KR102200976B1 - Sponge for kitchen or body and manufacturing method thereof - Google Patents

Abstract

The present invention relates to sponge for a kitchen or a body and a manufacturing method thereof. The sponge for a kitchen or a body comprises: a foam layer; a coating layer which is coated on inner pores or an outer surface of the foam layer; and an adhesive layer which is positioned at a lower part of the foam layer and adheres to a substrate. The manufacturing method of the sponge for a kitchen or a body according to the present invention by the configuration can manufacture the sponge for a kitchen or a body capable of being easily manufactured without degradation of a cleaning effect by adhering to the surface of the substrate and being used as the sponge for a kitchen or a body, and preventing contamination of the sponge caused by moisture or contaminants when storing after use.

Description

Sponge for kitchen or body and its manufacturing method {SPONGE FOR KITCHEN OR BODY AND MANUFACTURING METHOD THEREOF}

The present invention relates to a kitchen or body sponge and a method of manufacturing the same, and more particularly, by being adhered to the surface of a substrate and used as a kitchen or body sponge, it can be easily used without deteriorating the cleaning effect and stored after use. The present invention relates to a kitchen or body sponge that can prevent the sea sponge from being contaminated by moisture or a pollutant, and a method of manufacturing the same.

The sponge is used for various purposes, for example, it is also used as a sponge for kitchen or body cleaning. Among the sponges for cleaning, there is a polyurethane foam. This polyurethane foam is foam-treated to form an open cell, and the surface is formed with surface irregularities due to the open cells, and has a cleaning effect by the surface irregularities.

Kitchen sponges are used together with detergents for washing food and tableware in the kitchen, and a wide variety of products such as vegetable scrubbers, synthetic fibers and metal yarns have been proposed and used.

Most of the scrubbers are kept in a rough state so that the outer surface of the scrubber can cause sufficient friction with the tableware, and therefore various debris and rust on the surface of the tableware must be cleaned.

However, vegetable scrubbers or scrubbers made of synthetic fibers have poor durability and are easily worn or damaged, so their replacement cycle is short, and the frictional force is also weak, so it takes excessive time for washing, and it is torn or discolored, resulting in very poor aesthetic results. Accompanied.

Therefore, the inventors of the present invention are studying to develop a new type of kitchen or body sponge, and by developing a sponge that is used by being bonded to the surface of a kitchen or body substrate, it can be easily manufactured without deteriorating the cleaning effect. And completed the present invention.

Domestic Registration Office No. 20-0470171 (registered on November 26, 2013) Domestic registered patent No. 10-1426471 (registered on July 29, 2014) Korean Patent Publication No. 10-2020-0005106 (published on January 15, 2020)

The present invention is adhered to the surface of a substrate and used as a kitchen or body sponge, so that the cleaning effect is not deteriorated and can be used easily, harmless to the human body, and realizes excellent antibacterial activity, and when stored after use, the sponge is caused by moisture or contamination. It is to provide a sponge for kitchen or body that can prevent contamination and a manufacturing method thereof.

Various problems to be solved by the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

Kitchen or body sponge according to the present invention is a foam layer; A coating layer coated on the inner voids or outer surfaces of the foam layer; And an adhesive layer positioned under the foam layer and adhered to the substrate.

The coating layer is formed by immersing the foam layer in a coating solution composition and then drying, the coating solution composition is 0.1 to 1 parts by weight of copper nanoparticles, 1 to 3 parts by weight of gelite, 1 to 3 parts by weight of shell powder, natural plant extract 0.5 to 1.5 parts by weight, 10 to 20 parts by weight of a self-emulsifying epoxy resin, 100 to 200 parts by weight of a polyurethane resin, and 1 to 3 parts by weight of a dispersant are prepared.

The adhesive layer is formed by applying an adhesive composition to the lower part of the foam layer and then drying, and the adhesive composition is prepared by mixing a main material and a curing agent, the main material being 80 to 120 parts by weight of an acrylic modified polyester resin, a solvent 50 to 100 parts by weight, 30 to 50 parts by weight of bisphenol A epoxy resin, 5 to 10 parts by weight of polyvinyl alcohol, 1 to 3 parts by weight of sulfurized rubber latex, and 0.1 to 0.5 parts by weight of antifoaming agent are mixed in a weight ratio Can be manufactured.

The curing agent is prepared by mixing a curing agent resin and a curing accelerator, but a modified aliphatic polyamine is used as the curing agent resin, 2,4,6-tridimethylaminomethyl phenol is used as the curing accelerator, and the curing agent resin 5 To 10 parts by weight and 1 to 2 parts by weight of the curing accelerator may be mixed and prepared in a weight ratio.

In addition, the method of manufacturing a sponge for kitchen or body according to the present invention is to prepare a foam layer made of a foam of a synthetic resin material, immerse the foam layer in a coating solution composition, and then dry the coating layer on the inner voids or outer surfaces of the foam layer. It may be formed, and may undergo a process of forming an adhesive layer by applying the adhesive composition to the lower portion of the foam layer and drying it.

The coating liquid composition is 0.1 to 1 parts by weight of copper nanoparticles, 1 to 3 parts by weight of gelite, 1 to 3 parts by weight of shell powder, 0.5 to 1.5 parts by weight of natural plant extract, 10 to 20 parts by weight of self-emulsifying epoxy resin, poly It may be prepared by including 100 to 200 parts by weight of a urethane resin and 1 to 3 parts by weight of a dispersant.

