A kind of metal sanding protects ink
Technical field
The invention belongs to ink area more particularly to a kind of metal sanding is protected to protect ink.
Background technology
The frosting technology of sheet metal generally includes following steps:Clean sheet metal, silk-screen printing protection ink, ink
It is dry, frosted, alkali cleaning removal ink, water cleaning plate, drying and processing, finishing oil, drying and packaging.Protection ink is sheet metal mill
The crux raw material of sand technique, the protection ink used earliest are solvent-based ink, and there is smell is larger, ink dries for this ink
The problem of dry relatively slow, ink baking line length, high energy consumption and low production efficiency.Therefore, in order to reduce energy consumption, production efficiency is improved,
Alkali solubility UV curable ink starts to be applied to protection ink area in recent years.
The Chinese patent of Application No. 201410010072.4 discloses a kind of UV light choline and washes resin and its preparation
The preparation method of method and frosted ink, the patent are made using high acid value UV-cured resin, UV monomers and auxiliary agent as raw material
Alkali cleaning stamp frosted ink, the curing rate of the alkali cleaning stamp frosted ink is fast, and more environmentally friendly, but the alkali cleaning stamp frosted
Adhesive force of the ink on metal substrate surface is poor, and the time of alkali cleaning deinking is longer.
The content of the invention
In view of this, it is an object of the invention to provide a kind of metal sandings to protect ink, protection oil provided by the invention
Ink has metallic plate good adhesive force, and is easy to deinking.
The present invention provides a kind of metal sandings to protect ink, in terms of parts by weight, including:
The acid value of the polyacrylate of the acroleic acid esterification is 50~150mgKOH/g;
The degree of polymerization of the thermoplastic phenolic resin is 2~20.
Preferably, the UV monomers include tri (propylene glycol) diacrylate, hexanediyl ester and dipropyl two
One or more in alcohol diacrylate.
Preferably, the solvent includes alcohol.
Preferably, the auxiliary agent includes one kind in anti-settling agent, antifoaming agent, levelling agent, dispersant, photoinitiator and filler
It is or a variety of.
Preferably, the anti-settling agent is included in hydrophilic aerosil, organobentonite and castor oil derivative
It is one or more.
Preferably, the antifoaming agent includes BYK-051 antifoaming agent, BYK-052 antifoaming agent, BYK-053 antifoaming agent, HX-
2300 antifoaming agent, HX-2310 antifoaming agent, HX-2500 antifoaming agent, HX-2550 antifoaming agent and one kind in HX-2560 antifoaming agent or
It is a variety of.
Preferably, the levelling agent includes polyether-modified dimethyl siloxane and/or polysiloxane polyether copolymer.
Preferably, the dispersant include EFKA-4009 dispersants, EFKA-4010 dispersants, EFKA-4011 dispersants,
EFKA-4015 dispersants, EFKA-4016 dispersants, EFKA-4017 dispersants, EFKA-4400 dispersants, EFKA-4401 disperse
Agent, EFKA-4403 dispersants, BYK-161 dispersants, BYK-162 dispersants, BYK-163 dispersants, BYK-164 dispersants,
One or more in BYK-168 dispersants, BYK-170 dispersants, BYK-171 dispersants and TEGO-655 dispersants.
Preferably, the photoinitiator includes photoinitiator-BP photoinitiators -651, photoinitiator -1173, light-initiated
It is one or more in agent -184, photoinitiator-ITX, photoinitiator -970, photoinitiator-TPO and photoinitiator -369.
Preferably, the filler includes the one or more in calcium carbonate, talcum powder, barium sulfate and transparent powder.
Compared with prior art, the present invention provides a kind of metal sandings to protect ink.Metal sanding provided by the invention
Ink is protected, in terms of parts by weight, including:15~25 parts of the polyacrylate of acroleic acid esterification;Thermoplastic phenolic resin 10~
20 parts;5~10 parts of UV monomers;5~15 parts of solvent;35~55 parts of auxiliary agent;The acid value of the polyacrylate of the acroleic acid esterification
For 50~150mgKOH/g;The degree of polymerization of the thermoplastic phenolic resin is 2~20.The present invention is by optimizing matching somebody with somebody for protection ink
Side is with the addition of polyacrylate and the degree of polymerization of the acroleic acid esterification of low acid value as 2~20 thermoplasticity phenol in ink is protected
Urea formaldehyde not only increases adhesive force of the protection ink in metal sheet surface, also shortens and the de- of ink is protected in alkaline cleaning procedure
The black time.The experimental results showed that metal sanding protection ink provided by the invention has good attachment in sheet metal surface
Power, the sheet metal coated with protection ink are not in deinking and flash phenomenon during frosted, while coated with protection
The sheet metal of ink can complete deinking in the case where the sodium hydrate aqueous solution of 5wt% rinses within 10 seconds.
