KR101759167B1

KR101759167B1 - Transferring film for polyethylene resin surface

Info

Publication number: KR101759167B1
Application number: KR1020150143461A
Authority: KR
Inventors: 김효정; 김종회
Original assignee: 김효정; 김종회
Priority date: 2015-10-14
Filing date: 2015-10-14
Publication date: 2017-07-31
Also published as: KR20170043857A

Abstract

The present invention improves the adhesion to the surface of a transfer object by optimizing the components constituting each functional layer in the structure of a transfer sheet formed by stacking various functional layers, thereby improving the adhesion of the transferred object made of curved surfaces, Which is capable of improving physical properties such as abrasion resistance, scratch resistance, weather resistance and heat resistance, in addition to improving the transfer quality to a transfer layer of a polyethylene resin, which comprises an adhesive layer formed on a printing layer, And the adhesive layer is formed by coating a pressure-sensitive adhesive containing dammar gum.

Description

[0001] The present invention relates to a transferring film for a polyethylene resin,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer sheet for transferring a surface of a polyethylene resin, and more particularly, to a transfer sheet for transferring a surface of a polyethylene resin by optimizing components constituting each functional layer, The present invention relates to a transfer sheet for transferring a polyethylene resin onto a surface of a polyethylene resin, which is capable of improving properties such as abrasion resistance, scratch resistance, weather resistance and heat resistance, in addition to improving transfer quality to a surface of a curved surface,

A variety of transfer methods have been developed and used for the purpose of decorating or functionalizing the surface of various products such as polyethylene resin and the like. For example, a screen printing method, a pad printing method and a thermal transfer printing method using a transfer paper are used .

The screen printing method is useful when printing on a surface of a product having a smooth surface such as a synthetic resin plate because the printing equipment is simple and the printing method is simple. However, when the surface to be printed is curved or multi- The precision of the pattern is decreased and it is hardly used.

The pad printing method is a method of printing a three-dimensional pattern on a flexible pad and printing the printed surface with the three-dimensional pattern filled with ink. In the case of a porcelain product, for example, a plate, It is troublesome to print several times according to the color by using a plurality of pads when printing a multicolored pattern, but also, when printing, the printed layer printed before is dried, It takes a long time to print and it is difficult to make the border of the pattern coincide with each other, so that there is a problem that precise printing can not be obtained.

In order to solve the problem of the multicolor pattern printing in the screen printing or the pad printing method described above, a thermal transfer printing method using a transfer paper is mainly used for printing on a synthetic resin product. In the above-described thermal transfer printing method using a transfer sheet, a heat-fusible peeling layer, a printing protective layer as required, a pattern printing layer and a hot-melt adhesive layer are successively laminated on the surface of a transfer material paper made of paper or a synthetic resin film, The transfer paper is brought into close contact with the surface of a transfer object, for example, a synthetic resin product, heated and pressed to transfer the print layer onto a transfer object, and then the transfer paper is separated from the print layer.

In such a transfer printing method, the pattern printed on the print layer of the transfer sheet is directly transferred to the transfer target body, so that a relatively elaborate polychromatic pattern appears on the surface of the transferred body in a simple manner. The transfer sheet and its manufacturing method used in this transfer printing method are disclosed in various documents. The conventional transfer sheet and its manufacturing method are mainly used for preventing the pattern from spreading by improving the composition of the melt release layer and the melt adhesion layer, To prevent it from becoming.

The pattern printed on the transfer sheet is transferred to a transfer object while being closely contacted with the transfer object so as to form a pattern on the transfer object. In this method, most of the transfer ink is printed on the transfer sheet, A method of printing on a transfer object pretreated with a polyester fabric or a polymer-based coating liquid is used. As described above, the transfer paper used in the thermal transfer is usually produced by using the gravure printing method, the silk printing method, and the digital printing printing method (printer, plotter, electrostatic printer, etc.) After the pattern is printed, heat of about 120 to 270 ° C is directly or indirectly applied to produce a transfer paper.

