JP2011229807A - Water-allochroic drawing toy and water-allochroic drawing toy set using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-allochroic drawing toy and a water-allochroic drawing toy set using the water-allochroic drawing toy hardly causing water to stick to a part provided with images around a water-allochroic sheet, taking no time to store the sheet because of excelling in drying property even if water sticks, and preventing articles around from getting wet when the sheet is stored and preserved.SOLUTION: The water-allochroic drawing toy 1 includes the water-allochroic sheet 2 including, on a support body 21, a porous layer 22 formed by sticking a low refractive index pigment in a dispersed state to binder resin and different in transparency between a liquid absorbed state and a liquid non-absorbed state; a water impermeable resin member 3 covering the periphery of the water-allochroic sheet; and a water impermeable resin sheet 4. The water impermeable resin member is provided with the images 33, and the lower face of the water impermeable resin member is stuck to the side, provided with the porous layer, of the water-allochroic sheet. The water impermeable resin sheet is disposed at the lower faces of the water-allochroic sheet and water impermeable resin member. A water-allochroic drawing toy set uses the water-allochroic drawing toy 1.

Description

  The present invention relates to a water discoloration drawing toy capable of forming an image by adhesion of water and a water discoloration drawing toy set using the same.

Conventionally, a water-color-changing sheet rich in decorativeness in which a porous layer in which a low refractive index pigment is fixed in a dispersed state in a binder resin is provided at the center of a support, and an image such as a pattern is provided around the support. (For example, refer to Patent Documents 1 and 2).
When the porous layer is in a dry state, the water-coloring sheet conceals the lower layer, and when a medium such as water is absorbed, the layer can be transparent or translucent to visually recognize the lower layer, and when the absorbed portion is dried, the original state is restored. However, if water adheres to the area where the surrounding image is provided, it takes time to dry and it takes time to store the sheet, or it is stored before the sheet dries. In some cases, the surrounding items were wetted.

JP 2003-33985 A JP 2007-244853 A

  The present invention is intended to solve the above-mentioned problems, and it is difficult for water to adhere to a portion provided with an image around the water discoloring sheet. It is an object of the present invention to provide a water-coloring drawing toy set and a water-coloring drawing toy set using the same, which do not take time for storage and do not wet surrounding articles when storing and storing sheets.

The present invention provides a water discolorable sheet provided with a porous layer having different transparency in a liquid absorption state and a non-liquid absorption state in which a low refractive index pigment is fixed to a binder resin in a dispersed state on a support; The water-impermeable resin member covering the periphery of the water-coloring sheet, and a water-impermeable resin sheet, and an image is provided on the water-impermeable resin member, and a porous layer of the water-coloring sheet is formed. A water discoloration drawing toy comprising: a water dispersible resin member fixed on a provided side and a lower surface of a water impervious resin member; and a water impervious resin sheet disposed on a lower surface of the water dispersible sheet and the water impervious resin member. As a requirement.
Further, the water-impermeable resin member is a member in which a resin sheet is fixed on a cloth, the resin sheet of the water-impermeable resin member has transparency, and the cloth and the resin sheet are interposed between them. An image is formed, the side on which the porous layer of the water-color-changing sheet is provided and the lower surface of the water-impermeable resin member are fixed by sewing, the water-impermeable resin member and the water-impermeable material It is a requirement that the adhesive resin sheet is fixed by sewing.
Furthermore, a water discoloration drawing toy set comprising the water discoloration drawing toy and the water attachment tool is a requirement.

  In the present invention, it is difficult for water to adhere to a portion where an image around the water discoloring sheet is provided, and even if water adheres, the sheet is stored without taking time to store the sheet because it has excellent drying properties. It is possible to provide a water-coloring drawing toy that is highly practical and does not wet surrounding articles when stored, and a water-coloring drawing toy set using the same.

It is longitudinal cross-sectional explanatory drawing of one Example of this invention water discoloration drawing toy. It is a perspective view of the water discoloration drawing toy of FIG. It is a perspective view which shows the state which formed the image using the water attachment tool in the water discoloration drawing toy of FIG. It is longitudinal cross-sectional explanatory drawing of the other Example of this invention water discoloration drawing toy.

