KR101176423B1 - Color adhesive composition - Google Patents

Abstract

The color pressure-sensitive adhesive composition of the present invention prepares a specific (meth) acrylic copolymer, and contains an (meth) acrylic copolymer, a polyfunctional curing agent, an organic or inorganic pigment, an ultraviolet absorber, and the like, in an optimal content. When the composition is applied as an adhesive film, it is excellent in aging stability, transfer resistance and filling resistance.
In addition, the pressure-sensitive adhesive film to which the pressure-sensitive adhesive composition of the present invention is applied realizes transparency of 60% or more in total light transmittance, and when the tempered glass or transparent plastic base material is adhered to the base material sheet with the adhesive film to which the pressure-sensitive adhesive composition of the present invention is applied, the transparency is ensured. As the original pattern or texture of the sheet can be maintained, and various colors can be realized at the same time, the sheet can be used in a variety of display optical films and semiconductors, and is also useful in the field of home appliances and architectural exterior materials, in which design is emphasized.

Description

Color adhesive composition {COLOR ADHESIVE COMPOSITION}

The present invention relates to a color pressure-sensitive adhesive composition, and more particularly, (meth) acrylic copolymers, polyfunctional curing agents, organic or inorganic pigments, ultraviolet absorbers containing the optimal content, and when applied as an adhesive film, The present invention relates to a color pressure-sensitive adhesive composition having excellent transfer resistance and filling resistance as well as transparency.

Adhesives are widely used in sheets, films, labels, tapes, etc. in all industries such as packaging, optics, construction / civil engineering, and automobiles due to their ease of use. Is being used.

In particular, in recent years, with the improvement of living standards and diversified and individualized aesthetic tastes of consumers, in addition to the essential functions in the production of various products, the visual beauty of the exterior design, color, etc. according to the aesthetic tendency is required at the same time. Therefore, in the case of home appliances or building materials, the outward image of the products becomes a priority of selection.

Recently, in order to meet the demands of consumers, manufacturers of various home appliances such as refrigerators, washing machines, air conditioners, and architectural exterior materials are attaching decopanes expressed in various colors and textures to the outer flat surfaces of products.

In general, most home appliances / architectural exterior materials have a structure in which as many as four or more films are laminated, and in order to achieve such a laminated structure, a method using heat fusion or adhesive between materials is generally applied.

However, if the type of material is different, it is not easy to attach by heat fusion, and if the adhesive is applied, a separate facility is required, and there is a disadvantage that an interlayer peeling may occur when heating, and the manufacturing process becomes complicated. The cost rises.

As an example of the prior art, Korean Patent Laid-Open Publication No. 2009-0062056 includes a three-dimensional plate having a predetermined thickness in which a predetermined color is colored to form irregularities on an upper surface thereof, and a transfer layer on which a pattern is transferred to an upper surface of the three-dimensional plate. It is known to decorate for home appliances having a three-dimensional shape that can be integrally manufactured without being separated by having a surface treatment layer laminated or coated on top of the transfer layer. However, in the manufacturing method, a base material coloring process of kneading a pigment of a predetermined color into a base material of a resin material and a plate of a predetermined thickness by passing the colored base material through a pair of balance rollers heated to a predetermined temperature. Rolling process and three-dimensional plate rolling process for producing a three-dimensional plate having a predetermined shape irregularities on the upper surface by passing the plate through a pair of forming rollers heated to a predetermined temperature and a transfer process and pattern to transfer the pattern on the upper surface of the three-dimensional plate It consists of a complex manufacturing process including a surface treatment step of laminating or coating the upper surface of the three-dimensional plate is transferred.

Korean Patent Laid-Open Publication No. 2008-0090880 discloses a multilayer color adhesive film in which a ceramic coating and an adhesive color ceramic coating layer are formed on polyester and various substrates, but the color adhesive film has a complicated manufacturing process and a substrate is attached to the final product. The scope of application may be limited.

