KR102584499B1 - Moisture-proof wrapping paper and its manufacturing method - Google Patents

Abstract

The present invention provides a moisture-proof packaging paper including a base paper and a moisture-proof coating layer coated on the base paper.

Description

Moisture-proof wrapping paper and its manufacturing method

The present invention relates to moisture-proof packaging paper and its manufacturing method.

Moisture-proof packaging is usually used to make bags that can block out moisture from moisture, such as sugar, flour, cement, feed chemicals, paper flexible packaging, etc. For example, it is called moisture-proof base paper because it is made by laminating paper-based base paper and synthetic resin film, and it is also called double base paper because it is produced by double bonding base paper and synthetic resin film.

Conventional moisture-proof paper used as a base paper uses kraft paper as the base paper, and the inner surface of the kraft paper is laminated with polyethylene or polypropylene film, or only the upper part of the film and paper is glued in a dot manner. The most widely used paper currently is paper. Only the upper part of the film and the base paper is adhered, making it easy to separate the film and the base paper during recycling. However, the current single-ply wrapping paper is coated entirely with LDPE, which is not recyclable, making it difficult to separate the base paper and the coated paper, making it difficult to recycle. There is a problem that it cannot be used and pollutes the environment. In addition, conventional moisture-proof packaging paper or moisture-proof paper does not have excellent moisture-proof properties due to the hygroscopicity of the inorganic filler used, and it is difficult to store it in a place that does not absorb moisture.

Patent Document 1: Republic of Korea Patent 10-1037910

The present invention was devised to solve the above problems, and the purpose of the present invention is to provide moisture-proof packaging paper that has excellent moisture-proof properties and exhibits high durability and antibacterial properties.

The object of the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, the present invention

It provides a moisture-proof packaging paper including a base paper and a moisture-proof coating layer coated on the base paper.

In addition, the moisture-proof packaging includes a base paper, a non-woven fabric formed on one side of the base paper, an adhesive layer formed on one side of the non-woven fabric, and a moisture-proof coating layer formed on one side of the adhesive layer,

The base material,

Pre-treating kelp with a hydrochloric acid solution at a concentration of 8-12% by weight and bleaching it with hydrogen peroxide to produce kelp pulp;

Pre-treating bamboo pulp with an endoglucanase solution at a concentration of 1-5% by weight and treating it with a high-pressure homogenizer at a pressure of 800-1000 bar to produce cellulose fibers;

dissociating pulp raw materials including 18-22 parts by weight of kraft pulp, 8-12 parts by weight of kelp pulp, 3-7 parts by weight of cellulose fibers, and 63-67 parts by weight of water into a dissociator;

Beating the dissociated pulp raw material using a beater and removing foreign substances from the beaten pulp raw material using a sorting machine;

Screening after adding 0.5-4 parts by weight of antibacterial extract and 63-67 parts by weight of water to the pulp raw material from which foreign substances have been removed; and

It is manufactured by performing the steps of producing a wetland using screened pulp raw materials, pressing and drying the wetland,

The antibacterial extract includes 28-32 parts by weight of honeysuckle extract, 28-32 parts by weight of propolis extract, 18-22 parts by weight of green tea extract, and 18-22 parts by weight of persimmon leaf extract,

The nonwoven fabric,

70-74 parts by weight of a resin mixed with polyethylene terephthalate polymer and polyacrylonitrile polymer at a weight ratio of 1:1, 3-7 parts by weight of carbon nanofibers, 2-6 parts by weight of insect repellent composition, 2-6 parts by weight of copper powder. parts by weight, 1-5 parts by weight of calcium carbonate, 0.1-2 parts by weight of 2,2-methylenebis (6-tert-butyl-4-methylphenol), 0.1-2 parts by weight of sodium chloride, and 0.1 parts by weight of hindered amine. Processing into pellets using a pellet composition containing -2 parts by weight;

Manufacturing a first yarn using the pellets;

Stretching copper fibers to produce copper microfibers, and twisting 2-4 strands of the copper microfibers to produce copper threads through plied yarns;

The copper yarn was mixed with 46-50 parts by weight of polylactic acid (PLA), 46-50 parts by weight of poly(butylene adipate-co-terephthalate) (PBAT), and 1 weight of an epoxy-based crosslinking agent. manufacturing a second yarn by plying a composition containing 1 part by weight of copper powder with a particle size of 30-50 nm with regular yarn produced by spinning at a weight ratio of 1:5-9;

manufacturing a composite yarn by plying the first yarn and the second yarn; and

It is manufactured by performing the step of manufacturing a nonwoven fabric using the composite yarn,

The insect repellent composition includes 68-72 parts by weight of polybutadiene polymer resin grafted with permetrin, cinnamon bark extract, chestnut bark extract, thyme extract, clove extract, and peppermint extract in a weight ratio of 1:1:1:1:1. Contains 27-31 parts by weight of insect repellent extract and 0.3-3 parts by weight of sodium dodecyl sulfate mixed with,

The adhesive layer is,

35-39 parts by weight of acrylic polyurethane resin, 26-30 parts by weight of polylactic acid (PLA) with a weight average molecular weight of 10,000-20,000, 11-15 parts by weight of lactic acid oligomer with a weight average molecular weight of 3,000-4,000, 4-8 parts by weight of carboxymethyl cellulose Forming an adhesive layer containing 3-7 parts by weight of polybutylene succinate-co-adipate (PBSA), 6-10 parts by weight of mineral oil, and 1-5 parts by weight of plant extract. It is formed from a composition for

The acrylic polyurethane resin is prepared by mixing polytetramethylene glycol (PTMG), dimethylol propionic acid (DMPA), N-methylpinolidone (NMP) solution, and isophorone diisocyanate (IPDI). Prepare a prepolymer, neutralize the prepolymer with triethylamine (TEA) diluted in N-methylpinolidone (NMP) solution, add distilled water to the neutralized prepolymer to disperse it, and then use a chain extender. Water-dispersed polyurethane was prepared by adding ethylene diamine (EDA), and methylmethacrylate (MMA) and 2,2'-azobisisobutyronitrile (AIBN) were added to the water-dispersed polyurethane. ) is manufactured by adding and then stirring,