The water discolorable sheet is provided with a porous layer having different transparency between the liquid absorbing state and the non-liquid absorbing state on the upper surface of the support.
The material of the support is not particularly limited, and a flexible resin sheet such as polyethylene, polypropylene, polyethylene terephthalate, or vinyl chloride, or a fabric such as a woven fabric, a knitted fabric, or a nonwoven fabric is used.
Although the shape of the said support body is not specifically limited, It is preferable to set it as the rectangle or square which is easy to adhere to the water-impermeable resin member which covers the circumference | surroundings of the water discoloration sheet | seat mentioned later.

The porous layer formed on the support is a layer in which a low refractive index pigment is fixed in a dispersed state together with a binder resin.
Examples of the low refractive index pigment include silicic acid and salts thereof, barite powder, barium sulfate, barium carbonate, calcium carbonate, gypsum, clay, talc, alumina white, magnesium carbonate, and the like. It is in the range of 1.8, and shows good transparency when water is absorbed.
Examples of the silicic acid salts include aluminum silicate, aluminum potassium silicate, sodium aluminum silicate, aluminum calcium silicate, potassium silicate, calcium silicate, calcium sodium silicate, sodium silicate, magnesium silicate, and magnesium potassium silicate.
The particle diameter of the low refractive index pigment is not particularly limited, but a pigment having a thickness of 0.03 to 10.0 μm is preferably used.
Two or more of the low refractive index pigments can be used in combination.
In addition, silicic acid is mentioned as a low-refractive-index pigment used suitably, Although the silicic acid manufactured by a dry process may be sufficient, the silicic acid manufactured by a wet method (henceforth a wet process silicic acid) is more effective. And satisfies practicality.
This point will be described below.
Silicic acid is produced as amorphous amorphous silicic acid, and according to its production method, a dry process using a gas phase reaction such as thermal decomposition of silicon halide such as silicon tetrachloride (hereinafter referred to as dry process silicic acid) These are roughly classified into those by a wet method using a liquid phase reaction such as decomposition by an acid such as sodium silicate. In order to function as a porous layer, a wet method silicic acid is suitable.
This is because the dry process silicic acid and the wet process silicic acid have different structures, and the dry process silicic acid forms a three-dimensional structure in which the silicic acid is closely bound, whereas the wet process silicic acid has a long molecular arrangement due to condensation of the silicic acid. It has a so-called two-dimensional structure portion formed.
Therefore, since the molecular structure is rough compared to dry process silicic acid, when wet process silicic acid is applied to the porous layer, it is superior in the diffused reflection of light in the dry state compared to the system using dry process silicic acid. It is presumed that the concealment property at the site will increase.
In addition, since the porous layer absorbs water, the wet method silicic acid has more hydroxyl groups present as silanol groups on the particle surface than the dry method silicic acid, and has a high degree of hydrophilicity. Used.

