KR20080032923A - A manufacturing method of disposable diaper - Google Patents

Abstract

A manufacturing method of a disposable diaper is provided to protect a user's skin against eruption due to the diaper by adding or placing selectively mixture of bio-ceramic in each layer of the diaper. A diaper includes a rear non-woven fabric(2), a waterproof sheet, a liquid permeable upper non-woven fabric, a liquid permeable center non-woven fabric, an absorbent core, a super absorbent polymer and a pulp(5). A bio-ceramic is mixed into the filling area of the absorbent core, the pulp and the high absorbent resin. The bio-ceramic is formed by mixing clay mineral into quartz and feldspar. The diameter of the bio-ceramic is formed to be more than 0.2 micrometers and less than 21 micrometers. The powder of the bio-ceramic is provided on the non-woven fabric layers with a gravure printing.

Description

A manufacturing method of disposable diaper with improved physiological function

1 is a general plan view of a diaper implemented by applying the method of manufacturing a disposable diaper with improved physiological function of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a perspective view of the diaper of FIG.

Figure 4 is a photograph showing various examples of diaper rash by using a conventional diaper showing the problem to be implemented by the present invention.

Figure 5 is a graph showing the diaper rash state of children using a diaper according to the manufacturing method of disposable diapers with improved physiological function of the present invention.

Figure 6 is a photograph showing the state over time of the diaper rash state of the pediatric group and non-use pediatric group using the diaper according to the improved method of manufacturing a disposable diaper of the physiological function of the present invention.

Figure 7 is a chart showing the growth of the pediatric and non-use group of children using a diaper using the method of producing a disposable diaper with improved physiological function of the present invention.

8 is a diagram of an experiment comparing the milk intake of the pediatric group and the non-use pediatric group using a diaper using the method of producing a disposable diaper with improved physiological function of the present invention.

9 is a chart of an experiment comparing the blood pressure and pulse of the pediatric group and the non-use pediatric group using the diaper using the method of producing a disposable diaper with improved physiological function of the present invention.

10 is a chart of the experiment comparing the body temperature change of the pediatric group and non-use pediatric group using a diaper using the method of producing a disposable diaper with improved physiological function of the present invention.

Figure 11 is a photograph of the post-use state of the pediatric group and non-use pediatric group using a diaper using the method of manufacturing a disposable diaper with improved physiological function of the present invention.

Explanation of symbols on the main parts of the drawings

1: Absorbent core

2: (liquid impermeable) backside nonwoven fabric

3: (liquid impermeable) back breathable waterproof sheet

4: barrier cuff

5: fluff pulps

6: super absorbent polymers (SAP)

7: (Liquid Permeable) Upper Nonwoven Fabric

8: (liquid permeable) center nonwoven fabric

9: leg elastics

10: pulp tissues

11: barrier cuff elastics

12: fastening tape

13: waist elastics

14: frontal tape

The present invention relates to a method for producing a disposable diaper with improved physiological function, and more particularly, to a disposable absorbent product, in particular a diaper, to which a mixed bioceramic material is added, and which relates to a liquid permeable top sheet or other nonwoven fabric. The present invention relates to a method for producing a disposable diaper having a skin protection function by adding bioceramic to an enamel absorbent core by a certain technology, and having an antibacterial, deodorant and enzyme or bacteria adsorption capacity that stimulates the skin.

The ideal aspect of the disposable diaper is the holding power to prevent the leakage of excretion of infants and children and maintain the excretion inside, and at the same time minimize the skin irritation of infants and children to minimize skin irritation. irrigation).

In general, the top sheet of the diaper is a part directly contacting the wearer's skin, and air-though non-woven fabric, hi-loft or ADL (acquisition & distribution layer) is mainly used. Barrier cuffs are widely used in spun nonwoven fabrics.

Absorption core having most of the excretion absorbs the use of conventional fluff pulp (fluff pulp) is a trend that is deteriorated, instead, the content of super absorbent resin (SAP) is used to increase the absorption capacity and wear comfort.

In addition to the efficacy of the disposable diaper from this functional point of view, the interest in the industry is to provide a preventive measure against various skin problems that are generated and predicted when wearing disposable diapers.

In view of the above, various attempts and techniques have been devised to minimize skin troubles in children and children.

The following are known techniques for preventive methods for skin troubles according to disposable diaper wear.

