CN105038488A - Offset printing transfer coating high in rubbing resistance and preparation method thereof - Google Patents
Offset printing transfer coating high in rubbing resistance and preparation method thereof Download PDFInfo
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- CN105038488A CN105038488A CN201510471596.8A CN201510471596A CN105038488A CN 105038488 A CN105038488 A CN 105038488A CN 201510471596 A CN201510471596 A CN 201510471596A CN 105038488 A CN105038488 A CN 105038488A
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Abstract
The invention provides offset printing transfer coating high in rubbing resistance. The coating is composed of, by weight, 10-15% of polyurethane modified polyacrylate resin, 5-12% of modified aldehyde ketone resin, 5-8% of cellulose ester resin, 0.2-0.5% of silicon-containing smoothening auxiliaries, 0.8-1.5% of wax powder additives and 63-79% of solvents. Compared with the prior art, the coating has the advantages that firstly, by optimizing a resin system, the polyurethane modified polyacrylate resin and the modified aldehyde ketone resin are adopted, so that the coating has higher hardness and elastic plasticity; the smoothness of the surface of the coating is improved through the silicon-containing smoothening agents; by adding wax powder, the scratch resistance and abrasion resistance of the coating are further improved. Production and manufacturing are easy, and cost is low.
Description
Technical field
The present invention relates to a kind of offset printing transfer coatings possessing high scuff resistance and preparation method thereof, belong to technical field of coatings.
Background technology
Because transfer aluminum plated paper has obvious cost, environment-friendly advantage relative to PET coating card or aluminium foil composite card paper, so, at present, domestic packaging industry is generally upgraded to transfer aluminum plated technique, utilize the not only economic environmental protection of the wrapping paper of this explained hereafter, and there is nonpoisonous and tasteless feature.Prevailing along with shifting process, the requirement of follow-up typography to transfer coatings is also more and more higher.Particularly in offset printing technique, due to special transfering process, paper coating surface especially easily abrades, and causes product rejection.And the thermoset transfering system of scuff resistance excellence, its offset printing performance cannot reach print request.The common practice solving offset printing scuff problem in packaging industry is last layer water varnish again on transfer coated, ensures the scuff resistance of coating.Offset printing scuff problem can be solved although it is so, but due to many varnished operations together, production cost can be made obviously to raise.At present, a kind of offset printing transfer coatings possessing high scuff resistance is not also had on the market.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of offset printing transfer coatings possessing high scuff resistance and preparation method thereof.
The present invention is achieved by the following technical solutions:
Possess an offset printing transfer coatings for high scuff resistance, it is made up of the following component of percentage ratio by weight:
The use of polyurethane-modified polyacrylic resin can be avoided coating not possess elastoplasticity, can make the defect of the scuff resistance difference of formula.If consumption is higher than 15% this scope, coating can be made partially soft, have sticky leeward danger; If lower than 10%, plastoelastic effect will do not had.
The use of modification aldehyde ketone resin can avoid coating hardness not high, the defect be easily scratched.If consumption is higher than 12%, coating can be made partially crisp, cause in coating wrapup procedure, coating shedding; If lower than 5%, do not have the effect improving coating hardness.
The use of cellulose ester resin can avoid coating not possess the defect of offset printing performance.If consumption is higher than 8%, the scuff resistance of coating can be affected; If lower than 5%, printing performance cannot be ensured.
Siliceous smooth auxiliary agent can avoid coating not possess smoothness, the easy abrasive defect in surface.If consumption is higher than 0.5%, coated film is too smooth, can produce rolling slippage problems; If lower than 0.2%, then do not have smooth effect.
Wax flour additive agent can avoid the reduction of coating abrasion performance and resistance to marring.If consumption is higher than 1.5%, the transparency of coating will be affected; If lower than 0.8%, then do not have the effect of wear resistance and resistance to marring.