In addition, Japanese Unexamined Patent Publication Nos. 2007-331225 and 1995-331188 disclose a double-sided adhesive tape for fixing mobile parts or automobile parts using a polymer film such as polycarbonate or polyethylene. In the case of double-sided adhesive tape, both sides of the adhesive must be tacked and the manufacturing process and cost are increased, and when applied to adherends such as glass or stainless steel, the dimensional stability problem is caused by the difference in thermal expansion coefficient between substrates. May cause.

Accordingly, the present inventors have made efforts to solve the problems of the prior art, as a result, to prepare a color adhesive composition consisting of a specific (meth) acrylic copolymer, a polyfunctional curing agent, an organic and inorganic pigments, an ultraviolet absorber, and adheres the color adhesive composition When applied as a film, the present invention was completed by confirming that time-lapse stability, transfer resistance, and filling resistance were improved and transparency was implemented while implementing various colors.

An object of the present invention is to contain a (meth) acrylic copolymer, a polyfunctional curing agent, an organic or inorganic pigment, and an ultraviolet absorber in an optimal ratio, so that when applied as an adhesive film, the color stability, transfer resistance and filling resistance while implementing a variety of colors It is to provide a color adhesive composition with improved properties.

In order to achieve the above object, the present invention is a color containing 0.1 to 10 parts by weight of a multifunctional curing agent, 0.01 to 5 parts by weight of an organic or inorganic pigment and 1 to 10 parts by weight of an ultraviolet absorber based on 100 parts by weight of the (meth) acrylic copolymer It provides an adhesive composition.

The (meth) acrylic copolymer is 50 to 80% by weight of the soft alkyl acrylate, 15 to 45% by weight of the hard vinyl monomer, 2.5 to 10% by weight of the vinyl monomer having a carboxyl group and 2.5 to 2.5 of the vinyl monomer having a hydroxyl group. It is preferable that it consists of 10% by weight.

The soft alkyl acrylates are ethyl acrylate, n-propyl-acrylate, n-butyl acrylate, n-pentyl acrylate, n-hexyl acrylate, n-heptyl acrylate, n-octyl acrylate, n- One selected from the group consisting of octyl methacrylate, isooctyl acrylate, n-nonyl acrylate, n-decyl acrylate, dodecyl acrylate, 2-ethylhexyl acrylate and 4-methyl-2-pentyl acrylate The above can be used.

The hard vinyl monomers are methyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl acrylate, butyl methacrylate, isobutyl acrylate, benzyl acrylate, vinyl acetate, styrene And one or more selected from the group consisting of acrylonitrile.

The vinyl monomer having the carboxyl group may be any one or more selected from the group consisting of (meth) acrylic acid, crotonic acid, fumaric acid, maleic acid, itaconic acid, and glutamic acid.

The vinyl monomer having a hydroxyl group includes 2-hydroxy ethyl (meth) acrylate, 2-hydroxy butyl (meth) acrylate, 4-hydroxy ethyl (meth) acrylate and 4-hydroxy butyl (meth) acrylic. Any one or more selected from the group consisting of rates may be used.

The organic and inorganic pigments preferably have a light absorption wavelength range of 380 nm to 780 nm.

The color pressure-sensitive adhesive composition of the present invention is composed of a (meth) acrylic copolymer, a polyfunctional curing agent, an organic or inorganic pigment, and when applied to a pressure-sensitive adhesive composition by applying a specific (meth) acrylic copolymer to a pressure-sensitive adhesive film, transfer resistance And the filling resistance is improved, and a variety of colors are realized by containing a specific amount of pigment.

In addition, when the pressure-sensitive adhesive composition of the present invention is applied as an adhesive film, the total light transmittance is satisfied by 60% or more, so that the transparency is excellent. Particularly, when manufacturing the designed home appliance / architectural exterior material, when the base sheet and the reinforcement glass or transparent plastic substrate whose surface is designed by etching, etc. are adhered to the adhesive film to which the pressure-sensitive adhesive composition of the present invention is applied, the substrate sheet is secured. The original pattern or texture can be maintained, and since the simple lamination process is performed without a separate processing step when the adhesive film is attached, the manufacturing process is simple and a cost reduction effect is realized.

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

The present invention provides a color pressure-sensitive adhesive composition containing 0.1 to 10 parts by weight of a multifunctional curing agent, 0.01 to 5 parts by weight of organic and inorganic pigments and 1 to 10 parts by weight of an ultraviolet absorber based on 100 parts by weight of the (meth) acrylic copolymer.

