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CN105038488B - Possess offset printing transfer coatings of high anti-scratch performance and preparation method thereof - Google Patents

Possess offset printing transfer coatings of high anti-scratch performance and preparation method thereof Download PDF

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Publication number
CN105038488B
CN105038488B CN201510471596.8A CN201510471596A CN105038488B CN 105038488 B CN105038488 B CN 105038488B CN 201510471596 A CN201510471596 A CN 201510471596A CN 105038488 B CN105038488 B CN 105038488B
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offset printing
high anti
transfer coatings
resin
modified
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CN105038488A (en
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虞明东
许泽
陈超
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Shanghai Weikai Optoelectronic New Materials Co Ltd
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Shanghai Weikai Optoelectronic New Materials Co Ltd
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Abstract

The invention provides a kind of offset printing transfer coatings for possessing high anti-scratch performance, it is made up of the following component of weight percent:Polyurethane-modified polyacrylic acid tree 10~15%;Modified aldehyde ketone resin 5~12%;Cellulose ester resin 5~8%;Siliceous smooth auxiliary agent 0.2~0.5%;Wax powder additive 0.8~1.5%;Solvent 63~79%.Compared with prior art, the present invention has following beneficial effect:1st, the present invention, using polyurethane modified acrylic resin and modified aldehyde ketone resin, makes coating have more preferable hardness and elastoplasticity by preferred resin system;Coating surface smoothness is improved by siliceous slipping agent;By adding wax powder, the scratch resistance anti-wear performance of coating is further improved.Production prepares simple, low cost.

