Summary of the invention
In view of this, the object of the present invention is to provide a kind of metal sanding to protect ink, protection ink provided by the invention has good sticking power to metal sheet, and is easy to deinking.
The invention provides a kind of metal sanding protection ink, with weight parts, comprising:
The acid number of the polyacrylic ester of described acroleic acid esterification is 50 ~ 150mgKOH/g;
The polymerization degree of described novolac resin is 2 ~ 20.
Preferably, described UV monomer comprises one or more in tri (propylene glycol) diacrylate, hexanediyl ester and propylene glycol diacrylate.
Preferably, described solvent comprises alcohol.
Preferably, described auxiliary agent comprises one or more in anti-settling agent, defoamer, flow agent, dispersion agent, light trigger and filler.
Preferably, described anti-settling agent comprises one or more in hydrophilic aerosil, organobentonite and castor oil derivative.
Preferably, described defoamer comprises one or more in BYK-051 defoamer, BYK-052 defoamer, BYK-053 defoamer, HX-2300 defoamer, HX-2310 defoamer, HX-2500 defoamer, HX-2550 defoamer and HX-2560 defoamer.
Preferably, described flow agent comprises polyether-modified dimethyl siloxane and/or polysiloxane polyether copolymer.
Preferably, described dispersion agent comprises one or more in EFKA-4009 dispersion agent, EFKA-4010 dispersion agent, EFKA-4011 dispersion agent, EFKA-4015 dispersion agent, EFKA-4016 dispersion agent, EFKA-4017 dispersion agent, EFKA-4400 dispersion agent, EFKA-4401 dispersion agent, EFKA-4403 dispersion agent, BYK-161 dispersion agent, BYK-162 dispersion agent, BYK-163 dispersion agent, BYK-164 dispersion agent, BYK-168 dispersion agent, BYK-170 dispersion agent, BYK-171 dispersion agent and TEGO-655 dispersion agent.
Preferably, described light trigger to comprise in light trigger-BP light trigger-651, light trigger-1173, light trigger-184, light trigger-ITX, light trigger-970, light trigger-TPO and light trigger-369 one or more.
Preferably, described filler comprises one or more in calcium carbonate, talcum powder, barium sulfate and transparent powder.
Compared with prior art, the invention provides a kind of metal sanding protection ink.Metal sanding protection ink provided by the invention, with weight parts, comprising: the polyacrylic ester of acroleic acid esterification 15 ~ 25 parts; Novolac resin 10 ~ 20 parts; UV monomer 5 ~ 10 parts; Solvent 5 ~ 15 parts; Auxiliary agent 35 ~ 55 parts; The acid number of the polyacrylic ester of described acroleic acid esterification is 50 ~ 150mgKOH/g; The polymerization degree of described novolac resin is 2 ~ 20.The present invention is by optimizing the formula of protection ink; in protection ink, with the addition of the acroleic acid esterification of low acid number polyacrylic ester and the polymerization degree are the novolac resin of 2 ~ 20; not only increase protection ink at the sticking power of metal sheet surface, also shorten in alkaline cleaning procedure the deinking time protecting ink.Experimental result shows; metal sanding protection ink provided by the invention has good sticking power at sheet metal surface; the sheet metal being coated with protection ink there will not be deinking and burr phenomenon in frosted process; the sheet metal being simultaneously coated with protection ink, under the aqueous sodium hydroxide solution of 5wt% rinses, can complete deinking within 10 seconds.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of metal sanding protection ink, with weight parts, comprising:
The acid number of the polyacrylic ester of described acroleic acid esterification is 50 ~ 150mgKOH/g;
The polymerization degree of described novolac resin is 2 ~ 20.