The adhesive composition is prepared by mixing a main material and a curing agent, and the curing agent is included in a weight ratio of 70 to 80 parts by weight based on the total 100 parts by weight of the subject, and the subject is 80 to 120 parts by weight of an acrylic modified polyester resin, a solvent 50 to 100 parts by weight, 30 to 50 parts by weight of bisphenol A type epoxy resin, 5 to 10 parts by weight of polyvinyl alcohol, 1 to 3 parts by weight of sulfurized rubber latex, and 0.1 to 0.5 parts by weight of an antifoaming agent. Can be manufactured.

The curing agent is prepared by mixing a curing agent resin and a curing accelerator, but a modified aliphatic polyamine is used as the curing agent resin, 2,4,6-tridimethylaminomethyl phenol is used as the curing accelerator, and the curing agent resin 5 To 10 parts by weight and 1 to 2 parts by weight of the curing accelerator may be mixed and used in a weight ratio.

Details of other embodiments are included in the detailed description.

The method of manufacturing a kitchen or body sponge according to the present invention is adhered to the surface of a substrate and used as a kitchen or body sponge, so that it can be easily used without deteriorating the cleaning effect, is harmless to the human body, and implements excellent antibacterial activity. It is possible to manufacture a kitchen or body sponge that can prevent the sponge from being contaminated by moisture or contamination when stored afterwards.

It will be fully understood that the embodiments of the technical idea of the present invention can provide various effects not specifically mentioned.

1 is a view schematically showing a cross section of a kitchen or body sponge according to the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Unless otherwise defined, all terms including technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, a preferred embodiment will be described in detail with respect to the kitchen or body sponge according to the present invention with reference to the accompanying drawings.

1 is a view schematically showing a cross section of a kitchen or body sponge according to the present invention.

Referring to Figure 1, the sponge for kitchen or body according to the present invention is a foam layer 100, a coating layer 200 coated on an inner or outer surface of the foam layer 100, and a base material located under the foam layer 100 It includes an adhesive layer 300 to be adhered to.

In the foam layer 100, a coating layer 200 is formed on an inner void or an outer surface, and a cleaning agent remains during washing or washing to generate bubbles, and a coating layer 200 formed on the inner or outer surface of the foam layer 100 Contaminants adhering to the surface to be cleaned may be removed by contacting or rubbing with the surface to be cleaned.

The foam layer 100 may be a foam made of various synthetic resins that can be used for kitchen or bathroom, such as polyurethane foam, polyethylene foam, etc., and the construction of the foam 100 is a known technique, for convenience of explanation and of the present invention. For clarity of the technical idea, a detailed description thereof will be omitted.

The coating layer 200 is formed on the inner voids or the outer surface of the foam layer 100 and maintains a rough state to induce a sufficient friction feeling by contacting the surface to be cleaned, and the coating layer 200 and the surface to be cleaned are Contaminants such as various debris and dirt remaining on the surface to be cleaned may be removed by friction.

The coating layer 200 may be formed by immersing the foam layer 100 in a coating liquid composition and then drying it, and the coating liquid composition is absorbed through the voids of the foam layer 100 inside or outside the foam layer 100, so that a sponge for kitchen or body The durability of (10) is improved and can be prevented from being easily worn or broken.

The coating liquid composition is 0.1 to 1 parts by weight of copper nanoparticles, 1 to 3 parts by weight of gelite, 1 to 3 parts by weight of shell powder, 0.5 to 1.5 parts by weight of natural plant extract, 10 to 20 parts by weight of self-emulsifying epoxy resin, poly It may be prepared by including 100 to 200 parts by weight of a urethane resin and 1 to 3 parts by weight of a dispersant.

The copper nanoparticles may be included to impart antibacterial and deodorant properties, and the copper nanoparticles self-inhibit the propagation of bacteria and interfere with the metabolism of various microorganisms to eliminate the cause of unpleasant odors. Can be given.

For example, the copper nanoparticles may be copper oxide nanoparticles, and the copper oxide nanoparticles are stirred with 1 to 3 parts by weight of silane based on 100 parts by weight of copper oxide nanoparticle powder having a particle size of 1 to 200 nm. Copper oxide nanoparticle powder prepared by surface modification may be used.

That is, since the surface of the copper oxide powder is generally hydrophilic, it cannot be dispersed in the resin by OH groups and may be aggregated with each other, but in the present invention, the SIOH group and oxidation of the silane are modified by modifying the surface of the copper oxide powder with silane as described above. By causing hydrolysis between the OH groups on the surface of the copper powder and bonding, the hydrophobic OR group among the silanes is located on the surface of the copper oxide powder, so that the repulsive force between the OR groups, that is, the repulsive force between the copper oxide powders, can improve dispersibility.

In addition, the silane is vinyltriethoxysilane, vinyltrimethoxysilane, or vinyltri(2-methoxyethoxy)silane in order to improve dispersibility as described above. Silane) may be used, but is not necessarily limited thereto, and various silanes already known may be used.

The gelite (Ge-lite) is called pozzolan, contains about 2.0ppm germanium and contains a large amount of far-infrared rays and anions, such as volcanic ash, silicate clay, silicate and the like. That is, the gellite emits far-infrared rays equivalent to about 180 times that of loess, promotes plant growth, has a humidity control function, releases negative ions and human body active energy, has a function of blocking harmful electromagnetic waves, and has a deodorizing and sterilizing effect. It also provides heavy metal neutralization effect.

The shell powder can be prepared by pulverizing and powdering the shell, and the shell is an inorganic secretion formation that wraps and protects the mollusk in mollusks. Such shells are abalone shells, petrified shells, shellfish shells, scallops shells, etc. When crushed according to the type of shellfish, their texture and color are very beautiful and diverse, and they have considerable insulation performance due to the biochemically composed porous calcium component, and pollution in the air through breathing with the surrounding air. It is known as a hygienic and eco-friendly material that has the ability to adsorb substances.