Specific embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without making creative work belong to the model that the present invention protects
It encloses.
The present invention provides a kind of metal sandings to protect ink, in terms of parts by weight, including:
The acid value of the polyacrylate of the acroleic acid esterification is 50~150mgKOH/g;
The degree of polymerization of the thermoplastic phenolic resin is 2~20.
Metal sanding protection ink provided by the invention includes polyacrylate, the thermoplastic phenolic resin of acroleic acid esterification
Fat, UV monomers, solvent and auxiliary agent.Wherein, the polyacrylate of the acroleic acid esterification has side position acrylate group
Acrylic acid series copolymer, main chain are copolymerized by several vinyl monomers.The vinyl monomer mainly includes (methyl) third
E pioic acid methyl ester, (methyl) ethyl acrylate, (methyl) butyl acrylate, styrene, maleic acid (acid anhydride) and functionalized propylene acid esters
In one or more.In the present invention, the acid value of the polyacrylate of the acroleic acid esterification is 50~150mgKOH/g;
In one embodiment provided by the invention, the acid value of the polyacrylate of the acroleic acid esterification is 80~100mgKOH/g.
In one embodiment provided by the invention, (25 DEG C) of the viscosity of the polyacrylate of the acroleic acid esterification for 40000~
60000cps.In one embodiment provided by the invention, the model 6310- of the polyacrylate of the acroleic acid esterification
100 and/or S2510.In one embodiment provided by the invention, the polyacrylic acid of the acroleic acid esterification of model 6310-100
Ester is provided by Taiwan Changxing chemical company, and the polyacrylate of the acroleic acid esterification of model S2510 is provided by exhibition occasion coating.
In the present invention, the content of the polyacrylate of the acroleic acid esterification in ink is protected is 15~25 parts by weight;In the present invention
In one embodiment of offer, the content of the polyacrylate of the acroleic acid esterification in ink is protected is 20~25 weight
Part.In the present invention, effect of the polyacrylate of acroleic acid esterification in ink is protected is mono- with UV under action of ultraviolet light
Precursor reactant is crosslinked, so that protection ink solidification.
In the present invention, the thermoplastic phenolic resin act as cooperate with work with the polyacrylate of acroleic acid esterification
With so as to improve the adhesive force of protection ink and shorten the alkali cleaning time of protection ink.In one embodiment provided by the invention
In, the thermoplastic phenolic resin has formula (I) structure:
Formula (I);
In formula (I), n represents the degree of polymerization.
In the present invention, the degree of polymerization of the thermoplastic phenolic resin is 2~20;In one embodiment provided by the invention
In, the degree of polymerization of the thermoplastic phenolic resin is 4~10.In the present invention, the thermoplastic phenolic resin is in protection ink
In content be 10~20 parts by weight;In one embodiment provided by the invention, the thermoplastic phenolic resin is in protection oil
Content in ink is 15~20 parts by weight.
In the present invention, the UV monomers are also known as ultraviolet-curing paint activated monomer, and the UV monomers are act as
Under action of ultraviolet light with the polyacrylate cross-linking reaction of acroleic acid esterification so that protection ink solidification.It is provided in the present invention
One embodiment in, the UV monomers include tri (propylene glycol) diacrylate (TPGDA), hexanediyl ester
(HDDA) and the one or more in propylene glycol diacrylate (DPGDA).Include in a UV monomer provided by the invention
In the embodiment of hexanediyl ester and propylene glycol diacrylate, hexanediyl ester and dipropylene glycol dipropyl
The mass ratio of olefin(e) acid ester is 5~7:2~3.In the present invention, content of the UV monomers in ink is protected is 5~10 weight
Part;In one embodiment provided by the invention, content of the UV monomers in ink is protected is 5~7 parts by weight.
