JP7036551B2 - Hair for toys - Google Patents

Description

The present invention relates to toy hair. More specifically, the present invention relates to toy hair having an excellent function of fixing a state deformed to an arbitrary shape by applying water.

Conventionally, as toy hair whose state of being deformed into an arbitrary shape by application of water is fixed at an early stage, toy hair containing an alcohol-soluble resin has been disclosed (see, for example, Patent Documents 1 and 2).
The hair for toys is a filament composed of a single phase containing an alcohol-soluble resin, or a filament containing an alcohol-soluble resin in the sheath portion of a core-sheath type composite fiber, and is an antistatic agent (oil agent) to be adhered after spinning. ) The aqueous solution sometimes swelled and the filaments were bound to each other at the time of winding.
Further, although the filament containing the alcohol-soluble resin in the core of the core-sheath type composite fiber can prevent the filaments from binding to each other, the resin in the sheath has the effect of deforming into an arbitrary shape even when water is applied. Moreover, the shape retention after deformation was not satisfied.
Japanese Unexamined Patent Publication No. 2008-289525 Japanese Unexamined Patent Publication No. 2009-254791

INDUSTRIAL APPLICABILITY The present invention has good retention without binding filaments to each other, can be deformed into a flexible shape by applying water, can fix the deformed state, and can be deformed by drying for a long time. It is intended to provide highly convenient toy hair that can be fixed for a period of time and has the function of restoring the fixed shape to the original state or changing it to another shape as needed.

The present invention is for toy hair formed of a core-sheath type composite fiber composed of a core resin and a sheath resin, and the core resin has an alcohol-soluble resin and a glass transition temperature. It is made of a thermoplastic resin which is in the range of 0 to 50 ° C. and plastically deforms at 50 ° C. or lower, and the resin of the sheath portion is required to be a toy hair characterized by being made of a hydrophilic resin.
Further, the alcohol-soluble resin is a multi-element copolymerized nylon containing at least 6 nylon, 6, 6 nylon and 610 nylon, and the mass ratio of the alcohol-soluble resin contained in the resin of the core portion and the thermoplastic resin is It is 1: 9 to 5: 5, the thermoplastic resin is a resin selected from saturated polyester resin, acrylic resin, vinyl chloride-vinyl acetate copolymer resin, and styrene resin, and the hydrophilic resin is a polyamide resin. It is a requirement that the core portion or the sheath portion contains a reversible thermoplastic material or a photochromic material.

According to the present invention, the filaments do not bind to each other and have good retention, and the hair can be changed into a flexible shape by applying water, and the deformed state can be fixed before the water dries. It is possible to fix the deformed state due to drying for a longer period of time, and if necessary, the deformed hair can be restored to its original state or can be deformed into another shape. Can be provided.

The resin constituting the core of the toy hair of the present invention is formed of an alcohol-soluble resin and a thermoplastic resin having a glass transition temperature in the range of 0 to 50 ° C. and plastically deforming at 50 ° C. or lower.
The alcohol-soluble resin is a resin that is softened by water absorption and cured by drying, and examples thereof include thermoplastic alcohol-soluble nylon having excellent fiber-forming properties.
Among the alcohol-soluble nylons, copolymerized nylon containing at least 6,6 nylon, multiplex copolymerized nylon containing at least 6 nylon and 6,6 nylon, and multiplex copolymerized nylon containing at least 6 nylon, 6,6 nylon and 610 nylon. Alternatively, multi-element copolymerized nylon containing at least 6 nylon, 6, 6 nylon, 610 nylon and 12 nylon, type 8 nylon is preferably used, and multi-element copolymerized nylon containing at least 6 nylon, 6, 6 nylon and 610 nylon. Is more preferably used.
The alcohol-soluble resin in the core is deformed by applying water to show flexibility, and the deformed shape is fixed by drying the water because the resin is highly hydrophilic and has a crystalline structure due to water absorption. It is presumed that this is because the product collapses, has flexibility and the flexural modulus decreases, crystallizes again by drying, the flexural modulus increases, and the state of curability and deformation is maintained.

