Background technology
With expanding economy and the progress of society, enhancing of the people to environmental protection consciousness, industrial production and correspondence are produced
The application of product gradually develops to zero-emission no pollution direction.In packages printing industry, people carry to packaging material and printing-ink
More strict requirements are gone out.
Ink serves key effect during packages printing, by print by word and pattern it is vivid present
On the substrate, the selection of ink kind and the quality of printing effect directly affect hobby of the consumer to product.In people's peace
In the continuous enhancing of full environmental consciousness, the ink of in the market experienced from benzene dissolubility to ester dissolubility, then to gradually promoting at present
Alcohol-soluble and water-based ink.The main flow ink of current each printing on substrates is still based on ester soluble ink, and solvent-based ink exists
It can be given off in production and printing process to the mankind and environment harmful VOC.In current environmental protection and
Under the overall situation that green production is the theme, solvent-based ink can not meet the requirement that people live for green production.For
Influence of the solvent-based ink to safety and environment is solved, scientific research technical staff has started the exploration to water-based ink, aqueous oil
It is black mainly to think water as solvent, the almost discharge without VOC in production printing process, with good
Security.But it is due to the boiling point height of water, the requirement of high speed printing can not be met as the water-based ink of solvent using water.Simultaneously
The surface tension of water is larger, and the wetability to pigment is poor, and the water-based ink color saturation being made is low, and attachment fastness is poor, in print
There is stifled version, knife silk phenomenon in swiped through journey, and the storage stability of ink is also poor.We lead in the present invention
The scattered pigment of special process is crossed, the water-based ink prepared has bright in luster, color saturation height, with shallow version printing
Reach the effect of the deep version printing of traditional solvent-borne ink;And knife line problem in printing process, storage stability also greatly improves.This
On the one hand sample greatly improved print speed printing speed, and the usage amount of ink is on the other hand also saved for client, cost is reduced.Resin
Controlled oneself from us the polyacrylate emulsion and polyaminoester emulsion of synthesis, the homemade emulsion with specific function structure has good
Good resistance to Ca2+, Mg2+Performance, can directly add running water, and also enhance water so during water-based ink is prepared
The redissolution performance of property ink, solves the problems, such as the stifled version in printing process.
At present, compared with traditional solvent-borne ink, the occupation rate of water-based ink commercially is relatively small, application market
The also very big rising space.Water-based ink also has huge advantage than traditional solvent-borne ink in terms of safety and environmental protection, but
It is that it is relatively poor than traditional solvent-borne ink at indivedual aspects such as drying property, attachment fastness, combined strength bination and printing performance.
A kind of environment-friendly type aqueous plastic inner printing proposed by the present invention is combined what gravure printing ink existed for plastic gravure waterborne ink
Problem is improved.The water-based ink is main using running water as solvent, in the preparation of the water-based ink and printing process,
The almost discharge without VOCs.The water-based ink improves water-based ink by the adjustment of formula and the improvement of ink preparation technology
Required property indices.
The content of the invention
In view of this, it is an object of the invention to provide a kind of environment-friendly type aqueous plastic inner printing be combined gravure printing ink and
Its preparation method.
In order to reach above-mentioned purpose, intaglio printing oil is combined the invention provides a kind of environment-friendly type aqueous plastic inner printing
Ink, includes by weight percentage:
Pigment 10% ~ 40%;
Waterborne wax 30 ~ 60%;
Wetting agent 0.1% ~ 5%;
Defoamer 0.1% ~ 1%;
Solvent 24% ~ 50%;
The percentage by weight sum of above-mentioned each component is 100%.
According in one embodiment of the invention, above-mentioned pigment used is aqueous red pigment, aqueous yellow face
Material, aqueous blue pigment, aqueous black pigment or aqueous white pigment.
According in one embodiment of the invention, the aqueous red pigment is that PR146 is red;The aqueous yellow face
Expect for PY14 Huangs;The aqueous blue pigment is PB15:3 phthalocyanine blues;The aqueous black pigment is PBL7 carbon blacks;It is described aqueous
Chinese white is PW6 titanium whites.
According in one embodiment of the invention, the waterborne binder is polyacrylate emulsion or polyaminoester emulsion
Or by 1:1~10:The poly acrylic acid-poly urethane mixed emulsion of 1 mixing;The consolidating for polyacrylate emulsion or polyaminoester emulsion contains
Amount is between the wt% of 30 wt% ~ 60.
According in one embodiment of the invention, the wetting agent is that HLB value is polyethenoxy ether class in 6 ~ 8
One or more in compound.
