KR102321350B1 - Composite fiber diapers - Google Patents

Abstract

The present invention relates to a composite fiber diaper including: a pad (100) surrounding a wearer's genitals and anus and protruding to the front and back of the waist in the front and back; and waist fixing means (200) provided on the front and back sides of the pad (100) to fix the pad (100) to the waist. The diaper contains a super-absorbent polymer and a composite fiber. Accordingly, it is possible to prevent contact between the skin and a child's or elderly person's urine, secretions, or feces by quick absorption. In addition, the diaper can be worn comfortably and hygienically by surface drying.

Description

Composite fiber diapers

The present invention relates to a composite fiber diaper, and more particularly, by composing the diaper including a super absorbent polymer and composite fiber, it is rapidly absorbed so that urine, secretions, or stools of children or the elderly do not come into contact with the skin. It relates to a composite fiber diaper that has excellent comfort and can be worn hygienically by drying the surface.

In general, diapers are used to receive urine and feces of people who cannot cover urine and feces (eg, infants and dementia patients) or people with reduced mobility (eg, patients and the elderly). A person who wears a diaper cannot change the diaper by himself or herself after having a bowel movement, and usually a guardian (eg, a parent, a family member, a nurse, a daycare worker, etc.) changes the diaper.

These diapers are worn by infants, the elderly, or patients with incontinence, and serve to absorb urine, secretions, or defecation. A diaper commonly known includes a pad enclosing the genitals and anus and protruding from the front and back to the front and rear of the waist, It is provided on both front and rear sides of the pad and consists of a waist fixing means to wear the pad on the waist.

And the pad, the wearer's genitals and anus in close contact with the upper sheet to permeate urine, secretions or feces; It is provided in a waterproof sheet to prevent clothes from getting dirty.

In addition, the upper sheet is composed of one of synthetic resin, synthetic fiber, and natural fiber so that urine or secretions can permeate.

In addition, the waist fixing means is provided on both sides of the attachment elastic band provided on the front or rear both sides of the pad and the attachment elastic band provided on opposite sides provided with the attachment elastic band is to be composed of an attachment portion to which the attachment elastic band is attached. And, the attachment elastic band and attachment part are the most widely used ones made of Velcro tape.

The diaper configured as described above is used for absorbing urine, secretions, or feces of infants, the elderly, or incontinence patients. It can cause depression or social avoidance, lowering self-confidence and motivation to live, and bacteria and odors caused by persistent moisture limit social activities or cause infection with other diseases.

In addition, diapers currently sold in Korea use disposable or adult diapers (or panties) as they are or wear pads with increased absorption, so that when users use disposable or adult diapers (or panties) or pads for a long time, There is a problem that the genital area is shriveled and weak due to moisture, which can cause other skin diseases, etc.

Domestic Registered Patent No. 10-1502083 (registered on March 06, 2015) Domestic Registered Patent No. 10-1486224 (Registered on January 20, 2015) Domestic Registered Patent No. 10-1502958 (registered on March 10, 2015)

The present invention constitutes a diaper including a super absorbent polymer and a composite fiber, so that the urine, secretions, or feces of children or the elderly do not come into contact with the skin, and the surface is dried to provide excellent comfort and hygiene To provide a wearable composite fiber diaper.

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

The composite fiber diaper according to the present invention is provided on both sides of the front and rear sides of the pad 100 and the front and rear of the pad 100 that wraps around the wearer's genitals and anus and protrudes forward and backward of the waist, the pad 100 It consists of a waist fixing means 200 fixed to the waist.

The pad 100 is located under the upper sheet 110, the upper sheet 110, which is in close contact with the wearer's genitals and anus to transmit urine, secretions, or feces, and urine or secretions transmitted from the upper sheet 110, or A diffusion layer 120 for passing stool, an absorbent pad 130 positioned under the diffusion layer 120 and absorbing and storing urine or secretions or feces transmitted through the diffusion layer 120, and the absorbent pad 130 in the lower portion It is provided and may include a protective sheet 140 for preventing the urine, secretions, or feces absorbed and stored in the absorbent pad 130 from leaking to the outside.

The absorbent pad 130 includes a composite fiber 131, super absorbent polymers 133a and 133b positioned on both sides of the composite fiber 131, and super absorbent polymers 133a and 133b. ) may include non-woven fabrics (135a, 135b) positioned on both sides.

Specific details of other embodiments are included in the detailed description.

The composite fiber diaper according to the present invention is composed of a super absorbent polymer and a composite fiber, so that the urine, secretions, or defecation of children or the elderly do not come into contact with the skin, and it absorbs quickly and dries the surface to provide excellent comfort and can be worn hygienically.

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

1 is a view schematically showing a composite fiber diaper according to the present invention.
2 is a photograph showing a composite fiber diaper according to the present invention.
3 is a view schematically showing a cross-section of a pad constituting a composite fiber diaper according to the present invention.
4A and 4B are photographs showing the absorbent pad constituting the pad of the composite fiber diaper according to the present invention.
5 is a view schematically showing a cross-section of an absorbent pad constituting the pad of the composite fiber diaper 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 subject matter may be thorough and complete, and that 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. The singular expression includes the plural expression unless the context clearly dictates otherwise.

