KR102448009B1 - Environment-friendly lining paper and manufacturing method thereof - Google Patents

Abstract

Disclosed is eco-friendly lining paper. Eco-friendly lining paper according to the present invention comprises: a non-woven fabric layer; a water-repellent coating layer formed on one side of the non-woven fabric layer; and a charge neutralization layer formed inside the water-repellent coating layer and the non-woven fabric layer. The non-woven fabric layer includes: 85-90 parts by weight of pulp; 3.0-3.5 parts by weight of a binder; 2.5-3.5 parts by weight of purified water; 0.15-0.25 parts by weight of a paper dispersant; 1.0-2.0 parts by weight of a sizing agent; and 0.3-0.4 parts by weight of a wetting force enhancer. The water-repellent coating layer contains 2.5-3.0 parts by weight of a water repellent, and the charge neutralization layer contains 0.1-0.2 parts by weight of a fixing agent.

Description

Eco-friendly medium and manufacturing method thereof

The present invention relates to a planting medium, and more particularly, to an eco-friendly grassing medium capable of blocking harmful substances and providing high strength and workability.

The World Health Organization (WHO) estimates that indoor pollutants are 1,000 times more likely to reach the lungs than outdoors. Pollutants generated indoors can be broadly divided into pollutants generated from the building itself and pollutants generated according to the use of the building. In this case, pollutants generated by activities in the building may contaminate the building itself and may affect the human body and animals living indoors. In case of pollution caused by the use of buildings, pollutants can be discharged through proper ventilation, so pollutants can be dealt with through ventilation facilities or periodic ventilation.

However, in the case of pollutants generated from the building itself or in the case of pollution caused by pollutants generated by the use of the building polluting the building walls, the discharge of pollutants through ventilation may be a countermeasure against pollutants, This is only a temporary measure and cannot be a defense against the contaminants continuously generated from the building itself or the contamination of the building itself.

In the case of a house where people mainly live indoors, the ceiling and walls are the most important structures from which pollutants generated from the building are discharged. It is known that volatile organic compounds and dust are emitted from the ceilings and walls of houses, and certain organic compounds are known to act as carcinogens.

Although the measurement standards for the emission of organic compounds are established, it is difficult to accurately determine whether harmful substances are emitted due to various factors such as measurement location, time, indoor temperature, and humidity.

On the other hand, various organic compounds and toxic gases that are toxic substances are known to be generated from PVC wallpaper as well as interior finishing materials. Sick house syndrome in new apartment buildings can be caused by chemicals generated from wallpaper, and mold that can occur due to condensation also generates various toxic substances after it occurs in wallpaper.

Although wallpaper is used for the purpose of creating a comfortable indoor environment, the chemical substances generated from the wallpaper itself are a problem, and the wallpaper itself provides an environment for mold growth, so it deviates from the original purpose of wallpaper construction. .

In order to improve the convenience of wallpaper construction and the finishing quality of the wallpaper, the first laying process is used in which the interior walls of the building are prioritized before the wallpaper is installed. Concrete, wood, plywood, gypsum board or other finishing materials are applied to the inner walls of the building, and the green paper mainly plays the role of allowing the so-called wallpaper to be uniformly attached to the wall. In the case of paper, waste paper such as newspaper was sometimes used, but various papers are used depending on the type of paper such as white paper or non-woven fabric and the type of adhesive. In addition, in wallpaper construction, low-cost materials emphasizing the convenience of construction at low cost have been used rather than using high-functional materials, because they have little effect on the aesthetics and cause an increase in the cost of wallpaper construction.

As the demand for building materials increases and the price of building materials rises accordingly, there are cases in which gypsum boards are manufactured by mixing recycled paper. At this time, a phenomenon such as sulfide contamination and color transfer occurs in the gypsum board, causing spots on the wallpaper, and the like. Furthermore, recently, a case of using waste by adding it to cement has been reported through the media. As such, there are cases in which low-quality building materials are used or harmful wastes are used as building materials through various methods that are difficult to regulate by conventional laws, so it is insufficient to be relieved just by the existence of related laws. For example, it was reported that cement is legally manufactured by mixing 'semiconductor factory waste, waste tires, antifreeze, and coal ash', and it was argued that almost all apartments built after 1999 were built with waste cement.

