KR20060099329A - Diaper having paper fasten tape - Google Patents

Abstract

The present invention relates to a disposable diaper comprising a liquid permeable topsheet, a liquid impermeable backsheet, a body portion comprising an absorbent body disposed between the topsheet and the backsheet, and a first waist region and a second waist region. One end is attached to the waist area or the second waist area, and the fasten tape used for fixing the diaper when the disposable diaper is worn is composed of a paper component, so that the user is soft It gives a sense of touch, significantly reduces skin irritation, emphasizes the natural feeling, improves aesthetic satisfaction than other materials, and provides a disposable diaper that can reduce environmental pollution during disposal through the use of natural materials.

Diaper, fastener, panson tape, paper

Description

Disposable diapers with PASON tape made of paper {Diaper having paper fasten tape}

1 is a plan view showing the unfolded state of the diaper according to an embodiment of the present invention,

2 is a partial cross-sectional view taken along the line II ′ of FIG. 1;

3 is a cross-sectional view showing an embodiment of a fasten tape according to the present invention, and

4 and 5a, b, and c are cross-sectional views showing another embodiment of the Fasten Tape of the present invention.

**** Explanation of symbols for the main parts of the drawing ****

1: Absorbent Core

2: Backsheet Nonwoven of Liquid Impermeable Backsheet

3: Backsheet Film of Liquid Impermeable Back Sheet

4: liquid impermeable backsheet

5: Barrier Cuff 6: Fluffy Pulp

7: Super Absorbent Polymer (SAP)

8: liquid permeable top sheet (Cover Stock)

9: Barr Cuff Elastic 10: Tissue

11: Leg Elastic 12: Front Waist Band

13: Back Waist Band

14: Fasten Tape Backing Material

15: first fixing member 15a: adhesive 15b: hook

16: Release Tape Backing Material

17: Release Tape Adhesive Part

18: handle tab 19: second fixing member

20: first waist area 21: second waist area

22: distal edge of the waist region

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a disposable diaper having a pason tape using paper or an improved material, wherein paper or coating or adding other materials to a fasten tape used as a means of re-adhesion in panty-type disposable diapers. The present invention relates to a disposable diaper formed of a piece of paper, which has improved wearing feeling and aesthetics.

In general, disposable diapers are products that absorb body fluids excreted by physiological action. More specifically, diapers used by infants, diapers used by incontinents, and women's sanitary napkins (Sanitary Napkin) Etc.

Disposable diapers generally have a liquid-impermeable backsheet and a liquid-permeable topsheet, interposed therebetween to absorb the wearer's excrement, to improve the fit of the wearer's thighs and ultimately prevent the excretion from leaking out. , Barrier Cuff to improve the appearance image (Barrier Cuff), may also include a leg elastic (Leg Elastic) to prevent the side glands. In addition, it includes a waist band (Waist band) and a fastening means (Closure System) for improving the fit of the waist portion.

Absorbents of disposable diapers typically consist of Fluffy Pulp, Super Absorbent Polymer (SAP), Tissue, etc., and quickly remove feces passing through liquid impermeable top sheet. And retains the absorbed excreta to prevent it from being absorbed back into the skin.

Liquid-permeable topsheets are made of synthetic non-woven fabrics or apertured films so that body fluids can quickly pass through the absorbent body. Synthetic nonwoven fabrics are usually used by hydrophilic treatment of hydrophobic fibers in order to quickly deliver the body fluid absorbed into the absorbent body.

The liquid impervious back sheet prevents body fluids absorbed by disposable diapers from leaking underneath the absorber to contaminate the wearer's clothing or the surrounding environment.It mainly uses polyethylene film and adheres the nonwoven fabric to the polyethylene film. It also improves the softness of.

And it includes a fastening means to be worn and maintained on the disposable diaper so configured. Each material is also adhesively fixed by hot melt adhesive, heat fusion or other bonding method.

Disposable diapers are progressing in the direction of improving the convenience of wearing in order to meet the basic performance, as one method for this has emerged ultra-thin disposable diapers made thinner absorber. An easy way to make ultra-thin disposable diapers is to use less amount of fluffy pulp that takes up a lot of volume, and to use super absorbent polymer (SAP).