The low refractive index pigment in the porous layer depends on properties such as particle diameter, specific surface area, oil absorption, etc., in order to satisfy both the concealability in the normal state and the transparency in the liquid absorption state, preferably the coating amount is 1 to 30 g / ^{m 2,} more preferably 5 to 20 g / ^{m 2.}
If it is less than 1 g / m ² , it is difficult to obtain sufficient concealability in a normal state, and if it exceeds 30 g / m ² , it is difficult to obtain sufficient transparency during liquid absorption.
The low refractive index pigment is dispersed in a vehicle containing a binder resin as a binder, and is applied to a substrate, and then the volatile matter is dried to form a porous layer.
Examples of the binder resin include urethane resin, nylon resin, vinyl acetate resin, acrylic ester resin, acrylic ester copolymer resin, acrylic polyol resin, vinyl chloride-vinyl acetate copolymer resin, maleic resin, polyester resin, styrene. Resin, styrene copolymer resin, polyethylene resin, polycarbonate resin, epoxy resin, styrene-butadiene copolymer resin, acrylonitrile-butadiene copolymer resin, methyl methacrylate-butadiene copolymer resin, butadiene resin, chloroprene resin, melamine resin, and the above Each resin emulsion, casein, starch, cellulose derivative, polyvinyl alcohol, urea resin, phenol resin and the like can be mentioned.
The mixing ratio of the low refractive index pigment and these binder resins depends on the type and properties of the low refractive index pigment, but preferably the binder resin solid content is 0.5 to 1 part by mass with respect to 1 part by mass of the low refractive index pigment. 2 parts by mass, and more preferably 0.8 to 1.5 parts by mass. When the binder resin solid content is less than 0.5 parts by mass with respect to 1 part by mass of the low refractive index pigment, it is difficult to obtain a practical film strength of the porous layer, and the content exceeds 2 parts by mass. In this case, the water permeability into the porous layer is deteriorated.
Since the porous layer has a smaller mixing ratio of the binder resin to the colorant than a general coating film, it is difficult to obtain sufficient film strength. Therefore, in order to increase the scratch resistance, it is effective to use a nylon resin or a urethane resin among the binder resins.
Examples of the urethane resin include a polyester urethane resin, a polycarbonate urethane resin, a polyether urethane resin, and the like, and two or more kinds may be used in combination. In addition, a urethane emulsion resin in which the resin is emulsified and dispersed in water, or a colloid in which the resin is self-emulsified without the need for an emulsifier by an ionic group of the ionic urethane resin (urethane ionomer) itself and dissolved or dispersed in water. A dispersion type (ionomer type) urethane resin can also be used.
The urethane resin may be either a water-based urethane resin or an oil-based urethane resin, but a water-based urethane resin, in particular, a urethane emulsion resin or a colloidally dispersed urethane resin is preferably used.
The urethane resin can be used alone, but other binder resins can be used in combination depending on the type of support and the performance required for the coating. When a binder resin other than the urethane resin is used in combination, in order to obtain a practical film strength, it is preferable to contain 30% or more of the urethane resin in a solid mass ratio in the binder resin of the porous layer. In the binder resin, the crosslinkable resin can be further improved in film strength by adding an arbitrary crosslinking agent and crosslinking.
The binder resin has a large or small affinity with water. By combining these, the penetration time into the porous layer, the degree of penetration, and the slow speed of drying after the penetration can be adjusted. Furthermore, the said adjustment can be controlled by adding a dispersing agent suitably.

  The porous layer is a known means such as screen printing, offset printing, gravure printing, coater, tampo printing, transfer printing, brush coating, spray coating, electrostatic coating, electrodeposition coating, flow coating, roller It can be formed by coating, dip coating or the like.

The water-impermeable resin member is a member that covers the periphery of the water-color-changing sheet, and a member obtained by bonding a resin sheet on a cloth such as a resin sheet or a nonwoven fabric is used.
As the resin sheet, a resin sheet of polyethylene, polypropylene, polyethylene terephthalate, vinyl chloride or the like is used.
The water-impermeable resin member is provided with images such as letters, symbols, numbers, patterns, and patterns to improve the decorativeness of the water-coloring drawing toy.
In addition to the upper surface of the water-impermeable resin member, the portion where the image is formed may be the lower surface as long as it is a transparent member. Alternatively, an image may be formed on a fabric and a transparent resin sheet may be bonded to the upper surface thereof.
The water-impermeable resin member may have a three-dimensional shape having irregularities in addition to a planar shape.
The water-impermeable resin member is fixed around the water-color-changing sheet, and is formed by fixing the side of the water-color-changing sheet on which the porous layer is provided and the lower surface of the water-impermeable resin member. Therefore, it is possible to prevent water adhering to the porous layer from flowing out onto the water-impermeable resin member, and it is possible to prevent the floor from being contaminated by the outflowed water and requiring troublesome wiping.
Examples of the fixing means include sticking with an adhesive and sewing.

As the water-impermeable resin sheet and the water-impermeable resin sheet disposed on the lower surface of the water-impermeable resin member, those obtained by bonding a resin sheet on a cloth such as a resin sheet or a nonwoven fabric are used.
As the resin sheet, a resin sheet of polyethylene, polypropylene, polyethylene terephthalate, vinyl chloride or the like is used.
The water-impermeable resin sheet and the lower surface of the water-impermeable resin member are preferably fixed, and are fixed by sticking with an adhesive, sewing, or the like.
In addition, if necessary, the water-impermeable resin sheet and the lower surface of the water-color-changing sheet can be fixed.
With the above configuration, it is possible to prevent water adhering to the water discoloring sheet from leaking to the floor surface from the joint with the water-impermeable resin member, and to wipe the floor without contaminating the floor with the outflowed water. A water-coloring drawing toy without trouble is obtained.

