CN111205721A - Multipurpose laser transfer coating and preparation method thereof - Google Patents
Multipurpose laser transfer coating and preparation method thereof Download PDFInfo
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- CN111205721A CN111205721A CN202010154225.8A CN202010154225A CN111205721A CN 111205721 A CN111205721 A CN 111205721A CN 202010154225 A CN202010154225 A CN 202010154225A CN 111205721 A CN111205721 A CN 111205721A
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- cellulose acetate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Abstract
The invention discloses a multipurpose laser transfer coating and a preparation method thereof, and aims to solve the problems of inconvenient processing and poor stability of the transfer coating. The key points of the technical scheme are as follows: a multipurpose laser transfer coating comprises the following raw materials in parts by weight: 5-8 parts of cellulose acetate, 8-10 parts of acrylic resin, 6-8 parts of propylene glycol methyl ether, 0.1-0.5 part of a flatting agent and 78-80 parts of a mixed solvent A60. The multipurpose laser transfer coating can be used for processing the coating conveniently and stably.
Description
Technical Field
The invention relates to the technical field of gravure printing, in particular to a multipurpose laser transfer coating and a preparation method thereof.
Background
The common transfer coating has the function of transferring and compounding the aluminum layer plated on the film in vacuum on the paper, and generally adopts secondary coating for balancing good stripping property and adhesion with the aluminum layer; the first layer is a release layer, the coloring layer is required to have very good film forming property, good flexibility and scratch resistance, low adhesion and good printability, and most of common materials are CAB (cellulose acetate butyrate), nitrocellulose, polyacrylate resin and the like; the second layer is a coloring layer, and is required to have good separation effect with the separation layer and good film forming performance, and the coloring layer and the separation layer are firmly combined to form a film which can resist the temperature of more than 140 ℃.
With the development of the packaging industry, the anti-counterfeiting and exquisite related requirements are increased, the application of laser holographic transfer paper is more and more extensive, holographic transfer is to carry out holographic die pressing on transfer coating, laser holographic patterns or character information are transferred to the transfer coating, and the die pressing temperature is required to be between 140 and 200 ℃; the plate can not be stuck during the mould pressing, and the common solvent can be resisted. The laser holographic transfer paper integrates anti-counterfeiting, environmental protection and decoration, and provides a material basis for further upgrading and leveling anti-counterfeiting packaging and packaging printing. It is used as an environment-friendly and fashionable anti-counterfeiting packaging material and is widely used for anti-counterfeiting packaging of various famous cigarettes, famous wines, middle-grade and high-grade medicines and foods.
At present, a plurality of coating manufacturers supply coatings at home and abroad, but because the types of coating and die pressing machines used by each laser film manufacturer are different, the difference of the environmental temperature and humidity can cause great instability of the coatings in the actual application process, such as high coating humidity and coating fogging; color aluminum delamination occurs if the resin absorbs moisture; if the coating is easy to be surface-dried, the coating is coated on a plate; if the molding interval is too narrow, the filling degree of the molded grating is unstable, the molded grating presents pressure impermeability or coating cracking and high-temperature fogging, and how to develop a coating suitable for different machines, different environments and large production control intervals according to the actual environmental current situation and production conditions is an important premise for ensuring the stability of products.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multipurpose laser transfer coating and a preparation method thereof, and the aim of conveniently producing the transfer coating is achieved by adjusting the proportion and simplifying the processing steps.
The technical purpose of the invention is realized by the following technical scheme: a multipurpose laser transfer coating comprises the following raw materials in parts by weight: 5-8 parts of cellulose acetate, 8-10 parts of acrylic resin, 6-8 parts of propylene glycol methyl ether, 0.1-0.5 part of a flatting agent and 78-80 parts of a mixed solvent A60.
