KR20230106766A - Walking mat comprising a coating layer formed of a natural paint composition - Google Patents

Abstract

The present invention is a walking mat comprising a coating layer formed of a natural paint composition containing 15 to 40% by weight of natural resin, 3 to 50% by weight of loess powder, 3 to 50% by weight of illite powder, and 30 to 70% by weight of an organic solvent. provides

Description

Walking mat comprising a coating layer formed of a natural paint composition

The present invention relates to a walking mat comprising a coating layer formed of a natural paint composition.

In general, there are many cases where a walking mat is installed on a walking path such as a park or a riverside. The walking mat performs a function of protecting grass or trees planted in places other than the walking path by inducing people to pass only on the walking path. In addition, the walking mat can prevent soil from being washed away by rainwater at the lower part of the walking path, resulting in non-uniformity of the ground.

In addition, the walking mat provides a comfortable feeling during walking by absorbing shock, and may prevent rainwater from pooling on the floor by facilitating drainage of rainwater. Therefore, cases where walking paths are installed using walking mats in parks or walking trails are increasing.

As the walking mat, a walking mat made of plastic, waste tires, rubber chips, epoxy polymer, or the like with a structure in which drainage is smoothly performed is used. However, walking mats made of artificial materials have advantages of excellent durability, but have disadvantages in that they do not match well with surroundings, cause environmental pollution, and do not provide comfort to pedestrians.

In order to improve the above disadvantages of artificial walking mats, the installation of walking mats made of rice straw or coconut fiber (coconut fiber) is also increasing. However, it is known that natural walking mats made of rice straw or coconut fiber (coconut fiber) are slippery and have significant disadvantages in terms of water absorption and durability.

Recently, various walking mats have been developed in order to improve the above-described disadvantages of natural walking mats, but walking mats capable of effectively improving water resistance and anti-slip properties have not yet been developed.

Republic of Korea Patent No. 10-2097547

The present invention has been made to solve the above problems of the prior art, and has excellent antibacterial activity and emits a large amount of far-infrared rays, thereby providing a beneficial environment to the human body, improving anti-slipping, and significantly lowering the absorption rate, thereby providing excellent durability. It is an object of the present invention to provide a walking mat coated with a natural paint composition that provides.

the present invention

Provides a walking mat comprising a coating layer formed of a natural paint composition containing 15 to 40% by weight of natural resin, 3 to 50% by weight of loess powder, 3 to 50% by weight of illite powder, and 30 to 70% by weight of an organic solvent. .

The walking mat coated with the natural paint composition of the present invention has excellent antibacterial activity and emits a large amount of far-infrared rays, so it provides a beneficial environment to the human body, improves anti-slip properties, and provides excellent durability by significantly lowering the absorption rate.

1 is a photograph of the shape of a walking mat coated with the natural paint of the present invention.
2 and 3 are photographs taken of the shape of a conventional walking mat.

Hereinafter, the present invention will be described in detail.

The present invention is a walking mat comprising a coating layer formed of a natural paint composition containing 15 to 40% by weight of natural resin, 3 to 50% by weight of loess powder, 3 to 50% by weight of illite powder, and 30 to 70% by weight of an organic solvent. It is about.

The walking mat of the present invention contains ocher and illite components as natural pigments, thereby providing excellent antibacterial activity and emitting a large amount of far-infrared rays, thereby providing a beneficial environment to the human body, effectively improving slip resistance, and shown in FIG. As shown, it provides an environmentally friendly walking mat appearance, thus providing excellent design. In addition, it has a characteristic of greatly reducing the absorption rate of the walking mat by including natural resin.

As the natural resin, at least one selected from rosin, shellac, cashew, and natural rubber may be used. In particular, among these, rosin can be preferably used.

The usefulness of the ocher is already well known and has been used in various fields since ancient times. Ocher has a honeycomb structure with a very large surface area and forms a multi-layered microspace with numerous spaces, and absorbs and stores a large amount of far-infrared rays or moisture in these sponge-like pores. Therefore, when this ocher is heated, it emits far-infrared rays or moisture necessary to harmonize with the surroundings, and has a function of stimulating molecular activity by influencing other surrounding environments. Therefore, it has been used as a material for houses and the like since ancient times.

