KR101246736B1 - Foamed vinyl wallpaper and methods for manufacturing a foamed vinyl wallpaper - Google Patents

Abstract

PURPOSE: An aqueous foam wallpaper and a manufacturing method thereof are provided to minimize absorption of a glue such as a wallpaper paste and moisture when constructing a wall surface. CONSTITUTION: A manufacturing method of an aqueous foam wallpaper includes following steps: The surface of a first pulp/fiber complex non-woven fabric(F1) has a printed background pattern. After glue is spread on the surface of a second pulp/fiber complex non-woven fabric(F2), the same is glued with the first pulp / fiber complex non-woven fabric on which a background pattern is printed. An embossing is processed by lamination. An aqueous sol is printed by being attached in a specific pattern on any one surface of the first and second pulp/fiber complex non-woven fabric of a lamination. The lamination in which an aqueous sol is attached forms an aqueous foam layer by drying and foaming at 150-160°C for 30-60 seconds.

Description

Foamed vinyl wallpaper and methods for manufacturing a foamed vinyl wallpaper

The present invention relates to a foamed wall paper manufacturing method, and more particularly, by using a composite nonwoven fabric having a double structure of natural pulp and polyester fibers as a base paper to make the foaming of the aqueous sol uniformly and satisfactorily. It relates to an aqueous foamed wallpaper manufacturing method that can improve the density and smoothness of the.

In general, wallpaper is applied to decorate and protect the interior walls of building structures and to prevent condensation.In recent years, wallpaper is diverted from simple patterns due to the public's perception of the interior and diversification of taste. In addition to providing a feeling, and combines various functionalities such as fireproof performance, soundproofing and durability, various types have been released to expand the choice of consumers.

Such wallpaper can be classified into paper wallpaper, textile wallpaper, silk wallpaper, and foam wallpaper, depending on the material. Paper wallpaper is unusual and individual because it is provided by expressing various colors and patterns in a flat manner by a so-called gravure printing method. There is a limit to satisfying the tastes and desires of modern people who seek and prefer things, and the fabric wallpaper has the advantage of enhancing the interior effect, but the disadvantage is that it is expensive and the appearance is easily damaged. It is easy to clean and has excellent design and moldability, but when the room is wet, there is a problem that sagging or crying occurs.

In particular, foam wall paper is coated with a water-based sol such as vinyl chloride (PVC) in a specific pattern on a base made of paper or fiber non-woven fabric, and then foamed with heat to provide excellent sound insulation, heat insulation, and thermal insulation. Due to the three-dimensional sense, there is an advantage that you can feel the elasticity and warm image and texture.

Conventional foam wallpaper manufacturing process is produced by coating the aqueous sol in the desired pattern on the surface of the paper and then passing it continuously through the oven to foam the aqueous sol and then print and emboss the designed color and pattern on the paper or Alternatively, the gravure printing or rotary screen printing method is printed on a base paper, and an aqueous sol is applied to a certain thickness, and then dried, foamed and cooled in a hot air oven.

By the way, the conventional foam wallpaper uses paper or synthetic fiber non-woven fabric and paper laminated using rayon, polyester, polypropylene, poly vinyl chloride. The foaming of the aqueous sol is very poor, and the aqueous foaming layer formed by the aqueous sol is extremely poor in density and smoothness of the aqueous foaming layer, such as cracking or unevenness, resulting in insufficient design characteristics and embossing effects. have.

That is, when the aqueous sol is applied to the base paper, the aqueous sol is simply deposited on the base paper due to the difference in the rate at which the moisture contained in the composition of the aqueous sol is absorbed into the base paper, and thus the aqueous foaming layer during the drying process in the oven. As bubbles are generated in the final product aqueous foam layer, as if the marks or cracks, such as gombo, and in severe cases there is a problem that easily falls from the base paper.

Accordingly, a method of ironing or coating the surface of the aqueous foaming layer with a transparent treatment agent after foaming the aqueous sol has been proposed (Korea Patent No. 10-0929066). Due to the characteristics of the aqueous sol, which does not have a gelation effect even if added, the effect is insignificant.

In addition, in order to improve the density and smoothness of the aqueous foaming layer at the same time, it is often set a large amount of the application of the aqueous sol, but if the aqueous sol solution is applied too much, the resulting aqueous foaming layer is too thick, so the peeling phenomenon And it is the main cause of the occurrence of cracks, but rather its efficiency is limited.

