CN104972779B - For hectographic printing without substrate bonding transfer belt and its manufacture method - Google Patents

For hectographic printing without substrate bonding transfer belt and its manufacture method Download PDF

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Publication number
CN104972779B
CN104972779B CN201510063673.6A CN201510063673A CN104972779B CN 104972779 B CN104972779 B CN 104972779B CN 201510063673 A CN201510063673 A CN 201510063673A CN 104972779 B CN104972779 B CN 104972779B
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CN
China
Prior art keywords
mold release
prime coat
release film
transfer belt
adhesive linkage
Prior art date
Application number
CN201510063673.6A
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Chinese (zh)
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CN104972779A (en
Inventor
张南允
李昇勉
金炫太
裴钟佑
Original Assignee
栗村化学株式会社
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Priority to KR10-2014-0041354 priority Critical
Priority to KR1020140041354A priority patent/KR101530591B1/en
Application filed by 栗村化学株式会社 filed Critical 栗村化学株式会社
Publication of CN104972779A publication Critical patent/CN104972779A/en
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Publication of CN104972779B publication Critical patent/CN104972779B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/382Contact thermal transfer or sublimation processes
    • B41M5/38207Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
    • B41M5/38214Structural details, e.g. multilayer systems

Abstract

The present invention disclose it is a kind of be used for hectographic printing without substrate bonding transfer belt and its manufacture method, when it can implement the decorations such as pattern formation, printing, evaporation in panel or screen to commercial plant, IT electronic equipments (mobile phone (Phone), tablet personal computer (Tablet PC), TV etc.) etc., implement to decorate with transfer modes.It is above-mentioned without substrate bonding transfer belt include it is light peel off mold release film, positioned at it is above-mentioned it is light peel off mold release film prime coat, positioned at above-mentioned prime coat while adhesive linkage and constitute positioned at the middle stripping mold release film simultaneously of above-mentioned adhesive linkage.

Description

For hectographic printing without substrate bonding transfer belt and its manufacture method
Technical field
This disclosure it is a kind of for hectographic printing without substrate bonding transfer belt and its manufacture method, it can be right The panel or screen of commercial plant, IT electronic equipments (mobile phone (Phone), tablet personal computer (Tablet PC), TV etc.) etc. are implemented During the decorations such as pattern formation, printing, evaporation, implement to decorate with transfer modes.
Background technology
For commercial plant or IT electronic equipments (mobile phone (Phone), tablet personal computer (Tablet PC), TV etc.) etc. Safety glass used in panel or screen (for example, safety glass of kind of touch screen panels) can implement decoration.
In order to implement this decoration, there is the side of formation, printing or the metal evaporation of progress pattern direct to safety glass Formula.
But, the mode of decorative effect is directly assigned on safety glass in the presence of the high price due to safety glass and low life Production yield rate and cause production cost rise it is inevitable the problem of.
On the other hand, at present using formation, printing, metal evaporation for implementing pattern to existing anti-splashing film etc., then will The mode that the anti-splashing film is fitted with safety glass.
Fig. 1 is the skeleton diagram for the manufacture method for representing existing anti-splashing film, and Fig. 2 is the knot for representing existing anti-splashing film The skeleton diagram of structure section.
Specifically, as shown in figure 1, existing anti-splashing film is formed in the one side of base material film (substrate film) 1 After prime coat 2, in the another side formation adhesive linkage 3 of base material film 1.Then, the above-mentioned adhesive linkage 3 of laminating and mold release film 4.Then, exist The upper surface laminating diaphragm 5 of prime coat 2, then be made anti-splashing film as shown in Figure 2.Due to being fitted with prime coat 2 and bonding The base material film 1 of layer 3 is present in the center section between mold release film 4 and diaphragm 5, therefore the anti-splashing film can be referred to as into base material (substrate) formula adhesive film.
Above-mentioned anti-splashing film removes diaphragm 5 after the completion of film in (after) process, then lead in the upper surface of prime coat Cross pattern formation, printing, evaporation etc. and form printing and patterned layer 6, and remove after mold release film 4, fit to safety glass etc Adherend 7 (reference picture 1).Being glued for safety glass etc is fitted to from there through by the printing of anti-splashing film and patterned layer 6 Junctor 7 and can implement decoration.
But, the anti-splashing film manufactured by the above method has used base material film 1 due to portion therebetween, therefore it is overall thick Degree become relatively thicker (as reference, the thickness of base material film is usually 50~125 μm), especially prime coat 2, base material film 1 and The thickness sum of adhesive linkage 3 generally reaches about 80~155 μm or so.
In addition, as noted previously, as base material film is centrally located, therefore also there is the low-down problem of optical characteristics (generally, The total light transmittance of anti-splashing film is that 88%~92%, mist degree (Haze) is 1% or so).
Prior art literature
Patent document
Patent document 1:Korean Patent Laid the 2013-0071582nd
The content of the invention
The concrete example of the present invention aim to provide in one aspect it is a kind of for hectographic printing without substrate bonding transfer belt and Its manufacture method, it is to commercial plant or IT electronic equipments (mobile phone (Phone), tablet personal computer (Tablet PC), TV etc.) Deng panel or screen decorated when, with safety glass of counter plate etc. directly implement decoration mode compared with, can not only Easily implement decoration, and production cost can be reduced.