In addition, about 200 million microorganisms live in a spoonful of ocher, so various enzymes cause a circulatory action. Since it has the ability to remove and decompose toxic substances and plays a role in fertilizing and purifying, loess has been called a living organism since ancient times. come.

The illite is a clay mineral having a mica form, and is a mineral having various effects such as heavy metal adsorption, antibacterial effect, and far-infrared radiation. Illite's mysterious efficacy is gradually being revealed one by one by modern science, but its efficacy has already been found in Donguibogam compiled by Heo Jun, a medical officer in the Joseon Dynasty, and Herbal Medicine compiled by Ju Jirim in China. It is a medicinal soil that has been used for healing. Illite minerals are not widely distributed in stores compared to their efficacy. Globally, there are stores in Yeongdong-gun in Korea, Pennsylvania and Illinois in the U.S., Quebec in Canada, and Sacheon in China.

In the natural paint composition of the present invention, the ocher powder and illite powder having an average particle size of 50 μm or less may be used. If the average particle size of the fine powder exceeds 50 μm, it may not adhere well to the walking mat.

In particular, if ocher fine powder and illite fine powder are included in the natural paint composition, there is an effect of further improving anti-slip by increasing frictional resistance on the coating surface.

The organic solvent is not particularly limited as long as it can dissolve the natural resin. In the present invention, in particular, ethanol harmless to the human body can be preferably used. Since ethanol has a lower density than water, it allows natural resins such as rosin to permeate well into the walking mat when applied to the walking mat, and since ethanol has greater volatility than water, drying after impregnation is also facilitated.

In one embodiment of the present invention, the natural paint composition may further include 1 to 3% by weight of glacial acetic acid and 1 to 15% by weight of vegetable oil, based on the total weight of the composition.

Edible glacial acetic acid may be preferably used as the glacial acetic acid, and as the vegetable oil, urushiol oil, cypress oil, palm oil, coconut oil, castor oil, grape seed oil, jojoba oil, safflower oil, macadamia oil, olive oil, At least one selected from the group consisting of rancid cooking oil and the like may be used.

In one embodiment of the present invention, the natural paint composition may further include 1 to 50% by weight of a flame retardant based on the total weight of the composition. In general, flame retardants and flame retardants dissolve well in water. Since the present invention uses a natural resin that is poorly soluble in water, such as rosin, even if the flame retardant and flame retardant are included, the flame retardant and flame retardant included in the natural paint coating film exposed to the outside is not soluble in moisture due to rain, so it is preferable.

As the flame retardant, flame retardants known in the art may be used, including halogen-based flame retardants, phosphorus-based flame retardants, and inorganic flame retardants and flame retardants. Examples of the inorganic flame retardant include aluminum hydroxide, magnesium hydroxide, and antimony oxide.

In one embodiment of the present invention, the natural paint composition may further include 3 to 10% by weight of a binder represented by Formula 1 based on the total weight of the composition.

In the above formula, a, b and c are mole fractions,

Wherein a is 0.3 to 0.7, b is 0.1 to 0.3, c is 0.2 to 0.4, and a+b+c is 1.

In the present invention, when the copolymer represented by Chemical Formula 1 is included in the above-described content range as a binder, the dispersibility of the natural pigment loess powder and illite powder is improved, and the ocher powder and illite powder are firmly attached to the walking mat. Since it is attached carefully, the durability of the walking mat is greatly improved.

3-[[2-(methacryloyloxy)ethyl]dimethylamino]propionate contained in the copolymer of Formula 1 (3-[[2-(Methacryloyloxy)ethyl]dimethylammonio]propionate CAS No.24249- 95-4) The structural unit is charged by containing an ammonium cation and an ester anion, and functions to increase the dispersibility of ocher fine powder and illite fine powder. The dopamine methacrylamide structural unit is a monomer that forms a very strong bond with both organic and inorganic materials, allowing loess and illite powders to be more firmly fixed to the walking mat. The styrene structural unit serves to improve bonding strength between components.

