JPH0426475Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a nonwoven fabric formed into a felt shape by heat-sealing fibers, bonding them via a thermoplastic resin, or bonding them with a synthetic resin adhesive. , or by adding flexibility to a woven fabric that has been processed with synthetic resins, various chemicals, etc.
The present invention relates to a fabric softening device used to improve texture, feel, etc.

[Conventional technology]

Nonwoven fabrics are made by arranging fibers in an undefined or fixed direction without going through a weaving process, and then bonding them together by heat fusion, adhesion with a thermoplastic resin, or adhesion with a synthetic resin adhesive. Manufactured by joining fibers together.

For this reason, when nonwoven fabrics have constituent fibers bonded to each other by heat fusion, some hardness remains at the fused contact points, and thermoplastic resin or synthetic resin adhesives In the case where the constituent fibers are bonded to each other, the properties of the resin itself remain in the manufactured fabric, which has the drawback of lacking flexibility. If a latex-based adhesive is used as an adhesive, the manufactured nonwoven fabric will have considerable flexibility, but on the other hand, it will have a rubbery texture and sticky feel, which will be inferior in terms of commercial value. It turns out.

In addition, fabrics formed by weaving fibers are impregnated or sprayed with synthetic resins and various chemicals to perform various processing treatments, such as waterproofing,
Although non-combustible finishing, dyeing finishing, etc. are applied to fabrics, even in such treated fabrics, the properties of the resin used remain in the fabric, resulting in similar drawbacks such as lack of flexibility. There is.

Conventional equipment for improving the properties of such nonwoven or treated fabrics by eliminating the hardness present in the fabrics involves rolling the fabrics by passing them between two heated rolls. There is a calender finish processing device that can be used.

[The problem that the idea aims to solve]

However, when fabrics are processed using a calendar finishing device, the fabrics are compressed with high pressure by two rollers, so the fabrics after the process have a flat feeling. There are problems such as making the waist feel sluggish and creating an undesirable shine on the surface, which can destroy the product's value.

Therefore, this invention provides a fabric softening device that can impart flexibility to nonwoven fabrics and treated fabrics without causing undesirable properties such as those that occur when calendering is applied. This is a technical issue.

[Means to solve the problem]

This invention, as a means to achieve the above-mentioned problem, consists of an endless rubber belt that is wrapped between a plurality of rotating rolls and moves in a circular motion, and a flat part of the endless rubber belt that is parallel to the belt. A high-frequency diaphragm is disposed facing the endless rubber belt and in contact with or near the endless rubber belt, and a fabric is passed between the high-frequency diaphragm and the endless rubber belt and the fabric is conveyed while being in contact with the high-frequency diaphragm. The gist is that it is configured by a conveying means.

[Effect]

In the fabric softening apparatus having the above configuration,
When a non-woven fabric or a treated fabric comes into contact with a high-frequency diaphragm while being conveyed between an endless rubber belt and a high-frequency diaphragm, the fabric is exposed to high-frequency waves between the endless rubber belt and the high-frequency diaphragm. Due to the minute vibrations received from the diaphragm, the contact points between the constituent fibers move and the contact area changes due to the minute beating action similar to being hit with a hammer, which improves the flexibility of the fabric compared to before treatment. do.

〔Example〕

Hereinafter, preferred embodiments of this invention will be described with reference to the drawings.

FIG. 1 is a side view showing a schematic configuration of a fabric softening apparatus according to an embodiment of the invention. In the figure, 12 is an endless rubber belt, and this endless rubber belt 12 is stretched between a drive roll 14 and a driven roll 16, and by rotating the drive roll 14 by a drive mechanism (not shown),
It is designed to move in circles at a constant speed. A support plate 18 of the endless rubber belt 12 is provided at a planar portion on the back side of the endless rubber belt 12.
is installed. On the opposite side of the support plate 18 across the endless rubber belt 12, a diaphragm 20 is arranged facing parallel to the endless rubber belt 12 and in contact with or very close to the endless rubber belt 12. ing. A high frequency vibrating device 22 is connected to the diaphragm 20, and the diaphragm 20 is configured to vibrate slightly by driving the high frequency vibrating device 22.

The fabric 10, which is a non-woven fabric or a treated fabric, is guided by a guide roll 24 and an endless rubber belt 12.
It descends while contacting the surface of the belt, passes between the endless rubber belt 12 and the diaphragm 20, and after contacting the diaphragm 20 at that time, is conveyed to the next process via the guide roll 26. ing. In this case, the speed at which the fabric 10 is conveyed and the rotation speed of the endless rubber belt 12 are controlled to match each other. Then, when the fabric 10 passes between the diaphragm 20 and the endless rubber belt 12, the fabric 10
is sandwiched between the diaphragm 20 and the endless rubber belt 12 backed up by the support plate 18, and micro vibrations are propagated from the high frequency vibration device 22 through the diaphragm 20. By applying this vibration, the contact points between the constituent fibers of the fabric 10 move and the contact areas change, thereby increasing the flexibility of the fabric 10.

Although the apparatus for softening fabrics of this invention has the above-mentioned configuration, the scope of this invention is not limited by the contents of the above description and drawings, and may be modified without departing from the gist. Various modifications may be included. For example, it is possible to change the degree of pressure of the diaphragm against the fabric and adjust it according to the thickness of the nonwoven fabric to be softened, or to adjust the flexibility of the resulting nonwoven fabric. You can also.

[Effect of idea]

Since this invention is constructed and operates as explained above, when applying a softening treatment to nonwoven fabrics etc. using the apparatus according to this invention, it is possible to avoid flatness or surface roughness as in the case of processing with a calendar finishing apparatus. It is possible to impart flexibility to nonwoven fabrics and treated fabrics without producing undesirable gloss, and it is possible to improve the texture, feel, etc. of these fabrics, thereby increasing their commercial value.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a schematic configuration of a fabric softening apparatus according to an embodiment of the invention. 10...Fabric, 12...Endless rubber belt, 1
4... Drive roll, 16... Driven roll, 18...
... Support plate, 20 ... Vibration plate, 22 ... High frequency vibration device, 24, 26 ... Guide roll.

Claims (1)

[Scope of utility model registration request] An endless rubber belt that is passed around between a plurality of rotating rolls and moves around; a high-frequency diaphragm that faces parallel to the flat part of the endless rubber belt and is disposed in contact with or in close proximity to the endless rubber belt; A fabric softening apparatus comprising a conveying means for passing fabric between a high frequency diaphragm and the endless rubber belt and conveying the fabric while contacting the high frequency diaphragm.