KR930001080B1 - Disposable absorbent products - Google Patents

Abstract

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Description

Disposable absorbent products

1 is an overall perspective view of the present invention.

2 is an enlarged sectional view taken along the line A-A of FIG. 1 of the present invention.

* Explanation of symbols for main parts of the drawings

1: Absorbent product 2: Surface layer

3: absorber layer 4: waterproof layer

5: plant extract 6: chlorophyllin

The present invention relates to an absorbent product in which hygiene is effectively achieved, and more particularly, to a disposable absorbent product utilized as a diaper for children, a sanitary sanitary napkin, and a pad for incontinence patients. The characteristics of these products are those that effectively absorb secretory fluids and reduce skin odor.

Disposable absorbent products often have side effects and odors such as diaper dermatitis and napkin dermatitis on or near the worn area.

This phenomenon is common in infants and incontinence patients. In the most frequent diaperitis cases, skin contact with stool, urine and endocrine secretions is usually the result of ammonia, bacteria, bacterial products, Candida albicans and urine. It is known to be caused by the activity of odors, proteins and delayed enzymes. Protein and lipolytic enzymes are closely related to the odor of urine. In other words, the increase in skin odor caused by ammonia in urine increases the activity of stool protein and lipolytic enzymes.

Therefore, by referring to the technology so far, various acidic substances or ammonia absorbents are added to an absorbent product or a diaper wearing part, and the purpose of this is to dry the worn part of the absorbent product to keep it as acidic as possible.

This is described in detail in a number of patents, including US Pat. No. 3707148. According to these data, a large amount of organic acid or inorganic acid is added to the center of the absorbent product (absorption layer 3). When the body fluid is absorbed by the absorbent layer 3, it is transferred to the surface by diffusion of an acidic substance. In the disposable absorbent product, the surface layer (2) is composed of hydrophilic material and hydrophobic material, and in the case of hydrophobic material, it is also made of non-woven fabric, which causes the transfer of absorbent material to the skin surface by dediffusion, which causes problems with such materials. do.

In addition, such disposable absorbent products may cause odors when body fluids stay in the absorbent layer 3 for a long time, and ammonia, hydrogen sulfide, and mergaptans are generated from physiological substances and excretory substances, and may be a source of odor as well as skin irritation. Therefore, it is necessary to effectively remove the cause of odor and cause of skin irritation and to control skin odor, which is safe for skin during skin leaching.

In the past, such absorbent products, as described above, by adding organic or inorganic acids to control the skin odor, Cu-chlorophyllin, activated carbon, zeolites, etc. are introduced into the absorbent layer 3 in the form of powder, particles, or fibers, depending on physical adsorption. Odor removal function is to have a odor removal function. However, the odor removal by controlling the odor or physical adsorption action is to put the odor remover and acidic substances separately, and the difficulty of the manufacturing method and the addition of a large amount of acid adsorbed to the deodorant lowers the absorbency of the absorption layer (3) and Problems with the stability of the skin still remain.

Types of materials that can be used as deodorant in disposable absorbent products include chemical physics deodorized by chemical reactions, adsorption materials and natural extracts by adsorption, enzymes by bacteria, antibacterial and bactericidal substances, etc. Natural materials are suitable when considered.

Therefore, the present inventors have conducted experiments on substances that are effective in removing odors among natural substances, and plant extracts such as baekbaekcho, dermis, local herb, green tea oak leaves, Na, Cu-chlorophyllin, etc. are effective in removing odors. In the case of plant extracts, the odor is low, and it is found that it is also effective in diapering when there is a skin connection. Also, the use of powder of these leaves instead of extracts has the same effect on deodorization. Plants that can be used as a deodorant include three hundred vines, dermis, local vinegar, green tea, oak leaves, etc., and extract only necessary ingredients by several extraction methods.

These plant extracts may be extracted with water, methanol, ethanol, organic solvents, but here, water and methanol, ethanol or a mixed solvent thereof is used. The extraction method is finely chopped before drying or after drying the leaf flies, and then immersed for 24-72 hours in 3-7 times the solvent. In order to speed up the extraction, the solvent is circulated in a circulating extractor. Green tea extract is heated to 30-45 ℃, local vinegar, dermis is extracted at room temperature, pressure is atmospheric pressure.

The resulting solution was filtered to form a concentrate up to 30% by evaporation under reduced pressure, and the concentrate was removed by cooling water using oily water, concentrated under reduced pressure until it was viscous, and freeze dried or dried under reduced pressure. Among these plants, the effects of green tea, local herb, dermis and Na, Cu-chlorophylline, and physiology will be described in detail in the following experimental examples and charts.