In addition, the concrete example of the present invention is in another aspect aimed to provide and a kind of turned for hectographic printing without substrate bonding Print band and its manufacture method, it can reduce the thickness of splicing tape and be able to ensure that excellent light characteristic.
A kind of turn in addition, the concrete example of the present invention is aimed to provide in another aspect for hectographic printing without substrate bonding Print band and its manufacture method, its in order to formed transfer before printing and patterned layer and by mold release film from hectographic printing with without base material When taking removing, the protuberance of prime coat can not producedOr tunnel(l)ingThe change Deng caused by In the case of shape, damage, the mold release film of side is easily removed from prime coat, and adhesive linkage can be maintained at opposite side Without making adhesive linkage be deformed or damage in mold release film.
In addition, the concrete example of the present invention aims to provide a kind of hectographic printing with without substrate tape manufacturer in another aspect Method, it can improve hot and humid reliability of the above-mentioned hectographic printing without base material film.
The concrete example offer of the present invention is a kind of to be bonded transfer belt for hectographic printing without base material (non substrate), It is characterised in that it includes:It is light to peel off mold release film, positioned at the prime coat of the above-mentioned light one side for peeling off mold release film, positioned at above-mentioned priming paint Layer one side adhesive linkage, and the one side positioned at above-mentioned adhesive linkage middle stripping mold release film;Above-mentioned light stripping mold release film is by the One basilar memebrane and the first release layer for connecting with above-mentioned prime coat are constituted, above-mentioned middle stripping mold release film by the second basilar memebrane and with it is upper The second release layer composition that adhesive linkage connects is stated, the above-mentioned light peeling force for peeling off mold release film is less than the above-mentioned middle stripping for peeling off mold release film From power.
In the concrete example of illustration, above-mentioned prime coat is P1 with the light peeling force for peeling off mold release film, and above-mentioned adhesive linkage is with The peeling force for peeling off mold release film is P2, and P2/P1 is 2.0~5.0.
In the concrete example of illustration, above-mentioned prime coat is 1~5gf/25mm with the light peeling force (P1) for peeling off mold release film, on It is 2~25gf/25mm to state adhesive linkage and the peeling force (P2) of middle stripping mold release film.
In the concrete example of illustration, the bonding force of above-mentioned adhesive linkage is preferably 1000gf/25mm~3000gf/25mm.
In the concrete example of illustration, the surface tension of prime coat is preferably shorter than the table of light the first release layer for peeling off mold release film Face tension force.
In the concrete example of illustration, the surface tension of above-mentioned first release layer is preferably 35~45dyne.
In the concrete example of illustration, the surface tension of above-mentioned prime coat is preferably 25~35dyne.
In the concrete example of illustration, above-mentioned first release layer because of the surface roughness of the first basilar memebrane not produce priming paint The mode of the surface curvature of layer is coated on the first basilar memebrane, for example, can have 0.5~3g/m2Releasing agent coating weight.
In the concrete example of illustration, preferably above-mentioned prime coat is fitted after heat cure with adhesive linkage.
In the concrete example of illustration, the thickness sum of above-mentioned prime coat and adhesive linkage is preferably 10~30 μm.
In the concrete example of illustration, the above-mentioned total light transmittance without substrate bonding transfer belt can be more than 99%, mist Degree can be less than 0.15%.
There is provided a kind of manufacture without substrate bonding transfer belt for hectographic printing in another concrete example of the present invention Method, wherein, it will gently peel off mold release film, prime coat, adhesive linkage and middle stripping mold release film and be laminated.
In the concrete example of illustration, above-mentioned manufacture method comprises the following steps:In the one side formation first of the first basilar memebrane Release layer and form light the step of peel off mold release film;The step of prime coat being formed on above-mentioned first release layer;In the second substrate The step of the second release layer is formed on film and mold release film is peeled off in being formed;The step of adhesive linkage is formed on above-mentioned second release layer Suddenly;And the light stripping mold release film by the middle stripping mold release film for being formed with above-mentioned adhesive linkage with being formed with above-mentioned prime coat is pasted The step of conjunction.
In the concrete example of illustration, above-mentioned manufacture method comprises the following steps:In the one side formation first of the first basilar memebrane Release layer and form light the step of peel off mold release film;The step of prime coat being formed on above-mentioned first release layer;In above-mentioned priming paint The step of adhesive linkage being formed on layer;The step of the second release layer is formed on the second basilar memebrane and mold release film is peeled off in being formed;With And the step of light stripping mold release film of above-mentioned adhesive linkage and prime coat is fitted with above-mentioned middle stripping mold release film will be formed with.And And, here, it is preferred that after the heat cure of the paint base composition of prime coat, being fitted with adhesive linkage.
According to the concrete example of the present invention, due to commercial plant or IT electronic equipments (mobile phone (Phone), flat board electricity Brain (Tablet PC), TV etc.) etc. panel or screen when being decorated, safety glass of counter plate etc. does not implement decoration directly And easily implement decoration by transfer modes, therefore compared with directly implementing decoration to safety glass etc., can be easily real Decoration is applied, and production cost can be reduced.
In addition, by using between prime coat and adhesive linkage not comprising base material film without base material (non-substrate) Mode, the thickness of integral adhesive film can be reduced and excellent light characteristic is ensured.