On the other hand, wallpaper using textile non-woven fabrics is creating an excellent texture and luxury compared to wallpaper such as paper and PVC materials, but interest in this is increasing, but the printing liquid spreads during the printing process due to the morphological characteristics of the nonwoven fabrics that absorb liquids. The printing process is very difficult and difficult due to the occurrence of defects, and the defect rate is high. Also, when the wall is attached, the glue such as paper paste is easily absorbed into the nonwoven fabric, which weakens the adhesive strength to the wall surface. There is a problem that occurs due to shrinkage phenomenon.

Accordingly, the present inventors put emphasis on solving the above-mentioned matters and problems, and the foaming state of the aqueous foaming layer is stable and good, and the density and smoothness are excellent, thereby maximizing three-dimensional decorative effects such as luxury and natural texture. The invention was completed based on the results of several trials and errors and repeated experiments while researching and developing easy, easy and eco-friendly aqueous foam wallpaper.

Accordingly, it is an object of the present invention to provide an aqueous foamed wallpaper having excellent density and smoothness of the aqueous foamed layer and a method of manufacturing the same.

Another object of the present invention is to provide an aqueous foam wallpaper and a method for manufacturing the same, which are easy and easy to print and construct.

It is another object of the present invention to provide an aqueous foamed wallpaper and a method of manufacturing the same to improve fire resistance.

In order to achieve the above object, an embodiment of the present invention, (a) a base pattern printing process for printing a base pattern on the surface of the first pulp / fiber composite nonwoven fabric (b) on the surface of the second pulp / fiber composite nonwoven fabric Forming process of laminating the first pulp / fiber composite nonwoven fabric with the base pattern printed after applying the adhesive (c) The pattern of patterning water-based sol on the surface of any one of the first and second pulp / fiber composite nonwoven fabric of the laminate (D) A method for producing an aqueous foam wallpaper comprising a foam layer forming step of drying and foaming an aqueous sol-laminated paper at 30 to 60 seconds for 30 to 60 seconds to form an aqueous foam layer. To provide.

As a result, the present invention can provide an aqueous foamed wallpaper that is excellent in the density and smoothness of the aqueous foamed layer, as well as being easy to print and construct.

Another embodiment of the present invention may provide an aqueous foamed wallpaper manufacturing method further comprising an embossing treatment step of embossing the paper before the step (c).

Another embodiment of the present invention may provide a method for producing an aqueous foamed wallpaper, further comprising a glitter coating step of spraying and fixing a glitter on the surface of the paper between the steps (c) and (d). have.

Another embodiment of the present invention, the flame retardant adsorption step of adsorbing the flame retardant on the surface of the first pulp / fiber composite nonwoven fabric before the step (a), and the first pulp / fiber composite nonwoven fabric adsorbed flame retardant 100 ~ 120 It is also possible to provide a method for producing an aqueous foam wallpaper comprising a flame retardant drying step of drying at 20 ° C. for 20 to 25 seconds and a resin coating step of coating a resin on the back surface of the dried first pulp / fiber composite nonwoven fabric.

And in an embodiment of the present invention, the first and second pulp / fiber composite nonwoven fabric may be composed of 75 to 85% by weight of natural pulp and 15 to 25% by weight polyethylene terephthalate.

In an embodiment of the present invention, the aqueous sol is oxidized with 25-30% by weight of acrylic resin, 2-7% by weight of urethane resin, 10-15% by weight of additives, 5-10% by weight of blowing agent, 25-35% by weight of inorganic compound and It may be composed of 5 to 10% by weight of titanium and 10 to 15% by weight of water.

The present invention made up of the above-described solution, composition, and manufacturing method is a process of foaming after attaching and printing an aqueous sol to a double-ply laminated paper of a pulp / fiber composite nonwoven fabric in which a heterogeneous material of natural pulp and synthetic fiber is mixed. In the pulp / fiber composite nonwoven fabric naturally absorbs the water of the aqueous sol and evaporates at a rapid rate so that bubbles and the like as in the prior art do not occur. Therefore, the aqueous foaming layer maintains a high-quality state with excellent density and smoothness without any marks or cracks, thereby producing a luxurious texture and maximizing three-dimensional decoration and printing effects.

In addition, the present invention is a resin coating layer crystallized on the pulp / fiber composite non-woven fabric to minimize the phenomenon that the pulp / fiber composite non-woven fabric containing the printing solution in the printing process and absorbing the adhesive or moisture such as paper paste during wall construction Therefore, the printing of various patterns and shapes is made easier and easier, as well as strengthening the adhesion to the wall and prevent the shrinkage phenomenon in the drying process after the wall construction.