As means for adhering water to the water-coloring drawing toy, a hand or finger can be wetted with water and brought into contact with the porous layer. The water adhering tool in the form, a water adhering tool in the form of a writing or applicator in which water is contained in the container and a fibrous body or brush for drawing out the water in the container is provided.
In addition, as a preferable water adhering tool, it is a water adhering instrument in the form of a writing instrument or applicator applied with a plastic porous body or fiber processed body having continuous pores as a pen tip member, which can easily form a writing image and has practicality. Can be increased.
The plastic porous body or fiber processed body having the continuous pores may be any one that absorbs and discharges water in an appropriate amount, and focuses the continuous pore bodies and fibers of general-purpose polyolefin-based, polyurethane-based, and other various plastics. Brush-like, fiber-resin-processed or heat-welded, felt, non-woven fabric, and the shape and dimensions can be set arbitrarily.
A water discoloration drawing toy set can be obtained by combining the water adhering tool and the water discoloration drawing toy, and portability and convenience can be satisfied.

Examples are shown below, but the present invention is not limited thereto. In addition, the part in an Example shows a mass part.
Example 1
Preparation of Water-Discoloring Sheet On the upper surface of a woven fabric (60 cm × 60 cm tropical fabric, basis weight: 100 g / cm ² ) made of white polyester fiber as a support 21, a wet process silicic acid [trade name: Nipseal E-200, Japan Silica Industry Co., Ltd.] 15 parts, blue pigment 0.1 part, urethane emulsion [trade name: Hydran HW-930, Dainippon Ink & Chemicals, solid content 50%] 30 parts, water 40 parts, Using a blue screen printing ink in which 0.5 parts of a silicone-based antifoaming agent, 3 parts of a thickener for water-based ink, 1 part of ethylene glycol and 3 parts of a blocked isocyanate-based crosslinking agent are uniformly mixed and stirred. A solid screen was printed on the entire screen with a mesh screen plate, and was dried and cured at 130 ° C. for 5 minutes to form a porous layer 22 to obtain a water-discoloring sheet 2.

Preparation of water-impermeable resin member An image 33 (alphabetic characters and numbers) is printed on the upper surface of a white polyvinyl chloride resin sheet 31 having a thickness of 0.3 mm by screen printing using an oil-based screen printing ink. A permeable resin member 3 was obtained.

Production of water-coloring drawing toy Sewn and fixed around the water-coloring sheet so that the lower surface of the water-impermeable resin member is located on the upper surface of the porous layer of the water-coloring sheet, 100 cm × 100 cm The water-impermeable resin member was cut so as to have a size of.
Next, a water-impermeable resin sheet 4 made of a white ethylene vinyl acetate resin film having a thickness of 0.2 mm is disposed on the lower surface of the water-color-changing sheet and the water-impermeable resin member, and the outer periphery of the water-impermeable resin member is sewn. By doing so, the water discoloration drawing toy 1 was obtained (see FIGS. 1 and 2).

