CN104797426B - Transfer film - Google Patents

Transfer film Download PDF

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Publication number
CN104797426B
CN104797426B CN201380058812.5A CN201380058812A CN104797426B CN 104797426 B CN104797426 B CN 104797426B CN 201380058812 A CN201380058812 A CN 201380058812A CN 104797426 B CN104797426 B CN 104797426B
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CN
China
Prior art keywords
release layer
transfer film
layer
resin
film
Prior art date
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Expired - Fee Related
Application number
CN201380058812.5A
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Chinese (zh)
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CN104797426A (en
Inventor
渡边学
松田启佑
樋爪友美
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Toppan Inc
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Toppan Printing Co Ltd
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Publication of CN104797426A publication Critical patent/CN104797426A/en
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Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/40Layered products comprising a layer of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/28Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/283Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysiloxanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17Dry transfer
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/62Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6216Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
    • C08G18/622Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
    • C08G18/6225Polymers of esters of acrylic or methacrylic acid
    • C08G18/6229Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/62Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6216Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
    • C08G18/625Polymers of alpha-beta ethylenically unsaturated carboxylic acids; hydrolyzed polymers of esters of these acids
    • C08G18/6254Polymers of alpha-beta ethylenically unsaturated carboxylic acids and of esters of these acids containing hydroxy groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/748Releasability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment

Abstract

The purpose of the present invention is to provide a transfer film in which the environmental load (human load) is smaller, low-temperature processing is possible, and an excellent hard coating function is imparted on the transfer-receiving body (mainly a plastic molded item). This transfer film is obtained by sequentially layering at least a mold separation layer (2), a hard coating layer (3), and an adhesive layer (6) on one surface of a substrate film (1). The separation layer (2) is formed of an acrylic urethane resin having a long-chain alkyl group having 10-30 carbon atoms.

Description

Transfer film
Technical field
The present invention relates to have the transfer film of hard conating.
Background technology
All the time, in mainly banding in method to plastic shaping thing, the generation of method is directly banded as covering with paint etc. For method, using the thermal transfer for having used transfer film.The great majority of this transfer film are required to protect with the surface of plastic shaping thing Hard painting function for the purpose of shield.For example, transfer film as described above is in general using the layer successively on a face of base material film Folded release layer, hard conating, the composition for banding layer, adhesive linkage.
Here, when requiring to carry out thermal transfer on to transfer printing bodies such as plastic shaping things to release layer, imparting is from hard conating The function of good fissility.In addition, satisfactory design is required to banding layer, the jail to transfer printing body is required to adhesive linkage Solid cementability.
As using above-mentioned transfer film thermal transfer to the method on transfer printing body, for example, have and simultaneously transfer with injection mo(u)lding The method of hard conating/band layer/adhesive linkage;Hard conating/band layer/adhesive linkage is transferred to using the hot pressing of hot roll and is transferred Method on body;Method being transferred to using vacuum or compressed air or heater on transfer printing body etc..
The hard transfer printing body for applying function is required to transfer film as this, for example, mostly is with polycarbonate resin as representative Soft plastic shaping thing.In general, as the material that above-mentioned presentation applies the hard conating of function firmly is constituted, thermoplastic third can be enumerated Olefin(e) acid resin, 2 curing components acrylic resins, ultraviolet curing resin etc. particularly to use marresistance, chemically-resistant more The excellent ultraviolet curing resin such as agents.
As described above, most employing of transfer film on a face of base material film stacks gradually release layer, hard conating, bands Layer, the composition of adhesive linkage.It is for the release layer for being formed as ground floor on base material film, above-mentioned from hard conating except requiring Good fissility outside, also require that the coating fluid when hard conating is formed will not occur the film of coating fluid (ink) when covering with paint, lacquer, colour wash, etc. Depression (recoatability), the thermostability with heat during tolerable transfer and base material film or substrate adaptation it is strong, and can chase after With the shape (extensibility) of transferred object.
As the material for constituting release layer, there are organosilicon or fluororesin of the releasing agent for being used for adhesive tape etc..But, these Material is with the problem for being easy to film depression when the hard conating formation coating fluid being formed on release layer is covered with paint, lacquer, colour wash, etc..