1 to 8 is a process diagram schematically showing a method for producing an aqueous foam wallpaper according to each embodiment of the present invention,
9 to 11 is a local photograph shown to compare the aqueous foam wallpaper according to the prior art and the aqueous foam wallpaper according to an embodiment of the present invention,

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions in the present invention, which specifies that the concept should be construed as a concept consistent with the technical spirit of the present invention and commonly understood or commonly recognized in the art.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

≪ Embodiment 1 >

Referring to Figure 1, the aqueous foamed wallpaper manufacturing method according to the first embodiment of the present invention includes a background pattern printing process, lamination forming process, foam pattern printing process, foam layer forming process.

(Background Printing Process)

A process of printing a ground pattern on the surface of the first pulp / fiber composite nonwoven fabric (F1), wherein the first pulp / fiber composite nonwoven fabric (F1) is subjected to the second pulsation (80 / plate cylinder) and the second pressure (81 / pressure cylinder). When passing through), the printing ink 4 buried in the printing plate wire portion of the second plate 80 is transferred to the nonwoven fabric F by the printing pressure of the second press 81 to form a ground pattern.

Here, the drawing plate surface of the second plate 80, that is, the printing ink 4 is printed on the surface of the first pulp / fiber composite nonwoven fabric F1 due to the printing ink 4 during printing, is formed in various patterns such as letters and pictures. Can be.

The background pattern printing process uses the second pulp (80,80 ') and the second pressure (81,81') as the first pulp / fiber composite nonwoven fabric to have a background pattern of various colors and shapes according to the characteristics and patterns of the wallpaper design. It may be performed by sequentially placing a plurality along the movement path of F1).

( Lamination  Forming process)

After applying the adhesive (3) to the surface of the second pulp / fiber composite nonwoven fabric (F2) and bonding it to the first pulp / fiber composite nonwoven fabric (F1) printed with the ground pattern, the second pulp / fiber composite nonwoven fabric ( When F2 is passed between the second pan 30 and the second press 31, the adhesive 3 disposed below the second pan 30 is rotated in a state where it is buried on the surface of the second pan 30. At the same time, the second pulp / fiber composite nonwoven fabric F2 is transferred to and adhered to the surface of the second pulp / fiber composite nonwoven fabric F2 by the pressure of the second pressure 31, which is rotated at the same time. While simultaneously passing between the rollers 40, the first and second pulp / fiber composite nonwoven fabrics F1 / F2 are bonded to each other by the adhesive 3 to form the paper 1.

Here, the second pulp / fiber composite nonwoven fabric F2 may have a width wider than that of the first pulp / fiber composite nonwoven fabric F1 so as to enable a super medium function.

On the other hand, the first and second pulp / fiber composite nonwoven fabric (F1 / F2) in the present invention is to raise the pulp tissue on the fibrous web and then to combine the pulp and the fiber aggregate (web) with a high pressure stream of pulp (pulp) and fibers This is an eco-friendly nonwoven fabric with a double structure (pet). It is a sheet-like fabric manufactured by combining physical and chemical methods without weaving without warp and weft, unlike fabrics.

In other words, the first and second pulp / fiber composite nonwoven fabrics (F1 / F2) are mixed with natural pulp and synthetic fibers, opened in a bale opener, and uniformly mixed to form a thin sheet in a carding machine. A fibrous layer can be made, which can be obtained by combining one or more overlapping fibrous sheets with a molding machine by chemical or physical methods. Chemical methods include spraying a resin solution or coating a foaming resin or dipping the resin solution, and physical methods include needle punching and heat fusion to increase the density and uniformity of the fibrous sheet. thermal bonds, stitch bonds, and so-called water flow bonding methods (US Pat. No. 4,970,104) for binding a fibrous sheet by a spray pressure of water.

In the present invention, the first and second pulp / fiber composite nonwoven fabrics (F1 / F2) are preferably composed of 75 to 85% by weight of natural pulp and 15 to 25% by weight of polyethylene terephthalate. When the natural pulp exceeds 85% by weight based on the total 100% by weight, the strength may be lowered, and when the polyethylene terephthalate exceeds 25% by weight based on the total 100% by weight may be reduced water absorption and retention.

Here, as the yarn of the fiber constituting the pulp / fiber composite nonwoven fabric, in addition to polyethylene terephthalate, for example, nylon, rayon, Plyolefin (PP, PE), acrylic fiber, etc. can be used, and the thickness of the fiber is 1 to 7 denier and the length is 30-60mm can be used.