More specifically, the present invention provides a composition which prepares a specific (meth) acrylic copolymer and contains a polyfunctional curing agent, a pigment, and an ultraviolet absorber in an optimum content, and when applied to an adhesive film, time-lapse stability and transfer resistance And not only can implement the effect of improving the filling resistance, it is possible to implement a variety of colors by containing a pigment.

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

1) (meth) acrylic copolymer

The (meth) acrylic copolymer is 50 to 80% by weight of a soft alkyl acrylate, 15 to 45% by weight of a hard vinyl monomer, 2.5 to 10% by weight of a vinyl monomer having a carboxyl group and 2.5 to 2.5 vinyl monomers having a hydroxyl group. 10% by weight was mixed and polymerized to form a copolymer.

At this time, the soft alkyl acrylate and the hard vinyl-based monomer may be classified based on the glass transition temperature (TG), the soft alkyl acrylate is used a compound having a glass transition temperature of 0 ℃ or less, hard vinyl As a system monomer, the compound whose glass transition temperature exceeds 0 degreeC is used.

When the content of the soft alkyl acrylate is less than 50% by weight, the filling resistance and adhesion properties are lowered, and when the content is more than 80% by weight, the glass transition temperature of the pressure-sensitive adhesive composition is lowered, so that the softness is excessively added to the pressure-sensitive adhesive composition. When it is formed into an adhesive film, aging stability and transfer resistance decrease, which is not preferable.

Preferred examples of the soft alkyl acrylate include ethyl acrylate, n-propyl-acrylate, n-butyl acrylate, n-pentyl acrylate, n-hexyl acrylate, n-heptyl acrylate, n-octyl acrylate , n-octyl methacrylate, isooctyl acrylate, n-nonyl acrylate, n-decyl acrylate, dodecyl acrylate, 2-ethylhexyl acrylate and 4-methyl-2-pentyl acrylate.

The hard vinyl-based monomer is contained in an amount of 15 to 45% by weight, when the content is less than 15% by weight of the total alkyl acrylate content is lowered poor adhesion characteristics.

In this case, the hard vinyl monomer is not particularly limited as long as it is a known alkyl methacrylate having an alkyl group having 4 to 18 carbon atoms, and as a preferred example, methyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacryl Latex, isopropylacrylate, butyl methacrylate, isobutyl acrylate, benzyl acrylate, vinyl acetate, styrene and acrylonitrile.

The vinyl monomer having a carboxyl group may contain 2.5 to 10% by weight, if the content is less than 2.5% by weight can not form a sufficient cross-linked structure can not expect excellent cohesion of the adhesive layer, the content is 10% by weight If exceeded, the pot life becomes short after the addition of the polyfunctional curing agent, which is not preferable.

At this time, a preferable example of the vinyl monomer having the carboxyl group is alkyl (meth) acrylate, and in particular, there are (meth) acrylic acid, crotonic acid, fumaric acid, maleic acid, itaconic acid and glutamic acid. The above can be mixed and used.

The vinyl monomer having a hydroxyl group is 2.5 to 10% by weight, if the content is less than 2.5% by weight can not form a sufficient cross-linking structure can not be expected excellent cohesion, if the content exceeds 10% by weight after the addition of a multifunctional curing agent It is not desirable because pot life is shortened.

At this time, a preferable example of the vinyl monomer which has the said hydroxyl group is (meth) acrylate, Especially 2-hydroxy ethyl (meth) acrylate, 2-hydroxy butyl (meth) acrylate, 4-hydroxy ethyl (meth) ) Acrylate and 4-hydroxy butyl (meth) acrylate.

2) Multifunctional Curing Agent

Since the polyfunctional curing agent applied to the present invention can increase the curing density at the time of reaction as compared to the bifunctional curing agent, the cohesive force of the adhesive layer can be improved when the adhesive composition is applied as an adhesive sheet.

