JPH0614994B2 - Synthetic fiber used for doll hair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a synthetic fiber used for doll hair. More specifically, a doll having a single yarn denier of 10 to 100 and a multifilament, which is a mixture of two or more kinds of fibers selected from fibers of horseshoe-shaped, cocoon-shaped, L-shaped and Y-shaped cross-sectional shapes. The present invention relates to a synthetic fiber used for hair, which has a natural feel without stickiness and has improved bulkiness, which is used for doll hair.

[Prior Art] Conventionally, synthetic fibers such as vinylidene chloride-based, vinyl chloride-based, nylon and polypropylene have been used as doll hair. Such synthetic fibers are produced by melt extrusion spinning or melt spinning from a nozzle having a circular hole. Therefore, the cross-sectional shape of the fiber is circular,
Moreover, the surface of the fiber has an extremely smooth surface structure characteristic of melt spinning. For this reason, the fibers are in line contact with each other and converge in the form of a close-packed material, which is liable to be dulled and has a low bulkiness, and as a result, there is a problem that the background of the doll head is easily seen through. It was

In addition, the surface was extremely smooth, and there was stickiness when touched by hand, and the texture was far from natural hair.

In order to solve these problems, variant cross-section systems such as triangles, rectangles, squares and rhombuses have been proposed, as described in Japanese Utility Model Publication No. 43-19318.

[Problems to be Solved by the Invention] However, since such a modified cross-section system also has a regular cross-sectional shape, it converges into a close-packed shape like a circular cross-section,
It tends to be dulled and the improvement in bulkiness was not sufficient. In addition, the surface is, of course, still smooth, and since the fibers have a large contact area between each other, the feeling such as stickiness was not sufficiently improved.

In view of the above circumstances, the present invention has a single yarn denier of 10 to 100 and a multi-filament, which is a mixture of two or more kinds of fibers selected from fibers having horseshoe-shaped, cocoon-shaped, L-shaped and Y-shaped cross-sectional shapes. An object of the present invention is to provide a doll's hair, which is a filament synthetic fiber used for doll's hair, has no stickiness, has a natural feel, and has improved bulkiness.

[Means for Solving Problems] As a result of earnest studies, the inventors of the present invention have found that a horseshoe shape, a cocoon shape, and an L shape.
For the first time when synthetic fibers having a single yarn denier of 10 to 100 and multifilaments, which are obtained by mixing two or more kinds of fibers selected from fibers having a Y-shaped or Y-shaped cross-section, are used for doll's hair, According to the present invention, an improvement in bulkiness that was not found in conventional doll hair was observed, the background of the doll head was not visible, and the conventional stickiness was improved and a natural texture was obtained. Has been completed.

Examples Examples of the synthetic fibers used in the present invention include acrylic fibers, vinylidene chloride fibers, vinyl chloride fibers, nylon and polypropylene.

The cross-sectional shape of the synthetic fiber of the present invention is an irregularly-shaped cross section such as a horseshoe shape, a cocoon shape, an L shape and a Y shape as shown in FIGS. 1a to 1d.

Since the degree of cross-section is less than 1, there are more voids when they are densely packed than in the shapes of circles, triangles, rectangles, squares, etc. Therefore, the fibers do not converge with each other to form a slump. . In addition, because of its irregular cross-sectional shape, each fiber is prone to twisting, making it difficult to bend in a certain direction as a bundle of fibers when curling is applied, and therefore a doll with excellent bulkiness. I get hair. As a result, it is possible to reduce the amount of fibers to be transplanted to the head of the doll by 30 to 50% by weight as compared with the conventional hair having a circular cross section.

Furthermore, the irregularly shaped cross section of the synthetic fiber of the present invention has many projections in the cross section as compared with the circular cross section, and can give a proper sharpness, and the stickiness inherent to the conventional circular cross section is removed, resulting in smoothness. Gives a natural texture.

The synthetic fiber used for the doll's hair of the present invention can be obtained by melt spinning from the nozzle hole having a cross-sectional shape such as the horseshoe shape described above, but it is preferable to produce it by wet spinning an acrylic copolymer.

The synthetic fiber used for the doll head hair of the present invention is required to be a multi-filament because it is transplanted to the doll head by a hair-implanting sewing machine. The single yarn fineness is 10 to 100d, and the total fineness is 200 to 200 considering the use as doll hair.
A range of 0d is preferred.

In the synthetic fiber of the present invention, the same type of cross-sectional shape is 90
%, It is not preferable because the desired bulkiness cannot be obtained.

Next, the synthetic fibers used for the doll's hair of the present invention will be described based on Examples, but the present invention is not limited to such Examples.

Example 1 An acrylonitrile copolymer consisting of 50% by weight of acrylonitrile, 49% by weight of vinyl chloride and 1% by weight of sodium methallyl sulfonate was dissolved in acetone and spinning speed was 20 m / m.
Acetone concentration of 20 at 0.3φ × 24 hole spinning nozzle
% Acetone-water coagulation bath.

Then, it is washed with water, dried, and subjected to a stretching heat treatment in the usual manner, and then 720d
A / 24f multifilament was wound on a spool.

The cross section of the obtained fiber was a mixture of horseshoe, cocoon, L and Y cross sections.

Example 2 100 parts by weight of vinylidene chloride-based copolymer consisting of 85% by weight of vinylidene chloride and 15% by weight of vinyl chloride, a conventional plasticizer,
A resin containing 8.5 parts of stabilizer at a temperature of about 170 to 180 ° C.,
The mixture was extruded and spun from a modified hole mix spinning nozzle in which Y-shaped and L-shaped cross-sectional shapes were mixed.

Then, after cooling the yarn, draw it about 4 times at room temperature, 600d / 10f
Was wound on a spool.

The cross section of the obtained fiber was a mixture of horseshoe shape, Y shape and L shape.

Curling the synthetic fibers obtained in Examples 1-2
13mmφ curl was added. Similarly, the vinylidene chloride-based fibers (Comparative Example 1) and vinyl chloride-based fibers (Comparative Example 2), which are currently used for doll head hair, also imparted curl.

Next, the curled fiber was flocked to the head of a doll using a flocking sewing machine, and the quality characteristics were evaluated. The results are shown in Table 1.

The subscript of the item of bulkiness indicates the amount of hair transplanted per doll required to obtain the same bulkiness. It can be seen that when the synthetic fiber of the present invention is used for doll's hair, it can be reduced by 30 to 50% as compared with the conventional vinylidene chloride fiber. In addition, the skin of the doll's head could not be seen through even when the amount of hair transplanted was reduced. Further, the fiber of the present invention has a conventional and smooth texture without a sticky feeling.

[Effects of the Invention] The synthetic fiber of the present invention has the effects of not giving a sticky feeling, having a natural feel, and improving the bulkiness.

[Brief description of drawings]

1a is a cross-sectional view of a horseshoe-shaped synthetic fiber (single yarn) used for the doll's hair of the present invention, and FIGS. 1b, 1c and 1d are respectively cocoon-shaped, L-shaped and Y-shaped synthetic fibers ( (Single thread)
FIG.

Claims (1)

[Claims] 1. A mixture of two or more kinds of fibers selected from fibers having horseshoe-shaped, cocoon-shaped, L-shaped and Y-shaped cross-sectional shapes.
Synthetic fiber for doll's hair, which has 10-100 denier per filament and multifilament.