In addition, by forming light stripping mold release film with without the prime coat in substrate tape in hectographic printing, and in adhesive linkage shape Into middle stripping mold release film, so that the peeling force between prime coat and adhesive linkage is different, so that printing and figure before transfer is formed During case portion, in the case of can not occurring protuberance or tunnel(l)ing etc. on the prime coat of printing and drafting department formation, easily Remove it is light peel off mold release film, and prime coat can be made to be maintained at adhesive linkage in middle stripping mold release film, without make prime coat with Adhesive linkage is deformed or damaged.
Additionally it is possible to improve hot and humid reliability of the hectographic printing without base material film.
Brief description of the drawings
Fig. 1 is the outline for representing the manufacture method of existing anti-splashing film and the specific method using its decorative effect Figure.
Fig. 2 is the skeleton diagram of the section for the structure for representing existing anti-splashing film.
Fig. 3 is the outline of the section of the structure without substrate bonding transfer belt for a concrete example for representing the illustration of the present invention Figure.
Fig. 4 is system of the hectographic printing without substrate bonding transfer belt for a concrete example for representing the illustration of the present invention successively Make the skeleton diagram of method and the specific method using its decorative effect.
Fig. 5 is system of the hectographic printing without substrate bonding transfer belt for other concrete examples for representing the illustration of the present invention successively Make the skeleton diagram of method and the specific method using its decorative effect.
Fig. 6 be represent the illustration of the present invention other concrete examples without in substrate bonding transfer belt, remove it is light peel off it is de- Mould film and the knot for implementing the splicing tape before pattern formation, printing, evaporation etc. are transferred after decorative processing, and the decoration for carrier film of fitting The skeleton diagram of the section of structure.
Fig. 7 is represented in the adhesive film after the decoration shown in Fig. 6, is peeled off mold release film in further removing and is transferred to steel Change glass and remove carrier film, transfer after the structure without substrate bonding transfer belt section skeleton diagram.
Symbol description
1:Basilar memebrane 2:Prime coat
3:Adhesive linkage 4:It is stripped film layer
5:Protection film layer 6:Printing and patterned layer
7:Adherend 10:It is light to peel off mold release film
11:First basilar memebrane 12:First release layer
20:Prime coat 30:Adhesive linkage
40:Middle stripping mold release film 41:Second release layer
42:Second basilar memebrane 50:Printing and patterned layer
60:Carrier film 70:Safety glass
100:(before transfer and printing) is without substrate bonding transfer belt
101:Transfer before print after without substrate bonding transfer belt
102:After transfer without substrate bonding transfer belt
Embodiment
Below, the concrete example that present invention will be described in detail with reference to the accompanying.
In this manual, " no base (non-substrate) material is bonded transfer belt " refers to gently peeling off mold release film with Prime coat is only existed between stripping mold release film with adhesive linkage without there is the base material formed for prime coat with adhesive linkage in pars intermedia (substrate) bonding transfer belt, is the transfer belt that printing and patterned layer are transferred to the adherend such as panel or screen.It With there is base material (substrate) formula splicing tape of the base material (substrate) for prime coat and adhesive linkage formation in pars intermedia It is different.
In this manual, adherend refers to be transferred with without substrate bonding according to the hectographic printing of the concrete example of the present invention The component that band is applicable, for example, the toughened glass panel of common commercial plant, IT electronic products or display device etc. Or screen etc. needs to implement the component of decoration.
In this specification, printing and patterned layer refer to the layer that implements the decorations such as the formation of pattern, printing, evaporation.
In this specification, light mold release film of peeling off refers to that peeling force is less than the film of the peeling force of middle stripping mold release film.
In this specification, middle mold release film of peeling off refers to that peeling force is more than the film of the light peeling force for peeling off mold release film.
Fig. 3 is the section for representing the structure without substrate bonding transfer belt 100 according to the concrete example of the invention illustrated Skeleton diagram.
As shown in figure 3, the present invention's has light stripping mold release film 10, prime coat 20, bonding without substrate bonding transfer belt 100 The structure that layer 30, middle stripping mold release film 40 are laminated.Above-mentioned light stripping mold release film 10 is by the first basilar memebrane 11 and first demoulding Layer 12 is formed, and the first release layer 12 connects with prime coat 20, and middle stripping mold release film 40 is by the second basilar memebrane 42 and the second release layer 41 form, and the second release layer 41 connects with adhesive linkage 30.
The present invention concrete example hectographic printing with without in substrate bonding transfer belt, the shape of printing and pattern before transfer Into directly in prime coat realization.That is, prime coat turns into printing and the patterned layer forming portion for being formed with printing and patterned layer.Therefore, Need to peel off first it is light peel off mold release film 10, and need to maintain prime coat occur without protuberance, tunnel(l)ing (tunneling), Other deformations are damaged.In addition, it is desirable to which prime coat 20 and adhesive linkage 30 reliably fit in middle stripping mold release film 40.
In the concrete example of illustration, when above-mentioned prime coat and the light peeling force for peeling off mold release film be P1, above-mentioned adhesive linkage with When the middle peeling force for peeling off mold release film is P2, P2/P1 is preferably 2.0~5.0.
If light stripping mold release film is poor small with the knockout press of middle stripping mold release film, when removing light stripping mold release film 10 Adhesive linkage or prime coat 20 can be damaged, therefore, the light knockout press peeled off between mold release film and middle stripping mold release film is improved as far as possible Difference be suitable.