Through adopting above-mentioned technical scheme, cellulose acetate has the selectivity height, the water permeability is big, characteristics simple to process, the adaptable interval of processing is great, the processing method is simple, can make radium-shine transfer coating's processing more convenient, be applicable to the processing stability under more circumstances, propylene glycol methyl ether solubility can be very excellent, have characteristics such as suitable volatilization rate and reactivity again, the processing application scope of coating has further been strengthened after mixing, make the processing of coating more convenient, acrylic resin has good weatherability and chemical resistance simultaneously, and is more stable, make the coating can both be stable under multiple condition process, it is more convenient to process.
The invention is further configured to: the mixed solvent A comprises the following components in parts by weight: 5-10 parts of n-propyl acetate, 30-40 parts of ethyl acetate and 25-30 parts of butanone.
By adopting the technical scheme, the mixed solvent A formed by mixing n-propyl acetate, ethyl acetate and butanone has excellent solubility and quick drying property, the solubility of the coating is enhanced, and the coating can be fused more fully.
The invention is further configured to: the acrylic resin is a homopolymer or copolymer which is polymerized by a conventional acrylate monomer or one or more functional monomers such as hydroxyethyl acrylate, hydroxypropyl acrylate, acrylic acid, methacrylic acid, acrylamide and glycidyl acrylate and has the weight average molecular weight of 3-20 ten thousand.
By adopting the technical scheme, the acrylic resin is not further crosslinked in the processing process, so that the acrylic resin has larger relative molecular weight, has the advantages of good light and color retention, water and chemical resistance, quick drying and convenient construction, further improves the stability of the coating in the processing process and makes the processing of the transfer coating more convenient.
The invention is further configured to: the cellulose acetate is selected from one or more of cellulose acetate, cellulose acetate and cellulose acetate butyrate.
By adopting the technical scheme, the cellulose acetate has good plasticity and has the advantages of no toxicity and no harm in the processing process.
The invention is further configured to: the leveling agent is polyether modified polysiloxane.
By adopting the technical scheme, the polyether modified polysiloxane has the excellent characteristics of high defoaming efficiency, stability and the like of the organic silicon defoaming agent, also has the characteristics of strong foam inhibition capability, no toxicity, good dispersibility and the like of the polyether defoaming agent, and can effectively prevent the coating from generating bubbles in the processing process.
The invention also provides a preparation method of the multipurpose laser transfer coating, which comprises the following steps:
the method comprises the following steps: putting 5-10 parts of n-propyl acetate, 30-40 parts of ethyl acetate and 25-30 parts of butanone into a reaction kettle in parts by weight, and fully mixing to obtain 60-80 parts of a mixed solvent A.
Step two: and (2) placing 5-8 parts by weight of cellulose acetate in 13-21 parts by weight of mixed solvent A, and fully stirring and dissolving to obtain a phase A mixture.
Step three: putting 8-10 parts by weight of acrylic resin into 24-30 parts by weight of mixed solvent A, and fully stirring and dissolving to obtain a B-phase mixture.
Step four: and uniformly mixing 18-29 parts of the phase A mixture and 32-40 parts of the phase B mixture in parts by weight to obtain a phase C mixture.
Step five: and uniformly mixing the rest 27-29 parts of mixed solvent A, 0.1-0.5 part of flatting agent and 50-69 parts of materials according to parts by weight to obtain the multipurpose laser transfer coating with the solid content of 19-21%.
The invention is further configured to: the stirring speed in the first step to the fifth step is 35-45 Hz.
By adopting the technical scheme, the materials of the coating can be more fully fused at the stirring speed, and bubbles and impurities are not easy to generate in the stirring process.
In conclusion, the invention has the following beneficial effects:
the method has the advantages that the cellulose acetate has the characteristics of high selectivity, large water permeability and simplicity in processing, the adaptable range of processing is large, the processing mode is simple, the laser transfer coating can be processed more conveniently, the method is suitable for processing stability under more conditions, the propylene glycol methyl ether dissolution performance is very excellent, and the method has the characteristics of proper volatilization rate, reaction activity and the like.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in detail with reference to examples.