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

Hereinafter, a preferred embodiment of the composite fiber diaper according to the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, in the embodiment of the technical idea according to the present invention, a diaper that quickly absorbs urine, secretions, or feces of children or the elderly will be described as an example, but the technical idea of the present invention is not limited to the diaper described above. The technical idea is applicable to various configurations for absorbing urine, secretions, or feces, and for example, the composite fiber diaper according to the present invention can be equally used in a pad for absorbing urine or secretions or feces of pets. can

1 is a view schematically showing a composite fiber diaper according to the present invention, Figure 2 is a photograph showing a composite fiber diaper according to the present invention, Figure 3 is a schematic cross-section of the pad constituting the composite fiber diaper according to the present invention 4A and 4B are photographs showing the absorbent pad constituting the pad of the composite fiber diaper according to the present invention, and FIG. 5 is a cross-section of the absorbent pad constituting the pad of the composite fiber diaper according to the present invention. It is a schematic diagram showing.

1 to 5 , the composite fiber diaper 10 according to the present invention covers the wearer's genitals and anus and has a pad 100 with front and rear protruding front and rear of the waist, and the front of the pad 100 . , is provided on both sides of the rear and consists of a waist fixing means 200 for fixing the pad 100 to the waist.

In addition, in the composite fiber diaper 10 according to the present invention, the pad 100 is in close contact with the wearer's genitals and anus, so that urine, secretions, or feces are transmitted through the upper sheet 110, the upper sheet 110 is located below the A diffusion layer 120 for passing urine, secretions, or feces transmitted from the upper sheet 110, an absorbent pad that is located under the diffusion layer 120 and absorbs and stores urine, secretions, or feces transmitted through the diffusion layer 120 and a protective sheet 140 provided under the absorbent pad 130 and provided under the absorbent pad 130 and stored in the absorbent pad 130 to prevent leakage of urine, secretions, or feces to the outside.

The upper sheet 110 is in close contact with the wearer's genitals and anus, so that urine, secretions, or feces can pass through. It may be made of a woven, non-woven, or perforated thermoplastic film with liquid permeability that readily passes (eg, urine or excretions or feces).

For example, the woven fabric, nonwoven fabric, or perforated thermoplastic film forming the upper sheet 110 may be made of natural fibers, synthetic fibers, or a mixture of natural and synthetic fibers. The configuration of the upper sheet 110 is known , detailed description thereof will be omitted for convenience of description and clarity of the technical idea of the present invention.

The diffusion layer 120 is located between the upper sheet 110 and the absorbent pad 130, is liquid-permeable to easily pass a liquid (eg, urine, secretion, or feces), and is heat or ultrasonic to the upper sheet. It may be manufactured by bonding the materials forming the 110 and the diffusion layer 120 through ultrasonic processing.

For example, the materials for forming the upper sheet 110 and the diffusion layer 120 are not attached using hot melt as in the prior art, but the material for forming the upper sheet 110 and the diffusion layer 120 through ultrasonic processing. By attaching them, it is possible to remove the interference with the absorption rate of the permeable liquid (eg, urine, secretion, or feces) according to the curing of the hot melt, and also to improve the wearing comfort through the rapid absorption through the diffusion layer 120 and odor substances can be easily captured.

The diffusion layer 120 may be manufactured using materials known in the art, such as natural fibers, synthetic fibers, or a mixture of natural and synthetic fibers.

On the other hand, in the diffusion layer 120, a diffusion coating layer (not shown) may be further formed in order to improve the wearing comfort by fast absorption of urine, secretions, or feces, and at the same time to enhance antibacterial and sterilizing power, and to remove odors. , the diffusion coating layer may be formed by applying the diffusion coating liquid composition on the diffusion layer 120 and then drying.

The diffusion coating solution composition includes biomass polyurethane resin, TPV (Thermo Plastic Vulcanizate; thermoplastic crosslinked elastomer) resin, hoesaeng hat and half extract, red pepper root extract, inorganic extract, ethylene glycol (ethylene glycol) and isocyanate (isocyanate).

In addition, the diffusion coating solution composition is 20 to 30 parts by weight of biomass polyurethane resin, 10 to 20 parts by weight of TPV resin, 3 to 7 parts by weight of hoesaeng mother and half extract, 5 to 10 parts by weight of red pepper root extract, 1 to 3 parts by weight of inorganic extract parts, 2 to 6 parts by weight of ethylene glycol, and 0.1 to 1 parts by weight of isocyanate may be included in a weight ratio.

The biomass polyurethane resin may be a biomass polyurethane resin prepared by the following method.

In order to prepare the biomass polyurethane resin, first, dicarboxylic acid and polyol are prepared and mixed, and then a condensation reaction is performed to synthesize a polyester polyol.