In one embodiment, the light peeling force for peeling off mold release film 10 is preferably 1~5gf/25mm, middle stripping mold release film 40 peeling force is preferably 2~25gf/25mm.If the peeling force for gently peeling off mold release film 10 is less than 1gf/25mm, by institute State the defect such as light stripping mold release film 10 and the protuberance of the generation of prime coat 20 or tunnel reaction and will be difficult to protect prime coat 20, if More than 5gf/25mm, then when peeling off light stripping mold release film 10, prime coat or adhesive linkage are possible to be stripped.
On the other hand, the above-mentioned middle demoulding peeling force for peeling off mold release film 40 is preferably middle after being placed 24 hours at 70 DEG C shells Peeling force from mold release film 40 is no more than 30gf/25mm.Because after printing and patterned layer is formed, in the printing and pattern Layer will fit carrier film 60, it is middle stripping mold release film 40 and adhesive linkage between peeling force be more than carrier film 60 with printing and pattern In the case of peeling force between layer, middle stripping mold release film 40 is possible to not be stripped.
Below, each thin portion is described in more detail to constitute.
The above-mentioned basilar memebrane 42 of first basilar memebrane 11 and second be by the optical film of the material manufacture with heat resistance, comprising Heat-resistant resin is (for example, polyethylene terephthalate (Polyethylene terephthalate;PET), poly- naphthalene diformazan Sour glycol ester (Polyethylene naphthalate), polybutylene terephthalate (PBT) (Polybuthylene Polyester (Polyester) resin such as terephthalate)), preferably can be PET film.Above-mentioned first basilar memebrane and/or second The thickness of basilar memebrane, is illustrated as non-limiting, can have the thickness in 25~188 μ ms.
In one embodiment, the tensile strength of above-mentioned first basilar memebrane and/or the second basilar memebrane is in MD directions (width Direction) can be 22.0 ± 8kgf/mm2, at TD directions (length direction) can be 30.0 ± 9kgf/mm2.In addition, above-mentioned first The elongation of basilar memebrane and/or the second basilar memebrane can be 150 ± 80% in MD directions, can be 100 ± 80% in TD directions.
On the other hand, in one embodiment, the second basilar memebrane (basilar memebrane of middle stripping mold release film) is preferably orientation Angle is the film of 6 ° (degree) below.More specifically, the angle of orientation is preferably 0 °~6 °.The angle of orientation is used as substrate during the second basilar memebrane of manufacture The angle that film is stretched, it represents the inclination of orientation main shaft.In the case that the angle of the above-mentioned angle of orientation is less than 6 °, in rear process In, when adhesive film is fitted in into adherend, foreign matter present on adherend will be high-visible.Glued therefore, it is possible to improve The precision during inspection of foreign substance of junctor.
In order to form prime coat 20, first release layer 12 on surface of the first basilar memebrane 11 is coated on preferably with high Surface tension (surface tension for being more than prime coat), and with the low knockout press with prime coat 20.
The surface tension of first release layer 12 is preferably 30~50dyne, more preferably 35~45dyne.First release layer 12 releasing agent is not particularly limited, preferably by the melamine series or the releasing agent of acrylic acid series of non-silicone system, this Outside, it can be used by the use of the curing mode of heat and by the use of the curing mode of ultraviolet as curing mode.
The coating weight of plastics included in first release layer 12 is not particularly limited, but in view of stripping performance, it is excellent It is selected in 0.3~4g/m2In the range of, more preferably in 0.5~3g/m2In the range of.In the case where above-mentioned coating weight is low, due to The surface roughness of first basilar memebrane 11 can influence prime coat 20 (that is, in order to not produced because of the surface roughness of the first basilar memebrane The surface curvature of raw prime coat), therefore preferably maintain certain coating weight.
The releasing agent of second release layer 41 is also not particularly limited, using performance demoulding thing preferably in acrylic adhesive Property additive type polysiloxane series, and manufactured under drying temperature below 130 DEG C.If the drying temperature more than 130 DEG C Lower manufacture, due to the thermal contraction of film, may result in the generation of transverse fold and/or longitudinal fold.In addition, as not applying the poly- of heat Siloxane-based releasing agent, can also use the acrylic polysiloxane of ultraviolet curing type, the polysiloxanes containing sulfydryl and Polysiloxanes containing epoxy radicals.
Rubbing method usually used in this field can be used, by above-mentioned release layer (the first release layer and/or second demoulding Layer) it is formed at basilar memebrane (the first basilar memebrane and/or the second basilar memebrane).Specifically, intaglio plate coating, Meyer rod can for example be passed through The various methods such as coating, airblade coating and scraper for coating, after releasing agent is applied on basilar memebrane, pass through heating, purple The methods such as outside line irradiation are dried, are solidified to form.
On the other hand, the printing formed in the case of prime coat 20 in rear process on prime coat 20 and patterned layer Bonding force with prime coat 20 is important.For that purpose it is necessary to which its surface tension to be formed larger than to the resin of printing and patterned layer The surface tension of (for example, UV patterned resins and printing-ink resin).In addition, in order to form priming paint in gently stripping mold release film 10 Layer 20, the surface tension of prime coat 20 is necessarily less than the surface tension of light the first release layer for peeling off mold release film 10.Therefore, priming paint The surface tension of layer 20 is preferably 25~35dyne.As the material available for prime coat, it can use by carbamate third The combination of monomer, oligomer, the polymer of olefin(e) acid ester, acrylic acid-acrylic ester, epoxy acrylate etc. etc..Furthermore, it is possible to root Add light trigger and curing agent to use according to curing mode.
