KR20210064560A - anti-bacterial paper using fig and manufacturing method thereof - Google Patents

Abstract

The present invention relates to antibacterial paper using Ficus carica and a manufacturing method thereof and, more specifically, to antibacterial paper using Ficus carica, which is harmless to a human body and provides excellent antibacterial activity, and a manufacturing method of the antibacterial paper. According to the present invention, the antibacterial paper using Ficus carica contains Ficus carica pulp or a Ficus carica extract acquired from Ficus carica. Moreover, the manufacturing method comprises a beating step of mixing Ficus carica pulp with paper pulp and beating the mixture to acquire a pulp mixture, and a base paper manufacturing step of forming base paper from the pulp mixture and removing moisture to acquire paper.

Description

Anti-bacterial paper using fig tree and its manufacturing method {anti-bacterial paper using fig and manufacturing method thereof}

The present invention relates to an antibacterial paper using figs and a method for manufacturing the same, and more particularly, to an antibacterial paper using figs, which is harmless to the human body and provides excellent antibacterial activity, and a method for manufacturing the same.

Paper is a product made by dissolving plant fibers in water to make them coagulate in a flat and thin manner, then draining water and drying them. Paper is largely classified into Korean paper and Western paper.

The main raw material of yangji is wood pulp, and Korean paper was manufactured by human power using bast fibers such as mulberry, hemp, and hemp as raw materials, but in recent years, wood pulp is mixed and made using a machine. Paper is manufactured using pulp made by mechanically or chemically treating such wood or other plants as a raw material.

The manufacturing process of paper may vary slightly depending on the type of paper, but in general, it goes through a beating (叩解) process of splitting and cutting the fibers of the pulp. , pigments, dyes, and other additives are added to further improve the properties of the paper.

And after the beating process, papermaking is made through a papermaking machine, and paper is manufactured through a processing process of pressing, dehydrating, and drying the papermaking.

In addition, various types of paper are produced by changing or adding some during the manufacturing process of paper. There are various types of paper, such as paper, newsprint, printing paper, writing paper, calligraphy paper, information paper, packaging paper, sanitary thin paper, hybrid paper, corrugated paper, white paper, and wallpaper.

In the case of products that inevitably come into frequent contact with the human body during use, such as wallpaper or various books that are attached to the wall of a building, among the papers, bacteria harmful to the human body live on the surface or inside, as well as various harmful substances are discharged. Therefore, if you neglect to maintain cleanliness, the health of the user is harmed, and even when used, there is a special demand for a functional product that can prevent the odor due to the propagation of bacteria.

Korean Patent Registration No. 10-1769000 discloses an antibacterial coating composition and a method for manufacturing antibacterial paper using the same.

The disclosed manufacturing method is intended to increase the stability of the human body by using an inorganic antibacterial composition, but such an inorganic antibacterial composition has low antibacterial activity and thus its effectiveness is poor.

Republic of Korea Patent Registration No. 10-1769000

An object of the present invention is to provide an antibacterial paper that is environmentally friendly, harmless to the human body, and has excellent antibacterial power by using a fig tree in order to improve the above problems.

Antibacterial paper using fig tree of the present invention for achieving the above object contains fig pulp or fig extract obtained from fig tree.

In addition, it further contains an extract of Geranium wilfordii.

And the method for producing an antibacterial paper using a fig tree of the present invention for achieving the above object comprises: a beating step of mixing fig tree pulp with paper pulp and then beating to obtain a pulp mixture; and a base paper manufacturing step of forming paper paper from the pulp mixture and then removing moisture to obtain a base paper.

In addition, the method for producing an antibacterial paper using a fig tree of the present invention for achieving the above object includes a beating step of beating paper pulp; an addition step of adding a fig extract to the beating pulp after the beating step; and a base paper manufacturing step of forming paper paper from the paper pulp to which the fig extract is added, and then removing moisture to obtain a base paper.

In addition, the method for producing an antibacterial paper using a fig tree of the present invention for achieving the above object includes a paper preparation step of preparing a base paper; an application step of applying a fig extract to the base paper; and a drying step of drying the base paper.