The dicarboxylic acid may be at least one selected from adipic acid or succinic acid.

In addition, the polyol is 1,6-hexanediol (1,6-Hexanediol), 1,3-propanediol (1,3-Propanediol) and poly tetramethylene ether glycol (poly tetramethylene ether glycol, PTMG) Any one or more selected from the group consisting of may be used.

Specifically, the polyester polyol (Polyester Polyol) is prepared and mixed in a ratio of 1 mol (mol) of the dicarboxylic acid and 1.5 to 2.0 mol (mol) of the polyol, and then 250 to 300 ° C. It can be produced by proceeding the condensation reaction at a temperature of 10 to 20 hours.

Next, a radical initiator is added to the polyester polyol, an organic solvent, a bio polyfunctional polyol compound, and an isocyanate, and reacted to prepare a biomass polyurethane resin.

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

In addition, the bio-polyfunctional polyol compound can be prepared through a chemical manufacturing method of synthesizing into a bio-polyfunctional polyol containing a hydroxyl group through synthesis from animal and plant oils derived from biomass resources that do not contain a hydroxyl group.

For example, as a chemical manufacturing method of the bio-polyfunctional polyol compound, epoxidation is introduced by introducing a hydroxyl group through epoxidation and ring opening reaction of carbon double bonds to unsaturated fatty acid chains of animal and plant oils. As with epoxidation, hydroformylation to a carbon double bond followed by a hydrogenation reaction to introduce a hydroxyl group, and ozone (O ₃ ) to cut the carbon double bond There is a manufacturing method through ozonolysis, which introduces a hydroxyl group through hydrogenation and then hydrogenation.

The hydroxyl group introduced by the epoxidation production method has a disadvantage in that the reactivity with isocyanate is lower than that of the primary alcohol as a secondary alcohol. Although it is formed in the middle, it is relatively more reactive with isocyanates because it produces a primary alcohol. The hydroxyl group introduced by the production method through ozone decomposition is located at the end of the chain and has the advantage of high reactivity with isocyanate.

In the present invention, as the bio-polyfunctional polyol compound, the known bio-polyfunctional polyol compound prepared as described above may be used alone or in combination of two or more.

The bio polyfunctional polyol compound may be a bio polyfunctional polyol compound having a weight-average molecular weight (Mw) of 3,000 to 6,000 g/mol.

In addition, the isocyanate (Diisocyanate) is toluene diisocyanate (Toluene diisocyanate (TDI)), 4,4'-diphenylmethane diisocyanate (4,4'-Diphenylmethane diisocyanate (MDI)), hexamethylene diisocyanate (Hexamethylene diisocyanate ( HDI)), isophorone diisocyanate (IPDI) and 4,4'-methylenebis (cyclohexyl isocyanate) (4,4'-Methylenebis (cyclohexyl isocyanate) (HMDI) any one or more selected from the group consisting of this can be used

In addition, the radical initiator may be any one or more selected from benzoyl peroxide (BPO) or azobisisobutyronitrile (AIBN).

In addition, the biomass polyurethane resin (Biomass Polyurethane Resin) is the polyester polyol (Polyester Polyol) 60 to 80 parts by weight, 10 to 20 parts by weight of an organic solvent, 20 to 30 parts by weight of a bio polyfunctional polyol compound and isocyanate (Isocyanate) ) while being purged with nitrogen (N ₂ gas purging) at a temperature of 5 to 15 parts by weight in parts radical initiator of 0.1 to 0.5 in the 130 to 150 ℃ is prepared by reacting for 5 to 7 hours, the biomass polyurethane resin ( Biomass Polyurethane Resin) may have a weight-average molecular weight (Mw) of 30,000 to 50,000 g/mol.

The TPV (Thermo Plastic Vulcanizate; thermoplastic crosslinked elastomer) resin is a resin having both thermoplasticity and rubber elasticity, and refers to a composition comprising crosslinked ethylene-propylene-diene rubber (EPDM) and polypropylene as main components.

In general, TPV (Thermo Plastic Vulcanizate; thermoplastic crosslinked elastomer) resin is a simple blend type thermoplastic elastomer (TPO) in which rubber components are simply mixed without any crosslinking component, depending on the degree of crosslinking of the elastomer, and partially crosslinked thermoplastic elastomer. It is classified into a crosslinked elastomer (TPR) and a fully crosslinked thermoplastic crosslinked elastomer (TPV) that is fully crosslinked.

In addition, this degree of crosslinking affects the fine dispersibility of the rubber component in the TPV resin, and in turn, affects elastic properties such as tensile strength, permanent elongational settling rate, and permanent compression settling rate. Specifically, in the case of TPO without crosslinking or TPR with a low degree of crosslinking, there is a limit to making the rubber phase into a uniform fine dispersed phase by shear stress. In particular, as the content of rubber increases, it becomes more difficult to obtain a fine dispersed phase. . For this reason, in a material requiring thermoplasticity and excellent elasticity, dynamic crosslinking is performed in which the rubber phase is physically pulverized into fine particles by shear stress during crosslinking.

