JP2010149441A - Liquid applicator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid applicator which can continuously coat a specified amount of a coating fluid, and also can coat it without imparting stress to a surface to be coated. <P>SOLUTION: The liquid applicator sucks a coating fluid from a coating fluid-packed part by capillary attraction using a porous material having continuous pores formed inside, and applies the coating fluid by using an application part having fillings planted in the surface of the porous material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid applicator useful as a cosmetic, a writing instrument, and a drug application.

The liquid applicator includes a dip type (for example, Patent Document 1) in which a coating liquid in a bottle is included in an application unit provided in a cap of the bottle and applied to the skin or the like.
However, since these dip-type liquid applicators have a small amount of coating liquid that can be contained in the coating part, it is necessary to include the coating liquid in the coating part many times during use. It was.
In addition, it is difficult to adjust the amount of coating liquid to be included in the coating part, and it is difficult to apply an appropriate amount because it contains more coating liquid than necessary. It was.

On the other hand, there is an applicator (for example, Patent Document 2) capable of sucking a coating liquid filled in a batting inside the body with a capillary force and applying a predetermined amount to a dip type liquid applicator.
However, since the applicator is the same as the fibrous body that sucks up the coating liquid filled in the batting and the like, the fibrous body designed to suck up a certain amount of the coating liquid filled in the batting, If it is hard and has a rough surface, it may cause pain or damage when applied to delicate parts such as the skin.
In addition, for the purpose of applying to delicate parts such as skin, even when the fiber body is designed to be as soft and smooth as possible by combining a thin fiber and a soft resin binder, the fibers on the surface of the application part are resin. Since it was bound by the binder, it did not reach the point of eliminating the feeling of roughness on the skin.
Japanese Patent No. 2754045 JP 2006-198047 A

  An object of this invention is to provide the liquid applicator which can apply | coat a fixed amount of coating liquid continuously, and can apply | coat, without giving excessive stress to the surface to apply | coat.

  The invention according to claim 1 of the present invention is a porous body having continuous pores therein, and the coating liquid is sucked up by a capillary force from the coating liquid filling section, and the coating section on which the flocking is applied on the surface of the porous body. A liquid applicator characterized by applying a coating liquid.

  The invention described in claim 2 is the liquid applicator according to claim 1, wherein the porous body is a fibrous body.

  According to a third aspect of the present invention, in the liquid applicator according to the second aspect, the fibrous body is a nylon fibrous body or a PET fibrous body.

  According to the present invention, it is possible to continuously apply a certain amount of the coating liquid sucked up by the capillary force from the coating liquid filling portion, and to apply without applying excessive stress to the surface to be applied. An applicator can be provided.

  In addition, since the pile of the hair-applied application part enters a fine part of the surface to be applied, it is possible to apply the coating liquid not only when the surface to be applied is a flat surface but also with an uneven surface Tools can also be provided.

  In addition, since the pile of the planted application part is entangled with fibers such as hair, eyelashes, and eyebrows, a liquid applicator that can efficiently apply the coating liquid even when it is fibrous is also provided can do.

  Furthermore, in order to reduce the friction and catching between the surface of the application part where the flock is applied and the surface to which the pile is applied, a smooth application feeling is obtained, and printing is possible even if the characters printed by an ink jet printer are overwritten. It is also possible to provide a liquid applicator that does not bleed easily.

  In addition, by adjusting the application pressure, it becomes possible to adjust the amount of coating liquid to be applied to the surface to be applied. Especially when the application pressure is reduced, a liquid applicator that can express the level of hair, such as eyebrows Can also be provided.

  In addition, since the planted application part holds a lot of coating liquid, it is difficult for the application part to dry out when the cap is removed, and it is possible to supply a large amount of coating liquid to the application surface. A simple liquid applicator can also be provided.

  The present invention will be specifically described below.

