JPH0671053A - Thermosensitive, discoloring and water repellent artificial hair, and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a thermosensitive discoloring, water repellent artificial hair which is hard to get wetting, quick to dry and can be arranged easily by attaching a water repelling agent of specific resin compound in the form of solid at a specific ratio to the surface of each filament of thermosensitive discoloring multifilament yarn wherein thermally color-changeable material is mixed into a thermoplastic resin. CONSTITUTION:A water repelling agent selected from a group of a fluorine-, paraffin-, polyethylene-, alkyl ethylene urea-, silicon-based resin compounds, in the form of solid, is attached at a ratio of 0.1-10.0wt.% per filament to the surface of each filament of thermosensitive discoloring multifilament yarn wherein thermally discoloring material is mixed into thermoplastic resin to form a thermosensitive discoloring, water repellent artificial hair. And a mixture of water repelling agent and spinning oil for fiber is attached to the surface of the filament, the manufacturing process of which is performed in a step before a drawing process of filaments melt-spun from spinning nozzles, said filaments being prepared by making a processing liquid comprising water repelling agent and/or a mixture of water repelling agent and spinning oil adhere to filaments spun through said nozzles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-repellent artificial hair with a thermosensitive discoloration property and a method for producing the same. More specifically, the present invention relates to a temperature-sensitive discoloring water-repellent artificial hair that is effective for dolls, stuffed toys, and entertainment wigs, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Publication No. 63-11128 has been known as a proposal for a thermochromic artificial hair applied to a toy element.

[0003]

A doll toy in which this type of thermochromic artificial hair is applied to the hair is used as a toy for infants in which the hair is immersed in water or warm water to change its color. Therefore, it is required in order to improve the marketability that the discoloring operation by immersion in the bath dries quickly by draining the water and the hair can be easily styled with a comb. However, in the conventional thermochromic pseudo hair, the dryness or the hair styling property due to the rapid drainage of water has not been satisfied.

The present invention is intended to provide a thermosensitive color-changing water-repellent artificial hair and a method for producing the same, in which the above-mentioned problems of the conventional thermochromic pseudo hair are improved.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, the surface of each filament of a thermosensitive color-changing multifilament yarn formed by kneading a thermochromic material with a thermoplastic resin is coated with fluorine, paraffin or polyethylene. Of a water repellent agent selected from the group consisting of resin compounds, alkyl ethylene urea compounds, and silicon resin compounds, and having a solid content of 0.1 to 10.0% by weight of the water repellent agent adhered to the filament. It requires temperature-sensitive discoloration water-repellent artificial hair.
Further, the invention is characterized in that a mixture of the water repellent and a fiber spinning oil having an affinity for the water repellent is adhered to the surface of each filament. Furthermore, a water repellent and /
Alternatively, a method for producing a temperature-sensitive discoloring water-repellent artificial hair is characterized in that a treatment liquid prepared by mixing a water-repellent agent with a spinning oil for fibers is applied in a step before the stretching step.

In the above, the multifilament yarn is
It is a bundle of parallel fibers of several to about 100 filaments, and is made of polypropylene, polyethylene, polyester, polyamide resin, etc., and each filament having a thickness of 60 to 120 μm has a feeling of touch and an appearance. It is effective because it simulates hair. The thermochromic material kneaded with the resin is 0.3 to 10% by weight with respect to the resin,
More preferably, 1 to 6% by weight is effective.

The thermochromic material is a thermochromic material containing a conventionally known thermochromic dye, for example, an electron-donating color-developing organic compound, a color developer of the compound and a color reaction between the both. A thermochromic material containing three components of a compound serving as a medium to be generated or a thermochromic material exhibiting a color-changing property in the form of fine particles of a resin solid solution of the components (for example, Japanese Patent Publication No. 51-3541).
4, Japanese Patent Publication No. 51-44706, Japanese Patent Publication No.
-44708, Japanese Patent Publication No. 52-7764, Japanese Patent Publication No. 1-29398, etc.).
In the above, the color changes before and after a predetermined temperature (color change point) as a boundary, and only one specific state can exist in the normal temperature region of both states before and after the change. That is, the other state is maintained while the heat or cold required to develop that state is applied, but returns to the state exhibited in the normal temperature range when the application of the heat or cold is lost, so-called, It is a type that changes color by showing a small hysteresis width (ΔH) with respect to temperature-color density due to temperature change.