There are several methods known in the art to inhibit the action of fecal enzymes on the skin. Particularly, according to the technique disclosed in Korean Patent Publication No. 2002-0009553, "Composition for absorbing product and use method for sequestering skin irritant," WO 99/45974 discloses the use of an absorbent product as a protease inhibitor in preventing diaper dermatitis. have.

Inhibitors are defined as any substance that inhibits protease activity in seven in vitro assays for defined substances.

These inhibitors need to meet one or more of the seven criteria for IC50 (concentration that inhibits 50% enzyme activity) and reversibly or irreversibly inhibit the hydrolysis of one or more proteases.

WO 99/26610 discloses the use of absorbent products as lipase inhibitors in the prevention of diaper dermatitis. These aforementioned methods of inhibiting the action of digestive enzymes on the skin are limited in that dispersing the inhibitor in the skin may cause side effects by inhibiting endogenous enzymes that are important for normal skin function.

For example, it is known that topical application of cholesterol sulfate, a potent serine protease inhibitor, inhibits skin proteases responsible for normal exfoliation (J. Invest. Dermatol. 11 1: 189-193, 1998).

Abnormally dry or dry skin may be due to topical treatment of protease inhibitors that can diffuse into the skin. Therefore, there is a need for a substance that does not penetrate the skin surface and prevents exogenous enzymes such as excretion enzymes from degrading the proteins in the skin.

WO 99/46316 discloses the production of polymer inhibitors that inhibit skin irritation mediated by fecal proteases. These polymers do not penetrate the skin surface, but still exert their action by directly inhibiting the activity of enzymes on other substances.

A composition is disclosed which adsorbs and inactivates fecal enzymes thereby preventing them from penetrating the skin.

PCT publication WO97 / 38735 and US Pat. No. 5,869,033 disclose the use of lipophilic clays, such as activated quaternium-18 bentonite, to prevent diaper rash by absorbing and inactivating fecal proteinases. .

These clays are produced by modifying well known clays with long chain organic amphoteric compounds such as long chain quaternary amines. Diapers containing lipophilic clays dispersed in diaper fabrics or superabsorbent polymers incorporating lipophilic clays have been proposed. The ability of unmodified clay to adsorb fecal enzymes is not described.

Lipophilic clays have been incorporated into a variety of pharmaceutically suitable vehicles such as lotions, emulsions, creams, gels and other aqueous vehicles. However, this vehicle must be inert to lipophilic clay, and therefore must be free of substances that bind to clay and inactivate its ability to bind fecal enzymes.

In particular, materials having a hydrocarbon chain length of at least C-8 should be excluded from the composition. Such limitations define, for example, the range of lipophilic skin health enhancers that can improve skin barrier function and moisturize and / or protect skin.

Various lipophilic compositions have been described to prevent diaper rash. Typically, blocking creams, lotions or ointments containing these lipophilic skin health enhancers are used to provide a barrier to the skin and to treat skin symptoms such as diaper rash.

Typical lipophilic skin health enhancers include petrolatum, mineral oil, natural oils and fatty acids. While these compositions can improve the barrier properties of the skin, in many instances, applying these chemicals to the skin can be messy and inconvenient.

They are also commonly used only when diaper rash is visually seen. Diaper liners can be treated with lipophilic skin health enhancers such as petrolatum that can be delivered to the skin through normal diaper use. Once delivered to the skin, the preparation of the diaper liner can provide a barrier to feces and urine.

These formulations may require high concentrations of petrolact to be sufficient for delivery to the skin for health promotion. High concentrations of petrolatum can be messy, soft to the touch, and can impair the fluid handling properties of absorbent products such as diapers. Slow penetration of petrolatum into the skin allows the formulation to be applied on the skin and on clothing and other materials.

Based on the aforementioned limitations, there is a need for compositions that are compatible with lipophilic compositions that can adsorb stimulants, such as fecal enzymes in biological fluids, and improve skin health by other mechanisms. None of the above mentioned methods for preventing diaper rash has found a combination of lipophilic chemicals and particulate agents to adsorb enzymes to prevent dermatitis such as diaper rash. It is also argued that the ability of unmodified clay to bind fecal enzymes has not been described previously.