The present invention was led to the present invention by paying attention to the high-functional grass medium for the primary blocking of harmful substances discharged from the building itself and flowing into the room.

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JP 2007-092182 A JP 2005-171446 A JP 2018-131715 A

The purpose of the eco-friendly planting medium according to an embodiment of the present invention is to prevent harmful chemical substances discharged from the wall from being introduced into the room to prevent diffusion into the room.

The purpose of the eco-friendly planting paper according to an embodiment of the present invention is to provide high tensile strength to prevent sagging during planting and sagging during planting to maintain strong adhesion, thereby providing convenience in wallpaper construction.

Objects of the present invention are not limited to those mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

In the paper medium disposed between the wall surface and the coating paper according to an aspect of the present invention for solving the above technical problem to prevent the release of contaminants from the wall surface, the paper medium is a non-woven fabric layer, water repellent formed on one surface of the non-woven fabric layer a coating layer and a charge neutralization layer formed inside the water repellent coating layer and the nonwoven fabric layer, wherein the nonwoven fabric layer comprises 85 to 90 parts by weight of pulp, 3.0 to 3.5 parts by weight of binder, 2.5 to 3.5 parts by weight of purified water, 0.15 to stock dispersant 0.25 parts by weight, 1.0 to 2.0 parts by weight of the sizing agent, 0.3 to 0.4 parts by weight of the wetting agent, the water repellent coating layer contains 2.652.5 to 3.0 parts by weight of the water repellent, and the charge neutralizing layer is 0.1 to 0.2 parts by weight of the fixing agent include

Here, the pulp includes cellulose and PET, and a mixing ratio of the cellulose and PET is 65:30 to 70:18.

Here, the binder may be polyvinyl alcohol, and polyethylene oxide may be used as the stock dispersant.

Here, the water repellent includes paraffin wax, petroleum resin, and tallow alcohol, and the paraffin wax, petroleum resin and tallow alcohol are 1.0 to 1.3% by weight, 1.0 to 1.3% by weight, and 0.15 to 0.25% by weight, respectively. May be included. .

Here, the sizing agent includes rosin fumarate, aluminum salt, and hexamethylenediamine epichlorohydrin polymer, and the rosin fumarate, aluminum salt and hexamethylenediamine epichlorohydrin polymer are each 0.75 to 0.85 wt% , 0.35 to 0.45 wt% and 0.15 to 0.20 wt% may be included.

Here, the wettability enhancing agent may be an epichlorohydrin resin, an epichlorohydrin resin, a melamine-formaldehyde resin, a urea-formaldehyde resin, an epoxidized polyamide resin, or a glyoxylated polyacrylamide resin.

Here, the eco-friendly planting medium may be treated with the sizing agent using an inclined size press.

Here, the fixing agent may be aluminum sulfate.

Here, a coating layer containing ethyl lauroyl arginate may be further formed between the water repellent coating layer and the charge neutralization layer.

Here, an anion adhesive layer having a predetermined width in the longitudinal direction of one side of the other surface of the nonwoven fabric layer may be formed.

Here, an oxygen barrier layer is further included between the nonwoven fabric layer and the water repellent coating layer, wherein the oxygen barrier layer 300 is polyvinyl alcohol (PVOH) having a polymerization degree of 1500 and a saponification degree of 98% and (3-glycidyloxypropyl)trimethoxysilane.

Here, a coating layer containing ethyl lauroyl arginate may be further formed between the water repellent coating layer and the charge neutralization layer.

Here, an anion adhesive layer having a predetermined width in the longitudinal direction of one side of the other surface of the nonwoven fabric layer may be formed.

The eco-friendly paper medium according to the embodiment of the present invention provides a comfortable indoor environment by preventing the chemical substances discharged from the wall from entering the room and preventing them from spreading into the room.

The eco-friendly planting paper according to an embodiment of the present invention provides high tensile strength to prevent sagging during planting and sagging during planting, thereby providing strong adhesive force, thereby greatly increasing the convenience of construction and making high-quality wallpaper construction.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

1 is a cross-sectional view of an eco-friendly planting medium according to an embodiment of the present invention.
Figure 2 is a manufacturing step of an eco-friendly grass medium according to an embodiment of the present invention.
3 is a graph comparing the results of measuring dry tensile strength and wet tensile strength of an eco-friendly planting medium according to an embodiment of the present invention with those of Comparative Examples 1 to 3;
4 is a view showing the degree of water repellency and sagging after the eco-friendly grass paper according to the embodiment of the present invention is constructed on the wall of the building.
5 is a cross-sectional view of an eco-friendly planting medium according to another embodiment of the present invention.