The water discoloration drawing toy exhibits a light blue color when the porous layer is in a dry state, but the porous layer becomes transparent by the application of water and a deep blue color is visually recognized. In the state where water was attached, the above-mentioned appearance was exhibited, but the blue color gradually became lighter as it dried, and in the completely dried state, it returned to the original light blue again. The aspect change could be repeated.
As a water adhering means, using a water adhering tool 5 in the form of a writing instrument having a bullet-shaped fiber pen body (made of nylon resin, diameter 7 mm) as a water adhering member and capable of containing water in the shaft cylinder, When written, a clear dark blue handwriting with a width of 5 to 6 mm is formed. In the state where water was attached, the above-mentioned appearance was exhibited, but the blue color gradually became lighter as it dried, and in the completely dried state, it returned to the original light blue again. The change in appearance could be repeated (see FIG. 3).
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 2
A water discoloration drawing toy produced in Example 1 and a water adhering tool in the form of a writing instrument having a bullet-shaped fiber pen body (made of nylon resin, diameter 7 mm) at the tip, and capable of containing water in the shaft tube In combination, a water discoloration drawing toy set was obtained.
When writing on the porous layer of the water-coloring drawing toy using a water adhering tool, a handwriting was formed as in Example 1, and returned to the original light blue again in a completely dry state. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 3
Production of water-color-changing sheet Solid printing was performed using blue non-color-changing ink on the upper surface of a woven fabric (60 cm × 60 cm tropical fabric, basis weight: 100 g / cm ² ) made of white polyester fiber as support 21. A non-discoloring layer 23 was formed.
Next, on the non-discoloring layer, 15 parts of wet-process silicic acid [trade name: NIPSEAL E-200, manufactured by Nippon Silica Industry Co., Ltd.], urethane emulsion [trade name: Hydran HW-930, Dainippon Ink & Chemicals, Inc. ), 50% solids] 30 parts, 40 parts water, 0.5 parts silicone antifoam, 3 parts thickener for water-based ink, 1 part ethylene glycol, 3 parts blocked isocyanate crosslinking agent Using a white screen printing ink obtained by stirring, solid printing is performed on the entire surface with a 100-mesh screen plate, followed by drying and curing at 130 ° C. for 5 minutes to form the porous layer 22, thereby forming the water discolorable sheet 2. Obtained.

Preparation of water-impermeable resin member An image 33 (pattern) is formed on the entire surface of the white fabric 32 (nonwoven fabric, basis weight 60 g / cm ² ) using oil-based offset printing ink composed of yellow, cyan, magenta, and black. Printing was performed, and a transparent polypropylene resin sheet 31 having a thickness of 0.2 mm was attached to the upper surface thereof using an adhesive to obtain a water-impermeable resin member 3.

Preparation of water-coloring drawing toy Sewn and fixed around the water-coloring sheet so that the lower surface of the water-impermeable resin member is located on the upper surface of the porous layer of the water-coloring sheet, 90 cm × 90 cm The water-impermeable resin member was cut so as to have a size of.
Next, a water-impermeable resin sheet 4 made of a white ethylene vinyl acetate film having a thickness of 0.25 mm is disposed on the lower surface of the water-color-changing sheet and the water-impermeable resin member, and is sewn with the outer periphery of the water-impermeable resin member. As a result, the water discoloration drawing toy 1 was obtained (see FIG. 4).

In the water-coloring toy drawing toy, the porous layer is white in a dry state, but the application of water makes the porous layer transparent and dark blue is visually recognized. In the state where water was attached, the above-mentioned appearance was exhibited, but the blue color gradually faded as it dried, and in the completely dried state, it returned to the original white again. The aspect change could be repeated.
Write on the porous layer using a water-adhesive tool in the form of a writing instrument that has a bullet-shaped fiber pen (made of nylon resin, 7 mm in diameter) at the tip as water adhering means, and that can accommodate water in the shaft cylinder. Then, a clear dark blue handwriting with a width of 5 to 6 mm is formed. In the state where water was attached, the above-mentioned appearance was exhibited, but the blue color gradually faded as it dried, and in the completely dried state, it returned to the original white again. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 4
A water discoloration drawing toy produced in Example 3 and a water adhering tool in the form of a writing instrument having a bullet-shaped fiber pen body (made of nylon resin, diameter 7 mm) at the tip, and capable of containing water in the shaft tube In combination, a water discoloration drawing toy set was obtained.
When writing on the porous layer of the water discoloration drawing toy using a water adhering tool, handwriting was formed in the same manner as in Example 3, and when it was completely dried, it returned to its original white color. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 5
Preparation of water-discoloring sheet Solid printing using a non-color-changing ink of green on the upper surface of a woven fabric (70 cm × 50 cm taffeta fabric, basis weight: 60 g / cm ² ) made of white nylon fiber as a support A discolored layer was formed.
Next, on the non-discoloring layer, 15 parts of wet process silicic acid [trade name: Nipseal E-200, manufactured by Nippon Silica Industry Co., Ltd.], urethane emulsion [trade name: Hydran HW-930, Dainippon Ink & Chemicals, Inc. ), 50% solids] 30 parts, 40 parts water, 0.5 parts silicone antifoam, 3 parts thickener for water-based ink, 1 part ethylene glycol, 3 parts blocked isocyanate crosslinking agent Using a white screen printing ink obtained by stirring, solid printing is performed on the entire surface of the non-color-changing layer with a 100-mesh screen plate, followed by drying and curing at 130 ° C. for 5 minutes to form a porous layer to form a water-discoloring property. A sheet was obtained.