  The porous body having continuous pores in the present invention is, for example, a fiber bundle such as wool, acrylic fiber, nylon fiber, PET fiber is heated through a forming die and formed into a required cross-sectional shape and size, Next, after immersing in a resin binder solution, drying and primary curing with a drying device, further passing through a heating device and curing the resin to obtain a rod-like body, then cut to a specified length, This is obtained by a manufacturing method for obtaining a liquid applicator by polishing the front end and the rear end, and other known manufacturing methods.

  As described above, the fiber bundle may be bound by immersing the fiber bundle in a resin binder solution as described above, or by mixing the fiber bundle with a synthetic fiber having a low melting point, heating, and binding by heat sealing. You may wear it.

  Examples of the resin binder liquid to be used include urea resin, polyurethane resin, and melamine resin.

  The flocking on the surface of the porous body in the present invention refers to, for example, a method in which a pile is planted on the surface of a porous body to which an adhesive has been applied in advance using an electrostatic attraction force in a high-voltage electrostatic field. It is obtained by electrostatic flocking, which is a processing method for fixing a pile planted by heating and curing, and other known flocking methods.

  The pile to be planted on the surface of the porous body is, for example, natural fibers such as cotton, silk, wool, hemp, synthetic fibers such as polyester, nylon, vinylon, polyacetal, polyurethane, acrylic, aramid, semi-synthetic fibers such as acetate, Examples thereof include regenerated fibers such as rayon, cupra, and polynosic, and fibers having a fiber diameter of 0.55 to 66 dtex and a fiber length of 0.3 to 5 mm, such as polyethylene, polypropylene, polystyrene, and polyvinyl chloride.

  The adhesive used for flocking to the surface of the porous body is, for example, an acrylic ester resin emulsion adhesive, an acrylic ester-vinyl acetate copolymer emulsion adhesive, a polyvinyl acetate emulsion adhesive, or a polyurethane resin. Emulsion adhesive, polyester emulsion adhesive, epoxy resin emulsion adhesive, ethylene-vinyl acetate copolymer (EVA) adhesive, styrene butadiene rubber (SBR) latex adhesive, nitrile rubber (NBR) latex Examples thereof include an adhesive, a polyurethane resin solvent-based adhesive, and an epoxy resin solvent-based adhesive. Of these, acrylic is preferred because of the ease of penetration of the coating liquid into the coated surface.

  Embodiments of the present invention will be described based on examples.

FIG. 1 illustrates an embodiment of the liquid applicator according to the present invention. A sliver of 12 g / m of gelen made of polyester fiber with a single yarn of 2.2 dtex is provided at 223 ° C. having a 6 mmφ through hole. And passed through a molding die heated to be compressed and densified to obtain a fiber bundle of 6 mmφ. Then, it was immersed in a resin binder liquid (concentration = 5%) containing polyisocyanate and polyester polyol, and the resin binder liquid was dried and cured to obtain a rod-shaped body. Then, it cut | disconnected to the designated length, the front-end | tip and the rear end were grind | polished, and the shell-shaped porous body was obtained.
Thereafter, an acrylic resin which is an adhesive for electrostatic flocking is applied to the surface of the application portion of the porous body, and a nylon pile having a length of 0.9 dtex and a length of 0.8 mm is electrostatically flocked to obtain a liquid applicator. Got.

  FIG. 2 exemplifies one mode of use of the liquid applicator of the present invention. The liquid applicator of the present invention is assembled using a holder in a body having a coating liquid filling portion such as batting inside. It is a thing.

  FIG. 3 illustrates another embodiment of the liquid applicator according to the present invention, in which a round bar-like porous body is polished into a brush shape and then planted on the surface of the application part. .

  FIG. 4 illustrates another embodiment of the liquid applicator according to the present invention, in which a round rod-like porous body is polished into a chisel shape and then planted on the surface of the application portion. .

  FIG. 5 illustrates another embodiment of the liquid applicator according to the present invention, in which a round bar-like porous body is polished into a nail shape and then planted on the surface of the application part. .