A multipurpose laser transfer coating is characterized in that: the raw materials comprise the following components in parts by weight: 5-8 parts of cellulose acetate, 8-10 parts of acrylic resin, 6-8 parts of propylene glycol methyl ether, 0.1-0.5 part of a flatting agent and 60-80 parts of a mixed solvent A, wherein the mixed solvent A comprises the following components in parts by weight: 5-10 parts of n-propyl acetate, 30-40 parts of ethyl acetate and 25-30 parts of butanone. In this embodiment, the amount of the cellulose acetate is 6 parts, the amount of the acrylic resin is 9 parts, the amount of the propylene glycol methyl ether is 7 parts, the leveling agent is 0.3 part, and the amount of the mixed solvent a is 70 parts, so that the transfer coating can be mixed more fully in the mixture ratio, the cellulose acetate has the characteristics of high selectivity, large water permeability, simple processing, a large processing adaptable range, a simple processing mode, and high processing stability under more conditions, the propylene glycol methyl ether has excellent solubility, has the characteristics of proper volatilization rate and reaction activity, and the like, and further enhances the processing applicable range of the coating after mixing, so that the coating can be processed more conveniently, and meanwhile, the acrylic resin is prepared from conventional acrylate monomers or functional monomers such as hydroxyethyl acrylate, hydroxypropyl acrylate, acrylic acid, methyl ether, and the like, The coating is a homopolymer or copolymer which is polymerized from one or more of methacrylic acid, acrylamide and glycidyl acrylate and has the weight average molecular weight of 3-20 ten thousand, and the coating has good weather resistance and chemical resistance and is more stable in the processing process. Meanwhile, the leveling agent adopts polyether modified polysiloxane, and the polyether modified polysiloxane has the excellent characteristics of high defoaming efficiency, stability and the like of the organic silicon defoaming agent, also has the characteristics of strong foam inhibition capability, no toxicity, good dispersibility and the like of the polyether defoaming agent, and can effectively prevent the coating from generating bubbles in the processing process.
The cellulose acetate is selected from one or more of cellulose acetate, cellulose acetate, and cellulose acetate butyrate. In this embodiment, the cellulose acetate is cellulose acetate, which has the advantages of low thermal conductivity, flexible production, various visual effects, excellent fluidity, good surface gloss, good electrical insulation, static electricity prevention, self-brightness, high transparency, and strong pressure resistance.
The invention also provides a preparation method of the multipurpose laser transfer coating, which comprises the following steps: the method comprises the following steps: 8 parts of n-propyl acetate, 35 parts of ethyl acetate and 27 parts of butanone are put into a reaction kettle according to the parts by weight, stirred at a uniform speed of 150rpm and stirred until the components are fully mixed to prepare 70 parts of a mixed solvent A, wherein the mixed solvent A formed by mixing the n-propyl acetate, the ethyl acetate and the butanone has excellent solubility and quick drying property, the solubility of the coating is enhanced, and the coating can be fully fused.
Step two: 6 parts by weight of cellulose acetate is placed into 17 parts by weight of the mixed solvent A, stirred at a uniform speed of 150rpm and fully stirred to be dissolved to obtain a phase A mixture.
Step three: 9 parts of acrylic resin is placed into 25 parts of the mixed solvent A according to the parts by weight, stirred at a uniform speed of 150rpm and fully stirred to be dissolved to obtain a B-phase mixture.
Step four: and uniformly stirring 25 parts of the phase A mixture and 37 parts of the phase B mixture at a stirring speed of 150rpm according to parts by weight, and uniformly mixing to obtain a phase C mixture.
Step five: and uniformly stirring the rest of the mixed solvent A, 0.3 part of the leveling agent, 7 parts of propylene glycol methyl ether and the mixture of the phase C at a stirring speed of 150rpm, and uniformly stirring and mixing to obtain the multipurpose laser transfer coating with the solid content of 19-21 percent. Has good flexibility and scratch resistance, and good printability.