In addition, "disposable diaper applying ocher treated nonwoven fabric" and Korean Patent No. 10-0515317, Patent Publication No. 10-2004-0092351, Utility Model 20-0328936, etc., claim an antibacterial deodorizing effect by adding ocher,

In Utility Models 20-0251674 and 20-0271841, etc., the same effect as above is claimed by adding charcoal, and in Patent Publication Nos. 10-2004-0088008, Utility Models 20-0381172, 20-0374950, 20-0373785, etc. Silver nano silver may be added to claim the effect,

Patent Registration 10-0387420 claim the above effects by adding a herbal material,

"Disposable absorbent product" of Korean Patent No. 1992-0010923 is a non-metallic inorganic material synthesized by mixing a fine powder of oxide ceramics such as silica, alumina, sodium oxide, potassium oxide, calcium oxide, magnesium oxide and iron oxide and performing a high temperature heat treatment process. Known as so-called far-infrared radiation ceramics, the addition of bio-ceramic to conventional disposable absorbent products inhibits the production of ammonia, a decomposition product of urine, to prevent skin irritation and dermatitis, as well as urine secretions, menstrual secretions or To suppress the discomfort generated from vaginal discharge,

In US Pat. No. 5,192,277, the extent to which the far-infrared radiating ceramic is described as having excellent antibacterial and deodorizing function is a technology belonging to the invention.

Taken together, all the above technologies are divided into two types of current technologies for preventing diaper rash, which are frequently caused by the use of disposable diapers.

(1) deodorization or antimicrobial activity using the porous structure of inorganic mineral minerals,

(2) It is a generally accepted technique to obtain the effect by using a lipophilic skin protectant such as International Publication No. WO1997 / 05909.

Current trends in the art are shifting to research on products using inorganic clay minerals such as ocher or zeolite in lipophilic skin care products.

When comparing the composition ratio of these materials, silica (SiO ₂ ) accounts for the highest proportion (a study on the characteristics of raw minerals and rocks used as far-infrared radiators-Korea Resource Research Institute 1996).

It is an object of the present invention to solve the above problems, by providing an optimal manufacturing method for selectively seating or adding a bioceramic mixture to each layer layer of a disposable diaper which is known to provide maximum protection of the wearer's skin from diaper rash. It is.

"Bioceramic" is employed in the method of manufacturing a disposable diaper with improved physiological function of the present invention is not a collection of clay minerals introduced in US Patent 5,972,815 "Bioceramic matter", etc.

Surface-curved state by obtaining the maximum surface area per unit weight of ceramics, a fine ceramic powder made by pulverizing the average particle size from 0.2 μm to less than 21 μm centered on quartz and feldspar extracted from porous granite (pegmatite) And porosity to maximize the ability to adsorb the enzymes that stimulate the skin and antibacterial and deodorant and skin stimulation, as well as to various oil and inorganic pollutants generated from the excretion discharged by physiological action. .

In particular, the minimum particle size is limited to 0.2 μm because the smaller nano-sized powders penetrate the skin and accumulate in the skin.

Quartz, which is a main component of "bioceramic" used in the method for producing a disposable diaper with improved physiological function of the present invention, is also used as a cosmetic raw material.

It has the ability to stick cosmetics on the skin for a long time, UV light blocking, ointment ingredients and skin moisture control In addition, in US Pat. No. 6,086,924, "Skin Care Composition", silica powder, another form of quartz, is recommended as a treatment for skin diseases such as acne.

A method of applying such a well-known and well-known bioceramic to a diaper for selectively adopting the present invention will be described through the configuration of the general diaper of FIGS.

The conventional diaper 100 has an absorbent core 1, which is a main absorbent of infant and child droppings in the center, and has a bottom surface of the absorbent core 1 to prevent the penetration of moisture into the duvet or the like. The liquid impermeable and breathable back breathable waterproof sheet 3 is disposed to increase the air permeability above the liquid impermeable back nonwoven fabric 2 and the back nonwoven fabric 2.

In addition, the upper part of the absorbent core 1 has a liquid permeable upper nonwoven fabric 7 into which oil and child droppings enter and a liquid permeable center nonwoven fabric 8 for maintaining the shape of the absorbent core 1 as a cover. Have

The absorbent core 1 is inherent in the fluff pulps 5, and super absorbent polymers (SAP) 4 are disposed on the center nonwoven fabric 8 at the bottom of the absorbent core 1; have.