At this time, the polyfunctional curing agent is preferably used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the prepared (meth) acrylic copolymer, and if the content is less than 0.1 part by weight, a sufficient crosslinked structure cannot be formed. An excellent cohesion cannot be expected, and if it exceeds 10 parts by weight, the pot life of the pressure-sensitive adhesive composition is shortened after addition of the curing agent, which is not preferable.

The multifunctional curing agent may be an organic or polyfunctional metal chelate, and examples of the organic curing agent include an epoxy curing agent, an isocyanate curing agent, an imine crosslinking agent, and the like.

In addition, the polyfunctional metal chelate is a structure in which the polyvalent metal ion is covalently or coordinating with an organic compound. As the polyvalent metal ion, Al, Cr, Zr, Co, Cu, Fe, Ni, V, Zn, In, Ca, Mg, Mn, Y, Ce, Sr, Ba, Mo, La, Sn, Ti, and the like. Examples of the organic compound covalently or coordinately bonded include alkyl esters, alcohol compounds, carboxylic acid compounds, and ether compounds. And ketone compounds.

In particular, in the present invention, when the pressure-sensitive adhesive composition is applied as an adhesive sheet, an isocyanate curing agent is preferable in terms of improving the adhesion between the release substrate film and the pressure-sensitive adhesive layer, and examples thereof include 2,4-tolylene diisocyanate and diphenylmethane 4. , 4'-diisocyanate, tetramethylene diisocyanate, dicyclohexyl-methane-4,4'-diisocyanate, hexamethylene diisocyanate, isocyanate trimer and isophorone diisocyanate.

3) Organic and Inorganic Pigments

The organic and inorganic pigments (dyes) may be contained in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the (meth) acrylic copolymer, and if the content is less than 0.01 parts by weight, sufficient color may not be realized. It is difficult to maintain the original pattern or texture of the substrate of the product on which the pressure-sensitive adhesive film is laminated when the transmittance is reduced and applied to the pressure-sensitive adhesive film.

The organic and inorganic pigments have an absorption wavelength range of 380 to 780 nm, and may implement various colors.

Pigment applicable in the present invention is not particularly limited as long as it has the above light absorption wavelength range, carbon black, anthraquinone, quinoline blue, phthalocyanine blue, monoazo, diazo, polyazo, pyrantrone, perylene, quinacry Pig and indigoide pigments are preferred.

4) UV absorbers

The ultraviolet absorber may be contained in an amount of 1 to 10 parts by weight based on 100 parts by weight of the (meth) acrylic copolymer, and may implement a transmittance of 60% or more according to the optimal content. Because it can prevent color discoloration, it can improve the durability of the color adhesive layer when applied to applications exposed to ultraviolet rays.

The ultraviolet absorber applicable in the present invention is not particularly limited, but there are metal ionic compounds, salicylic acid, benzophenone, benzotriazole and the like.

The color pressure-sensitive adhesive composition of the present invention may be formed of an adhesive film, and specifically, by applying a color pressure-sensitive adhesive composition to one surface of the base film, the color pressure-sensitive adhesive composition is formed on the pressure-sensitive adhesive film or release film on which the color pressure-sensitive adhesive layer is formed to form a color pressure-sensitive adhesive layer. After use can be used as an inorganic adhesive film to remove the release film in use.

The thickness of the color adhesive layer may be adjusted as the distance between the comma coater and the surface of the base film or the release film, and may include a gravure coat method, a blade coat method, a wire bar coat method, A coating method such as a reverse coat method, a comma coat method, or the like may be used, and a base film or a release film applicable to the present invention may be a known one.

In this case, the thickness of the color adhesive layer is not particularly limited, but may be limited depending on the type of adherend to which the color adhesive film is applied or the degree of adhesive force required.

In particular, as the color adhesive layer to which the color adhesive composition of the present invention is applied, the higher the transmittance of visible light is better as it is applied to the adherend of which appearance is important, and preferably requires an optical characteristic of 60% or more and haze 5 or less. .

Thus, the color pressure-sensitive adhesive composition of the present invention is excellent in application to the decoration should be secured transparency, in particular in the manufacture of the designed home appliances / architectural exterior materials, the surface sheet and the reinforcement glass or transparent plastic substrate designed by the technique, such as etching When the adhesive is secured, it is possible to maintain the original pattern or texture of the base sheet and at the same time implement a variety of colors.