As the shell powder, shell powder prepared by the following method may be used.

First, the shell may be prepared and washed to remove foreign substances adhering to the shell.

The shell may be used any one or more shells selected from the group consisting of abalone, oyster, turban shell, cockle, clams, petrification, and shellfish, and the shell is washed with purified water in which sodium hydrogen carbonate (NaHCO ₃ ) is dissolved. By washing the surface of the shell by using, foreign substances remaining on the surface of the shell can be removed.

The sodium hydrogen carbonate (NaHCO ₃ ) is also used as a food additive, and is not toxic, and has functions such as penetration, diffusion, and expansion, and can cleanly clean the surface of the shell.The sodium hydrogen carbonate is 3 to 5 (w /w)% concentration range, it is preferred to wash for 5 to 15 minutes at a temperature of 25 to 35 ℃.

Next, the washed shell may be first pulverized to prepare a shell granulated pulverized product.

In the above step, the washed shell is first pulverized using a granulator, so that impurities or organic residues inside the shell can be removed in a later process.The first pulverization is performed by using a granulator or a drum granulator. Although it may be performed using a known granulator such as a drum granulator or a compression pelletizer, it is not necessarily limited to the granulator described above.

Next, the shell granulated pulverized material may be immersed in the mixed solution.

In the above step, impurities or organic residues contained in the shell granulated pulverized product may be removed by immersing the shell granulated pulverized product in the mixed solution.The mixed solution includes nitric acid 0.1 to 0.5% by weight, phosphate compound 0.5 to 1.5 Consisting of wt%, 0.01 to 0.1 wt% persulfate, 1 to 3 wt% acetic acid, and the remaining amount of purified water, the shell granulated pulverized product may be immersed in the mixture for 10 to 30 minutes.

In addition, as the phosphate compound in the step, first sodium phosphate (NaH ₂ PO ₄ ), second sodium phosphate (Na ₂ HPO ₄ ), third sodium phosphate (Na ₃ PO ₄ ), first potassium phosphate (KH ₂ PO ₄ ), second potassium phosphate (K ₂ HPO ₄ ), first ammonium phosphate ((NH ₄ ) H ₂ PO ₄ ), second ammonium phosphate ((NH ₄ ) ₂ HPO ₄ ) and tertiary ammonium phosphate (( NH ₄ ) ₃ PO ₄ ) Any one or more selected from the group consisting of may be used, and the persulfate is ammonium persulfate ((NH ₄ ) ₂ S ₂ O ₈ ), sodium persulfate (Na ₂ S ₂ O ₈ ) Or potassium persulfate (K ₂ O ₈ S ₂ ) Any one or more selected from may be used.

Subsequently, the shell granulated pulverized material may be separated from the mixed solution and taken out, and then the shell granulated pulverized material may be heated and fired using a sintering furnace.

In the above step, by heating the separated shell granulated pulverized product using a sintering furnace, contaminants adsorbed to the fine pores of the shell granulated pulverized may be removed and activated. It can be carried out by heating for 50 to 150 minutes at a temperature of 1,300 to 1,600 ℃ after the injection.

In addition, in the above step, the calcium carbonate constituting the shell may be divided into calcium oxide and carbon dioxide as follows by going through the firing process as described above.

Calcium carbonate (CaCO ₃ ) → Calcium oxide (CaO) + carbon dioxide (CO ₂ )

Next, the sintered shell granulated pulverized product may be second pulverized, and then impurities may be removed to prepare a fine shell pulverized product.

In the above step, the sintered shell granulated pulverized product may be pulverized using a ball mill or various known pulverizers, and in the step, the pulverized shell fine pulverized product is pulverized so that the particle size of the prepared shell fine pulverized material is 1 to 10 μm. I can.

In addition, in the above step, impurities such as heavy metals that may remain in the second crushed shell may be removed by second pulverizing the sintered shell granulated product and then rotating it in a rotating cylinder equipped with a magnet. Impurities such as heavy metals, which may be included in the second crushed shell, may be removed by inserting the second crushed shell into a rotating cylinder equipped with a magnet and rotating at a rotation speed of 500 to 1000 RPM for 20 to 40 minutes.

Next, it can be inoculated by spraying the lactic acid bacteria culture solution to the pulverized shell fine particles.

In the above step, the lactic acid bacteria culture solution may be sprayed at a weight ratio of 1 to 5 parts by weight relative to 100 parts by weight of the shell fine pulverized product, and the lactic acid bacteria may use a lactic acid strain isolated from kimchi, a fermented food. , As the lactic acid strain, Lactobacillus curvatus , Weissella viridescens , Lactobacillus plantarum , and Any one or more known lactic acid strains selected from the group consisting of Leuconostoc lactis may be used.

For example, in the above step, in order to prepare a lactic acid bacteria culture solution from kimchi, the pH of the medium is adjusted to 2.8-3.2 using 1.2N HCl, and then the lactic acid strain is separated from the kimchi, and the isolated lactic acid strain is MRS broth (Oxoid , England) at 37~39℃ for 20 to 25 hours, then diluted to 1×1.0 ⁸ to 5×1.0 ⁸ CFU/mL, and then centrifuged at 10,000 to 15,000 rpm for 10 to 15 minutes After separating only (supernatant), filtering the supernatant with a 0.45 μm syringe filter, lactic acid bacteria are diluted by mixing in a weight ratio of 1,000 to 2,000 parts by weight of sterilized distilled water with respect to 100 parts by weight of the filtered supernatant. A culture solution can be prepared.

Subsequently, the pulverized shellfish inoculated with the lactic acid bacteria culture solution may be fermented.