Preferably, described polyurethane-modified polyacrylic resin refers to the multipolymer of methyl acrylate, ethyl propenoate, butyl acrylate, methyl methacrylate, butyl methacrylate and urethane monomer or the arbitrary combination of their multipolymers, urethane monomer composition is not less than 10%, and described homopolymer or multipolymer 50<Tg<90 DEG C, molecular weight is 5 ~ 80,000.Modified vinylformic acid has better elastoplasticity, and coating is more not easily scratched, and modified vinylformic acid can be the sticking power that coating provides more excellent.
Preferably, referring to of described modification aldehyde ketone resin uses ethylidene azanol, amido urea, maleic anhydride to cyclohexanone-formaldehyde resin modification, makes it have higher Tg, its Tg>130 DEG C.Modified high Tg aldehyde ketone resin, has higher hardness, coating can be made harder, more resistance to wiping.
Preferably, described cellulose ester resin comprises one or more in cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, and the molecular weight of cellulose ester is 7000 ~ 20000.
Preferably, described siliceous smooth auxiliary agent includes organic siloxane, polyether-modified polysiloxane, polydimethylsiloxane etc., but is not limited to above-mentioned several.Adding of siliceous smooth auxiliary agent, the smoothness of coatingsurface can be significantly improved, reduce the frictional coefficient of coatingsurface, reach the effect of scuff.
Preferably, described solvent is at least one in ethyl acetate, n-propyl acetate, ethanol, propylene glycol monomethyl ether, Virahol, propylene-glycol ethyl ether.
A preparation method for the offset printing transfer coatings of high scuff resistance as described in the present invention, it comprises the following steps:
Solvent is placed in reactor, opens and stir and heating unit, solvent is even, and temperature keeps 50 DEG C;
Dropped into by resin Composition in reactor, control stir speed (S.S.) is 150 ~ 250rpm, stirs 1 ~ 5h, makes resin Composition dissolve fully;
After resin Composition dissolves completely, dropped into by auxiliary agent in reactor, controlling stir speed (S.S.) is that 100 ~ 150rpm, 20min fully disperse to auxiliary agent, finally, adopts 250 order filter-cloth filterings to obtain the finished product.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention is by preferred resin system, adopts polyurethane modified acrylic resin to increase the elastoplasticity of coating, adopts modification aldehyde ketone resin, make coating have higher hardness; Improve coatingsurface smoothness by siliceous slipping agent, hard object is streaked, and not easily abrades; By adding wax powder, improve the scratch resistance wear resisting property of coating further.The effect of synthesis resin and auxiliary agent, makes transfer coatedly have certain elastoplasticity and hardness, and surface is smooth, is not easily scratched by hard object.
2, the common transfer coatings that, scuff resistance good compared to offset printing performance is poor, due to preferred resin system and auxiliary agent, makes it have good elastoplasticity, hardness and surperficial smoothness, has excellent scuff resistance, directly printing of can not varnishing;
3, compare scuff resistance good, cannot the thermoset transfer coatings of direct offset printing, the present invention under the prerequisite improving scuff resistance, simultaneously with good offset printing, can direct offset printing, be not scratched.
4, compared to the guarantee scuff technique of varnishing generally used at present, use this coating not varnish, save production cost;
5, manufacture is simple, and cost is low.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Polyurethane-modified polyacrylic resin described in the present invention refers to the multipolymer of methyl acrylate, ethyl propenoate, butyl acrylate, methyl methacrylate, butyl methacrylate and urethane monomer or the arbitrary combination of their multipolymers, urethane monomer composition is not less than 10%, and described homopolymer or multipolymer 50<Tg<90 DEG C, molecular weight is 5 ~ 80,000.Modified vinylformic acid has better elastoplasticity, and coating is more not easily scratched, and modified vinylformic acid can be the sticking power that coating provides more excellent.Referring to of modification aldehyde ketone resin uses ethylidene azanol, amido urea, maleic anhydride to cyclohexanone-formaldehyde resin modification, makes it have higher Tg, its Tg>130 DEG C.Modified high Tg aldehyde ketone resin, has higher hardness, coating can be made harder, more resistance to wiping.