The thermoplastic resin having a glass transition temperature in the range of 0 to 50 ° C. and plastically deforming at 50 ° C. or lower can be provided with a function of deforming and holding an arbitrary shape of hair shape at or near a temperature in the living temperature range.
Examples of the thermoplastic resin include saturated polyester resin, acrylic resin, acrylic acid ester resin, methacrylic acid ester resin, vinyl acetate resin, polyamide resin, epoxy resin (uncured product), hydrocarbon resin, soft vinyl chloride resin, and ethylene. -Vinyl acetate copolymer resin, vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-acrylic copolymer resin, styrene resin, acrylic-styrene copolymer resin and the like can be mentioned.
Among the thermoplastic resins having a glass transition temperature in the range of 0 to 50 ° C. and plastically deforming at 50 ° C. or lower, the glass transition temperature is preferably 10 ° C. to 50 ° C., more preferably 20 ° C. to 40 ° C., still more preferable. A resin having a temperature of 30 ° C. to 40 ° C. is effective, and a saturated polyester resin, an acrylic resin, a vinyl chloride-vinyl acetate copolymer resin, a styrene resin and the like are preferably used.
By using the alcohol-soluble resin in combination with a thermoplastic resin having a glass transition temperature in the range of 0 to 50 ° C and plastically deforming at 50 ° C or lower, it has a function of softening by water absorption and hardening by drying, and a living temperature. Since it has the function of transforming and holding a hair shape of any shape at or near a temperature in the range, it can be transformed into a flexible shape by applying water and heating, and the deformed state by lowering the temperature is fixed before drying, and further. The state deformed by drying can be firmly fixed for a long period of time.
The mass ratio of the alcohol-soluble resin contained in the resin of the core portion to the thermoplastic resin is 1: 9 to 5: 5, preferably 1: 9 to 4: 6, and more preferably 1: 9 to. It is 3: 7.
By satisfying the above mass range, it is possible to sufficiently exhibit the function of fixing the deformed state by lowering the temperature before drying and the function of firmly fixing the deformed state by drying for a long period of time.

The resin constituting the sheath portion of the hair for toys of the present invention is formed of a hydrophilic resin (water permeable or hygroscopic resin) such as a polyamide resin, a polyurethane resin, a polyacrylic acid resin, and a cellulosic resin.
As the polyamide resin, 6 nylon, 6,6 nylon, 6,9 nylon, 11 nylon, 12 nylon, 6-12 copolymerized nylon, 6,9-12 copolymerized nylon, and polyamide elastomer having excellent fiber forming properties are suitable. Used for.
By using the resin in the sheath part, water can be attached to the resin in the core part, and the filaments are bound to each other at the time of winding by swelling with the antistatic agent (oil agent) aqueous solution attached after spinning. Can be prevented.

Fibers exhibiting various colors can also be obtained by adding general pigments, fluorescent pigments, reversible thermochromic materials, photochromic materials and the like to the core or sheath of the toy hair.
As the reversible thermochromic material, a reversible thermochromic composition containing three components of an electron-donating color-developing organic compound, an electron-accepting compound, and an organic compound medium that reversibly causes a color reaction is encapsulated in microcapsules. The encapsulated reversible thermochromic microcapsule pigment is preferably used.
The reversible thermochromic microcapsule pigment is contained in the resin in an amount of 0.5 to 40% by weight, preferably 1 to 30% by weight.
If the blending amount is less than 0.5% by weight, it is difficult to visually recognize a clear thermal discoloration effect, and if it exceeds 40% by weight, it is excessive and a residual color may be generated in a decolorized state.
As the photochromic material, a photochromic compound such as a spirooxazine-based compound, a spiropyran-based compound, or a diarylethene-based compound is preferably used.