Further, Japanese Patent Laid-Open No. 60-
A system described in Japanese Patent No. 264285, which is colored with a thermochromic material containing a color-memory thermochromic dye that exhibits large hysteresis characteristics and is discolored, is effective. The dye exhibits a large hysteresis width (ΔH) and changes color. That is, the shape of the curve plotting the change of the coloring density due to the temperature change is the case where the temperature is increased from the lower temperature side than the color change temperature range and the other is the temperature is decreased from the higher temperature side than the color change temperature range. It is a type that changes color by following a significantly different route.

As the above-mentioned temperature-sensitive color-changing dyes and color-memory type temperature-sensitive color-changing dyes, those having a color change point in the range of -10 ° C to + 60 ° C are effective, and usually, they are finely divided by a known microencapsulation method. It is applied by being encapsulated in a capsule (particle size 1 to 30 μm, more preferably 5 to 20 μm), and the above microcapsule pigment is kneaded in a thermoplastic to be melt-molded.

When the amount of the water repellent agent attached to the filament surface is 0.10% by weight or less based on the filament, the water repellent effect is poor. On the other hand, when it exceeds 10% by weight, spinning, twisting, flocking, etc. Trouble is likely to occur in the post-processing due to lack of excess adherent and adhesion between filaments (adhesion). A deposition rate of 0.5 to 6.0% by weight, more preferably 1.0 to 2.0% by weight is effective. The fiber-spinning oil agent applied to the present invention is applied to facilitate hair styling with a comb, and silicone lubricants, liquid paraffin, fatty acid esters and the like are applied.

[0011]

[Function] A proper amount of the water repellent is attached to the surface of each filament, the water repellent effect is effectively exhibited, and the hair part is soaked in the bath after the discoloration operation, and the water drains well and dries quickly.
In addition, the combined use of an oil agent imparts proper smoothness to hair styling with a comb, thereby satisfying the hair styling property. Water repellent and /
Alternatively, a treatment liquid prepared by mixing a water-repellent agent with a fiber spinning oil is adhered to the surface of a filament discharged from a spinning nozzle,
After that, a filament having a desired thickness is formed by a drawing process, and thus the curing treatment of the water repellent is also performed at the same time.

In the hair of the present invention, in a system formed of a coloring material containing a thermosensitive dye exhibiting a thermochromic property with a small hysteresis width (ΔH), the color changes before and after the color change point as a boundary, and both before and after the change. Of the states, one specific state exists in the room temperature range, and the other state returns to the state exhibited in the room temperature range when the application of heat or cold heat required for the state to develop is eliminated.

On the other hand, in a system to which a color material containing a color-memory thermosensitive color-changing dye is applied, by applying cold heat below the low-temperature side discoloration point or heat above the high-temperature side discoloration point, the colors are changed from each other in a manner different from the normal state. , Even if the application of cold heat or heat required to develop the state is eliminated, the state can be retained in the normal temperature range, and the aspect retained is said to be required for the state to develop. The color is changed to the original state by the reverse thermal means, and this is stored and held at room temperature.

[0014]

[Example 1] In the following, "parts" or "parts by weight" in the formulation examples are shown. Thermochromic pigment 8 that changes color from red to colorless at about 30 ℃
And polypropylene with a melting point of 160 ° C [Tonen Sekiyu KK
XJ-440E] chip (92 parts) was melt-mixed at 180 ° C. to obtain a thermochromic pigment-mixed chip. Next, this chip is melt-spun into 24 filaments to form multifilaments, and TH-44 [Nikaka Chemical Co., Ltd.
Paraffin-based water-repellent emulsion] 25 parts, Hovolax DM [Antistatic agent manufactured by Nichika Chemical Co., Ltd.] 1 part, Tricor S-1005 [Takeshita Yushi Co., Ltd., silicon fiber lubricant] 5 parts and water 69 parts After passing a treatment liquid consisting of 1 to 2% (solid content) on each filament, it is passed through an adhesion roll, and then a stretching plate (80 to 100 ° C.) having a length of 150 cm is used for about 2 Stretched 5 times, 1
A thermochromic filament of 080 denier / 24 filament was obtained. After implanting the multifilaments on the head of the doll, heat treatment was performed at 70 ° C. for 30 minutes. When the hair of the obtained doll was immersed in a bath having a water temperature of about 35 ° C., the hair changed its color from red to colorless. When the hair portion was taken out from the bath, the water-repellent effect was remarkable, and almost no water was attached, and the hair dried quickly.