However, since such a transfer method involves a lot of manufacturing steps, it takes a lot of time and effort to manufacture, a large production cost is required, and the cost of the product increases. In addition, when the transfer sheet is attached to a transfer object and printed, the transfer ratio is not so good, the transfer is difficult, transfer quality is poor, the film layer is weak to heat and the shape is deformed during transfer, and the durability is weak, .

Korean Patent Publication No. 88-781 discloses a thermal transfer sheet in which a hot-melt peeling wax layer, a polychromatic print layer, and a hot-melt adhesive layer are laminated on a transfer paper sheet. In this patent document, the heating and fusing wax layer is composed of a low molecular weight polyethylene, an ester wax, a paraffin wax, an ester resin, an ethylene / vinyl acetate copolymer and a hydrogenated petroleum resin. The melting adhesive layer is composed of a polyamide resin, .

U.S. Patent No. 3516842 discloses a thermal transfer paper formed by laminating a release layer, a primer protective layer, a print layer, and an adhesive layer on a transfer paper. According to the above-mentioned patent documents, the transfer sheet is made of kraft paper, the release layer is made of a waxy substance having a melting point of 80 to 120 ° C, and a primer protective layer is formed between the release layer and the print layer, When transferred to a product, the printed layer is protected by a primer protective layer located on the surface.

U.S. Pat. No. 4,555,436 discloses a thermal transfer paper comprising a transfer sheet, a molten glass layer, a barrier layer, a print layer and an adhesive layer. In this patent document, the release layer is composed of a solvent-type composition comprising a film-forming binder composed of a waxy wax, a rosin ester and a hydrocarbon resin, an ethylene-vinyl acetate copolymer and an organic solvent, and the barrier layer is a layer in which the print layer is permeated into the release layer And a polyester and rosin ester based on an aromatic acid are used so as to protect the printed layer after the transfer.

The protective layer and the barrier layer used in the above-mentioned U.S. Patent No. 3,516,842 and U.S. Patent No. 4,555,436 allow printing to be performed well during the manufacture of the transfer sheet and to prevent penetration of the transfer sheet print layer into the release layer and to protect the surface of the print layer And is located on the surface of the print layer after the transfer.

Japanese Patent Publication No. 51-33452 also discloses a transfer paper having a protective layer interposed between a release layer and a print layer. In the above-mentioned document, the protective layer is formed of acrylic resin, AS resin or ABS resin, It is judged that the layer protects the print layer.

The transfer sheets disclosed in the above-mentioned patent documents all have a melt release layer, a print layer, and a melt adhesive layer sequentially laminated on a transfer paper sheet, so that the melt adhesive layer of the transfer sheet is bonded to the print surface at the time of transfer, . Therefore, when the transfer is performed, pressure is applied through the thick transfer sheet, so that there is a problem in that when the printed surface is bent, the printed portion is not accurately printed.

In addition, most of the conventional transfer sheets are not designed to have optimum physical properties depending on the surface properties of the transfer object, and thus the adhesion to the surface, particularly the surface of the curved surface, is lowered. As a result, There was a problem.

The present invention has been devised to solve the problems of the prior art as described above, and it is an object of the present invention to improve the adhesion to the surface of a transfer object by optimizing the components constituting each functional layer in the structure of a transfer sheet formed by stacking several functional layers, It is another object of the present invention to provide a transfer sheet for transferring a surface of a polyethylene resin, which is capable of improving the transfer quality to the surface of a transfer object made of a curved surface and further improving physical properties such as abrasion resistance, scratch resistance, weather resistance and heat resistance.

According to one aspect of the present invention, there is provided a polyethylene resin surface transfer transfer sheet comprising an adhesive layer formed on a printing layer, wherein the adhesive layer is formed by coating a pressure-sensitive adhesive containing dammar gum.

The adhesive layer preferably comprises 50 to 70% by weight of toluene, 5 to 25% by weight of dammar gum, 13 to 30% by weight of polyurethane resin, 2 to 10% by weight of chlorinated polypropylene resin and 0.1 to 5% by weight of polyethylene wax Or the like.

