KR0138205B1 - Disposable absorbent product indicating the urination of an infant - Google Patents

Abstract

The present invention relates to a disposable absorbent product for indicating the urination state of the infant. Summary of the Invention The present invention provides a disposable caregiver by adding a substance reactive to urine to the above components in a disposable absorbent product comprising a downy pulp layer or the like between a liquid permeable top sheet and a liquid impermeable back sheet. Will tell the time to change diapers.

Description

Disposable absorbent products that indicate urination status in infants

1 is an external perspective view of a disposable absorbent article according to the present invention.

2 is an enlarged cross-sectional view showing main parts of the disposable absorbent article according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: disposable absorbent product, 2: liquid impermeable back sheet,

3: liquid permeable top sheet, 4: absorption core,

5: urine reaction site, 6: fluffy pulp layer

The present invention relates to a disposable absorbent product for indicating the urination state of the infant, and more specifically, the liquid permeable top sheet, liquid impermeable back sheet, Fluffy Pulp, etc. The present invention relates to a disposable absorbent product having an effect of determining the diaper change time of an infant by instructing the urination state of the infant by adding a substance that reacts with urine to the disposable absorbent product of the infant.

In the present invention, the disposable absorbent product refers to a product that absorbs body fluids excreted by various physiological actions, that is, a product that absorbs urine and feces secretions, menstrual secretions and vaginal secretions. Refers to disposable diapers, sanitary napkins, or pantyliners used by infants or adults.

In the prior art, U.S. Patent No. 4,022,211 has been patented as a wetness indicator by mixing a water-soluble, harvestable color change material with an absorber pad. In this patent, the pigment material may be applied to the transparent impermeable backsheet or the permeable backsheet of the diaper. When the pigment material is wet by urine, the pigment material becomes invisible. The pigment material may be used alone or in combination with a suitable binder or isolated mediator. In addition, the pigment material refers to a water-soluble dye (dye) in a water-soluble polyvinyl alcohol.

In US Pat. No. 3,675,654, the indicator refers to a dyeing material mixed with a diluted masking material, such as a water-soluble dyeing material having a high dyeing power or a Talcum powder. When reacted with urine, the dye material melts and the dye solution is visually observed through the permeable back sheet of the diaper.

U. S. Patent No. 3,731, 685 describes a technique for diapers or surgical garments having streaks filled with chemicals that change color in response to moisture.

U. S. Patent No. 3,952, 746 discloses a disposable absorbent foam comprising moisture indicating stripes that react with moisture while wearing a diaper.

In the conventional techniques as described above, the dyeing material is merely a technique using a characteristic that the color disappears or melts in response to urine.

The present invention is designed to prevent skin bark due to long-term wearing of the diaper by containing a substance that changes color in response to urine in such a disposable absorbent product to easily recognize the diaper changing time during urination and urination of infants It is about a product.

In the present invention, as a substance reacting with urine, bromine phenol blue and derivatives thereof are used, and as reaction aids, acids of citric acid and tartaric acid are used. Bromphenol blue is useful as a pH indicator that shows yellow (Yellow color) below pH 3 and blue (blue color) above pH 4.5, and it is added to disposable absorbent products as a urinary substance using this property. .

Table 1 Molecular formula of Bromphenol blue

The amount of Bromphenol blue, a urine-reactive substance used in the present invention, is dissolved in 0.0001% to 20% in a solvent, added to disposable absorbent products, and acidic acids such as Citric acid and Tartaric acid are used to maintain a pH of 3.0 or less. It is characterized by containing a sufficient amount so that the initial color becomes a white-yellow color.

Urine, which is produced in the kidney and stored in the bladder and is then excreted in vitro after a certain period of time, varies from pH 4.5 to 8.0 under normal conditions, and is markedly changed by various conditions such as fever other than food and exercise. There is this.

The present invention is a disposable absorbent product consisting of a liquid permeable top sheet, a liquid impermeable back sheet, fluffy pulp, etc. in the component of the infant by diagnosing the urination state by adding a substance that changes color in response to urine It provides a disposable absorbent product, characterized in that it is designed to recognize the replacement time to prevent skin bark due to long time wearing of the diaper.

The liquid permeable topsheet in the present invention is known for use in conventional disposable absorbent articles and the most commonly used liquid permeable topsheet is nonwoven. Fluffy pulp is made of fluffy by processing wood pulp and is a hydrophilic absorbent material that absorbs secretions. Liquid impermeable backsheets are also known to be used in conventional disposable absorbent products and generally used are non-breathable waterproof films, breathable waterproof films and biodegradable waterproof films, and laminated nonwoven fabrics on such liquid impermeable backsheets. Laminate can also be used.