One of the parts that the user most contacts with the skin while using a disposable diaper is the fixation system. The fastening system currently used in disposable diapers includes a high temperature melt type adhesive coating and an adhesive system of a polymer film, and a mechanical fastening system that combines a polymer molding form called a hook and a loop made of a polymer fiber. have.

Among them, the adhesive system consists of Fasten Tape, which attaches disposable diapers, and Release Tape, which helps to attach the Parson Tape to disposable diapers. It is attached and can be divided into Y-bonds and non-Y-bonds depending on whether the tape and the release tape are adhered. The Y bond is expressed as such because the bonded form is Y-shaped.

As a tape that frequently contacts the wearer's skin after wearing a disposable diaper, most of the disposable diapers use a polymer film or nonwoven fabric such as polypropylene as a backing material of the tape.

When using a polymer film such as polypropylene as the base of the parson tape, the user's feeling is not soft and causes skin irritation (scratching or scuffing), and it does not satisfy the user's or purchaser's emotion because it gives a feeling of vinyl. There is this.

In addition, when the nonwoven fabric is used as the base material of the parson tape, the material of the nonwoven fabric is also a polymer fiber, and this also has a problem that it is not sufficiently soft because a thin film is coated to increase its functionality.

It is an object of the present invention to prevent the skin irritation of the diaper user and to give a natural feeling by applying a substrate or a substrate that improves the paper to the substrate of the panson tape to solve the problem of the pason tape used in such disposable diapers To provide a disposable diaper.

Disposable diaper of the present invention for achieving the above object, a liquid permeable top sheet, a liquid impermeable back sheet, a body portion including an absorbent body disposed between the top sheet and the back sheet and the first waist area and the second waist In the disposable diaper composed of a region, one end is attached to the first waist region or the second waist region, and a fasten tape used to fix the diaper when the disposable diaper is worn is composed of a paper component.

The parson tape is preferably composed of a paper sheet having a basis weight of 60 g / m ² , and the paper sheet is surface-treated with a strength enhancer or a water resistance enhancer.

The panson tape may have a first fixing member formed on a bottom of the diaper to fix the diaper, and the first fixing member may be formed of a polymer melt adhesive. The polymer melt adhesive is preferably a styrene-butadiene-styrene block copolymer (SBS Block Copolymer).

According to another embodiment, the pason tape may have a first fixing member formed as a hook to fix the diaper by mechanical fastening.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a plan view showing an unfolded state of a disposable diaper to which the present invention is applied, and FIG. 2 is a partial cross-sectional view of the disposable diaper of FIG. 1 taken along line II ′. 3 to 5 are cross-sectional views showing an embodiment of the pason tape according to the present invention. Figure 3 is a cross-sectional view showing an embodiment in which the adhesive is attached to the pason tape, Figure 4 is attached to the pason tape of the present invention is attached to the hook (hook) which is a mechanical fastening means. 5 is sectional drawing which shows the various form of the pason tape of this invention.

With reference to FIG. 1 and FIG. 2, the structure of a disposable diaper is demonstrated. As shown in the figure, the disposable diaper has a second waist region 21 and a crotch portion of the disposable diaper positioned at the back waist of the user, and a first waist region 20 of the disposable diaper positioned at the front waist of the user. It has the appearance of hourglass type separated by. The appearance of the disposable diaper does not necessarily have to be symmetrical in left and right and front and rear, but preferably has a left and right symmetrical structure.

As shown, the present invention inserts the absorber 1 between the liquid impermeable backsheet 4 and the liquid permeable top sheet 7 to be fixed using a hot melt adhesive, and is leaked on the left and right sides outside the absorber 1. As the prevention means, the solidification band 5 is formed to form a pocket that primarily confines the body fluid which is separated from the absorber 1. The back sheet 4 is generally composed of a nonwoven fabric 2 and a waterproof film 3.

 However, there is still a possibility of leakage of body fluids leaving the absorber 1 and the coagulation band 5, and in order to prevent this, a secondary pocket is formed by the leg band 11, so that the disposable diaper is a baby body type. It may also be more tightly coupled to, reducing the possibility of leakage. In addition, as an improved technique, the stiffening band 5 may be applied in duplicate and the leg band 11 may be omitted.

Disposable diapers are applied to the user's body after applying the fastening means so that the worn diaper can be maintained in a certain form on the baby body and apply a waistband to enhance the function of the disposable diaper or to have an additional effect.