[0015]

Comparative Example 1 Using the same chip as the thermochromic pigment-mixed chip of Example 1, 15 filaments of Derion PP-644 (a fiber spinning oil manufactured by Takemoto Yushi Co., Ltd.) and 85 parts of water were spun in a melt spinning device. The hair of a doll was constructed in the same manner as in Example 1 except that an aqueous solution of an oil solution was attached.
When the hair was dipped in a water bath and taken out, the water was not drained well, and it took a whole day and night to dry.

[0016]

Example 2 A water repellent treatment liquid was used as Paragit ASP [paraffin water repellent emulsion manufactured by Meisei Chemical Industry Co., Ltd.] 13
Part, Asahi Guard AG-480 [fluorescent water repellent emulsion manufactured by Meisei Chemical Industry Co., Ltd.] 13 parts, Derector L
Example 1 except that M-3 [Meisei Chemical Industry Co., Ltd. antistatic agent] 1 part, Tricol S-1005 [Takeshita Yushi Co., Ltd. silicon fiber lubricant] 5 parts and water 69 parts
In the same manner as described above, hair consisting of thermochromic multifilament was obtained. When the water repellency effect of the hair was tested, it showed the same performance as in Example 1, and further when the hair styling property by using a comb was tested, the hair could be smoothly styled.

Next, the results of comparative tests conducted on the inventive examples 1 and 2 and comparative example 1 by the following test method will be described. After immersing the filamented hair on the doll's head in a water bath at about 35 ° C, remove it from the water bath and drain it to 3
Do it once. The amount of water remaining in the filament is measured, and the water remaining rate (%) is calculated by taking the difference from that before immersion in a water bath. As a result, in the system of Example 1, 6% (first time), 11% (2
Time), complete drying time (30 minutes), in the system of Comparative Example 1,
23% (first time), 27% (second time), completely dried (one day and night), in the system of Example 2, 11% (first time), 13%
(Second time), the state of complete drying time (1 hour).

[0018]

EFFECTS OF THE INVENTION The temperature-sensitive discoloring water-repellent artificial hair of the present invention is
It can be discolored by heating or cooling, you can enjoy the strangeness of the discoloration, the unexpectedness, even if you put it in the play of immersing the hair part in warm water or cold water and discoloring it, the hair part will quickly drain and dry Yes, it is difficult to cause problems such as water wetting due to non-drying. It does not interfere with repeated play. Further, it is excellent in hair styling with a comb, and is suitable for dolls for infants, hair for stuffed toys, and wigs for entertainment.

Claims (3)

[Claims] 1. A fluorine-based, paraffin-based, polyethylene-based, alkyl ethylene urea-based, or silicon-based surface of each filament of thermosensitive color-changing multifilament yarn formed by kneading a thermochromic material with a thermoplastic resin. 0.1 to 10.0 for each filament, with one or more water repellents selected from the group consisting of resin compounds as the solid content.
Thermosensitive discoloration water repellent artificial hair that is attached in a weight percentage. 2. The temperature-sensitive discoloring water-repellent artificial hair according to claim 1, wherein a mixture of the water repellent and a spinning oil for fibers having an affinity for the water repellent is adhered to the surface of each filament. . 3. A temperature-sensitive discoloration property, characterized in that a water repellent and / or a treatment liquid prepared by mixing a water repellent with a fiber spinning oil is adhered before the step of stretching a filament discharged from a melt spinning nozzle. Method for producing water-repellent artificial hair.