In the present invention, the other components acting as in dissolving metal sanding protection ink of the solvent.In the present invention
In one embodiment of offer, the solvent includes alcohol;In another embodiment provided by the invention, the solvent includes first
One or more in alcohol, ethyl alcohol, normal propyl alcohol, isopropanol, n-butanol, isobutanol, amylalcohol and hexanol.In the present invention, it is described
Content of the solvent in ink is protected is 5~15 parts by weight;In one embodiment provided by the invention, the solvent is being protected
Content in ink is 8~10 parts by weight.
In the present invention, the performance for acting as further improving protection ink of the auxiliary agent.In the reality of the present invention
It applies in example, the auxiliary agent includes the one or more in anti-settling agent, antifoaming agent, levelling agent, dispersant, photoinitiator and filler.
In one embodiment provided by the invention, the anti-settling agent includes hydrophilic aerosil, organic swelling
One or more in soil and castor oil derivative.In one embodiment provided by the invention, the hydrophilic gas phase dioxy
The model A-200 and/or M5 of SiClx.In one embodiment provided by the invention, the hydrophilic gas phase two of model A-200
Silica is provided by Degussa, and the hydrophilic aerosil of model M5 is provided by Cabot.Provided by the invention one
In a embodiment, content of the anti-settling agent in ink is protected is 0.5~1 parts by weight.
In one embodiment provided by the invention, the antifoaming agent include BYK-051 antifoaming agent, BYK-052 antifoaming agent,
BYK-053 antifoaming agent, HX-2300 antifoaming agent, HX-2310 antifoaming agent, HX-2500 antifoaming agent, HX-2550 antifoaming agent and HX-
One or more in 2560 antifoaming agent.In one embodiment provided by the invention, BYK-051 antifoaming agent, BYK-052 defoamings
Agent and BYK-053 antifoaming agent are provided by German Bi Ke, HX-2300 antifoaming agent, HX-2310 antifoaming agent, HX-2500 antifoaming agent, HX-
It is provided in 2550 antifoaming agent and HX-2560 antifoaming agent by China's auxiliary agent.In one embodiment provided by the invention, the defoaming
Content of the agent in ink is protected is 0.1~0.4 parts by weight;In another embodiment provided by the invention, the antifoaming agent
Content in ink is protected is 0.3~0.4 parts by weight.
In one embodiment provided by the invention, the levelling agent includes polyether-modified dimethyl siloxane and/or gathers
Silicone-polyether copolymer.In one embodiment provided by the invention, the model of the polyether-modified dimethyl siloxane
BYK-333 and/or BKY306.In one embodiment provided by the invention, model BYK-333's and BKY306 is polyether-modified
Dimethyl siloxane is provided by German Bi Ke.In one embodiment provided by the invention, the polysiloxane polyether copolymer
Model GLIDE-450.In one embodiment provided by the invention, the silicone polyether of model GLIDE-450 is total to
Polymers is provided by German enlightening is high.In one embodiment provided by the invention, content of the levelling agent in ink is protected is
0.3~0.5 parts by weight.
In one embodiment provided by the invention, the dispersant includes EFKA-4009 dispersants, EFKA-4010 point
Powder, EFKA-4011 dispersants, EFKA-4015 dispersants, EFKA-4016 dispersants, EFKA-4017 dispersants, EFKA-
4400 dispersants, EFKA-4401 dispersants, EFKA-4403 dispersants, BYK-161 dispersants, BYK-162 dispersants, BYK-
163 dispersants, BYK-164 dispersants, BYK-168 dispersants, BYK-170 dispersants, BYK-171 dispersants and TEGO-655 points
One or more in powder.In one embodiment provided by the invention, EFKA-4009 dispersants, EFKA-4010 disperse
Agent, EFKA-4011 dispersants, EFKA-4015 dispersants, EFKA-4016 dispersants, EFKA-4017 dispersants, EFKA-4400
Dispersant, EFKA-4401 dispersants and EFKA-4403 dispersants are provided by Efka auxiliary agent, BYK-161 dispersants, BYK-162
Dispersant, BYK-163 dispersants, BYK-164 dispersants, BYK-168 dispersants, BYK-170 dispersants and BYK-171 dispersants
It is provided by German Bi Ke, TEGO-655 dispersants are provided by German enlightening is high.In one embodiment provided by the invention, described point
Content of the powder in ink is protected is 0.5~1 parts by weight;In one embodiment provided by the invention, the dispersant exists
It is 0.8~1 parts by weight to protect the content in ink.