Preparation of water-impermeable resin member An image (picture-like locomotive pattern) is formed on the upper surface of a white nonwoven fabric (weight per unit area: 40 g / cm ² ) using oil-based gravure printing ink consisting of yellow, cyan, magenta and black. Printing was performed on the entire surface, and a transparent polyolefin resin sheet having a thickness of 0.1 mm was further heat-pressed on the upper surface to obtain a water-impermeable resin member.

Production of water-coloring drawing toy Sewn and fixed around the water-coloring sheet so that the lower surface of the water-impermeable resin member is located on the upper surface of the porous layer of the water-coloring sheet, 110 cm × 90 cm The water-impermeable resin member was cut so as to have a size of.
Next, a water-impermeable resin sheet made of a 0.2 mm white olefin resin film is placed on the bottom surface of the water-coloring sheet and the water-impermeable resin member, and is secured to the outer periphery of the water-impermeable resin member by sewing. A water discoloration drawing toy was obtained.

The water-coloring drawing toy exhibits a white color when the porous layer is in a dry state, but the porous layer becomes transparent by application of water, and dark green color is visually recognized. In the state where water was adhered, the above-mentioned appearance was exhibited, but as the color was dried, the green color gradually became lighter, and in the state where it was completely dried, the color returned to the original white again. The aspect change could be repeated.
As a water adhering means, using a water adhering tool in the form of a writing instrument having a bullet-shaped fiber pen body (made of nylon resin, diameter 7 mm) at the tip and capable of containing water in the shaft cylinder, When written, clear dark green handwriting with a width of 5 to 6 mm is formed. In the state where water was attached, the above-mentioned appearance was exhibited, but the green color gradually became lighter as it dried, and in the completely dried state, it returned to the original white again. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 6
A water discoloration drawing toy produced in Example 5 and a water adhering tool in the form of a writing instrument having a bullet-shaped fiber pen body (made of nylon resin, diameter 7 mm) at the tip, and capable of containing water in the shaft tube In combination, a water discoloration drawing toy set was obtained.
When writing on the porous layer of the water-coloring drawing toy using a water adhering tool, handwriting was formed as in Example 5, and when it was completely dried, it returned to its original white color. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 7
Preparation of water discoloration sheet Red non-discoloration on the upper surface of a white fabric (55 cm × 55 cm T / C (65/35) broad fabric, basis weight: 110 g / cm ² ) made of cotton and polyester fibers as a support A non-discoloring layer was formed by solid printing using a conductive ink.
Next, on the non-discoloring layer, 15 parts of wet-process silicic acid [trade name: NIPSEAL E-200, manufactured by Nippon Silica Industry Co., Ltd.], urethane emulsion [trade name: Hydran HW-930, Dainippon Ink & Chemicals, Inc. ), 50% solids] 30 parts, 40 parts water, 0.5 parts silicone antifoam, 3 parts thickener for water-based ink, 1 part ethylene glycol, 3 parts blocked isocyanate crosslinking agent Using a white screen printing ink obtained by stirring, solid printing was performed on the entire surface with a 100 mesh screen plate, followed by drying and curing at 130 ° C. for 5 minutes to form a porous layer to obtain a water discoloring sheet. .

Preparation of water-impermeable resin member An image (flower pattern) using water-based screen printing inks of pink, green, blue, black, and brown on the top surface of white polyester taffeta fabric (weight per unit area 70 g / cm ² ) Was printed on the entire surface, and a transparent polyvinyl chloride resin sheet having a thickness of 0.1 mm was further adhered to the upper surface thereof using an adhesive to obtain a water-impermeable resin member.