As the solution countermeasure of the problems referred to above, melmac, particularly acrylic acid trimerization more used in release layer Melamine resin (referring for example to patent documentation 1, patent documentation 2).
But, above-mentioned melmac is remained in a large number with harmful formaldehyde, the formaldehyde are produced in manufacturing process Problem in melamine cured thing and coating fluid drying device.In addition, according to the report of international cancer research institute, the first Aldehyde is set forth in the first echelon that can be confirmed to the carcinogenecity of the mankind, and then which is to cause the material of disease room syndrome to be also to ask Topic.
On the other hand, when raw material, part or the equipment of product is bought, formulating the little material of Environment load is carried out The enterprise of the Green Purchasing standard of buying increases.The situation without formaldehyde is included in the Green Purchasing standard a lot, therefore located Melamine material of the reason containing formaldehyde becomes difficult.
Further, since melmac is heat reactive resin, therefore the so-called baking in the manufacturing process of transfer film Operation becomes necessary, for example, need the heating of 30 seconds~1 minute or so is carried out in 180~200 DEG C of baking oven.Thus, base material Film needs to can tolerate the heating-up temperature, and thin base material or heat labile base material are unsuitable for base material film.
On the other hand, as the release layer that can be formed at a temperature of less than melmac, it is also proposed that use The method of the coating fluid with Tissuemat E as main constituent.Specifically carry out heating after the coating fluid is coated with, make the painting Cloth liquid levelling is come the method that forms release layer.But, also there is the method release layer to be broken because of the temperature applied during transfer Bad, result becomes the problem for transferring bad (bad order).
Prior art literature
Patent documentation
Patent documentation 1:No. 2538479 publications of Japanese Patent No.
Patent documentation 2:Japanese Unexamined Patent Publication 2009-137219 publications
The content of the invention
Invention technical problem to be solved
The present invention wants to solve the above problems, its object is to provide carrying capacity of environment (load of people) less, can low temperature add Work, the transfer film that excellent hard painting function is given to transfer printing body (mainly plastic shaping thing).
Method for solving technical problem
A mode for solving the present invention of above-mentioned problem is a kind of transfer film, it is characterised in which is in base material The transfer film of release layer, hard conating, adhesive linkage is stacked gradually on one face of film at least, wherein, it is 10 with having carbon number Above and the acrylated polyurethane resin of less than 30 chain alkyl forms the release layer.
In addition, in above-mentioned transfer film, by least acrylic polyol resin, with hydroxyl and carbon number can be more than 10 and The cross-linking reaction of the acrylic resin and isocyanate compound of less than 30 chain alkyl generates the acroleic acid polyurethane Resin.
In addition, in above-mentioned transfer film, can be in the release layer containing the cellulose derivative with hydroxyl.
In addition, in above-mentioned transfer film, can be in the release layer containing the acrylic acid organic siliconresin with hydroxyl.
In addition, in above-mentioned transfer film, anchoring layer can be arranged between the base material film and the release layer.
In addition, in above-mentioned transfer film, the face by the release layer side of the anchoring layer can be made to be shaped as concave-convex Shape.
Invention effect
The transfer film of a mode of the invention, release layer is by with the long alkane that carbon number is more than 10 and less than 30 The acrylated polyurethane resin of base is formed.Therefore, excellent release property is presented during thermal transfer, and will not causes and coat release layer On hard conating coating fluid film depressed phenomenon, uniform hard conating can be formed.
In addition, in above-mentioned transfer film, used in release layer by least acrylic polyol resin, with hydroxyl and carbon Number by more than 10 and less than 30 the acrylic resin of chain alkyl and the cross-linking reaction of isocyanate compound generate During acrylated polyurethane resin, in a low temperature of room temperature~50 DEG C or so, curing reaction terminates.Therefore, it can make to base material The few release layer of the thermic load of film.
In addition, in above-mentioned transfer film, when release layer contains the cellulose derivative with hydroxyl, even if implementing and injection When in-mold transfer printing that molding is simultaneously transferred, the in-mold transfer printing of the thermostability required under high temperature, due to existing with hydroxyl The cellulose derivative of base, thermostability can also be improved.Therefore, it can suppress hot gauffer or caking.