The plant extract is a mixture of mulberry extract, fir extract, and mulberry extract in a weight ratio of 1:1:1,

The moisture-proof coating layer is,

28-32 parts by weight of acrylic polymer resin, 13-17 parts by weight of polysiloxane represented by Formula 1 below, 8-12 parts by weight of polysiloxane represented by Formula 2 below, 8-12 parts by weight of acrylic mixture, 8-12 parts by weight of inorganic filler , 4-8 parts by weight of magnesium hydroxide carbonate, 0.8-1.2 parts by weight of cellulose-based thickener, 0.3-0.7 parts by weight of rosin ester-based tackifier, 0.3-0.7 parts by weight of 3-(methacryloxypropyl)trimethoxysilane, and water. It is formed of a composition for forming a moisture-proof coating layer containing 15-19 parts by weight,

The acrylic polymer resin has a weight average molecular weight of 80,000-100,000 and contains 28-32 parts by weight of methyl methacrylate monomer units, 28-32 parts by weight of 2-ethylhexyl acrylate monomer units, and 38-42 parts by weight of acrylic acid monomer units. It is a combination,

The acrylic mixture is a mixture of vinyl acrylate, 2-ethylhexyl acrylate, butyl acrylate, and ethyl acrylate in a weight ratio of 3:3:2:2,

The inorganic filler is characterized in that it contains 33-37 parts by weight of tourmaline powder, 28-32 parts by weight of illite powder, 23-27 parts by weight of amphibole powder, and 8-12 parts by weight of biotite powder.

<Formula 1>

(In Formula 1, p is 30-200, q is 10-100, and r is 5-50.)

<Formula 2>

(In Formula 2, a is 30-200, b is 5-50, and c is 5-50.)

In addition, the moisture-proof packaging is characterized in that it includes a non-woven fabric, an adhesive layer, and a moisture-proof coating layer on both sides of the base paper.

The moisture-proof packaging paper according to the present invention has excellent moisture-proof properties and exhibits antibacterial properties as well as high durability.

Hereinafter, various embodiments will be described in more detail. The embodiments described herein may be modified in various ways. Specific embodiments may be described in detail in the detailed description. However, the specific embodiments disclosed are only intended to facilitate understanding of the various embodiments. Accordingly, the technical idea is not limited to the specific embodiments disclosed, and should be understood to include all equivalents or substitutes included in the spirit and technical scope of the invention.

Terms containing ordinal numbers, such as primary, secondary, first, second, etc., may be used to describe various components, but these components are not limited by the above-mentioned terms. The above-mentioned terms are used only for the purpose of distinguishing one component from another.

In this specification, terms such as 'include' or 'have' are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof. When a component is said to be 'connected' or 'connected' to another component, it is understood that it may be directly connected or connected to the other component, but that other components may exist in between. It should be. On the other hand, when a component is mentioned as being 'directly connected' or 'directly connected' to another component, it should be understood that there are no other components in between.

In addition, when describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is abbreviated or omitted.

This invention

It provides a moisture-proof packaging paper including a base paper and a moisture-proof coating layer coated on the base paper.

Hereinafter, the moisture-proof packaging paper according to the present invention will be described in detail.

The moisture-proof packaging preferably includes a base paper, a non-woven fabric formed on one side of the base paper, an adhesive layer formed on one side of the non-woven fabric, and a moisture-proof coating layer formed on one side of the adhesive layer. In addition, the moisture-proof packaging is more preferably one in which non-woven fabric is formed on both sides of the base paper, an adhesive layer is formed on one side of each non-woven fabric formed on both sides, and a moisture-proof coating layer is formed on one side of each adhesive layer formed on both sides.

The base paper is characterized in that it is manufactured using kraft pulp, pulp made from kelp, and cellulose fiber made from bamboo. Additionally, the base paper contains an antibacterial extract.

Preferably, the base paper includes the steps of pre-treating kelp with a hydrochloric acid solution at a concentration of 8-12% by weight and bleaching it with hydrogen peroxide to produce kelp pulp; Pre-treating bamboo pulp with an endoglucanase solution at a concentration of 1-5% by weight and treating it with a high-pressure homogenizer at a pressure of 800-1000 bar to produce cellulose fibers; dissociating pulp raw materials including 18-22 parts by weight of kraft pulp, 8-12 parts by weight of kelp pulp, 3-7 parts by weight of cellulose fibers, and 63-67 parts by weight of water into a dissociator; Beating the dissociated pulp raw material using a beater and removing foreign substances from the beaten pulp raw material using a sorting machine; Screening after adding 0.5-4 parts by weight of antibacterial extract and 63-67 parts by weight of water to the pulp raw material from which foreign substances have been removed; and manufacturing a wetland using screened pulp raw materials, and compressing and drying the wetland.

Kraft pulp is a pulp obtained by treating wood using an alkaline agent containing sodium hydroxide and sodium sulfide as main ingredients.

The antibacterial extract preferably comprises 28-32 parts by weight of Sagittarius root extract, 28-32 parts by weight of propolis extract, 18-22 parts by weight of green tea extract, and 18-22 parts by weight of persimmon leaf extract, and 29-31 parts by weight of Aspergillus root extract. parts, 29-31 parts by weight of propolis extract, 19-21 parts by weight of green tea extract, and 19-21 parts by weight of persimmon leaf extract.

Ganoderma sinense is a one-year-old plant with a kidney-shaped to circular cap and a long, straight jet-black stem. It is distributed in China, Korea, Japan, etc. and mainly occurs on coniferous tree stumps. Jayoungji is an herbal medicine used in oriental medicine in combination with other oriental medicine to treat arteriosclerosis, hypertension, stroke, angina, and various cancers. In particular, it has nourishing and tonic effects, and is used for medicinal purposes such as dry brain, anti-inflammatory, diuretic, and stomach upset. In the present invention, an antibacterial function is imparted to special paper by applying a water-soluble antibacterial extract to the extract of apricot chinensis.