The waistband is formed by adhering an elastic body to the distal end 22 of each of the first waist region 20 and the second waist region 21 of the disposable diaper, and the length (parallel to the longitudinal center line) may be the same or two parts. Due to the characteristics of the first waist region may be longer, the waist band may be applied to only one portion of the first waist region 20 and the second waist region 21.

In general, the waistband is mainly composed of polyurethane foam, polyurethane film, and polyethylene film. Recently, a polyurethane elastic body or elastic yarn is used as the waistband. For elastic yarns, polyurethane spandex or natural rubber is used.

With reference to Figures 1 and 3 to 5 will be described in more detail the fastening means of the disposable diaper according to the present invention.

As shown, the fastening means of the disposable diaper forms a second fixing member 19 in the second waist region portion 21 on the back seat surface of the disposable diaper, and the second fixing member is called a landing member. do. In addition, the diaper is fixed by forming a first fixing member 15 that can be engaged with the second fixing member 19 in the first waist region 20 of the disposable diaper. The first fixing member 15 may support itself, but generally supports the backing material to perform its function. The base material which supports the 1st fixing member 15 is called the Fasten Tape Backing Material (14).

The Fasten Tape Backing Material (14) should have a holding force of more than a certain number of tabs of its own and should not cause skin irritation to the user due to conventional polymer materials.

The parson tape 14 according to the present invention is characterized by giving the user a soft feel and eco-friendly feeling by using paper which is a natural material.

The paper constituting the parson tape 14 is made of pulp obtained from a plant as a main raw material and pretreated to be suitable for the intended use. The paper constituting the parson tape 14 may additionally be surface treated to suit the application. The surface treatment process includes a surface treatment process in which a thin paper is applied to the surface of the paper with a paper enhancer for enhancing the strength of the paper or a water resistance enhancer for preventing moisture from penetrating into the paper.

The first fixing member 15 can maintain the bonding method in two ways. First is adhesive coating method. The adhesive method may be formed by adhesively coating a high-temperature melt type on a polymer film or by coating a pressure-sensitive adhesive in the form of a solvent. The second is a mechanical closure system. In other words, a hook that is a mechanical fastening system can be used.

Therefore, when the first fixing member 15a is formed in the form of a polymer film made of an adhesive coating, the second fixing member 19 should be a vinyl film type made of polypropylene, and the like. When the hook system 15b is a hook system, the second fixing member 19 may be manufactured by a knitted method or a polymer extrusion method using a polymer fiber. This second fixing member 19 is referred to as a loop type second fixing member 19.

FIG. 3 is a partial cutaway view schematically showing the configuration of a fasten tape backing material 14 and a first fastening member 15a to which an adhesive fastening system is applied. As shown, the paper tape pattern 14 according to the present invention is adhesively coated with a first fixing part 15a composed of an adhesive and attached to the outer surface of the back sheet 4. The release tape 16 is attached to one side of the inner surface of the back sheet 4 by the release tape adhesive surface 17. A handle tab 18 is formed at the other end of the backing sheet 4 instead of the rear sheet 4 attaching end so as to be conveniently operated when detached.

4 shows a cross sectional view of a pason tape to which a hook of a mechanical closure system is applied. As shown in the drawing, the hook-type first fixing member 15b is fixed to the parson tape 14. In this case, the second fixing member 19 is formed of a loop composed of a polymer nonwoven fabric or a woven fabric.

5A, 5B and 5C are cross-sectional views showing embodiments of the first fixing member 15 in various forms. 5A is a view showing a first fixing member 15a formed of an adhesive, and FIG. 5B is a view showing a first fixing member 15b having a hook type to which a mechanical closure system is applied. The first fixing member 15b in the form of a hook is fixed to the parson tape 14 by an adhesive means. 5C is a view showing a state in which the first fixing member 15c having a hook shape is directly fixed to the parson tape 14.

The parson tape 14 shown in FIGS. 5A, 5B, and C are all made of paper or post-treated paper material.

