JPH09238803A - Waterproof sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably restrain the occurrence of a stuffy state while waterproofness is provided by sticking a synthetic resin waterproof sheet to the back of a warp knitted double raschel knitting fabric in which an insert yarn is inserted between the surface and back knitting fabrics to form an air permeable layer with a designated thickness. SOLUTION: The waterproof sheet 1 is so constituted that a thin polyurethane sheet 7 is stuck to the back of a warp knitted double raschel knitting fabric 6 in which an insert yarn 4 is inserted between the right side and back side knitting fabric 2, 3 to form an air permeable layer 5 with a thickness of several milimeters. The double raschel knitting fabric 6 and the polyurethan sheet 7 are of a quilt or bed-size, and the polyurethan sheet 7 is stuck to the double raschel knitting fabric 6 all over the surface. The surface fabric 2 of the double raschel knitting fabric 6 is formed by a knitted fabric of a cotton yarn in which the net-like parts 8 are formed like stripes. The back fabric 3 is formed by a knitting fabric taking a polyester yarn as a raw material, and the insert yarn 4 made by a nylon monofilament is inserted between the surface fabric 2 and the back fabric 3 in such a manner as to form many loops.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof sheet to be laid on a bed or a futon as a measure against incontinence of an old man and night urine of a child.

[0002]

2. Description of the Related Art Conventionally, as a waterproof sheet used for incontinence or night urine, a waterproof sheet made of vinyl chloride or the like is attached to the back surface of a woven cloth or a non-woven cloth. By laying it on a pork etc., it prevents urine from penetrating into the futon.

[0003]

However, in the above-mentioned conventional waterproof sheets, since the waterproof sheet does not have air permeability, the woven cloth or the like is interposed between the waterproof sheet and the user, but the stuffiness does not occur. There is a problem in that it causes a discomfort to the user.

In view of the above situation, the present invention aims to provide a waterproof sheet which has a waterproof property by forming an air permeable layer on the upper surface of the waterproof sheet, while significantly suppressing the occurrence of stuffiness. It is what

[0005]

That is, the characteristic of the waterproof sheet of the present invention is that a waterproof knitted double russell knitted fabric in which an insertion thread is inserted between the front and back of the knitted fabric to form a ventilation layer having a predetermined thickness. It is where a synthetic resin waterproof sheet is attached to the back side.

It is also preferable that the outer material is made of a net-shaped knitted fabric made of cotton yarn, and the lining is made of a knitted material made of cotton yarn, and the outer material and the insertion yarn are combined. It is also preferable to use fiber yarn as a material.

Furthermore, the synthetic resin waterproof sheet may be formed of a polyurethane sheet or a foamed synthetic resin sheet.

[0008]

In the waterproof sheet of the present invention, since the outer material is a knitted fabric and the ventilation layer having a predetermined thickness is formed between the knitted fabric and the waterproof sheet, the body of the user and the waterproof sheet are separated from each other. It is possible to allow air to flow between them, which makes it possible to greatly suppress the occurrence of stuffiness while having the same waterproofing effect as the conventional one. And, when incontinence, urine collects on the waterproof sheet, but since a ventilation layer having a predetermined thickness is formed between the waterproof sheet and the outer material of the knitted fabric,
The user's body is not soaked in the urine, and discomfort can be greatly softened.

Further, by forming the above-mentioned outer material with cotton yarn, the feel of the skin is improved, and by making the knitted fabric into a net shape, it is possible to increase the air permeability. By forming the lining with cotton yarn and forming the outer fabric and the insertion yarn with synthetic fibers, the urine for incontinence can be included in the lining to make the outer fabric feel dry.

Further, by forming the synthetic resin waterproof sheet from polyurethane, it is possible to form a strong and thin waterproof layer, and by forming the synthetic resin waterproof sheet from the foamed synthetic resin sheet, cushioning properties can be imparted to the sheets. It is possible.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described.

FIG. 1 is a partial cross-sectional view showing a waterproof sheet according to an embodiment of the present invention. This waterproof sheet 1 has a thickness of several mm when an insertion thread 4 is inserted between a front material 2 and a backing material 3 of a knitted fabric. It has a structure in which a thin polyurethane sheet 7 is attached to the back surface of a warp knitted double russel knitted fabric 6 having a ventilation layer 5 formed on the outer surface.