In the above step, the pulverized shell shell inoculated with the lactic acid bacteria culture medium is maintained at a temperature of 38 to 45° C. and a humidity of 60 to 65%, and then fermented for 5 to 10 days.

Next, the fermented shell fine pulverized product may be washed, dried, and sterilized to prepare shell powder consisting of calcium powder.

In the above step, the fermented shell fine pulverized product may be washed with purified water and then subjected to drying and sterilization processes. The drying and sterilization processes are well-known technologies, so for convenience of explanation and the technical idea of the present invention. For clarity, detailed descriptions thereof will be omitted.

The natural plant extract can be prepared using natural plants that have insecticidal, antibacterial, and anti-repellant effects against pollutants, mites, and pests.For example, the natural plants include ginkgo, albizia julibrissin, fig trees, Natural plants consisting of paulownia, horsetail, and cypress can be used, and the natural plants include gingko, albizia julibrissin, fig, paulownia, horsetail and cypress trees, respectively, 1:1:1:1:1:1 It may be blended and mixed in a weight ratio of.

The ginkgo tree is denoted by the scientific name Ginkgo biloba L, and is a larch tree belonging to the ginkgo family, and has been used as a garden tree or a street tree since ancient times, and the fruit ginkgo has been used for edible or medicinal purposes.

In particular, the leaves of ginkgo biloba have been widely prescribed in oriental medicine as a treatment for hypertension, Parkin's disease and diabetes, and recently, drugs using unique flavonoids extracted from ginkgo leaves are excellent for treating adult diseases such as high blood pressure, senile dementia and diabetes. It has been found to be effective, and is widely used as a raw material for cosmetics and functional foods. In addition, in recent years, research on the treatment of antibacterial materials using ginkgo tree is actively being conducted.

The Albizzia julibrissin Durazzini is distributed in Asia, such as China, Taiwan, Japan, and Korea, and is widely used as a garden tree in Korea. The bark of Albizia julibrissin is listed as Hapwan blood in the Korean herbal medicine standard books and used by drying the bark collected in early summer. It is cylindrical or semi-cylindrical, and the outer surface is grayish brown or brown, and the inner surface is light yellowish brown or yellowish white. It has no odor, has a mild taste, is astringent, and slightly irritates the tongue. In previous studies, it is known that it contains abundant phytochemicals such as tannin, saponin, and sitosterol. It is known to have liver, excitement, diuretic, insect repellent, antitussive, and analgesic effects.

The fig tree (Ficus carica L) is a deciduous shrub belonging to the Morus family and is native to the western Mediterranean coast of Asia. It is 2~4m in height, and the bark is grayish-white, the leaves are displaced and thick in the shape of a wide egg, the surface is rough, and the back has hairs. Emulsion is known to be effective for athlete's foot, boils, and hemorrhoids, leaves for athlete's foot and neuralgia, and fruit for lowering blood pressure and constipation.

The paulownia coreana Uyeki is a deciduous arboreous tree belonging to the genus Paulownia in the Hyeonsam family and is a species specially produced in Korea. The height of the paulownia tree is about 15m, and the bark is light brown with dark brown stripes vertically. The bark of the paulownia tree is called Dongpi, and it is known to be effective in bronchial pneumonia, bacterial diarrhea, acute enteritis, and acute conjunctivitis, and the leaves of paulownia tree are called Dongyeop, and are known to be effective in facial flushing and pustules.

The horsetail (Equisetum Arvense L) is a perennial herb growing in mountains and fields nationwide. The growing environment is grown in a sunny or sunny place. The height is 30~40cm, and the genitalia emerges in early spring, forming sporangia at the end of the stem in the shape of an apartment. The antelope is hollow, grows obliquely, stands upright on the ground, and is vertically angular. The stem is used for medicinal purposes. It is also called the leading lobe. It grows in grass and breeds with long underground stems.

The picrasma quassioides contains quassin, which is very bitter, and has a yellow covering on the bark and grows up to about 20m in height. The leaves are right upper and the small leaves are broad-ovate, the bottom is round, and the end is sharp. The flowers are yellow-green hermaphrodites, which are extracted in the form of a bristle from May to June, and the fruit is a drupe, elliptical spherical, and ripens in red around September. Each part, such as leaves, bark, stem, and root, is used as a medicinal material. It is effective in indigestion, bacterial haricot, gastroenteritis, biliary tract infection, tonsillitis because it has the efficacy of cooling heat, humidity, insecticide, and detoxification. Indigestion, gastritis, and loss of appetite, it has been mainly used as a medicine to treat the stomach.

The natural plant extract may be prepared by fermenting and then extracting the natural plant.For example, the natural plant extract is a microorganism in a natural plant consisting of ginkgo, alpinaceae, fig, paulownia, horsetail, and cypress. It can be prepared by adding and fermenting and then extracting.

In addition, as a microorganism mixed with the natural plant, Acetovacter sp may be used, and as the microorganism of the Acetobacter genus, Acetovacter aceti may be used.

In addition, the natural plant extract may be prepared by fermenting the natural plant to which the microorganism is added for 3 to 5 days at a temperature of 38 to 42° C. and then extracting it with a solvent.

In addition, as a solvent for extracting the fermented natural plants, water, C1-C6 anhydrous or hydrated lower alcohol, acetone, butylene glycol, ethyl acetate, diethyl acetate, diethyl ether, benzene, chloroform, and hexane. Any one or more extraction solvents selected from the group may be used.

