CN105038413B - A kind of transparent pigment slurry and preparation method thereof - Google Patents
A kind of transparent pigment slurry and preparation method thereof Download PDFInfo
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- CN105038413B CN105038413B CN201510471538.5A CN201510471538A CN105038413B CN 105038413 B CN105038413 B CN 105038413B CN 201510471538 A CN201510471538 A CN 201510471538A CN 105038413 B CN105038413 B CN 105038413B
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Abstract
The present invention provides a kind of transparent pigment slurries and preparation method thereof；It is grouped as by following group according to parts by weight：8~16 parts of pigment color chips；4~16 parts of matrix resin；0.1~1 part of wetting dispersing agent；67~68 parts of solvent.Compared with prior art, the present invention has following beneficial effect：(1) there is very high clear property, requirement of the colouring composite card paper for clear property before being able to satisfy；(2) two kinds and two or more graining pastes bring floating problem in transfer coatings be can effectively prevent；(3) preferable with the compatibility of transfer coatings, it is applied widely, it can be suitably used for most of transfer coatings；(4) compared with rear colouring, this graining paste is suitable for preceding colouring, this simple process, it is only necessary to the graining paste centainly matched is added in required transfer coatings, and reduced costs.
Description
Technical field
The present invention relates to a kind of transparent pigment slurries and preparation method thereof, belong to technical field of coatings.
Background technique
Transfer coatings are widely used on the gold and silver paper jam of the packagings such as cigarette, wine box, food, gift, cosmetics at present, and preceding
Colouring technology refers to that the graining paste for being added in transfer coatings and centainly matching makes transfer coatings have different colors, this work
Skill, which not only reduces production, has the process flow of color paper to be also greatly reduced cost, and still, different colours graining paste is added to
In transfer coatings, the problems such as often bringing floating, and there is clear property difference in many graining pastes, this is substantially reduced
Have the aesthetics of color paper, thus before constraining colouring transfer coatings and preceding colouring technology popularization and development.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of transparent pigment slurry and
Preparation method.
The present invention is achieved by the following technical solutions：
A kind of transparent pigment slurry, is grouped as by following group according to parts by weight：
Preferably, the pigment color chips includes monoazo pigment Huang/red, polyazo pigment yellow/red, azo contracting
It is red yellow etc. to close pigment, but is not limited to above-mentioned several.
Preferably, described matrix resin includes amino modified polyacrylate resin, aldehyde ketone resin/polyketone tree
At least one of rouge, NC Nitroncellulose.Polar group in these types of resin is easily absorbing on pigment particles surface, to face
Material particle is effectively wrapped up, other chain structures are stretched in solvent, thus pigment particles are evenly dispersed, play stabilization
Effect, meanwhile, difference of two kinds of pigment particles on properties can be reduced, such as molecular polarity difference, surface charge difference etc.,
The phenomenon that reduce floating.
Preferably, the wetting dispersing agent includes the modified polyether with high pigment affinity groups, has Gao Yan
Expect the modified poly esters of affinity groups, the polyacrylate with high pigment affinity groups, in organic silicon modified by polyether oxygen alkane extremely
Few one kind.But it is not limited to above-mentioned several, wetting dispersing agent plays the effect of steric hindrance between pigment particles, by pigment grain
Son effectively spreads out, and plays the role of stabilized.
Preferably, the solvent includes ethyl acetate, n-propyl acetate, propylene glycol monomethyl ether, one in butanone
Kind is several.
A kind of preparation method of transparent pigment slurry as the aforementioned, includes the following steps：
After solvent being stirred at normal temperature uniformly, it is heated to 40~60 DEG C；
Matrix resin and wetting dispersing agent are successively put into the solvent under stirring, after stirring evenly, stop stirring,
10~25 DEG C are cooled to, dispersion liquid is obtained；
Pigment color chips is put into, after being uniformly dispersed, grinding, the fineness to the dispersion liquid is no more than 5 μm；
The solid content of dispersion liquid and colour saturation are adjusted to theoretical value, 0.1~1h is stirred for, after crossing 300 mesh filter screens, is claimed
It packs again.
Basic principle of the invention is：
1, the polar group in matrix resin is easily absorbing on pigment particles surface, is effectively wrapped to pigment particles
It wraps up in, other chain structures are stretched in solvent, thus pigment particles are evenly dispersed, stabilization is played, meanwhile, two can be reduced
Difference of the kind pigment particles on properties, such as molecular polarity difference, surface charge difference etc., to reduce floating
The phenomenon that.
2, wetting dispersing agent plays the effect of steric hindrance between pigment particles, and pigment particles are effectively scatter
Come, plays the role of stabilized.
3, guarantee that low temperature environment can enable pigment particles surface have lower surface, prevent pigment particles from reuniting when being sanded
Together, to play good peptizaiton.