Metal sanding provided by the invention protection ink comprises the polyacrylic ester of acroleic acid esterification, novolac resin, UV monomer, solvent and auxiliary agent.Wherein, the polyacrylic ester of described acroleic acid esterification is the acrylic copolymer with position, side acrylate group, and its main chain is formed by several vinyl monomer copolymerization.Described vinyl monomer mainly comprise in (methyl) methyl acrylate, (methyl) ethyl propenoate, (methyl) butyl acrylate, vinylbenzene, toxilic acid (acid anhydride) and functionalized propylene acid esters one or more.In the present invention, the acid number of the polyacrylic ester of described acroleic acid esterification is 50 ~ 150mgKOH/g; In an embodiment provided by the invention, the acid number of the polyacrylic ester of described acroleic acid esterification is 80 ~ 100mgKOH/g.In an embodiment provided by the invention, the viscosity (25 DEG C) of the polyacrylic ester of described acroleic acid esterification is 40000 ~ 60000cps.In an embodiment provided by the invention, the model of the polyacrylic ester of described acroleic acid esterification is 6310-100 and/or S2510.In an embodiment provided by the invention, the polyacrylic ester of the acroleic acid esterification that model is 6310-100 is provided by Changxing, Taiwan chemical company, and the polyacrylic ester of the acroleic acid esterification that model is S2510 provides by opening up occasion coating.In the present invention, the content of polyacrylic ester in protection ink of described acroleic acid esterification is 15 ~ 25 weight parts; In an embodiment provided by the invention, the content of polyacrylic ester in protection ink of described acroleic acid esterification is 20 ~ 25 weight parts.In the present invention, the effect of polyacrylic ester in protection ink of acroleic acid esterification is cross-linked with UV monomer reaction under action of ultraviolet light, thus make protection ink solidification.
In the present invention, acting as of described novolac resin acts synergistically with the polyacrylic ester of acroleic acid esterification, thus improves the sticking power of protection ink and shorten the alkali cleaning time of protection ink.In an embodiment provided by the invention, described novolac resin has formula (I) structure:
formula (I);
In formula (I), n represents the polymerization degree.
In the present invention, the polymerization degree of described novolac resin is 2 ~ 20; In an embodiment provided by the invention, the polymerization degree of described novolac resin is 4 ~ 10.In the present invention, the content of described novolac resin in protection ink is 10 ~ 20 weight parts; In an embodiment provided by the invention, the content of described novolac resin in protection ink is 15 ~ 20 weight parts.
In the present invention, described UV monomer also known as ultraviolet-curing paint reactive monomer, the polyacrylic ester cross-linking reaction act as with acroleic acid esterification under action of ultraviolet light of described UV monomer, thus make protection ink solidification.In an embodiment provided by the invention, described UV monomer comprise in tri (propylene glycol) diacrylate (TPGDA), hexanediyl ester (HDDA) and propylene glycol diacrylate (DPGDA) one or more.Comprise in the embodiment of hexanediyl ester and propylene glycol diacrylate at a UV monomer provided by the invention, the mass ratio of hexanediyl ester and propylene glycol diacrylate is 5 ~ 7:2 ~ 3.In the present invention, the content of described UV monomer in protection ink is 5 ~ 10 weight parts; In an embodiment provided by the invention, the content of described UV monomer in protection ink is 5 ~ 7 weight parts.
In the present invention, other components act as in dissolution of metals frosted protection ink of described solvent.In an embodiment provided by the invention, described solvent comprises alcohol; In another embodiment provided by the invention, described solvent comprise in methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, amylalcohol and hexanol one or more.In the present invention, the content of described solvent in protection ink is 5 ~ 15 weight parts; In an embodiment provided by the invention, the content of described solvent in protection ink is 8 ~ 10 weight parts.
In the present invention, the performance acting as improvement protection ink further of described auxiliary agent.In one embodiment of the invention, described auxiliary agent comprises one or more in anti-settling agent, defoamer, flow agent, dispersion agent, light trigger and filler.