In addition, the fermented natural plant can be extracted using various extraction methods such as hot water extraction, organic solvent extraction, ultrasonic extraction, and supercritical extraction.For example, the ultrasonic extraction method refers to water, C1 as an extraction solvent in a sample. Anhydrous or water-containing lower alcohol of ~C6, acetone, butylene glycol, ethyl acetate, diethyl acetate, diethyl ether, benzene, chloroform, and any one or more extraction solvents selected from the group consisting of hexane in a volume of 10 to 20 times After addition, it means an extraction method performed using an ultrasonic extraction method of 1 to 10 hours, preferably 1 to 4 hours.

In addition, the supercritical extraction method refers to fermented natural plants and 500-700 mL of ethanol (99.5%) as a co-solvent and put into a supercritical fluid extraction reactor (Natex, Autstria), and the temperature in the reactor is 65° C., the pressure is 450 bar, S/ It means the method of extracting under the condition that the F ratio (supercritical fluid kg/Feed kg) is 35.

Specifically, for example, the natural plant extract may be prepared by the following method.

First, washing to remove foreign substances present on the surface of natural plants consisting of ginkgo, albizia julibrissin, ficus, paulownia, horsetail and cypress trees, and the natural plant at a temperature of 30 to 40 ℃ 5 to 10 days After drying, the dried natural plant was pulverized, and 3,500 ml of distilled water per 100 g of the pulverized natural plant was added, hot water was extracted at 150 to 170°C for 5 hours, and then filtered to prepare a natural plant hot water extract.

At this time, the natural plant was to be mixed in a weight ratio of 1: 1: 1: 1: 1, respectively, of ginkgo tree, albizia julibrissin tree, fig tree, paulownia tree, horsetail, and cypress tree.

The filtered natural plant hot water extract was concentrated under reduced pressure at 60 to 65°C, and the final concentrated solution was adjusted to 450 ml, and then filtered to prepare a natural plant extract.

The natural plant extract was added to the culture solution of Acetovacter aceti at 10 g/L.

Dextrose as a carbon source and dipotassium phosphate as a pH regulator were added thereto.

At this time, Acetovacter aceti was used as the strain used, and 50,000 cfu/L per culture was added.

Culture was carried out using a fermenter for 10 days, maintaining at 35°C, pH 5-7, and after cultivation, the culture medium was centrifuged to remove the culture bacteria first, and then finally filtered using a filter.

The filtrate thus obtained was further aged for 10 days in a low-temperature warehouse at 4° C., and the solution was filtered again using a filter to prepare a natural plant extract.

The self-emulsifying epoxy resin is an epoxy resin having an active group that can be emulsified in itself, and the self-emulsifying epoxy resin is a self-emulsifying modified epoxy resin having an epoxy equivalent of 200 to 220 g/eq, and thus strength and weather resistance. , It can remarkably improve physical properties such as water resistance.

The polyurethane resin may be, for example, an acrylic-modified polyurethane resin, and the acrylic-modified polyurethane resin may serve as a binder or an adhesive bonding the composition constituting the coating liquid composition.

As the acrylic-modified polyurethane, an acrylic-modified polyurethane prepared by the following manufacturing method may be used.

First, diisocyanate (Diisocyanate), polyol (Polyol) and organic solvent (Organic Solvent) can be prepared and mixed to prepare a mixed solution, the mixed solution is diisocyanate 1 mol (mol) and polyol 0.5 to 1.5 mol (mol) It is prepared in a ratio of, and the organic solvent may be included in an amount of 60 to 70% by weight (wt%) of the total content of the mixed solution.

The diisocyanate is toluene diisocyanate (TDI), 4,4'-diphenylmethane diisocyanate (4,4'-Diphenylmethane diisocyanate (MDI)), hexamethylene diisocyanate (HDI)), Any one or more selected from the group consisting of isophorone diisocyanate (IPDI) and 4,4'-methylenebis (cyclohexyl isocyanate) (4,4'-Methylenebis (cyclohexyl isocyanate) (HMDI)) may be used. .

The polyol may be any one or more selected from polyether polyol or polyester polyol.

The organic solvent may be any one or more selected from the group consisting of toluene, methyl ethyl ketone, ethyl acetate, acetone, and dimethylformamide.

Next, it is possible to prepare a polyurethane (Isocyanate terminated Polyurethane) having an isocyanate terminal group by reacting the mixture consisting of the diisocyanate, a polyol and an organic solvent, the reaction at a temperature of 83 to 88 ℃ for 3 to 5 hours Can be done.

Next, a temperature of 83 to 87°C while adding 0.1 to 0.5 mol (mol) of a monomer (containing hydroxy group) to the isocyanate terminated polyurethane (Isocyanate terminated Polyurethane) By reacting for 2 to 4 hours in the polyurethane (Vinyl terminated Polyurethane) having a vinyl end group can be prepared.

The hydroxy group-containing monomer (Monomer (containing hydroxy group)) is 2-hydroxyethyl methacrylate (2-Hydroxyethyl methacrylate), 2-hydroxypropyl methacrylate (2-Hydroxypropyl methacrylate), 2-ha Any one or more selected from the group consisting of hydroxyethyl acrylate (2-Hydroxyethyl acrylate) and allyl alcohol may be used.

Subsequently, an acrylic-modified polyurethane may be prepared by reacting while adding a monomer to the polyurethane having a vinyl end group (Vinyl terminated Polyurethane). The polyurethane and the monomer each have a vinyl end group. It may be included in a weight ratio of 70 to 90% by weight of urethane and 10 to 30% by weight of monomer.

In addition, the acrylic-modified polyurethane adhesive may be prepared by reacting for 1 to 3 hours at a temperature of 75 to 80°C while adding a monomer to the polyurethane having a vinyl end group.

The monomer may be any one or more selected from the group consisting of styrene, methyl methacrylate, acrylonitrile, acrylic acid, and acrylic monomer.