According to one aspect of the present invention, there is provided a method of manufacturing a semiconductor device comprising sequentially a film layer, a release layer, a printing layer, a coating layer and an adhesive layer, wherein the film layer is made of polyethylene terephthalate (PET), polybutylene terephthalate (PBT) (PEN), polypropylene (PP), polyamide, polyvinyl chloride (PVC), polystyrene (PS), polycarbonate (PC), polyethylene (PE), polyacrylonitrile And the release layer is formed by coating a release agent comprising 30 to 79% by weight of an organic solvent, 20 to 40% by weight of a synthetic resin, and 1 to 5% by weight of a polyethylene wax Wherein the coating layer comprises 30 to 45% by weight of toluene, 25 to 35% by weight of methyl ethyl ketone, 15 to 25% by weight of an acrylic resin, 5 to 15% by weight of a chlorinated polypropylene resin, 0.5 By weight to 5% by weight of a polyethylene wax and 0.1 to 5% by weight of a polyethylene wax.

According to the present invention, in the structure of a transfer sheet formed by stacking a plurality of functional layers, it is possible to improve the adhesion to the surface of a transfer object by optimizing the components constituting each functional layer, In addition to improving the quality of transferring, it is also possible to provide a transfer paper for surface transfer of a polyethylene resin which can improve physical properties such as abrasion resistance, scratch resistance, weather resistance and heat resistance, The present invention provides an effect of enabling the production of a polyethylene resin product having excellent printing properties.

Hereinafter, the present invention will be described in detail with reference to specific examples.

The polyethylene resin transfer sheet according to the present invention comprises a pressure-sensitive adhesive layer formed on a printing layer, wherein the pressure-sensitive adhesive layer is formed by coating a pressure-sensitive adhesive containing dammar gum.

Wherein the dry gum (gum dam (m) ar) is a kind of hard resin, shows the LEA (Shorea) of dipterocarpaceae (Dipterocarpaceae) in Southeast Asia, hope ah (Hopea), batika (Vatica) and a bar terrier (Vateria) in the species Lt; RTI ID = 0.0 & It is lighter than copal, harder than oleoresin, mainly produced in Southeast Asia, and commercially important is damar penak from the species Balanocarpus heimii , And damar kuching obtained from the genus. It is mainly used for paper, lacquer, varnish, and paint, and some is used for ink and medicine.

Particularly, in the present invention, the dammar gum is used in combination with a synthetic resin, preferably 50 to 70% by weight of toluene, 5 to 25% by weight of dammar gum, 13 to 30% by weight of polyurethane resin, 10 to 10% by weight of a polyethylene wax, and 0.1 to 5% by weight of a polyethylene wax. When the amount of dammar gum is in the range of 5 to 25% by weight based on the total weight of the pressure sensitive adhesive, It is possible to improve physical properties such as abrasion resistance, scratch resistance, weather resistance and heat resistance.

Hereinafter, the configuration of the present invention will be described in more detail.

The following description will be made with reference to the configuration of a polyethylene resin surface transfer transfer sheet comprising a film layer, a release layer, a print layer, a coating layer and an adhesive layer according to an embodiment of the present invention.

Adhesive layer

In the present invention, the adhesive layer serves to bond the print layer and the surface of the polyethylene resin to enable transfer to the surface of the polyethylene resin. Wherein the adhesive layer comprises an organic solvent comprising toluene; Gums comprising dammar gum; A resin stream including a polyurethane resin and a chlorinated polypropylene resin; And a wax.

The organic solvent includes toluene and other volatile organic solvents such as methyl ethyl ketone, methyl isobutyl ketone, phenyl ketone, xylene, cyclohexane, ethyl acetate, butyl acetate, isopropyl alcohol, . The toluene may be contained in an amount of 80 to 100% by weight based on the total weight of the organic solvent. The toluene solvent is advantageous in that it is highly compatible with other component substrates as an unsaturated hydrocarbon-based organic solvent.