Method for producing the first and second pulp / fiber composite nonwoven fabric (F1 / F2) is disclosed in the Republic of Korea Patent Registration No. 10-0120030, 10-0712364 and US Patent No. 4,970,104, etc. Description is omitted.

(Foam pattern printing process)

A process of attaching and printing the aqueous sol (5) in a specific pattern on the surface of the first pulp / fiber composite nonwoven fabric (F1) in the paper (1), wherein the paper (1) and the sixth copper plate (120 / corrosion cylinder) When passing through the six pressure 121, the aqueous sol (5) buried in the wire portion of the printing plate of the sixth plate (120) on the surface of the first pulp / fiber composite nonwoven fabric (F1) by the printing pressure of the sixth pressure 121 As it is transferred to, it is attached and printed with a thickness of 0.1-0.2mm to form a pattern of a specific design.

At this time, the sixth copper plate 120 used may be provided to corrode the corrosion depth to a depth of 0.1 ~ 0.8mm so that the aqueous sol (5) is attached to a thickness of 0.1 ~ 0.5mm when printing.

On the other hand, the aqueous sol (5) is 25 to 30% by weight of acrylic resin, 2 to 7% by weight of urethane resin, 10 to 15% by weight of additives, 5 to 10% by weight of blowing agent, 25 to 35% by weight of inorganic compound, and 5 to titanium oxide. 10 wt% and 10-15 wt% of the solvent water may be mixed to provide a sol with a viscosity of 4000 ± 500 cps.

Here, the acrylic resin is mixed and used in the solution state and the emulsion state to improve the fluidity of the resin and to facilitate the adjustment in the ink state.

The foaming agent may be one obtained by microencapsulating isobutane or isopentane with a material of acrylonitrile copolymer, and in order to obtain a uniform foaming surface, it is preferable to use a mixture of foaming temperature having a low temperature and a high temperature. Suitable content is 5% to 10% by weight. In the case of exceeding this range, the crack of the aqueous foaming layer becomes severe or the hardness of the surface becomes weak, resulting in the problem that the scratch resistance is insufficient, and when less than the foaming does not occur properly.

In addition, the capsule of the blowing agent may be formed of a vinylidene chloride-acrylonitrile copolymer having good compatibility with the resin for patterning. That is, the capsule is foamed by the vaporization of the liquefied gas therein as the temperature rises.

The inorganic compound may be at least one selected from the group consisting of fillers calcium carbonate, magnesium carbonate, silica, kaolin, talc, barium sulfate, magnesium sulfate, and metal hydroxides such as antimony oxide, aluminum hydroxide, magnesium hydroxide, and the like. It does not specifically limit.

In this case, the filler forms pores in the aqueous foaming layer and imparts breathability, so that moisture on the wall is discharged out to prevent the occurrence of mold and the like, and the flame retardant is ignited by volatile organic compounds (VOC) generated during processing and molding. And to impart flame retardancy to the aqueous foaming layer.

When the amount of the inorganic compound is more than 35% by weight based on 100% by weight of the total amount of the aqueous sol composition, the moldability or foamability of the aqueous foaming layer may be deteriorated or the adhesive strength with the printing layer may not be sufficient. This may reduce flame retardancy. Titanium oxide is used to impart whiteness.

As an additive, a defoamer may be used to remove bubbles generated when mixing a catalyst, a wetting agent, and a coalescing agent composition, and a thickener may be used to control viscosity. And other pigments for imparting color may be added.

In addition, it suppresses the incubation of microorganisms such as bacteria and molds to prolong the service life of the product, and to prevent damage to the product caused by mold or bacteria during storage, octhilinone and zinc pyrithione. antibacterial and antifungal agents composed of zinc pyrithione, carbendazim, and the like.

In addition, glycerin may be used as an aid for improving fluidity, polyethylene powder or the like may be used to impart slip resistance and scratch resistance, and the tensile strength, elongation, aging resistance, and weather resistance of the aqueous foaming layer may be improved, and foamability and Plasticizers for improving heat resistance can be used.

Water is a solvent used for dissolving other components. Considering the solubility of all components, water is less than 10% by weight based on the total weight of 100% by weight, and when it exceeds 15% by weight, it is excessively diluted to form an aqueous sol composition. Use may lead to inadequate results.