As described above, the paper of the present invention is environmentally friendly, harmless to the human body, and has excellent antibacterial properties by manufacturing paper using figs.

The paper of the present invention may be used as various types of paper such as Korean paper, Japanese paper, printing paper, writing paper, calligraphy paper, packaging paper, corrugated paper, wallpaper, and the like.

Hereinafter, an antibacterial paper using figs according to a preferred embodiment of the present invention and a manufacturing method thereof will be described in detail.

The antibacterial feeder according to an embodiment of the present invention contains fig pulp or fig extract.

Fig pulp can be obtained through a conventional pulping process from the bark of the fig tree. And the fig extract can be obtained by adding an extraction solvent to any one or more of leaves, branches, and stems of fig trees.

The fig tree ( Ficus carica ) is a dicotyledonous plant, a deciduous shrub of the Nettle family, the Morus family. The leaves are alternate, broad ovate, 10-20 cm long, and deeply divided into 3-5. Forked fragments have dull tips, saw teeth on the edge, and 5 veins.

It has a rough surface and hairs on the back, and a white milky milky liquid comes out when you cut it. From spring to summer, spikes of flowers like fruit hang on the leaf axils, and there are many small flowers inside. It is called a fig tree because the flowers are not visible from the outside. The female flower has 3 inflorescences and is a bivalent flower, but the male tree is not visible.

The fruit is a flower stalk grown, in the shape of an upside down egg, 5-8cm long, ripens in black purple or yellow-green in August-October, and is eaten raw or made into jam. The fruit is used as a laxative, and in folklore, the latex is used as a remedy for hemorrhoids. There are three varieties of figs: summer fruit varieties, autumn fruit varieties, and summer and winter varieties.

The antibacterial feeder of the present invention may contain 0.1 to 80% by weight of fig pulp or fig extract.

The antibacterial paper of the present invention can be used in various types of paper such as Korean paper, Japanese paper, printing paper, writing paper, calligraphy paper, packaging paper, corrugated paper, wallpaper, and the like.

On the other hand, the antibacterial tributary according to another example of the present invention may further contain the extract of the three leaves. In this case, the fig pulp or fig extract may contain 10 to 30 parts by weight of the extract based on 100 parts by weight of the extract.

Geranium wilfordii ( Geranium wilfordii ) is a dicotyledonous perennial herb in the family Jusonidae, grown in mountainous areas. It is 40-80 cm high and has thick nodes and long branches that stretch out obliquely. The leaves are opposite and deeply divided into 3, and there are lying hairs on the surface and the veins on the back side. The forked pieces are lanceolate-like, have a sharp tip, and have irregularly recessed sawtooths on the edge. The stipules are narrow and fall apart from each other.

This extract can be extracted in various ways. As an example, after adding 2 to 20 times the weight ratio of the extraction solvent to the leaves of the three-leaf juniper, hot water extraction, cold or warm chim extraction, etc. may be used at 10 to 150° C. for 1 to 40 hours. In addition, reflux cooling extraction, ultrasonic extraction, etc. may be used.

In addition, as well as the above-described extraction method, it includes an extract that has undergone a conventional purification process. For example, the active fraction obtained through various purification methods additionally performed, such as separation using an ultrafiltration membrane having a constant molecular weight cut-off value, separation by various chromatography, etc. may also be included in the extract.

At least one selected from water, a lower alcohol having 1 to 4 carbon atoms, a polyhydric alcohol, or a mixture thereof may be used as the extraction solvent. As the lower alcohol having 1 to 4 carbon atoms, methanol, ethanol, etc. may be used, and polyhydric alcohol such as butylene glycol, propylene glycol, pentylene glycol, glycerol, and the like may be used. And as the mixture, a mixture of water and a lower alcohol, a mixture of water and a polyhydric alcohol, a mixture of a lower alcohol and a polyhydric alcohol, or a mixture of water and a lower alcohol and a polyhydric alcohol may be used.

The three leaf extract can greatly improve the antibacterial activity and provide a branch with more excellent antibacterial activity.

Hereinafter, an example of a method for producing the above-described antibacterial paper will be described.