Propolis is collected by bees from the sap of trees, the bark of fruit trees, and the stamens of flowers. It is a substance used for self-defense or repair of bee hives. It is mainly resin, beeswax, essential oil, pollen, and various organic and mineral substances. It is reported to have anti-oxidant, anti-bacterial, anti-fungal, anti-viral, anti-tumor, and wound-healing effects. Various organic and mineral substances in propolis contain large amounts of flavonoids, and these flavonoids are reported to have strong antibacterial effects. In the present invention, propolis extract is applied as a water-soluble antibacterial extract to provide antibacterial function to base paper and packaging paper.

Green tea is known to have the function of supplying vitamins and mineral nutrients and satisfying taste and aroma preferences. The main component of green tea for its astringent taste is catechin, a polyphenol component. Depending on its derivative, catechin is divided into epicatechin, epigallocatechin, epicatechin gallate, and epigallocatechin. It can be classified into gallate (Epigallocatechin gallate), etc. Catechin content amounts to about 8-20% of dried green tea, and is water-soluble, so it dissolves into water when boiled with water. Meanwhile, green tea contains various bioactive substances. In particular, catechins have the function of suppressing the formation of blood clots and preventing arteriosclerosis by reducing LDL cholesterol in the blood, suppressing the production of lipid peroxides, and preventing fat oxidation. It has been discovered that it is also used as a natural antioxidant. In addition, green tea is known to not only prevent aging, but also inhibit the growth of cancer and have anti-carcinogenic properties, as well as having an anti-toxin effect that neutralizes toxins, preventing food poisoning. In the present invention, green tea extract is applied as a water-soluble antibacterial extract to impart antibacterial function to base paper and packaging paper.

Persimmon leaves are the leaves of the persimmon tree (Diospysos kaki). The persimmon tree is a fruit tree unique to East Asia and is native to Korea, China, and Japan. 100g of persimmon leaves contain about 200mg of vitamin C, which is 2 to 3 times more than that of tangerines. Vitamin C from persimmon leaf extract has the property of resisting heat well, so it is relatively safe to dissolve in water and has high effectiveness. It has no toxicity or side effects, has a diuretic effect, and is recognized as being excellent for kidney disease and heart disease by stabilizing blood pressure. In addition, it contains a lot of carotene, which has the effect of vitamin A, improves disease resistance, has an excellent effect in preventing adult diseases, prevents hangovers and relieves hangovers, has a hemostatic effect, has an effect of stopping diarrhea and upset stomach, has an anti-aging effect, has a skin beauty effect, and has a cold effect. It is good for prevention and brain cell health, and is good for pregnant women and menstruation. The tannin contained in persimmon leaves reduces swelling caused by edema and detoxifies toxic substances such as lead, arsenic, and mercury. In the present invention, persimmon leaf extract is applied as a water-soluble antibacterial extract to impart antibacterial function to base paper and packaging paper.

To specifically describe the method of manufacturing the base paper,

First, kelp is pretreated with a hydrochloric acid solution with a concentration of 8-12% by weight and bleached with hydrogen peroxide to produce kelp pulp.

To manufacture pulp, which is the raw material for base paper, kelp pulp is manufactured using kelp.

The kelp can be prepared by washing. The prepared kelp is pretreated by immersing it in a hydrochloric acid solution with a concentration of 8-12% by weight. Impurities such as mucilage contained in the kelp are removed by pretreatment with a hydrochloric acid solution.

Afterwards, kelp pulp is produced by bleaching with hydrogen peroxide.

Next, bamboo pulp is pretreated with an endoglucanase solution at a concentration of 1-5% by weight, and treated with a high-pressure homogenizer with a pressure of 800-1000 bar to produce cellulose fiber.

To manufacture the fiber that becomes the raw material for base paper, cellulose fiber is manufactured using bamboo pulp.

The endoglucanase is a cellulose-decomposing enzyme, and bamboo pulp is pretreated using it. After pretreatment, it is treated with a high-pressure homogenizer, and cellulose fibers can be produced by processing 5-6 times.

Next, pulp raw materials including 18-22 parts by weight of kraft pulp, 8-12 parts by weight of kelp pulp, and 3-7 parts by weight of cellulose fibers and 63-67 parts by weight of ALC ANF are put into a dissociator and dissociated.

The pulp raw material is put into a dissociator to dissociate, and the pulp raw material includes kraft pulp, kelp pulp, cellulose fiber, and water.

More preferably, the pulp raw material includes 19-21 parts by weight of kraft pulp, 9-11 parts by weight of kelp pulp, 4-6 parts by weight of cellulose fiber, and 64-66 parts by weight of water.

Next, the dissociated pulp raw materials are beaten using a beater, and foreign substances are removed from the beaten pulp raw materials using a sorting machine.

In the refining and selection stage, refining and removal of foreign substances are performed using a beater and a selector.

After performing the above steps, the physical properties of the paper material can be improved by applying a sizing agent, retention enhancer, or other additives to the pulp raw material, but this additional process can be performed using commonly used technologies.

Next, it includes the step of adding 0.5-4 parts by weight of antibacterial extract and 63-67 parts by weight of water to the pulp raw material from which foreign substances have been removed, followed by screening.

The pulp raw materials include 18-22 parts by weight of kraft pulp, 8-12 parts by weight of kelp pulp, 3-7 parts by weight of cellulose fiber, and 63-67 parts by weight of water, and 0.5-4 parts by weight of antibacterial extract are mixed here. In addition, screening is performed after adding 63-67 parts by weight of water. The screening involves passing through a screen to achieve even mixing. 0.5-4 parts by weight, 1-3 parts by weight, and most preferably 2 parts by weight of antibacterial extract are added to the pulp raw material from which foreign substances have been removed using the above sorting machine, and 63-67 parts by weight, 64-66 parts by weight of water, Most preferably, 65 parts by weight is added. At the same time as adding the antibacterial extract, the concentration of the pulp raw material is lowered and screening is performed to achieve even mixing.