In addition, in above-mentioned transfer film, when release layer contains the acrylic acid organic siliconresin with hydroxyl, can present The release property of the high speed of correspondence thermal transfer can also be enough to.
In addition, in above-mentioned transfer film, when anchoring layer is provided between base material film and release layer, base material can be improved The adaptation of film and release layer, and by making the surface of release layer smoothened, gloss can be given to the surface of transfer printing body.
In addition, in above-mentioned transfer film, when the surface for making anchoring layer is concaveconvex shape, can be to the surface of transfer printing body Give design.
As described above, according to the transfer film of a mode of the invention, can provide carrying capacity of environment (load of people) less, can Machining at low temperature, the transfer film that excellent hard painting function and design are given to transfer printing body (mainly plastic shaping thing).
Description of the drawings
Fig. 1 is the section skeleton diagram of an embodiment of the transfer film for representing the present invention.
Fig. 2 is that the section skeleton diagram after article shaped is needed on using the transfer film of Fig. 1.
Fig. 3 is the section skeleton diagram of an embodiment (matt formula) of the transfer film for representing the present invention.
Fig. 4 is that the section skeleton diagram after article shaped is needed on using the transfer film of Fig. 3.
Specific embodiment
Following one side is referring to the drawings while explain embodiments of the present invention.In addition, play in each figure it is identical or The element of similar functions carries identical reference marks, and the repetitive description thereof will be omitted.
Fig. 1 is the section skeleton diagram of an embodiment of the transfer film for representing the present invention.The transfer film of present embodiment Be possess successively base material film 1, release layer 2, hard conating 3, priming coat 4, band (print) layer 5 (being only designated as " banding layer 5 " below), The duplexer of adhesive linkage 6.Here, generally band layer 5 and mostly be multiple layers, can also apply embossing processing or add the tool such as pearlescent pigment Have optical effect bands material.
In addition, though be not expressly recited in accompanying drawing, but can be in the contrary with the face for being formed with release layer 2 of base material film 1 Antistatic backing is formed on the face of side.By forming the antistatic backing, can reduce sometimes foreign body be attached on transfer film, yield become Good (in other words, the incidence rate of substandard product is reduced).As the antistatic agent that can be used in the antistatic backing, for example may be used Enumerate the electroconductive polymers such as polythiophene or PEDOT or the polymer containing quaternary ammonium salt, the coating agent of sol gel reaction thing.
Fig. 2 represents the section skeleton diagram after being transferred in the article shaped 7 as transfer printing body using the transfer film of Fig. 1.
Fig. 3 is the section skeleton diagram of an embodiment (matt formula) of the transfer film for representing the present invention.Matt formula Transfer film be possess successively base material film 1, grappling and design level 9 (being only designated as " anchoring layer 9 " below), release layer 2, hard conating 3, Priming coat 4, band layer 5, the duplexer of adhesive linkage 6.Here, anchoring layer 9 is to be formed with fine concavo-convex, presentation in its surface The layer of the outward appearance of matt formula.In addition, go out although not shown, but when it is hair stricture of vagina (surface wire drawing) formula to make transfer thing, by making The anchoring layer 9 is hair stricture of vagina formula, can make hair stricture of vagina transfer film.
Fig. 4 to be represented and be transferred to the section skeleton diagram after the article shaped 7 as transfer printing body using the transfer film of Fig. 3.
Hereinafter, the above layers that the transfer film of present embodiment possesses are illustrated.
(base material film 1)
As base material film 1, for example can using polyethylene terephthalate film, poly (ethylene naphthalate) film, Polypropylene screen, polyethylene film, three cellulose acetate membrane, polycarbonate membrane, nylon membrane, cellophane membrane, acrylic film, vinyl chloride film Deng base material.The thickness of the film that can be used is preferably in more than 25 μm and less than 250 μm of scope, is particularly preferably more than 38 μm And in less than 150 μm of scope.