The copolymer of Chemical Formula 1 is a random copolymer, and a weight average molecular weight of 50,000 to 1,000,000 may be used, and more preferably, a copolymer of 150,000 to 350,000 may be used.

The natural paint composition is pulverized to 1 to 100 µL of natural resin, dissolved in an organic solvent such as ethanol, etc., and after a certain period of time, when it turns into a yellow liquid, a certain amount is filled in a mixing container, and ocher fine powder and illite fine powder are added, , prepared by stirring.

In the present invention, the coating layer formed of the natural paint composition may be formed by a coating method known in the art. For example, coating by spraying of natural paint, application using a brush or rotary brush, etc. is possible, and it is also possible to apply the paint to the surface of the walking mat by immersing the walking mat in the natural paint.

Hereinafter, the present invention will be described in more detail through preparation examples and examples. However, the following examples are intended to explain the present invention in more detail, and the scope of the present invention is not limited by the following examples. The following examples may be appropriately modified or changed by those skilled in the art within the scope of the present invention.

Example 1: Manufacturing of a walking mat coated with natural paint

25% by weight of rosin ground from 1 mm to 100 mm was dissolved in 45% by weight of ethanol. After the color of the rosin solution turned yellow, 15 wt% of loess and 15 wt% of illite powder having an average particle size of 50 μm or less were added, followed by stirring to prepare a natural paint composition.

A previously prepared coconut rope was immersed in the natural paint to coat the natural paint, and then taken out and dried. Next, the coated palm rope was woven to prepare a walking mat coated with natural paint.

Example 2: Manufacturing of a walking mat coated with natural paint

20% by weight of rosin pulverized from 1 mm to 100 mm was dissolved in 2% by weight of edible glacial acetic acid, 8% by weight of macadamia oil, and 40% by weight of ethanol. After the color of the rosin solution turned yellow, 15 wt% of loess and 15 wt% of illite powder having an average particle size of 50 μm or less were added, followed by stirring to prepare a natural paint composition.

A previously prepared coconut rope was immersed in the natural paint to coat the natural paint, and then taken out and dried. Next, the coated palm rope was woven to prepare a walking mat coated with natural paint.

Example 3: Manufacturing of a walking mat coated with natural paint

15% by weight of rosin ground from 1 mm to 100 mm was dissolved in 2% by weight of edible glacial acetic acid, 8% by weight of macadamia oil, and 40% by weight of ethanol. After the color of the rosin solution changes to yellow, 15 wt% of loess and 15 wt% of illite powder having an average particle size of 50 μm or less are added, and 5 wt% of a copolymer represented by Formula 1 prepared as follows is added. Then, the mixture was stirred to prepare a natural paint composition.

A previously prepared coconut rope was immersed in the natural paint to coat the natural paint, and then taken out and dried. Next, the coated palm rope was woven to prepare a walking mat coated with natural paint.

<Synthesis of Copolymer of Formula 1>

3-[[2-(methacryloyloxy)ethyl]dimethylamino]propionate in ethylbenzene as a reaction solvent (CAS No.24249-95- 4), dopamine methacrylamide, and styrene monomer were added in a molar ratio of 0.5:0.2:0.3, and 0.5 part by weight of normal mercaptan was mixed with 100 parts by weight of all monomers to make it uniform.

The polymerization solution prepared above was introduced into a 20 L reactor at a rate of 10 L/hr and polymerized at a temperature of 100° C., and unreacted monomers and reaction solvents were removed in a volatilization tank at a temperature of 150° C., followed by washing, dehydration, and drying. Thus, a copolymer of Formula 1 having a weight average molecular weight of 285,000 was obtained.

[Formula 1]

In the above formula, a, b and c are mole fractions, and a = 0.5, b = 0.2, and c = 0.3.