Preparation of water-coloring drawing toy Sewn and fixed around the water-coloring sheet so that the lower surface of the water-impermeable resin member is located on the upper surface of the porous layer of the water-coloring sheet, 95 cm × 95 cm The water-impermeable resin member was cut so as to have a size of.
Next, a water-impermeable resin sheet made of a 0.1 mm transparent urethane resin film is disposed on the lower surface of the water-coloring sheet and the water-impermeable resin member, and the water-coloring sheet, the water-impermeable resin member, and the adhesive A water discoloration drawing toy was obtained by sticking with

The water-coloring drawing toy exhibits a white color when the porous layer is in a dry state, but the porous layer becomes transparent by application of water, and a deep red color is visually recognized. In the state where water was attached, the above-mentioned appearance was exhibited, but the red color gradually faded as it dried, and in the completely dried state, the original white color was restored again. The aspect change could be repeated.
Write on the porous layer using a water-adhesive tool in the form of a writing instrument that has a bullet-shaped fiber pen (made of nylon resin, 7 mm in diameter) at the tip as water adhering means, and that can accommodate water in the shaft cylinder. Then, a clear dark red handwriting with a width of 5 to 6 mm is formed. In the state where water was attached, the above-mentioned appearance was exhibited, but the red color gradually faded as it dried, and in the completely dry state, it returned to the original white again. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

Example 8
A water discoloration drawing toy produced in Example 7 and a water adhering tool in the form of a writing instrument having a bullet-shaped fiber pen body (made of nylon resin, diameter 7 mm) at the tip, and capable of containing water in the shaft cylinder In combination, a water discoloration drawing toy set was obtained.
When writing on the porous layer of the water discoloration drawing toy using a water adhering tool, handwriting was formed as in Example 7, and it returned to its original white color when completely dried. The aspect change could be repeated.
In addition, the water adhering to the porous layer did not flow out of the joint between the water-color-changing sheet and the water-impermeable resin member, contaminating the floor, or requiring wiping work.
Furthermore, it is difficult for water to adhere to the water-impermeable resin member, and even if it adheres, it can be easily wiped off, so the time until the water attached to the water-coloring drawing toy dries is short, and storage does not take time. Also, convenience was excellent.

DESCRIPTION OF SYMBOLS 1 Water color change drawing toy 2 Water color change sheet 21 Support body 22 Porous layer 23 Non-color change layer 3 Water impermeable resin member 31 Resin sheet 32 Fabric 33 Image 4 Water impermeable resin sheet 5 Water adhesion tool

Claims (7)

  A water-discoloring sheet provided with a porous layer having different transparency in a liquid-absorbing state and a non-liquid-absorbing state in which a low refractive index pigment is fixed in a dispersed state in a binder resin on a support, and the water-discoloring sheet A water-impermeable resin member covering the periphery of the water-impermeable resin sheet, and an image formed on the water-impermeable resin member, and a side provided with the porous layer of the water-color-changing sheet; A water-coloring drawing toy comprising a bottom surface of a water-impermeable resin member and a water-coloring sheet and a water-impermeable resin sheet disposed on the bottom surface of the water-impermeable resin member.   The water-coloring drawing toy according to claim 1, wherein the water-impermeable resin member is a member in which a resin sheet is fixed on a fabric.   The water discolorable drawing toy according to claim 2, wherein the resin sheet of the water-impermeable resin member has transparency and forms an image between the fabric and the resin sheet.   The water-coloring drawing toy according to any one of claims 1 to 3, wherein a side of the water-coloring sheet provided with a porous layer and a lower surface of the water-impermeable resin member are fixed by sewing.   The water-coloring drawing toy according to any one of claims 1 to 4, wherein the water-impermeable resin member and the water-impermeable resin sheet are fixed by sewing.   A water discoloration drawing toy set comprising the water discoloration sheet according to claim 1 and a water adhering tool.   The water discoloration drawing toy set according to claim 6, wherein the water adhering tool is a writing instrument or an applicator to which a plastic porous body or a fiber processed body having continuous pores is applied as a pen tip member.

Images