KR100467775B1 - Wall paper superior antipollution and method for preparing thereof - Google Patents

Abstract

The present invention relates to a stain-resistant wallpaper and a method for manufacturing the same, and more particularly, to a stain-resistant wallpaper including a surface treatment layer formed by coating a surface treatment agent containing a urethane-acrylate polymer on the top layer of the wallpaper and a method of manufacturing the same.

Pollution-resistant wallpaper of the present invention has the effect of providing a clean indoor environment can not only prevent the contamination by surface treatment on the wallpaper, but also easily remove the source of contamination.

Description

Pollution-resistant wallpaper and its manufacturing method {WALL PAPER SUPERIOR ANTIPOLLUTION AND METHOD FOR PREPARING THEREOF}

The present invention relates to a stain-resistant wallpaper and a method of manufacturing the same, and more particularly, to a stain-resistant wallpaper coated with a surface treatment agent containing a urethane-acrylate polymer on the top layer of the wallpaper and a method of manufacturing the same.

The wallpaper is a paper that protects the wall and is applied for decoration. Laminated wallpaper such as polyvinyl chloride, silk wallpaper or foam wallpaper are commonly used and mainly used for interior walls of single-family homes or apartments. Used for finishing purposes.

The wallpaper provides a hygienic space by blocking the dust and coolness of the cement wall, and various colors and beautiful patterns are printed, so it is very effective in not only interior decoration effect, but also the effect of barrier, elasticity, water resistance, breathability, insulation, sound absorption, and construction. There is.

In the past, however, newspapers, Korean paper, cement wrapping paper, or long fiber nonwoven fabrics with paper were used as glues and glues on the long fiber non-woven fabrics. This is a problem that the time and labor costs are excessively taken apart from the construction of the wall paper and the wallpaper and the contact period is frequently soiled and damaged even with small contamination.

In order to solve this problem, Korean Patent Application No. 1999-0068373 describes a method of spraying a pollution inhibitor on a wall inside a building, and Korean Patent Application No. 2000-0030615 discloses a matte film and an ultra long-lasting fiber. Although described with respect to the integral wallpaper of the nonwoven fabric, the prior art is effective in preventing the pollutant, but there is a problem that it is impossible to remove the pollutant.

Therefore, there is a need for research on wallpaper that prevents contamination of the surface of the wallpaper and at the same time can easily remove the pollutant.

In view of the problems of the prior art, it is an object of the present invention to provide a stain-resistant wallpaper that can easily prevent contamination of the wallpaper as well as easily remove the contamination source.

Another object of the present invention is to provide a method for producing a stain-resistant wallpaper that does not burn time and is easy to clean.

1 is a manufacturing process diagram of the stain-resistant wallpaper (Fig. 4) according to an embodiment of the present invention.

Figure 2 is a manufacturing process of the fouling-resistant wallpaper (FIG. 5) according to an embodiment of the present invention.

Figure 3 is a manufacturing process of the fouling-resistant wallpaper (Figure 6) according to an embodiment of the present invention.

4 is a cross-sectional view of the stain-resistant wallpaper according to an embodiment of the present invention.

5 is a cross-sectional view of the stain-resistant wallpaper according to an embodiment of the present invention.

6 is a cross-sectional view of the stain-resistant wallpaper according to an embodiment of the present invention.

Description of the main symbols in the drawings

10: paper (paper, glass fiber, nonwoven fabric) 20: PVC foam layer

30: printed layer (primary) 40: printed layer (primary)

50: PVC foamed or non-foamed printing layer

60: stain resistant surface treatment layer

The present invention provides a stain-resistant wallpaper comprising a surface treatment layer formed by applying a surface treatment agent containing a urethane-acrylate polymer to the top layer in order to achieve the above object.

In another aspect, the present invention provides a method for producing a stain-resistant wallpaper comprising the step of applying a surface treatment agent containing a urethane-acrylate oligomer to the top layer and curing.

Hereinafter, the present invention will be described in detail.