Cellulose ester resin described in the present invention comprises one or more in cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, and the molecular weight of cellulose ester is 7000 ~ 20000.
embodiment 1
A kind of component possessing the offset printing transfer coatings of high scuff resistance that the present embodiment relates to is as shown in the table:
embodiment 2
A kind of component possessing the offset printing transfer coatings of high scuff resistance that the present embodiment relates to is as shown in the table:
embodiment 3
A kind of component possessing the offset printing transfer coatings of high scuff resistance that the present embodiment relates to is as shown in the table:
comparative example
A kind of component possessing the offset printing transfer coatings of high scuff resistance that this comparative example relates to is as shown in the table:
Contrast effect:
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (8)
1. possess an offset printing transfer coatings for high scuff resistance, it is characterized in that, be made up of the following component of percentage ratio by weight:
2. possesses the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, described polyurethane-modified polyacrylic resin refers to the multipolymer of methyl acrylate, ethyl propenoate, butyl acrylate, methyl methacrylate, butyl methacrylate and urethane monomer or the arbitrary combination of their multipolymers, urethane monomer composition is not less than 10%, and described homopolymer or multipolymer 50<Tg<90 DEG C, molecular weight is 5 ~ 80,000.
3. possesses the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, described modification aldehyde ketone resin refers to uses ethylidene azanol, amido urea or maleic anhydride to cyclohexanone-formaldehyde resin modification, makes it have higher Tg, its Tg>130 DEG C.
4. possesses the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, described cellulose ester resin comprises one or more in cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, and the molecular weight of cellulose ester is 7000 ~ 20000.
5. possess the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, described siliceous smooth auxiliary agent includes organic siloxane, polyether-modified polysiloxane, polydimethylsiloxane etc., but is not limited to above-mentioned several.
6. possess the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, described content of wax flour additive agent comprises polyethylene wax micro mist, polyamide wax, ptfe micropowder, Poly Propylene Wax.
7. possess the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, described solvent is at least one in ethyl acetate, n-propyl acetate, ethanol, propylene glycol monomethyl ether, Virahol, propylene-glycol ethyl ether.
8. possess a preparation method for the offset printing transfer coatings of high scuff resistance as claimed in claim 1, it is characterized in that, the method comprises the following steps:
Solvent is placed in reactor, opens and stir and heating unit, solvent is even, and temperature keeps 50 DEG C;
Dropped into by resin Composition in reactor, control stir speed (S.S.) is 150 ~ 250rpm, stirs 1 ~ 5h, makes resin Composition dissolve fully;
After resin Composition dissolves completely, dropped into by auxiliary agent in reactor, controlling stir speed (S.S.) is that 100 ~ 150rpm, 20min fully disperse to auxiliary agent, finally, adopts 250 order filter-cloth filterings to obtain the finished product.
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Cited By (4)
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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 |
CN111978837A (en) * | 2020-07-13 | 2020-11-24 | 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 |
CN103555105A (en) * | 2013-10-24 | 2014-02-05 | 上海维凯化学品有限公司 | Environment-friendly anti-copy holographic transfer coating composition and preparation method thereof |
JP2014163002A (en) * | 2013-02-22 | 2014-09-08 | Arakawa Chem Ind Co Ltd | Surface sizing agent for paper making and paper coated with the sizing agent |
CN104404819A (en) * | 2014-09-28 | 2015-03-11 | 上海维凯光电新材料有限公司 | Multifunctional paint used for outer package of wine box and preparation method thereof |
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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 |
JP2014163002A (en) * | 2013-02-22 | 2014-09-08 | Arakawa Chem Ind Co Ltd | Surface sizing agent for paper making and paper coated with the sizing agent |
CN103555105A (en) * | 2013-10-24 | 2014-02-05 | 上海维凯化学品有限公司 | Environment-friendly anti-copy holographic transfer coating composition and preparation method thereof |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
CN111978837A (en) * | 2020-07-13 | 2020-11-24 | 惠州宝柏包装有限公司 | Matte coating with soft and smooth touch feeling |
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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