The first fixing member 15 is positioned at the distal end of the first waist region 20 and the second fixing member 19 is positioned on the back sheet 4 at the distal end of the second waist region 21 of the disposable diaper. Therefore, in order to use a disposable diaper, the first fixing member 15 is fixed to the second fixing member 19 so that the user can wear it. In use, grasp the handle tab 18 and separate the panse tape 14 from the release tape, and then fix the first fixing member 15 to the second fixing member 19. The panson tape 14 is then fixed on the backsheet 4 at the end of the second waist region 21 so that the diaper is worn by the user. Since the parson tape 14 is made of a paper material, there is a holding power of a certain level or more, and a conventional polymer material does not cause skin irritation to the user and provides a soft fit to the user.

Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples.

Example 1

In a conventional disposable diaper including a liquid permeable topsheet, a liquid impermeable backsheet, an absorbent body and a waist elastic body, the first fixing member 15a is an adhesive system made of a hot melt adhesive, and is fastened by Faston Tape Baking Material, The material of 14) is a paper sheet having a basis weight of 60 g / m ² , and the parson tape is attached to the liquid impermeable back sheet of the first waist region 20. The first fixing member 15a has a styrene-butadiene-styrene block copolymer (SBS Block Copolymer) as a main component.

Comparative Example 1

In a conventional disposable diaper including a liquid permeable topsheet, a liquid impermeable backsheet, an absorbent body and a waist elastic body, the first fixing member 15 is an adhesive system made of a hot melt adhesive and fasten tape baking. Material) is a polypropylene film with a basis weight of 40 g / m ² .

The actual wearing satisfaction survey of the disposable diaper manufactured by the Example and Comparative Example 1 was carried out with a baby weight of 10 ~ 15Kg to 200 consumers and the results are shown in Table 1 below.

<Consumer Practical Use Evaluation>

1. Evaluation criteria: Evaluation of wearing satisfaction of the fastening means (softness and skin irritation)

2. Evaluation method: Distribute the product of Example 1 and Comparative Example 1 to consumers and use each product for 3 days or more, and then evaluate the followings.

Q) It may be soft when attaching or detaching the fastening means.

   It is good to be irritated to the skin after tightening.

3. Evaluation results (5-point scale)

1 point (very bad)-2 points (bad)-3 points (normal)-4 points (excellent)-5 points (very good)

Table 1) Consumer Use Evaluation Results

division Softness Skin irritation Comparative Example 1 3.0 2.7 Example 1 4.3 4.4

In the above embodiment, when the base material of the parson tape was used as the paper material, all of the softness and less skin irritation of the material than the parson tape using the material of the film were excellent evaluation of 4.0 or more.

As described above, the use of a paper-based Parson tape base material significantly reduces skin irritation and emphasizes the natural feel, improving the aesthetic satisfaction than other materials. When used, it is easily destroyed by moisture when disposed, and contributes to some extent so as not to disturb the flow of water or air in the soil.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention attached to the claims. will be.

According to the present invention, the use of a paper-based parson tape base material in a disposable diaper gives the user a soft touch, significantly reducing skin irritation, emphasizing the natural feeling, improving aesthetic satisfaction than other materials, and using natural materials. Through this, it is possible to reduce the environmental pollution during disposal.

Claims (6)

A disposable diaper composed of a liquid permeable topsheet, a liquid impermeable backsheet, a body comprising an absorbent body disposed between the topsheet and the backsheet, and a first waist region and a second waist region, One end is attached to the first waist region or the second waist region, disposable disposable including a paper-based pason tape, characterized in that the fastening tape (fasten tape) used for fixing the diaper when the disposable diaper is worn with a paper component diaper. The method of claim 1, The pason tape is a disposable diaper comprising a pason tape of paper material, characterized in that consisting of a paper sheet (Paper Sheet) of basis weight 60g / m ² . The method of claim 2, The paper sheet is a disposable diaper comprising a paper-based pason tape, characterized in that the surface treatment with a strength enhancer or a water resistance improver. The method of claim 1 The pason tape is a disposable diaper comprising a paper-based pason tape, characterized in that the first fixing member is formed on the bottom surface for fixing the diaper, the first fixing member is made of a polymer melt adhesive. The method of claim 4, wherein The polymer melt adhesive is a styrene-butadiene-styrene block copolymer (SBS Block Copolymer), characterized in that the disposable diaper comprising a pason tape of paper material. The method of claim 1, The pason tape is a disposable diaper comprising a pason tape of paper material, characterized in that the first fixing member is formed by a hook (Hook) to secure the diaper by mechanical fastening.

Images