The gypsum serves to improve the adhesive function of the adhesive layer, and in particular, improves the adhesion and adhesion of the printing layer to the curved or curved surface to improve the transfer quality. The gums include dammar gum and may further include gum arabic, carboxymethylcellulose, curdlan, carrageenin, locust bean gum, guar gum, gellan gum, xanthan gum and alginate gum. And 80 to 100% by weight based on the total weight of the Tamar black gums.

The resin stream is characterized by comprising a polyurethane resin and a chlorinated polypropylene resin. The chlorinated polypropylene resin further improves the adhesion between the surface of the polyethylene resin and the print layer, thereby improving not only the flatness but also the transfer quality of the curved surface or the curved surface. The chlorinated polypropylene resin may have a chlorine content of 10 to 35% by weight, more preferably 20 to 30% by weight. Solubility and adhesiveness to an organic solvent can be secured in such a content range. The polyurethane resin and the chlorinated polypropylene resin may be mixed in a weight ratio of 1: 1 to 2: 1. The polyurethane resin may be used in an amount of 70 to 100% by weight based on the total weight of the resin. The resin stream may further include other polymeric resins such as a silicone resin, a phenol resin, a vinyl resin, an alkyd resin, a polyester resin, etc. in addition to the polyurethane resin and the chlorinated polypropylene resin at a level not hindering the adhesive function can do.

As the wax, polyethylene wax, polypropylene wax and paraffin wax can be used, and polyethylene wax is preferably used. Such a wax component enhances the flexibility of the adhesive layer and can control the drying speed of the solvent upon thermal bonding.

The adhesive layer may contain 40 to 70% by weight of organic solvent, 5 to 25% by weight of gum, 15 to 40% by weight of synthetic resin and 0.1 to 5% by weight of wax, more specifically 50 to 70% by weight of toluene 5 to 25% by weight of margarine, 5 to 20% by weight of a polyurethane resin, 10 to 20% by weight of a chlorinated polypropylene resin and 0.1 to 5% by weight of a wax. The printing quality of the transfer paper for planar and curved surfaces can be improved in such a composition range.

Film layer

In the present invention, the film layer serves to support a printing layer and an adhesive layer for transfer to the surface of the polyethylene resin, and can be peeled off after transfer.

The film layer is preferably sheet-shaped, and various resin films can be used. For example, it is possible to use a polymer such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polypropylene (PP), polyamide, polyvinyl chloride (PVC), polystyrene (PET), polyethylene (PE), polyacrylonitrile (PAN), and a resin selected from the group consisting of a mixture of two or more thereof. Preferably, the film is made of polyethylene terephthalate (PET) It is to be understood that the invention is not intended to be limited thereto.

The thickness of the film layer may be 10 to 100 mu m, preferably 30 to 50 mu m. It is possible to secure an appropriate supporting function and peelability in the above-mentioned thickness range.

Heterogeneous layer

In the present invention, the release layer is laminated on the film layer and serves to facilitate peeling between the surface of the polyethylene resin and the film layer after transfer of the printing layer to the surface of the polyethylene resin. The release layer may include an organic solvent, a resin stream, and a wax. The release layer may preferably include an organic solvent containing a toluene and a ketone compound, a vinyl resin, and a synthetic resin including an acrylic resin and a wax.

Examples of the organic solvent include toluene, methyl ethyl ketone, methyl isobutyl ketone, phenyl ketone, xylene, cyclohexane, ethyl acetate, butyl acetate, isopropyl alcohol and the like, A ketone compound, more preferably a mixture of toluene and methyl ethyl ketone.

As the synthetic resin, a polymer resin such as a vinyl resin, an acrylic resin, a phenol resin, a polyester, and a polyvinyl chloride may be used, and a mixture of a vinyl resin and an acrylic resin may be more preferably used.

As the wax, polyethylene wax, polypropylene wax and paraffin wax can be used.

The release agent layer may contain 30 to 79% by weight of the organic solvent, 20 to 40% by weight of the resin, and 1 to 5% by weight of the wax. Further, the thickness of the release layer may be 0.5 to 10 탆, preferably 1 to 5 탆. It is possible to easily peel off the film layer without damaging the printing layer in such a content range and thickness range.