According in one embodiment of the invention, the defoamer is polyoxyethylene polyoxy propyl alcohol amidogen ether, polyoxy third
One or more in alkene glycerin ether, polyoxyethylene polyoxypropylene glycerin ether, dimethyl silicone polymer.
According in one embodiment of the invention, the solvent is the running water without any processing.
The present invention additionally provides a kind of preparation method of above-mentioned water-based ink simultaneously(I.e. micro- fat sizing process), including:
1) a certain amount of pigment, waterborne binder, wetting agent and solvent are mixed under 1000-15000r/min mixing speed
Uniformly, sol system is formed, then by further disperseing to form micro- fat slurry;
2) first a certain amount of defoamer is well mixed with solvent under 1000-5000r/min mixing speed, then by step 1)
Obtained product adds batch can formation mixture with a certain amount of waterborne binder and wetting agent, and with 1000-15000 speed
Persistently disperse in 0.1-0.8mm abrasive media, add mixed defoamer and solvent and slowly evenly add the material
Tank, makes it even into the mixture, obtains ink just finished product;
3) by step 2)Just finished product obtains finished product ink to obtained ink by filter again.
According in one embodiment of the invention, in step 2)In, the temperature in the batch can is no more than 50 DEG C.
In addition, invention further provides a kind of preparation method of above-mentioned water-based ink(Common process), including:
1)First a certain amount of defoamer is well mixed with solvent under 1000-5000r/min mixing speed, then will be a certain amount of
Pigment, waterborne binder and wetting agent add batch can and be well mixed under 1000-15000r/min mixing speed, then
Mixed defoamer and solvent are slowly evenly added into the batch can, make it even into the mixture, obtain ink just into
Product;
2)By step 1)Just finished product obtains finished product ink to obtained ink by filter again.
According in one embodiment of the invention, in step 2)In, the temperature in the batch can is no more than 50 DEG C.
The invention has the advantages that:
Water-based ink prepared by the present invention, compared to solvent-based ink, not only with nontoxic, non-ignitable not quick-fried, printing
Can the characteristic such as excellent;But also with bright in luster, color saturation is high and the features such as excellent printing effect.In addition, the ink can
To be printed on the various plastic basis materials such as BOPP, PET and PE, glue and solvent-free glue can be used to be combined, be respectively provided with good
Good attachment fastness(Up to 95%)And combined strength bination(Reach more than 1N/15mm).And solvent for use of the present invention is without any place
The running water of reason so that cost is reduced.
The water-based ink particle prepared is distributed to nanoscale by the present invention by above-mentioned formula and micro- fat sizing process, is obtained
To the water-based ink for preparing than traditional handicraft of water-based ink there is higher colour saturation concentration, the water-based ink is all kinds of
Attachment fastness on plastic basis material, combined strength bination is suitable with solvent-based ink, even better than solvent-based ink, and the water-based ink is same
When with good storage stability(Shelf-life was up to 12 months).The water prepared by the formula and method of above-mentioned optimization
Property ink also successfully solve the problems such as version and knife silk serious are blocked up present in intaglio plate plastic printing process.
Embodiment
In order to preferably illustrate the present invention, the preferred embodiments of the invention are carried out below in conjunction with instantiation specific
Description, it should be clearly that, following case study on implementation is the part that the present invention includes content and not all, describe example be for
Better illustrate the innovative point and its advantage of the present invention.
Gravure printing ink is combined the invention provides a kind of environment-friendly type aqueous plastic inner printing, is wrapped by weight percentage
Include:
Pigment 10% ~ 40%;
Waterborne wax 30 ~ 60%;
Wetting agent 0.1% ~ 5%;
Defoamer 0.1% ~ 1%;
Solvent 24% ~ 50%;
The percentage by weight sum of above-mentioned each component is 100%.
Pigment in above-mentioned formula is aqueous red pigment, aqueous yellow uitramarine, aqueous blue pigment, aqueous black face
Material or aqueous white pigment, wherein, aqueous red pigment is that PR146 is red, and aqueous yellow uitramarine is PY14 yellow, aqueous blue pigment
For PB15:3 phthalocyanine blues, aqueous black pigment is PBL7 carbon blacks, and aqueous white pigment is PW6 titanium whites.Pigment mentioned above is equal
For nano-level pigment, with good sun-proof performance and alkaline resistance properties.The water-based ink is in plastic sheeting by intaglio printing
On class base material, plastic sheeting(Such as BOPP, PET, PE etc.)For non-absorbability base material, with relatively low surface tension(Typically 30
×10-3N/m to 40 × 10-3N/m), and the surface tension of water is 72.593 × 10-3N/m, the aqueous of solvent is used as using running water
Ink has larger surface tension, and this when water-based ink prints on a plastic film easily to occur, and levelling is poor, attachment is firm
Spend low various defects.This problem is ideally solved with the water-based ink prepared by our homemade waterborne binders.From
Emulsion processed has been synthesized by the control to polymerized monomer, the selection of functional monomer and polymerization methodses and molecular weight and has met what is required
Emulsion.The wetting agent prioritizing selection polyethenoxy ether class compound being related in formula, defoamer prioritizing selection polydimethylsiloxanes
Alkane.