The hair for toys of the present invention will be described in more detail by way of examples, but the present invention is not limited to this example. In addition, the compounding in an Example shows a part by mass.
Example 1
Preparation of hair for toys As an alcohol-soluble resin, 40 parts of 6-6, 6-610 ternary copolymerized nylon, 59 parts of polyester resin (glass transition temperature 34 ° C), and 1 part of brown colorant are mixed to form the core resin. Got
As the resin constituting the sheath portion, 100 parts of a polyamide resin (6-12 copolymerized nylon) was used.
The resin constituting the core portion is supplied to the core forming extruder, and the resin constituting the sheath portion is supplied to the sheath forming extruder, and the core portion / sheath portion = 6 / using a composite fiber spinning device. Brown toy hair (core-sheath type composite fiber) consisting of 20 filaments with a diameter of 90 μm by spinning at 190 ° C from a die having a 20-hole discharge port so as to be 4 (volume ratio) and stretching treatment. Got

Preparation of doll toys The hair for toys was transplanted to the head of a doll made of a plastic material and connected to the body to obtain a doll toy.
The hair of the doll toy had rigidity and could not be curled only by wrapping it around a hair curler.
When water is attached to the hair using a sprayer and further heated to 34 ° C. or higher by hand, the hair has flexibility, and in this state, it is wrapped around a cylindrical hair curler having a diameter of 9 mm and dried. When the curler was removed, the hair was curled with the same diameter as the curler, and the shape could be maintained for a long period of time like the permanent wave.
Next, apply water to the curled hair again using a sprayer, heat it to 34 ° C or higher by hand, and brush it while straightening it. I was able to return to the state.
Even if the curler is removed before the hair dries after water is attached to the hair and wrapped around the curler, the hair will be curled to the same diameter as the curler unless an external force is applied. Since it can be held for a long period of time, it is possible to satisfy the playfulness of curling without waiting for drying.
Furthermore, after applying water to the hair and wrapping it around the curler, before the hair dries, remove the curler and straighten it from the curled state to a straight line, and brush it while warming it to 34 ° C or higher by touch. It is also possible to return to the straight state of.
The shape change was deformed by the application of water and heating, and the shape could be fixed by lowering and drying, and had repetitive playability.
In addition, the hair can be curled by wrapping it in a hair curler after adhering water to it, or by wrapping dry hair in a curler and then adhering water to it and further heating it to 34 ° C or higher. ..

Example 2
Preparation of hair for toys As an alcohol-soluble resin, 20 parts of 6-6, 6-610 ternary copolymerized nylon, 79 parts of polyester resin (glass transition temperature 33 ° C), and 1 part of light brown colorant are mixed to form the core. Obtained resin.
As the resin constituting the sheath portion, 100 parts of a polyamide resin (6-11 copolymerized nylon) was used.
The resin constituting the core portion is supplied to the core forming extruder, and the resin constituting the sheath portion is supplied to the sheath forming extruder, and the core portion / sheath portion = 8 / using a composite fiber spinning device. Blonde-colored toy hair (core-sheath type composite fiber) consisting of 20 filaments with a diameter of 90 μm by spinning at 200 ° C from a die with a 20-hole discharge port so as to have a volume ratio of 2 (volume ratio). ) Was obtained.

Preparation of doll toys The hair for toys was transplanted to the head of a doll made of a plastic material and connected to the body to obtain a doll toy.
The hair of the doll was rigid and could not be curled just by wrapping it around a hair curler.
When water is attached to the hair using a sprayer and further heated to 33 ° C. or higher by hand, the hair has flexibility, and in this state, it is wrapped around a cylindrical hair curler having a diameter of 9 mm and dried. When the curler was removed, the hair was curled with the same diameter as the curler, and the shape could be maintained for a long period of time like the permanent wave.
Next, water is reattached to the curled hair using a sprayer, heated to 33 ° C or higher by hand, and brushed while straightening, the hair returns to the initial straight state and easily returns to the original straight state. I was able to return to the state.
Even if the curler is removed before the hair dries after water is attached to the hair and wrapped around the curler, the hair will be curled to the same diameter as the curler unless an external force is applied. Since it can be held for a long period of time, it is possible to satisfy the playfulness of curling without waiting for drying.
Furthermore, after applying water to the hair and wrapping it around the curler, remove the curler before the hair dries and stretch it from a curled state to a straight line, and then brush it while warming it to 33 ° C or higher by touch. It is also possible to return to the straight state of.
The shape change was deformed by the application of water and heating, and the shape could be fixed by lowering and drying, and had repetitive playability.
In addition, the hair can be curled by wrapping it in a hair curler after adhering water to it, or by wrapping dry hair in a curler and then adhering water to it and further heating it to 33 ° C or higher. ..