Printing layer

In the present invention, the print layer is stacked on the release layer and includes a predetermined pattern to be transferred to the surface of the polyethylene resin.

The print layer may include a coloring agent, a resin, and an organic solvent for forming a predetermined pattern.

As the colorant, a coloring material capable of forming hue and shape, for example, a pigment or a dye, may be used, and a pigment may be preferably used. The pigment is not particularly limited as long as it is a pigment that can be used in transferring, and inorganic pigments and organic pigments can be used singly or in combination. In addition, it may contain a nano-particle-modified pigment in order to enhance sharpness during transfer of the print layer. At this time, the average particle size of the pigment in the form of nanoparticles may be 10 to 100 nm, preferably 20 to 50 nm.

The resin is not particularly limited as long as it can maintain a predetermined pattern shape while appropriately dispersing a coloring agent. The resin is preferably a resin composition containing various polymer resins such as an acrylic resin, a vinyl resin, a urethane resin, a silicone resin, , A polyester resin, or the like can be used.

The organic solvent is not particularly limited as long as it is a volatile organic solvent. For example, toluene, methyl ethyl ketone, xylene, cyclohexane, ethyl acetate, etc. may be used singly or two or more of them may be mixed.

In addition to the above components, a dispersant, a lubricant, and the like may be further added when mixing the colorant, the resin, and the solvent, and may include, for example, wax, acrylic resin, and urethane resin.

The printing layer may contain 30 to 60 wt% of organic solvent, 5 to 40 wt% of colorant, and 10 to 40 wt% of resin. Further, the thickness of the print layer may be 0.2 to 50 탆, preferably 1 to 10 탆. A clear transfer of the print layer is possible in such a thickness range.

Coating layer

In the present invention, the coating layer is laminated on the printing layer to improve the adhesion between the printing layer and the polyethylene resin surface during transfer to the surface of the polyethylene resin, and to improve the abrasion resistance, scratch resistance, weather resistance and flex resistance of the transferred printing pattern do. The coating layer is characterized by containing an organic solvent including toluene and a ketone compound, an acrylic resin, and a resin including a chlorinated polypropylene resin, silica powder and wax.

The organic solvent includes toluene and a ketone compound, and may include other volatile organic solvents. As the ketone compound, methyl ethyl ketone, methyl isobutyl ketone, phenyl ketone and the like can be used, and methyl ethyl ketone is preferable. Toluene and ketone compounds may be mixed in a weight ratio of 1: 2 to 2: 1. In addition, the toluene and ketone compounds may be contained in an amount of 80 to 100% by weight based on the total weight% of the organic solvent. When the organic solvent is used in such a composition, it is highly compatible with resins and silica powders to improve dispersibility and solubility, and can provide an appropriate drying rate.

Wherein the resin stream comprises an acrylic resin and a chlorinated polypropylene resin. The chlorinated polypropylene resin further improves the adhesion between the surface of the polyethylene resin and the print layer to improve the bonding force and adhesion between them, thereby improving the transfer quality, and in particular, improving the transfer quality to the curved surface. The chlorinated polypropylene resin may have a chlorine content of 10 to 35% by weight, more preferably 20 to 30% by weight. Solubility and adhesion to organic solvents can be ensured within the range of these contents. The acrylic resin and the chlorinated polypropylene resin may be mixed in a weight ratio of 1: 1 to 3: 1. The acrylic resin and the chlorinated polypropylene resin may be used in an amount of 70 to 100% by weight based on the total weight of the resins. The resin stream may be a polymer resin other than the acrylic resin and the chlorinated polypropylene resin such as a urethane resin, a silicone resin, a phenol resin, a vinyl resin, an alkyd resin , A polyester resin, and the like.

The silica powder enhances the heat resistance of the transfer paper in the subsequent thermal transfer process to enable clear printing on the surface of the polyethylene resin without damaging the film layer or the print layer and can enhance the environmental stress, especially the weather resistance to the ultraviolet rays . The average particle size of the silica powder may be nanosized silica of 50 to 100 nm, preferably 200 to 500 nm.

