JPH062259A - Reinforcing material for embroidery - Google Patents

Abstract

PURPOSE:To obtain water-soluble woven fabric suitable for reinforcing material for embroidery, having whitened surface by longitudinally and laterally crossing split yarn made of a polyvinyl alcohol resin, laminating and bonding. CONSTITUTION:A film made of a polyvinyl alcohol resin is divided to give split yarn, which is laminated in such a way that the yarn is longitudinally and laterally crossed to form a nonwoven fabric web. The web is coated with an adhesive consisting of an aqueous solution of a polyvinyl alcohol containing a blowing agent to expand by heating. Then the web is brought into contact with a heated cylinder, bonded, fixed and expanded to give water-soluble nonwoven fabric having a whitened surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery reinforcement material used as a material for embroidery.

[0002]

2. Description of the Related Art When embroidering a thin cloth or a coarse cloth, a method is generally used in which a reinforcing material is applied to the cloth for embroidery, and the reinforcing material is melted away after the embroidery is completed.

Conventionally, as a reinforcing material for embroidery, a woven cloth, a nonwoven cloth, a film or the like made of a water-soluble material is mainly used. However, these conventional products have the following drawbacks.

That is, the woven fabric has a high weaving cost and lacks dimensional stability. Nonwoven fabrics have a high basis weight in order to obtain the required strength, and the workability of embroidery is poor, and it may take a long time to melt. Since the film is not strong enough, it is not suitable when the embroidery density is high.

Therefore, in order to eliminate the above-mentioned drawbacks, as a reinforcing material, a water-soluble film having a large draw ratio in one direction is intermittently provided with cuts substantially parallel to the draw direction.
It is proposed that the cuts are expanded to form a reticulated film, and a plurality of reticulated films are superposed and integrated so that the stretching directions intersect with each other. (Japanese Utility Model Laid-Open No. 3-18194) According to this embroidery reinforcing material, the cost is low, the dimensional stability is excellent, and the basis weight is less than that of the conventional nonwoven fabric.
It has extremely preferable characteristics as a reinforcing material for embroidery. However, since this reinforcing material has a surface gloss as seen in other materials, it is difficult to see the defects when checking and repairing defects such as thread breakage during embroidery after embroidering. However, there was a problem that the eyes were extremely tired.

Conventionally, in order to solve such a problem, a method of dyeing a light blue color with a water-soluble dye has been generally used. However, according to this method, since the dye is dyed with a water-soluble dye, a step of removing the dye with room temperature water in advance is required when the reinforcing material in the next step is dissolved, and the drainage from which the dye is removed pollutes the environment. There was a problem to do.

[0007]

As a result of intensive studies, the present inventors have found that the above-mentioned problems can be solved by a specific water-soluble nonwoven fabric whose surface is whitened by foaming, and completed the present invention. The object of the present invention is to prevent a defect from being overlooked or eye fatigue during inspection and repair after embroidery. To provide a reinforcement for embroidery which does not need to be removed.

[0008]

The object of the present invention is to provide a water-soluble nonwoven fabric obtained by laminating and adhering split fiber webs made of polyvinyl alcohol resin so as to intersect with each other in the longitudinal and transverse directions. This is achieved by a reinforcing material for embroidery, the surface of which is whitened by foaming.

In the water-soluble split fiber nonwoven fabric according to the present invention, a film made of a polyvinyl alcohol resin is uniaxially heat-stretched and then split to form a flat split fiber web. It is obtained by stacking so as to cross each other and performing an adhesive treatment. The split fibrous web may be laminated with a widened width as necessary. The above-mentioned adhesion treatment is usually carried out by applying a polyvinyl alcohol aqueous solution to the laminate and then drying it.

The embroidery reinforcement material of the present invention is obtained by whitening the surface of the water-soluble split fiber nonwoven fabric by foaming. In order to obtain a whitened surface, for example, a polyvinyl alcohol aqueous solution used as an adhesive at the time of the above-mentioned adhesion treatment may be added with a foaming agent capable of foaming by heating, and may be brought into contact with a heated cylinder and dried. Further, if the heating cylinder is pressed with a roll from the early stage to the middle stage of drying, whitening is more likely to occur.

In the present invention, the size and density of foaming are
There is no particular limitation as long as the object of the present invention can be achieved. Further, the method for foaming may be a known appropriate method, but according to the above method, the adhesive itself is in a foamed state, and adhesion and foaming can be performed at the same time, so that whitening is effectively and efficiently performed. Can be given.

The concentration of the polyvinyl alcohol aqueous solution is not particularly limited, and varies depending on the subsequent drying method and its conditions. For example, 5% by weight or less is preferable in the method of contacting with the cylinder, and about 10% by weight is preferable in the method of pressurizing the heating cylinder.

[0013]

[Function] The water-soluble split fiber non-woven fabric is formed into fine irregularities on the surface due to foaming and is whitened, so that the surface gloss is suppressed.
Since the blue dye is not used, it is not necessary to remove the dye before the dissolution.

[0014]

EXAMPLES The present invention will be specifically described below based on examples.

Embodiment FIG. 1 is an enlarged plan view showing an embodiment of the present invention. A film having a thickness of 60 μm was formed from polyvinyl alcohol, and this film was heat-stretched 6 times in the machine direction. The stretched film was rubbed on a rotating roll whose surface was composed of a file and split in the machine direction to obtain a split fiber web. This split fibrous web was spread three times in the transverse direction, and the split fibrous web 2, which was expanded two times in the transverse direction, was superposed on the split fibrous web 1 so as to be orthogonal to each other. From the initial stage to the middle stage of drying in the process, it was sandwiched by a heating cylinder and a pressure roll from above and below to be foamed, and subsequently dried to obtain a reticulated water-soluble split fiber nonwoven fabric. The surface of the obtained water-soluble split fiber nonwoven fabric was whitened due to foaming.

Next, the obtained water-soluble split fiber non-woven fabric was used as a reinforcing material for embroidery, laminated with a nylon knit (tulle), and then embroidered by an embroidery machine. When this product was inspected and repaired, it was possible to easily find defects such as yarn breakage, and eyes were not tired as in the conventional case.

This embroidery reinforcing material has been conventionally used for inspection and
Since the water-soluble dye used for dyeing the embroidery reinforcing material for the purpose of facilitating repair is not used, it is not necessary to wash the dye in advance when the embroidery reinforcing material is melted away.

[0018]

The reinforcing material for embroidery of the present invention has a whitened surface due to foaming, so that the gloss is suppressed, and defects are not overlooked and eyes are not tired during the inspection and repair process after embroidery. The inspection and repair can be done reliably and efficiently. Further, since the water-soluble dye is not used, it is not necessary to remove the dye, and the process of melting the embroidery reinforcement material can be simplified.
Furthermore, since no dye is used, the wastewater does not contain a dye, and there is no risk of polluting the environment. As described above, the present invention is extremely useful industrially.

[Brief description of drawings]

FIG. 1 is an enlarged plan view showing an embodiment of the present invention.

[Explanation of symbols]

 1, 2 split fiber web

Claims (1)

[Claims] 1. A water-soluble split fiber nonwoven fabric obtained by laminating and adhering split fiber webs made of a polyvinyl alcohol resin so as to intersect with each other in a longitudinal direction, and the surface of the water-soluble split fiber nonwoven fabric is whitened by foaming. A reinforcement material for embroidery, which is characterized by that.