(release layer 2)
Release layer 2 is formed by the acrylated polyurethane resin with the chain alkyl that carbon number is more than 10 and less than 30 Layer.For being formed in the coating fluid compositionss of the release layer 2 containing with the chain alkyl that carbon number is more than 10 and less than 30 Acrylated polyurethane resin.By using the acrylated polyurethane resin with the chain alkyl in this carbon number range, take off Mold layer 2 is presented excellent release property in thermal transfer, and will not cause the painting of the hard conating coating fluid being coated on release layer 2 Film depressed phenomenon, can form uniform hard conating 3.When carbon number is less than 10, release property during thermal transfer is insufficient, is being turned There is transfer on the surface of print body uneven, become quality defect.In addition, when carbon number is more than 30, in hard conating coating fluid There is film depression during coating, it is impossible to form uniform hard conating 3.
As the forming method of the release layer 2 being made up of the above-mentioned acrylated polyurethane resin with chain alkyl, for example Have by containing acrylic polyol resin and the alkyl isocyanate with chain alkyl coating fluid compositionss or will contain Coating fluid compositionss with chain alkyl and the acrylic resin and isocyanate compound of hydroxyl are coated on the one of base material film 1 On individual face, afterwards make its be crosslinked method.
In addition, release layer 2 as it was previously stated, sometimes according to transfer printing body will to the adaptation of base material film 1, release property, prolong The performances such as stretching property, solvent resistance, thermostability are finely adjusted.For example, by containing above-mentioned with chain alkyl and hydroxyl third Coordinate acrylic polyol resin or acroleic acid polyurethane tree in the coating fluid compositionss of olefin(e) acid resin and isocyanate compound Fat crosslinks reaction, shape by the compositionss contained by the coating fluid that makes this adjusted seeking the adjustment of coating fluid compositionss Into release layer 2.Wherein, the use level with chain alkyl and the acrylic resin of hydroxyl is excellent relative to acrylic polyol resin Elect as in more than 2 weight % and the scope below 30 weight %, but be not particularly limited.
Above-mentioned acrylic polyol resin is the acrylic resin with multiple hydroxyls, and the monomer component of its composition is tool There is the (co) polymer of (methyl) acrylic monomerss of hydroxyl, but can also make not (methyl) acrylic acid acid esters list with hydroxyl The copolymerization such as body, styrene monomer, Vinyl Acetate Monomer.As (methyl) acrylic monomerss with hydroxyl, for example, can enumerate (methyl) acrylic acid 2- hydroxy methacrylates, (methyl) acrylic acid 3- hydroxy propyl esters, (methyl) acrylic acid 4- hydroxybutyls, (methyl) third Own ester of olefin(e) acid 6- hydroxyls etc..
In addition, as the acrylic monomerss with chain alkyl, such as (methyl) decyl acrylate, (methyl) third can be enumerated Olefin(e) acid hendecane base ester, (methyl) dodecylacrylate, (methyl) tridecyl acrylate, (methyl) acrylic acid 14 Arrcostab, (methyl) acrylic acid pentadecane base ester, (methyl) aliphatic acrylate, (methyl) acrylic acid heptadecane base ester, (methyl) octadecyl acrylate, (methyl) acrylic acid nonadecane base ester, (methyl) acrylic acid eicosane base ester, (methyl) third Olefin(e) acid heneicosane base ester, (methyl) acrylic acid melissane base ester etc..Acrylic resin with chain alkyl and hydroxyl can be with By the copolymerization of the acrylic monomerss with chain alkyl and (methyl) acrylic monomerss with hydroxyl obtaining.
In addition, isocyanate compound refer to toluene di-isocyanate(TDI) (TDI), methyl diphenylene diisocyanate (MDI), Xylylene diisocyanate (XDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) and it Prepolymer etc..
The result furtherd investigate of invention people finds, by least containing acrylic polyol resin, with hydroxyl and Carbon number is consolidating for the coating fluid compositionss of the acrylic resin and isocyanate compound of more than 10 and less than 30 chain alkyl Compound, with carbon number by the release layer 2 that the acrylated polyurethane resin of more than 10 and less than 30 chain alkyl is formed it is Preferably.The coating fluid compositionss simultaneously need not carry out the roasting procedure under high temperature to solidify as melmac (180~200 DEG C), but by carrying out aging terminating curing reaction at a temperature of room temperature~50 DEG C or so.Thus, according to Present embodiment, can make release layer 2 by low-temperature setting.Therefore, because under the condition of cure of the tripolycyanamide demoulding A problem that gauffer or thermal contraction, crystallization can occur thus cannot use in the past, tensionless winkler foundation PET film, vinyl chloride film Or the thermo-labile but percentage elongation such as PET-G films it is high, the base material film that article shaped tracing ability is excellent etc. can also be made in the present embodiment With.