Examples of the wax include polyethylene wax, polypropylene wax and paraffin wax, and preferably polyethylene wax. These silica powders and wax components serve to increase resistance to abrasion resistance and scratch resistance of the transfer material by external force.

The coating layer may contain 30 to 80% by weight of organic solvent, 10 to 40% by weight of synthetic resin, 0.5 to 5% by weight of silica powder and 5 to 5% by weight of wax, more specifically 30 to 45% by weight of toluene, 25 to 35% by weight of methyl ethyl ketone, 15 to 25% by weight of acrylic resin, 5 to 15% by weight of chlorinated polypropylene resin, 0.5 to 5% by weight of silica powder and 5 to 5% by weight of wax. In this composition range, the print quality, abrasion resistance, scratch resistance, weather resistance, and flex resistance of the transfer paper can be improved.

The structure of the polyethylene resin surface transfer transfer paper described above has a structure in which a film layer, a release layer, a print layer, a coating layer and an adhesive layer are sequentially laminated. It is preferable that each layer is formed by coating the composition in the form of a solution which constitutes each layer sequentially so that each layer can be formed in complete contact and then dried.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be construed as limiting the scope of the invention.

Example 1 to 3, Comparative Example 1 to 3: Polyethylene resin Front surface use Transfer Produce

The transfer sheets of Examples 1 to 3 were prepared so that the respective constituents of the transfer sheet for transferring the surface of the polyethylene resin were included in the composition range of the present invention and the transfer sheets of Comparative Examples 1 to 3 were prepared Respectively. A concrete production method is as follows.

Example One

(1) Film layer

A biaxially stretched polyester film was prepared as a film layer.

(2)

33% by weight of toluene, 32% by weight of methyl ethyl ketone, 3% by weight of vinyl resin, 30% by weight of acrylic resin and 2% by weight of polyethylene wax were charged into an aluminum container and dissolved in an agitation type pulverizer for 3 hours, Coated on the top of the film layer to a thickness of 1 mu m, and then dried for 5 minutes to form a release layer.

(3) Printed layer

50% by weight of a toluene solvent, 30% by weight of a polyurethane resin and 20% by weight of a pigment were mixed to prepare a printed layer having a predetermined pattern, and then laminated on the release layer.

(4) Coating layer

40% by weight of toluene, 27% by weight of methyl ethyl ketone, 20% by weight of acrylic resin, 10% by weight of chlorinated polypropylene resin and 2% by weight of silica powder were added to an aluminum container and mixed and pulverized for about 3 hours. %, And the mixture was mixed and pulverized for about 30 minutes to dissolve each component. The dissolved composition was applied to the top of the printing layer to have a thickness of 2 탆, and then dried for 5 minutes to form a coating layer.

(5) Adhesive layer

59% by weight of toluene, 10% by weight of darmar gum, 15% by weight of polyurethane resin and 15% by weight of chlorinated polypropylene resin were added to an aluminum container and mixed and pulverized for about 3 hours to dissolve. Then, 1 wt. % Was added and mixed for 30 minutes to prepare a pressure-sensitive adhesive composition. The prepared composition was coated on the coating layer to a thickness of 2 mu m and then dried for 5 minutes to form an adhesive layer.

A polyethylene resin surface transfer transfer paper in which a film layer, a release layer, a print layer, a coating layer and an adhesive layer were sequentially laminated was prepared through the above process.