The present inventors coated with plastisol on a base paper such as imitation paper, gelled and foamed it, and then embossed paper for forming and embossing a printed layer thereon, unembossed foam wallpaper, and paper for embossing printed paper after plywood. As a result of performing a special surface treatment on the wallpaper, it was confirmed that the contamination resistance is excellent, and based on this, the present invention was completed.

The present invention contains a) 25 to 40% by weight of a) urethane-acrylate oligomer, b) 50 to 65% by weight of acrylate monomer, e) 0.01 to 10% by weight of photoinitiator, and f) 0.01 to 10% by weight of the wallpaper. It is to provide a stain-resistant wallpaper coated with a surface treatment agent.

The urethane acrylate oligomer of a) can provide a coating film having a rapid radical polymerization reaction by the initiation reaction of the photoinitiator and having excellent elasticity and toughness, and in particular, excellent adhesion to the PVC foam printing layer.

The urethane acrylate oligomer

Viii) 35-50% by weight of polyisocyanate;

Ii) 30 to 50 weight percent of a polyol; And

Iii) hydroxy functional acrylates containing hydroxyl functional groups 7

To 20 wt%

It is preferably prepared by oligomerizing.

The polyisocyanate of (i) is a group consisting of 5-isocyanate-1- (isocyanate methyl) -1,3,3-trimethyl cyclohexene, 4,4-dicyclohexyl methane diisocyanate, and 1,6-diisocyanate hexane It is preferred to select from, and more preferably to use 4,4-dicyclohexyl methane diisocyanate.

The physical properties of the urethane acrylate depend on the kind of the polyol of the above ii) and its functional group. The polyol having a trifunctional property is mainly bifunctional and trifunctional. There is a problem that is high.

The polyol is preferably selected from the group consisting of polyester polyols, polyether polyols, caprolactone polyols, and polycarbonate polyols, more preferably caprolactone polyols.

Polyether polyols have excellent stretch and low temperature properties, but have the disadvantage of weak physical and chemical properties. In addition, polyester polyols have superior physical and chemical properties compared to polyether polyols, but have poor heat resistance and are easily hydrolyzed. Caprolactone polyol is used for urethane acrylate. In addition, the polycarbonate polyol developed to compensate for the shortcomings of the polyester polyol has various physical properties superior to the polyester polyol, but has a problem of requiring a large amount of reactive diluent due to its high price and high viscosity of the final product.

As the acrylate containing the hydroxyl functional group of iii), it is preferable to use 2-hydroxy ethyl acrylate or 2-hydroxy propyl acrylate, more preferably to use 2-hydroxy propyl acrylate. .

The acrylate monomer of b) serves as a diluent to reduce the working viscosity to 500 to 1000 cps by adding a monomer of 100 cps or less to an oligomer of a) having a viscosity of several thousand to tens of thousands of cps. Do it.

The acrylate monomers are classified into monofunctional acrylate monomers, difunctional acrylate monomers, and trifunctional acrylate monomers according to the number of double bonds, and these are involved in the curing rate and the physical properties of the coating film, so that they are properly mixed to prevent contamination of the paint. It is preferable to adjust so that this may be good.

Although the monofunctional acrylate monomer improves the viscosity of a coating and a softness | flexibility, it is preferable to use it at 10 weight% or less since pollution resistance worsens. In addition, the bifunctional acrylate monomer has a difference in reactivity depending on the type, and affects the hardness of the coating film. The glycol-based monomers are poorly water-soluble, so their use as a fouling-resistant raw material is inappropriate. Moreover, since trifunctional acrylate monomer becomes high in crosslinking density, contamination resistance, hardness, and scratch resistance become favorable, but since a coating film becomes hard, it is preferable to use it at 5 weight% or less.

The photoinitiator of c) is a substance which is activated when a light of a certain wavelength is received to cause a radical reaction, and reacts by attacking a double bond between the oligomer of a) and the acrylate monomer of b).

The photoinitiator should be appropriately selected according to the type of paint, film thickness, working speed (line speed, lamp), pigment presence, and the like as acetophenone, benzil ketal, and photoactive agent. It is preferably selected from the group consisting of an activator, and an aromatic ketone.