Transfer film is according to purposes sometimes in transfer by applying heat to heavens.For example, simultaneously carrying out with injection mo(u)lding 160 DEG C or so of heat will be applied in the in-mold transfer printing of transfer.Now, by the release layer 2 in the transfer film used by in-mold transfer printing It is middle to coordinate the cellulose derivative with hydroxyl, thermostability can be improved.Preferably use in present embodiment with hydroxyl Cellulose derivative is celluloid, acetylbutyrylcellulose, cellulose acetate propionate.Here, as cellulose derivative Use level, the scope relative to the acrylic polyol resin of host, more than preferably 20 weight % and below 100 weight % It is interior.
In addition, when high speed when peeling off is corresponded to or being laminated the high hard conating 3 of the adaptation containing carbamate When, sometimes require that the stripping of release layer 2 is slighter.Now, by coordinating the acrylic acid organosilicon with hydroxyl in release layer 2 Resin, can make stripping become slight in the case where recoatability is not lost.Acrylic acid organic siliconresin now is suitably matched somebody with somebody Resultant is in more than 0.5 weight % and scope below 15 weight % relative to the acrylic polyol resin of host.The demoulding The thickness of layer 2 is not particularly limited, it is still further preferred that in more than 0.1 μm and less than 5 μm of scope.
Additionally, can also contain the acrylic acid organic siliconresin with hydroxyl and the cellulose with hydroxyl in the release layer 2 Both derivants, also can only contain either of which.
In addition, by containing resin fillers or inorganic filler in the release layer 2, its anti-dazzle can be made or made Surface is tarnish.Additionally, it is preferred that anchoring layer 9 is formed between release layer 2 and base material film 1 as shown in Figure 3.
(anchoring layer 9)
Anchoring layer 9 is not merely to improving the adaptation of release layer 2 and base material film 1 and arranging.For example, by arranging Smooth anchoring layer 9, can relax the concavo-convex of base material film 1, and then the surface of the release layer 2 being formed thereon can become smooth Face, thus high glaze can be given to end article surface (surface of hard conating 3).
On the other hand, as shown in figure 3, by the recessed of matt formula is formed on the face by 2 side of release layer of anchoring layer 9 Convex, the surface of release layer 2 is changed into matt formula, is matt formula such that it is able to make end article surface (surface of hard conating 3). In addition, go out although not shown, but concavo-convex, the release layer 2 by forming hair stricture of vagina formula on the face by 2 side of release layer of anchoring layer 9 Surface become hair stricture of vagina formula, such that it is able to make end article surface (surface of hard conating 3) for hair stricture of vagina formula.Matt formula and The concavo-convex difference of height of hair stricture of vagina formula due to due to and become in each printing process and cause pore, therefore preferably more than 1 μm And in less than 30 μm of scope.In addition, the average thickness of anchoring layer 9 is preferably in more than 2 μm and less than 15 μm of scope.As anchor The material of given layer 9 is not particularly limited, but from from the viewpoint of grappling performance and thermostability, preferably the third of 2 curing components types Olefin(e) acid carbamate or 2 curing components type polyester urethanes.
(hard conating 3)
Hard conating 3 is preferably noncohesive state, and by by the irradiation ultraviolet radiation after transferred object is transferred to or electricity Beamlet and the resin formation that can be crosslinked.It is because as the reasons why crosslinking after transfer, the transfer film of present embodiment It is many used in injection mo(u)lding or heating transfer method, be easy to occur if being crosslinked in advance in the extension of transfer fracture, Become bad order.As noncohesive method is realized before transfer, mainly there is following 3 method.As the 1st method, It is the method for the acrylate or methacrylate using polymer electrolyte.As the 2nd method, it is using isocyanates/many The crosslinking such as first alcohol resin or epoxy resin/amine is that resin makes liquid or the ultraviolet curable resin of semi liquid state somewhat solidify and become Into noncohesive method.3rd method is slightly irradiation ultraviolet radiation or electron beam and the method that becomes semi-cured state.