The double raschel knitted fabric 6 and the polyurethane sheet 7 have a large area of a futon or a bed, and the polyurethane sheet 7 is entirely bonded to the double russel knitted fabric 6.

As shown in FIG. 2, the outer material 2 of the double Russell knitted fabric 6 is made of a cotton yarn knitted fabric in which a net-shaped portion 8 is formed in a stripe shape as shown in FIG. The number of the net-shaped portions 8 may be appropriately changed by arranging the net-shaped portions 8 on both sides of the sheet, or the sheet surface may be flat without any sheet. In addition, the lining 3 is made of a knitted fabric made of polyester yarn, and the insertion yarn 4 made of nylon monofilament is used as the outer fabric 2
And the lining 3 are inserted so as to form a large number of loops. The insertion thread 4 forms the ventilation layer 5 as shown in FIG. 1, but firmly supports the ventilation layer 5 so that the sheet 1 will not be crushed when a person sleeps.

The double Russell knitted fabric 6 of the above-mentioned sheet 1 employs a cotton yarn as the outer material 2. The outer material 2 is made of a synthetic fiber yarn such as nylon which dries quickly. At the same time, it is also preferable to configure the lining 3 with a knitted fabric made of a cotton yarn having a high water absorption property. Further, the polyurethane sheet 7 may be made of another waterproof sheet or a foamed synthetic resin sheet having a cushioning property.

In the waterproof sheet 1 of the embodiment of the present invention, however, the outer fabric 2 is a knitted fabric and the ventilation layer 5 having a predetermined thickness is formed between the knitted fabric and the waterproof sheet 7. Air can be circulated between the body of the user and the waterproof sheet 7, and thus it is possible to greatly suppress the occurrence of stuffiness while having the same waterproof effect as the conventional one.

Although urine collects on the waterproof sheet 7 during incontinence, since the ventilation layer 5 having a predetermined thickness is formed between the waterproof sheet 7 and the outer fabric 2 of the knitted fabric, the body of the user. It is possible to relieve discomfort greatly without being soaked in the urine.

Although the embodiment of the present invention has been described above, the thickness of the breathable layer is appropriately in the range of about 1 to 20 mm, and the size of the waterproof sheet 1 is appropriately changed, for example, for the lower half of the futon. Is possible.

[0019]

As described above, the waterproof sheet of the present invention is provided on the back surface of a warp knitted double raschel knitted fabric in which an insertion yarn is inserted between the front and back of the knitted fabric to form a ventilation layer of a predetermined thickness. A synthetic resin waterproof sheet is attached, and since the outer fabric is a knitted fabric and a ventilation layer having a predetermined thickness is formed between the knitted fabric and the waterproof sheet, the body of the user and the waterproof sheet are It becomes possible to circulate the air between them, which makes it possible to greatly suppress the occurrence of stuffiness while having the same waterproof effect as the conventional one.

Furthermore, urine collects on the waterproof sheet during incontinence, but since the ventilation layer having a predetermined thickness is formed between the waterproof sheet and the outer material of the knitted fabric, the body of the user is urine-treated. It has a remarkable effect that it greatly relieves discomfort without soaking in.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a waterproof sheet according to an embodiment of the present invention.

FIG. 2 is a partial plan view showing the waterproof sheet of the same embodiment.

[Explanation of symbols]

 1 Waterproof Sheet 2 Outer Material 3 Lining 4 Inserted Thread 5 Breathable Layer 6 Double Russell Knitted Fabric 7 Waterproof Sheet (Polyurethane Sheet) 8 Net Part

Claims (5)

[Claims] 1. A synthetic resin waterproof sheet is attached to the back surface of a warp knit double russel knitted fabric in which an insertion thread is inserted between the front and back of the knitted fabric to form a ventilation layer having a predetermined thickness. Waterproof sheets. 2. The waterproof sheet according to claim 1, wherein the outer material is a net-shaped knitted fabric made of cotton yarn. 3. The waterproof sheet according to claim 1, wherein the lining to which the waterproof sheet is attached is a knitted fabric made of cotton yarn, and the outer fabric and the inserted yarn are made of synthetic fiber yarn. 4. The waterproof sheet according to claim 1, wherein the synthetic resin waterproof sheet is a polyurethane sheet. 5. The waterproof sheet according to claim 1, 2, 3, or 4, wherein the synthetic resin waterproof sheet is a foamed synthetic resin sheet.