The additive of d) is an important raw material for determining the state of the surface in the surface treatment agent for PVC wall paper, and serves to improve the smoothness of the cotton, to make the surface slippery, to provide a moist feeling, and to suppress bubbles and defoaming generated during operation. Examples thereof may be selected from the group consisting of reactive silicone, silica, and wax, and may be used in combination with a quencher. The reactive silicone has a persistent antifouling property, silica is mainly used in the raw material exhibiting a matte, wax is excellent in stain resistance.

The stain-resistant wallpaper of the present invention can be produced by dividing the 60 ° mirror gloss of 5-30% matte, 30-60% semi-gloss, 60-100% gloss.

In addition, the manufacturing method of the stain-resistant wallpaper comprising the step of coating, applying and curing the surface treatment agent on the uppermost layer of the wallpaper of the present invention in detail as follows.

In the method of manufacturing a stain-resistant wallpaper, as shown in FIG. 1, first, a PVC foam layer 20 is formed on a base paper 10, and then gelled and foamed, cooled, and a printed layer 30 is formed thereon. Then, the fouling-resistant surface treatment layer 60 is coated on it, cured, and then preheated, and manufactured by embossing and cooling it (FIGS. 1 and 4).

In addition, in the manufacturing method of the stain-resistant wallpaper, as shown in FIG. 2, first, the PVC foam layer 20 is formed on the base paper 10, and then gelled and foamed, and then cooled, and the primary printed layer 30 thereon. ), And after drying and preheating, cooling by embossing, again forming a secondary printing layer 40 thereon, drying, coating and curing the stain-resistant surface treatment layer 60 thereon, and then preheating And it manufactures by the method of embossing and cooling this (FIG. 2, FIG. 5).

In addition, the manufacturing method of the stain-resistant wallpaper, as shown in Figure 3, first to form a PVC foamed or non-foamed printed layer 50 on the base paper 10, then gelled and foamed and then cooled, and again on After coating and curing the stain resistant surface treatment layer 60, it is prepared by a method of preheating, embossing and cooling (Fig. 3, Fig. 6).

In addition, the surface treatment agent is coated by an air knife, a sponge roll, a mesh roll, a rotary screen roll, or the like to form a surface treatment layer. Since the formed surface treatment layer contains a photocatalyst, UV curing is preferable, and also the urethane-acrylate polymer may be emulsified to prepare an aqueous treatment agent, and then applied and naturally cured.

The stain-resistant wallpaper prepared by the above method has an effect of preventing contamination of the wallpaper from aqueous and oily sources, and at the same time, it is easy to remove contaminants from the wallpaper.

The present invention will be described in more detail with reference to the following examples and comparative examples. However, an Example is for illustrating this invention and is not limited only to these.

EXAMPLE

Example 1

According to the manufacturing process of FIG. 1, a stain-resistant wallpaper including a stain-resistant surface treatment layer 60, a printing layer 30, a PVC foam layer 20, and a base paper 10 was prepared from above.

(Formation of PVC Foam Layer)

65 to 70 parts by weight of dioctylphthalate as a primary plasticizer, 1 to 5 parts by weight of azodicarbonamide as a blowing agent, and 1 to 4 parts of zinc compound as a foaming accelerator Part by weight, 1 to 3 parts by weight of a barium-zinc compound as a foam stabilizer, 6 to 8 parts by weight of titanium dioxide as a pigment, and 50 to 60 parts by weight of calcium bicarbonate as a filler are mixed to form a sol having a viscosity of 5000 ± 500 cps. The layer composition was knife coated to a thickness of 0.3 mm. The gel was heated and gelled at a rate of 40 m / min at a temperature of 210 ° C. for 40 seconds, followed by foaming to change the liquid composition into a solid phase, thereby forming a PVC foam layer 20 and cooling it.

(Print layer formation)

The printing layer 30 was formed by printing a pattern by gravure printing on the PVC foam layer.