The dispersant may be used to prevent precipitation of the coating liquid composition and to have dispersing properties.For example, as the dispersant, a polyester-polydimethylsiloxane copolymer, dimethylol butanoic acid (DMBA), Any one or more selected from the group consisting of dimethylol propionic acid (DMPA) and methylenediethanolamine may be used.

The adhesive layer 300 is located under the foam layer 100, and the foam layer 100 may be adhered to the surface of a substrate (not shown). The present invention provides the adhesive layer 300 as described above. By using the foam layer 100 by bonding with a substrate (not shown), it can be easily manufactured without deteriorating the cleaning or cleaning effect, and can be repeatedly used by replacing only the kitchen or body sponge 10 .

In the present invention, the substrate may be the surface of various kitchen and bathroom products such as a conventional kitchen scrubber, body sponge, etc., and the adhesive layer 300 is dried after applying an adhesive composition under the foam layer 100 It may be formed by, the adhesive composition may be prepared by mixing a main material and a curing agent.

That is, in the adhesive composition, the subject matter provides adhesion, and the curing agent may be mixed with the subject and used to adjust the pot life of the adhesive composition, and the curing agent is 70 to 80 parts by weight of the entire subject. It may be included in a weight ratio of parts by weight.

In the adhesive composition, the subject is 80 to 120 parts by weight of an acrylic-modified polyester resin, 50 to 100 parts by weight of a solvent, 30 to 50 parts by weight of a bisphenol A type epoxy resin, 5 to 10 parts by weight of polyvinyl alcohol, It can be prepared by mixing in a weight ratio of 1 to 3 parts by weight of sulfurized rubber latex and 0.1 to 0.5 parts by weight of an antifoaming agent.

The acrylic-modified polyester resin is condensation-polymerized with a polybasic acid containing 40 to 50% by weight of anhydrous acid and 50 to 60% by weight of an aliphatic acid by condensation polymerization of a polyhydric alcohol containing 80 to 90% by weight of a diol and 10 to 20% by weight of triol. To prepare a polyester resin having a value of 45 to 65 mgKOH/g, an acid value of 3 mgKOH/g or less, a glass transition temperature of 5 to 20°C, and a weight average molecular weight (Mw) of 2,500 to 3,500, and the polyester resin 50 to 60 weight % And 40-50% by weight of acrylic monomer are grafted to have a weight average molecular weight (Mw) of 5,000 to 7,000, a hydroxyl value of 50 to 60 mgKOH/g, an acid value of 3 mgKOH/g or less, and a glass transition temperature of 10 to 20°C An acrylic modified polyester resin in the range can be prepared.

The solvent may be used to adjust viscosity and fluidity when applying the adhesive composition, and as the solvent, an ether-based solvent, an aromatic solvent, an acetate-based solvent, a ketone-based solvent, an alcohol-based solvent, or a mixed solvent thereof may be used. I can.

For example, as the ether solvent, propylene glycol monopropyl ether, propylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethyl Glycol monoethyl ether, diethyl glycol monopropyl ether, diethyl glycol monobutyl ether, diethylene glycol-2-ethylhexyl ether, and the like may be used alone or in combination.

Toluene and xylene may be used alone or in combination as the aromatic solvent, and butyl acetate and ethyl acetate may be used alone or in combination as the acetate-based solvent. The ketone solvent may be used alone or in combination with acetone, methyl ethyl ketone, methyl isobutyl ketone, and the like.

As the alcohol-based solvent, diacetone alcohol (DAA), n-butanol, methanol, ethanol, isopropyl alcohol, and the like may be used alone or in combination.

The bisphenol A type epoxy resin has excellent adhesion, and the bisphenol A type epoxy resin may be a mixture of a bisphenol A type epoxy resin having an epoxy equivalent of 186 to 190 and a bisphenol A type epoxy resin having an epoxy equivalent of 600 to 700. .

The polyvinyl alcohol has characteristics such as excellent linearity, flat zig-zag conformation, high crystallinity, excellent alkali resistance to withstand pH 13.5 or higher, and excellent adhesion.

The application of the polyvinyl alcohol is expanding due to the excellent physical properties and various application ranges as described above. In particular, many studies have been conducted on the production of high-strength and high-elasticity gels and high-performance polyvinyl alcohol fibers using polyvinyl alcohol.

As an example, polyvinyl alcohol is applicable to a membrane separation technique using a polymer film. Polymer films are used in a very wide range of fields including chemical industry, biotechnology, resources, energy, and the environment. In particular, the pervaporation method capable of separating a liquid organic mixture or an organic aqueous solution has many advantages over traditional distillation methods, such as energy saving and device miniaturization, and is widely used in the production of anhydrous alcohol and separation of organic mixtures. Therefore, it can be said that polyvinyl alcohol has high utility in the field of polymer films.

In addition, polyvinyl alcohol can be applied to a technology for manufacturing microfibers by electrospinning technology. The method of producing microfibers by electrospinning technology is to induce the formation of a liquid jet in the solution discharged from the spinneret by applying a high voltage to the polymer resin solution, and at this time, the volatilization of the solvent is caused by an electrical repulsion force. It is characterized in that a fine fiber of a thickness is obtained by continuous stretching.

In particular, when using electrospinning technology, fiber yarns are accumulated in the collector in the form of a three-dimensional network of webs. These microfibers have high specific surface area and tension, as well as mechanical properties, chemical properties, and cell biomaterial recognition characteristics. do. Therefore, polyvinyl alcohol can be applied in a wide range of fields such as microfibers, industrial materials including filters, photochemical sensor materials, biomedical materials, and beauty materials.