In the composition of the aqueous sol (5), additives such as other synthetic resins, rubbers or antioxidants, heat stabilizers, slip agents, anti blocking agents, crystal nucleating agents, and hydrochloric acid absorbents may be added as necessary within a range that does not impair the performance as wallpaper. It may be included as.

By using the aqueous sol 5 to form an aqueous foaming layer, it is possible to obtain a wallpaper having excellent moldability, foamability, flexibility, lamination and adhesive strength, and adhesive strength with a printing layer.

( Foam layer  Forming process)

A process of drying and foaming the paper 1 with the aqueous sol 5 attached thereto, by drying the paper 1 at a constant speed continuously into a conventional dryer or foamer for wallpaper and drying by the hot air and the aqueous sol 5 ) Is foamed to form an aqueous foaming layer.

By the foamed layer forming process, the adhesive 3 of the paper 1 is completely cured so that the first and second pulp / fiber composite nonwoven fabrics (F1 / F2) remain firmly fixed to each other, and the aqueous foam layer is stable. Foam is formed.

Here, the temperature in the dryer 50 is set in the range of 150 to 160 ° C, and preferably dried and foamed for about 30 to 60 seconds. In this case, when the temperature is low or the drying time is short, foaming of the aqueous sol 5 may not be performed properly, and when the temperature is too high or the drying time is long, the first and second pulp / fiber composite nonwoven fabrics (F1 / F2) The morphological stability of the aqueous foam layer is weakened and can easily be damaged in subsequent processes.

The dryer 50 is then subjected to a cooling step of passing the paper 1 through a conventional cooler 60 maintaining a temperature of 5 to 10 ° C., and then wound in a roll form using a separate winding means. The final product can be completed by cutting accordingly.

Such a manufacturing method according to an embodiment of the present invention is foamed by attaching and printing an aqueous sol (5) on the surface of the laminated paper (1) double overlapping the environmentally friendly first and second pulp / fiber composite nonwoven fabric (F1 / F2) When the first and second pulp / fiber composite nonwoven fabric (F1 / F2) naturally absorbs the moisture contained in the aqueous sol (5), bubbles are not generated during the foaming process, and thus the foaming of the aqueous sol (5) is stable. As a result, the aqueous foam layer can maintain a good quality state excellent in density and smoothness without marks or cracks.

≪ Embodiment 2 >

Referring to FIG. 2, the aqueous foamed wallpaper manufacturing method according to the second embodiment of the present invention includes a background pattern printing process, a paper forming process, an embossing process, a foam pattern printing process, and a foam layer forming process.

Here, in the method of manufacturing the aqueous foam wallpaper according to the second embodiment of the present invention, the same reference numerals as those of the first embodiment are used, and the repeated description thereof is omitted. .

( Embossing  Treatment process)

A process of embossing the first and second pulp / fiber composite nonwoven fabrics (F1 / F2), wherein when the paper 1 passes between a pair of embossing rollers 70, the surface of the embossing roller 70 The uneven portion is pressed hard, resulting in a unique mold.

By this embossing process, not only the paper 1 exhibits good flexibility and a slight elasticity and soft cushioning feeling, but also the aqueous foaming layer pattern pattern on the raised part of the first pulp / fiber composite nonwoven fabric F1 by embossing. When forming the embossed printing form is printed so that the pattern can be seen to rise thickly to produce a more three-dimensional and clear image.

≪ Third Embodiment >

Referring to Figure 3, the aqueous foam wallpaper manufacturing method according to a third embodiment of the present invention is a flame retardant adsorption process, flame retardant drying process, resin coating process, substrate pattern printing process, lamination forming process, foam pattern printing process, foam layer formation Process.

Here, among the methods of manufacturing the aqueous foam wallpaper according to the third embodiment of the present invention, those having the same or similar effects as those of the first and second embodiments described above use the same reference numerals as the first and second embodiments, and Repeated explanations are omitted.

( Flame retardant  Adsorption process)

A process of adsorbing a flame retardant on the surface of a first pulp / fiber composite nonwoven fabric (F1), wherein the first pulp / fiber composite nonwoven fabric (F1) is passed between the first and second presses (10) and the first press (11). In the state where the flame retardant 2 provided in the lower part of 10 is buried on the surface of the first pan cylinder 10 by the pressure of the first pressure 11, the composite of the first pulp / fiber composite nonwoven fabric F1 It is transferred to the surface and adsorbed.

The flame retardant (2) is excellent in physical and chemical stability, it may be used to include a nitrogen-containing phosphorus compound, an organophosphorus compound and a nonionic surfactant as a composition. In the present invention, commercially available product name OKONON-PN40 produced by Hyundai Hi-Chem Co., Ltd., Siheung, Gyeonggi-do, Korea, was used as a flame retardant.

