JPS622831B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides futon cotton made of filaments, and more specifically, provides futon cotton that can effectively prevent the filament ends of the filament cotton from slipping out of the futon cotton. .

Conventionally, staple futon cotton is well known, but it has the disadvantage that the futon cotton slips out from the side fabric of the futon.To improve this, special processing is applied to the side fabric, the density and basis weight of the side fabric are increased, etc. Futon cotton has been treated with resin and low melting point fibers have been mixed into the fibers that make up the futon cotton, but these have the drawbacks of significantly impairing the feel of the futon and increasing cost. It has been difficult to completely prevent this. On the other hand, futon cotton that uses filaments is used instead of staple futon cotton, but although it is cheaper, it also has problems with texture, and the cut end of the filament also comes off in the same way, resulting in a significant loss of quality. It was something that made it worse.
In order to prevent this drawback, there are methods in which the entire filament futon cotton is treated with resin, or the cut end of the filament is fused in a linear shape, but both methods significantly impair the feel of the filament, resulting in fusion. The current situation is that the part that is worn becomes stiff, greatly reducing its value as a futon.

The present invention aims to improve the drawbacks of the prior art and easily provide filament futon cotton that is low in cost and has little deterioration in feel.

The present invention has the following configuration to achieve the above object. That is, the futon cotton is composed of filaments, and is characterized in that the filaments present at the cut ends of the filaments are divided and bundled into a plurality of tufts.

The filament used in the present invention may be made of any material. The fineness and number of filaments are not particularly limited either. The filament is composed of a large number of filaments, and may be in the form of a tow, or may be made into a bulky shape by opening the filaments. , or may be crimped. The filaments may be arranged parallel to each other to form a futon, and even if the filaments are interlaced to some extent, as long as they are arranged so that the axis of the filaments faces in one direction as a whole. It is enough. In some cases, it may be shaped into a waveform. The present invention collects the cut ends of filament futon cotton into a tuft to prevent the cotton from falling out. Specifically, the filament is piled up to a certain weight and then cut. However, focusing processing is performed at this time. As focusing processing,
The portions constituting each cut end of the filament constituting the futon cotton are divided into several groups, and the tips of the filaments are collected and fixed. The focusing means includes a method of converging the tip of the filament into a brush shape by performing an entangling process using a fluid, a method of converging using a flexible glue or adhesive, a twisting method,
A method of converging using a thermal bonding method or the like may also be considered.

As an embodiment for carrying out the present invention, a group of filaments 1 in an open state as shown in FIG.
After taking off a certain amount while moving the filament, when the planned cutting line 2 comes, insert the dividing guide 3 into the filament group from above or below the filament group to partially divide the filament and create a tufted shape 5. This is then achieved by applying a heated cutter near the guide 3 to perform a fusion process, or by bringing a fluid jet close to perform an entangling process to fix the narrow, focused part in that shape and then cutting.

The futon cotton of the present invention may be used in the form of a single sheet, stacked or folded.

Since the present invention has such a structure, the ends of the filament are highly flexible, do not deteriorate the feel, and can completely prevent cotton from coming off. Moreover, it has the advantage that the futon cotton can be handled conveniently and the work of inserting the side fabric can be performed with high efficiency. The present invention can be used for various purposes such as blankets, mattresses, cushions, pillows, and sleeping bags.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing one embodiment of making futon cotton according to the present invention. FIG. 2 is an external view showing an example of the use of futon cotton of the present invention. 1: filament, 2: planned cutting line, 3: dividing guide, 4: heat cutter, 5: converging part tufted part, 6: futon cotton.

Claims (1)

[Claims] 1. Futon cotton composed of filaments, characterized in that the filaments present at the cut ends of the filaments are divided and bundled into a plurality of tufts.