The method for producing an antibacterial paper according to an embodiment of the present invention includes a beating step of mixing fig tree pulp with paper pulp and beating to obtain a pulp mixture, and forming paper paper from the pulp mixture and then removing moisture to obtain a base paper Including the step of manufacturing the base paper.

First, fig tree pulp is mixed with paper pulp and then beaten to obtain a pulp mixture.

As the paper-making pulp, conventional vegetable pulp can be used. As examples of such paper pulp, wood pulp, mulberry pulp, abaca pulp, and old paper pulp can be freely selected according to the purpose. Also, mixed pulps combined with each other may be used as needed. In general, there is no restriction on the type of pulp for packaging paper, but wood pulp for printing paper and old paper pulp for packaging boxes are suitable, abaca pulp is suitable for yarn fabric paper, and mulberry pulp for Korean paper or Japanese paper. is suitable

Fig tree pulp is obtained from the bark of the trunk or branches of the fig tree. In particular, it is obtained from the inner skin.

In order to obtain fig tree pulp from the bark of a fig tree, it can be obtained by washing the bark of the fig tree and then filtering it through primary and secondary self-fertilization.

Peel the fig tree and wash the peeled skin with water. And the first self-boiling is a process of cutting the washed fig tree bark to a certain size and boiling it with sodium hydroxide in water at 100° C. for 4 to 5 hours. At this time, the fibres of the fig tree bark are released to become flexible and at the same time oil and ash are removed and bleached by sodium hydroxide. The second self-boiling is a process of boiling the fig tree bark, which has undergone the first self-restraint, in water at 100° C. for 2 to 3 hours. Soft fig tree pulp can be obtained through secondary self-restraint. After the second fermentation, fig tree pulp is filtered through a sieve or sieve to finally obtain softened fig tree pulp.

Fig tree pulp obtained from fig tree bark exhibits excellent antibacterial properties and is harmless to the human body. Paper made from a pulp mixture of fig wood chips and pulp also exhibits antibacterial properties. In the conventional coating method, the antibacterial durability was not good as the coating was easily peeled off or volatilized quickly by the external environment as the surface was coated with an antibacterial material, but in the present invention, the antibacterial durability is improved by adding an antibacterial material to the pulp itself. strong.

When the paper pulp and fig tree pulp are ready, the paper pulp and fig tree pulp are mixed. For example, 50 to 150 parts by weight of fig tree pulp may be mixed with respect to 100 parts by weight of pulp for papermaking.

Paper pulp and fig tree pulp are mixed and refined.

Beating is a process in which paper pulp and fig tree pulp are mixed and then chopped and cut to form a pulp mixture. Since the pulp is not suitable for making paper as it is, it is dissolved in water to make the required paper type. The machine used for beating is called a beater.

The beating machine is generally beaten by cutting the pulp mixed with water, slicing it horizontally, or pressing and crushing it while rotating it with a rotating roller made of metal or stone with many teeth in the tank. The pulp is beaten as it passes between the interlocking rollers.

Paper pulp and fig tree pulp are put into the beater, and the beater is operated to beat. In the beater, paper pulp and fig tree pulp are cut short and crushed. The paper pulp and fig tree pulp that have been beaten in this way are uniformly mixed and exist as a pulp mixture in the form of a slush.

At this time, various known additives may be added to the pulp mixture. Various types of additives may be applied, such as a cooking agent, a bleaching agent, a size agent, a surface lipid improver, an intellectual strength enhancer, a wet strength agent, a dispersing agent, and an antifoaming agent. In addition, as an additive, the extract may be used. In this case, based on 100 parts by weight of the fig pulp, 10 to 30 parts by weight of the extract may be added.

Next, a base paper manufacturing step of forming a paper paper from the pulp mixture and then removing moisture to obtain a sheet-shaped base paper is performed.

The base paper manufacturing step consists of a process of scooping out solids from the pulp mixture using a net to form papermaking, then pressing to squeeze out water and drying the paper. The paper machine for mass production is composed of a wire part that forms papermaking, a press part that compresses and dehydrates papermaking, and a dryer part that dries the papermaking. carried out as a continuous process. The base paper is finally obtained through papermaking, pressing, dehydration, and drying processes. The base paper itself thus obtained is an antibacterial paper of the present invention. If necessary, various processing treatments such as coating, modification, absorption, lamination, coating, and cutting may be additionally performed on the base paper.