Example 2 to 3 and Comparative Example 1 to 3

A transfer paper was prepared in the same manner as in Example 1 except that the composition constituting the coating layer and the adhesive layer had the composition shown in Table 1 below.

division Example Comparative Example One 2 3 One 2 3 Coating layer solvent toluene 40 45 41 40 37 40 Methyl ethyl ketone 27 22 26 27 30 27 Suzy Acrylic resin 20 17 22 20 30 25 Chlorinated polypropylene resin 10 13 8 12 - 5 Silica powder 2 3 2 - 2 2 Wax Polyethylene wax One One One One One One Adhesive layer solvent toluene 59 59 60 59 59.5 59 sword Damar Sword 10 7 10 10 8 - Xanthan gum - 3 - - 2 10 Suzy Polyurethane resin 15 18 16 20 25 25 Chlorinated polypropylene resin 15 12 14 10 5 5 Wax Polyethylene wax One One One One 0.5 One * The units of each numerical value are "wt% ", and each of the coating layer and the adhesive layer is composed so that the total sum is 100% by weight

Test Example : Transfer Transcription quality and physical property measurement

Transfer quality and physical properties of the transfer paper obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were measured.

First, each of the transfer sheets (Examples 1 to 3 and Comparative Examples 1 to 3) was brought into close contact with a flat polyethylene resin molded article and a curved (cylindrical) polyethylene resin molded article, and then transferred under hot air at 180 ° C and pressure gauge of 5 to 7K . Then, the transfer quality, heat resistance, abrasion resistance, scratch resistance and weather resistance of the surface of the polyethylene resin molded article were measured, and the results are shown in Table 2 below.

The measurement criteria for each property are as follows:

* Transcription quality: Transcription quality (presence of peeled parts, occurrence of cracks, clarity of the transferred print layer and surface roughness etc.) for planar and curved surface (cylindrical shape) were confirmed.

* Heat resistance: After the thermal transfer, the clarity of the printed layer and the damage level of the film layer were checked.

* Abrasion resistance: The transfer paper was cut into a 1/2 inch wide tape, and the film was rubbed with a TABER type abrasion tester under a temperature of 20 ° C and a relative humidity of 60% Respectively.

* Scratch resistance: Measured with a pencil hardness meter to confirm scratches on the surface. H is superior in scratch resistance to B, and the larger the number before H, the better the scratch resistance.

* Weathering resistance: ATLAS or UVCON was used to irradiate for 72 hours with ultraviolet light, and discoloration was confirmed.

division Example Comparative Example One 2 3 One 2 3 Transcription quality (flat) ◎ ◎ ◎ ○ △ △ Warrior quality (curved surface) ◎ ◎ ◎ △ × × Heat resistance ◎ ◎ ◎ × △ △ Abrasion resistance ◎ ◎ ◎ ○ △ △ Scratch resistance ◎ ◎ ◎ △ △ △ Weatherability ◎ ◎ ◎ ○ △ △ * Legend; ?: Excellent,?: Good,?: Fair, X Bad

As shown in Table 2, the transfer sheets of Examples 1 to 3 contained in the composition range of the present invention had a transfer quality, heat resistance, abrasion resistance, scratch resistance and transparency to planar and curved surfaces as compared with the transfer sheets of Comparative Examples 1 to 3 And weatherability.

While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

Wherein the coating layer comprises from 30 to 45% by weight of toluene, from 25 to 35% by weight of methyl ethyl ketone, from 15 to 25% by weight of acrylic resin, from 0.1 to 10% by weight of chlorinated poly Wherein the pressure-sensitive adhesive layer is formed by coating a coating agent comprising 5 to 15% by weight of propylene resin, 0.5 to 5% by weight of silica powder, and 0.1 to 5% by weight of polyethylene wax and the adhesive layer comprises 50 to 70% by weight of toluene, Wherein the polyurethane resin is formed by coating a pressure sensitive adhesive comprising a polyurethane resin, a polyurethane resin, a polyurethane resin, a chlorinated polypropylene resin, and a polyethylene wax in an amount of 0.1 to 5% by weight.

delete

The method according to claim 1,
Wherein the film layer is made of a material selected from the group consisting of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polypropylene (PP), polyamide, polyvinyl chloride (PVC), polystyrene Wherein the release layer comprises a base material composed of a resin selected from the group consisting of polypropylene (PC), polyethylene (PE), polyacrylonitrile (PAN) and a mixture of two or more thereof, To 40% by weight of a polyethylene wax and 1 to 5% by weight of a polyethylene wax.