( Flame retardant  Drying process)

As a process of drying the 1st pulp / fiber composite nonwoven fabric F1 on which the flame retardant 2 was adsorbed, drying by hot air can be performed by continuously passing the conventional wallpaper dryer 20 at a constant speed.

Here, the temperature in the dryer 20 is set in the range of 100 to 120 ° C., and preferably dried for about 20 to 25 seconds. At this time, if the temperature is low or the drying time is short, the flame retardant (2) is not completely dried, which adversely affects the next process. If the temperature is too high or the drying time is long, the first pulp / fiber composite nonwoven fabric (F1) and the flame retardant ( The form stability of 2) is weakened, so that in the subsequent process, damaged or satisfactory products cannot be obtained.

In this flame retardant drying process, the flame retardant 2 adsorbed on the first pulp / fiber composite nonwoven fabric F1 is dried and is completely cured in the first pulp / fiber composite nonwoven fabric F1 to maintain a stable state. do.

(Resin Coating Process)

A process for coating a resin on the back surface of the first pulp / fiber composite nonwoven fabric (F1), wherein when the first pulp / fiber composite nonwoven fabric (F1) is passed between the fourth and fourth presses (100) and the fourth press (101) The first pulp / fiber composite nonwoven fabric F1 is formed by the pressure of the fourth pressure 101 in a state in which the resin coating agent 7 provided on the lower portion of the 100 is buried on the surface thereof as the fourth plate 100 rotates. It is transferred to the back side of the coating.

That is, the resin coating agent 7 may be formed by applying about 20 to 40 g / m 2 of solid content based on any one of a gravure copper printing method and a knife coating method on the back surface of the first pulp / fiber composite nonwoven fabric F1. .

As the resin coating agent (7), for example, 10-30% by weight, 15-25% by weight of water, nonionic, anionic dispersant 0.1 by mixing any one or two or more of an aqueous acrylic resin, an EVA resin, and a biodegradable resin. -0.2 weight% and 52.9-59.8 weight% of inorganic pillars can be mixed and formed. As biodegradable resin, you may use either resin using a starch or resin of an aliphatic polyester system. The inorganic pillar functions to prevent heat shrinkage of the base paper, and it is preferable to use those having 300 to 500 mesh particles.

Here, the resin coating agent 7 is mixed with any one or two or more of an aqueous acrylic resin, an EVA resin, and a biodegradable resin, 10 to 30 wt%, 15 to 20 wt% water, nonionic, and 0.1 to 0.2 wt% anionic antifoaming agent. To 75 to 95% by weight of a composition or resin containing 2 to 5% by weight of a white pigment, 38 to 42% by weight of an inorganic hydroxide based on aluminum hydroxide, and 14.9 to 22.8% by weight of minerals of a hydrated calcium borate system. By applying a composition of 5 to 25% by weight of either an ammonium phosphate-based flame retardant or a flame-retardant aqueous urethane resin by applying a solid content of 20 to 45 g / m 2 using one of a wiping method, an impregnation method, or a rotary screen printing method. Of course, it can be made to be flame retardant.

Through this resin coating process, adhesives such as paper paste are absorbed into the interior of the first pulp / fiber composite nonwoven fabric (F1) during wall construction, thereby preventing the adhesive strength against the wall surface and shrinkage due to moisture during drying. have.

In addition, the aqueous foamed wallpaper prepared according to the third embodiment of the present invention is not only excellent in fire resistance and thermal insulation, but also has excellent adhesive strength to the wall, and thus, construction is very simple and easy.

<Fourth Embodiment>

Referring to Figure 4, the aqueous foam wallpaper manufacturing method according to a fourth embodiment of the present invention is a flame retardant adsorption process, flame retardant drying process, resin coating process, substrate pattern printing process, lamination forming process, embossing process, foam pattern printing process And a foamed layer forming step.

That is, the method of manufacturing the aqueous foam wallpaper according to the fourth embodiment of the present invention further includes the flame retardant adsorption process, the flame retardant drying process, and the resin coating process of the third embodiment in the above-described second embodiment. The same reference numerals as in the third embodiment are used, and the repetitive description thereof is omitted.

<Fifth Embodiment>

Referring to FIG. 5, the aqueous foamed wallpaper manufacturing method according to the fifth embodiment of the present invention includes a background pattern printing process, a paper forming process, a foam pattern printing process, a glitter coating process, and a foam layer forming process.