4, grinding is abundant, so that fineness≤5 μm, can make graining paste with higher clear in 5 μm of pigment particles below
Property.
Compared with prior art, the present invention has following beneficial effect：
(1) there is very high clear property, requirement of the colouring composite card paper for clear property before being able to satisfy；
(2) two kinds and two or more graining pastes bring floating problem in transfer coatings be can effectively prevent；
(3) preferable with the compatibility of transfer coatings, it is applied widely, it can be suitably used for most of transfer coatings；
(4) compared with rear colouring, this graining paste is suitable for preceding colouring, this simple process, it is only necessary to the face that will centainly match
Slurry is added in required transfer coatings, and is reduced costs.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1
A kind of preparation method of transparent pigment slurry, this method comprise the following steps that：
(1) by all solvents, i.e. 20 kilograms of 20 kilograms of n-propyl acetate, 40 kilograms of ethyl acetate, butanone investment premixings
In tank, and it is heated to 45 DEG C or so and is stirred；
(2) under stirring that 10 kilograms of Nitro cellulose resin and polyethers 0.4 with high pigment affinity groups is public
Jin is successively put into premix tank, is stirred 0.5 hour or so；
(3) it is to be mixed uniformly after turn off heating equipment and be cooled to 20 DEG C；
(4) it by 10 kilograms of monoazo pigment color chips investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinding,
Fineness to the dispersion liquid is no more than 5 μm；
(5) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.
Nitro cellulose resin specification described in embodiment 1 is that (viscosity for representing a certain concentration nitrocellulose solution is big by 1/2s
It is small), nitrogen content is 11.5~12.2%, the polyethers with high pigment affinity groups, such as BYK-163.
Embodiment 2
A kind of preparation method of transparent pigment slurry, this method comprise the following steps that：
(1) by all solvents, i.e., 50 kilograms of ethyl acetate, in 20 kilograms of investment premix tanks of propylene glycol monomethyl ether, and heat
It is stirred to 50 DEG C or so；
(2) under stirring by 13 kilograms of aldehyde ketone resin and modified poly ester with high pigment affinity groups (i.e. by height
The modified polyester of pigment affinity groups) 1 kilogram successively put into premix tank, stir 1 hour or so；
(3) it is to be mixed uniformly after turn off heating equipment and be cooled to 15 DEG C；
(4) it by 16 kilograms of azo condensation pigment red tab investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinds
Mill, the fineness to the dispersion liquid are no more than 5 μm；
(5) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.
The glass transition temperature of aldehyde ketone resin described in embodiment 2 is 120 DEG C, and hydroxyl value is 60~100mgKOH/g,
Molecular weight is 2~40,000, the modified poly ester with high pigment affinity groups, such as TEGO Dispers 670.
Embodiment 3
A kind of preparation method of transparent pigment slurry, this method comprise the following steps that：
(1) by all solvents, i.e. 15 kilograms of 30 kilograms of n-propyl acetate, 40 kilograms of ethyl acetate, butanone investment premixings
In tank, and it is heated to 45 DEG C or so and is stirred；
(2) by 5 kilograms of Nitro cellulose resin and polyacrylate with high pigment affinity groups under stirring
0.2 kilogram successively puts into premix tank, stirs 0.5 hour or so；
(3) it is to be mixed uniformly after turn off heating equipment and be cooled to 20 DEG C；
(4) it by 10 kilograms of monoazo pigment erotic film investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinds
Mill, the fineness to the dispersion liquid are no more than 5 μm；
(5) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.
Nitro cellulose resin specification described in embodiment 3 is 1/4s, and nitrogen content is 10.7~11.4%, described to have height
The polyacrylate of pigment affinity groups, such as Tech-5429.
Embodiment 4
A kind of preparation method of transparent pigment slurry, this method comprise the following steps that：
(1) by all solvents, i.e. 25 kilograms of 30 kilograms of ethyl acetate, 25 kilograms of propylene glycol monomethyl ether, butanone investment premixings
In tank, and it is heated to 60 DEG C or so and is stirred；
(2) under stirring by 0.5 kilogram of 12 kilograms of polyacrylate resin and organic silicon modified by polyether oxygen alkane successively
It puts into premix tank, stirs 1.5 hours or so；
(3) it is to be mixed uniformly after turn off heating equipment and be cooled to 25 DEG C；
(4) it by 8 kilograms of polyazo pigment red tab investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinding,
Fineness to the dispersion liquid is no more than 5 μm；
(5) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.
The glass transition temperature of polyacrylate resin described in embodiment 4 is 112 DEG C, and molecular weight is 6.5 ten thousand, described
Organic silicon modified by polyether oxygen alkane, such as DC-67.
