KR20110006989U - Wallpaper and prepartion method thereof - Google Patents

Abstract

The present invention is an olefin resin layer; And provided on the olefin resin layer, provides a wallpaper having a rotary screen three-dimensional printing layer containing an acrylic resin. The wallpaper of the present invention is rich in volume, has an elegant appearance effect, and is excellent in breathability, workability and workability.

Description

Wallpaper and its manufacturing method {Wallpaper and prepartion method

The present invention is an olefin resin layer; And it is formed on the said olefin resin layer, It is related with the wallpaper which has a rotary screen stereoscopic crushing layer containing an acrylic resin, and its manufacturing method.

Decorative products such as interior wallpaper are commonly used to protect adherends such as walls and to impart a decorative effect.

Such products are mainly manufactured by printing various patterns on various substrates such as gravure printing or flexographic printing on a substrate such as a synthetic resin film or paper.

However, the pattern embodied on the decorative product in the above manner is mostly implemented in a flat shape, and does not meet the needs of consumers who want a more luxurious and colorful effect. Accordingly, in recent years, when manufacturing interior wallpaper that can be used in homes or offices, various attempts have been made, such as changing a printing method to form a three-dimensional pattern or forming a foam pattern layer using a foaming agent. However, all of the techniques known to date have a problem in that the effect of imparting a three-dimensional effect is insignificant or unnatural, so that the decorative effect is rather deteriorated. In addition, in some cases, more than a certain level of three-dimensional compositional effect can be obtained, the manufacturing process is very complicated, the production cost is increased, the price of the product is too expensive.

In addition, recent wallpaper requires not only basic properties such as water resistance, warmth, sound absorption and workability, but also properties such as breathability, beauty, deodorization or temperature control.

The object of the present invention is to provide a rotary screen three-dimensional printing layer containing an acrylic resin on the olefin resin layer, to provide a wallpaper rich in volume, high-quality appearance effect, excellent breathability, workability and workability It is done.

The present invention is a means for solving the above problems, an olefin resin layer; And

Provided is a wallpaper having a rotary screen three-dimensional printing layer formed on the olefin resin layer and containing an acrylic resin.

In the present invention, a rotary screen stereoscopic printed layer is formed using an acrylic sol (Sol) containing an acrylic resin on an olefin resin layer having excellent breathability. Accordingly, in the present invention, it is possible to provide a wallpaper having a high volume and a luxurious appearance effect while having excellent breathability, workability and workability.

1 shows a wallpaper on which a rotary screen three-dimensional printing layer of a protruding pattern is formed on an olefinic resin layer according to the present invention.
2 shows a wallpaper in which the olefinic resin layer includes a substrate and an olefinic coating layer.
3 shows a wallpaper in which a printed layer is further formed.

The present invention is an olefin resin layer; And

It is related with the wallpaper formed on the said olefin resin layer, and has a rotary screen three-dimensional printing layer containing an acrylic resin.

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

The wallpaper 100 according to the present invention includes an olefinic resin layer 110 and a rotary screen stereoscopic printed layer 120 formed on the olefinic resin layer 110 as shown in FIG. 1.

The term "rotary screen three-dimensional printing layer" used in the present invention means a three-dimensional protrusion pattern formed by a rotary screen printing method.

In the present invention, the olefin resin layer 110 is, as shown in Figure 2, the substrate 130; And

It may include an olefin-based coating layer 140 formed on the base 130.

The substrate of the present invention is used to provide the strength of the wallpaper. The kind of the base material is not particularly limited, and for example, pulp, woven fabric, nonwoven fabric or paper can be used. In addition, as the paper constituting the substrate, for example, a basis weight of 20 to 100 g / m ² and a white or colored paper can be used by laminating one or two or more sheets.

The olefinic coating layer of the present invention may be formed on the substrate and may be a molded product of the resin composition including the olefinic resin.

The type of the olefin resin is not particularly limited as long as it is excellent in workability, moldability, heat resistance, and the like, and may include, for example, one or more selected from the group consisting of polyethylene, polypropylene, and polyisobutylene.