Experimental Example: This Experimental Example relates to a deodorant test for each sample.

Put 300 ml of purified water into a 500 ml Erlenmeyer flask, add a certain amount of malodor source solution to the use range of each detector tube, add the following amount to the sample, shake it for 30 minutes with a shaker at 30 ℃, and connect the detector tube to the glass tube. Using a detector, suction 100 milliliters of air in the flask to determine the odorous substance content. As odor sources, H2S, MeSH, NH3, TMA, styrene, acetaldehyde, etc. are known, but acidic odor sources H2S, alkaline NH, TMA were selected. At this time, the odor removal rate is calculated by the following equation.

Based on the above formula, the result of measuring the odor removal rate of each sample is shown in Table 1 below.

TABLE 1

* Detector: 1) for NH3; Gastec No. For 3M, 2) (CH3) 3N; Gastec No. 180, 3) for H 2 S; Gastec No. 4H.

As a result of the experiment, most plant extracts show good effect on alkaline odor source, but less effective on acid odor source, whereas Na, Cu-chloropyrin is effective on acid odor source. It is less effective against alkaline malodors. Therefore, plant extracts and chlorophyllin and most of the deodorizing power of plants can be properly blended to produce disposable absorbent products with excellent deodorizing power and excellent hygiene for acidic and alkaline whole odors.

Disposable absorbent articles consist of a surface layer (2), an absorbent layer (3), and a waterproof layer (4). The structure, shape and material of these absorbent products are listed in Fragrance JournalNo. 65, US Pat. No. 734,425, Japanese Patent No. 63-48916, which have detailed descriptions, which are incorporated herein by reference.

As the absorbent article 1 according to the present invention, the surface layer 2 and the absorbent layer 3 may be conventional ones. The absorbent layer 3 is located between the surface layer 2 and the waterproof layer 4 and must absorb a considerable amount of body secretion and water. Any of the high hygroscopic materials usually used in the absorbent article can be used in the absorbent article 1 of the present invention. Examples of use thereof include pulp, polyacrylate crosslinked product, starch-polyacrylate graft polymer, carboxymethylcellulose crosslinked product and the like.

The waterproof layer 4 is a hydrophobic material that is used to block the absorbent liquid from flowing outwards. An example thereof is polyethylene polypropylene film. The surface layer 2 is a nonwoven fabric, in which polyethylene-polypropylene composite fibers, polyethylene, polypropylene, rayon fibers, and the like are bonded to each other by a thermal fusion method or a chemical wet method.

This surface layer is suitably blended with hydrophilic and hydrophobic functional groups so as to feel a little dry feeling in the skin after permeation of body fluids and absorption of body fluids. In the present invention, the deodorant substance is applied to the surface layer 2 in several ways.

Plant extracts (5) and chlorophyllin (6) are different because they are applied to different materials to be located in different areas. In addition, the plant extract (5) of the deodorant substance may be used instead of a powder made of a leaf or the solution or powder state or the plant extract itself.

The first method is to apply methylcellulose (0.001-0.05% aqueous solution) to the plant extract (5) solution to make a slightly viscous solution, and then deposit the surface layer (2) and dry it. The top layer (2) and the absorbent layer (3) made by immersing the top surface in a chlorophyllin-methylcellulose solution and drying are used for absorbent products. Second, after applying hydroxyethylcellulose and polyvinyl alcohol solution to the back side, the plant extract and chlorophyllin powder are divided into respective zones, and the surface layer (2) made by spraying and drying is used for absorbent products. Third, the surface layer (2) is doubled and the outer layer is made of non-woven fabric which is relatively hydrophobic and the inside is relatively hydrophilic. Then, the plant extract powder or leaf powder is directly put between the two layers to be used for the absorbent product (1). .

1 is a perspective view showing a diaper as a disposable absorbent article 1 according to the present invention, and FIG. 2 is a cross-sectional view of its internal construction.

It demonstrates according to an accompanying drawing.

In FIG. 1, the disposable absorbent article 1 has a basic shape consisting of a waterproof layer 4 and a surface layer 2.

As the surface layer (2), the plant extract is evenly distributed on the surface or the back to show the deodorizing effect, and the dissolved plant extract (5) keeps the skin acidic when the body fluid is absorbed. In the absorbent layer 3, the body fluid is absorbed substantially, and the coating layer 7 is a fiber covering the absorbent layer 3. Na and Cu-chlorophyllin are mixed in the upper sheet and the middle sheet of the coating layer 7 in the central portion or the upper portion of the absorbent layer 3 to absorb the odor source which is not absorbed by the surface layer 2.