Description

Possess offset printing transfer coatings of high anti-scratch performance and preparation method thereof
Technical field
The present invention relates to a kind of offset printing transfer coatings for possessing high anti-scratch performance and preparation method thereof, belong to coating technology neck Domain.
Background technology
Because transfer aluminum plated paper relative to PET coating cards or aluminium foil composite card paper has obvious cost, environment-friendly advantage, institute With, at present, domestic packaging industry is generally upgraded to transfer aluminum plated technique, using the technique productions wrapping paper not only It is economic and environment-friendly, and with it is nonpoisonous and tasteless the characteristics of.Prevailing with shifting process, follow-up typography is to transfer coatings It is required that also more and more higher.Particularly in offset printing technique, due to special transfering process, paper coating surface is particularly easy to Scratch, causes product rejection.And the excellent thermosetting transfering system of anti-scratch performance, its offset printing performance is unable to reach printing will Ask.The common practice that offset printing anti-scratch is solved the problems, such as in packaging industry is the last layer water varnish again on transfer coated, it is ensured that The anti-scratch performance of coating.Although can so solve the problems, such as offset printing anti-scratch, due to many processes varnished together, life can be made Produce cost significantly raised.At present, on the market also without a kind of offset printing transfer coatings for possessing high anti-scratch performance.
The content of the invention
For defect of the prior art, shift and apply it is an object of the invention to provide a kind of offset printing for possessing high anti-scratch performance Material and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of offset printing transfer coatings for possessing high anti-scratch performance, it is made up of the following component of weight percent:
The use of polyurethane-modified polyacrylic resin can avoid coating from not possessing elastoplasticity, can make the anti-scratch performance of formula The defect of difference.If consumption is higher than 15% this scope, coating can be made partially soft, there is viscous leeward danger;If less than 10%, bullet will do not had The effect of plasticity.
The use of modified aldehyde ketone resin can avoid coating hardness not high, the defect being easily scratched.If consumption is higher than 12%, meeting Make coating partially crisp, cause in coating wrapup procedure, coating shedding;If less than 5%, not having the effect for improving coating hardness.
The use of cellulose ester resin can avoid the defect that coating will not possess offset printing performance.If consumption is higher than 8%, The anti-scratch performance of coating can be influenceed;If less than 5%, will be unable to ensure printing performance.
Siliceous smooth auxiliary agent can avoid coating from not possessing smoothness, surface easily abrasive defect.If consumption is higher than 0.5%, Coated film is excessively smooth, can produce winding slippage problems;If less than 0.2%, not having smooth effect.
Wax powder additive can avoid the reduction of coating abrasion performance and resistance to marring.If consumption is higher than 1.5%, it will influence is applied The transparency of layer;If less than 0.8%, not having the effect of wearability and resistance to marring.
Preferably, the polyurethane-modified polyacrylic resin refers to methyl acrylate, ethyl acrylate, propylene Any group of acid butyl ester, methyl methacrylate, butyl methacrylate and the copolymer of urethane monomer or their copolymers Close, urethane monomer composition is not less than 10%, and the homopolymer or copolymer 50<Tg<90 DEG C, molecular weight is 5~80,000. Modified acrylic acid has more preferable elastoplasticity, makes coating be less susceptible to be scratched, and modified acrylic acid can carry for coating For more excellent adhesive force.
Preferably, the modified aldehyde ketone resin refer to ethylidene azanol, amido urea, maleic anhydride to hexamethylene Ketone-formaldehyde resin is modified, and makes it have higher Tg, its Tg>130℃.Modified high Tg aldehyde ketone resins, with higher hard Degree, can make coating harder, more resistant to wiping.
Preferably, the cellulose ester resin includes cellulose acetate, cellulose acetate propionate, acetate butyrate fibre One or more in dimension element, the molecular weight of cellulose esters is 7000~20000.
Preferably, the siliceous smooth auxiliary agent includes organosiloxane, polyether-modified polysiloxanes, poly- diformazan Radical siloxane etc., but be not limited to above-mentioned several.The addition of siliceous smooth auxiliary agent, can significantly improve the smooth of coating surface Property, the coefficient of friction of coating surface is reduced, the effect of anti-scratch is reached.
Preferably, the solvent is ethyl acetate, n-propyl acetate, ethanol, propylene glycol monomethyl ether, isopropanol, third At least one in glycol ether.
A kind of preparation method of the offset printing transfer coatings of high anti-scratch performance as described in the present invention, it comprises the following steps:
Solvent is placed in reactor, stirring and heater is opened, solvent is well mixed, temperature is kept for 50 DEG C;
Resin Composition is put into reactor, it is 150~250rpm to control stir speed (S.S.), stirs 1~5h, makes resin Composition Dissolving is abundant;
After resin Composition is completely dissolved, auxiliary agent is put into reactor, it is 100~150rpm to control stir speed (S.S.), 20min is fully dispersed to auxiliary agent, finally, and final products are obtained using 250 mesh filter-cloth filterings.
Compared with prior art, the present invention has following beneficial effect:
1st, the present invention increases the elastoplasticity of coating using polyurethane modified acrylic resin by preferred resin system, Using modified aldehyde ketone resin, coating is set to have higher hardness;Coating surface smoothness is improved by siliceous slipping agent, hard thing is drawn Cross, be difficult scratch;By adding wax powder, the scratch resistance anti-wear performance of coating is further improved.The effect of synthesis resin and auxiliary agent, makes Transfer coated to have certain elastoplasticity and hardness, surface is smooth, is difficult to be scratched by hard thing.
2nd, common transfer coatings that anti-scratch performance poor good compared to offset printing performance, due to preferred resin system and helping Agent, makes it have preferable elastoplasticity, hardness and surface smoothness, with excellent anti-scratch performance, can not varnish directly Printing;
3rd, it is good compared to anti-scratch performance, can not direct offset printing thermosetting transfer coatings, the present invention improving erasibility On the premise of energy, while with preferable offset printing, can direct offset printing, be not scratched.
4th, compared to the guarantee anti-scratch technique of varnishing generally used at present, it can not be varnished, saved using this coating Production cost;
5th, production prepares simple, low cost.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area 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 domain.
Heretofore described polyurethane-modified polyacrylic resin refers to methyl acrylate, ethyl acrylate, acrylic acid fourth Any combination of ester, methyl methacrylate, butyl methacrylate and the copolymer of urethane monomer or their copolymers, gathers Urethane monomer composition is not less than 10%, and the homopolymer or copolymer 50<Tg<90 DEG C, molecular weight is 5~80,000.It is modified Acrylic acid there is more preferable elastoplasticity, make coating be less susceptible to be scratched, and modified acrylic acid can provide more excellent for coating Adhesive force.Referring to ethylidene azanol, amido urea, maleic anhydride to cyclohexanone-formaldehyde resin modification for aldehyde ketone resin is modified, Higher Tg is made it have, its Tg>130℃.Modified high Tg aldehyde ketone resins, with higher hardness, can make coating harder, more It is resistance to wipe.
Heretofore described cellulose ester resin includes cellulose acetate, cellulose acetate propionate, acetylbutyrylcellulose In one or more, the molecular weight of cellulose esters is 7000~20000.
Embodiment 1
A kind of component for offset printing transfer coatings for possessing high anti-scratch performance that the present embodiment is related to is as shown in the table:
Embodiment 2
A kind of component for offset printing transfer coatings for possessing high anti-scratch performance that the present embodiment is related to is as shown in the table:
Embodiment 3
A kind of component for offset printing transfer coatings for possessing high anti-scratch performance that the present embodiment is related to is as shown in the table:
Comparative example
A kind of component for offset printing transfer coatings for possessing high anti-scratch performance that this comparative example is related to is as shown in the table:
Contrast effect:
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in 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 the substance of the present invention.