The resin composition of the present invention may further include an inorganic filler.

The inorganic filler is used to impart breathability to the olefinic coating layer. By adding the inorganic filler, pores are formed together when the olefinic coating layer is formed, and the pores may serve as a movement passage of air. Accordingly, in the wallpaper of the present invention, for example, moist air or the like can also move through the voids, so that moisture on the wall surface is discharged outwards, thereby preventing the occurrence of mold and the like.

The type of inorganic filler that can be used in the present invention is not particularly limited, and for example, at least one selected from the group consisting of calcium carbonate, magnesium carbonate, silica, kaolin, titanium oxide, barium sulfate, aluminum hydroxide and talc may be used. have.

In the present invention, the inorganic filler may have an average diameter of 1 μm to 50 μm. If the diameter of the inorganic filler is less than 1 μm, the air permeability of the olefinic coating layer may be lowered. If the diameter of the inorganic filler exceeds 50 μm, the surface of the olefinic coating layer may be roughened or the strength may be weakened.

The resin composition of the present invention may include the inorganic filler in an amount of 1 part by weight to 100 parts by weight with respect to 100 parts by weight of the olefin resin. If the ratio of the inorganic filler is less than 1 part by weight, the air permeability and reinforcement of the olefinic coating layer may be insignificant. If it exceeds 100 parts by weight, the tensile strength and the tear strength may deteriorate or surface properties may deteriorate.

In the present invention, the resin composition constituting the olefin-based coating layer may further include a flame retardant. The flame retardant is used to block ignition by volatile organic compounds (VOC) generated during processing and molding, and to impart flame retardancy to an olefin-based coating layer.

The kind of the flame retardant is not particularly limited, and for example, one or more selected from the group consisting of antimony oxide, aluminum hydroxide, magnesium hydroxide, and the like may be used.

The resin composition may include the flame retardant in an amount of 1 part by weight to 20 parts by weight based on 100 parts by weight of the olefin resin. If the content of the flame retardant is less than 1 part by weight, the flame retardancy may be insignificant. If the content of the flame retardant is more than 10 parts by weight, the workability such as the resin melting temperature is lowered may be lowered.

The olefin coating layer of the present invention may further include an antioxidant, a heat stabilizer, a weather stabilizer, an antistatic agent, a pigment, a foaming agent, and the like, in addition to the above components.

In the present invention, the method for producing the olefinic coating layer as described above is not particularly limited, and may be formed by, for example, a casting, extrusion or pressing method using the resin composition described above.

In the present invention, the thickness of the olefin-based coating layer is not particularly limited, and may be, for example, 0.01 mm to 0.1 mm. If the thickness of the olefin coating layer is less than 0.01 mm, the surface properties may be weak. If the thickness of the olefin coating layer is more than 0.1 mm, the workability may be reduced.

In the present invention, the rotary screen three-dimensional printing layer is formed on the olefin resin layer, and serves to form a three-dimensional pattern on the wallpaper.

The thickness of the rotary screen stereoscopic printed layer may be appropriately controlled in consideration of the desired decorative effect. The thickness of the rotary screen stereoscopic printed layer may be, for example, 0.05 mm to 5 mm, preferably 0.1 mm to 0.5 mm. When the thickness of the rotary screen stereoscopic printed layer is less than 0.05 mm, the stereoscopic effect may be insignificant.

In the present invention, the rotary screen stereoscopic printing layer as described above may be formed by an ink composition containing an acrylic resin, and specifically, may be formed by using an oil-based acrylic sol.

The oil-based acrylic sol has the advantage of excellent field workability, such as roll clogging compared to the aqueous or emulsion type acrylic sol conventionally used.

The kind of the acrylic resin that can be used in the present invention is not particularly limited. In the present invention, for example, a polyalkyl (meth) acrylate such as polymethyl methacrylate (PMMA) may be used as the acrylic resin.

In the present invention, the acrylic sol may further include an inorganic filler.