1st method used in present embodiment.As reason, can become with the adaptation of release layer 2 in the 2nd method Obtaining too high fissility as transfer film can become insufficient.On the other hand, in the 3rd method, ultraviolet irradiation machine or electricity The intensity of beamlet irradiating machine is uneven or repeatability can become problem, and process cost can be uprised.
In addition, for the 1st method when, in order to when being inviscid and injection mo(u)lding, resin will not flow, preferably point Son amount is more than 50,000 and glass transition temperature is more than 60 DEG C of the acrylic acid tree with acryloyl group or methylacryloyl Fat (acrylic acrylate).But, the acrylic resin is due to being macromolecule, thus has inclining for ultra-violet solidified variation To case hardness is deteriorated sometimes.In order to make up the shortcoming (i.e. in order to improve case hardness), need in aforesaid propylene acid resin Addition nano-silicon dioxide particle.When the addition of nano-silicon dioxide particle is less than 10 weight % relative to acrylic resin, The effect to hardness is not observed.And when being more than 40 weight %, became crisp, wear no resistance.Therefore, nanometer titanium dioxide silicon grain Son optimum addition be relative to acrylic resin be 10 weight % less than 40 weight % in the range of.
Nano-silicon dioxide particle in hard conating 3 is made an addition in order to maintain the transparency, preferable particle size is more than 10 and little In the range of 100nm.In addition, the nano-silicon dioxide particle for being added is preferably by with acryloyl group/methacryl Silane coupler of base etc. is surface-treated, but it is also possible to be only untreated nano-silicon dioxide particle.
In addition, in general, ultraviolet curable resin has the weak tendency of resistance to abrasion.It is therefore preferable that solid in ultraviolet Marginally add polytetrafluorethylepowder powder or Tissuemat E, metallic soap etc. in changing resin to seek to improve slickness.
In addition, the thickness of the hard conating 3 is in the performance in view of hardness and cure shrinkage, cost, preferably more than 2 μm And in less than 10 μm of scope.
(priming coat 4)
Priming coat 4 be for ensuring that hard conating 3 with band layer 5 closely sealed layer, preferably by polyester polyol resin or third The resin with hydroxyl such as vinyl chloride-vinyl acetate resin of the polyol resins such as olefin(e) acid polyol resin and/or hydroxyl Formed with the resin of isocyanate compound composition.In addition, the thickness of priming coat 4 is not particularly limited, it is still further preferred that 0.5 μm Above and in less than 10 μm of scope.
(banding layer 5)
Layer 5 is banded compared with above layers, no special difference in terms of material.As the energy in the formation for banding layer 5 Enough general printings banded technology, can enumerate using color ink certainly for adopting, can also enumerate pearly-lustre or fluorescence, reflecting mirror, The special printing such as reflex reflection, magnetic printing, the pressure that concaveconvex structure (various lens effects or hologram) is formed by heat or ultraviolet Flower is processed, forms thin film formation technology of aluminum or silver, chromium, titanium oxide, zinc sulfide etc. etc. by vacuum evaporation or sputtering.
(adhesive linkage 6)
As adhesive linkage 6, it is possible to use known heat sealability bonding agent or adhesive agent.As adhesive linkage 6, for example, can lift Go out vinyl acetate resin, ethylene vinyl acetate copolymer resinses, vinyl chloride-vinyl acetate resin, acrylic resin, butyraldehyde Resin, epoxy resin, polyester resin, polyurethane resin, acrylic acid seriess adhesive agent, rubber series adhesive agent, silicon systems adhesive agent, amino Formic acid esters system adhesive agent etc..In addition, the thickness of adhesive linkage 6 is it is still further preferred that in more than 0.5 μm and less than 10 μm of scope.
Embodiment
The present invention is explained following with embodiment.
1 > of < embodiments
With biaxially oriented polyester film (the Rhizoma Sparganii Resins Corporation system that thickness is 50 μm:G440E50) as base material film 1, at which In applied according to the release layer that the mode that dried thickness reaches 0.2 μm is coated with following compositions using micro- intagliotype on a face Cloth liquid, is dried.Afterwards, aging 5 days at 50 DEG C, form release layer 2.
