JP3240881U - stamp - Google Patents

Abstract

An object of the present invention is to provide a stamp that can reliably prevent the fingers from being stained with ink when the stamp is attached or detached while suppressing a decrease in adhesion to an object such as hand soap. A stamp having a heat-sealed portion 2 formed by heat-melting the side and bottom surfaces of a stamp material 1 made of a porous material, the stamp material comprising a printed body 1a and an ink occluding body 1c laminated on the bottom surface of the printed body. An adhesive portion is provided in the heat-sealed portion on the lower surface of the stamp material. [Selection drawing] Fig. 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp that can be used detachably on an object.

In Cited Document 1, it is possible to attach and detach a soap dispenser (hand soap, etc.) in order to put a mark on the palm as an indicator of hand washing before hand washing, and a single impregnated ink for skin that can be washed with soap. A layer absorbent pad (print) is disclosed.
Further, in Cited Document 2, a printing material in which a lower layer (printing body) on which a printing plate is formed and an intermediate layer (ink occluding body) are laminated and the circumferential surfaces of both layers in the thickness direction are joined by heat sealing. It has been known.

However, the side and bottom surfaces of the absorbent pad described in Cited Document 1 are not subjected to ink impermeability treatment such as heat sealing. There was weakness.
On the other hand, in the stamp material described in Cited Document 2, the peripheral surface of the two-layer type stamp material consisting of the lower layer (printing body) and the intermediate layer (ink occluding body) is heat-sealed. has not been applied. Since the stamp material is used while being incorporated in the holder member of the stamper, there is no need to heat-seal the lower surface of the intermediate layer, and the stamper replenishes ink from the lower surface side of the intermediate layer. This is because of the configuration. Therefore, in the stamp material itself, the lower surface of the intermediate layer impregnated with ink is always exposed, so there is a risk that fingers will get dirty when used as a stamp. If it does, it may fall off due to a decrease in adhesive strength to the object.

Japanese translation of PCT publication No. 2008-500882 JP-A-2000-280590

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a stamp that can reliably prevent the fingers from being stained with ink when the stamp is attached or detached while suppressing a decrease in adhesive strength to an object such as hand soap. The purpose is to

A first idea for solving the above-mentioned problems is a stamp having a heat-sealed portion obtained by heat-melting the side and bottom surfaces of a stamp material made of a porous material.

A second device completed to solve the above problems is the first device, wherein the stamp material is composed of a printed body and an ink absorbing body laminated on the lower surface of the printed body. It is the stamp described in

A third device completed to solve the above problems is the stamp according to the first or second aspect, characterized in that an adhesive portion is provided in the heat-sealed portion on the lower surface of the stamp material.

In the first invention, since the stamp has a heat-sealed portion obtained by heat-melting the side and bottom surfaces of the stamp material made of a porous body, the stamp can be attached and detached while suppressing a decrease in adhesive strength to an object such as hand soap. It is possible to reliably prevent ink stains on fingers.

In the second invention, the stamp material is composed of a printed body and an ink absorbing body laminated on the lower surface of the printed body. can be increased, eliminating the need to frequently replace the stamp attached to the object.

In the third invention, the seal according to the first or second aspect is characterized in that an adhesive portion is provided in the heat-sealed portion on the lower surface of the stamp material. There is no need to do it, and it can be attached and detached with the feeling of using it like a normal sticker, improving convenience.

1 is a cross-sectional view of a stamp according to an embodiment of the present invention; FIG. It is each process drawing for demonstrating the manufacturing method of the stamp by embodiment of this invention.

Preferred embodiments of the present invention are described below with reference to the drawings.
FIG. 1 is a cross-sectional view showing a stamp according to an embodiment of the present invention, and FIGS. In the present invention, "upper" refers to the side on which the printed surface is formed, and "lower" refers to the opposite side.

As shown in FIG. 1, the stamp of the present invention has a cylindrical stamp material 1 composed of a printed body 1a having a printed surface 1b and an ink absorbing body 1c laminated on the lower surface of the printed body 1a. A seal portion 2 is formed. Both the printed body 1a and the ink occluding body 1c are formed of a porous material made of thermoplastic resin, and the details thereof will be described later. The heat-sealed portion 2 is formed by thermally fusing the side surfaces of the printed body 1a and the ink occluding body 1c in a laminated state and the entire lower surface of the ink occluding body 1c. The heat-sealing part 2 functions as an adhesive to connect the two layers, and at the same time, it also prevents the fingers from being stained with ink when attaching and detaching the stamp while suppressing the decrease in adhesive strength when attaching the bottom surface of the stamp to an object. contributing. In the embodiment of the present invention, the stamp material 1 is of a two-layer type consisting of the printed body 1a and the ink absorbing body 1c, but may be composed of a single layer consisting of the printed body 1a only. In this case, the manufacturing process is simplified and the thickness of the stamp is reduced. In addition, the shape of the stamp may be an elliptical columnar shape, a polygonal columnar shape, or the like, other than the columnar shape.