The sulfurized rubber latex is heated and mixed with a rubber latex having a weight ratio of 98.1 to 99.1% by weight of the total 100% by weight of the sulfurized rubber latex at a temperature of 30 to 40°C, and a sulfurizing agent having a weight ratio of 0.3 to 0.5% by weight, 0.1 To 0.3% by weight of the activator, 0.2 to 0.6% by weight of the accelerator, and 0.3 to 0.5% by weight of the antioxidant may be added in sequence and then cooled at a temperature of 20 to 25°C.

The sulfiding agent is a sulfur dispersant having a weight concentration of 50% by weight, sulfur 50% by weight, Naxo (酪素) 2% by weight, diffusion agent NF 1.5% by weight, potassium hydroxide (KOH) 0.1% by weight and water 46.4% by weight. The active agent may be composed of a zinc oxide dispersion having a weight concentration of 50% by weight.

The accelerator may be at least one selected from an accelerator ZDC dispersion having a weight concentration of 50% by weight or an accelerator DM dispersion having a weight concentration of 40% by weight, and the anti-aging agent is an antioxidant having a weight concentration of 50% by weight. At least any one or more selected from the MB dispersion or the anti-aging agent DNP dispersion having a weight concentration of 50% by weight may be used.

The antifoaming agent may be a conventional material known in the art. For example, Agitan 295 (Munzing, Germany) may be used as the antifoaming agent.

The curing agent may be used by mixing a curing agent resin and a curing accelerator, and a modified aliphatic polyamine may be used as the curing agent resin, and 2,4,6-tridimethylaminomethyl phenol may be used as the curing accelerator, The curing agent resin and the curing accelerator may be mixed and used in a weight ratio of 5 to 10 parts by weight of the curing agent resin and 1 to 2 parts by weight of the curing accelerator, respectively.

Hereinafter, a preferred embodiment of a method for manufacturing a kitchen or body sponge according to the technical idea of the present invention will be described in more detail with reference to the accompanying drawings.

First, after preparing a foam of various synthetic resin materials that can be used for kitchen or bathroom, such as polyurethane foam and polyethylene foam, it can be used as the foam layer 100.

Next, the foam layer 100 may be immersed in a coating solution composition and then dried to form the coating layer 200 on the inner voids or outer surfaces of the foam layer 100.

The coating liquid composition is 0.1 to 1 parts by weight of copper nanoparticles, 1 to 3 parts by weight of gelite, 1 to 3 parts by weight of shell powder, 0.5 to 1.5 parts by weight of natural plant extract, 10 to 20 parts by weight of self-emulsifying epoxy resin, poly It may be prepared by including 100 to 200 parts by weight of a urethane resin and 1 to 3 parts by weight of a dispersant.

Subsequently, the adhesive composition is applied to the lower portion of the foam layer 100 and dried to form the adhesive layer 300, thereby manufacturing a kitchen or body sponge 10.

The adhesive composition may be prepared by mixing a main material and a curing agent, and the curing agent may be included in a weight ratio of 70 to 80 parts by weight based on 100 parts by weight of the total subject.

In the adhesive composition, the subject is 80 to 120 parts by weight of an acrylic-modified polyester resin, 50 to 100 parts by weight of a solvent, 30 to 50 parts by weight of a bisphenol A type epoxy resin, 5 to 10 parts by weight of polyvinyl alcohol, It can be prepared by mixing in a weight ratio of 1 to 3 parts by weight of sulfurized rubber latex and 0.1 to 0.5 parts by weight of an antifoaming agent.

In addition, the curing agent may be used by mixing a curing agent resin and a curing accelerator, and a modified aliphatic polyamine may be used as the curing agent resin, and 2,4,6-tridimethylaminomethylphenol may be used as the curing accelerator. In addition, the curing agent resin and the curing accelerator may be mixed and used in a weight ratio of 5 to 10 parts by weight of the curing agent resin and 1 to 2 parts by weight of the curing accelerator, respectively.

Hereinafter, preferred embodiments of the kitchen or body sponge according to the technical idea of the present invention will be described in more detail with reference to the accompanying drawings.

<Example>

First, a polyurethane foam used as a kitchen cleaning product was prepared as a foam layer.

Next, the foam layer was immersed in the coating liquid composition and dried to form a coating layer on the inner voids or outer surfaces of the foam layer.

At this time, the coating liquid composition is 0.5 parts by weight of copper nanoparticles, 2 parts by weight of gelite, 2 parts by weight of shell powder, 1 part by weight of natural plant extract, 15 parts by weight of self-emulsifying epoxy resin, 150 parts by weight of polyurethane resin and dispersant 2 It was to be included in a weight ratio of parts by weight.

Subsequently, the adhesive composition was applied to the lower part of the foam layer and dried to form an adhesive layer to prepare a kitchen sponge.

At this time, the adhesive composition was prepared by mixing the main material and the curing agent, the curing agent was mixed in a weight ratio of 75 parts by weight based on the total 100 parts by weight of the main body.

In addition, in the adhesive composition, the subject is 100 parts by weight of acrylic modified polyester resin, 75 parts by weight of solvent, 40 parts by weight of bisphenol A epoxy resin, 7 parts by weight of polyvinyl alcohol, 2 parts by weight of sulfurized rubber latex And it was prepared by mixing in a weight ratio of 0.3 parts by weight of the defoaming agent.

In addition, the curing agent was used by mixing a curing agent resin and a curing accelerator, and a modified aliphatic polyamine was used as the curing agent resin, and 2,4,6-tridimethylaminomethyl phenol was used as the curing accelerator. The curing agent resin and the curing accelerator were mixed and used in a weight ratio of 7 parts by weight of the curing agent resin and 1.5 parts by weight of the curing accelerator, respectively.