(composition of release layer coating fluid)
Acrylic polyol resin (eastern Rong Huacheng company systems LC#6560):100 weight portions
Celluloid (H1/4):10 weight portions
Acrylic resin:5 weight portions
(it is the copolymer of the own ester of acrylic acid 6- hydroxyls and stearyl methacrylate, and there is hydroxyl and chain alkyl (carbon Number is for 18))
Isocyanate compound:20 weight portions
(Japanese Polyurethane company systems CORONATE L)
Then, it is coated with according to the mode that dried thickness reaches 5.0 μm using micro- intagliotype on the release layer 2 following The hard conating coating fluid of composition, is dried.Thus, forming hard conating 3.
(composition of hard conating coating fluid)
Ultraviolet curable resin:100 weight portions
(DIC company systems RC29-117:Added with ultraviolet polymerization initiator, 30%) solid constituent is
Silicon dioxide:20 weight portions
(Nissan Chemical company system:Particle diameter is 10~20nm, MEK dispersion liquids, solid constituent for 30%)
Then, acrylic acid is coated with according to the mode that dried thickness reaches 2 μm using intagliotype on the hard conating 3 many First alcohol/isocyanates system coating fluid (Toyo Ink company system:V425 anchoring agents), form priming coat 4.Then, in the priming coat 4 The upper layer that bands using regulation is printed with coating fluid, and layer 5 is banded in formation.Further, this band on layer 5 using intagliotype by The mode for reaching 1 μm according to dried thickness is coated with adhesive linkage coating fluid (Toyo Ink company system:K539HP bonding varnish), Form adhesive linkage 6.Thus, making the transfer film of embodiment 1.
The transfer film being obtained as described above is arranged on inside the metal die of injection moulding machine, to polycarbonate/ABS alloy tree Fat carries out injection mo(u)lding, is transferred while molding, obtains products formed.
2 > of < embodiments
In addition to the release layer coating fluid using following compositions, release layer 2 is formed similarly to Example 1.
(composition of release layer coating fluid)
Acrylic polyol resin (eastern Rong Huacheng company systems LC#6560):100 weight portions
Celluloid (H1/4):10 weight portions
Acrylic resin:5 weight portions
(it is the copolymer of the own ester of acrylic acid 6- hydroxyls and stearyl methacrylate, and there is hydroxyl and chain alkyl (carbon Number is for 18))
Organosilicon modified crylic acid resin (day oil company system:FS730):5 weight portions
Isocyanate compound:20 weight portions
(Japanese Polyurethane company systems CORONATE L)
Then, it is coated with according to the mode that dried thickness reaches 5.0 μm using micro- intagliotype on the release layer 2 following The hard conating coating fluid of composition, is dried.Thus, forming hard conating 3.
(composition of hard conating coating fluid)
Crylic acid acrylic ester resin:100 weight portions
(great achievement Fine Chemical company systems:6 ten thousand) molecular weight is
Photoepolymerizationinitiater initiater (BASF AG's system:IRGACURE 184):3 weight portions
Isocyanate compound:5 weight portions
(Japanese Polyurethane company systems:CORONATE HL)
Afterwards, operate similarly to Example 1, sequentially form priming coat 4, band layer 5, adhesive linkage 6, make embodiment 2 Transfer film.The transfer film of such making is simultaneously transferred with the injection mo(u)lding using polycarbonate/ABS alloy resin, is obtained into Type product.
3 > of < embodiments
Using base material film 1 similarly to Example 1, reached according to dried thickness using micro- intagliotype in one face The anchoring layer coating fluid of following compositions is coated with to 5.0 μm of modes, is dried.Thus, forming anchoring layer 9.
(composition of anchoring layer coating fluid)
Acrylic polyol resin:100 weight portions
(eastern Rong Huacheng company systems:LC#6560)
Silica-filled thing (Evonik Degussa company systems:Particle diameter is 6 μm):5 weight portions
(company system is spun to polyacrylonitrile implant by Japan:Particle diameter is 7 μm):5 weight portions
Isocyanate compound:10 weight portions
(Japanese Polyurethane company systems:CORONATE HL)
Then, it is coated with according to the mode that dried thickness reaches 1.0 μm using micro- intagliotype in the anchoring layer 9 following The release layer coating fluid of composition, is dried.Thus, forming release layer 2.