In an embodiment provided by the invention, described anti-settling agent comprise in hydrophilic aerosil, organobentonite and castor oil derivative one or more.In an embodiment provided by the invention, the model of described hydrophilic aerosil is A-200 and/or M5.In an embodiment provided by the invention, the hydrophilic aerosil that model is A-200 is provided by Degussa, and the hydrophilic aerosil that model is M5 is provided by Cabot.In an embodiment provided by the invention, the content of described anti-settling agent in protection ink is 0.5 ~ 1 weight part.
In an embodiment provided by the invention, described defoamer comprise in BYK-051 defoamer, BYK-052 defoamer, BYK-053 defoamer, HX-2300 defoamer, HX-2310 defoamer, HX-2500 defoamer, HX-2550 defoamer and HX-2560 defoamer one or more.In an embodiment provided by the invention, BYK-051 defoamer, BYK-052 defoamer and BYK-053 defoamer are provided by German Bi Ke, are provided in HX-2300 defoamer, HX-2310 defoamer, HX-2500 defoamer, HX-2550 defoamer and HX-2560 defoamer by China's auxiliary agent.In an embodiment provided by the invention, the content of described defoamer in protection ink is 0.1 ~ 0.4 weight part; In another embodiment provided by the invention, the content of described defoamer in protection ink is 0.3 ~ 0.4 weight part.
In an embodiment provided by the invention, described flow agent comprises polyether-modified dimethyl siloxane and/or polysiloxane polyether copolymer.In an embodiment provided by the invention, the model of described polyether-modified dimethyl siloxane is BYK-333 and/or BKY306.In an embodiment provided by the invention, the polyether-modified dimethyl siloxane that model is BYK-333 and BKY306 is provided by German Bi Ke.In an embodiment provided by the invention, the model of described polysiloxane polyether copolymer is GLIDE-450.In an embodiment provided by the invention, the polysiloxane polyether copolymer that model is GLIDE-450 provides by German enlightening is high.In an embodiment provided by the invention, the content of described flow agent in protection ink is 0.3 ~ 0.5 weight part.
In an embodiment provided by the invention, described dispersion agent comprise in EFKA-4009 dispersion agent, EFKA-4010 dispersion agent, EFKA-4011 dispersion agent, EFKA-4015 dispersion agent, EFKA-4016 dispersion agent, EFKA-4017 dispersion agent, EFKA-4400 dispersion agent, EFKA-4401 dispersion agent, EFKA-4403 dispersion agent, BYK-161 dispersion agent, BYK-162 dispersion agent, BYK-163 dispersion agent, BYK-164 dispersion agent, BYK-168 dispersion agent, BYK-170 dispersion agent, BYK-171 dispersion agent and TEGO-655 dispersion agent one or more.In an embodiment provided by the invention, EFKA-4009 dispersion agent, EFKA-4010 dispersion agent, EFKA-4011 dispersion agent, EFKA-4015 dispersion agent, EFKA-4016 dispersion agent, EFKA-4017 dispersion agent, EFKA-4400 dispersion agent, EFKA-4401 dispersion agent and EFKA-4403 dispersion agent are provided by EFKA auxiliary agent, BYK-161 dispersion agent, BYK-162 dispersion agent, BYK-163 dispersion agent, BYK-164 dispersion agent, BYK-168 dispersion agent, BYK-170 dispersion agent and BYK-171 dispersion agent are provided by German Bi Ke, and TEGO-655 dispersion agent provides by German enlightening is high.In an embodiment provided by the invention, the content of described dispersion agent in protection ink is 0.5 ~ 1 weight part; In an embodiment provided by the invention, the content of described dispersion agent in protection ink is 0.8 ~ 1 weight part.
In an embodiment provided by the invention, described light trigger to comprise in light trigger-BP light trigger-651, light trigger-1173, light trigger-184, light trigger-ITX, light trigger-970, light trigger-TPO and light trigger-369 one or more.Comprise in the embodiment of light trigger-1173 and light trigger-184 at a light trigger provided by the invention, the mass ratio of described light trigger-1173 and light trigger-184 is 4 ~ 6:1 ~ 3.In an embodiment provided by the invention, the content of described light trigger in protection ink is 3 ~ 7 weight parts; In another embodiment provided by the invention, the content of described light trigger in protection ink is 5 ~ 7 weight parts.