In the process of processing the coating, the coating has no excessive requirements on temperature and environment, and the materials can be fully mixed by stirring, so that the coating is more convenient to process and has good stability.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A multipurpose laser transfer coating is characterized in that: the raw materials comprise the following components in parts by weight: 5-8 parts of cellulose acetate, 8-10 parts of acrylic resin, 6-8 parts of propylene glycol methyl ether, 0.1-0.5 part of a flatting agent and 78-80 parts of a mixed solvent A60.
2. The multipurpose laser transfer coating of claim 1, wherein: the mixed solvent A comprises the following components in parts by weight: 5-10 parts of n-propyl acetate, 30-40 parts of ethyl acetate and 25-30 parts of butanone.
3. The multipurpose laser transfer coating of claim 1, wherein: the acrylic resin is a homopolymer or copolymer which is polymerized by a conventional acrylate monomer or one or more functional monomers such as hydroxyethyl acrylate, hydroxypropyl acrylate, acrylic acid, methacrylic acid, acrylamide and glycidyl acrylate and has the weight average molecular weight of 3-20 ten thousand.
4. The multipurpose laser transfer coating of claim 1, wherein: the cellulose acetate is selected from one or more of cellulose acetate, cellulose acetate and cellulose acetate butyrate.
5. The multipurpose laser transfer coating of claim 1, wherein: the leveling agent is polyether modified polysiloxane.
6. The method of any one of claims 1-5 for preparing a multipurpose laser transfer coating, wherein: the method comprises the following steps:
the method comprises the following steps: putting 5-10 parts of n-propyl acetate, 30-40 parts of ethyl acetate and 25-30 parts of butanone into a reaction kettle in parts by weight, and fully mixing to obtain 60-80 parts of a mixed solvent A.
Step two: and (2) placing 5-8 parts by weight of cellulose acetate in 13-21 parts by weight of mixed solvent A, and fully stirring and dissolving to obtain a phase A mixture.
Step three: putting 8-10 parts by weight of acrylic resin into 24-30 parts by weight of mixed solvent A, and fully stirring and dissolving to obtain a B-phase mixture.
Step four: and uniformly mixing 18-29 parts of the phase A mixture and 32-40 parts of the phase B mixture in parts by weight to obtain a phase C mixture.
Step five: uniformly mixing the rest 27-29 parts of mixed solvent A, 0.1-0.5 part of flatting agent, 6-8 parts of propylene glycol methyl ether and the mixture of the phase C according to the parts by weight to obtain the multipurpose laser transfer coating with the solid content of 19-21%.
7. The method for preparing a multipurpose laser transfer coating according to claim 6, wherein the method comprises the following steps: the stirring rate in the first step to the fifth step is 150 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010154225.8A CN111205721A (en) | 2020-03-07 | 2020-03-07 | Multipurpose laser transfer coating and preparation method thereof |
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| CN202010154225.8A CN111205721A (en) | 2020-03-07 | 2020-03-07 | Multipurpose laser transfer coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116001468A (en) * | 2022-12-03 | 2023-04-25 | 佛山市金镭科技有限公司 | Production process of wear-resistant laser electrochemical aluminum |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098646A1 (en) * | 2001-11-28 | 2003-05-29 | Samsung Sdi, Co., Ltd. | Organic EL display device having organic soluble derivative layer |
| CN105086727A (en) * | 2015-07-31 | 2015-11-25 | 上海维凯光电新材料有限公司 | Laser aluminizing transferring coating high in aluminum-layer adhesion and stripping performance |
-
2020
- 2020-03-07 CN CN202010154225.8A patent/CN111205721A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098646A1 (en) * | 2001-11-28 | 2003-05-29 | Samsung Sdi, Co., Ltd. | Organic EL display device having organic soluble derivative layer |
| CN105086727A (en) * | 2015-07-31 | 2015-11-25 | 上海维凯光电新材料有限公司 | Laser aluminizing transferring coating high in aluminum-layer adhesion and stripping performance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116001468A (en) * | 2022-12-03 | 2023-04-25 | 佛山市金镭科技有限公司 | Production process of wear-resistant laser electrochemical aluminum |
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Application publication date: 20200529 |