Comparative example 1
(1) by all solvents, i.e. 20 kilograms of 20 kilograms of n-propyl acetate, 40 kilograms of ethyl acetate, butanone investment premixings
In tank, and it is heated to 45 DEG C or so and is stirred；
(2) under stirring that 10 kilograms of Nitro cellulose resin and polyethers 0.4 with high pigment affinity groups is public
Jin is successively put into premix tank, is stirred 0.5 hour or so；
(3) it is to be mixed uniformly after turn off heating equipment and be cooled to 20 DEG C；
(4) it by 10 kilograms of monoazo pigment erotic film investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinds
Mill, the fineness to the dispersion liquid are no more than 10 μm；
(5) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.
Nitro cellulose resin described in comparative example 1, the polyethers with high pigment affinity groups, monoazo pigment erotic film
With embodiment 1.
Comparative example 2
(1) by all solvents, i.e., 50 kilograms of ethyl acetate, in 20 kilograms of investment premix tanks of propylene glycol monomethyl ether, and heat
It is stirred to 50 DEG C or so；
(2) under stirring by 13 kilograms of aldehyde ketone resin and 1 kilogram of modified poly ester with high pigment affinity groups according to
In secondary investment premix tank, stir 1 hour or so；
(3) it by 16 kilograms of azo condensation pigment red tab investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinds
Mill, the fineness to the dispersion liquid are no more than 5 μm；
(4) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.
Aldehyde ketone resin described in comparative example 2, the modified poly ester with high pigment affinity groups, azo condensation pigment red tab
With embodiment 2.
Comparative example 3
(1) by all solvents, i.e. 15 kilograms and 10 kilograms 35 kilograms of n-propyl acetate, 40 kilograms of ethyl acetate, butanone lists
Azo pigments erotic film is put into premix tank, is stirred 0.5 hour；
(2) feed liquid in premix tank is pumped into sand mill, is ground 1.5 hours, detection inputs storage after fineness≤5 μm
In tank；
(3) solid content and colour saturation are measured, and is adjusted to theoretical value, then is slowly stirred 1 hour or so, is filtered with 300 mesh
Net is filtered feed liquid, cooling, weighing and bagging.
Monoazo pigment erotic film described in comparative example 3 is the same as monoazo pigment erotic film described in embodiment 3.
Comparative example 4
(1) by all solvents, i.e. 25 kilograms of 30 kilograms of ethyl acetate, 25 kilograms of propylene glycol monomethyl ether, butanone investment premixings
In tank, and it is heated to 60 DEG C or so and is stirred；
(2) under stirring by 0.05 kilogram of 12 kilograms of polyacrylate resin and organic silicon modified by polyether oxygen alkane successively
It puts into premix tank, stirs 1.5 hours or so；
(3) it is to be mixed uniformly after turn off heating equipment and be cooled to 25 DEG C；
(4) it by 16 kilograms of azo condensation pigment red tab investment premix tanks, stirs 0.5 hour, after being uniformly dispersed, grinds
Mill, the fineness to the dispersion liquid are no more than 5 μm；
(5) solid content of dispersion liquid and colour saturation are adjusted to theoretical value, is stirred for 0.1~1h, cross 300 mesh filter screens
Afterwards, weighing packaging.Polyacrylate resin described in comparative example 4, organic silicon modified by polyether oxygen alkane, polyazo pigment red tab are same
Embodiment 4.
Properties test is carried out to Examples 1 to 4, comparative example 1~4, testing standard is as described below.
Clear property test：Graining paste 4# bar is coated on black and white paper jam simultaneously, in 130 DEG C of constant temperature convection ovens
30s is dried, specimen page is put under D65 standard sources and compares clear property, is as a result indicated with A/B/C/D, A：Very clear, B：One
As clear, C：Send out dim, D：It is very dim.
Light transmittance test：Graining paste is uniformly diluted to 8% with ethyl acetate to contain admittedly, is coated on biaxial tension with 4# bar
On polyester film (BOPET), 30s is dried in 130 DEG C of constant temperature convection ovens, with the light transmission of light transmittance tester test coated film
Rate.
Loose colour Tachistoscope：By embodiment 1 (comparative example 1) and embodiment 2 (comparative example 2) respectively resulting pigment yellow slurry and
Paratonere is starched with 3:1 mass ratio, which is added to, to be multiplied in hawk board transfer coatings BL-0701A, and graining paste additional amount is transfer coatings
40% (mass parts), stir evenly, be coated on biaxially oriented polyester film (BOPET), control dry measure in 1.1-
1.4g/m2, it is then vacuum aluminum-coated, it is compounded in art post paperboard with BASF SD-615 glue later, under BOPET is gently removed
Come, obtains A (B) specimen page.