Objects and effects of the present invention, and technical configurations for achieving them will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. In describing the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And the terms described below are terms defined in consideration of donation in the present invention, which may vary depending on the intention or custom of the user or operator.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. Only the present embodiments are provided so that the disclosure of the present invention is complete, and to fully inform those of ordinary skill in the art to which the present invention belongs, the scope of the invention, the present invention is defined by the scope of the claims it will only be Therefore, the definition should be made based on the content throughout this specification.

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

1 shows a cross-section of an eco-friendly grass medium according to an embodiment of the present invention. Referring to FIG. 1 , a water repellent coating layer 200 is formed on one surface of the nonwoven fabric layer 100 , and a charge neutralization layer 300 is formed between the water repellent coating layer and the nonwoven fabric layer. In this case, an oxygen blocking layer 400 may be further formed between the charge neutralization layer and the coating layer.

The eco-friendly paper medium according to an embodiment of the present invention is disposed between the wall surface and the coating paper to prevent the discharge of contaminants from the wall surface, and specifically, the paper medium is a non-woven fabric layer, a water-repellent coating layer formed on one surface of the non-woven fabric layer, and the water repellent It may include a coating layer and a charge neutralization layer formed inside the nonwoven fabric layer. Specifically, the non-woven fabric layer contains 85 to 90 parts by weight of pulp, 3.0 to 3.5 parts by weight of binder, 2.5 to 3.5 parts by weight of purified water, 0.15 to 0.25 parts by weight of stock dispersant, 1.0 to 2.0 parts by weight of sizing agent, 0.3 to 0.4 parts by weight of wetting agent. part, wherein the water repellent coating layer contains 2.5 to 3.0 parts by weight of a water repellent, and the charge neutralization layer may contain 0.1 to 0.2 parts by weight of a fixative.

The pulp may include cellulose and PET. Cellulose is used as a raw material for paper or clothing, and has strong resistance to chemicals and is not easy to propagate microorganisms. In the case of eco-friendly grass medium according to an embodiment of the present invention, raw materials are prepared through single beating of cellulose, and mixed with PET and used as raw materials.

PET has excellent heat resistance, rigidity, electrical properties and oil resistance, and can complement physicochemical properties when used with cellulose. Specifically, when manufactured and used with a mixed material of cellulose and PET, the eco-friendly planting medium according to the embodiment of the present invention not only has hydrophilicity, but also has little deformation due to changes in temperature and humidity, and can inhibit the occurrence of bacteria or mold, which is advantageous do.

In this case, cellulose and PET are preferably mixed in a weight ratio of about 65:30 to 70:18. When PET is included in excess of about 30 parts by weight, the physical stiffness of the first medium is excessively increased, so there is a fear that cracks may occur in the shell due to bending, etc., and the tensile strength may be lowered. On the other hand, when cellulose is included in excess of about 70 parts by weight, it is easy to physically deform according to the absorption of moisture, and it is possible to provide an environment favorable for the spread of mold or bacteria, which is advantageous for growth in wet conditions. In addition, when cellulose is included in excess of about 70 parts by weight, flexibility such as shrinkage or elongation may decrease.

Synthetic resin, which is a mixture of cellulose and PET, which are different types of materials, is used as the main material for the papermaking medium, so it has little effect on temperature and humidity, and the growth of mold is limited. can be easily improved.

As the binder, a polymer binder containing polyvinyl alcohol as a main component may be used. Polyvinyl alcohol is obtained by hydrolyzing polyvinyl acetate. It is a linear polymer of vinyl alcohol (CH2=CHOH), and can contribute to the stabilization of a mixed emulsion of cellulose and PET by using the colloidal effect.

