JPH08141014A - Finger sack for insertion of sanitary tampon and its production - Google Patents

Abstract

PURPOSE: To improve the touch of a finger sack tip to the skin by two-folding a hot meltable plastic film and forming the finger sack in such a manner that the folding line comes to the tip of the finger sack. CONSTITUTION: The hot meltable plastic film 10 of a thin and soft polyethylene film, etc., is two-plaited at a folding part 3 and the superposed films are fused at joining lines 4 at both right and left side edges to each other. The folding line 3 forms the tip of the finger sack 1 and the opposite sides thereof form free edges 6, 7 of the plaited films to form an opening 5 for finger insertion. The free edges 6, 7 are shifted forward and backward in the positions from each other to facilitate the insertion of the finger into the opening 5. This finger sack 1 is joined releasably to backing paper 2. The folded plastic films are supplied to the endless backing paper 2 and are continuously subjected to fusing and removing of the unnecessary parts at the time of production, by which the finger sack is produced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finger cot used when inserting a sanitary tampon into the vagina.

[0002]

2. Description of the Related Art A finger sack used when inserting a sanitary tampon into the vagina has been known. For example, in Japanese Utility Model Laid-Open No. 2-102221 and Japanese Patent Publication No. 4-39335, two resin films are superposed and heat-bonded to each other at the tip portion and the left and right side portions, and the heat-bonded portion is adhered. There is disclosed a finger sack which is melted and cut to form a finger insertion opening on the opposite side of the tip. In addition, a general sanitary tampon is a non-woven fabric made of water-absorbent fibers which is compression-molded into a columnar shape, and has a withdrawal string at its rear end.

[0003]

The heat-sealed portion of the finger sack of the prior art described above has a problem that it is generally solidified and has a bad texture. In addition, burrs remain on the melted part, which not only contributes to making the skin uncomfortable, but also easily gets entangled in the fiber tampon main body and the drawer string extending from it, so that it can be quickly inserted from the tampon after insertion. There is a problem that it becomes a hindrance when you release your finger. Therefore, in this kind of finger sack, it is desirable to minimize the heat-sealed portion and the fused portion.

Therefore, the present invention has an object to solve the above-mentioned problems of the prior art by bending the heat-fusible plastic film in two and setting the bending curve to the tip of the finger sack. ing.

[0005]

[Means for Solving the Problems] The present invention provides means for solving the above problems as follows.

In the finger sack for inserting a sanitary tampon according to the present invention, the heat-fusible plastic films are folded and overlapped in two and overlapped by two parallel heat-bonding lines intersecting the folding curve. Fuse the combined film,
The feature is that a finger insertion portion having an opening is formed on the opposite side of the folding curve at the portion surrounded by the folding curve and the two fusion lines.

The method for manufacturing a finger cot for inserting a sanitary tampon according to the present invention is characterized by including at least the following steps. (I) Bending the heat-fusible plastic film in two,
The process of overlapping. (Ii) A step of applying to the superposed films two thermal fusion bonding lines that intersect the folding curve and are parallel to each other. (Iii) A step of trimming the film either on the heat-sealing line or on the outer side thereof to form a finger sack having an insertion opening on the opposite side of the folding curve.

In one of the embodiments of the present invention, the manufacturing method includes a step of conforming a folding curve of a film to an arc-shaped curve of a forming die to form the finger sack tip portion in an arc shape. .

[0009]

In the finger sack for inserting a sanitary tampon configured as described above, the bent portion of the film serves as the leading end. This tip is smooth and feels good to the touch, and the fibers of the tampon body and the drawstring do not get caught in it.
Such a finger sack can be obtained by subjecting a heat-fusible plastic film, which is folded in two and superposed, to two heat-bonding lines which intersect the folding curve and are parallel to each other. In that case, if the folding curve of the film is shaped by conforming to the arc-shaped curve of the molding die, the tip portion of the finger sack can be arcuated so as to follow the shape of the finger.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of a finger sack for inserting a sanitary tampon and a method of manufacturing the same according to the present invention will be described below with reference to the accompanying drawings.

1 and 2 are a perspective view of a finger sack 1 and a sectional view taken along line II-II thereof. The finger sack 1 is made of a heat-fusible plastic film 10 such as a thin and flexible polyethylene film and is releasably joined to the mount 2. In the finger sack 1, a plastic film 10 is folded in two along a folding curve 3, and the superposed films are fused at joint lines 4 on both left and right edges. The folding curve 3 forms the tip of the finger sack 1, and on its opposite side the free edges 6, 7 of the folded film form an opening 5 for insertion. However, the free edges 6 and 7 are displaced from each other in the front-rear direction to facilitate the insertion of a finger into the opening 5.