If the content of the antibacterial extract contained in the pulp raw material is outside the above range, the antibacterial effect may be insufficient, or problems may occur in the physical properties of the paper layer material itself.

The antibacterial extract preferably includes 28 to 32 parts by weight of milkweed extract, 28 to 32 parts by weight of propolis extract, 18 to 22 parts by weight of green tea extract, and 18 to 22 parts by weight of persimmon leaf extract.

The antibacterial extract includes the following steps: mixing 28-32 parts by weight of honeysuckle, 28-32 parts by weight of propolis, 18-22 parts by weight of green tea, and 18-22 parts by weight of persimmon leaves, drying with hot air, and pulverizing to prepare a mixed powder; Preparing a mixture by mixing 100 parts by weight of the prepared mixed powder, 600 parts by weight of water, and 200 parts by weight of acetone; Primary hot water extraction of the mixture at a temperature of 78°C for 9 hours; Afterwards, the mixture is subjected to secondary hot water extraction at a temperature of 98°C for 6 hours and then filtered to prepare an extract; and distilling the prepared extract at a temperature of 120°C for 18 hours.

Next, wetlands are manufactured using the screened pulp raw materials, and the wetlands are pressed and dried to produce base paper.

Wetlands are manufactured using screened pulp raw materials and dried to produce base paper. The above manufacturing may use a papermaking process applied to a general paper manufacturing process. The manufactured base paper contains pulp and fiber manufactured from the above raw materials and antibacterial extracts, thereby securing durability and exhibiting excellent antibacterial function.

The nonwoven fabric consists of 70-74 parts by weight of a resin mixed with polyethylene terephthalate polymer and polyacrylonitrile polymer at a weight ratio of 1:1, 3-7 parts by weight of carbon nanofibers, 2-6 parts by weight of insect repellent composition, and copper powder. 2-6 parts by weight, 1-5 parts by weight of calcium carbonate, 0.1-2 parts by weight of 2,2-methylenebis (6-tert-butyl-4-methylphenol), 0.1-2 parts by weight of sodium chloride and hindered amine Processing into pellets using a pellet composition containing 0.1-2 parts by weight of amine); Manufacturing a first yarn using the pellets; Stretching copper fibers to produce copper microfibers, and twisting 2-4 strands of the copper microfibers to produce copper threads through plied yarns; The copper yarn was mixed with 46-50 parts by weight of polylactic acid (PLA), 46-50 parts by weight of poly(butylene adipate-co-terephthalate) (PBAT), and 1 weight of an epoxy-based crosslinking agent. manufacturing a second yarn by plying a composition containing 1 part by weight of copper powder with a particle size of 30-50 nm with regular yarn produced by spinning at a weight ratio of 1:5-9; manufacturing a composite yarn by plying the first yarn and the second yarn; and manufacturing a nonwoven fabric using the composite yarn.

The nonwoven fabric is preferably manufactured using composite yarns manufactured by combining first yarns and second yarns.

The first yarn preferably contains 70-74 parts by weight of a resin mixed with polyethylene terephthalate (PET) polymer and polyacrylonitrile (PAN) polymer at a weight ratio of 1:1, and 71-73 parts by weight. It is more desirable to include it. The resin uses a composite resin of PET and PAN as the main raw material for the first yarn. Through this, yarn with excellent physical properties can be obtained.

The first yarn preferably contains 3-7 parts by weight of carbon nanofibers, and more preferably contains 4-6 parts by weight. By including the carbon nanofibers, durability, flame resistance, heat resistance, etc. can be secured.

The first yarn preferably contains 2-6 parts by weight of the insect repellent composition, and more preferably contains 3-5 parts by weight.

The insect repellent composition preferably includes an insect repellent extract obtained from a mixture containing permethrin-grafted polybutadiene polymer resin, cinnamon bark, chestnut bark, thyme, clove, and peppermint, and sodium dodecyl sulfate. The insect repellent composition is a mixture containing permethrin-grafted polybutadiene polymer resin, which is formed by previously binding permethrin, which has insecticidal and insect-repelling functions, to a polybutadiene polymer resin, and cinnamon bark, chestnut bark, thyme, clove, and peppermint. An insect repellent extract extracted from and prepared by applying sodium dodecyl sulfate as a surfactant are used.

The insect repellent composition preferably includes 68-72 parts by weight of the polybutadiene polymer resin grafted with the permethrin, 27-31 parts by weight of the insect repellent extract, and 0.3-3 parts by weight of sodium dodecyl sulfate, and the permethrin grafted It is more preferable to include 69-71 parts by weight of polybutadiene polymer resin, 28-30 parts by weight of the insect repellent extract, and 0.5-1.5 parts by weight of sodium dodecyl sulfate.

The insect repellent composition is,

Preparing a mixed solution by mixing polybutadiene, permethrin, and toluene; Adding a reactive catalyst to the mixed solution and reacting with stirring at a rotation speed of 200-400 rpm for 60-120 minutes at a temperature of 70-90°C; and immersing the reacted product in methanol to obtain a permethrin-grafted polybutadiene polymer resin; Preparing a permethrin-grafted polybutadiene polymer resin including;

Preparing cinnamon bark, chestnut bark, thyme, cloves, and peppermint by washing and cutting them; 90-110 parts by weight of the prepared cinnamon bark, chestnut bark, thyme, clove and peppermint were mixed in a weight ratio of 1:1:1:1:1 and 900-1100 parts by weight of distilled water were mixed and extracted by steam distillation. Preparing an insect repellent extract; and

It is preferable to use one prepared by mixing 68-72 parts by weight of the permethrin-grafted polybutadiene polymer resin, 27-31 parts by weight of the insect repellent extract, and 0.1-3 parts by weight of sodium dodecyl sulfate.