The stock dispersant may include polyethylene oxide. Polyethylene oxide has a hydrogen group and an oxygen group in a cyclic structure, and can form a hydrogen bond with water. Polyethylene oxide is combined with other organic substances to form a nonionic surfactant, and the nonionic surfactant becomes water-soluble by hydration with the oxygen position of the ether bonded to the ethylene oxide chain, which is a hydrophilic group. The longer the chain of ethylene oxide, the greater the number of ethers that are bound, and accordingly, the degree of hydration increases and solubility in water increases. Hydrogen bonds are broken and water molecules in the nonionic surfactant are separated. In this case, it is important to prevent precipitation while maintaining emulsification performance by including a trace amount because nonionic surfactants may exhibit insoluble precipitation or emulsion due to reduced solubility in water.

Polyethylene oxide serves to maintain their dispersed state by mediating the solvent of the hydrophobic graphite or graphene and the hydrophilic feed solution, and the peeling efficiency can be significantly increased. The polyethylene oxide-based dispersant has a hydrophilic polyethylene oxide block and a hydrophobic substituent (R). Accordingly, the hydrophobic portion binds to graphene, and the hydrophilic portion binds to the solvent by hydrogen bonding, etc., thereby providing steric hindrance to inhibit graphene aggregation, thus It allows the exfoliated graphene to be stably dispersed.

Next, the water repellent may include paraffin wax, petroleum resin, tallow alcohol (CAS No. 68439-49-6).

Petroleum resin can improve the specular reflection effect of light on the surface of the grass medium of the present invention by filling the fine pores of the grass medium and uniformly inducing the surface layer, thereby providing a glossy effect. Tallow alcohol is a nonionic surfactant and contains a hydrophilic ethylene oxide chain and a hydrophobic alkyl chain attached through an ether bond. Taro alcohol increases the water repellency of the grass medium by bonding with paraffin wax and petroleum resin through a hydrophobic alkyl chain.

The water repellent includes paraffin wax, petroleum resin, and tallow alcohol, and the paraffin wax, petroleum resin, and tallow alcohol may be included in 1.0 to 1.3 parts by weight, 1.0 to 1.3 parts by weight, and 0.15 to 0.25 parts by weight, respectively. Paraffin wax and petroleum resin are mixed in a ratio of about 1:1 to provide high coating properties. In addition, in the case of tallow alcohol, about 0.2 parts by weight is included to enhance water repellency.

On the other hand, the sizing agent is rosin fumarate (ROSIN, FUMARATED, CAS No. 65997-04-8), aluminum salt (ALUMINUM SALT, CAS No. 10043-01-3), hexamethylenediamine epichlorohydrin polymer (CAS) No. 27636-21-1). Since the sizing agent itself is cationic, the anionic pulp fibers have a self-fixing function, and thus, the amount of the fixing agent used as a role of fixing the sizing agent in the process can be greatly reduced. It is preferably used at a pH near neutral (5.0-6.5).

The wettability enhancer is epichlorohydrin resin, melamine-formaldehyde resin, urea-formaldehyde resin, epoxidized polyamide resin (PAE). ) or glyoxalated polyacrylamide resin can be used. In the case of epichlorohydrin, since the reactivity is very strong, it has excellent self-fixing power to the anionically charged pulp fibers through the addition of a small amount. In addition, it is easily soluble in room temperature water without being affected by water quality, and it is possible to reduce the consumption of fixatives compared to anionic urea resins.

The urea-formaldehyde resin undergoes a condensation reaction by heating to change into a water-insoluble three-dimensional network structure on the fiber surface, preventing the fibers from swelling or protecting the bonds between fibers, thereby exhibiting a wet strength effect. That is, the urea-formaldehyde resin is a thermosetting resin whose curing is accelerated by heating or under acidic conditions, and it is preferable to add alum to adjust the pH to 4 to 5 to accelerate curing.

Next, the melamine-formaldehyde resin may exhibit a wet strength effect by homocrosslinking between a methylol group and a hydrogen atom bonded to nitrogen. Since the number of functional groups capable of chemical reaction is greater than that of urea-formaldehyde resin, the wet strength effect for the unit addition amount can be used in a medium that requires a heavy strength than urea-formaldehyde resin.

Next, in the case of epoxidized polyamide resin, poly-(aminoamide)-epichlorohydrin is abbreviated as PAE resin and epoxy resin. It is a wet strength agent used in neutral or alkaline paper in the papermaking process. It is a polymer with a strong positive charge because a large amount of positive charge by quaternary ammonium is located on the main chain of the polymer. Azetidinium chloride reacts with the remaining secondary amine and is converted into a water-insoluble structure by homocrosslinking to give wet strength. In addition, PAE resin improves the wet strength by reacting with the carboxyl group of cellulose to form an ester bond. That is, PAE resin is a material that suppresses the swelling of fibers and improves wet strength by forming new covalent bonds between fibers.