The kind of the inorganic filler is not particularly limited, and for example, calcium carbonate, amorphous silica, talc, zeolite, magnesium carbonate, calcium sulfate, calcium phosphate, magnesium phosphate, aluminum oxide, titanium dioxide, kaolin, ATH (Alumina trihydrate), One or more selected from the group consisting of talc and titanium dioxide can be used, with preference being given to using calcium carbonate.

The content of the inorganic filler may be included in an amount of 10 parts by weight to 100 parts by weight with respect to 100 parts by weight of the acrylic resin. If the content of the inorganic filler is less than 10 parts by weight, the printing effect is insignificant, there is a fear that the manufacturing cost increases, and if it exceeds 100 parts by weight, the workability and product surface properties may be lowered.

In the present invention, the acrylic sol may further include a plasticizer.

The kind of the plasticizer is not particularly limited, and for example, phthalate-based compounds, citric acid-based compounds (e.g. citric acid or citric acid ester), fatty acid esters, polyalkylene glycols (ex. Polyethylene) Glycols or polypropylene glycols, etc.), glycerol esters, vegetable oils, modified vegetable oils, allyl phosphate esters, dialkyl ether diesters, tricarboxylic acid esters, epoxidized oils, epoxidized esters, polyesters, polyglycol di One or more selected from the group consisting of esters, allyl ether diesters, aliphatic diesters, alkylether monoesters, dicarboxylic acid esters, and the like can be used.

The amount of the plasticizer may be included in an amount of 30 parts by weight to 100 parts by weight based on 100 parts by weight of the acrylic resin. If the content of the plasticizer is out of the above range, it is difficult to control the flexibility (viscosity) of the acrylic sol, and there is a fear that the workability is lowered.

Acrylic sol of the present invention may further comprise a diluent. The type of diluent that can be used in the present invention is not particularly limited, and examples thereof include organic solvents such as methyl isobutyl ketone (MIBK) or methyl ethyl ketone; Or methyl (meth) acrylate, ethyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, oxyl (meth) acrylate, dodecyl (meth) acrylate, octadecyl (meth) acrylate, methylcyclo Hexyl (meth) acrylate, isobonyl (meth) acrylate, phenyl (meth) acrylate, benzyl (meth) acrylate, chlorophenyl (meth) acrylate, methoxyphenyl (meth) acrylate, bromophenyl ( Meth) acrylate, ethylene glycol di (meth) acrylate, 1,2-propylene glycol (meth) acrylate, 1,3-butanediol di (meth) acrylate, 1,3-propylene glycol (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,5-pentanediol di (meth) acrylate, neopentylglycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di ( Meta) acrylate, deep Lohylene glycol di (meth) acrylate, diallyl terephthalate, diallyl phthalate, diallyl carbonate, trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) Acrylate, dipentaerythritol hexa (meth) acrylate, ethoxyethoxyethyl acrylate, epoxy acrylate of glycidyl methacrylate, 1,6-hexanediol di (meth) acrylate, glycerin tri (meth) Monomer components such as acrylate, methylpropanediol di (meth) acrylate, polyethylene glycol di (meth) acrylate, styrene, halogenated styrene, vinyltoluene, divinylbenzene, alphamethylstyrene and alpha methylstyrene dimer can be used. One or more combinations of the above can be used.

In the present invention, the content of the diluent may be included in an amount of 1 to 20 parts by weight based on 100 parts by weight of the acrylic resin. If the content of the diluent is out of the above range, it may be difficult to control the viscosity of the acrylic sol, or it may be difficult to implement a vivid pattern on the substrate, such as wallpaper.

The acrylic sol may further include a blowing agent, a stabilizer and a pigment.

The type of the blowing agent, stabilizer and pigment is not particularly limited, and may be used by employing general ingredients used in the art.

The rotary screen three-dimensional printing layer in the present invention can be formed by a rotary screen method using the aforementioned acrylic sol. The rotary screen printing method is a printing method in which a raw material is injected into a cylindrical screen net and the printing surface is coated by centrifugal force by rotation, and has a merit of thick film printing over other methods such as gravure printing or flexographic printing. .