The first yarn preferably contains 2-6 parts by weight of copper powder, and more preferably contains 3-5 parts by weight. The copper powder is used as a filler to improve the physical properties of packaging paper.

The first yarn preferably contains 1-5 parts by weight of calcium carbonate, and more preferably contains 2-4 parts by weight. The calcium carbonate is used as a filler to improve the physical properties of packaging paper.

The first yarn preferably contains 0.1-2 parts by weight, and more preferably 0.5-1.5 parts by weight, of 2,2-methylenebis (6-tert-butyl-4-methylphenol). The 2,2-methylenebis(6-tert-butyl-4-methylphenol) is used as an antioxidant.

The first yarn preferably contains 0.1-2 parts by weight of sodium chloride, and more preferably contains 0.5-1.5 parts by weight. The sodium chloride is used as a mechanical/thermal stabilizer.

The first yarn preferably contains 0.1-2 parts by weight of hindered amine, and more preferably contains 0.5-1.5 parts by weight. The hindered amine is used as an ultraviolet stabilizer.

The step of processing the pellets is preferably performed by melting the mixture using a melter and then processing it into pellets and discharging them.

As described above, the polymer resin and other additives can be mixed, first melted using different melters, then second melted, and then processed and discharged in the form of pellets to easily produce them in the form of pellets. Using different types of melters to mix, first melt, second melt, and then second melt can be discharged in the form of pellets.

The melting is preferably performed at a temperature of 180-200°C.

The second yarn is manufactured by plying copper yarn manufactured through copper fiber and general yarn containing polylactic acid, polybutylene adipate terephthalate, epoxy-based crosslinking agent, and copper nanopowder, and is combined with the first yarn. When applied together, they can contribute to the user's health by performing antibacterial or sterilization in the packaging itself.

The adhesive layer consists of 35-39 parts by weight of acrylic polyurethane resin, 26-30 parts by weight of polylactic acid (PLA) with a weight average molecular weight of 10,000-20,000, 11-15 parts by weight of lactic acid oligomer with a weight average molecular weight of 3,000-4,000, and 4 parts by weight of carboxymethyl cellulose. -8 parts by weight, including 3-7 parts by weight of poly butylene succinate-co-adipate (PBSA), 6-10 parts by weight of mineral oil, and 1-5 parts by weight of plant extract. It is preferably formed of a composition for forming an adhesive layer, and the composition for forming an adhesive layer contains 36-38 parts by weight of acrylic polyurethane resin, 27-29 parts by weight of polylactic acid (PLA) with a weight average molecular weight of 10,000-20,000, and a weight average molecular weight of 3,000- 4,000 phosphorus lactic acid oligomer 12-14 parts by weight, carboxymethyl cellulose 5-7 parts by weight, polybutylene succinate-co-adipate (PBSA) 4-6 parts by weight, mineral oil It is more preferable to include 7-9 parts by weight and 2-4 parts by weight of plant extract.

The composition for forming the adhesive layer preferably contains an acrylic polyurethane resin. The acrylic polyurethane resin is prepared by mixing polytetramethylene glycol (PTMG), dimethylol propionic acid (DMPA), N-methylpinolidone (NMP) solution, and isophorone diisocyanate (IPDI). Prepare a prepolymer, neutralize the prepolymer with triethylamine (TEA) diluted in N-methylpinolidone (NMP) solution, add distilled water to the neutralized prepolymer to disperse it, and then use a chain extender. Water-dispersed polyurethane was prepared by adding ethylene diamine (EDA), and methylmethacrylate (MMA) and 2,2'-azobisisobutyronitrile (AIBN) were added to the water-dispersed polyurethane. ) It is preferable to use one prepared by adding and then stirring. The acrylic polyurethane resin is applied together with polylactic acid to further increase the viscosity of the composition for forming an adhesive layer and increase adhesion with additives added to the composition later.

The composition for forming the adhesive layer contains polylactic acid, and the polylactic acid is one of the main components of the adhesive layer applied together with acrylic polyurethane resin, and preferably has a weight average molecular weight of 13,000-18,000, and is applied as an eco-friendly component.

The composition for forming the adhesive layer contains lactic acid oligomer, and the lactic acid oligomer is an ingredient for improving adhesion and wettability, and it is preferable to use a composition with a weight average molecular weight of 3,300-3,800, and is applied as an eco-friendly ingredient.

The composition for forming the adhesive layer includes carboxymethyl cellulose, which is an absorbent polymer that has both electrostatic repulsion and hydrophilic properties and can absorb moisture or vapor several times its weight. For example, when the relative humidity of gas is 40% or more, the moisture absorption amount is more than 4 times greater than that of silicate. Including the carboxymethyl cellulose helps moisture resistance.

The polycaprolactone polyol functions to improve adhesion, moisture resistance, permeability, and eco-friendliness. More preferably, the above effect can be further improved by using a polycaprolactone polyol with a number average molecular weight of 500-1,000 and a polycaprolactone polyol with a number average molecular weight of 5,000-8,000 in the weight range of 1:0.1 to 0.5. You can.

The isosorbide diol has the function of greatly improving adhesion, impact resistance, moisture resistance, and antibacterial and insect repellent effects.

The oxybisphenoxarsine (10,10'-oxybisphenoxarsine, OBPA) is applied as an organic antibacterial agent to improve antibacterial function and antibacterial persistence.

The composition for forming the adhesive layer contains PBSA, and PBSA is used as an ingredient to provide plasticity, tensile strength, and heat resistance.

The composition for forming the adhesive layer preferably contains mineral oil.

The composition for forming an adhesive layer includes a plant extract, and the plant extract is a mixture of mulberry extract, fir tree extract, and mulberry extract in a weight ratio of 1:1:1. Antibacterial functionality can be imparted by applying plant extracts including the mulberry extract, fir extract, and mulberry extract.