The formation of prime coat 20 can also use rubbing method usually used in this field.Specifically, intaglio plate can be passed through The various methods such as coating, the coating of Meyer rod coating, slot die, airblade coating and scraper for coating, paint base composition is applied Cloth by methods such as heat cure or ultraviolet curings on the first release layer, being dried and realize its solidification afterwards.
Using heat cure mode it is suitable preferably when forming prime coat in the concrete example of illustration.Because energy Enough strengthen chemically being combined between prime coat and adhesive linkage, in terms of the cementability between adhesive linkage and prime coat Obtain high reliability.Compared with reaction terminates when ultraviolet curing in the case of being solidified using ultraviolet, heat cure Reaction makes prime coat maintain unreacted state, so as to be at the shape that can be chemically combined with adhesive linkage afterwards State, so as to the cementability between adhesive linkage and prime coat in terms of obtain high reliability.
On the other hand, all bonding agents usually used in this field go for adhesive linkage 30.
In the concrete example of illustration, the main component of adhesive composite is preferably acrylic acid series copolymer.It is highly preferred that Using ensure the transparency, used the copolymer of the acrylate monomer with 4~20 carbon atoms.Using carbon number In the case of carrying out copolymerization for the monomers of more than 20, due to producing steric hindrance (Steric caused by the interference of p tracks Hindrance) so that the increase of the ratio of unreacted monomer, the problems such as bubble in bonding reliability, spot can be caused.With This is on the contrary, in the case where using the monomer that carbon number is less than 4, easily cause gasification so that internal pressure increase, thus Copolymerization can be caused uneven and problem for security.
In one embodiment, when synthesizing aforesaid propylene acid based copolymer, preferably also comprising the function that can be crosslinked Group.In the case of the copolymer not comprising functional group, can produce cohesiveness between bonding agent decline, reliability evaluation when it is grand Rise, bubble, transfer the problems such as.Preferably use and comprise only carboxyl, comprise only hydroxyl or not only contain carboxyl but also contain hydroxyl conduct The monomer of functional group.It is highly preferred that the use of comprise only the monomer of hydroxyl being suitable.In the case where wrapping carboxylic monomer, There is the corrosion or oxidation that cause gluing of surfaces due to strong reaction, so as to the reliability to product Bring baneful influence.
In one embodiment, from the cohesiveness or the purpose of durability in the structure for strengthening above-mentioned copolymer, Preferably use the crosslinking agent that there is reactivity with hydroxyl.Crosslinking agent can use diisocyanate, tetrafunctional epoxides, metal The compounds such as chelate, amine, acid amides.Wherein, have using the transparency that can keep bonding agent and with various superficial layers excellent Different adaptation and with HDI (HMDI) structure isocyanate compound is most preferred.
In one embodiment, the molecular weight of bonding agent is preferably 70~1,500,000 or so, and glass transition temperature (Tg) is preferably For -50 °~-10 DEG C.If above-mentioned glass transition temperature is too low, the cohesiveness of bonding agent can be reduced, and if glass transition temperature Too high, the cementability of the bonding agent and adherend can be reduced.
In addition, in one embodiment, making the functional group reactionses of crosslinking agent and bonding agent, so that gel content turns into More than 60%, it is preferred to be more preferably 60%~80%.Above-mentioned gel content is higher, the cohesiveness of adhesive linkage and heat-resisting Property is more excellent, thus it is excellent in terms of physical property, but if due to when gel content makes adhesive linkage really up to the mark more than 80%, then in nothing Substrate bonding transfer belt is fitted in the state of adherend, when being preserved under the conditions of hot and humid, can produce bubble and tunnel Reaction.
In one embodiment, silane coupler can also be added into above-mentioned adhesive composite.It is used as above-mentioned silicon Alkane coupling agent, preferably comprises the silane coupler of epoxy radicals.Pass through the epoxy radicals and the reactive base of copolymer of silane coupler Unite to merge and alkoxysilane moiety is combined with the adherend that adhesive is applicable, so as to play raising bonding stability simultaneously And prevent the effect of the adhesive strength reduction in long-term placement under the conditions of hot and humid.
In addition, in one embodiment, for specific purpose, can further be mixed into above-mentioned adhesive composite Plasticizer, epoxy resin and curing agent etc. are used, can also further be added according to general purpose ultra-violet stabilizer, Antioxidant etc. is used.
As unrestricted illustration, relative to the acrylic acid series bonding agent composition of 100 parts by weight, adhesive linkage 30 can be wrapped The silane coupler of isocyanates system curing agent and 0.01~1.0 parts by weight containing 0.1~0.3 parts by weight.In addition, relative to The acrylic acid series bonding agent composition of 100 parts by weight, can include the epoxy curing agent of 0.1~2.0 parts by weight.
In one embodiment, the coating weight of adhesive linkage is preferably 5~50g/m2.More preferably 10~20g/m2.Work as painting Cloth amount is less than 5g/m2When, bonding force is significantly reduced, so that the problem of protuberance when can occur reliability evaluation, when coating weight is 50g/m2During the above, the problems such as occurring due to the distinctive viscoplasticity of bonding agent by pressure resistance.