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

The following examples are merely illustrative of the present invention, but the scope of the present invention is not limited to the following examples.

≪ Example 1 >

One. ( Meta Acrylic Copolymer Preparation

70% by weight of n-butyl acrylate, 20% by weight of methyl acrylate, 5% by weight of acrylic acid, and 5% by weight of 2-hydroxyethyl acrylate were mixed in a 1L reactor equipped with a high speed stirrer, a titrator, a cooling device, and a thermometer. 100 parts by weight of ethyl acetate and 0.05 parts by weight of azobisisonitrile (AIBN) were added to 100 parts by weight of the mixture, followed by stirring with a high speed stirrer at room temperature and refluxing with nitrogen gas for 1 hour and then at 60 ° C. for 12 hours. Polymerization was carried out to prepare a (meth) acrylic copolymer resin.

2. color  Pressure Sensitive Composition

1 part by weight of toluene diisocyanate, 0.1 part by weight of phthalocyanine blue, and 1.5 parts by weight of a ultraviolet absorber (TINUVIN) were added based on 100 parts by weight of the (meth) acrylic copolymer prepared above, and an ethyl acetate / methyl ethyl ketone (volume ratio 50:50) mixture was added. To dilute to a non-volatile content of 20% by weight to prepare a color adhesive composition.

<Example 2>

A color adhesive composition was prepared in the same manner as in Example 1, except that phthalocyanine green paper was applied instead of phthalocyanine blue.

<Example 3>

A color adhesive composition was prepared in the same manner as in Example 1, except that Vermilion Red was used instead of phthalocyanine blue.

<Example 4>

The color adhesive composition prepared in Example 1 was coated on a heavy release film (RPC-101, Toray Saehan) to 25㎛ and dried to form a pressure-sensitive adhesive layer, the light peeling release film (RPS- 101, Toray Saehan Co., Ltd.) to produce an inorganic color adhesive film.

<Example 5>

Except that the color pressure-sensitive adhesive composition prepared in Example 2 was applied, the same procedure as in Example 4 was carried out to prepare an inorganic color pressure-sensitive adhesive film.

<Example 6>

Except that the color pressure-sensitive adhesive composition prepared in Example 3 was applied, the same procedure as in Example 4 was carried out to prepare an inorganic color pressure-sensitive adhesive film.

&Lt; Comparative Example 1 &

Except that 7 parts by weight of phthalocyanine blue was applied, it was carried out in the same manner as in Example 1 to prepare a color pressure-sensitive adhesive composition.

Comparative Example 2

Except that 10 parts by weight of phthalocyanine blue was applied, it was carried out in the same manner as in Example 1 to prepare a color pressure-sensitive adhesive composition.

&Lt; Comparative Example 3 &

In preparing the (meth) acrylate copolymer, a color pressure-sensitive adhesive composition was prepared in the same manner as in Example 1 except that 85% by weight of n-butylacrylate and 5% by weight of methyl acrylate were applied.

&Lt; Comparative Example 4 &

In the preparation of the (meth) acrylate copolymer, except that 79% by weight of n-butyl acrylate, 20% by weight of methyl acrylate, 0.5% by weight of acrylic acid, and 0.5% by weight of 2-hydroxyethyl acrylate were applied. A color adhesive composition was prepared in the same manner as in Example 1.

&Lt; Comparative Example 5 &

A color pressure-sensitive adhesive composition was prepared in the same manner as in Example 1, except that 0.05 part by weight of toluene diisocyanate was applied.

&Lt; Comparative Example 6 >

Except that the color pressure-sensitive adhesive composition prepared in Comparative Example 1 was applied, an inorganic material color pressure-sensitive adhesive film was prepared in the same manner as in Example 4.

&Lt; Comparative Example 7 &

Except that the color pressure-sensitive adhesive composition prepared in Comparative Example 2 was applied, the same procedure as in Example 4 was carried out to prepare an inorganic color pressure-sensitive adhesive film.

&Lt; Comparative Example 8 >

Except that the color pressure-sensitive adhesive composition prepared in Comparative Example 3 was applied, the same procedure as in Example 4 was carried out to prepare an inorganic color pressure-sensitive adhesive film.