In one embodiment provided by the invention, the photoinitiator includes photoinitiator-BP photoinitiators -651, light
Initiator -1173, photoinitiator -184, photoinitiator-ITX, photoinitiator -970, photoinitiator-TPO and photoinitiator -369
Middle one or more.Include the implementation of photoinitiator -1173 and photoinitiator -184 in a photoinitiator provided by the invention
In example, the mass ratio of the photoinitiator -1173 and photoinitiator -184 is 4~6:1~3.In a reality provided by the invention
It applies in example, content of the photoinitiator in ink is protected is 3~7 parts by weight;In another embodiment provided by the invention
In, content of the photoinitiator in ink is protected is 5~7 parts by weight.
In one embodiment provided by the invention, the filler includes calcium carbonate, talcum powder, barium sulfate and transparent powder
In one or more.The grain size of filler described in one embodiment provided by the invention is 3000~8000 mesh;In this hair
In another embodiment of bright offer, the grain size of the filler is 4000~5000 mesh.In one embodiment provided by the invention
In, content of the filler in ink is protected is 35~45 parts by weight;It is described in another embodiment provided by the invention
Content of the filler in ink is protected is 35.6~39.4 parts by weight.In the present invention, work of the filler in ink is protected
With for enhance adhesive force, improve alkali cleaning when buck seepage velocity.
In the present invention, directly the various materials that above-mentioned metal sanding protection ink includes are uniformly mixed, you can obtain
Metal sanding provided by the invention protects ink.In the present invention provides one embodiment, the composition metal sanding protection oil
The hybrid mode of various materials of ink is:
First UV monomers and solvent are mixed, the mixed system and thermoplastic phenolic resin for then forming UV monomers and solvent
Mixing, treats it after mixing, then obtained mixed system is mixed with the polyacrylate and auxiliary agent of acroleic acid esterification, obtains
Mixture.Finally the mixture is refined, obtains metal sanding protection ink provided by the invention.The refinement obtains
The fineness of protection ink be preferably 5~10 μm, more preferably 6~7 μm.
The present invention by optimize protection ink formula, be with the addition of in ink protect low acid value acroleic acid esterification gather
Acrylate and the thermoplastic phenolic resin that the degree of polymerization is 2~20, not only increase attachment of the protection ink in metal sheet surface
Power also shortens the deinking time that ink is protected in alkaline cleaning procedure.The experimental results showed that metal sanding protection provided by the invention
Ink has good adhesive force in sheet metal surface, and the sheet metal coated with protection ink is not in during frosted
Deinking and flash phenomenon, while the sheet metal coated with protection ink is in the case where the sodium hydrate aqueous solution of 5wt% rinses, it can be
Deinking is completed within 10 seconds, is not remained.
For the sake of becoming apparent from, it is described in detail below by following embodiment.
Embodiment 1
Stock:
Polyacrylate (S2510, the exhibition occasion coating of the acroleic acid esterification of 20 parts by weight;80~100mgKOH/g of acid value, stick
Spend 40000~60000cps (25 DEG C)), the HDDA of 5 parts by weight, the thermoplastic phenolic resin with formula (I) structure of 20 parts by weight
Fat (degree of polymerization 4~10), the ethyl alcohol of 10 parts by weight, the anti-settling agent (A-200, Degussa) of 1 parts by weight, the defoaming of 0.3 parts by weight
Agent (BYK-052, Germany Bi Ke), the levelling agent (BKY306, Germany Bi Ke) of 0.3 parts by weight, the dispersant (EFKA- of 1 parts by weight
4010th, Efka auxiliary agent), photoinitiator -184,37.4 parts by weight of photoinitiator -1173,1 parts by weight of 4 parts by weight
5000 mesh calcium carbonate.
It prepares:
In mixer, ethyl alcohol and HDDA are first added in, adds phenolic resin, high-speed stirred adds after 15 minutes, then successively
Enter polyacrylate, dispersant, anti-settling agent, antifoaming agent, photoinitiator and the levelling agent of acroleic acid esterification, after stirring evenly,
Calcium carbonate is added under low speed, high-speed stirred 10-15 minutes obtains mixture.The mixture is refined to fineness in three-roller
Less than 7 μm, metal sanding protection ink is obtained.
