiment 6
For a UV glossy varnish for radium-shine roller coat, by weight, be made up of following material:
Urethane acrylate (2491 of Baeyer): 30%,
Epoxy acrylate (section Ningde 3215): 30%,
Monomer (mixing of HDDA, EO-TMPTA): 35%,
Light trigger: 4%,
Auxiliary agent: 1%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
The effect of currently available technology is undesirable, does not reach good effect, is mainly the selection of material and proportioning are used, such as:
Comparative example 1:
Epoxy acrylate (156 of double bond chemical industry): 30%,
Polyester acrylate (SM6605 of three wood): 20%,
Monomer (TPGDA): 45%,
Light trigger: 3%,
Auxiliary agent: 2%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Comparative example 2:
Polyester acrylate (SM6605 of three wood): 20%,
Amino acrylates (6119 of three wood): 35%,
Monomer (TPGDA): 40%,
Light trigger: 4%,
Auxiliary agent: 1%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Comparative example 3:
Urethane acrylate (2491 of Baeyer): 20%,
Epoxy acrylate (section Ningde 3215): 40%,
Monomer (mixing of HDDA, EO-TMPTA): 35%,
Light trigger: 4%,
Auxiliary agent: 1%.
Above-mentioned materials is made into UV glossy varnish by the painting method commonly used according to those skilled in the art, and with radium-shine (laser) roller coat roller on base material, glue spread is at 30 ~ 50g/m
2, 50 DEG C of levelling 1 ~ 2min, directly solidify.
Embodiment and comparative example traditional performance detected result, shown in following data:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
Outward appearance (range estimation) | Water-white is transparent | Water-white is transparent | Water-white is transparent | Water-white is transparent | Water-white is transparent | Water-white is transparent | Water-white is transparent | Water-white is transparent | Water-white is transparent |
Film effect (range estimation) | Mirror effect | Mirror effect | Mirror effect | Mirror effect | Mirror effect | Mirror effect | Low lightness | Fullness ratio is poor | Slivering is had to print |
Glue spread (weighting method g/m
2)
| 30~50 | 30~50 | 30~50 | 30~50 | 30~50 | 30~50 | 20~25 | 20~25 | 20~25 |
Viscosity (mpa.s) | 800~900 | 800~900 | 800~900 | 800~900 | 800~900 | 800~900 | 800~900 | 500~600 | 800~900 |
Pencil hardness | 2H | 2H | 2H | 2H | 2H | 2H | H | 3H | 2H |
60o glossiness | 100° | 100° | 100° | 100° | 100° | 100° | 90° | 90° | 90° |
Sticking power (hundred lattice methods) | ≤ 1 grade | ≤ 1 grade | ≤ 1 grade | ≤ 1 grade | ≤ 1 grade | ≤ 1 grade | 2 grades | 2 grades | 2 grades |
The above embodiment only have expressed embodiments of the present invention; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; in every case the technical scheme adopting the form of equivalent replacement or equivalent transformation to obtain, all should drop within protection scope of the present invention.