In addition, adhesive linkage 30 preferably has 1000~3000gf/25mm bonding force.When bonding force is less than 1000gf/ During 25mm, the adhesive linkage 30, can gassing when being preserved under the conditions of hot and humid in the state of adherend is fitted in Or tunnel reaction.In addition, when more than 3000gf/25mm, when occurring and when the fitting bad of adherend, nothing such as safety glass Method is removed, so as to the main cause risen as production cost.
The coating of bonding agent can use rubbing method usually used in this field to implement, and be not particularly limited, specifically Ground can use mould coating machineRoll gap coating machine Intaglio plate roll-coater, comma are applied Cloth machine etc. is implemented.
The hectographic printing of the concrete example of the illustration of the present invention without substrate bonding transfer belt with that can form very thin, so that bottom The thickness sum of enamelled coating 20 and adhesive linkage 30 is about 10~30 μm.
In addition, the present invention illustration concrete example hectographic printing with without substrate bonding transfer belt especially in optical characteristics It is excellent, for example can be with more than 90% total light transmittance, the total light that more preferably can have more than 99% is transmitted Rate.
Below, the manufacture method of the concrete example of the present invention is described in detail.
In the concrete example of the present invention, mold release film, prime coat, adhesive linkage and middle stripping mold release film will can be gently peeled off Stacking, so as to manufacture above-mentioned without substrate bonding transfer belt.
Fig. 4 is the hectographic printing for a concrete example for representing the illustration of the present invention successively with the manufacturer without substrate bonding film The skeleton diagram of method.
In a concrete example, as shown in figure 4, the manufacture method without substrate bonding transfer belt of the transfer modes of the present invention Light stripping mold release film 10 (Fig. 4 A) can be formed by one side the first release layer 12 of formation in the first basilar memebrane 11, in institute State and prime coat 20 (Fig. 4 B) is formed on the first release layer 12, form the second release layer 41 on the second basilar memebrane 42 and formed Mold release film 40 is peeled off, is formed on after adhesive linkage 30, adhesive linkage 30 is fitted (Fig. 4 C) with prime coat 20, so that nothing is made Substrate bonding transfer belt (Fig. 4 D).
Fig. 5 is system of the hectographic printing without substrate bonding transfer belt for other concrete examples for representing the illustration of the present invention successively Make the skeleton diagram of method.
In other concrete examples, as shown in figure 5, the manufacturer without substrate bonding transfer belt of the transfer modes of the present invention Method can form light stripping mold release film 10 (Fig. 5 A) by one side the first release layer 12 of formation in the first basilar memebrane 11, Prime coat 20 (Fig. 5 B) is formed on first release layer 12, adhesive linkage 30 is formed on above-mentioned prime coat 20, on the other hand, The middle stripping mold release film 40 that the second release layer 41 is formed with the second basilar memebrane is fitted (Fig. 5 C ') with adhesive linkage 30, from And be made without substrate bonding transfer belt (Fig. 5 D).
In above-mentioned manufacture method, compared with manufacture shown in Fig. 4, in situation about being manufactured using the mode shown in Fig. 5 Under, the stickiness of prime coat and adhesive linkage is excellent and can improve hot and humid reliability of the hectographic printing without base material film, because This is preferred.
Process (the printer before transfer after by that can also implement without substrate bonding transfer belt made from above-mentioned manufacture method Sequence).That is, referring again to the E and Fig. 5 E in Fig. 4, rear process can be by removing light stripping [the first basilar memebrane 11 of mold release film 10 + the first release layer 12] after, implement pattern formation, printing and evaporation processing etc. to form printing and patterned layer 50, in above-mentioned print Fitted on brush and patterned layer carrier film 60, thus be made before transfer as shown in Figure 6 and after printing without substrate bonding transfer belt 101 (reference pictures 6).
On the other hand, referring again to Fig. 4 F and Fig. 5 F, can also from before above-mentioned transfer without substrate bonding transfer belt Mold release film 40 [second the second release layers of basilar memebrane 42+ 41] is peeled off in 101 removings, so as to be transferred to safety glass etc In adherend 70.Moreover, when removing above-mentioned carrier film 60, the nothing after the transfer of structure as shown in Figure 7 can be finally made Substrate bonding transfer belt 2,102 (reference picture 7).
Below, the concrete example that embodiments of the invention describe the present invention in detail is enumerated.Following embodiments are merely to help There is provided in the understanding present invention, the scope of the present invention is not defined therefrom.
[embodiment 1]
Relative to the melamine series resin of 100 parts by weight, coordinate 1 parts by weight curing agent and 300 parts by weight it is organic Solvent, by its intaglio plate coating the first basilar memebrane (thickness be 75 μm) formed by polyethylene terephthalate one side, Form the first release layer (thickness is 0.7 μm).
Then, relative to the urethane acrylate of 100 parts by weight, curing agent, 0.2 weight of 3 parts by weight are coordinated The acrylic acid series levelling agent of part and the organic solvent of 300 parts by weight, by its intaglio plate coating on above-mentioned first release layer, are formed After prime coat (thickness is 5 μm), ultraviolet curing is used.
On the other hand, the curing agent and 600 of 1 parts by weight is coordinated relative to the polyorganosiloxane release agent of 100 parts by weight in addition The organic solvent of parts by weight, it is coated on using gravure coating process the second substrate formed by polyethylene terephthalate The one side of film (thickness is 100 μm), forms the second release layer (thickness is 0.7 μm).