&Lt; Comparative Example 9 &

Except that the color pressure-sensitive adhesive composition prepared in Comparative Example 4 was applied, the same procedure as in Example 4 was carried out to prepare an inorganic color pressure-sensitive adhesive film.

&Lt; Comparative Example 10 &

Except that the color pressure-sensitive adhesive composition prepared in Comparative Example 5 was applied, the same procedure as in Example 4 was carried out to prepare an inorganic color pressure-sensitive adhesive film.

<Experimental Example>

The peeling force, glass transition temperature, time stability, transfer resistance, filling resistance and total light transmittance of the inorganic color adhesive films of Examples 3 to 6 and Comparative Examples 6 to 10 were measured and shown in Table 2 below.

One. Peel force  Measure

After removing the light peeling release film of the inorganic color adhesive film is attached to 100㎛ PET film by reciprocating once with a 2kg roll. After the heavy release film is removed, and then attached to the non-alkaline glass plate in the same manner. The glass plate with the pressure-sensitive adhesive film was autoclaved at 50 ° C. and 0.5 MPa for 30 minutes, then left at room temperature for 2 hours. Shear steel under conditions of 180 ^o peel angle and 300 mm / min speed using an Instron measuring instrument. The degree was measured.

2. Glass transition temperature measurement

Approximately 0.05 g of the pressure-sensitive adhesive prepared in Examples 1 to 3 and Comparative Examples 1 to 5 was used, using a differential scanning calorimeter (DSC 200 F3 from Netzsch), at 10 ^o C per minute in the range of -100 ^o C to 30 ^o C. The glass transition temperature was measured while increasing the temperature.

3. Determination of Time and Time Stability

After removing the release film of the inorganic color adhesive film and attaching it to the glass plate, it is left for 6 months at room temperature and the visual change of the adhesive force according to the aging time is measured visually. △ (normal), 거의 (excellent) when there is almost no, ◎ (very good) when not.

4. Transcription resistance  Measure

After removing the release film of the inorganic color adhesive film and attaching it to the glass plate, the adhesive film was peeled off from the glass plate and the degree of transfer of the remaining adhesive was visually measured. ), 거의 (excellent) if almost none, ◎ (very good) if none.

5. Filling resistance  evaluation

After removing the light peeling release film of the inorganic color adhesive film, it was laminated on a tempered glass of 200mm × 200mm size to obtain a semi-finished exterior material.

After removing the heavy release film from the semi-finished packaging material obtained in this way, it was laminated on a pattern-etched stainless and then subjected to autoclave treatment for 1 hour under a 60 ℃ temperature condition, 0.5 MPa pressure condition and then left at room temperature for 2 hours. Thereafter, the etched portion was enlarged under a microscope to determine whether the adhesive composition was filled in the etching pattern.

(Double-circle): A state in which the adhesive composition is not filled in the etching mark at all.

(Circle): The state which hardly filled the adhesive composition in the etching trace (about 5% area)

(Triangle | delta): The state in which the adhesive composition was partially filled (20% area or more) in the etching mark.

X: The adhesive composition (50% area or more) filled in the etching mark

6. Light rays  Transmittance measurement

The total light transmittance of the inorganic color adhesive film was measured using a color difference meter (CA 2000, Nippon Denshoku).

Further, after the tempered glass and the patterned stainless were laminated using an inorganic color adhesive film, the etching parts were visually measured and compared with the color difference values measured.

According to the above experimental results, in Examples 4 to 6, by applying a specific (meth) acrylic copolymer and containing an optimal amount of curing agent and pigment, excellent results in aging stability, transfer resistance, filling resistance and total light transmittance are shown. .

On the other hand, Comparative Examples 6 and 7 containing 5 parts by weight or more of a high content pigment showed a total light transmittance of 57% or less, and it was difficult to visually distinguish the etching portion of the stainless steel.

In addition, in the (meth) acrylic copolymer polymerization step, Comparative Example 8 containing an excessive amount of the soft monomer n-BA was lowered in glass transition temperature, it can be seen that time stability, transfer resistance and filling resistance is not good.