In addition, the present invention additionally provides a kind of preparation method of above-mentioned water-based ink simultaneously(I.e. micro- fat sizing process), including:
1) a certain amount of pigment, waterborne binder, wetting agent and solvent are mixed under 1000-15000r/min mixing speed
Uniformly, sol system is formed, then by further disperseing to form micro- fat slurry;
2) first a certain amount of defoamer is well mixed with solvent under 1000-5000r/min mixing speed, then by step 1)
Obtained product adds batch can formation mixture with a certain amount of waterborne binder and wetting agent, and with 1000-15000r/min
Speed persistently disperse in 0.1-0.8mm abrasive media, then by mixed defoamer and solvent slowly evenly plus
Enter the batch can, make it evenly into mixture, obtain ink just finished product;
3) by step 2) just finished product obtains finished product ink by filter again for obtained ink.
According in one embodiment of the invention, in step 2)In, the temperature in the batch can is no more than 50 DEG C.
The invention further relates to a kind of preparation method for preparing above-mentioned water-based ink(That is traditional handicraft), including:
1)First a certain amount of defoamer is well mixed with solvent under 1000-5000r/min mixing speed, then will be a certain amount of
Waterborne binder, pigment and wetting agent add batch can and be well mixed under 1000-15000r/min mixing speed, then
Mixed defoamer and solvent are slowly evenly added into the batch can, make it even into mixture, at the beginning of to obtain ink into
Product;
2)By step 1)Just finished product obtains finished product ink to obtained ink by filter again.
The ink particle diameter prepared by above-mentioned ink formulations and above-mentioned micro- fat sizing process is than oil that traditional handicraft is obtained
Black particle diameter is smaller, and evenly, test result is shown in Fig. 1 and Fig. 2 to particle diameter distribution.
Example 1:Gravure water-based ink used for plastic(It is red)
Red 10 parts of aqueous red pigment PR146 is weighed, water-based emulsion is made by oneself(Polyacrylate emulsion and polyaminoester emulsion press 1:1 mixes
The poly acrylic acid-poly urethane mixed emulsion of conjunction)60 parts, 0.4 part of wetting agent, defoamer(Polyoxyethylene polyoxy propyl alcohol amidogen ether)1 part,
28.6 parts of running water.When preparing ink, first by both the defoamer weighed and running water under 1500r/min mixing speed
It is well mixed, then by the aqueous red pigment PR146 weighed is red, self-control emulsion and wetting agent add batch can shape by the amount weighed
Resulting mixture, and persistently disperseed in 0.1-0.8mm abrasive media with 8000r/min speed, then disappear mixed
Infusion and running water slowly evenly add batch can, make it even into mixture, finished product at the beginning of to obtain ink, by the beginning of the ink
Finished product obtains finished product ink by filter again, and its performance indications see the table below shown in 1.During whole operation, in batch can
Temperature must not exceed 50 DEG C.
Example 2:Gravure water-based ink used for plastic(In vain)
40 parts of aqueous white pigment PW6 titanium whites are weighed, water-based emulsion is made by oneself(Polyacrylate emulsion and polyaminoester emulsion press 1:1 mixes
The poly acrylic acid-poly urethane mixed emulsion of conjunction)30 parts, 5 parts of wetting agent, defoamer(Polyoxyethylene polyoxypropylene glycerin ether)1 part,
24 parts of running water.When preparing ink, both the defoamer weighed and running water are mixed under 1500r/min mixing speed first
Close uniform, then aqueous white pigment PW6 titanium whites, self-control emulsion and wetting agent are added into batch can formation by the amount weighed and mix
Thing, and persistently disperseing in 0.1-0.8mm abrasive media in 8000r/min speed, then by mixed defoamer and
Running water slowly evenly adds the batch can, makes it even into mixture, finished product at the beginning of to obtain ink, by finished product at the beginning of the ink
Finished product ink is obtained by filter again, its performance indications see the table below shown in 1.During whole operation, the temperature in batch can
It must not exceed 50 DEG C.