Mulberry (Broussonetia kazinoki) belongs to the Moraceae family and has been traditionally used for the production of Hanji (Korean paper) and for alleviating and treating inflammatory/infectious diseases (Korean Patent Publication No. 10-2012-0003603). Recently, it has also been used as a whitening material.

Psoriasis is a deciduous shrub of the legume family that commonly grows to a height of 2 to 3 m in mountains and fields and blooms in July to August. It is widely used for medicinal purposes due to its unique medicinal effects. It is known that fir tree contains flavonoids, pestidine, protein, fat, calcium, vitamin B1, amino acids, carbohydrates, iron, vitamins B, C, and K, and tannin chlorophyll.

Morus alba for pendula is a deciduous tree belonging to the Morus family of the nettle order and belonging to the dicotyledonous plant family. The scientific name is Morus alba for. It is pendula Dippel, and the leaves are ovate-circular or long oval-ovate, divided into 3-5 pieces, blunt or acuminate, have a deep heart base, are 10 cm long, have dull sawtooth edges, have a pointed tip, and have a rough or smooth surface, with veins on the back. There is fine hair. The petioles are also 2-2.5cm long and have fine hairs. The flower is a dioecious flower that blooms in June. The male flower is borne on a caudal inflorescence that droops down from the leaf axil at the bottom of the new branch where the male flower has fallen. The female flower spike is 5-10 mm long, has a wide oval shape, has 4 flowers, and has a flower stalk. short. The ovary is hairless. The flower stalk is shorter than that of wild mulberry. The fruit is liquid and ripens black in June. The fruit spike is spherical or oval and is 1-2.5cm long. The bark is grayish brown. The branches are gray-brown or gray-white and have fine hairs, but they gradually disappear and the branches droop downward. It is distributed vertically at an altitude of 100 to 1,100 m, and horizontally almost throughout the country.

The packaging may exhibit excellent antibacterial functionality by including the plant extract.

The plant extract includes the steps of washing, freeze-drying, and pulverizing mulberry trees, fir trees, and mulberry trees to produce mulberry tree powder, fir tree powder, and mulberry tree powder; 20 g of the mixed powder made by mixing the prepared mulberry powder, fir tree powder and drooping mulberry powder in a weight ratio of 1:1:1 was mixed with 200 ml of water and subjected to primary hot water extraction at a temperature of 80°C for 8 hours while stirring. performing steps; After the first hot water extraction, filtering with filter paper and then freeze-drying the filtrate to prepare a first mixed extract; After the first hot water extraction, filter through filter paper and mix the remaining solids with water again so that the mixing ratio of solids and water is 0.1 g/ml, and perform the second hot water extraction at a temperature of 120°C for 12 hours while stirring. steps; After secondary hot water extraction, filtering through filter paper and then freeze-drying the filtrate to prepare a secondary mixed extract; After secondary hot water extraction, filter through filter paper, and mix the remaining solids with water again so that the mixing ratio of solids and water is 0.1 g/ml, and then add [BMIm][TFSI] (1-Butyl-3-methylimidazolium Adding 1-2 g of bis(trifluoromethylsulfonyl)imide) and performing third hot water extraction at a temperature of 100°C for 8 hours while stirring; After the third hot water extraction, filtering through filter paper and then freeze-drying the filtrate to prepare a third mixed extract; and mixing the first mixed extract, second mixed extract, and third mixed extract.

The moisture-proof coating layer includes 28-32 parts by weight of an acrylic polymer resin, 13-17 parts by weight of polysiloxane represented by the following formula (1), 8-12 parts by weight of polysiloxane represented by the formula (2), 8-12 parts by weight of an acrylic mixture, and 8 inorganic filler. -12 parts by weight, 4-8 parts by weight of magnesium hydroxide carbonate, 0.8-1.2 parts by weight of cellulose-based thickener, 0.3-0.7 parts by weight of rosin ester-based tackifier, 0.3-0.7 parts by weight of 3-(methacryloxypropyl)trimethoxysilane. It is preferably formed of a composition for forming a moisture-proof coating layer containing 15-19 parts by weight of water and 29-31 parts by weight of an acrylic polymer resin and 14-16 parts by weight of polysiloxane represented by the following formula (1). , 9-11 parts by weight of polysiloxane represented by the following formula 2, 9-11 parts by weight of an acrylic mixture, 9-11 parts by weight of inorganic filler, 5-7 parts by weight of magnesium hydroxide carbonate, 0.9-1.1 parts by weight of cellulose-based thickener, rosin ester. It is more preferable to include 0.4-0.6 parts by weight of a tackifier, 0.4-0.6 parts by weight of 3-(methacryloxypropyl)trimethoxysilane, and 16-18 parts by weight of water.

The composition for forming a moisture-proof coating layer includes an acrylic polymer resin. The acrylic polymer resin has a weight average molecular weight of 80,000-100,000 and is a copolymer containing 28-32 parts by weight of methyl methacrylate monomer units, 28-32 parts by weight of 2-ethylhexyl acrylate monomer units, and 38-42 parts by weight of acrylic acid monomer units. A chain is preferable. By using the acrylic polymer resin, which has a specific weight average molecular weight and is a copolymer containing methyl methacrylate monomer, 2-ethylhexyl acrylate monomer, and acrylic acid monomer, excellent adhesion and durability can be secured.

<Formula 1>

(In Formula 1, p is 30-200, q is 10-100, and r is 5-50.)

<Formula 2>

(In Formula 2, a is 30-200, b is 5-50, and c is 5-50.)

The moisture-proof coating layer contains polysiloxane represented by Formula 1 and has excellent moisture-proof properties. The polysiloxane contains hydrogen and phenyl groups and has excellent moisture-proof performance. In Formula 1, p is 80-120, q is 40-60, and r is more preferably 20-30.

The moisture-proof coating layer contains polysiloxane represented by Formula 2 and has excellent moisture-proof properties. At the same time, the polysiloxane possesses primary amine groups and secondary amine groups at the same time, which can further improve adhesive properties and increase durability. Additionally, solvent resistance can be secured. In Formula 2, a is 80-120, and c is more preferably 20-30.