(Pollution resistant surface treatment layer formation)

40% by weight of a urethane acrylate oligomer synthesized with 1 mole of 4,4-dicyclo-hexyl methane diisocyanate, 0.5 mole of caprolactone polyol, and 1 mole of 2-hydroxy propyl acrylate on the printing layer 30 , 10% by weight 2-hydroxypropylacrylate as a monofunctional acrylate monomer, 35% by weight 1,6-hexanedioldiacrylate as a bifunctional acrylate monomer, trimethylolpropanetriacrylate as a trifunctional acrylate monomer 5 Polyurethane UV hardening surface treatment agent comprising a weight percent, 1 weight percent of 1-hydroxycyclohexyl ketal as a photoinitiator, 1 weight percent of reactive silicone as an additive, and 5 weight percent silica as a matting agent. The coating was carried out to a thickness of 5 to 20 μm by the method. 6 to 20 medium pressure mercury lamps were used to cure at a speed of 20 to 60 m / min at an output of 200 watt / in to form a fouling resistant surface treatment layer 60.

(Manufacture of pollution-resistant wallpaper; Fig. 1, Fig. 4)

It was prepared as described above and heated the fouling-resistant wallpaper including the stain-resistant surface treatment layer 60, the print layer 30, the PVC foam layer 20, and the base paper 10 from 180 ℃ for 10 to 20 seconds. After the embossing process and cooling process to produce the final product.

As a result of the stain resistance test of the wallpaper prepared by the above method, it was confirmed that the stains were easily removed since the aqueous and oily pollutants were easily removed, and thus the stain resistance was excellent.

Example 2

35 weight% of urethane acrylate oligomer which synthesize | combined 1 mol of 4-dicyclo-hexyl methane diisocyanate, 0.5 mol of caprolactone polyols, and 1 mol of 2-hydroxy propyl acrylate, monofunctional acrylate 10% by weight 2-hydroxypropylacrylate as monomer, 40% by weight 1,6-hexanedioldiacrylate as bifunctional acrylate monomer, 5% by weight trimethylpropanetriacrylate as trifunctional acrylate monomer, 1 as photoinitiator -Pollution-resistant surface treatment layer (60) by coating a polyurethane UV curing surface treatment agent containing 4% by weight of hydroxycyclohexyl ketal, 1% by weight of reactive silicone as an additive, and 5% by weight of silica as a matting agent. Except for forming a) was carried out in the same manner as in Example 1 to prepare a final fouling-resistant wallpaper.

As a result of the stain resistance test of the wallpaper manufactured by the above method, it was confirmed that the stain resistance against the aqueous and oily contaminants is excellent.

Comparative Example 1

Urethane acrylate oligomer synthesized in Example 1, 1 mol of 4-dicyclo-hexyl methane diisocyanate, 0.5 mol of caprolactone polyol, and 1 mol of 2-hydroxypropyl acrylate, monofunctional acrylate 30% by weight 2-hydroxypropylacrylate as monomer, 35% by weight 1,6-hexanedioldiacrylate as bifunctional acrylate monomer, 4% by weight 1-hydroxycyclohexyl ketal as photoinitiator, additives The same as in Example 1 except that the polyurethane UV-curing surface treatment agent containing 1% by weight of reactive silicone, 5% by weight of silica with matting agent to form a fouling resistant surface treatment layer 60 The final fouling resistant wallpaper was prepared by the method.

As a result of the stain resistance test of the wallpaper produced by the above method, the stain resistance to aqueous was good, but the oily magic pen contamination was not easily erased with a dry cloth, and the trace remained.

Comparative Example 2

40 weight% of urethane acrylate oligomer which synthesize | combined 1 mol of 4-dicyclo-hexyl methane diisocyanate, 0.5 mol of caprolactone polyols, and 1 mol of 2-hydroxy propyl acrylate, bifunctional acrylate 45% by weight of 1,6-hexanedioldiacrylate as a monomer, 5% by weight of trimethylolpropane as a trifunctional acrylate monomer, 4% by weight of 1-hydroxycyclohexyl ketal as a photoinitiator, 1% by weight of reactive silicone as an additive The coating was carried out in the same manner as in Example 1 except that the polyurethane UV-cured surface treatment agent containing 5 wt% silica was coated with a matting agent to form a fouling resistant surface treatment layer 60. A stain-resistant wallpaper was prepared.