Specific examples of such a rotary screen printing method include a lacquer method, a galvano method etching method and a mesh roll method. In the present invention, all of the above printing methods can be applied, but it is preferable to use the galvano method in that the thickness of the screen net can be made thick, which is advantageous in forming a thick projecting pattern.

The wallpaper of the present invention may further include a printed layer 150 formed on the substrate 130 and the olefinic coating layer 140 as shown in FIG. The printed layer 150 may be formed on the substrate 130 as shown in Figure 3 (a), may be formed on the olefin-based coating layer 140 as shown in Figure 3 (b), As shown in FIG. 3C, the substrate 130 may be formed on the substrate 130 and the olefin-based coating layer 140.

The printed layer may be provided with a pattern and letters of various colors on the base or the olefin-based coating layer. In the present invention, the printing may be printed by a planar printing method, and preferably, may be printed by a mesh roll type gravure printing method.

The wallpaper of the present invention may further include a second substrate (not shown) formed under the substrate. The second substrate may be laminated by an adhesive under the above-described substrate.

The kind of the second substrate is not particularly limited, and for example, the same kind as the above-described substrate can be used.

The adhesive may be a urethane-based, acrylic or urethane-acrylic adhesive, and may be used that contains an inorganic filler in the adhesive for imparting breathability.

The inorganic filler contained in the adhesive may use the same inorganic filler contained in the olefin-based coating layer. The inorganic filler may be included in an amount of 1 part by weight to 50 parts by weight based on 100 parts by weight of the urethane or acrylic resin included in the adhesive.

In the wallpaper according to the present invention, in order to improve air permeability, fine through-hole pinholes may be formed. As such, by forming a pinhole in the wallpaper, breathability may be further secured by movement of dry air and wet air through the pinhole.

In the present invention, the pinhole has a hole diameter of 0.01 mm to 1 mm, preferably in the range of 100 to 1,000,000 pieces per 1 m ² .

Method for producing the wallpaper of the present invention is not particularly limited, for example, the first step of forming an olefin-based coating layer on top of the substrate; And

It can be prepared by a method comprising a second step of forming a rotary screen three-dimensional printing layer on top of the olefin-based coating layer formed through the first step.

The first step is to form an olefin-based coating layer on the upper portion of the substrate to form a resin composition comprising an olefinic resin and an inorganic filler on the upper portion of the substrate. As the olefin resin and the inorganic filler, the above-described olefin resin and the inorganic filler may be used. The resin composition may further include a flame retardant.

The olefin-based coating layer may be formed by a conventional lamination method such as coating and drying the resin composition on the upper surface of the substrate, or by forming a die by a flat die or by laminating.

The second step is to form a rotary screen stereoscopic printed layer on top of the olefinic coating layer. In the second step, an acrylic sol including an acrylic resin, an inorganic filler, a plasticizer, and the like is coated on the olefinic coating layer to form a rotary screen stereoscopic printed layer.

Here, the acrylic resin, the inorganic filler, and the plasticizer included in the acrylic sol may use the acrylic resin, the inorganic filler, and the plasticizer described above. The ink composition may further comprise a blowing agent, a stabilizer, a pigment and a diluent.

Formation of the rotary screen three-dimensional printing layer of the present invention can be formed by the rotary screen printing method of the acrylic sol on the olefin coating layer.

The method of performing such rotary screen printing is not particularly limited, and an example thereof is as follows. First, a screen net with a knife or the like mounted horizontally is prepared, and an acrylic sol is introduced into the screen net. Subsequently, while the centrifugal force is generated by rotating the screen net, printing may be performed on the adherend by pushing the acrylic sol to the outside of the screen net with a knife mounted therein. The average person skilled in the art can freely adjust the thickness and shape of the desired protruding pattern in the above process.