In addition, Comparative Example 10 in which the content of the curing agent is not sufficient, the physical properties of aging stability, transfer resistance, and filling resistance is lowered, and in particular, when the content of the curing agent is lowered, the glass transition temperature is not different from that in Examples, It can be seen that the physical properties drop significantly.

As described above, the color pressure-sensitive adhesive composition of the present invention is composed of a (meth) acrylic copolymer, a polyfunctional curing agent, an organic and an inorganic pigment, and when applying the pressure-sensitive adhesive composition to the pressure-sensitive adhesive film by applying a specific (meth) acrylic copolymer. Time stability, transfer resistance and filling resistance have been improved, and various colors are realized by containing a specific amount of pigment.

In addition, when applying the pressure-sensitive adhesive composition of the present invention as a pressure-sensitive adhesive film to meet the 60% or more of the total light transmittance excellent transparency, it is excellent in the application for decoration, such as furniture, home appliances and building exterior materials that should be transparent.

Particularly, when manufacturing the designed home appliance / architectural exterior material, when the base sheet and the reinforcement glass or transparent plastic substrate whose surface is designed by etching, etc. are adhered to the adhesive film to which the pressure-sensitive adhesive composition of the present invention is applied, the substrate sheet is secured. The original pattern or texture can be maintained, and since the simple lamination process is performed without a separate processing step when the adhesive film is attached, the manufacturing process is simple and cost-saving effect is realized.

Therefore, the color pressure-sensitive adhesive composition of the present invention can be widely used for the use of sheets, films, labels, tapes, etc. in all industries such as packaging, optics, construction / civil engineering, automotive, etc., because of the ease of use as described above, and also display optical Various applications can be made in the film and semiconductor areas.

Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications belong to the appended claims.

Claims (7)

(Meth) consisting of 50 to 80% by weight of soft alkyl acrylate, 15 to 45% by weight of hard vinyl monomer, 2.5 to 10% by weight of vinyl monomer having carboxyl group and 2.5 to 10% by weight of vinyl monomer having hydroxyl group 100 parts by weight of the acrylic copolymer;
0.1 to 10 parts by weight of the multifunctional curing agent;
0.01 to 5 parts by weight of organic or inorganic pigments; And
Contains 1 to 10 parts by weight of the ultraviolet absorbent,
When applied as an adhesive film, the color adhesive composition for adhering decopan of furniture, home appliances and building exterior materials characterized in that the total light transmittance of 60% or more is satisfied based on the thickness of 25㎛. delete The method of claim 1, wherein the soft alkyl acrylate is ethyl acrylate, n-propyl-acrylate, n-butyl acrylate, n-pentyl acrylate, n-hexyl acrylate, n-heptyl acrylate, n- With octyl acrylate, n-octyl methacrylate, isooctyl acrylate, n-nonyl acrylate, n-decyl acrylate, dodecyl acrylate, 2-ethylhexyl acrylate and 4-methyl-2-pentyl acrylate The color pressure-sensitive adhesive composition, characterized in that any one or more selected from the group consisting of. The method of claim 1, wherein the hard vinyl monomer is methyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl acrylate, butyl methacrylate, isobutyl acrylate, benzyl acrylate Color adhesive composition, characterized in that any one or more selected from the group consisting of vinyl acetate, styrene and acrylonitrile. The color pressure-sensitive adhesive composition of claim 1, wherein the vinyl monomer having a carboxyl group is any one or more selected from the group consisting of (meth) acrylic acid, crotonic acid, fumaric acid, maleic acid, itaconic acid, and glutamic acid. . The vinyl monomer having a hydroxyl group according to claim 1, wherein the vinyl monomer having a hydroxyl group is 2-hydroxy ethyl (meth) acrylate, 2-hydroxy butyl (meth) acrylate, 4-hydroxy ethyl (meth) acrylate and 4-hydroxy. The color pressure-sensitive adhesive composition, characterized in that any one or more selected from the group consisting of oxy butyl (meth) acrylate. The color adhesive composition according to claim 1, wherein the light absorption wavelength region of the organic or inorganic pigment is 380 nm to 780 nm.