Experimental Example

The physical properties according to the ratio of polyisocyanate and polyol of the urethane-acrylate oligomer included in the stain-resistant wallpaper of the present invention were measured, and the results are shown in Table 1 below.

division Polyisocyanate / polyol> 1 Polyisocyanate / polyol <1 Hardness reshuffle Soft Molecular Weight Lowering Increase Viscosity Lowering Increase Pollution resistance Good Inadequate Adhesion Inadequate Good

Pollution-resistant wallpaper of the present invention has the effect of providing a clean indoor environment can not only prevent the contamination by surface treatment on the wallpaper, but also easily remove the source of contamination.

Claims (11)

It consists of a base paper, a PVC foam layer formed on the base paper, a printing layer formed on the foam layer and a stain-resistant surface treatment layer formed on the printing layer, the surface treatment layer is coated with a surface treatment agent containing a urethane-acrylate polymer Pollution-resistant wallpaper, characterized in that formed. The method of claim 1, The surface treatment agent a) 25 to 70 wt% urethane-acrylate oligomer; b) 0.01 to 10% by weight monofunctional acrylate monomer; c) 35 to 65 weight percent bifunctional acrylate monomer; d) 0.01 to 5% by weight trifunctional acrylate monomer; e) 0.01 to 10% by weight photoinitiator; And f) at least one selected from the group consisting of reactive silicones, silicas, and waxes Additives 0.01 to 10% by weight Stain-resistant wallpaper. The method of claim 2, The urethane-acrylate oligomer of a) a) i) polyisocyanate is 5-isocyanate-1- (isocyanate Tyl) -1,3,3-trimethyl cyclohexene, 4,4-dicyclohexyl methane diisocia From the group consisting of nates, and 1,6-diisocyanate hexane 35 to 50% by weight of selected polyisocyanate; Ii) polyester polyols, polyether polyols, caprolactone polyols, and poly Polyols selected from the group consisting of carbonate polyols (polyol) 30 to 50 weight percent; And Viii) 2-hydroxy ethyl acrylate, and 2-hydroxy propyl acrylate 7-20% by weight of acrylate containing hydroxyl functional groups selected as Pollution-resistant wallpaper prepared by oligomerizing. The method of claim 2, And the photoinitiator of e) is selected from the group consisting of acetophenone, benzyl ketal, photoactive agent, and aromatic ketone. a) inputting raw paper; b) forming a PVC foam layer on the base paper; c) forming a printing layer on the PVC foam layer; d) coating and curing the stain resistant surface treatment layer on the printed layer; And e) embossing the wallpaper consisting of a stain-resistant surface treatment layer, a printing layer, a PVC foam layer and a base paper from the above, The fouling-resistant surface treatment layer is formed by applying and curing a surface treatment agent containing a urethane-acrylate polymer. The method of claim 5, wherein A method for producing a stain-resistant wallpaper wherein the curing is UV curing, thermal curing, or natural curing. The method of claim 5, wherein Wherein said coating is carried out with an air knife, sponge roll, mesh roll, or rotary screen roll. delete delete delete 6. The surface treatment agent according to claim 5, i) polyisocyanate is 5-isocyanate-1- (isocyanate Tyl) -1,3,3-trimethyl cyclohexene, 4,4-dicyclohexyl methane diisocia From the group consisting of nates, and 1,6-diisocyanate hexane 35 to 50% by weight of selected polyisocyanate; Ii) polyester polyols, polyether polyols, caprolactone polyols, and poly Polyols selected from the group consisting of carbonate polyols (polyol) 30 to 50 weight percent; And Viii) 2-hydroxy ethyl acrylate, and 2-hydroxy propyl acrylate 7-20% by weight of acrylate containing hydroxyl functional groups selected as Method for producing a stain-resistant wallpaper comprising a.