(composition of release layer coating fluid)
Acrylic polyol resin (eastern Rong Huacheng company systems:LC#6560):100 weight portions
Celluloid (H1/4):10 weight portions
Acrylic resin:5 weight portions
(it is the copolymer of the own ester of acrylic acid 6- hydroxyls and stearyl methacrylate, and there is hydroxyl and chain alkyl (carbon Number is for 18))
Organosilicon modified crylic acid resin (day oil company system:FS730):5 weight portions
Isocyanate compound:20 weight portions
(Japanese Polyurethane company systems:CORONATE L)
Then, priming coat 4, hard conating 3 are stacked gradually on the release layer 2 similarly to Example 2, layer 5, bonding is banded Layer 6, makes the transfer film of embodiment 3.
Then, in the above-mentioned transfer film of the interior installation of vacuum compression air forming machine (TOM forming machines) and by polycarbonate/ABS The notebook personal computer basket that alloy resin is constituted, carries out vacuum compression air forming at 120 DEG C.Thus, being had The products formed on the surface of the matt formula of Jing transfers.
1 > of < comparative examples
On a face of base material film 1 similarly to Example 1, reached according to dried thickness using micro- intagliotype 0.2 μm of mode is coated with silicon-type coating fluid (the Momentive Performance as release layer coating fluid Materials company systems:SHC-900).Afterwards, bakeed at 180 DEG C, formed release layer 2.
Then, hard conating 3 is formed similarly to Example 2 on the release layer 2.
< is evaluated and method >
For each transfer film made in embodiment 1~3 and comparative example 1, release layer 2, hard conating 3 are evaluated by visual observation The transferability of film property and each transfer film to article shaped.By the situation for not having abnormal appearance (level having no problem in practicality) Be evaluated as zero, the situation (problematic in practicality) for having abnormal appearance is evaluated as ×.The result of evaluation is shown in into table 1.
Table 1
< comparative result >
The release layer 2 of the transfer film obtained in embodiment 1~3, hard conating 3, band layer 5, adhesive linkage 6 formation it is good It is good.In addition, the transfer to the article shaped using each transfer film also obtain good result.
Although and the transfer film obtained in comparative example 1 can carry out the formation of the release layer 2 on base material film 1, being laminated in In the formation of hard conating 3 thereon, there is the film depression of coating fluid in the coating of hard conating coating fluid, fail to be formed Even film.Thus, it is impossible to band layer 5, adhesive linkage 6 after formation, fail to produce transfer film.
Utilization probability in industry
The transfer film obtained by the present invention can be used for be in electrical article, residential equipment, office equipment, auto parts etc. The surface protection of the middle panel component for utilizing etc. is simultaneous to band.
Symbol description
Layer, 6 adhesive linkages, 7 article shapeds, 9 grapplings are banded (print) in 1 base material film, 2 release layers, 3 hard conatings, 4 priming coats, 5 (and design) layer.

Claims (5)

1. a kind of transfer film, it is characterised in that its be at least stack gradually on a face of base material film release layer, hard conating, The transfer film of adhesive linkage, wherein, with the acroleic acid polyurethane tree with the chain alkyl that carbon number is more than 10 and less than 30 Fat forms the release layer, by least acrylic polyol resin, with the long-chain that hydroxyl and carbon number are more than 10 and less than 30 The cross-linking reaction of the acrylic resin and isocyanate compound of alkyl is generating the acrylated polyurethane resin.
2. transfer film according to claim 1, it is characterised in that containing the cellulose with hydroxyl in the release layer Derivant.
3. transfer film according to claim 1 and 2, it is characterised in that containing with hydroxyl third in the release layer Olefin(e) acid organic siliconresin.
4. transfer film according to claim 1 and 2, it is characterised in that set between the base material film and the release layer It is equipped with anchoring layer.
5. transfer film according to claim 4, it is characterised in that make the face by the release layer side of the anchoring layer It is shaped as concaveconvex shape.
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