On the other hand, the method for producing an antibacterial paperboard according to another embodiment of the present invention includes a beating step of beating paper pulp, an addition step of adding a fig extract to the beating paper pulp after the beating step, and the fig extract added above. and a base paper manufacturing step of forming paper paper from pulp for papermaking and then removing moisture to obtain a base paper.

First, the paper pulp is beaten in the beating step. It is beaten using the beater described above.

Put paper pulp into the beater, and operate the beater to beat it. In the beater, the paper pulp is cut short and crushed. It exists in the form of a paper pulp slush that has been beaten as described above.

Next, an addition step of adding a fig extract to the beating paper pulp is performed. 50 to 150 parts by weight of the fig extract may be added based on 100 parts by weight of the paper pulp.

The fig extract can be extracted by applying the same method as the extraction method of the above-mentioned three-leaf jussoni extract. For example, after adding 2 to 20 times the weight ratio of the extraction solvent to the leaves, stems, or branches of the fig tree, hot water extraction, cold or warm chim extraction may be performed at 10 to 150° C. for 1 to 40 hours. And as an extraction solvent, at least one selected from water, a lower alcohol having 1 to 4 carbon atoms, a polyhydric alcohol, or a mixture thereof may be used. As the lower alcohol having 1 to 4 carbon atoms, methanol, ethanol, etc. may be used, and polyhydric alcohol such as butylene glycol, propylene glycol, pentylene glycol, glycerol, and the like may be used. And as the mixture, a mixture of water and a lower alcohol, a mixture of water and a polyhydric alcohol, a mixture of a lower alcohol and a polyhydric alcohol, or a mixture of water and a lower alcohol and a polyhydric alcohol may be used.

Next, a papermaking step of forming papermaking paper from the pulp for papermaking to which the fig extract is added and then removing moisture to obtain a base paper is performed.

The base paper manufacturing step consists of a process of scooping out solids from the paper pulp using a net to form papermaking, then pressing to squeeze out water and drying the paper. In this way, the base paper is finally obtained through papermaking, pressing, dehydration, and drying processes. The base paper itself thus obtained is an antibacterial paper of the present invention. Of course, various processing treatments such as coating, modification, absorption, lamination, coating, and cutting may be additionally performed on the base paper as needed.

And in the above-described addition step, the extract may be further added. For example, 50 to 150 parts by weight of a fig extract and 10 to 30 parts by weight of a three-leaf extract may be added with respect to 100 parts by weight of pulp for papermaking.

On the other hand, the method for manufacturing an antibacterial paper according to another example of the present invention includes a base paper preparation step of preparing a base paper, an application step of applying a fig extract to the base paper, and a drying step of drying the base paper.

First, prepare a base paper. The base paper can be prepared by purchasing a commercialized product.

Base paper refers to a paper produced by a conventional method and manufactured through a paper machine. Base paper may be provided in various ways depending on the type of pulp, such as Korean paper, Japanese paper, newsprint, printing paper, writing paper, calligraphy paper, information paper, packaging paper, sanitary thin paper, hybrid paper, corrugated paper, white paper, and the like.

Next, apply the fig extract to the base paper.

Fig extract is harmless to the human body and has excellent antibacterial properties. Fig extract can be applied in a variety of ways. For example, a coating method by spraying or a coating method by a brush can be used. The fig extract is evenly applied to the surface of the base paper. The fig extract applied to the base paper is absorbed and penetrated into the base paper or forms a coating film on the surface.

Next, the base paper coated with the fig extract is dried.

The drying method may be natural drying, cold air drying, or hot air drying. When drying and completion in this way, it is possible to obtain an antibacterial paper impregnated with fig extract or formed with a coating film.

In addition, when applying the above-mentioned fig extract, it can be applied by mixing the extract with three leaves. For example, a mixed extract obtained by mixing 10 to 30 parts by weight of the extract of three leaves with respect to 100 parts by weight of the fig extract is applied to the base paper.

Hereinafter, the present invention will be described by way of examples. However, the following examples are provided to illustrate the present invention in detail, and the scope of the present invention is not limited to the following examples.

