JPH0630826Y2 - Adhesive tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> This invention is an adhesive tape using a toughness supporting base material in which the thickness of at least one end in the length direction or the width direction is made thinner in the central part than that. As a tape for fixing and fixing paper diapers or fixing it to the skin of medical equipment, it has the advantages that it makes good contact with the skin and is gentle on the skin and does not damage the skin. It relates to a suitable adhesive tape.

<Prior Art and Problems Thereof> The applicant of the present invention has previously prepared a blend of polypropylene with one or more of ethylene-vinyl acetate copolymer, polyethylene or ethylene-propylene copolymer, and polypropylene. A film having a content of 5 to 75% by weight was proposed as a diaper tape base material (Japanese Patent Application No. 61-2).
No. 56089).

This proposal was made as a tape for diapers used in contact with the human body, paying attention to the texture and softness, etc. so as not to cause redness, rashes, or severe scratches on the skin of infants and young children. However, since the workability at the time of manufacturing the tape is also taken into consideration, it is a drawback that the base material is slightly hard.

<Means for Solving the Problems> This invention has been made as a result of studies to further improve the above-mentioned drawbacks.

That is, in the diaper tape of the invention described above, the rash and the severe scratch were zero in the actual monitor test by the infant, but the redness was not so much improved.

Therefore, as a result of studying to obtain an adhesive tape that is gentler to the skin when used as a diaper tape, the inventors of the present invention place importance on processability, and as a result, the portion of the adhesive tape that touches the skin in the length direction or the width direction is determined. It has been found that if it is made softer, defects such as redness can be improved.

That is, in this invention, the thickness of at least the opposite sides in the length direction or the width direction of the supporting base material having toughness is made thinner than that of the central part of the supporting base material to form a flexible thin layer end portion. An adhesive tape is provided in which an adhesive layer is provided on at least one surface of the supporting substrate.

<Operation> Particularly, in the case of a diaper tape, the edge of the diaper often comes into contact with the skin due to the displacement of the diaper, etc. Therefore, depending on the hardness of the edge of the diaper, the skin is likely to be red, rashed or severely scratched.

In addition, there is a risk that the corners of the tape may hurt not only the baby's hands but also the mother's hands when the diaper is attached and detached.

If the adhesive tape according to the present invention is used as a diaper tape, flexibility is imparted by making the thickness of the tape end portion that touches the skin of infants and mothers' hands smaller than the thickness of the central portion. Therefore, there is no possibility of causing redness or rash on the skin.

The present invention will be described below with reference to the accompanying drawings. FIG. 1 to FIG. 3 are sectional views showing an embodiment of an adhesive tape of the present invention, in which 1 is a tough support base material and 2 is the support base. The center portion 3 of the layer thickness of the material 1 is the flexible thin layer end portion of the supporting substrate 1. In the figure, 4 is an adhesive layer, and 5 is a release treatment layer which may be provided if necessary.

4 to 7 are perspective views of the adhesive tape of the present invention. FIG. 4 shows a mode in which both ends in the width direction of the support base 1 are thin layer ends 3, and FIG. A mode in which both ends in the length direction of the supporting base material 1 are thin layer ends 3, and FIGS. 5 and 7 show thin layer ends in both the length direction and the width direction of the supporting base material 1. 3 shows a mode set as 3.

FIG. 8 is an explanatory view showing an example in which the adhesive tape of the present invention is attached to a paper diaper B as a fastening and fixing fastener tape A.

In the adhesive tape of the present invention having the above-mentioned structure, as the material of the supporting base material 1 having toughness, non-woven fabric, thermoplastic resin film, rubber-based, synthetic resin-based foamed sheet and the like are preferable. , But not limited to these.

The thickness of the central portion of the supporting substrate 1 is generally 10 μm to 1 mm, but is not necessarily limited to this range.

Further, it is preferable that the thin layer portion at the end portion is thinner than the thickness at the central portion gradually or stepwise. In addition, it is desirable that the four corners of the supporting substrate 1 have a rounded shape.

Further, the adhesive constituting the adhesive layer 3 is not particularly limited, and a known adhesive represented by an acrylic adhesive, a rubber adhesive, or a styrene adhesive may be used, and the thickness thereof is 5
It is generally, but not limited to, about 500 μm.

<Effect of the device> The adhesive tape of this device has a thick central part and a waist,
It has excellent workability, and it has excellent softness on the skin because the opposite two or four sides of the four sides are thin and soft.
Even when used as a diaper tape, it was found that the irritation to the skin of infants and patients was very small.

[Brief description of drawings]

1 to 3 are sectional views showing an embodiment of the adhesive tape of the present invention, FIGS. 4 to 7 are perspective views of the adhesive tape of the present invention, and FIG. 8 is a fixing and fixing of the adhesive tape of the present invention. It is an explanatory view showing a diaper used as a tape for use. 1 ... Supporting base material having toughness 2 ... Central thick layer part of supporting base material 3 ... Thin layer end part of supporting base material 4 ... Adhesive layer, 5 ... Peeling treatment layer A ... Fastening Fixing tape, B ... Diaper

Claims (1)

[Scope of utility model registration request] 1. A flexible thin layer end portion is formed by making a thickness of at least opposite sides of a supporting base material having toughness in a length direction or a width direction smaller than that of a central portion of the supporting base material. An adhesive tape in which an adhesive layer is provided on at least one surface of the supporting substrate.