The sargassum horneri extract can be extracted from sargassum horneri, and is biologically classified as a plant-family brown algae plant group, brown algae, and is mainly distributed in the western part of the North Pacific Ocean, and is mainly distributed in the lower intertidal zone. grows in In the domestic coast, it is easily observed that a part of the body floats on the water surface at low tide, and the most common marine forest species or young individuals are edible.

The sargassum horneri is yellowish-brown, and the stem from the button-shaped root is elongated as a single strand or sometimes bifurcated and branched from the upper part. Currently, atopic inhibitory effect, anti-inflammatory effect, and heavy metal adsorption effect have been reported, and through screening experiments, antioxidant, adipocyte production inhibitory effect, cancer cell proliferation inhibitory effect, and anti-blood clotting effect have been reported.

The red pepper cod extract may be prepared so that the useful components of red pepper cod are effectively extracted by extracting the red pepper cod, and the red pepper cod may include roots and stems remaining after harvesting red peppers in autumn.

The red pepper paste contains various nutrients such as vitamins, beta-carotene, calcium, and various minerals. It has excellent inhibitory effect and can be used safely without side effects on the human body.

In general, when infected with a virus, it is accompanied by fever, cough, etc. and suffers from sore throat, pneumonia, difficulty breathing, etc.

In the present invention, the hoesaeng mother and gochujang extract can be prepared using a variety of known extraction methods, for example, the hoesaeng mother and gochujang extract and hot pepper extract are hot water extraction method, organic solvent extraction method, ultrasonic extraction method, supercritical extraction method It can be extracted using various extraction methods, such as In the present invention, the configuration for preparing the hoesaengi mother and gochujang extract and red pepper cod extract using the hoesaengi mother and gochujang extract is a well-known technique in the art, for convenience of explanation and clarity of the technical idea of the present invention, a detailed description thereof is to be omitted.

The inorganic extract may be prepared by extracting using substances having antibacterial, far-infrared radiation and deodorizing effects, and the inorganic extract may be an inorganic extract consisting of biotite extract, ocherite extract and illite extract.

In addition, the inorganic extract may be prepared by mixing 1 to 10 parts by weight of the biotite extract, 5 to 15 parts by weight of the ocher extract, and 10 to 20 parts by weight of the illite extract.

The biotite extract may be extracted from biotite, and the biotite is a mineral belonging to the monoclinic system, and the chemical component is K(Mg, Fe) ₃ (OH) ₂ AlSi ₃ O ₁₂ . When it forms a plate or impression (鱗狀), it often shows a hexagonal or rhombohedral body. The cleavage is complete at the bottom and the flakes have elasticity, which is smaller than that of gilt mica (金雲母). , the cleavage has a pearly luster and sometimes has a metallic luster.The hardness is 25-30, and the specific gravity is 27-31. The distribution is very wide and it is produced in many igneous and metamorphic rocks, and it is not uncommonly produced in sedimentary rocks. It is known that large biotite crystals can be obtained.

The biotite purifies the soil and facilitates oxygen supply by ion exchange to activate crop growth, prevent acidification of the soil by enhancing the vitality of the soil, prevent soil contamination by adsorbing harmful gases, and excellent purification ability It has the characteristic of neutralizing the acidified land.

The ocher stone extract can be extracted from ocher stone, and the far-infrared rays emitted from ocher penetrate the subcutaneous layer as deep as 80 times of general heat and shake the cells 2,000 times per minute to activate the vital activity of cell tissues. It promotes blood circulation, discharges wastes and heavy metals from the body, prevents stress, adult diseases, and gynecological diseases. Natural ocher stone is porous and breathes, so it has excellent humidity control ability, and excellent antibacterial performance. It is cool and warm in winter.

Ore ore is a health stone that preserves the pristine nature of ancient times, which has been deposited for more than 300 million years and formed under high pressure. It is a natural loess stone that has almost no impurities such as heavy metals, not calcined or processed soil. It has excellent deodorizing effect and excellent antibacterial and antifungal performance, especially since it is a porous sedimentary rock, it has excellent humidity control ability. has the effect of blocking

The illite extract can be extracted from illite, which is a representative natural clay mineral and is defined as a porous mica mineral. It has superior adsorption properties than other minerals.

The main component of the illite mineral is silicon oxide (SiO ₂ ) 57.5% that removes waste products and fruit sebum in pores, aluminum oxide (Al ₂ O ₃ ) that promotes blood circulation 23.3%, collagen binding action Iron oxide (Fe ₂ O ₃ ) 6.76%, detoxifying, stress suppressing and relieving calcium oxide (C ₂ O) 0.1%, sodium oxide (Na ₂ O) 1.21% providing osmotic pressure control and moisture control , magnesium oxide (MgO) 0.38%, potassium oxide (K ₂ O) 6.43%, titanium dioxide (TiO ₂ ), MnO, Li, Cr, Zn, Sr, etc. 4.32%, etc. It adsorbs substances and has negative ions, so it causes agglomeration and precipitation by electrical neutralization with suspended particles of cations. Adsorbs and deodorizes gas, activates cells, enhances immunity, emits a large amount of dissolved oxygen in water, activates water molecules, generates a large amount of negative ions from Illite itself, and 93% far-infrared rays at 40℃ It is known for its excellent adhesion because it has good elasticity and does not form agglomerates.