The composition for forming a moisture-proof coating layer includes an acrylic compound. The acrylic compound is preferably a mixture of vinyl acrylate, 2-ethylhexyl acrylate, butyl acrylate, and ethyl acrylate in a weight ratio of 3:3:2:2. Adhesion strength can be further increased by adding the acrylic compound.

The inorganic filler preferably includes 33-37 parts by weight of tourmaline powder, 28-32 parts by weight of illite powder, 23-27 parts by weight of amphibole powder, and 8-12 parts by weight of biotite powder, and 34-36 parts by weight of tourmaline powder, It is more preferable to include 29-31 parts by weight of illite powder, 24-26 parts by weight of amphibole powder, and 9-11 parts by weight of biotite powder.

As is well known, tourmaline is a representative negative ion emitter and has the property of permanently flowing a weak current, so it is also called tourmaline. The far-infrared rays emitted from tourmaline promote the flow of blood within the human body and promote perspiration (release of waste products). , it acts as pain relief, skin soothing effect, deodorization, antibacterial, dehumidification, air purification, etc. This current is a weak current of 0.06mA and is the most suitable current for the human body as it comes in contact with the heat (body temperature) of the human body. It is known to have an antibacterial, deodorizing, and cleaning effect by conducting heat transfer to provide insulation, stimulating acupoints to improve the peripheral circulatory system, promoting blood flow, and generating negative ions. It blocks electromagnetic waves by converting harmful positive ions generated from home appliances into negative ions. It also has the function of In the present invention, tourmaline powder is applied to serve as a filler to provide durability and moisture resistance to moisture-proof packaging and to provide antibacterial function.

Illite is a representative natural clay mineral and is a porous mica mineral. It has a thin plate-like structure and is curved and elastic, so it has excellent elasticity and adsorption. In addition, it radiates far infrared rays with an emissivity of 93% and 3.71 x 102 at 40℃. In addition, it has antibacterial activity and heavy metal adsorption properties. It is more preferable that the illite powder contains 29-31 parts by weight. In the present invention, illite powder is applied to serve as a filler to provide durability and moisture resistance to moisture-proof packaging and to provide antibacterial function.

Amphibloe is a black mineral whose main ingredients are calcium, magnesium, and iron and contains some aluminum. It is also called goblet. These amphibole were found to emit large amounts of far-infrared rays and inorganic acids when heated. In particular, it emits 9-10 micron far infrared rays (92% emissivity) that are beneficial to the human body. In the present invention, hornblende powder is applied to serve as a filler to provide durability and moisture resistance to moisture-proof packaging and to provide antibacterial function.

Biotite has a far-infrared emissivity of 93% at a temperature of 40 degrees. These minerals are known to have various functions such as sterilization, liquid molecule refinement, far-infrared ray radiation, oxygen supplementation function, improvement of human body absorption ability, acid neutralization function, and adsorption function. In particular, the wavelength emitted from the far-infrared rays emitted from the above-mentioned minerals has the function of preventing cell aging by causing cells to resonate finely 2,000 times per minute when they come into contact with moisture and protein molecules. In the present invention, biotite powder is applied to serve as a filler to provide durability and moisture resistance to moisture-proof packaging and to provide antibacterial function.

The magnesium hydroxide carbonate is applied as a flame retardant desiccant to improve flame retardancy and moisture resistance.

Hereinafter, the present invention will be described in more detail through the following examples and experimental examples.

However, the following examples and experimental examples only illustrate the content of the present invention and the scope of the invention is not limited by the examples and experimental examples.

<Examples and Experimental Examples>

antibacterial experiment

Base paper as described above; A non-woven fabric layer formed on both sides of the base paper; An adhesive layer formed on one side of each nonwoven fabric layer; And moisture-proof packaging was manufactured with a moisture-proof coating layer formed on one side of each of the adhesive layers.

In order to confirm the antibacterial performance of the moisture-proof packaging paper, a test was performed using the manufactured moisture-proof packaging paper using the KS K 0693: 2016 test method. The strains used were Staphylococcus aureus ATCC 6538 and Klebsiella pneumoniae ATCC 4352, and the test results are shown in Table 1 below.

Test Items Sample classification initial concentration
(CFU/ml) Concentration after 18 hours
(CFU/ml) Bacteriostatic reduction rate
(%) Antibacterial test using Staphylococcus aureus control group 1.8×10 ⁴ 3.1×10 ⁷ - moisture proof wrapping paper 2.1×10 ³ 99.9 caused by pneumococci
Antibacterial test control group 1.9×10 ⁴ 2.4×10 ⁷ - moisture proof wrapping paper 1.4×10 ³ 99.9

As shown in Table 1 above, the antibacterial performance of the moisture-proof packaging paper according to the present invention was confirmed.

Water resistance and moisture permeability test

Base paper as described above; A non-woven fabric layer formed on both sides of the base paper; An adhesive layer formed on one side of each nonwoven fabric layer; And moisture-proof packaging was manufactured with a moisture-proof coating layer formed on one side of each of the adhesive layers.

In order to confirm the water resistance and moisture permeability of the moisture-proof packaging paper, tests were performed using the manufactured moisture-proof packaging paper using the KS M 7025:2012:12 test method and the KS M ISO 2528 test method.

As a result, the water resistance of the moisture-proof packaging paper according to the present invention is very excellent (classified as very good, good, average, and poor), and the moisture permeability is also very good (classified as very good, good, average, and poor, but in the case of very good < It was confirmed that it was 2 mg/m ² , in case of excellent it was 2-20 mg/m ² , in case of average it was 20-50 mg/m ² , and in case of deficiency it was > 50 mg/m ² ).

