JP3177720B2 - Thermochromic water-repellent artificial hair for toys and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermochromic water-repellent artificial hair for toys and a method for producing the same. More specifically,
Dolls and stuffed toys again and again effective temperature-sensitive color-changing water-repellent artificial head
A method of manufacturing a Kami及 benefactor.

[0002]

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

[0003]

A doll toy in which this type of thermochromic artificial hair is applied to the hair is used as a toy for infants to play by dissolving the hair in water or hot water to change the color. Therefore, after the discoloration operation by immersion in a bath, it is required to dry quickly by draining water and to easily perform hair styling with a comb in order to enhance commerciality. However, the conventional thermochromic pseudo-hair does not satisfy the dryness or hair-styling properties due to the rapid drainage of water.

An object of the present invention is to provide a thermochromic water-repellent artificial hair for toys and a method for producing the same, which has improved the disadvantages of the conventional thermochromic artificial hair described above.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a thermochromic multifilament yarn formed by kneading a thermochromic material with a thermoplastic resin, on the surface of each filament, a fluorine-based, paraffin-based, polyethylene And one or more water-repellents selected from the group consisting of alkyl-based, alkylethylene-urea-based, and silicon-based resin compounds, and have an affinity with the water-repellent agent.
Silicone lubricant, liquid paraffin, fatty acid ester
A thermosensitive color-changing water-repellent artificial hair for toys obtained by adhering a mixture of spinning oil agents for fibers selected from the group consisting of 0.1 to 10.0% by weight of a solid content of a water-repellent agent to each filament. Requirements. Furthermore, a thermochromic material is added to the thermoplastic resin.
Thermochromic multifilament yarn formed by kneading
In, fluorine, paraffin, polyethylene,
Alkyl ethylene urea and silicone resin compounds
One or more water repellents selected from the group consisting of
Silicone lubricant with liquid agent, liquid paraffin
Down, characterized in that depositing the preceding stage of the drawing step of the filaments discharged from the melt spinning nozzle a treatment liquid obtained by mixing fibers for spinning oil selected from fatty acid esters toys
A requirement is a method for producing a thermochromic water-repellent artificial hair for tools .

In the above, the multifilament yarn is
It is a bundle of parallel fibers of several to about 100 filaments and is formed of polypropylene, polyethylene, polyester, polyamide resin, etc., and each filament has a thickness of 60 to 120 μm. Simulates hair and is effective. The thermochromic material kneaded with the resin is 0.3 to 10% by weight based on 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-forming organic compound, a color developer of the compound, and a color reaction of the two. A thermochromic material containing three components of a compound serving as a medium to be generated or a thermochromic material exhibiting a color change in the form of fine particles of a resin solid solution of the above component (for example, JP-B-51-3541)
No. 4, JP-B-51-44706, JP-B-51-44706
-44708, JP-B-52-7776, JP-B-1-29398, etc.).
The color changes before and after a predetermined temperature (color change point), and only one specific state can exist in a normal temperature range between the two states before and after the change. That is, the other state is maintained while the heat or cold required for the state to develop is applied, but returns to the state exhibited in the normal temperature range if the application of the heat or cold disappears, so-called, This type changes color by showing a small hysteresis width (ΔH) for temperature-color density due to temperature change.

[0008] Further, Japanese Patent Application Laid-Open No.
The system described in JP-A-264285, which is colored with a thermochromic material containing a color-memorizing thermochromic dye that exhibits a large hysteresis characteristic and changes color, is effective. The dye changes color with a large hysteresis width (ΔH). That is, the shape of the curve plotting the change in the coloring density due to the temperature change is different from the case where the temperature is increased from a temperature lower than the color change temperature range to the case where the temperature is decreased from the temperature higher than the color change temperature range. It is a type that changes color following a very different path.

As the above thermochromic dyes and color-memory thermochromic dyes, those having a color change point in the range of about -10 ° C. to + 60 ° C. are effective, and are usually prepared by a known microencapsulation method. It is encapsulated in a capsule (particle size: 1 to 30 μm, more preferably 5 to 20 μm), applied, and melt-molded by kneading the microcapsule pigment in a thermoplastic.

When the amount of the water repellent attached to the filament surface is 0.10% by weight or less as a solid content with respect to the filament, the water repellent effect is poor. On the other hand, when the amount exceeds 10% by weight, spinning, twisting, flocking, etc. In post-processing, there is a tendency for troubles to occur due to the occurrence of a lack of excess adhesion and adhesion (adhesion) between filaments. An adhesion ratio of 0.5 to 6.0% by weight, more preferably 1.0 to 2.0% by weight is effective. In addition, the spinning oil agent for fibers applied to the present invention is attached to facilitate hair styling with a comb, and a silicone-based lubricant, liquid paraffin, fatty acid esters and the like are applied.

[0011]

[Function] An appropriate amount of the water repellent is attached to the surface of each filament, the water repellent effect is effectively exhibited, and the hair is immersed in the bath and after the discoloration operation, drains quickly and dries quickly.
Also, by using an oil agent in combination, proper lubricity is imparted when hair is combed, thereby satisfying hair styling properties. A treatment liquid in which a water repellent and a fiber spinning oil are mixed is attached to the surface of the filament discharged from the spinning nozzle, and then a filament having a desired thickness is formed by a drawing step. The curing treatment of the agent 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 pigment exhibiting a thermochromic property having a small hysteresis width (ΔH), the color changes before and after the color changing point as a boundary, and both before and after the change. Among the states, one specific state is present in the normal temperature range, and the other state returns to the state exhibited in the normal temperature range when the application of heat or cold required to develop the state is eliminated.