The inorganic extract, for example, an inorganic extract prepared by the following method may be used.

First, after preparing biotite, ocher stone and illite, the biotite, ocher stone and illite may be pulverized to a predetermined particle size.

In the above step, the biotite, ocherite and illite may be pulverized using a known pulverizer such as a ball milling device.

Next, the pulverized biotite, ochreous stone and illite may be heated to heat treatment.

In the above step, impurities and residual organic matter contained in the biotite, ocher stone and illite may be removed by heating the pulverized biotite, ocher stone and illite. It may proceed for 50 to 100 minutes at a temperature of 1700 °C.

Next, the heated biotite, ocher stone and illite are washed to remove combustion residues generated during heat treatment adhering to the surfaces of the biotite, ocher stone and illite, and then the washed biotite, ocher stone and illite are washed It can be aged by immersion in purified water.

In the above step, the washing of the biotite, ocher stone and illite may be performed by washing the surfaces of the biotite, ocher stone and illite with purified water at 50 to 60° C., and the aging of the biotite, ocher stone and illite is performed by the washed biotite , After mixing 400 to 600 parts by weight of purified water at a temperature of 30 to 50 ° C with respect to 100 parts by weight of ocher stone and illite, it can be carried out by sealing and storing for 3 to 6 days.

Then, after separating and removing biotite, ocher stone and illite from the aged mixture of biotite, ocher stone, illite and purified water, the purified water may be centrifuged.

In the above step, active ingredients of biotite, ocher stone and illite are leached into the purified water, and by centrifuging the purified water, the lower layer liquid in which fine particles of biotite, ocher stone and illite are located, and the lower layer liquid located above the lower layer liquid It can be separated by location into a middle layer and a supernatant.

Next, after separating the supernatant and the supernatant of the centrifuged purified water, the supernatant and the supernatant are heated to prepare an inorganic extract comprising a biotite extract, an ocherite extract and an illite extract.

In the above step, after separating the supernatant and the supernatant of the centrifuged purified water, it is heated with a heat source at a temperature of 130 to 150° C. to remove moisture to prepare an inorganic extract consisting of a biotite extract, an ocher stone extract and an illite extract. have.

The ethylene glycol may be added to improve fluidity and workability before curing, and to improve physical and chemical performance after curing.

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

The isocyanate may function as a curing agent, for example, the isocyanate is hexamethylene diisocyanate (HDI), hexamethylene diisocyanate trimer (HDT), isophorone diisocyanate (Isophorone) Diisocyanate, IPDI) and cyclohexylmethane diisocyanate (Cyclohexylmethanediisocyanate, H ₁₂ MDI) may be used at least one isocyanate, preferably hexamethylene diisocyanate (Hexamethylene Diisocyanate, HDI) may be used.

The absorbent pad 130 is located under the diffusion layer 120 and is provided to absorb and store urine, secretions, or feces transmitted through the diffusion layer 120. The absorbent pad 130 is a liquid-permeable upper sheet ( 110) and the function of retaining the absorbed urine, secretions or feces in order to rapidly absorb the urine, secretions or feces passing through the diffusion layer 120 and to prevent the absorbed urine, secretions or feces from coming into contact with the skin again carry out

The absorbent pad 130 includes a composite fiber 131, super absorbent polymers 133a and 133b positioned on both sides of the composite fiber 131, and super absorbent polymers 133a and 133b. ) includes a nonwoven fabric (135a, 135b) positioned on both sides.

The composite fiber 131 is made of a human-friendly material, for example, the composite fiber 131 is any one or more materials selected from the group consisting of PET (Polyethyleneterephthalate), PP (Polypropylene) and PE (Polyethylene). It can be manufactured through conventional processes such as melting, spinning, and cooling using For convenience of description and clarity of the technical idea of the present invention, a detailed description thereof will be omitted.

The super absorbent polymer (SAP) 133a, 133b may be positioned on both sides of the composite fiber 131 and may be provided to absorb and retain urine, secretions, or feces at a high speed.

For example, the superabsorbent polymer (SAP) 133a, 133b may be a superabsorbent polymer prepared by the following method.