Example 3:Gravure water-based ink used for plastic(It is yellow)
Weigh aqueous yellow uitramarine PY14 yellow 40 parts, make water-based emulsion by oneself(Polyacrylate emulsion and polyaminoester emulsion press 3:1 mixing
Poly acrylic acid-poly urethane mixed emulsion)50 parts, 1 part of wetting agent, 9 parts of running water, by the pigment weighed, water-based emulsion, profit
Humectant and running water are well mixed under 8000r/min mixing speed, form sol system, then by further disperseing to be formed
The micro- fat slurry of yellow;Weigh above-mentioned micro- fat and starch 30 parts, make 30 parts of water-based emulsion, 0.1 part of wetting agent, 1 part of defoamer, running water by oneself
38.9 parts.When preparing ink, both the defoamer weighed and running water are mixed under 2000r/min mixing speed first
It is even, then by micro- fat slurry, self-control emulsion and wetting agent by the amount addition batch can formation mixture weighed, and with 8000r/min's
Speed is persistently disperseed in 0.1-0.8mm abrasive media, then slowly evenly adds mixed defoamer and running water
Enter the batch can, make it even into the mixture, finished product at the beginning of to obtain ink obtains finished product at the beginning of the ink by filter again
Finished product ink, its performance indications see the table below shown in 1.During whole operation, the temperature in batch can should must not exceed 50 DEG C.
Example 4:Gravure water-based ink used for plastic(It is blue)
Weigh aqueous blue pigment PB15:3 40 parts of phthalocyanine blues, make emulsion by oneself(Polyacrylate emulsion and polyaminoester emulsion press 3:1 mixes
The poly acrylic acid-poly urethane mixed emulsion of conjunction)40 parts, 0.1 part of wetting agent, 19.9 parts of running water.By the above-mentioned pigment weighed,
Self-control emulsion is well mixed with wetting agent under 8000r/min mixing speed, forms sol system, then by further disperseing
Form blue micro- fat slurry;Weigh above-mentioned blue micro- fat and starch 40 parts, make 30 parts of emulsion by oneself, 0.06 part of wetting agent, 0.5 part of defoamer,
29.44 parts of running water.It is first that both the defoamer weighed and running water is fast in 2000r/min stirring when preparing ink
Degree is lower well mixed.Above-mentioned blue micro- fat slurry, self-control emulsion and wetting agent are added batch can formation by the amount weighed and mixed again
Thing, and persistently being disperseed in 0.1-0.8mm abrasive media with 8000r/min speed, then by mixed defoamer and
Running water slowly evenly adds the batch can, makes it even into the mixture, finished product at the beginning of to obtain ink, by the beginning of the ink into
Product obtain finished product ink by filter again, and its performance indications see the table below shown in 1.During whole operation, the temperature in batch can
Degree should must not exceed 50 DEG C.
Example 5:Gravure water-based ink used for plastic(It is black)
50 parts of aqueous black pigment PBL7 carbon blacks are weighed, water-based emulsion is made by oneself(Polyacrylate emulsion and polyaminoester emulsion press 10:1
The poly acrylic acid-poly urethane mixed emulsion of mixing)50 parts, by the pigment weighed and water-based emulsion 8000r/min stirring
It is well mixed under speed, forms sol system, then by further disperseing to obtain the micro- fat slurry of black;Weigh the micro- fat slurry 40 of black
Part, make 30 parts of emulsion, 4.5 parts of wetting agent, 0.1 part of defoamer, 25.4 parts of running water by oneself.When preparing ink, it will be weighed first
Both defoamer and running water be well mixed under 2000r/min mixing speed, then by the micro- fat slurry of above-mentioned black, self-control breast
Liquid and wetting agent add batch can formation mixture by the amount weighed, and with 8000r/min mixing speed 0.1-0.8mm's
Persistently disperse in abrasive media, mixed defoamer and running water are slowly evenly then added into the batch can, make its uniform
Into mixture, finished product at the beginning of the ink is obtained finished product ink, its performance indications by finished product at the beginning of to obtain ink by filter again
It see the table below shown in 1.During whole operation, the temperature in batch can should must not exceed 50 DEG C.
The common process of table 1(Example 1 and example 2)With micro- fat sizing process(Example 3-6)The performance of prepared ink refers to
Mark
From table 1 it follows that either oily made from micro- fat sizing process of the common process of example 1 or 2 or example 3,4,5
Ink, its sun-proof rank Jun≤4, fineness Jun≤20, viscosity is between 13-50s, and tinting strength, tinting power is between 100 ± 5;But
The attachment fastness and peeling force of ink made from micro- fat sizing process of example 3,4,5 are above the common process of embodiment 1 or 2,
Attachment fastness can reach more than 95%, and peeling force also can reach more than 1N/15mm.
More than, it is only the present invention preferably embodiment, but the protection domain of invention is not limited thereto, and it is any ripe
Know those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain of claims.