  FIG. 6 illustrates another embodiment of the liquid applicator according to the present invention, in which both ends of a rectangular rod-like porous body are polished into a chisel shape, and then, the hair can be implanted on the surface of the application portion. It is.

  FIG. 7 illustrates another embodiment of the liquid applicator of the present invention, in which a round bar-like porous body having a hollow portion is polished into a nail shape, and then can be implanted on the surface of the application portion. It is a thing.

  FIG. 8 illustrates another embodiment of the liquid applicator according to the present invention, in which the tip of the round rod-like porous body is polished into a spherical shape, and the rear end is polished into a substantially conical shape. The outer peripheral portion of the porous body is polished to provide a shank portion, and the surface of the coated portion can be planted.

  FIG. 9 illustrates another embodiment of the liquid applicator according to the present invention, in which both ends of a flat plate-like porous body are polished into a chisel shape, and then are implanted into a part of the surface of the application portion. It is obtained.

  As mentioned above, although the Example of this invention was described, this invention is not limited to these embodiment at all.

  For example, a porous body having continuous pores inside is a three-dimensional network structure having continuous pores that communicate with each other, and has thermoplasticity with moderate flexibility while retaining shape as an applicator. Sintering may be made of a product (polyolefin-based foam), and each granular particle made of thermoplastic resin is partially fused to each other, and continuous continuous pores are formed between the granular particles. A porous body molded by a method may be used, or a fine powdery inorganic compound that is dissolved with an acid is mixed with a thermoplastic resin, and the inorganic compound is eluted with an acid after molding. Alternatively, the porous body may be formed by an elution method in which pores are formed.

  The applicator may have a round bar shape, a square bar shape, or any other appropriate shape, and the application surface portion of the applicator may have any known shape such as a brush shape, a nail shape, or a chisel shape.

  Further, as shown in FIG. 8, it may be processed into a stepped shape having a shank portion in accordance with a holder to which the liquid applicator is assembled. A groove may be provided, or a vertical groove effective for air replacement or the like may be provided.

  Furthermore, the surface of the applicator may be coated with a polyacetal resin or the like, and the color of the pile to be planted, the porous body, or the coated portion may be set to various colors according to the color of the coating liquid and the intended use. .

  In addition, the surface of the porous body on which the pile is flocked may be preliminarily treated with a primer to increase the adhesive force.

  The pile shape may be any of known shapes such as a bending type (bending type), a linear type, and a curled type.

  In addition, by expanding the range in which the pile on the surface of the porous body is flocked, not only a coating liquid such as a fragrance such as a perfume or a deodorant may be applied, but also a function of diffusing may be provided.

  The liquid applicator of the present invention is useful for cosmetic purposes, for example, eyeliner, eyeshadow, eyebrow, hair dye marker, teak, lip liner, lip gloss, concealer, nail polish remover, nail care, skin care, whitening, makeup remover. Suitable for tooth cleaning, eyelash care, perfume pen.

  For example, it is also useful for writing instruments, and is particularly suitable for marking pens such as oil markers, board markers, line markers, paint markers, aqueous markers, medical markers, and plastic model markers.

  Furthermore, it is also useful, for example, for drug application, and is particularly suitable for application of fragrances, deodorants, insect repellents, liquid ship agents, sunscreens, sun oils, acne remedies and the like.

One form of liquid applicator One form of using liquid applicator One form of liquid applicator One form of liquid applicator One form of liquid applicator One form of liquid applicator One form of liquid applicator One form of liquid applicator One form of liquid applicator

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid applicator 2 Application | coating part 3 Holder 4 Body 5 Shank part

Claims (3)

  Liquid application characterized by sucking the coating liquid by capillary force from a coating liquid filling part with a porous body having continuous pores inside and applying the coating liquid at the application part where the surface of the porous body is implanted Ingredients.   The liquid applicator according to claim 1, wherein the porous body is a synthetic fiber body.   The liquid applicator according to claim 2, wherein the synthetic fiber body is a nylon fiber body or a PET fiber body.