JPH05186948A - Adhesion to cloth - Google Patents

Abstract

PURPOSE:To provide an adhesion process which can bring out the anchoring effect of a hot-melt type adhesive to the maximum which it can develop, thus a substrate is very powerfully bonded to the cloth. CONSTITUTION:In the adhesion to cloth using a hot-melt type adhesive, the fibers near the surface of a prescribed position to be bonded in the cloth are opened, roughened or fibrillated, then the bonding to the cloth is carried out by hot-pressing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adhering an adhesive to a cloth using a hot melt type adhesive.

The cloth referred to in the present invention is composed of natural fibers such as silk and cotton, synthetic fibers such as polyester type, polyamide type and polyacrylonitrile type, regenerated fibers of cellulose type and protein type and semi-synthetic fibers. Textiles, knits, non-woven fabrics, etc.

[0003]

2. Description of the Related Art Hot melt adhesives are used for bonding various resins and films. Adhesion using this is of course related to the affinity between the adhesive component and the adherend and / or the adherend, but is largely due to the anchor effect. Therefore, when a fabric made of fibers is selected as the adhesive and / or the adherend, it is expected to have a stronger adhesive force than a resin or film having a relatively smooth surface. However, when fabrics are adhered to each other and washing is repeated, the fact is that they gradually come off. This is because the surface of the fabric seems to have a structure that is expected to have a strong anchoring effect, but surprisingly, the adhesive strength is weak because the adhesive does not penetrate deep into the fabric.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above drawbacks, maximizes the anchor effect that can be exhibited by a hot melt adhesive, and provides a fabric capable of adhering an adhesive body to a fabric very strongly. It is intended to provide a bonding method of.

[0005]

[Means for Solving the Problems] As pointed out above,
As a result of further observation that the adhesive did not penetrate deep into the fabric, it was found that the fibers constituting the adhesive surface of the fabric were not sufficiently opened. Then, as a result of intensive studies, the present invention was achieved. The outline is as follows.

That is, according to the present invention, in a method of adhering to a cloth using a hot melt adhesive, the fibers constituting the vicinity of the surface of the cloth at a predetermined position to be adhered are opened or made uneven or fibrillated. This is a method for adhering to a cloth, which is characterized in that the adhering is performed by a hot press method.

The present invention is a method of adhering to a cloth as described above, wherein as means for making unevenness or fibrils at that time, at least the surface at a predetermined position to be adhered is rubbed with an abrasive, or a needle or a It is a method of adhering to a cloth, which is characterized by repeatedly piercing a barbed needle.

Further, in the present invention, the adhesive has a single fiber fineness of 0.
It is a method for adhering to a fabric, which is mainly composed of ultrafine fibers of 0001 denier or more and 1 denier or less.

Furthermore, the present invention is a method for adhering to a cloth, wherein the hot-melt adhesive has an affinity for the adherend and / or the cloth.

[0010]

The present invention will be described in detail below.

When some kind of adhesive is adhered to the cloth using a hot melt type adhesive, even if the adhesive and the adhesive have strong adhesive strength, the cloth never gives a strong adhesive force. The present situation is that it does not have it, and if it is repeatedly washed or the cloth and the adhesive body are pulled, it is easily peeled off. This is because the fibers constituting the surface of the fabric are not sufficiently opened, and the hot-melt type adhesive that mainly causes the adhesive strength due to the anchor effect does not unexpectedly penetrate deep inside the fabric. Of.

Therefore, in the present invention, the fibers forming the vicinity of the surface of the cloth at the predetermined position to be bonded are opened and then bonded by the hot pressing method, so that the cloth of the hot melt type adhesive can be deeply inserted. The above-mentioned problems were solved by facilitating the invasion of the squirrel and providing a sufficient anchor effect. Further, making the fibers uneven or fibrillated is also very preferable because the contact area with the adhesive increases and an anchoring effect occurs.

There is no limitation on the method of opening the fiber, making it uneven or fibrillating, but it is possible to rub or polish the surface of the fiber, pierce it repeatedly with a needle or a barbed needle, or subject it to a water jet punch treatment. preferable.

As a material to be rubbed / polished, it is preferable to use a material having a rough surface such as sandpaper, a file or a grindstone, but even a material having a smooth surface such as cork or rubber can be used. Any material may be used as long as it causes opening and fibrillation. Also,
An abrasive or the like may be used.

When a needle or a needle with a barb is repeatedly stabbed, it may be carried out with a single needle as long as it has a very limited area. Is preferable because it is efficient.

The term "roughening" as used in the present invention also includes making cracks, grooves or scratches on the fiber surface.

The adhesive in the present invention is not limited, and may have any form such as a label or tape, and may be a cloth or a film,
It may have any structure, and may have any composition such as polyester or polyamide.