After forming the above-described rotary screen printing three-dimensional layer in the present invention, it may further comprise a step of gelling (gelling) the printed protruding pattern layer. In this case, the gelation process is a process of solidifying an acrylic sol having a protruding pattern, and may be performed by applying heat to a raw material through a means such as a hot air oven. That is, when heat is applied to an acrylic sol having a protruding pattern, liquid raw materials such as a plasticizer start to penetrate into the resin component, and when the appropriate temperature is reached, the liquid raw materials completely penetrate and solidify. In the present invention, the gelation process as described above is preferably performed for 30 to 80 minutes at a temperature of 150 ℃ to 220 ℃. However, in the present invention, appropriate gelling conditions can be selected according to the state of the formed pattern layer, which is not particularly limited.

The present invention may further comprise the step of forming a printed layer on top of the substrate and / or olefinic coating layer.

The printed layer may be printed by a plane printing method, preferably a mesh roll type gravure printing method.

The present invention may also further comprise forming a second substrate at the bottom of the substrate. The type of the second substrate may be the one described above, and the second substrate is attached to the lower portion of the substrate by an adhesive.

Example

Hereinafter, the present invention will be described in more detail through examples according to the present invention, but the scope of the present invention is not limited to the following examples.

Example  One

After mixing 1 kg of polyethylene, 50 g of aluminum hydroxide, and 250 g of talc having a particle size distribution of 1 µm to 50 µm, a resin composition was prepared, and then the resin composition was applied and dried on a paper substrate with a T-die to form an olefinic coating layer. It was. Subsequently, a printed layer was formed on the olefinic coating layer through mesh roll type gravure printing. Subsequently, 100 parts by weight of an acrylic resin, 50 parts by weight of a phthalate plasticizer, 10 parts by weight of titanium dioxide, 50 parts by weight of calcium carbonate (CaCO ₃ ), 5 parts by weight of azodi carbonamide as a blowing agent, and a stabilizer A wallpaper was prepared by forming a rotary screen three-dimensional printing layer by applying a rotary screen roll using an acrylic sol prepared by mixing 1 part by weight of sodium and 5 parts by weight of methyl isobutyl ketone as a diluent.

100: wallpaper 110: olefin resin layer
120: rotary screen stereoscopic printed layer 130: substrate
140: olefinic coating layer 150: printing layer

Claims (13)

Olefin resin layer; And a rotary screen stereoscopic printed layer formed on the olefin resin layer and containing an acrylic resin.
The method of claim 1, wherein the olefin resin layer is a substrate; And
Wallpaper comprising an olefin-based coating layer formed on top of the substrate.
The wallpaper of claim 2, wherein the olefinic coating layer is a molded product of a resin composition comprising an olefinic resin and an inorganic filler.
The wallpaper of claim 3 wherein the inorganic filler is at least one selected from the group consisting of calcium carbonate, magnesium carbonate, silica, kaolin, titanium oxide, barium sulfate, aluminum hydroxide and talc.
The wallpaper of claim 3 wherein the inorganic filler has an average diameter of 1 μm to 50 μm.
The wallpaper of claim 3 wherein the resin composition further comprises a flame retardant.
The wallpaper of claim 1, wherein the rotary screen stereoscopic printed layer has a thickness of 0.05 mm to 5 mm.
The wallpaper of claim 1, wherein the rotary screen stereoscopic printing layer is a rotary screen printing layer of an acrylic sol comprising an acrylic resin, an inorganic filler and a plasticizer.
The wallpaper according to claim 8, wherein the acrylic sol comprises 10 parts by weight to 100 parts by weight of an inorganic filler and 30 parts by weight to 100 parts by weight of a plasticizer based on 100 parts by weight of an acrylic resin.
9. The wallpaper of claim 8 wherein the acrylic sol further comprises a blowing agent, stabilizer, pigment and diluent.
The wallpaper of claim 1, wherein the rotorrin screen stereoscopic printing layer is formed using galvanicol.
The wallpaper of claim 2 further comprising a printed layer formed on the substrate or olefinic coating layer.
The wallpaper of claim 1, wherein pinholes are formed in the wallpaper.

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