In order to prepare the superabsorbent polymer, first, a mixed solution in which a water-soluble ethylenically unsaturated monomer, a cellulose compound, a carboxy (C1-C5) alkyl chitosan, a grapefruit seed extract, a hydrophilic additive and a crosslinking agent are mixed in a certain weight ratio is prepared. can

In the above step, the water-soluble ethylenically unsaturated monomer may be a conventional water-soluble ethylenically unsaturated monomer used in water absorbent polymers, for example, methacrylic acid, maleic anhydride, crotonic acid, itaconic acid, 2-acryloylethane sulfonic acid. , an anionic monomer of 2-methacryloylethanesulfonic acid, 2-methacryloylpropanesulfonic acid or 2-methacrylamide-2-methyl propanesulfonic acid and salts thereof; Any one or more selected from the group consisting of methacrylamide, N-substituted methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate and methoxypolyethylene glycol methacrylate may be used.

The cellulose-based compound is an environmentally friendly natural fiber that is completely biodegradable, and a superabsorbent polymer non-toxic to the human body can be prepared. For example, the cellulose-based compound is methyl cellulose, ethyl cellulose, propyl cellulose, carboxymethyl cellulose. Any one or more selected from the group consisting of , hydroxyethyl cellulose, methylhydroxyethyl cellulose, methylhydroxypropyl cellulose and ethylhydroxyethyl cellulose may be used.

The carboxy (C1-C5) alkyl chitosan is added to impart antibacterial properties to the superabsorbent polymer, and has a chain structure similar to that of cellulose. For example, the carboxy (C1-C5) alkyl chitosan is carboxymethyl chitosan or Any one or more selected from carboxyethyl chitosan may be used.

The grapefruit seed extract (GSE, Grapefruit seed extract) had antibacterial, antifungal, and antioxidant effects, and it was confirmed that there was no toxicity in the toxicity test. In particular, among the components of the grapefruit seed extract, ascorbic acid, ascorbyl palmitate, and tocopherol, etc., weaken the cell wall and cell membrane functions of putrefactive and pathogenic microorganisms, inhibit enzyme activity, and prevent the cell proliferation mechanism resulting from DNA/RNA. It has a sterilizing effect on , yeast and mold, and has an inhibitory effect on mold growth and toxin synthesis.

The hydrophilic additive is formed into a superabsorbent polymer and then eluted in the superabsorbent polymer, thereby forming a microcavity inside the superabsorbent polymer, and the absorption and storage of urine, secretions, or feces by the microcavity formed inside the absorbent polymer. power can be increased.

The hydrophilic additive may be at least one selected from the group consisting of sodium dodecyl sulfate, phosphate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, and sorbitan monooleate.

The crosslinking agent is added to maintain a stable gel strength in a swollen state by absorbing moisture and the absorption rate of the superabsorbent polymer. For example, the crosslinking agent includes N,N'-methylenebismethacrylate, ethylene Oxymethacrylate, polyethyleneoxymethacrylate, propyleneoxymethacrylate, glycerin diacrylate, glycerin triacrylate, trimethylol triacrylate, triallylamine, triarylcyanurate, triallyl isocyanate, polyethylene glycol , any one or more selected from the group consisting of diethylene glycol and propylene glycol may be used.

In the present invention, the mixed solution contains 80 to 120 parts by weight of a water-soluble ethylenically unsaturated monomer, 20 to 40 parts by weight of a cellulose compound, 1 to 10 parts by weight of carboxy (C1-C5) alkyl chitosan, 0.5 to 2.5 parts by weight of grapefruit seed extract, 5 to 15 parts by weight of the hydrophilic additive and 1 to 3 parts by weight of the crosslinking agent may be mixed in a weight ratio.

Next, the water-soluble ethylenically unsaturated monomer, the cellulosic compound, the carboxy (C1-C5) alkyl chitosan, the hydrophilic additive and the crosslinking agent may be added to a mixed solution mixed with water and then stirred.

In the above step, the water may be used to dissolve and disperse the water-soluble ethylenically unsaturated monomer, the cellulosic compound, the carboxy (C1-C5) alkyl chitosan, the hydrophilic additive and the crosslinking agent, the water-soluble ethylenically unsaturated monomer, the cellulosic compound , carboxy (C1-C5) alkyl chitosan, a hydrophilic additive, and 500 to 700 parts by weight of water may be added to a mixed solution consisting of a crosslinking agent and then stirred.

Next, a polymer may be formed by adding a polymerization initiator to the mixed solution in which the water is added and stirred.

In the above step, the polymerization initiator is added to promote the reaction of the mixed solution with the addition of water, and the polymerization initiator includes benzoin ether, dialkyl acetophenone, and hydroxyl. Any one or more selected from the group consisting of alkyl ketone (hydroxyl alkylketone), phenyl glyoxylate, benzyl dimethyl ketal (Benzyl Dimethyl Ketal), acyl phosphine and alpha-aminoketone (α-aminoketone) may be used, and preferably 2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide (2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide) may be used.

In the above step, the polymerization initiator may be proceeded by adding 0.1 to 1 parts by weight of the polymerization initiator to the mixed solution in which water is added and stirred.

Then, after drying the polymer, the dried polymer may be pulverized to prepare a super absorbent polymer.