Example 3
Preparation of Hair for Toys As an alcohol-soluble resin, 15 parts of type 8 nylon, 84 parts of polyester resin (glass transition temperature 33 ° C.), and 1 part of a light brown colorant were mixed to obtain a resin for the core part.
As the resin constituting the sheath portion, 100 parts of a polyamide resin (6-12 copolymerized nylon) was used.
The resin constituting the core portion is supplied to the core forming extruder, and the resin constituting the sheath portion is supplied to the sheath forming extruder, and the core portion / sheath portion = 8 / using a composite fiber spinning device. Blonde-colored toy hair (core-sheath type composite fiber) consisting of 20 filaments with a diameter of 90 μm by spinning at 200 ° C from a die with a 20-hole discharge port so as to have a volume ratio of 2 (volume ratio). ) Was obtained.

Preparation of doll toys The hair for toys was transplanted to the head of a doll made of a plastic material and connected to the body to obtain a doll toy.
The hair of the doll was rigid and could not be curled just by wrapping it around a hair curler.
When water is attached to the hair using a sprayer and further heated to 33 ° C. or higher by hand, the hair has flexibility, and in this state, it is wrapped around a cylindrical hair curler having a diameter of 9 mm and dried. When the curler was removed, the hair was curled with the same diameter as the curler, and the shape could be maintained for a long period of time like the permanent wave.
Next, water is reattached to the curled hair using a sprayer, heated to 33 ° C or higher by hand, and brushed while straightening, the hair returns to the initial straight state and easily returns to the original straight state. I was able to return to the state.
Even if the curler is removed before the hair dries after water is attached to the hair and wrapped around the curler, the hair will be curled to the same diameter as the curler unless an external force is applied. Since it can be held for a long period of time, it is possible to satisfy the playfulness of curling without waiting for drying.
Furthermore, after applying water to the hair and wrapping it around the curler, remove the curler before the hair dries and stretch it from a curled state to a straight line, and then brush it while warming it to 33 ° C or higher by touch. It is also possible to return to the straight state of.
The shape change was deformed by the application of water and heating, and the shape could be fixed by lowering and drying, and had repetitive playability.
In addition, the hair can be curled by wrapping it in a hair curler after adhering water to it, or by wrapping dry hair in a curler and then adhering water to it and further heating it to 33 ° C or higher. ..

Example 4
Preparation of reversible thermochromic microcapsule pigment Reversible consisting of 2 parts 1,2-benz-6-diethylaminofluorane, 6 parts 1,1-bis (4-hydroxyphenyl) -n-octane, and 50 parts stearyl caprate The thermochromic composition was microencapsulated by an epoxy resin / amine interfacial polymerization method to obtain a reversible thermochromic microcapsule pigment having an average particle size of 15 μm.
The reversible thermochromic microcapsule pigment reversibly changed its color to colorless at 34 ° C. or higher and pink at 28 ° C. or lower.

Preparation of hair for toys 3 parts of the microcapsule pigment, 30 parts of 6-6, 6-610 ternary copolymerized nylon as alcohol-soluble resin, and 67 parts of polyester resin (glass transition temperature 34 ° C.) are mixed to form a core part. I got a resin to do.
As the resin constituting the sheath portion, 100 parts of a polyamide resin (6-12 copolymerized nylon) was used.
The resin constituting the core portion is supplied to the core forming extruder, and the resin constituting the sheath portion is supplied to the sheath forming extruder, and the core portion / sheath portion = 7 / using a composite fiber spinning device. A toy hair (core-sheath type composite fiber) consisting of 20 filaments having a diameter of 90 μm is obtained by spinning at 190 ° C. from a die having a 20-hole discharge port so as to have a volume ratio of 3 (volume ratio) and stretching the fibers. rice field.
The filament was colorless at 34 ° C. or higher and reversibly changed to pink at 28 ° C. or lower.