In an embodiment provided by the invention, described filler comprise in calcium carbonate, talcum powder, barium sulfate and transparent powder one or more.Described in an embodiment provided by the invention, the particle diameter of filler is 3000 ~ 8000 orders; In another embodiment provided by the invention, the particle diameter of described filler is 4000 ~ 5000 orders.In an embodiment provided by the invention, the content of described filler in protection ink is 35 ~ 45 weight parts; In another embodiment provided by the invention, the content of described filler in protection ink is 35.6 ~ 39.4 weight parts.In the present invention, described filler protection ink in act as enhancing sticking power, improve alkali cleaning time buck seepage velocity.
In the present invention, the various mixing of materials directly comprised by above-mentioned metal sanding protection ink are even, can obtain metal sanding provided by the invention protection ink.The invention provides in an embodiment, the hybrid mode of the various materials of described composition metal sanding protection ink is:
First by UV monomer and solvent, then the mixed system of UV monomer and solvent composition is mixed with novolac resin, after it mixes, then the polyacrylic ester of the mixed system obtained and acroleic acid esterification and auxiliary agent are mixed, obtain compound.Finally refinement is carried out to described compound, obtain metal sanding provided by the invention protection ink.The fineness of the protection ink that described refinement obtains is preferably 5 ~ 10 μm, is more preferably 6 ~ 7 μm.
The present invention is by optimizing the formula of protection ink; in protection ink, with the addition of the acroleic acid esterification of low acid number polyacrylic ester and the polymerization degree are the novolac resin of 2 ~ 20; not only increase protection ink at the sticking power of metal sheet surface, also shorten in alkaline cleaning procedure the deinking time protecting ink.Experimental result shows; metal sanding protection ink provided by the invention has good sticking power at sheet metal surface; the sheet metal being coated with protection ink there will not be deinking and burr phenomenon in frosted process; be coated with the sheet metal of protection ink under the aqueous sodium hydroxide solution of 5wt% rinses simultaneously; deinking can be completed within 10 seconds, not remain.
For the purpose of clearer, be described in detail below by following examples.
Embodiment 1
Get the raw materials ready:
Polyacrylic ester (S2510, the exhibition occasion coating of the acroleic acid esterification of 20 weight parts, acid number 80 ~ 100mgKOH/g, viscosity 40000 ~ 60000cps (25 DEG C)), the HDDA of 5 weight parts, the novolac resin (polymerization degree 4 ~ 10) with formula (I) structure of 20 weight parts, the ethanol of 10 weight parts, anti-settling agent (the A-200 of 1 weight part, Degussa), defoamer (the BYK-052 of 0.3 weight part, Germany Bi Ke), flow agent (the BKY306 of 0.3 weight part, Germany Bi Ke), dispersion agent (the EFKA-4010 of 1 weight part, EFKA auxiliary agent), the light trigger-1173 of 4 weight parts, the light trigger-184 of 1 weight part, 5000 order calcium carbonate of 37.4 weight parts.
Preparation:
In stirrer, first add ethanol and HDDA, add resol again, high-speed stirring is after 15 minutes, add the polyacrylic ester of acroleic acid esterification, dispersion agent, anti-settling agent, defoamer, light trigger and flow agent more successively, after stirring, add calcium carbonate under the low speed, high-speed stirring 10-15 minute, obtains compound.Described compound is refined to fineness and is less than 7 μm in three-roller, obtains metal sanding protection ink.