On the other hand, in a system to which a color material containing a color-memory color-change thermochromic dye is applied, the color is changed to a different aspect from the normal state by applying heat below the low-temperature side color change point or above the high-temperature side color change point. Even without the application of cold or heat required for the state to develop, the state can be stored and maintained in the normal temperature range, and the stored mode was required to develop the state. The color is changed to the original state by the reverse thermal means, and this is stored and stored in the normal temperature range.

[0014]

Example 1 In the following, in the formulation examples, "parts" and "parts" indicate parts by weight. Thermochromic pigment that changes color from red to colorless at about 30 ° C 8
Part and polypropylene with a melting point of 160 ° C [Tonen Sekiyu KK
XJ-440E] and 92 parts of the chips were melt-mixed at 180 ° C. to obtain thermochromic pigment mixed chips. Next, this chip was melt-spun into 24 filaments to form a multifilament, and then TH-44 [Nichika Chemical Co., Ltd.
Paraffin-based water-repellent emulsion] 25 parts, Hovolax DM [Nichika Chemical Co., Ltd. antistatic agent] 1 part, Tricoll S-1005 [Takeshita Yushi Co., Ltd., silicone fiber lubricant] 5 parts and water 69 parts Is passed through an adhering roll adjusted so as to adhere to each filament by 1 to 2% (solid content), and then is passed through a stretching plate (80 to 100 ° C.) having a length of 150 cm for approximately 2%. .5 times stretching
A thermochromic filament of 080 denier / 24 filaments was obtained. After implanting the multifilament on the head of the doll, a heat treatment was performed at 70 ° C. for 30 minutes. When the hair of the obtained doll was immersed in a bath at a water temperature of about 35 ° C., the hair turned from red to colorless. When the hair was taken out of the bath, the water repellent effect was remarkable, and almost no water adhered, and the hair dried quickly.

[0015]

Comparative Example 1 Using the same chip as the thermochromic pigment-mixed chip of Example 1, a melt-spinning apparatus was used to spin out the filament, and its filament was used in 15 parts of Delion PP-644 (a fiber spinning agent manufactured by Takemoto Yushi Co., Ltd.) and 15 parts of water. The hair of the doll was constructed in the same manner as in Example 1, except that the aqueous solution of the oil was formed.
The hair was soaked in a water bath and taken out. The drainage was poor and it took a whole day and night to dry.

[0016]

Example 2 A water repellent treatment solution was applied to Paragit ASP [a paraffin water repellent emulsion manufactured by Meisei Chemical Industry Co., Ltd.] 13
Part, Asahigard AG-480 [Fluorine water repellent emulsion manufactured by Meisei Chemical Industry Co., Ltd.], 13 parts, Derektor L
Example 1 except that M-3 [Antistatic agent manufactured by Meisei Chemical Industry Co., Ltd.] 1 part, TRICOL S-1005 [Takeshita Yushi Co., Ltd. silicon based fiber lubricant] 5 parts and water 69 parts.
In the same manner as in the above, hair composed of thermochromic multifilament was obtained. When the water repellency effect of the hair was tested, it showed the same performance as that of Example 1. Further, when the hair-dressing property was tested by using a comb, the hair could be smoothly arranged.

Next, the results of comparative tests of Examples 1 and 2 of the present invention and Comparative Example 1 will be described by the following test methods. The filament implanted on the head of the doll is immersed in a water bath at about 35 ° C., and then taken out of the water bath.
Do it twice. The amount of water remaining in the filament is measured, and the difference from that before immersion in a water bath is calculated to calculate the remaining water ratio (%). As a result, in the system of Example 1, 6% (first time) and 11% (2
Time), complete drying time (30 minutes), in the system of Comparative Example 1,
23% (first time), 27% (second time), complete drying (all day and night), 11% (first time), 13% in the system of Example 2
(Second time), the state of complete drying time (1 hour).

[0018]

According to the present invention, the thermochromic water-repellent artificial hair for toys of the present invention can be discolored by heating or cooling, and can enjoy the taste and unexpectedness of discoloration, and immerse the hair in hot or cold water. Even if the hair part is subjected to a play of discoloration, the hair part quickly drains and dries, and it is difficult to cause water-wetting trouble due to undulation. Does not hinder repetitive play. In addition, comb also has excellent hair styling due, is suitable for young children of the doll, the head hair for stuffed toys.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A63H 1/00-37/00 A41G 3/00

Claims (2)

(57) [Claims] 1. A surface of each filament of a thermochromic multifilament yarn formed by kneading a thermochromic material with a thermoplastic resin , a fluorine-based, paraffin-based, polyethylene-based, alkylethylene urea-based, silicon One or more water repellents selected from the group consisting of resin compounds
And a silicone-based lubricant having an affinity for the water repellent,
Spinning oil for fiber selected from paraffin and fatty acid ester
Toys a mixture of agents, comprising a solid water-repellent agent content deposited at a rate of 0.1 to 10.0% by weight with respect to the filaments
For thermosensitive water repellent artificial hair. 2. A thermochromic material is kneaded with a thermoplastic resin.
Of thermochromic multifilament yarn formed by heating
Fluorine, paraffin, polyethylene, alk
Group consisting of ethylene urea and silicone resin compounds
One or more water repellents selected from the group consisting of:
Silicone lubricant with affinity, liquid paraffin, fat
Of mixing fiber spinning oils selected from acid esters
Drawing of filament discharged from the melt spinning nozzle
Temperature sensing for toys characterized by being applied before the process
A method for producing discolorable water-repellent artificial hair.