Claims (6)

1. a kind of offset printing transfer coatings for possessing high anti-scratch performance, it is characterised in that by the following component group of weight percent Into:
The modified aldehyde ketone resin refers to be modified cyclohexanone-formaldehyde resin with ethylidene azanol, semicarbazides, maleic anhydride, makes It has higher Tg, its Tg>130℃;
The cellulose ester resin includes one kind or several in cellulose acetate, cellulose acetate propionate, acetylbutyrylcellulose Kind, the molecular weight of cellulose esters is 7000~20000.
2. possess the offset printing transfer coatings of high anti-scratch performance as claimed in claim 1, it is characterised in that described polyurethane-modified Polyacrylic resin refers to methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, methacrylic acid fourth The copolymer of ester and urethane monomer, urethane monomer composition is not less than 10%, and the copolymer 50<Tg<90 DEG C, molecule Measure as 5~80,000.
3. possess the offset printing transfer coatings of high anti-scratch performance as claimed in claim 1, it is characterised in that described siliceous smooth to help Agent includes polyether-modified polysiloxanes, dimethyl silicone polymer.
4. possess the offset printing transfer coatings of high anti-scratch performance as claimed in claim 1, it is characterised in that the wax powder additive Including polyethylene wax micro mist, polyamide wax, ptfe micropowder or polypropylene wax.
5. possess the offset printing transfer coatings of high anti-scratch performance as claimed in claim 1, it is characterised in that the solvent is acetic acid At least one in ethyl ester, n-propyl acetate, ethanol, propylene glycol monomethyl ether, isopropanol, propylene-glycol ethyl ether.
6. a kind of preparation method for the offset printing transfer coatings for possessing high anti-scratch performance as claimed in claim 1, it is characterised in that This method comprises the following steps:
Solvent is placed in reactor, stirring and heater is opened, solvent is well mixed, temperature is kept for 50 DEG C;
Resin Composition is put into reactor, it is 150~250rpm to control stir speed (S.S.), stirs 1~5h, dissolves resin Composition Fully;
After resin Composition is completely dissolved, auxiliary agent is put into reactor, it is 100~150rpm to control stir speed (S.S.), and 20min is extremely Auxiliary agent is fully dispersed, finally, and final products are obtained using 250 mesh filter-cloth filterings.
CN201510471596.8A 2015-08-04 2015-08-04 Possess offset printing transfer coatings of high anti-scratch performance and preparation method thereof Active CN105038488B (en)

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CN106928417A (en) * 2017-04-21 2017-07-07 苏州雄鹰笔墨科技有限公司 A kind of modified aldehyde ketone resin, preparation method and the application in writing ink
CN111978837B (en) * 2020-07-13 2022-01-07 惠州宝柏包装有限公司 Matte coating with soft and smooth touch feeling
CN112662227A (en) * 2020-12-11 2021-04-16 上海美美良虹印刷有限公司 Carbon-free environment-friendly offset printing black ink and preparation method thereof
CN114155780A (en) * 2021-12-22 2022-03-08 松裕印刷包装有限公司 Dustproof label

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CN101760091A (en) * 2009-12-14 2010-06-30 上海维凯化学品有限公司 Single-coating type matt transferring aluminum-plating paint and preparation method thereof
CN101747685A (en) * 2009-12-27 2010-06-23 浙江桐乡新东方油墨有限公司 Composite alcohol water plastic printing ink and preparation method thereof
JP6090657B2 (en) * 2013-02-22 2017-03-08 荒川化学工業株式会社 Paper-making surface sizing agent and paper coated with the sizing agent
CN103555105B (en) * 2013-10-24 2016-01-27 上海维凯光电新材料有限公司 The holographic transfer coatings composition and method of making the same of environment-friendly type anti-copying
CN104404819B (en) * 2014-09-28 2017-11-10 上海维凯光电新材料有限公司 A kind of multifunctional coating for wine box outer packing and preparation method thereof

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