By embodiment 3 (comparative example 3) and embodiment 4 (comparative example 4), resulting pigment yellow slurry and paratonere are starched with 3 respectively：2
Mass ratio be added to and multiply in hawk board transfer coatings BL-0701A, graining paste additional amount is 50% (quality of transfer coatings
Part), it stirs evenly, is coated on biaxially oriented polyester film (BOPET), control dry measure in 1.1-1.4g/m2, then very
Sky is aluminized, and is compounded in art post paperboard with BASF SD-615 glue later, and BOPET is gently stripped down, and obtains C (D) specimen page.
Specimen page is put under D65 standard sources, with the naked eye watches loose colour degree, usually red floats on upper layer, if specimen page
It is partially red and there is the red of " dotted " or " cloud " shape to float on specimen page upper layer, then it is flooding phenomenon.As a result with A/B/C/D come table
Show, A：Without loose colour B：More frivolous color C：Medium loose colour D：Serious loose colour.
Heatproof test：The square specimen page that 2cm*2cm size is cut on above-mentioned gained A, B, C, D specimen page, specimen page is put
1min is toasted on aluminium-foil paper, being placed in constant temperature convection oven, 100 DEG C of initial temperature, 5 DEG C of increasing extent of temperature, until specimen page applies
Layer baking is bad, and record dries the temperature of bad when.
Resistance to ethanol test：Ethyl alcohol is dipped with rayon balls, is wiped on A, B, C, D specimen page, until coating shedding, record is wiped
The number wiped.
VOC test：VOC detection is carried out to A, B, C, D specimen page according to national standard YC263-2008.
Properties test is carried out to embodiment 1-4, comparative example 1-4 and A, B, C, D specimen page, as a result sees below table.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (2)
1. a kind of preparation method of transparent pigment slurry, which is characterized in that include the following steps：
After solvent being stirred at normal temperature uniformly, it is heated to 40~60 DEG C；
Matrix resin and wetting dispersing agent are successively put into the solvent under stirring, after stirring evenly, stop stirring, it is cooling
To 10~25 DEG C, dispersion liquid is obtained；
Pigment color chips is put into, after being uniformly dispersed, grinding, the fineness to the dispersion liquid is no more than 5 μm；
The solid content of dispersion liquid and colour saturation are adjusted to theoretical value, 0.1~1h is stirred for, after crossing 300 mesh filter screens, weighing packet
Dress；
The transparent pigment slurry is grouped as by following group according to parts by weight：
Described matrix resin include amino modified polyacrylate resin, aldehyde ketone resin/polyketone resin, in NC Nitroncellulose extremely
Few one kind；
The wetting dispersing agent includes that the modified polyether with high pigment affinity groups, modification with high pigment affinity groups are poly-
At least one of ester, the polyacrylate with high pigment affinity groups, organic silicon modified by polyether oxygen alkane.
2. the preparation method of transparent pigment slurry as described in claim 1, which is characterized in that the solvent includes acetic acid second
One or more of ester, n-propyl acetate, propylene glycol monomethyl ether, butanone.
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| CN105542613B (en) * | 2016-01-08 | 2018-04-06 | 上海维凯光电新材料有限公司 | High functional paint for PVC transparent footwear box |
| CN106800834B (en) * | 2017-01-17 | 2020-12-11 | 常州众杰复合材料有限公司 | High-performance compound color paste for pultrusion process and preparation method thereof |
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| CN103305062A (en) * | 2013-07-12 | 2013-09-18 | 三棵树涂料股份有限公司 | Environment-friendly general color paste and preparation method thereof |
| CN103756411A (en) * | 2013-12-30 | 2014-04-30 | 杭州浙大海维特化工科技有限公司 | Special ink-jet printing ink for PVC (polyvinyl chloride) cable and preparation method |
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| CN101358040A (en) * | 2007-07-31 | 2009-02-04 | 上海富臣化工有限公司 | Pigment type colourant using ethanol as solvent and producing method thereof |
| CN103351719A (en) * | 2013-06-24 | 2013-10-16 | 广州市番禺科迪色彩有限公司 | Preparation method of nano-solvent organic yellow color paste |
| CN103387769A (en) * | 2013-06-24 | 2013-11-13 | 广州市番禺科迪色彩有限公司 | Preparation method of nanometer solvent type organic red color paste |
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| CN103305062A (en) * | 2013-07-12 | 2013-09-18 | 三棵树涂料股份有限公司 | Environment-friendly general color paste and preparation method thereof |
| CN103756411A (en) * | 2013-12-30 | 2014-04-30 | 杭州浙大海维特化工科技有限公司 | Special ink-jet printing ink for PVC (polyvinyl chloride) cable and preparation method |
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