That is, since the method of manufacturing the aqueous foam wallpaper according to the fifth embodiment of the present invention further includes a glitter coating process in the configuration of the first embodiment, the same reference numerals as in the first embodiment are used, and Repeated explanations are omitted.

( Glitter  Application process)

A process of forming a glitter layer by spraying a glitter on the surface of a second pulp / fiber composite nonwoven fabric (F2) having undergone a foam pattern printing process. The sprayer (S) while continuously moving the paper 1 upwards By spraying the evenly using the glitter to form a glitter layer in the form of spots. In this case, the glitter may have various types of various sizes, colors, and shapes, and may be sprayed simultaneously by sequentially arranging the sprayers S connected to each other along the movement path of the paper 1.

Glitter is mixed with adhesive resin having excellent stability such as vinyl acetate emulsion system and acrylic emulsion system at a specific ratio so that the glitter is more firmly fixed on the surface of the second pulp / fiber composite nonwoven fabric (F2) and at the same time, the adhesive resin The coating effect by the component can be obtained incidentally.

In addition, the sprayer (S) uses a pump sprayer that scatters only powder or liquid without ejecting compressed air from the nozzle, so that the glitter is sprayed as a mist during the spraying process and sprayed uniformly without being scattered. It is possible to maintain a stably adhered state.

In the present invention, the glitter (glitter) refers to a decorative material made of fine particles having a shiny decorative effect by causing diffuse reflection, and is provided so that it can be sprayed and applied irregularly on the surface of cardboard such as paper, resin sheet or textile paper. do.

Materials useful as the material of such a glitter may mainly be metallic particles such as aluminum, copper, silver, gold or brass, or synthetic resin particles such as polyethylene terephthalate, polymethacrylate, polyvinyl butyral, and the like. The glitter may itself be transparent, and may have various colors such as gold, silver, blue, red, etc., and the appearance of each glitter may be provided in various forms such as circular, square, triangle, rhombus, and star. Of course.

Therefore, the wallpaper on which the glitter is settled on the surface has the effect that the glitter layer causes diffuse reflection according to the direction of light irradiation and the angle of view, so that the surface is sparkling as a whole and looks brilliant. The soft and subtle mystery is expressed, and the natural and alluring texture can be expressed in three dimensions to maximize the decorative effect.

In addition, the distinctive background color and pattern of the background print layer and the water-based foam layer appear more three-dimensionally clear by the interaction caused by the interference effect of the light expressed in the clutter layer, thereby preventing excessive scattering of the light. Can be reduced.

<Sixth Embodiment>

Referring to Figure 6, the aqueous foamed wallpaper manufacturing method according to a sixth embodiment of the present invention includes a background pattern printing process, lamination forming process, embossing process, foam pattern printing process, glitter coating process, foam layer forming process .

That is, the method of manufacturing the aqueous foam wallpaper according to the sixth embodiment of the present invention is the same as that of the second and fifth embodiments, because the above-described configuration of the glitter coating process of the fifth embodiment is further included in the configuration of the second embodiment. Reference numerals are used and their repeated description is omitted.

Seventh Embodiment

Referring to Figure 7, the aqueous foamed wallpaper manufacturing method according to the seventh embodiment of the present invention is a flame retardant adsorption process, flame retardant drying process, resin coating process, substrate pattern printing process, lamination forming process, foam pattern printing process, glitter coating process And a foamed layer forming step.

That is, the method of manufacturing the aqueous foam wallpaper according to the seventh embodiment of the present invention is the same as the third and fifth embodiments, because the above-described configuration of the glitter coating process of the fifth embodiment is further included in the configuration of the third embodiment. Reference numerals are used and their repeated description is omitted.

&Lt; Eighth Embodiment >

Referring to Figure 8, the aqueous foamed wallpaper manufacturing method according to an eighth embodiment of the present invention is a flame retardant adsorption process, flame retardant drying process, resin coating process, substrate pattern printing process, paper forming process, embossing process, foam pattern printing process , A coating process of a glitter, and a foaming layer forming step.

That is, the method of manufacturing the aqueous foam wallpaper according to the eighth embodiment of the present invention is the same as that of the fourth and fifth embodiments, because the above-described composition of the glitter coating process of the fifth embodiment is further included in the configuration of the fourth embodiment. Reference numerals are used and their repeated description is omitted.