In the above step, the drying of the polymer may be performed at a temperature of 80 to 90° C., and the pulverizing the dried polymer by a pin mill, a hammer mill, a screw mill, a roll It may be carried out by pulverizing so that the particle size is 10 to 300 μm using a known pulverizer such as a roll mill, a disc mill, or a jog mill.

The nonwoven fabrics 135a and 135b are positioned on both sides of the super absorbent polymer 133a and 133b. For example, the nonwoven fabrics 135a and 135b are made of polypropylene (PP) resin. can be manufactured.

The polypropylene (PP; polypropylene) resin is a thermoplastic resin obtained from a petrochemical plant, and in general, polypropylene is used in various ways from general household goods to industrial parts and is called a human-friendly material.

For example, the nonwoven fabrics 135a and 135b prepare polypropylene (PP) chips, put the polypropylene (PP) chips into the extruder, and then perform conventional processes such as melting, spinning, and cooling. It can be manufactured through, and since such a nonwoven fabric manufacturing technology is a known configuration, a detailed description thereof will be omitted for convenience of explanation and clarity of the technical idea of the present invention.

The protective sheet 140 is impermeable to liquid, so that urine, secretions, or feces absorbed and contained in the absorbent pad 130 soils products that come in direct contact with the diaper 10, such as the wearer's clothes or bed sheets, or make sure it doesn't get wet. The protective sheet 140 is preferably impermeable to liquid and permeable to gas. A plastic film has been generally used as having these properties, and a material in which a nonwoven fabric is adhered to a polyethylene film may be used.

The waist fixing means 200 may perform a function of maintaining the wearing state by wearing the composite fiber diaper 10 on the body. For example, the waist fixing means 200 may include an adhesive tape tab or Fastening members such as hooks and loops can be widely used.

The protective sheet 140 and the waist fixing means 200 may be made of various types of materials and configurations in addition to the above configuration, and these configurations are known in the art for convenience of explanation and the technical spirit of the present invention. For clarity, a detailed description thereof will be omitted.

Hereinafter, examples and comparative examples of the composite fiber diaper according to the present invention will be described in more detail with reference to the accompanying drawings.

<Example>

It is composed of a pad enclosing the wearer's genitals and anus and protruding forward and backward of the waist, and waist fixing means provided on both front and rear sides of the pad to wear the pad on the waist, the pad being the wearer's genitals and anus. The upper sheet in close contact with which urine or secretions or feces permeate, a diffusion layer located under the upper sheet and passing urine or secretions or feces permeated from the upper sheet, urine or secretions located under the diffusion layer and transmitted through the diffusion layer Alternatively, a composite fiber diaper comprising an absorbent pad for absorbing and storing feces, and a protective sheet provided under the absorbent pad and stored in the absorbent pad to prevent leakage of urine, secretions, or feces to the outside was prepared.

At this time, the diffusion coating liquid composition was applied to the diffusion layer and dried to form a diffusion coating layer, and the diffusion coating liquid composition was 25 parts by weight of a biomass polyurethane resin, 15 parts by weight of a TPV resin, 5 parts by weight of an extract of hoesaengi mother and child, 5 parts by weight of red pepper gochujang extract 8 parts by weight, 2 parts by weight of inorganic extract, 4 parts by weight of ethylene glycol, and 0.5 parts by weight of isocyanate were included in a weight ratio of 5 parts by weight of the inorganic extract, 5 parts by weight of biotite extract, 10 parts by weight of ocher extract and 15 parts by weight of illite extract was prepared by mixing with

In addition, the absorbent pad was manufactured to include a composite fiber, a superabsorbent resin positioned on both sides of the composite fiber, and a nonwoven fabric positioned on both sides of the superabsorbent polymer.

< Comparative Example >

A diaper having the same configuration as in Example was manufactured.

In this case, in the comparative example, the diffusion coating layer was not formed on the diffusion layer, and the absorbent pad was manufactured including only the composite fiber and the nonwoven fabric positioned on both sides of the composite fiber.

1. Deodorization test

A deodorization test was performed by measuring the ammonia test gas and gas concentration using FTIR using the diapers prepared according to the Examples and Comparative Examples, and the results are shown in [Table 1] below.

Test Items Elapsed time (minutes) Comparative Example Concentration (ppm) Example Concentration (ppm) deodorization test 30 535 220 90 513 150 150 491 95 300 475 60

Referring to [Table 1], the results of the deodorization test obtained by measuring the concentration of gas using the test gas of ammonia and FTIR, it can be seen that the deodorization rate of the diaper according to the embodiment is improved as time goes by.

2. Antibacterial test

Antibacterial tests were performed using the strains Escherichia coil ATCC 25922 and Pseudomonas aeruginosa ATCC 15442 using the diapers prepared according to the Examples and Comparative Examples, and the results are shown in Table 2 below.