<Comparative Example>

After preparing a commercially available kitchen cleaning sponge, it was used as a kitchen cleaning sponge according to a comparative example.

1. Measurement of physical properties

The physical properties of the kitchen sponge prepared according to the above example were measured and the results are shown in [Table 1].

Item Example flash point Not applicable flash point 110~130℃ Exterior Semi-rigid independent foam sponge Solubility Insoluble in water importance 0.1~0.3g/cm ³

Referring to [Table 1], the kitchen sponge prepared according to the above example shows a physicochemical characteristic of a semi-rigid, independent foam sponge with an ignition point of 110 to 130°C and a specific gravity of 0.1 to 0.3 g/cm ³ Able to know.

2. Antibacterial test

Prepare a specimen (5×5mm) of a kitchen sponge prepared as in the above example, and use a paper disk method for the culture solution of Bacillus subtilis, Escherichiacli, and Salmonella typhimurium. Antimicrobial activity was investigated by using, and the results are presented in Table 2 below.

division Antibacterial activity (antibacterial ring of paper disk, diameter mm) Bacillus Coli Salmonella Example 13.1 13.8 12.9

Referring to [Table 2], it was confirmed that the kitchen sponge according to the example had excellent antibacterial activity against all of Bacillus, E. coli, and Salmonera.

3. Detergency test

After adding the same amount of detergent to the sponge for cleaning the kitchen according to the Examples and Comparative Examples, foam was generated, and after rubbing it 10 times with the same force against the dish to which the same amount of contaminants was attached, contamination remaining on the dish The amount of material was observed.

The sensory test for the cleaning properties of the kitchen cleaning sponge according to the above Examples and Comparative Examples was conducted for 30 food related experts and general consumers, and the score and evaluation criteria were 9-point scoring as shown in [Table 3] below. Was used, and the results are shown in Table 4 below.

score Evaluation standard 9 Very good 7 good 5 usually 3 Bad One Very bad

division Cleanability Example 8.5 Comparative example 5.2

Referring to [Table 4], it was confirmed that the sponge for washing the kitchen according to the embodiment had excellent cleaning properties.

In the above, a preferred embodiment of the present invention has been described, but those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. I will be able to. Therefore, it should be understood that the exemplary embodiment described above is illustrative in all respects and is not limiting.

10; sponge
100; Foam layer
200; Coating layer
300; Adhesive layer

Claims (3)

Foam layer;
A coating layer coated on the inner voids or outer surfaces of the foam layer; And
It is located under the foam layer and includes an adhesive layer adhered to the substrate,
The coating layer is formed by immersing the foam layer in a coating solution composition and then drying, the coating solution composition is 0.1 to 1 parts by weight of copper nanoparticles, 1 to 3 parts by weight of gelite, 1 to 3 parts by weight of shell powder, natural plant extract 0.5 to 1.5 parts by weight, 10 to 20 parts by weight of a self-emulsifying epoxy resin, 100 to 200 parts by weight of a polyurethane resin, and 1 to 3 parts by weight of a dispersant.
The method of claim 1,
The adhesive layer is formed by applying an adhesive composition to the lower part of the foam layer and then drying, and the adhesive composition is prepared by mixing a main material and a curing agent, the main material being 80 to 120 parts by weight of an acrylic modified polyester resin, a solvent 50 to 100 parts by weight, 30 to 50 parts by weight of bisphenol A epoxy resin, 5 to 10 parts by weight of polyvinyl alcohol, 1 to 3 parts by weight of sulfurized rubber latex, and 0.1 to 0.5 parts by weight of antifoaming agent are mixed in a weight ratio And the curing agent is prepared by mixing a curing agent resin and a curing accelerator, and a modified aliphatic polyamine is used as the curing agent resin, and 2,4,6-tridimethylaminomethyl phenol is used as the curing accelerator, and the Kitchen or body sponge, characterized in that prepared by mixing in a weight ratio of 5 to 10 parts by weight of a curing agent resin and 1 to 2 parts by weight of a curing accelerator.
To prepare a foam layer made of a foam of a synthetic resin material,
The foam layer is immersed in the coating liquid composition and then dried to form a coating layer on the inner voids or outer surfaces of the foam layer,
After applying the adhesive composition to the lower portion of the foam layer and drying to form an adhesive layer,
The coating liquid composition is 0.1 to 1 parts by weight of copper nanoparticles, 1 to 3 parts by weight of gelite, 1 to 3 parts by weight of shell powder, 0.5 to 1.5 parts by weight of natural plant extract, 10 to 20 parts by weight of self-emulsifying epoxy resin, poly It is prepared by containing in a weight ratio of 100 to 200 parts by weight of a urethane resin and 1 to 3 parts by weight of a dispersant,
The adhesive composition is prepared by mixing a main material and a curing agent, and the curing agent is included in a weight ratio of 70 to 80 parts by weight based on the total 100 parts by weight of the subject, and the subject is 80 to 120 parts by weight of an acrylic modified polyester resin, 50 to 100 parts by weight, 30 to 50 parts by weight of bisphenol A type epoxy resin, 5 to 10 parts by weight of polyvinyl alcohol, 1 to 3 parts by weight of sulfurized rubber latex, and 0.1 to 0.5 parts by weight of an antifoaming agent. And the curing agent is prepared by mixing a curing agent resin and a curing accelerator, and a modified aliphatic polyamine is used as the curing agent resin, and 2,4,6-tridimethylaminomethyl phenol is used as the curing accelerator, and the A method for producing a sponge for kitchen or body, characterized in that it is mixed and used in a weight ratio of 5 to 10 parts by weight of a curing agent resin and 1 to 2 parts by weight of a curing accelerator.

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