Relative to the acrylic acid series copolymer for including the hydroxyl as functional group of 100 parts by weight, coordinate 0.2 parts by weight The organic solvent of isocyanates system curing agent and 50 parts by weight, above-mentioned second demoulding is coated on by it using slit die coating method On layer, formed after the adhesive linkage that thickness is 10 μm, it is fitted with above-mentioned prime coat, so as to be made without substrate bonding transfer belt (reference picture 4).
[embodiment 2]
Except after prime coat is formed, the direct slit pattern of above-mentioned adhesive linkage is coated on prime coat, peeled off in laminating Beyond mold release film, no substrate bonding transfer belt (reference picture 5) is manufactured using with the identical method of above-described embodiment 1.
[embodiment 3]
Except the urethane acrylate relative to 100 parts by weight, coordinate the curing agent and 300 weight of 5 parts by weight The organic solvent of part, and using gravure coating process formation prime coat (thickness is 5 μm), beyond the prime coat heat cure, use Method same as Example 1 is implemented.
[comparative example 1]
In the one side formation prime coat of polyethylene terephthalate base material film (thickness is 100 μm) (thickness is 5 μm) Afterwards, another side formation adhesive linkage (thickness is 25 μm).The composition of prime coat and adhesive linkage is same as Example 1.
Then, above-mentioned adhesive linkage is fitted into demoulding film layer (to be stripped film layer to be stripped with the middle stripping with above-described embodiment Film layer identical is constituted) on, the protection film layer formed in the upper surface laminating of prime coat by polyethylene terephthalate is (thick Spend for 60 μm), so that the film of comparative example 1 is made.
[comparative example 2]
Except changing thickness and stacking gradually protection film layer (thickness is 60 μm), prime coat (thickness is 5 μm), base material film layer Beyond (thickness is 50 μm), adhesive linkage (thickness is 25 μm) and demoulding film layer (thickness is 75 μm), with the above-mentioned phase of comparative example 1 Implement together, manufacture the film of comparative example 2.
[experimental example]
The measure of physical property has been carried out to the sample of embodiment and comparative example.
Demoulding peeling force, the bonding force without substrate bonding transfer belt to above-described embodiment 1~3 is determined.In addition, Because comparative example 1~2 is without light stripping mold release film, middle stripping mold release film, therefore only determine bonding force.
Specifically, the sample of the embodiment of manufacture and comparative example is cut into width 25mm × length on operating direction 250mm size.
For embodiment 1~3, using bonding force measuring instrument (CKP-5000), pass through 180 ° of disbonded tests (Peel Test) Mode, is peeled off with 300m/min peeling rate, and measures light stripping demoulding peeling force.Then, using automatic laminating machine utilizing (load is 2kg) fits to the sample for be stripped peel test on the adhesive tapes of TESA 7475, and is preserved at 25 ± 2 DEG C 30 minutes.Using bonding force measuring instrument (CKP-5000), by 180 ° of disbonded test modes, entered with 300m/min peeling rate Row is peeled off, and demoulding peeling force is peeled off in measurement.The sample tested is fitted using automatic laminating machine utilizing (load is 2kg) Preserved 30 minutes onto glass or SUS plates (it is corresponding with adherend), and at 25 ± 2 DEG C.Use bonding force measuring instrument (CKP-5000), by 180 ° of disbonded test modes, peeled off with 300m/min peeling rate, and measure bonding force.
For comparative example 1 and 2, after mold release film is removed, glass is fitted to using automatic laminating machine utilizing (load is 2kg) On glass or SUS plates (it is corresponding with adherend), and preserved 30 minutes at 25 ± 2 DEG C.Use bonding force measuring instrument (CKP- 5000), by 180 ° of disbonded test modes, peeled off with 300m/min peeling rate, and measure bonding force.
On the other hand, for embodiment 1~3 and the sample of comparative example 1~2, total light transmittance and mist degree are determined, also It has rated hot and humid reliability.
Mist degree uses JIS K7136 standards, is measured by NDH2000 equipment.
Total light transmittance uses JIS K7361 standards, is measured by NDH2000 equipment.
The evaluation of hot and humid reliability is carried out in the following manner, i.e. after each sample is fitted on safety glass, 85 DEG C, place 72 hours under the conditions of 85% RH after, 11 lines are marked with 1mm interval anyhow on the surface of test piece with knife, made Into after 100 grid, laminating 3M810D adhesive tapes after take off from when, evaluate prime coat between Nian Jie bed boundary with the presence or absence of disengaging feelings Condition.
Prime coat is evaluated as " very good " with the situation that Nian Jie bed boundary does not depart from completely.Moreover, the bottom of by The situation that the disengaging of a part occurs between enamelled coating and Nian Jie bed boundary is evaluated as " common ".
Table 1 shows peeling force (P1) and middle stripping mold release film phase of the light stripping mold release film relative to prime coat of embodiment For the peeling force (P2) of adhesive linkage.
Table 1
P1(gf/25mm) P2(gf/25mm) P2/P1
Embodiment 1 3.4 12.4 3.6
Embodiment 2 4.3 11.5 2.7
Embodiment 3 5.4 14.5 2.7
Table 2 shows other physical measurement results.