(Example 1)

The inner bark of a fig tree washed with water was boiled in a sodium hydroxide solution with a concentration of 5% (w/w) for 2 hours, then boiled in water for 2 hours and 30 minutes, and then filtered to obtain fig tree pulp. Then, 100 parts by weight of fig pulp was mixed with 100 parts by weight of mulberry pulp, put in a beating machine, and the pulp mixture formed by beating was made using a paper machine, pressed, dehydrated and dried to prepare sheet-shaped paper.

(Example 2)

Paper was prepared in the same manner as in Example 1, but after adding 20 parts by weight of the extract to 100 parts by weight of the pulp mixture, papermaking, compression, and dehydration drying were performed using a paper machine to prepare paper.

The three-leaf extract was extracted by finely cutting 200 g of three-leaf leaf extract, adding 2 liters of water, heating it at 100° C. for 4 hours, and filtering out the solids.

(Example 3)

After the mulberry pulp was put in a beating machine and beaten, papermaking, pressing, and dehydration drying were performed using a paper machine to prepare a sheet-like paper. And using a spray, the fig extract was evenly applied to the surface of the paper, and then dried naturally in the shade for 24 hours.

The fig extract was extracted by sieving 200 g of fig stems, adding 2 liters of water, heating at 100° C. for 4 hours, and filtering out the solids.

(Comparative example)

100 parts by weight of mulberry pulp was placed in a beater and beaten, and then paper made, compressed, and dehydrated and dried using a paper machine to prepare a sheet-like paper.

<Antibacterial test>

In order to confirm the degree of antibacterial activity of the paper prepared in Examples 1 to 3 and Comparative Example, Staphylococcus aureus and Staphylococcus epidermidis using a disc-diffusion method using a paper disc. growth inhibitory activity was measured.

After culturing by streaking the strains on a plate medium, each strain was taken with platinum ear, inoculated into 10 ml medium, and cultured for 24 hours to activate. Using an ELISA reader, the absorbance at 595 nm was adjusted to be 0.08 to 0.1 (McFarland standard 0.5), and 1.5×10 ⁸ cfu/ml bacteria were used for the experiment.

Plate medium for antibacterial test was prepared by sterilizing 0.5% agar medium at 121°C for 15 minutes, cooling to about 60°C, and dispensing about 20ml into sterilized Petri dishes. After applying the bacteria evenly to the plate medium, put a paper sterilized paper disc (8mm in diameter) on it, and after soaking the sample in dimethyl sulfoxide, place it on the paper disc and incubator for 24 hours. After culturing for time, the size of the growth inhibition ring (Clean Zone) was measured. Table 1 below shows the results.

division Growth inhibition ring size (mm) Example 1 Example 2 Example 3 comparative example Staphylococcus aureus 9 12 10 One Staphylococcus epidermis 7 9 7 0.5

As a result of the experiment, it was confirmed that the papers of Examples 1 to 3 had excellent antibacterial activity against both Staphylococcus aureus and Staphylococcus epidermidis. In particular, it was confirmed that the case of Example 2 containing the extract of three-leaf mouse hand had a strong antibacterial activity.

As such, the branch using the fig of the present invention has excellent antibacterial properties, thereby suppressing the occurrence of mold and providing insect repellent effect.

Claims (5)

An antibacterial paper using a fig tree, characterized in that it contains fig pulp or fig extract obtained from a fig tree. The antibacterial feeder using a fig tree according to claim 1, further comprising an extract of Geranium wilfordii. a beating step of mixing fig tree pulp with paper pulp and then beating to obtain a pulp mixture;
A method for producing an antibacterial paper using a fig tree, comprising: forming paper from the pulp mixture and then removing moisture to obtain a base paper. a beating step of beating the paper pulp;
an addition step of adding a fig extract to the beating paper pulp after the beating step;
A method for producing an antibacterial paper using a fig tree, comprising: forming paper paper from the paper pulp to which the fig extract is added, and then removing moisture to obtain a base paper. a paper preparation step of preparing a base paper;
an application step of applying a fig extract to the base paper;
A method for producing an antibacterial paper using a fig, comprising: a drying step of drying the base paper.