In the figure, 4 is a barrier cuff to prevent the side from being pushed to the side of the absorbent core 1 and to prevent the leakage of excreted to the side, and the barrier cuff elastics 11 are formed as barrier cuffs 4. ) To impart transverse elasticity to maintain shape. 13 is waist elastics for providing elasticity to the waist of infants and children, 9 is leg elastics for reducing friction on the leg side, and 12 and 14 fastening tapes. ) And frontal tape, 10 are pulp tissues.

Method for producing a disposable diaper of the improved physiological function of the present invention applied to the diaper 100 is as follows.

[Manufacturing method]

The amount of bioceramic to the weight of the nonwoven fabric applied to the diaper 100, that is, the non-woven fabric including the liquid impermeable back nonwoven fabric 2, the liquid permeable upper nonwoven fabric 7 and the liquid permeable center nonwoven fabric 8 is weighted. 1.0% or more and 100.0% or less compared to the application, depending on the need.

The treatment method of various bioceramic known to each of the nonwoven fabrics described above is a method of passing the nonwoven fabric through a bioceramic deposition tank to fix the nonwoven fabric. However, a more preferred method is a master batch method and a printing technique, and these methods are widely used in the prior art. It is becoming.

Second, the powdered bioceramic is made into beads having a size of 0.5 mm to 2 mm and implanted into the absorbent core (1) and the downy pulp (5) together with the superabsorbent resin (6).

The third method is to make a liquid impermeable back breathable waterproof sheet 3 by adding bioceramic instead of calcium carbonate (CaCo ₃ ) used as a filler for air permeation.

The bioceramic employed above is a desired characteristic of the experimentally obtained bioceramic obtained by adding some clay minerals to quartz and feldspar of microcrystalline granite, and further adjusting the particle size of the bioceramic to 0.2 μm or more and μm or less. .

Therefore, the manufacturing method specified by the present invention,

A liquid impermeable back nonwoven fabric 2 and a liquid impermeable and breathable back breathable waterproof sheet 3 for increasing air permeability above the back nonwoven fabric 2, wherein the waterproof sheet 3 and the infant and child Superabsorbent polymers (SAP) superposed in the absorbent core 1 and the absorbent core 1 between the liquid permeable upper nonwoven fabric 7 and the liquid permeable center nonwoven fabric 8 into which the excreta of In the diaper (100) having filled in) and fluffy pulp (5);

Bio-ceramic mixed with quartz mineral and feldspar added to quartz and feldspar of coarse granite to obtain antimicrobial deodorant effect in the filling area of the absorbent core (1)-downy pulp (5)-super absorbent polymer (6) Manufactured by

The particle size of the bioceramic is processed to 0.2 micron or more to 21 micron or less,

It is a basic manufacturing method to provide the bioceramic powder by gravure printing on a nonwoven layer such as a liquid impermeable upper nonwoven fabric, a liquid permeable upper nonwoven fabric, and a liquid permeable upper nonwoven fabric.

In addition, the bioceramic powder can be provided by filling the filling area of the absorbent core (1), the downy pulp (5), and the super absorbent polymer (6) with beads between 0.5 mm and 2 mm. It may be an alternative manufacturing method.

In addition, the same action effect can be obtained by adding bioceramic powder instead of calcium carbonate (Caco ₃ ) used as a filler in the liquid impermeable back sheet.

[Example of Experiment Result]

The following experimental example using the improved method of manufacturing a disposable diaper of the physiological function of the present invention was made under the direction of Dr. Jung-gu Song of the Department of Family Medicine, Daejeon Sun Hospital.

An example of the photo on the upper right of FIG. 4 is a general diaper rash, the lower part is a picture of pediatric atopic dermatitis, the lower left picture is a secondary infection by a fungus, and the upper left picture is infected with Candida.

Common causes of diaper rash are divided into 1-continuous wetting, 2-blood circulation disorder, 3-immune system disturbance, 4- diarrhea, 5-bacteria,

The symptoms are 1-erythema, 2-sweat eruption, 3-heat release, 4-pain pain, 5- metabolic dysfunction.

