JPS598963Y2 - diaper cover - Google Patents

Description

[Detailed description of the invention] This invention relates to a diaper cover made by welding a velvet-type fastener used as a fastening device for a diaper cover with thermoplastic resin as an adhesive medium, and making the attachment part breathable. .

In the past, snaps were used as fasteners for diaper covers, but now velvet fasteners are being used for diaper covers because they are easy to fasten and release and can be adjusted to suit the waist circumference. There is a trend towards using it as a locking tool.

However, velvet-style fasteners are generally attached by sewing, and in this case, the sewing process is done manually by moving points, which not only takes a long time to process, but also leads to poor productivity. Because of the line stitching, the adhesion between the zipper and the diaper cover is poor, and what's more, the looped fibers of the zipper may be pulled out during repeated use, causing the base fabric itself to shrink and become deformed, or the base fabric may shrink when washed. However, it also had the disadvantage of being inferior in terms of durability.

A method was developed to attach thermoplastic resin to the entire back surface of the zipper and weld it to the diaper cover.This method solved the problems associated with sewing and improved productivity. Not only has the adhesiveness improved significantly, but the adhesion has also improved, including various designs, and the looped fibers have become more stable and durable, as well as being able to prevent shrinkage and deformation due to repeated use and shrinkage due to washing. It was something.

However, although the above method of attaching zippers by welding has various effects, by applying thermoplastic resin to the entire back surface, breathability is completely lost, and it is difficult to eliminate the discomfort caused by stuffiness when worn. It was something I couldn't get.

Also, from the perspective of focusing on the original function of a diaper cover, the crotch and butt areas of the cover must be shaped with the main purpose of preventing water leakage to the outside, and must be designed to be lively and breathable. The positions that can be attached are limited to the front part and the waist part, which is contradictory in that these parts are also the attachment positions for the fasteners.

Therefore, this project was researched and developed in view of the above-mentioned circumstances, and it is a diaper that has not been known yet, which provides breathability to the zipper attachment part without sacrificing the advantages of attaching the zipper by welding. The purpose is not to provide cover.

The gist of this proposal is that a large number of ventilation holes 3 are opened on the entire back surface of the base fabrics 1a and 2a that make up the velvet type fasteners 1 and 2, and a thermoplastic resin 4 is applied.
The velvet type fasteners 1 and 2 are welded to appropriate positions of the diaper cover 5 made of breathable material using the thermoplastic resin 4 as an adhesive.

Next, the present invention will be described in detail below based on embodiments shown in the drawings.

The velvet type fasteners 1 and 2 are made of knitted base fabrics 1a and 2 that are cheaper than fabrics and have elasticity and breathability.
On the surface of a, one is a female fastener 1 made of a countless number of fine loop-like fibers 1b made of synthetic resin, and the other is a male fastener 2, made of a countless number of fine hook-like fibers, and the combination thereof. It functions as a locking tool.

Then, on the back surface of the velvet type retainer 1, 2, a thermoplastic resin 4 with a large number of circular ventilation holes 3 as shown in FIG. 2 and a large number of polygonal holes as shown in FIG. The thermoplastic resin 4 with ventilation holes 3 drilled therein is applied to provide breathability, and since the breathability of the fasteners 1 and 2 itself can be effectively utilized, it is not necessary to carry out the implementation. Various aspects other than the examples are possible.

Then, the fasteners 1 and 2 shaped as described above are welded to appropriate positions such as the front part and the waist part of the diaper cover 5 using the thermoplastic resin 4 as an adhesive, and the diaper cover 5 is made of a ventilated material. The front and back fabrics 5 a and 5 a are formed by applying a water-repellent finish to a knitted fabric having elasticity and elasticity, and the welding method is performed by high frequency, ultrasonic waves, pressure heating, etc.

In the figure, numerals 7 and 7 indicate a crotch elastic band, 8 a waist elastic band, and 9, a double crotch elastic band.

Therefore, when attaching the fasteners 1 and 2, the fasteners 1 and 2 and the outer fabric 5a of the diaper cover 5 are coated with the thermoplastic resin 4 by molding the welded portions and using upper and lower edges.
By supporting and pressing the fasteners, welding can be performed all at once by surface machining, and since the attachment process is not a point movement process like sewing process, it is possible to significantly shorten the installation time of the fasteners 1 and 2, and Designs can be easily created by embossing various patterns such as animals and cartoons on the top and bottom.

In addition, when using the diaper cover 5 to which the above-mentioned fasteners 1 and 2 are attached, as shown in FIG. 5 front and back fabrics 5 a, 5 b
It allows outside air to flow in through the jacket, and it can be worn comfortably because it does not impair breathability.

Since this project is constructed as described above, fasteners 1 and 2 are
This not only has the effect of significantly improving the efficiency of the installation work, but also has various practical benefits such as improved design, improved installation adhesion, and prevention of uneven finishing due to individual differences.

In addition, a base fabric 1 constituting the velvet type fasteners 1 and 2 is used.
Since many ventilation holes 3 are made on the entire back surface of a and 2a and thermoplastic resin 4 is applied, the adhesion between the zipper and the diaper cover is improved, and there is no unevenness on the zipper, allowing male and female sex. Furthermore, the loop fibers will not be pulled out even if the diaper cover is used repeatedly, improving durability and providing breathability to the zipper attachment area. This has a remarkable effect.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the diaper cover of the present invention, Fig. 2 is a back view showing an embodiment of the fastener of the cover, Fig. 3 is a back view showing an embodiment of the fastener, and Fig. 4 is a front view showing the diaper cover of the present invention. Diagram A
- An enlarged sectional explanatory view taken along the line A, and FIG. 5 is a front view showing another embodiment of the diaper force bar according to the present invention. 1, 2... Velvet type fastener, 1a, 2
a... Base fabric, 3... Ventilation micropores, 4.
...Thermoplastic resin, 5...Diaper Kanoku

Claims (1)

[Scope of utility model registration request] Base fabrics 1a and 2 forming velvet type fasteners 1 and 2
A large number of fine ventilation holes 3 are opened on the entire back surface of a, and a thermoplastic resin 4 is applied thereto, and the same velvet type fasteners 1 and 2 are attached.
The diaper cover 5 is made of a breathable material and the thermoplastic resin 4 is welded to the appropriate position of the diaper cover 5 as an adhesive material.