Test Example 1: Evaluation of negative ion emission amount

For the palm walking mat coated with natural paint prepared in Example 2 and the palm walking mat not coated with natural paint as a comparative example, an anion emission evaluation test was conducted through test method KFIA-FI-1042. More specifically, the test was performed under the conditions of a room temperature of 20 ° C, humidity of 34%, and anion number of 10 6 / cc in the air using a charged particle measuring device, and the number of IONs per unit volume of anions emitted from the object to be measured was measured and shown in Table 1 below. showed up

release negative ion
(Number of IONs released per unit volume/cc) Coconut walking mat coated with natural paint prepared in Example 2 652 Coconut walking mat not coated with the paint of the comparative example 141

From the above test results, it was confirmed that the palm walking mat of Example 2 coated with the natural paint of the present invention exhibited a very superior amount of negative ions generated compared to the palm walking mat of Comparative Example without coating.

Test Example 2: Water absorption evaluation

For the palm walking mat coated with the natural paint prepared in Example 2, a water absorption test was conducted through the test method KS F 3200: 2021. More specifically, after measuring the weight before immersion in the water absorption test, place it horizontally with the smooth surface up at a depth of about 3 cm from the water surface in water at 20 ± 1 ° C., take it out after 24 hours, remove excess moisture remaining on the surface, measure the mass Absorption rate is calculated according to the following formula.

Absorption rate (%)=(W2-W1)/W1 Х100

Here, W1: mass before water immersion (g), W2: mass after water immersion (g), and the test results are shown in Table 2 below.

Absorption rate (%) Coconut walking mat coated with natural paint prepared in Example 2 11 Coconut walking mat not coated with the paint of the comparative example 42

From the above test results, it can be seen that the water absorption rate (%) of the palm walking mat coated with the natural paint of Example 2 of the present invention is about 4 times higher than that of the conventional palm tree walking mat not coated with the paint.

Test Example 3: Evaluation of adhesion of pigment particles

The surface of the palm walking mat coated with the natural paint prepared in Example 2 and Example 3 was adhered to slide glass with double-sided tape, and a peel test was conducted 5 times through lamination, and a magnifying glass The number of particles of the ocher fine powder and illite fine powder desorbed using was confirmed, and shown in Table 3 below.

The number of exfoliated ocher powder and illite powder particles Coconut walking mat coated with natural paint prepared in Example 2 5 pieces Coconut walking mat coated with natural paint prepared in Example 3 One

From the above test results, it can be seen that the natural paint-coated palm walking mats prepared in Examples 2 and 3 were firmly fixed to the loess powder and illite powder. In particular, in the case of the palm walking mat coated with the natural paint of Example 3, it can be seen that the ocher fine powder and illite fine powder are fixed very firmly, and thus the durability is better.

Claims (8)

A walking mat comprising a coating layer formed of a natural paint composition containing 15 to 40% by weight of natural resin, 3 to 50% by weight of loess powder, 3 to 50% by weight of illite powder, and 30 to 70% by weight of an organic solvent. According to claim 1,
The walking mat, characterized in that the natural resin is at least one selected from rosin, shellac, cashew, and natural rubber. According to claim 1,
The loess powder and the illite powder are walking mats, characterized in that the average particle size is 50 ㎛ or less. According to claim 1,
The walking mat, characterized in that the natural resin is rosin and the organic solvent is ethanol. According to claim 4,
The walking mat, characterized in that the natural paint composition further comprises 1 to 3% by weight of glacial acetic acid and 1 to 15% by weight of vegetable oil based on the total weight of the composition. According to claim 5,
The walking mat, characterized in that the natural paint composition further comprises 3 to 10% by weight of a copolymer represented by the following formula (1) based on the total weight of the composition.

In the above formula, a, b and c are mole fractions,
Wherein a is 0.3 to 0.7, b is 0.1 to 0.3, c is 0.2 to 0.4, and a+b+c is 1. According to claim 6,
The walking mat, characterized in that the natural paint composition further comprises 1 to 50% by weight of a flame retardant/flame retardant based on the total weight of the composition. The walking mat according to claim 7, wherein the walking mat is a palm walking mat.

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