Observing the order of occurrence of diaper rash when wearing a disposable diaper is as follows.

a, a diaper binder or a band is pressed to form a blood circulation disorder.

b, the diaper wearing area will stay on the skin for a long time in the water by sweat or urine.

c, As a result, the skin softened by moisture is weak to friction.

d, soft skin, which is weak to friction, is a skin where skin has been pressed by the constant friction on the edge of a diaper or a binder, and the diaper is rubbed on the part such as the hips, and it is called diaperrash and friction between skin and skin in the genital circumference, crotch and abdomen. It is called Intertrigo.

e, the skin condition is red, sweat erupts and is accompanied by a slight fever before the skin is peeled off.

f, the characteristics of the rash is a symptom caused by physical friction or crushing of the skin, and the infant or child is uncomfortable, but usually does not involve pain, so parents do not notice the physical condition by crying. Treatment should return to normal within 24 hours with proper skin dryness and cleanliness, and the skin's defensive function should be strengthened in a repeated manner.

2. Atopic Dermatitis

a, hereditary, both parents have 80% of allergy experience, one side of the probability is 60%.

b, contrary to AIDS, is a hypersensitivity disease caused by the worrying immune system and is affected by food and the environment.

c, a type of eczema caused by dry skin.

d, occurs in the groin around the legs and genitals and spreads to the diaper wearing area.

e, Proper hydration is helpful for treatment, but excessive sweating is harmful.

f, worse at night, and develop asthma and allergic rhinitis when adults.

Based on the medical basis of diaper rash as described above, the results of clinical experiments with the method of manufacturing disposable diapers with improved physiological function of the present invention for one month each in the early summer and early winter as follows.

FIG. 5 shows that diaper rash began to improve from 5 days (12 days) after the a, b, and c groups were worn, and continued to improve. In the course, group A had worsened rash due to some cold symptoms between 14 and 18 days.

The photo of FIG. 6 lists a part of parents photographing the change state of diaper rash in children of each group. Picture A is a 7-month-old girl, picture B is a 6-month-old girl, and picture C is a boy who has had an anus surgery.

In the table of Figure 7 is to compare the growth rate of the pediatric groups and the like without a comparison group is insufficient to draw an accurate conclusion.

The table of FIG. 8 may be considered to have a favorable effect on growth when inferred as an experiment comparing food intake divided into an experimental group and a comparative group over December and January of that year,

9 is a table showing the changes in blood pressure and pulse of the children,

The table of FIG. 10 observes the change in body temperature, and when the diaper rash improves, the body temperature is stabilized.

The photograph of FIG. 11 is a photograph of skin conditions such as a rash when a diaper is used and a diaper for which a bioceramic is added.

The medical findings will be noted if more specific experiments continue, but the clinical results show that the changes in the skin condition of children have improved.

When wearing a disposable diaper with the addition of bioceramic prepared according to the method for producing a disposable diaper with improved physiological function of the present invention,

The antimicrobial effect is expected to improve the porosity and surface area of the selected bioceramic and experimental results. The antimicrobial effect of diaper rash such as pruritus and erythema is expected.

Claims (3)

A liquid impermeable back nonwoven fabric 2 and a liquid impermeable and breathable back breathable waterproof sheet 3 for increasing air permeability above the back nonwoven fabric 2, wherein the waterproof sheet 3 and the infant and child Superabsorbent polymers (SAP) superposed in the absorbent core 1 and the absorbent core 1 between the liquid permeable upper nonwoven fabric 7 and the liquid permeable center nonwoven fabric 8 into which the excreta of In the diaper (100) having filled in) and fluffy pulp (5); Bio-ceramic mixed with quartz mineral and feldspar added to quartz and feldspar of coarse granite to obtain antimicrobial deodorant effect in the filling area of the absorbent core (1)-downy pulp (5)-super absorbent polymer (6) To manufacture, The particle size of the bioceramic is processed to 0.2 micron or more to 21 micron or less, The method of manufacturing a disposable diaper with improved physiological function, characterized in that the bioceramic powder is provided by gravure printing on a non-woven layer such as a liquid impermeable upper nonwoven fabric, a liquid permeable upper nonwoven fabric, and a liquid permeable upper nonwoven fabric.  The method of claim 1, The bioceramic powder may be a method of filling and filling the filling area of the absorbent core (1)-down pulp (5)-super absorbent resin (6) with beads between 0.5 mm and 2 mm. Method for producing a disposable diaper with improved physiological function. The method of claim 1, Method for producing a disposable diaper with improved physiological function, characterized in that the bioceramic powder may be prepared by adding instead of calcium carbonate (Caco ₃ ) used as a filler in the liquid impermeable back sheet.

Images