The printing surface 1b is formed by melting and collapsing the porous portion of the surface of the printing body 1a by heat or the like to create a portion where the ink does not ooze and a portion where the ink does not melt and oozes. For the printing surface 1b, a continuous porous NBR rubber or the like which has been used conventionally can be used to make the surface of the printing body 1a uneven by laser processing or the like.

The thermoplastic porous material that can be used in the present invention includes, as raw materials, polyethylene, polypropylene, polybutylene, polyurethane, polystyrene, polyester, polycarbonate, polyvinyl chloride, polyethylene thermoplastic elastomer, polypropylene thermoplastic elastomer, and polybutylene. Thermoplastic resins such as thermoplastic elastomers, polyurethane-based thermoplastic elastomers, polystyrene-based thermoplastic elastomers, polydiene-based thermoplastic elastomers, and polychloride-based thermoplastic elastomers can be used. This can be made into open cells by a known elution method, foaming method, sintering method or the like, and sheet-like or roll-like ones are mainly used. The thermoplastic resin preferably has a melting point of 50° C. to 150° C., and the cell diameter of the porous stamp material 1 is not particularly limited, but preferably in the range of 2 to 100 μm. The bubble diameter of the printed body 1a is smaller than that of the ink occluding body 1c. As a result, the printed body 1a has a stronger capillary force, and the ink can smoothly permeate from the ink absorbing body 1c to the printed body 1a.

As described above, the stamp of the present invention is intended to be used by detachably attaching the lower surface thereof to an object with an adhesive or the like. Examples of the object include a discharge container for hand-washing detergent (hand soap, etc.). In this case, as the ink to be impregnated in the ink occluding body 1c, water-based ink for the skin is used, which disappears when a mark made on the palm is washed with a commercially available detergent for about 30 seconds so as to serve as an index or standard for hand washing. It is preferred to use, and the details will be described later. When a seal impregnated with the ink is detachably attached to the top surface of the hand soap pump, the impression is applied to the palm when the pump is pressed before washing hands, so marking on the palm and the use of detergent for hand washing are difficult. Simultaneous supply can maintain the same workability as normal hand-washing, and is also effective for proper hand-washing habits.
It can also be used for objects other than hand soap, such as fingers and palms. When used by being attached to a part of the body, there is no need to carry a conventional stick-shaped stamp or the like, which improves convenience.

Specific examples of the water-based ink for skin include a water-based ink for skin comprising at least dye, water, polyhydric alcohol, and phosphoprotein.
The polyhydric alcohol used in the ink is selected from ethylene glycol, propylene glycol, butylene glycol, pentyl glycol, hexyl glycol, diethylene glycol, triethylene glycol, diethylene glycol, in consideration of evaporability, dye solubility, and anti-bleeding properties. Polyhydric alcohols such as triethylene glycol, dipropylene glycol, tripropylene glycol, glycerin, diethanolamine, and triethanolamine can be used, and any of these can be mixed and used.
As the phosphoprotein, one or more selected from powdered skim milk, casein, sodium caseinate, calcium caseinate, potassium caseinate, and magnesium caseinate can be added. By adding a phosphoprotein, even if it adheres to human skin, it can be easily washed off.
Oil-based inks can also be used as skin inks without any problems, and castor oil, castor oil fatty acid derivatives, and the like can be used as oil-based solvents. In this case, it is possible to prevent printing defects due to drying of the printed surface.
The ink is not limited to the above inks as long as it can be used as an index or standard for hand washing. For example, ink that changes color after hand washing for a predetermined period of time can be used without any problem.

The stamp of the present invention may have an adhesive portion in the heat-sealed portion 2 on the lower surface of the stamp in order to save the trouble of separately preparing an adhesive when attaching the stamp to an object. The adhesive part is preferably detachable from the object, and examples thereof include double-sided tape, adhesive, pressure-sensitive adhesive, adhesive resin, and the like. In the stamp of the present invention, the heat-sealed portion 2 is formed on the lower surface of the ink occluding body 1c, and the ink does not come into contact with the adhesive portion. It is possible to bond while maintaining the adhesive strength of

Next, a stamp manufacturing method according to an embodiment of the present invention will be described with reference to FIG.
In the first step, as shown in FIG. and pressed for several seconds to form the heat seal portion 2 on the lower surface of the ink occluding body 1c. In this step, it is preferable to place a protective film (not shown) on the hot plate H in order to protect the lower surface of the ink occluding member 1c and ensure the releasability of the hot plate H from the mold. A plastic film that can withstand high temperatures is used as the protective film, and examples thereof include polyethylene terephthalate film, polyethylene naphthalate film, polyamide film, polytetrafluoroethylene film, fluorine film, and silicone film.