The present invention uses a conventional liquid permeable topsheet, a fluffy pulp, and a liquid impermeable backsheet as a cast material, and other auxiliary compositions as well known as the following, that is, tissue In underwear, such as adhesive tape or fastening buttons, front tape, frontal tape, thigh or waist elastic cuffs (barrier cuff, leg standing cuff), adhesives (hot melt, glue, etc.) The above-mentioned urine-reactive substance is added to a conventional disposable absorbent product which optionally uses a fixing system, etc.

There may be a number of methods for adding the urine-reacting substance used in the present invention to a conventional disposable absorbent product.

(1) Method to be contained during liquid permeable top sheet manufacturing

(2) Method to contain at the time of manufacture of downy pulp

(3) Method to include in the production of Barrier Cuff

(4) Method to contain at the time of tissue manufacture

(5) Method to be included in the manufacture of disposable absorbent product

The method of the above (1) to (5) refers to the addition of a urine-reactive substance in the preparation of each composition, and more specifically, using a liquid permeable top sheet, a fluffy pulp, a coagulation band, a tissue already containing the urine-reactive substance. Disposable absorbent products are also included in the present invention.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 and 2 schematically show an embodiment of the present invention.

Disposable absorbent product (1) comprises a downy pulp layer (6) and a super absorbent polymer (Super absorbent) responsible for the absorption of body fluids excreted by physiological application between the liquid impermeable backsheet (2) and the liquid permeable top sheet (3). It consists of an absorption core (4) which consists of a polymer. The present invention is a disposable absorbent product that is effective to determine the urination state of infants by changing the color of urine during urination by adding urine reactant Bromphenol blue and the reaction aid Acid to the absorbent core and liquid impervious backsheet. In the present invention, the liquid impervious backsheet should be transparent so that the color change of the urine reactant can be visually easily detected, and the urine reactant and the reaction aid should contain a sufficient amount to be easily developed by urine.

In Examples 3 to 10 of Table 1, Bromphenol blue, a urine reaction substance, was dissolved in a 50% alcohol solution (mixing water and alcohol at 50:50), and 1 ml of the indicator solution was applied to the diaper to react urine to observe color change. It is one content. Citric acid was dissolved to 2% as a reaction aid, and the pH of the solution was lower than 3.0.

TABLE 1

In addition, the present invention is a disposable absorbent product that is effective to determine the urination state of the infant by changing the color by the urine during urination by adding a urine reaction substance to the liquid permeable top sheet. In this case, urine-reactive substances should be used because they are in direct contact with the skin.

The present invention is an effective product for determining the diaper change time by recognizing the urination state of the infant to the guardian by changing the color of urine during urination by adding such a urine-reactive substance to the disposable absorbent product.

The present invention described in detail above is a disposable absorbent product characterized in that it is a disposable absorbent product for visually recognizing the color change of the urination state of the infant in response to urine, ie, Bromphenol blue and its derivatives. It is a new concept of disposable absorbent product that can not only increase the product value through awareness but also provide the caregivers with information about when to change diapers.

Claims (13)

Disposable absorbent product consisting of a fluffy pulp layer, etc., between the liquid permeable top sheet and the liquid impermeable back sheet, by adding a substance reactive to urine to the above components to determine the urination status of the infant, thereby prompting the caregiver to change diapers. Disposable absorbent product, characterized in that directed. 2. The disposable absorbent product of claim 1, wherein the urine-reacting substance uses Bromphenol blue and derivatives thereof, and the reaction adjuvant uses acids such that the urine-reacting substance maintains pH 3 to maintain pale yellow color. The disposable absorbent product according to claim 2, wherein citric acid, which is excellent in skin safety, is used among acids. The disposable product according to claim 2, wherein Tartaric acid, which is excellent in skin safety, is used among acids. The disposable absorbent article of claim 1 wherein the method of adding a urine reactant to the disposable absorbent article is included in the manufacture of a liquid permeable top sheet. The disposable absorbent article of claim 1 wherein the method of adding a urine reactant to the disposable absorbent article is included in the manufacture of downy pulp. The disposable absorbent article of claim 1, wherein the method of adding the urine-reactive substance to the disposable absorbent article is included in the manufacture of the coagulation band. The disposable absorbent article of claim 1, wherein the method of adding the urine-reactive substance to the disposable absorbent article is included in tissue manufacturing. The disposable absorbent article of claim 1, wherein the urine reactant is located in the absorbent core and the liquid impermeable backsheet. The disposable absorbent product according to claim 2, wherein Bromphenol blue and its derivatives are dissolved in 0.0001% to 20% in a solvent. 10. The disposable absorbent article as set forth in claim 9, wherein the liquid impermeable backsheet is a transparent sheet for visually and easily visually discoloring urine reacting substances by urine. The disposable absorbent article of claim 1, wherein the disposable absorbent article is placed on the upper permeable back sheet so that the discoloration of the urine reacting substance can be visually easily observed. The product according to any one of claims 1 or 5 to 8, wherein the disposable absorbent product is a disposable diaper or a sanitary napkin used by an infant or an adult.