Fig. 9 is a local photograph showing a paper wallpaper in a state in which an aqueous foaming layer is formed by attaching and printing an aqueous sol to a paper having a double overlapping paper according to the prior art, and Fig. 10 is a paper and fiber nonwoven fabric according to the prior art. Is a local photograph showing a paper nonwoven wall paper in which a water-based foaming layer is formed by attaching and printing an aqueous sol to a laminated paper, and FIG. 11 is a double structure of a first and second pulp / fiber composite according to an embodiment of the present invention. It is a local photograph showing a wallpaper in which an aqueous foaming layer is formed by attaching and printing an aqueous sol to a nonwoven fabric.

As shown in Figure 9 to 11, the density and smoothness of the aqueous foam layer of the aqueous foam wallpaper according to an embodiment of the present invention and the density and smoothness of the aqueous foam layer of the aqueous foam wallpaper according to the prior art You can see the difference.

That is, the paper wallpaper and the paper nonwoven wallpaper according to the prior art do not properly absorb the moisture contained in the aqueous sol due to the nature of the surface on which the base pattern and the aqueous foam layer are printed, so that the density and smoothness of the aqueous foam layer are considerably inferior. The aqueous foaming wall paper according to the embodiment of the present invention is formed on the surface of the aqueous foaming layer is formed of a pulp / fiber composite nonwoven fabric, so that the density and smoothness of the aqueous foaming layer are all superior to the aqueous foaming layer according to the prior art. It can be confirmed that it is excellent.

On the other hand, the present invention is included in at least one embodiment described above, and is not limited by one embodiment and the accompanying drawings, various modifications and applications that are not illustrated within the scope without departing from the spirit of the invention It is apparent to those skilled in the art that the present invention can be changed as well as substitution of components and equivalent other embodiments. Therefore, contents related to the modification and application of the features of the present invention should be construed as being included within the scope of the present invention.

1: lamination 2: flame retardant
3: adhesive 4: printing ink
5: Spot pattern ink layer 7: Resin coating agent
10: First Panning 11: First Pressure
20: dryer 30: second pandong
31: second pressure 40: adhesive roller
50: drying / foaming machine 60: cooler
70: embossing roller 80: second plate copper (plate cylinder)
81: 2nd pressure (pressure cylinder) 100: 4th cylinder
101: fourth pressure 120: sixth pan
121: 6th pressure S: Sprayer
F1: first pulp / fiber composite nonwoven fabric F2: second pulp / fiber composite nonwoven fabric

Claims (7)

An aqueous foamed wallpaper manufacturing method comprising the following steps.
(a) A background pattern printing process for printing a background pattern on the surface of the first pulp / fiber composite nonwoven fabric
(b) lamination process of applying an adhesive to the surface of the second pulp / fiber composite nonwoven fabric and then joining it with the first pulp / fiber composite nonwoven fabric printed with the base pattern
(c) Foam pattern printing process for attaching and printing an aqueous sol in a specific patterned pattern on the surface of any one of the first and second pulp / fiber composite nonwoven fabrics of paper
(d) Foam layer forming step of forming an aqueous foaming layer by drying and foaming the paper with an aqueous sol attached at 150-160 ° C. for 30-60 seconds.
The method of claim 1, further comprising an embossing treatment step of embossing the paper prior to the step (c).
The method of claim 1, further comprising a coating process of applying a glitter to the surface of the paper between the step (c) and the step (d) by spraying a glitter (glitter).
The flame retardant adsorption step of adsorbing a flame retardant on the surface of the first pulp / fiber composite nonwoven fabric before the step (a), and the first pulp / fiber to which the flame retardant is adsorbed. A flame retardant drying step of drying the composite nonwoven fabric at 100-120 ° C. for 20-25 seconds, and a resin coating process of coating a resin on the back side of the dried first pulp / fiber composite nonwoven fabric.
The method of claim 1, wherein the first and second pulp / fiber composite nonwoven fabrics are made of 75 to 85 wt% of natural pulp and 15 to 25 wt% of polyethylene terephthalate. .
The aqueous sol according to any one of claims 1 to 3, wherein the aqueous sol is 25 to 30% by weight of acrylic resin, 2 to 7% by weight of urethane resin, 10 to 15% by weight of additive, 5 to 10% by weight of blowing agent, and inorganic A method for producing an aqueous foam wallpaper comprising 25 to 35% by weight of compound, 5 to 10% by weight of titanium oxide and 10 to 15% by weight of water.
An aqueous foamed wallpaper produced by the method of any one of claims 1 to 3.

Images