In the case of glyoxylated polyacrylamide resin, glyoxylated polyacrylamide is a temporary wet force agent and exhibits good expression at neutral or acidic pH. Therefore, it is preferable to apply under the conditions of pH 6.0-6.5. The wet-strength effect can be exhibited by homo-crosslinking and co-crosslinking, and the wet-strength effect is rapidly expressed, so that 60-90% of the wet-strength effect is completed on the reel. There is this. It is preferable to apply when there is a need to improve dry strength together with wet strength.

In the case of a wet strength enhancer, as a toxic substance, when it exceeds 0.4 parts by weight, it may affect water quality, and when it is less than about 0.3 parts by weight, the strength of wet strength may be greatly reduced. Therefore, it is preferable that the wettability enhancer is included in an amount of about 0.3 to 0.4 parts by weight.

The fixing agent may be aluminum sulfate. Aluminum sulfate is preferably contained in an amount of about 0.1 to 0.2 parts by weight. Aluminum sulfate has almost no change in charge density due to changes in papermaking, so it can facilitate the fixation of fine fiber-forming chemicals, etc., and it effectively neutralizes strong anions in papermaking to promote dehydration and improve retention rate, enabling high-speed operation of papermaking machines. can make it In addition, it is possible to increase the efficiency of the strength agent by reducing the anionic contaminants in the process that prevent the effective fixation of the strength. In this case, the use of a fixer of less than about 0.1 may cause a problem of poor dehydration because it is difficult to neutralize the strong anions of the dewatered paper, and the use of a fixative of more than about 0.2 makes it impossible to predict the change in physical properties according to the stock. Not desirable.

In addition, a coating layer comprising ethyl lauroyl arginate may be further formed between the water repellent coating layer and the charge neutralization layer. According to an embodiment of the present invention, the coating layer is made of ethyl lauroyl arginate copolymer, so that water resistance can be increased by the positive electrostatic properties and hydrophilicity of the ethyl lauroyl arginate copolymer. In addition, light resistance can be enhanced by the high charge density of ethyl lauroyl arginate.

On the other hand, an anion adhesive layer having a predetermined width in the longitudinal direction of one side of the other surface of the nonwoven layer may be formed. The anion adhesive layer comprises a fluoride anion, a bromide anion, an iodide anion, a sulfide anion, a chloride anion, an ammonium anion, a hydroxide anion, a sulfate anion, a carbonate anion, a nitrate anion, a phosphate anion, a permanganate anion, an acetate ion, a hydrogen carbonate anion, a boric acid anion, It may include at least one selected from the group consisting of a chromate anion, a dichromate anion, a halogen anion, a hydrochloric acid anion, an organic acid anion, and the like. The anion adhesive layer blocks the penetration of external air or foreign substances into the side surface of the first medium, thereby increasing the durability of the first medium.

Here, an oxygen barrier layer is further included between the nonwoven fabric layer and the water repellent coating layer, wherein the oxygen barrier layer includes polyvinyl alcohol (PVOH) and (3-glycidyloxy) having a saponification degree of 98%. propyl) trimethoxysilane. The oxygen barrier layer blocks the penetration of external oxygen into the wall of the building, thereby blocking the oxidation reaction inside the wall.

Hereinafter, a method for manufacturing an eco-friendly planting medium according to an embodiment of the present invention will be described.

Example

1. Preparation of raw materials

- Put about 420 kg of natural pulp in a tank of about 70㎥ and perform beating work through circulation beating

- Circular beating is performed so that the beating degree of natural pulp is 20.5~21.5 °SR.