In the second step, as shown in FIG. 2(2), ink is impregnated from the upper surface of the ink occluding body 1c. The ink to be impregnated is, as described above, skin ink or conventionally known stamp ink. The impregnation method is preferably a dropping method so that the ink does not adhere to the heat-sealed portion 2 on the lower surface of the ink occluding body 1c.

In the third step, as shown in FIG. 2(3), a non-ink impregnated printed body 1a is laminated on the upper surface of the ink occluding body 1c impregnated with ink. The printed body 1a has the same shape as the ink occluding body 1c, and the printed body 1a and the ink occluding body 1c are laminated so as not to be displaced from each other. The supply of ink to the printed body 1a is started from the time of lamination, but the process proceeds to the next fourth step before the ink permeates the printed surface 1b.

In the fourth step, as shown in FIG. 2(4), the heat-sealed portion 2 of the ink occluding body 1c and the printing surface 1b of the printing body 1a are held between fingers and pressed against the hot plate H. It is thermally melted to form a heat-sealed portion 2 over the entire circumference. If the printed surface 1b is not permeated with ink, it is possible to thermally melt the printed surface 1b without staining the fingers when holding the printed surface 1b. Further, since the stamp material 1 of this embodiment has a columnar shape, the heat plate 1 is sandwiched between the central portions of the heat-sealed portion 2 of the ink occluding body 1c and the printing surface 1b of the printing body 1a in the direction of the arrow in the drawing. By rotating on H, it is possible to efficiently form a heat seal. In this step, it is supposed to be held by fingers, but it is also possible to form the heat-sealed portion 2 by rotating on the hot plate H while being held by a holding portion (not shown) of a manufacturing apparatus or the like. In this step, as in the first step, a protective film (not shown) is placed on the hot plate H in order to protect the side surfaces of both layers and ensure the releasability of the hot plate H. is preferred.

Thermal fusion bonding of the printed body 1a and the ink occluding body 1c to the side surface of the two-layered stamp material 1 has been conventionally performed. and an intermediate layer (corresponding to the ink occluding body 1c) are fixed to each other in a laminated state by means of an adhesive applied in a lattice-like or scattered manner, and then punched out by a heated Thomson-type punching die. It is manufactured by forming a heat-sealed portion 2 on the peripheral surface in the thickness direction of the layer. However, since the stamp material 1 is manufactured by punching with a heated Thomson-type punching die, the lower layer warps due to the pressure of the blade during punching. As a result, a gap is formed between the side surfaces of the lower layer and the intermediate layer, making it impossible to join the two layers by side surface fusion. In the manufacturing method, the problem is solved by temporarily fixing both layers with an adhesive before heat-sealing the side surfaces. Penetration may be hindered, and shading may occur on the imprint. In the case of the printed body 1a having a small surface area, this is a significant problem because the adhesive area is relatively large.

In the case of the stamp manufacturing method of the present invention, in the step of forming the side heat-sealed portion 2, both side surfaces of the printed body 1a and the ink occluding body 1c are sandwiched and heat-sealed, so an adhesive for temporary fixing is used. There is no need to use it, so no shading of the impression can occur. Furthermore, in the manufacturing method of the present invention, the heat-sealed portion 2 of the ink occluding body 1c and the printing surface 1b of the non-ink-impregnated printing body 1a can be sandwiched and heat-sealed together. Manufacturing can be performed without staining manufacturing equipment or the like with ink.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, the invention is not limited to the embodiments disclosed herein and is subject to the claims. It should be understood that the scope and the entirety of the specification can be modified within the range not contrary to the gist or idea of the invention, and that the stamp accompanying such modification is also included in the technical scope.

1 Imprint material 1a Print body 1b Print surface 1c Ink absorbing body 2 Heat seal part H Hot plate

Claims (3)

A stamp having a heat-sealed portion formed by heat-melting the side and bottom surfaces of a stamp material made of a porous material. 2. A stamp according to claim 1, wherein said stamp material comprises a printed body and an ink absorbing body laminated on the lower surface of said printed body. 3. The stamp according to claim 1, wherein an adhesive portion is provided in the heat-sealed portion of the lower surface of the stamp material.

Images