Embodiment 2
Stock:
Polyacrylate (S2510, the exhibition occasion coating of the acroleic acid esterification of 25 parts by weight;80~100mgKOH/g of acid value, stick
Spend 40000~60000cps (25 DEG C)), the HDDA of 5 parts by weight, the thermoplastic phenolic resin with formula (I) structure of 15 parts by weight
Fat (degree of polymerization 4~10), the ethyl alcohol of 8 parts by weight, the anti-settling agent (M5, Cabot) of 1 parts by weight, the antifoaming agent of 0.3 parts by weight
(BYK-052, Germany Bi Ke), the levelling agent (BKY306, Germany Bi Ke) of 0.3 parts by weight, the dispersant (BYK- of 1 parts by weight
164th, Germany Bi Ke), 5000 mesh of photoinitiator -184,39.4 parts by weight of photoinitiator -1173,1 parts by weight of 4 parts by weight
Calcium carbonate.
It prepares:
In mixer, ethyl alcohol and HDDA are first added in, adds phenolic resin, high-speed stirred adds after 15 minutes, then successively
Enter polyacrylate, dispersant, anti-settling agent, antifoaming agent, photoinitiator and the levelling agent of acroleic acid esterification, after stirring evenly,
Calcium carbonate is added under low speed, high-speed stirred 10-15 minutes obtains mixture.The mixture is refined to fineness in three-roller
Less than 7 μm, metal sanding protection ink is obtained.
Embodiment 3
Stock:
Polyacrylate (S2510, the exhibition occasion coating of the acroleic acid esterification of 23 parts by weight;80~100mgKOH/g of acid value, stick
Spend 40000~60000cps (25 DEG C)), the HDDA of 5 parts by weight, the DPGDA of 2 parts by weight, 17 parts by weight have formula (I) structure
Thermoplastic phenolic resin (degree of polymerization 4~10), the ethyl alcohol of 10 parts by weight, the anti-settling agent (A-200, Degussa) of 1 parts by weight,
The antifoaming agent (BYK-052, Germany Bi Ke) of 0.3 parts by weight, the levelling agent (BKY306, Germany Bi Ke) of 0.3 parts by weight, 1 weight
Part dispersant (EFKA-4010, Efka auxiliary agent), the photoinitiators of photoinitiator -1173,1 parts by weight of 4 parts by weight -
5000 mesh calcium carbonate of 184,35.6 parts by weight.
It prepares:
In mixer, ethyl alcohol, DPGDA and HDDA first being added in, adds phenolic resin, high-speed stirred is after 15 minutes, then
Polyacrylate, dispersant, anti-settling agent, antifoaming agent, photoinitiator and the levelling agent of acroleic acid esterification are sequentially added, is stirred evenly
Afterwards, calcium carbonate is added under the low speed, and high-speed stirred 10-15 minutes obtains mixture.The mixture is refined in three-roller
Fineness is less than 7 μm, obtains metal sanding protection ink.
Embodiment 4
Performance test
Adhesive force is tested:
The metal sanding protection ink that Examples 1 to 3 provides is respectively printed at roughness using web plates more than 300 mesh
On aluminium sheet no more than 0.4 micron, in 250mJ/cm2Under the conditions of cure 3 seconds, afterwards using double end PVDF (Kynoar)
The grinding machine of bistrique carries out frosted processing to sheet metal.Frosted after treatment is observed carried coated with Examples 1 to 3 respectively
The sheet metal of the metal sanding protection ink of confession, it is found that the protection ink of sheet metal surface is not fallen off, sheet metal object hair
Side illustrates that the metal sanding protection ink that Examples 1 to 3 provides has good adhesive force.
Alkali cleaning deinking is tested:
Alkali cleaning is carried out to above-mentioned frosted treated sheet metal respectively, the alkali wash water used is the sodium hydroxide of 5wt%
Aqueous solution.The metallic plate completion deinking for the protection ink that alkali cleaning provides after 7 seconds coated with embodiment 1, and metal sheet surface oil-free
Ink residual;The metallic plate completion deinking for the protection ink that alkali cleaning provides after 7 seconds coated with embodiment 2, and metal sheet surface oil-free
Ink residual;The metallic plate completion deinking for the protection ink that alkali cleaning provides after 8 seconds coated with embodiment 3, and metal sheet surface oil-free
Ink residual.By alkali cleaning deinking test as can be seen that Examples 1 to 3 provide metal sanding protect ink the deinking time compared with
It is short, and achieve that deinking using the alkali wash water of low concentration.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.