If the adhesive is a cloth, it is also preferable that the fibers are opened or made uneven or fibrillated as described above.

When the adhesive is a cloth and has a relatively small size such as a label, if the adhesive is mainly composed of ultrafine fibers having a single fiber fineness of 0.0001 denier or more and 1 denier or less, It is preferably used because it exhibits stronger adhesive strength. Further, according to the present invention, an adhesive body is a cloth mainly composed of ultrafine fibers having a fineness of single fiber of 0.0001 denier or more and 1 denier or less, and an optically readable bar code, two-dimensional code or OCR (Optica
It has a so-called identification mark, which is encoded by Character Recognition), and can be particularly preferably applied to adhesion of an identification mark label or the like used in a laundry field where strong adhesion is required.

In the present invention, the kind and components of the hot melt type adhesive are not particularly limited, but the fact that the hot melt type adhesive has an affinity for the bonded body and / or the cloth means that the adhesive is a cloth. It is very preferable because it easily penetrates into the inside of and the stronger bond is obtained as a synergistic effect. For example, a polyester type adhesive is preferably used when the adhesive body and / or the cloth is polyester, and a polyamide type adhesive is preferably used when the adhesive body and / or the cloth is polyamide.

In the present invention, the hot-melt adhesive may be attached to the adherend in advance, or may be attached at the same time as the adhesive during the adhesion in the present invention. Further, the amount of the adhesive is not particularly limited, but the amount of the adhesive may be appropriately selected in consideration of the required adhesive strength, cost, appearance and texture after adhesion, and the like. It should be noted that it is preferable to use a slightly larger amount of adhesion because the anchor effect is enhanced.

[0022]

The present invention will be described in more detail with reference to the following examples. Needless to say, the present invention is not limited to this embodiment.

EXAMPLE First, a high-density woven fabric composed of 0.06 denier ultrafine polyester filament fibers was subjected to a water jet punch treatment to open the fibers, and then a barcode was printed on one side to give a barcode fabric label. It was made.

The label was lined with a hot melt adhesive film having an affinity with polyester.

Next, the adhesive portion of the back of the collar of the cock coat made of cotton is repeatedly pierced with a large number of sword-shaped needles to open and fibrillate the fiber, and the label is attached to the adhesive portion. It adhered by the hot press method.

As a result of repeatedly washing the coat having the bar code fabric label produced by the above operation, sufficient adhesion was observed even after 50 times of washing, and no appearance of peeling was observed.

Comparative Example First, a barcode was printed on one side of a high-density fabric made of 0.06 denier ultrafine polyester filament fibers to produce a barcode fabric label.

The label was lined with a hot melt adhesive film having an affinity for polyester.

Next, the above label was adhered to the adhering portion of the cock coat made of cotton by the hot pressing method.

As a result of repeatedly washing the coat having the bar code fabric label produced by the above-mentioned operation, it was observed that the label was peeled off from the edge of the label after the fifth washing.
It completely peeled off after 0 times.

As described above, it is clear that the present invention imparts a very strong adhesive force to the cloth by using the hot melt adhesive.

[0032]

EFFECTS OF THE INVENTION According to the present invention, a very strong adhesive strength can be obtained in the adhesion to a cloth using a hot melt type adhesive, and in particular, the present invention has a severe washing resistance in the laundry field and the like. It is used very effectively for the required adhesion to cloth.

Claims (7)

[Claims] 1. In a method of adhering to a cloth using a hot melt type adhesive, fibers constituting the vicinity of the surface of a predetermined position of the cloth to be adhered are opened or roughened or fibrillated and then hot pressed. A method for adhering to a cloth, which comprises adhering by a method. 2. The method of adhering to a cloth according to claim 1, wherein the adhesive adhered to the cloth is a label. 3. An adhesive body adhered to a cloth is a cloth,
The method for adhering to a fabric according to claim 1 or 2, wherein the adhering is performed after the fibers constituting the vicinity of the surface at a predetermined position to be adhered are opened or made uneven or fibrillated. 4. The method of adhering to a cloth according to claim 1, wherein at least the surface at a predetermined position to be adhered is rubbed with an abrasive. 5. The method for adhering to a cloth according to claim 1, wherein a needle or a barbed needle is repeatedly pierced at least on the surface at a predetermined position to be adhered. 6. The adhesion to the cloth according to claim 1, wherein the adhesive body is mainly composed of ultrafine fibers having a fineness of single fiber of 0.0001 denier or more and 1 denier or less. Method. 7. A hot melt adhesive is an adhesive and / or
Alternatively, the method of adhering to a cloth according to claim 1, 2, 3, 4, 5 or 6, wherein the method has an affinity for the cloth.