Example 1

Diapers for children

1. (1) 1.7 g of mixed solvent extract in ethanol and purified water of green tea, and (2) 98.3 g of hydroxy ethylcellulose (0.05% aqueous solution).

Stir the ingredients (1) and (2) above, and then mix 20,0 g of polyethylene-polypropylene composite oil in this solution for 1 hour and dry with hot air at 40 ℃.

2. 15 g of rayon fibers dissolved in 2.0 g of Na and Cu-chlorophyllin in 98.0 g of hydroxyethyl cellulose (0.05% aqueous solution) were immersed for 1 hour, and dried in a drier with hot air at 45 ° C.

The diaper is made by making (1) the surface layer (2) and (2) intermediate with the absorbent layer (3).

Example 2

Diapers for children

1. (1) 2.0 g0 of ethanol extract of green tea, (2) 3.0 g of purified water extract of local herbaceous acid, (3) 95.0 g of methylcellulose (0.03% aqueous solution).

After stirring the above (1) (2) (3) raw materials, and evenly mixed 25g of the surface layer (2) nonwoven fabric in this solution for 1 hour and dried in a drier with hot air at 50 ℃.

2. After dissolving 2.0 g of Na and Cu-chlorophyllin in 98.0 g of methyl cellulose (0.03% aqueous solution), dissolving 30 g of rayon fiber for 1 hour, and drying it in a dryer at 45 ° C. with hot air.

The diaper is made with (1) as the surface layer (2) and (2) positioned in the middle of the absorbent layer (3).

Example 3

Menstrual Absorber for Women

1. (1) 3.0 g of ethanol extract of green tea, (2) 4.0 g of purified water extract of dermis, (3) 93.8 g of hydroxyethylcellulose (0.1% aqueous solution).

After stirring the above (1) (2) (3) raw materials and evenly mixed, the solution is sprayed to the surface layer (2) at 0.05-0.17g / ㎠ and dried by hot air at 45-50 ℃.

2. Mix 3.5 g of Na and Cu-chlorophyllin with 96.5 g of polyvinyl alcohol (0.8% aqueous solution), spray 0.5 g / cm 2 onto rayon fibers or pulp, and dry hot air at 55 ° C.

(1) is the surface layer (2) and (2) is located in the upper portion of the middle of the absorbent layer (3) to make a sanitary napkin.

Example 4

Menstrual Absorber for Women

1. (1) 2.5 g of purified water extract of dermis, (2) 1.8 g of purified water extract of local herb, (3) 95.7 g of methyl cellulose (0.05% aqueous solution).

Manufacturing method is the same as in (1) of Example 3

2. 3.0 g of Na and Cu-chlorophyllin are mixed with 97 g of methyl cellulose (0.05% aqueous solution), sprayed at 0.02 g / cm 2 on the surface of the absorbent layer 3, and dried with hot air (45 ° C.).

The sanitary napkin is made with (1) and (2) as the surface layer 2 and the absorption layer 3, respectively.

Example 5

Incontinence Patient Pad

1. Grind the green tea leaf into powder below 10 ℃ and put the surface layer (2) non-woven in double so that 0.5g / cm2 is between these two layers. This lower surface layer is made of a natural hydrophilic fiber.

2. The absorbent material is mixed with the pulp so that Na and Cu-chlorophylline are 0.05-0.9g / cm 2 in the dispersion state, and the upper part of the absorbent layer 3 is placed.

Example 6

Incontinence Patient Pad

1. Grind the local soil and dermis into powder below 10 ℃, and put them in a 1: 1 ratio so that the surface layer (2) nonwoven is doubled and put 1g / ㎠ between the two layers. This surface underlayer is made of strong hydrophilic fibers.

2. The absorbent material is mixed with the pulp so that Na and Cu-chlorophylline become 0.1 g / cm 2 in the dispersion state, and the upper part of the absorbent layer 3 is placed.

Claims (3)

Disposable absorbent product characterized by using at least one of green tea, local herb, dermis extract or powder thereof and Na, Cu-chlorophylline together. The disposable absorbent article of claim 1, wherein the powder is powdered at 10 ° C. or less. The disposable absorbent product according to claim 1, wherein the extracts of the rust, local grass, and dermis are extracted using purified water, methanol, ethanol, or a mixture thereof.

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