Embodiment 2
Get the raw materials ready:
Polyacrylic ester (S2510, the exhibition occasion coating of the acroleic acid esterification of 25 weight parts, acid number 80 ~ 100mgKOH/g, viscosity 40000 ~ 60000cps (25 DEG C)), the HDDA of 5 weight parts, the novolac resin (polymerization degree 4 ~ 10) with formula (I) structure of 15 weight parts, the ethanol of 8 weight parts, anti-settling agent (the M5 of 1 weight part, Cabot), defoamer (the BYK-052 of 0.3 weight part, Germany Bi Ke), flow agent (the BKY306 of 0.3 weight part, Germany Bi Ke), dispersion agent (the BYK-164 of 1 weight part, Germany Bi Ke), the light trigger-1173 of 4 weight parts, the light trigger-184 of 1 weight part, 5000 order calcium carbonate of 39.4 weight parts.
Preparation:
In stirrer, first add ethanol and HDDA, add resol again, high-speed stirring is after 15 minutes, add the polyacrylic ester of acroleic acid esterification, dispersion agent, anti-settling agent, defoamer, light trigger and flow agent more successively, after stirring, add calcium carbonate under the low speed, high-speed stirring 10-15 minute, obtains compound.Described compound is refined to fineness and is less than 7 μm in three-roller, obtains metal sanding protection ink.
Embodiment 3
Get the raw materials ready:
Polyacrylic ester (S2510, the exhibition occasion coating of the acroleic acid esterification of 23 weight parts, acid number 80 ~ 100mgKOH/g, viscosity 40000 ~ 60000cps (25 DEG C)), the HDDA of 5 weight parts, the DPGDA of 2 weight parts, the novolac resin (polymerization degree 4 ~ 10) with formula (I) structure of 17 weight parts, the ethanol of 10 weight parts, anti-settling agent (the A-200 of 1 weight part, Degussa), defoamer (the BYK-052 of 0.3 weight part, Germany Bi Ke), flow agent (the BKY306 of 0.3 weight part, Germany Bi Ke), dispersion agent (the EFKA-4010 of 1 weight part, EFKA auxiliary agent), the light trigger-1173 of 4 weight parts, the light trigger-184 of 1 weight part, 5000 order calcium carbonate of 35.6 weight parts.
Preparation:
In stirrer, first add ethanol, DPGDA and HDDA, add resol again, high-speed stirring is after 15 minutes, add the polyacrylic ester of acroleic acid esterification, dispersion agent, anti-settling agent, defoamer, light trigger and flow agent more successively, after stirring, add calcium carbonate under the low speed, high-speed stirring 10-15 minute, obtains compound.Described compound is refined to fineness and is less than 7 μm in three-roller, obtains metal sanding protection ink.
Embodiment 4
Performance test
Sticking power is tested:
The metal sanding protection ink using the web plate of more than 300 orders embodiment 1 ~ 3 to be provided is printed on roughness respectively and is not more than on the aluminium sheet of 0.4 micron, at 250mJ/cm
2solidify 3 seconds under condition, use the skin grinder of double end PVDF (polyvinylidene difluoride (PVDF)) bistrique to carry out frosted process to sheet metal afterwards.After frosted process terminates; observe the sheet metal being coated with the metal sanding protection ink that embodiment 1 ~ 3 provides respectively; find that the protection ink of sheet metal surface does not come off, sheet metal thing burr, illustrate that the metal sanding protection ink that embodiment 1 ~ 3 provides has good sticking power.
Alkali cleaning deinking is tested:
Respectively alkali cleaning is carried out to the sheet metal after above-mentioned frosted process, the aqueous sodium hydroxide solution that the alkaline wash of use is 5wt%.Alkali cleaning is coated with the protection ink that embodiment 1 provides metal sheet after 7 seconds completes deinking, and metal sheet surface is without ink residue; Alkali cleaning is coated with the protection ink that embodiment 2 provides metal sheet after 7 seconds completes deinking, and metal sheet surface is without ink residue; Alkali cleaning is coated with the protection ink that embodiment 3 provides metal sheet after 8 seconds completes deinking, and metal sheet surface is without ink residue.Can be found out by alkali cleaning deinking test, the deinking time of the metal sanding protection ink that embodiment 1 ~ 3 provides is shorter, and uses the alkaline wash of lower concentration just can realize deinking.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.