Claims (3)

It includes a base paper, a non-woven fabric formed on one side of the base paper, an adhesive layer formed on one side of the non-woven fabric, and a moisture-proof coating layer formed on one side of the adhesive layer,
The base material,
Pre-treating kelp with a hydrochloric acid solution at a concentration of 8-12% by weight and bleaching it with hydrogen peroxide to produce kelp pulp;
Pre-treating bamboo pulp with an endoglucanase solution at a concentration of 1-5% by weight and treating it with a high-pressure homogenizer at a pressure of 800-1000 bar to produce cellulose fibers;
dissociating pulp raw materials including 18-22 parts by weight of kraft pulp, 8-12 parts by weight of kelp pulp, 3-7 parts by weight of cellulose fibers, and 63-67 parts by weight of water into a dissociator;
Beating the dissociated pulp raw material using a beater and removing foreign substances from the beaten pulp raw material using a sorting machine;
Screening after adding 0.5-4 parts by weight of antibacterial extract and 63-67 parts by weight of water to the pulp raw material from which foreign substances have been removed; and
It is manufactured by performing the steps of producing a wetland using screened pulp raw materials, pressing and drying the wetland,
The antibacterial extract includes 28-32 parts by weight of honeysuckle extract, 28-32 parts by weight of propolis extract, 18-22 parts by weight of green tea extract, and 18-22 parts by weight of persimmon leaf extract,
The nonwoven fabric,
70-74 parts by weight of a resin mixed with polyethylene terephthalate polymer and polyacrylonitrile polymer at a weight ratio of 1:1, 3-7 parts by weight of carbon nanofibers, 2-6 parts by weight of insect repellent composition, 2-6 parts by weight of copper powder. parts by weight, 1-5 parts by weight of calcium carbonate, 0.1-2 parts by weight of 2,2-methylenebis (6-tert-butyl-4-methylphenol), 0.1-2 parts by weight of sodium chloride, and 0.1 parts by weight of hindered amine. Processing into pellets using a pellet composition containing -2 parts by weight;
Manufacturing a first yarn using the pellets;
Stretching copper fibers to produce copper microfibers, and twisting 2-4 strands of the copper microfibers to produce copper threads through plied yarns;
The copper yarn was mixed with 46-50 parts by weight of polylactic acid (PLA), 46-50 parts by weight of poly(butylene adipate-co-terephthalate) (PBAT), and 1 weight of an epoxy-based crosslinking agent. manufacturing a second yarn by plying a composition containing 1 part by weight of copper powder with a particle size of 30-50 nm with regular yarn produced by spinning at a weight ratio of 1:5-9;
manufacturing a composite yarn by plying the first yarn and the second yarn; and
It is manufactured by performing the step of manufacturing a nonwoven fabric using the composite yarn,
The insect repellent composition includes 68-72 parts by weight of polybutadiene polymer resin grafted with permetrin, cinnamon bark extract, chestnut bark extract, thyme extract, clove extract, and peppermint extract in a weight ratio of 1:1:1:1:1. Contains 27-31 parts by weight of insect repellent extract and 0.3-3 parts by weight of sodium dodecyl sulfate mixed with,
The adhesive layer is,
35-39 parts by weight of acrylic polyurethane resin, 26-30 parts by weight of polylactic acid (PLA) with a weight average molecular weight of 10,000-20,000, 11-15 parts by weight of lactic acid oligomer with a weight average molecular weight of 3,000-4,000, 4-8 parts by weight of carboxymethyl cellulose Forming an adhesive layer containing 3-7 parts by weight of polybutylene succinate-co-adipate (PBSA), 6-10 parts by weight of mineral oil, and 1-5 parts by weight of plant extract. It is formed from a composition for
The acrylic polyurethane resin is prepared by mixing polytetramethylene glycol (PTMG), dimethylol propionic acid (DMPA), N-methylpinolidone (NMP) solution, and isophorone diisocyanate (IPDI). Prepare a prepolymer, neutralize the prepolymer with triethylamine (TEA) diluted in N-methylpinolidone (NMP) solution, add distilled water to the neutralized prepolymer to disperse it, and then use a chain extender. Water-dispersed polyurethane was prepared by adding ethylene diamine (EDA), and methylmethacrylate (MMA) and 2,2'-azobisisobutyronitrile (AIBN) were added to the water-dispersed polyurethane. ) is manufactured by adding and then stirring,
The plant extract is a mixture of mulberry extract, fir extract, and mulberry extract in a weight ratio of 1:1:1,
The moisture-proof coating layer is,
28-32 parts by weight of acrylic polymer resin, 13-17 parts by weight of polysiloxane represented by Formula 1 below, 8-12 parts by weight of polysiloxane represented by Formula 2 below, 8-12 parts by weight of acrylic mixture, 8-12 parts by weight of inorganic filler , 4-8 parts by weight of magnesium hydroxide carbonate, 0.8-1.2 parts by weight of cellulose-based thickener, 0.3-0.7 parts by weight of rosin ester-based tackifier, 0.3-0.7 parts by weight of 3-(methacryloxypropyl)trimethoxysilane, and water. It is formed of a composition for forming a moisture-proof coating layer containing 15-19 parts by weight,
The acrylic polymer resin has a weight average molecular weight of 80,000-100,000 and contains 28-32 parts by weight of methyl methacrylate monomer units, 28-32 parts by weight of 2-ethylhexyl acrylate monomer units, and 38-42 parts by weight of acrylic acid monomer units. It is a combination,
The acrylic mixture is a mixture of vinyl acrylate, 2-ethylhexyl acrylate, butyl acrylate, and ethyl acrylate in a weight ratio of 3:3:2:2,
The inorganic filler includes 33-37 parts by weight of tourmaline powder, 28-32 parts by weight of illite powder, 23-27 parts by weight of amphibole powder, and 8-12 parts by weight of biotite powder:
<Formula 1>

(In Formula 1, p is 30-200, q is 10-100, and r is 5-50),
<Formula 2>

(In Formula 2, a is 30-200, b is 5-50, and c is 5-50). delete According to paragraph 1,
The moisture-proof packaging paper is characterized in that it includes a non-woven fabric, an adhesive layer, and a moisture-proof coating layer on both sides of the base paper.