Preparation of doll toys The hair for toys was transplanted to the head of a doll made of a plastic material and connected to the body to obtain a doll toy.
The hair of the doll exhibits a pink color and rigidity at room temperature of 25 ° C., and when further heated to 34 ° C. or higher by touch, the hair becomes flexible and colorless, and in this state, between the apex. When the hair was sandwiched between corrugated plates having a distance of 10 mm and dried, and then the plate was removed, the hair became a wavy state having the same shape as the corrugated plate, and the shape could be maintained for a long period of time like the permanent wave.
Next, when water was reattached to the wavy hair using a sprayer, heated to 34 ° C or higher by hand, and brushed while straightening, the hair became colorless and returned to the initial straight state. ..
Even if the board is removed before the hair dries after water is attached to the hair and sandwiched between the boards, the hair will be in a wavy state with the same shape as the board unless an external force is applied. Since it can be held for a long period of time, it is possible to satisfy the playfulness of waving without waiting for drying.
Furthermore, after water is attached to the hair and sandwiched between the boards, the board is removed before the hair dries, the hair is heated to 34 ° C or higher by hand, and brushed while stretching from a wavy state to a straight state, the initial stage is achieved. You can also return it to a straight state.
The shape change was deformed by the application of water and heating, and the shape could be fixed by lowering and drying, and had repetitive playability.
In addition, the hair can be waved by adhering water to the board and then sandwiching it in a board to wave it, or by sandwiching dried hair in a board and then adhering water to the hair and heating it to 34 ° C. or higher.

Comparative Example 1
Preparation of Hair for Toys As an alcohol-soluble resin, 99 parts of 6-6, 6-610 ternary copolymerized nylon and 1 part of a brown colorant were mixed to obtain a resin for the core part.
As the resin constituting the sheath portion, 100 parts of a polyamide resin (6-12 copolymerized nylon) was used.
The resin constituting the core portion is supplied to the core forming extruder, and the resin constituting the sheath portion is supplied to the sheath forming extruder, and the core portion / sheath portion = 6 / using a composite fiber spinning device. Brown toy hair (core-sheath type composite fiber) consisting of 20 filaments with a diameter of 90 μm by spinning at 190 ° C from a die having a 20-hole discharge port so as to be 4 (volume ratio) and stretching treatment. Got

Preparation of doll toys The hair for toys was transplanted to the head of a doll made of a plastic material and connected to the body to obtain a doll toy.
The hair of the doll toy had rigidity and could not be curled only by wrapping it around a hair curler.
When water is attached to the hair using a sprayer, wrapped around a cylindrical hair curler with a diameter of 9 mm and dried, and then the curler is removed, the hair becomes curled with the same diameter as the curler, and becomes a permanent wave. Similarly, the shape could be maintained.
However, if the curler was removed before the hair dried after water was attached to the hair and wrapped around the curler, the hair hung down under its own weight and could not maintain the curled state, and the playability could not be satisfied. ..

Claims (6)

Hair for toys formed of a core-sheath type composite fiber composed of a core resin and a sheath resin, the core resin having an alcohol-soluble resin and a glass transition temperature of 0 to 50 ° C. Hair for toys, which is made of a thermoplastic resin that plastically deforms at 50 ° C. or lower, and the resin of the sheath portion is made of a hydrophilic resin. The toy hair according to claim 1, wherein the alcohol-soluble resin is a multi-layer copolymerized nylon containing at least 6 nylon, 6, 6 nylon and 610 nylon. The toy hair according to claim 1 or 2, wherein the mass ratio of the alcohol-soluble resin contained in the resin of the core portion and the thermoplastic resin is 1: 9 to 5: 5. The hair for toys according to any one of claims 1 to 3, wherein the thermoplastic resin is a resin selected from a saturated polyester resin, an acrylic resin, a vinyl chloride-vinyl acetate copolymer resin, and a styrene resin. The toy hair according to any one of claims 1 to 4, wherein the hydrophilic resin is a polyamide resin. The hair for a toy according to any one of claims 1 to 5, wherein the core portion or the sheath portion contains a reversible thermochromic material or a photochromic material.