FIG. 3 is a schematic view of a process for continuously producing the finger cot 1. In (A), a polyethylene film 10 having a thickness of 30 μm, which is bent at both left and right sides along bending lines 3a and 3b extending in the longitudinal direction, is continuously supplied onto an endless mount 2. Next, a fused wire 4 having a width of 2 mm and consisting of a pair of wires 4a and 4b extending in the width direction and parallel to each other is repeatedly applied to the bent and overlapped portions of the film 10 in the longitudinal direction to melt the overlapped film 10. To wear.
Then, the outer edge of the fusion bonding line 4 and the widthwise center of the film 10 are trimmed along the chain line 11. In (B), an unnecessary portion of the trimmed film 10 is removed from the mount 2 and only the finger sack 1 is left. The finger sack 1 is in a state in which the fusion bonding line 4 is detachably joined to the mount 2. In FIG. 3, both side portions of the film 10 are bent so that the pair of left and right finger sacks 1 are arranged to face each other on the backing sheet 2, but the film 10 has only one folding line 3a. You may make it bend. Further, if a small portion 25 of the free edge portion 7 of the finger sack 1 is melted and releasably joined to the mount 2, the insertion of the finger into the opening 5 becomes easier.

FIG. 4 is a schematic view of a manufacturing process of a mode different from that of FIG. In (A) of this step, the plate-shaped molding die 2
0 is used to shape the film 10. The mold 20 has juxtaposed finger-shaped portions 22 whose end portions 21 are shaped like arcs in a manner similar to a human fingertip.
Press the curve 3 of 0 from the inside. At that time, at least the vicinity of the folding curve 3 of the film 10 is heated and softened, or / and at least the tip 21 of the molding die 20 is heated, and the folding curve 3 repeats an arc along the molding die 20. Shape as you draw. Further, in order to facilitate the shaping, if necessary, an appropriate auxiliary shaping die for holding the film 10 together with the shaping die 20 is used. In the step (B), the released film 10 is supplied onto the mount 2, and after the fusion-bonding lines 4a and 4b are provided on both sides of the arc-shaped portion, trimming of a required shape is performed. In (C), an unnecessary portion of the trimmed film 10 is removed, and only the finger cot 1 is left on the mount 2. The finger sack 1 manufactured by this manufacturing process has an arcuate tip end, and therefore has a better wearing feeling than that of FIG. 1 and facilitates insertion of the tampon.

[0014]

Since the finger sack according to the present invention is formed by folding the tip of the finger sack, the part is smooth and does not irritate the skin. Further, since the fibrous tampon body and its withdrawal string are not entangled with each other, the tampon can be easily inserted.

[Brief description of drawings]

FIG. 1 is a perspective view of a finger cot for inserting a tampon.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a schematic view showing a manufacturing process of a finger cot.

FIG. 4 is a schematic view of a manufacturing process of an aspect different from that of FIG.

[Explanation of symbols]

 1 Finger sac for sanitary tampon insertion 3,3a, 3b Folding curve 4,4a, 4b Fusion line 5 Opening 10 Plastic film 20 Mold

Claims (3)

[Claims] 1. A heat-fusible plastic film is folded in two and superposed, and the superposed films are fused by two parallel thermal fusion lines intersecting the folding curve,
A finger sack for inserting a sanitary tampon, characterized in that a finger insertion portion having an opening is formed on an opposite side of the fold curve at a portion surrounded by the fold curve and the two fusion lines. 2. A method for manufacturing a finger sack for inserting a sanitary tampon, comprising at least the following steps. (I) Bending the heat-fusible plastic film in two,
The process of overlapping. (Ii) A step of applying two lines of thermal fusion bonding lines that intersect the folding curve and are parallel to each other to the above-mentioned laminated films. (Iii) A step of trimming the film either at the heat-sealing line or at an outer side thereof to form a finger sack having a finger insertion opening on the opposite side of the folding curve. 3. A step of forming a folding curve of the film into an arc shape by conforming to the arc-shaped curve of a forming die to form an arc shape, and applying each of the two heat-sealing lines to the left and right sides of the arc. The manufacturing method according to claim 2, comprising.