- Add about 300 kg of beaten natural pulp and PET and mix to about 90% level

2. Construction work

About 20 kg of a polymer composed of rosin fumarate, aluminum salt and hexamethylenediamine epichlorohydrin, about 11 kg of epichlorohydrin resin, and about 11 kg of aluminum sulfate are sequentially added to the raw material

3. Carry out paperwork

The composition, which has undergone the composition operation, is used to form a paper sheet using a wire, a compression dehydration process is performed through a press machine, and the residual moisture is evaporated using a dryer. , to produce paper with a thickness of about 110 μm

4. By mixing paraffin wax, petroleum resin, and tallow alcohol, add about 200 kg of water repellent to a reaction tank with about 1800 kg of hot water at about 30 ° C. Manufactures water-soluble water-repellent coatings that require waterproofness at the same time

5. Formation of water-repellent coating layer on papermaking paper by putting water-repellent coating agent in the last step of the roller process of the printing process machine

Comparative Example 1

Except for tallow alcohol from the water repellent, the remaining components were mixed in a ratio of 1:1 and the rest of the process was performed in the same manner.

Comparative Example 2

Except for paraffin wax from the water repellent, petroleum resin and tallow alcohol were mixed in a ratio of about 11:1 and the rest of the process was performed in the same way.

Comparative Example 3

Except for the petroleum resin from the water repellent, paraffin wax and tallow alcohol were mixed in a ratio of about 11:1 and the rest of the process was performed in the same manner.

Test Example: Contaminant Emission Test

1. 5VOC: Sum of benzene, Toluene, Ethylbenzene, Xylene, and Styrene

2. Test method: KS M 1998: 2017 Measurement of formaldehyde and volatile organic compound emission from building interior materials 7 Test method - small chamber method

3 is a graph comparing the results of measuring dry tensile strength and wet tensile strength of an eco-friendly planting medium according to an embodiment of the present invention with those of Comparative Examples 1 to 3; Referring to FIG. 3 , in the case of the eco-friendly planting medium according to the embodiment of the present invention, the dry tensile strength was measured to be about 7.36 kgf/15mm. The wet tensile strength was measured to be about 2.81 kgf/15mm.

Test Items Item Test result Test Methods Pollutant release test
(mg/m2h) TVOC 0.021 Ministry of Environment
Indoor air quality process test standard
(ES 02131.1C) 5VOCs/Toluene 0.001/0.001 HCHO 0.000 CH3CHO 0.000 Formaldehyde 0.002

Next, referring to Table 1, in the case of the eco-friendly planting medium according to the embodiment of the present invention, by blocking the permeation of volatile organic compounds or formaldehyde that can be generated from the wall of the building, the chemical substances discharged from the wall are blocked from flowing into the room. By preventing diffusion into the room, it is possible to provide a comfortable indoor environment.

4 is a view showing the degree of water repellency and sagging after the eco-friendly grass paper according to the embodiment of the present invention is constructed on the wall of the building. In the case of the eco-friendly planting paper according to the embodiment of the present invention, it was confirmed that the water dispersed on the wall was evenly repelled during construction, and the moisture absorption was low, so it was strongly attached to the wall during the planting work, and it was confirmed that there was no sagging. Referring to FIG. 4 , the eco-friendly planting paper according to the embodiment of the present invention provides high tensile strength to prevent sagging during planting and sagging during planting, thereby providing strong adhesion, greatly increasing the convenience of construction and performing high-quality wallpaper construction. can make it go away In addition, although not shown, the level of contamination was observed by constructing an eco-friendly medium according to an embodiment of the present invention on a gypsum board manufactured by mixing recycled paper that could cause sulfur contamination and color transfer, but sulfur contamination and transfer dye were prevented due to the water-repellent coating layer was able to confirm that

5 is a cross-sectional view of an eco-friendly planting medium according to another embodiment of the present invention. Referring to FIG. 5 , it can be seen that the oxygen barrier layer is formed between the water repellent coating layer and the charge middle layer. Silane (silane) for use in the oxygen barrier layer is one containing one or more epoxy groups, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane), (3-glycidoxypropyl)trimethoxysilane ((3-glycidoxypropyl) trimethoxysilane), 3-glycidoxypropyl methyldiethoxysilane, 2-(3,4-epoxycyclohexyl)ethyl Triethoxysilane (2- (3,4-epoxycyclohexyl) ethyltriethoxysilane), 3-glycidoxypropylmethyl dimethoxysilane (3-Glycidoxypropylmethyl dimethoxysilane), 3-glycidoxypropyl triethoxysilane (3-glycidoxypropyltriethoxysilane), etc. It is preferable to use

The oxygen barrier layer contains a solid content of 5 to 15 weight per 100 weight. Polyvinyl alcohol per 100 weight of the solid content of the oxygen barrier layer is mixed in a ratio of 75 to 95 weight, and silane is mixed in a ratio of 5 to 25 weight per 100 weight of the solid content.

