JP2003210516A - Panty-liner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panty-liner which solves the problems such as a leak to panties, losing a shape, absorbability, humidity, a rash, dried feeling, or uncomfortable feeling to a wearer. <P>SOLUTION: The panty-liner has a structure which is composed of a top face sheet made of a liquid permeable nonwoven fabric, absorbers, and a back face sheet made of a water-repellent nonwoven fabric. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panty liner, which is a significant improvement over a conventional panty liner.

[0002]

2. Description of the Related Art A panty liner, which is a thin absorbent article, is mainly on the market, which is mainly intended for female-specific menstrual cycle secretions (hereinafter referred to as "things"). Usually, the amount of excretion of vaginal discharge is as small as 0.3 to 2 g, so the current commercial product uses thinness as a selling point, and the absorbent body is also designed with an absorption capacity that matches it, so people with a large amount of vaginal discharge and sweat. Thus, in the summer, etc., there were problems such as leakage to panties, loss of shape, stuffiness, rash, absorbency, and dry feeling. Further, unlike urine and menstrual blood, the vaginal discharge is often in a gel state, and in the currently commercially available products, a gel-like substance remains on the surface sheet, increasing the discomfort of the wearer. The product composition is
Like absorbent articles such as normal sanitary napkins, liquid-permeable topsheets and absorbers (but not nonwovens made of fluffed pulp, but sheets such as nonwoven fabrics and tissues) and liquid-impermeable It is made of a flexible back sheet, and a breathable sheet is used as the polyolefin back sheet, but the problems of stuffiness and rash have not been completely solved.

[0003]

The leak described above,
The inventors of the present invention have made extensive studies to solve various problems such as shape loss, stuffiness, rash, absorbency, and discomfort such as dry feeling. As a result, the above problems as described below have been solved. is there.

[0004]

The present invention relates to a panty liner comprising a top sheet made of a liquid-permeable nonwoven fabric, an absorber and a back sheet made of a liquid-repellent nonwoven fabric. In the present invention, since the liquid repellent non-woven fabric is used for the back sheet, it has excellent breathability and enhances the effect of preventing stuffiness and rash. Further, the absorbent body of the present invention is a cellulose fiber such as fluffed pulp alone or a mixture of this cellulose fiber and a heat fusion fiber such as polyethylene or polypropylene. By using this mixture,
The shape retention property of the absorber is further strengthened, and the shape of the absorbent body is prevented from deforming due to twisting, misalignment, etc. Further, the present invention relates to forming perforations or recesses in a dot shape from the surface sheet side. The perforations or recesses enhance the absorption power, and especially when there are many drops or gel-like substances are contained in the perforations or recesses, the surface sheet side is kept in a dry state, and the discomfort of the wearer can be reduced. Further, in the present invention, perforations or recesses such as dots are formed by embossing or perforating.

Further, according to the present invention, the depth in the thickness direction of perforations or recesses is set to a maximum of 1/3 of the total thickness of the product from the end of the panty liner product in the lengthwise direction to each one-third of its total length in the longitudinal direction. , The number and size of the perforations or recesses is less than and smaller than the number and size of the perforations or recesses in the remaining full length central portion 1/3. Furthermore, the present invention relates to the addition of a polymeric absorbent or deodorant to the perforations or recesses. Further, in the present invention, a flavone type is used as the above deodorant. The present invention also includes a surface sheet,
A moisturizer or lotion that enhances the softening effect is applied, and the wearing feeling is better. Furthermore, the present invention can reduce the wetted area during absorption. Further, the present invention can prevent the shape from being lost during liquid absorption.

[0006]

By the above, all problems such as leakage, loss of shape, stuffiness, rash, absorbability, dry feeling, etc., which have been problems in the past, can be solved.

[0007]

EXAMPLES The present invention will be described below with reference to examples.
The present invention is not limited to these examples.

For the product of the present invention and the conventional product, a comparison test was conducted on the comparison of the wetted area during absorption and the deformation of the product. (1) Comparison of wet area during absorption (wet area of absorbent body when absorbing 1 ml of physiological saline) (2) Shape loss (After absorbing 1 ml of physiological saline, attach it to your underwear 10 times by hand, and the number of times you lose your shape when leaning left and right) Note) 1/10 means that the shape was lost in the first time after 10 times.

[0009]

The liquid absorption capacity of the absorbent made of cellulose fibers and the pinpoint absorption by the perforations or recesses of the absorbent increases the absorption amount and absorption rate, and even if the amount of the deposit is large, it does not leak. -When a mixture of cellulose fibers and heat-sealing fibers is used for the absorbent body, the shape retention of the absorbent body is further strengthened, and the shape of the absorbent body such as twisting and shifting does not get lost. Since the surface of the absorbent body is provided with perforations or recesses, the gel-like material of the deposit can be accommodated in the perforations or recesses, keeping the dry feeling and reducing the discomfort of the wearer.・ Perforations or recesses are shallow at both ends 1/3 in the longitudinal direction,
Since the diameter is small and the number is small, the flexibility of the absorbent body that touches the skin is not impaired. -Since the back sheet uses a liquid repellent non-woven fabric, it has excellent breathability and a high effect of preventing stuffiness and rashes.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a panty liner according to the present invention.

FIG. 2 is a partial sectional view of an embodiment of a panty liner according to the present invention.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a partial sectional view of a conventional panty liner.

5 is a sectional view taken along line CC of FIG.

6 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

1 ... Panty liner 2 ... Perforations or recesses provided in the panty liner from the front surface sheet side to the back surface sheet side, and the center portion of the perforation or recessed portion that divides the liner into three in the longitudinal direction. Out of the perforations or recesses provided on the sheet side, the perforations or recesses on both end sides which divide the liner into three equal parts in the longitudinal direction 4 ... Panty liner surface sheet 4 '... Conventional product panty liner surface sheet 5 ... Panty liner back surface Sheet 5 '... Back sheet 6 of conventional panty liner 6 Absorber 6'of panty liner Absorber 7 of conventional panty liner 7 Polymer absorbent polymer 8 in absorbent body 9 Deodorant 9 in absorbent body 9 Cellulosic fiber that constitutes the absorber

Claims (10)

[Claims] 1. A panty liner comprising a top sheet made of a liquid-permeable nonwoven fabric, an absorber and a back sheet made of a liquid-repellent nonwoven fabric. 2. A cellulose fiber such as pulp whose absorbent material is fluffed, or a cellulose fiber and polyethylene,
The panty liner according to claim 1, which is a mixture with a heat fusion fiber such as polypropylene. 3. The panty liner according to claim 1, wherein the surface sheet side is provided with dot-shaped perforations or recesses. 4. The panty liner according to claim 3, wherein perforations or recesses such as dots are formed by embossing or perforating. 5. The depth in the thickness direction of the perforations or recesses is set to a maximum of 1/3 of the total thickness of the panty liner product from the longitudinal end part to each 1/3 of its total length in the longitudinal direction, The panty liner according to any one of claims 1 to 4, wherein the number and size of the perforations or recesses are smaller and smaller than the number and size of the perforations or recesses in the remaining central portion 1/3 of the entire length. 6. The panty liner according to any one of claims 3 to 5, wherein a polymer absorbent and / or a deodorant is added to the absorbent body. 7. A flavone type is used as a deodorant.
Panty liner as described. 8. The surface sheet is coated with a moisturizer and / or lotion which enhances the softening effect.
The panty liner according to any one of 1 to 7. 9. The panty liner according to claim 1, which reduces a wetted area during absorption. 10. The panty liner according to any one of claims 1 to 8, which prevents shape loss during liquid absorption.