Table 2
*◎:It is very good, △:Commonly
* in upper table, gross thickness refers to thickness+thickness of adhibited layer of prime coat thickness+base material film layer
From above-mentioned table it has been confirmed that embodiments of the invention 1~3 without substrate bonding transfer belt prime coat with it is Nian Jie Do not have base material film between layer, and there is base material film as the comparative example 1~2 of existing anti-splashing film.
The gross thickness sum of the prime coat of comparative example 1~2, basilar memebrane and adhesive linkage close to 130 μm (comparative examples 1) or 80 μm (comparative example 2), and embodiment 1~3 does not have base material film layer in centre and can be by prime coat and the thickness of adhesive linkage Sum is significantly decreased as 15 μm.
That is, compared with existing mode, the concrete example of illustration of the invention without substrate bonding transfer belt can filming, And the thin-walled property of film can be realized.Moreover, embodiment 1~3 shows more than 99% total light transmittance, and mist degree (%) also shows that less than 0.15% very excellent value, whereby it was confirmed that with excellent optical characteristics.
On the other hand, in the concrete example according to illustration of the invention without in substrate bonding transfer belt, with the phase of embodiment 1 Than the embodiment 2 of directly coating adhesive linkage shows excellent in terms of hot and humid reliability especially on prime coat Result.Moreover, in the case of by the embodiment 3 of prime coat heat cure, showing the manufacturer even from embodiment 1 Method also shows that excellent result in terms of hot and humid reliability.Therefore, according to embodiment 2 in terms of hot and humid reliability Manufacture method (reference picture 5) or be preferred by prime coat heat cure, and according to the manufacture method (reference picture of embodiment 2 5) it is and by prime coat heat cure most preferred.

Claims (14)

1. it is a kind of for hectographic printing without substrate bonding transfer belt, it is characterised in that including:
It is light to peel off mold release film,
Positioned at the prime coat of the light one side for peeling off mold release film,
Positioned at the adhesive linkage of the one side of the prime coat, and
Positioned at the middle stripping mold release film of the one side of the adhesive linkage;
The first release layer that the light stripping mold release film connects by the first basilar memebrane and with the prime coat is constituted,
The second release layer that the middle stripping mold release film connects by the second basilar memebrane and with the adhesive linkage is constituted,
Wherein the surface tension of prime coat is less than the surface tension of the first release layer.
2. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that prime coat and light stripping Peeling force from mold release film is P1,
Adhesive linkage is P2 with the middle peeling force for peeling off mold release film,
P2/P1 is 2.0~5.0.
3. as claimed in claim 2 for hectographic printing without substrate bonding transfer belt, it is characterised in that prime coat and light stripping Peeling force P1 from mold release film is 1~5gf/25mm,
Adhesive linkage is 2~25gf/25mm with the middle peeling force P2 for peeling off mold release film.
4. as claimed in claim 3 for hectographic printing without substrate bonding transfer belt, it is characterised in that the bonding of adhesive linkage Power is 1000~3000gf/25mm.
5. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that the first release layer Surface tension is 35~45dyne,
The surface tension of prime coat is 25~35dyne.
6. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that first release layer with The mode for the surface curvature for not producing prime coat because of the surface roughness of the first basilar memebrane is coated on the first basilar memebrane.
7. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that prime coat is in thermosetting Fitted after change with adhesive linkage.
8. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that the prime coat with The thickness sum of adhesive linkage is 10~30 μm.
9. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that described viscous without base material The total light transmittance for connecing transfer belt is more than 99%.
10. as claimed in claim 1 for hectographic printing without substrate bonding transfer belt, it is characterised in that described without base material The mist degree for being bonded transfer belt is less than 0.15%.
11. the manufacture method without substrate bonding transfer belt according to any one of claims 1 to 10 for hectographic printing, its It is characterised by, will gently peels off mold release film, prime coat, adhesive linkage and middle stripping mold release film and be laminated.
12. it is used for the manufacture method without substrate bonding transfer belt of hectographic printing as claimed in claim 11, it is characterised in that The manufacture method comprises the following steps:
The step of one side the first release layer of formation of the first basilar memebrane forms light stripping mold release film;
The step of prime coat being formed on first release layer;
The step of the second release layer is formed on the second basilar memebrane and mold release film is peeled off in being formed;
The step of adhesive linkage being formed on second release layer;And
Light stripping mold release film by the middle stripping mold release film for being formed with the adhesive linkage with being formed with the prime coat is fitted The step of.
13. it is used for the manufacture method without substrate bonding transfer belt of hectographic printing as claimed in claim 11, it is characterised in that The manufacture method comprises the following steps:
The step of one side the first release layer of formation of the first basilar memebrane forms light stripping mold release film;
The step of prime coat being formed on first release layer;
The step of adhesive linkage being formed on the prime coat;
The step of the second release layer is formed on the second basilar memebrane and mold release film is peeled off in being formed;And
The step of light stripping mold release film for being formed with the adhesive linkage and prime coat is fitted with the middle stripping mold release film.
14. it is used for the manufacture method without substrate bonding transfer belt of hectographic printing as claimed in claim 13, it is characterised in that After the heat cure of the paint base composition of prime coat, fitted with adhesive linkage.
CN201510063673.6A 2014-04-07 2015-02-06 For hectographic printing without substrate bonding transfer belt and its manufacture method CN104972779B (en)

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TW201538318A (en) 2015-10-16
JP2015199339A (en) 2015-11-12

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