Test Items Sample classification initial concentration Concentration after 48 hours (CFU/40p) Test with E. coli comparative example 620 1180 Example 620 180 Test by Pseudomonas Bacillus comparative example 330 750 Example 330 135

Referring to [Table 2], it can be seen that the diaper according to the present invention has an antibacterial effect, because the diaper according to the comparative example has an increase in bacteria over time, but the diaper according to the embodiment has a decrease in bacteria. can

Here, among the units of concentration, CFU means Colony Forming Unit, and 40p means 0.04mL.

In the above, a preferred embodiment of the present invention has been described, but those skilled in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. will be able Therefore, it should be understood that the embodiment described above is illustrative in all respects and not restrictive.

10; diaper 100; pad
110; top sheet 120; diffusion layer
130; absorbent pad 131; composite fiber
133a, 133b; super absorbent polymer 135a, 135b; Non-woven
140; protective sheet 200; waist fastening

Claims (1)

A pad 100 that wraps around the wearer's genitals and anus and protrudes forward and backward of the waist, and a waist fixing means provided on both front and rear sides of the pad 100 to fix the pad 100 to the waist ( 200) is composed of,
The pad 100 is located under the upper sheet 110, the upper sheet 110, which is in close contact with the wearer's genitals and anus to transmit urine, secretions, or feces, and urine or secretions transmitted from the upper sheet 110, or A diffusion layer 120 for passing stool, an absorbent pad 130 positioned under the diffusion layer 120 and absorbing and storing urine or secretions or feces transmitted through the diffusion layer 120, and the absorbent pad 130 in the lower portion and a protective sheet 140 that is provided and prevents the urine, secretions, or feces absorbed and stored in the absorbent pad 130 from leaking to the outside;
The diffusion layer 120 further includes a diffusion coating layer formed by applying the diffusion coating liquid composition on the diffusion layer 120 and drying it, wherein the diffusion coating liquid composition is 20 to 30 parts by weight of a biomass polyurethane resin, 10 to 20 parts by weight of a TPV resin It is included in a weight ratio of 3 to 7 parts by weight of hoesaengi hatban extract, 5 to 10 parts by weight of red pepper root extract, 1 to 3 parts by weight of inorganic extract, 2 to 6 parts by weight of ethylene glycol and 0.1 to 1 part by weight of isocyanate,
The biomass polyurethane resin is prepared and mixed in a ratio of 1 mol (mol) of dicarboxylic acid and 1.5 to 2.0 mol (mol) of polyol, and then 10 to Polyester polyol is synthesized by performing a condensation reaction for 20 hours, but the dicarboxylic acid is adipic acid or succinic acid. Any one or more selected from is used, The polyol is selected from the group consisting of 1,6-hexanediol (1,6-Hexanediol), 1,3-propanediol (1,3-Propanediol), and poly tetramethylene ether glycol Any one or more is used, and 60 to 80 parts by weight of the polyester polyol, 10 to 20 parts by weight of an organic solvent, 20 to 30 parts by weight of a bio polyfunctional polyol compound, and 5 to 15 parts by weight of an isocyanate By adding 0.1 to 0.5 parts by weight of an initiator and reacting at a temperature of 130 to 150° C. for 5 to 7 hours, a biomass polyurethane resin is prepared, and the organic solvent is toluene, methyl ethyl ketone ), ethyl acetate, acetone, and at least one selected from the group consisting of dimethylformamide is used, and the bio polyfunctional polyol compound has a weight-average molecular weight of 3,000 to 6,000 g/mol of a bio-polyfunctional polyol compound is used, and the radical initiator is any one selected from benzoyl peroxide or azobisisobutyronitrile The above is used, and the prepared biomass polyurethane resin has a weight-average molecular weight of 30,000 to 50,000 g/mol,
The inorganic extract is prepared by mixing 1 to 10 parts by weight of biotite extract, 5 to 15 parts by weight of ocher extract, and 10 to 20 parts by weight of illite extract,
The absorbent pad 130 includes a composite fiber 131, super absorbent polymers 133a and 133b positioned on both sides of the composite fiber 131, and super absorbent polymers 133a and 133b. ) including non-woven fabrics (135a, 135b) located on both sides,
The super absorbent polymer (133a, 133b) contains 80 to 120 parts by weight of a water-soluble ethylenically unsaturated monomer, 20 to 40 parts by weight of a cellulose compound, 1 to 10 parts by weight of a carboxy (C1-C5) alkyl chitosan, A mixed solution is prepared in a weight ratio of 0.5 to 2.5 parts by weight of grapefruit seed extract, 5 to 15 parts by weight of a hydrophilic additive, and 1 to 3 parts by weight of a crosslinking agent, and 500 to 700 parts by weight of water is added to the mixed solution and then stirred, 0.1 to 1 part by weight of a polymerization initiator is added to the mixed solution in which water is added and stirred to form a polymer, wherein the polymerization initiator is 2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide (2,4,6-trimethyl -benzoyl-trimethyl phosphine oxide) is used, and the polymer is dried at a temperature of 80 to 90° C., and then the dried polymer is pulverized to have a particle diameter of 10 to 300 μm.

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