When the amount of polyvinyl alcohol (PVOH) per 100 weight of the solid content of the oxygen barrier layer is less than 75 weight, the high temperature water resistance increases but the oxygen barrier effect decreases, and the polyvinyl alcohol (PVOH) contained per 100 weight of the solid content of the oxygen barrier layer ( If PVOH) exceeds 95 weight, the oxygen barrier property itself is excellent, but the high temperature water resistance is reduced.

On the other hand, when the content of the silane having at least one epoxy group per 100 weight of the solid content of the oxygen barrier layer is less than 5 weight, the oxygen barrier effect of the coating solution increases, but the performance of high temperature water resistance decreases, and when it exceeds 25 weight, high temperature water resistance is However, the oxygen barrier ability of the coating solution may decrease.

In the present specification and drawings, preferred embodiments of the present invention have been disclosed, and although specific terms are used, these are only used in a general sense to easily explain the technical content of the present invention and help the understanding of the present invention. It is not intended to limit the scope. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

Claims (10)

In the paper medium disposed between the wall surface and the coating paper to prevent the release of contaminants from the wall surface, the paper medium is a non-woven fabric layer, a water-repellent coating layer formed on one surface of the non-woven fabric layer, and the water-repellent coating layer and the non-woven fabric layer. a charge neutralization layer;
The nonwoven layer contains 85 to 90 parts by weight of pulp, 3.0 to 3.5 parts by weight of binder, 2.5 to 3.5 parts by weight of purified water, 0.15 to 0.25 parts by weight of stock dispersant, 1.0 to 2.0 parts by weight of sizing agent, 0.3 to 0.4 parts by weight of wetting agent. And, the water-repellent coating layer contains 2.5 to 3.0 parts by weight of a water repellent, and the charge neutralization layer contains 0.1 to 0.2 parts by weight of a fixing agent,
The pulp includes cellulose and PET, and the mixing ratio of the cellulose and PET is 65:30 to 75:18,
The binder is polyvinyl alcohol, the stock dispersant is polyethylene oxide,
The sizing agent includes rosin fumarate, aluminum salt and hexamethylenediamine epichlorohydrin polymer, and the rosin fumarate, aluminum salt and hexamethylenediamine epichlorohydrin polymer are each 0.75 to 0.85 parts by weight, 0.35 parts by weight. ~0.45 parts by weight and 0.15 to 0.20 parts by weight are included,
The wetting agent is an epichlorohydrin resin,
The fixing agent is aluminum sulfate,
The water repellent includes paraffin wax, petroleum resin, and tallow alcohol, and the paraffin wax, petroleum resin, and tallow alcohol are respectively 1.0 to 1.3 parts by weight, 1.0 to 1.3 parts by weight, and 0.15 to 0.25 parts by weight. Eco-friendly green paper.
delete delete delete delete delete According to claim 1,
The eco-friendly planting media is an eco-friendly planting media, characterized in that the sizing agent is processed using an inclined size press.
According to claim 1,
An oxygen barrier layer is further included between the nonwoven fabric layer and the water repellent coating layer, wherein the oxygen barrier layer is polyvinyl alcohol (PVOH) having a polymerization degree of 1500 and a saponification degree of 98% and (3-glycy Diloxypropyl) eco-friendly planting medium comprising trimethoxysilane.
According to claim 1,
Eco-friendly planting medium, characterized in that it further forms a coating layer containing ethyl lauroyl arginate between the water repellent coating layer and the charge neutralization layer.
According to claim 1,
An anion adhesive layer having a predetermined width in the longitudinal direction of one side of the other surface of the nonwoven layer is formed,
The anion adhesive layer includes a fluoride anion, a bromide anion, an iodide anion, a sulfide anion, a chloride anion, an ammonium anion, a hydroxide anion, a sulfate anion, a carbonate anion, a nitrate anion, a phosphate anion, a permanganate anion, an acetate ion, a hydrogen carbonate anion, a borate anion , Eco-friendly medium, characterized in that at least one selected from the group consisting of chromate anion, dichromate anion, halogen anion, hydrochloric acid anion, organic acid anion, and the like.

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