JP2013079463A - Shoestring loosening-preventive spray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shoestring-loosening preventive spray which can prevent a shoestring knot from loosening when wearing shoes.SOLUTION: A spray stock solution in which a water soluble, a viscous resin allowing stickiness retention in a shoestring without solidifying after jetting and a solvent are mixed is filled in a spray container. It is suitable that the mixing amount of the viscous resin in the above spray stock solution is 10-50 mass% and the rest is a solvent. In addition, it is suitable that the stickiness of the spray stock solution has a ball number of 3 or more in an inclined ball tack test (JIS Z0237, at a tilt angle of 30 degrees, 23°C and a humidity of 71%).

Description

  [Technical Field] The present invention relates to a shoelace unwinding prevention spray capable of preventing unraveling of a shoelace knot during use of a shoe.

  Conventionally, in children's shoes, sports shoes, work shoes, etc., a type with a shoelace is often used, but it is dangerous if the knot of the shoelace is unwound during use. In addition, there is a problem that it is troublesome to reconnect the shoelaces that have been untied, and it is difficult for small children to reconnect their shoelaces themselves.

  Therefore, the knot has been prevented from unraveling as a braided lace structure so that the frictional resistance of the shoelace itself is large and difficult to slip, but in the case of exercise or work where a large force acts, it is surely effective in preventing unraveling. It was difficult to get. In addition, as shown in Patent Document 1, a stopper member that is attached to a portion of a shoelace that is tied with a butterfly so that the knot is not broken has also been proposed. In this case, the stopper member is attached and detached. There is a problem that the work is troublesome and the stopper member must always be carried around, which is troublesome.

  Therefore, there is a demand for the development of a new technology that can prevent unraveling of shoelace knots easily and reliably and maintain the effect over a long period of time with a new idea different from the conventional technology. It was.

JP 2005-218813 A

  As a result of earnest research focusing on the fact that the frictional force increases remarkably when sticking a viscous resin to the surface of the shoelace, the present inventor sprays a specific viscous resin on the knot of the shoelace with a spray. It has been found that the shoelace knot can be prevented from unraveling for a long time by a simple processing operation, and the shoelace unraveling spray of the present invention has been completed.

  The spray for preventing unraveling of shoelaces of the present invention made to solve the above problems is a mixture of a water-soluble viscous resin and a solvent that can keep the shoelaces sticky without being hardened after spraying. The spray undiluted solution is filled in a spray container.

  The amount of the viscous resin in the spray stock solution is preferably 10 to 50% by mass, and the balance is a solvent, and this is the invention according to claim 2.

  It is preferable to add polyhydric alcohol for maintaining the adhesiveness of the viscous resin to the spray stock solution in the range of 1 to 10% by mass, and this is the invention according to claim 3.

  The viscous resin is preferably one or more selected from nonionic, cationic or amphoteric acrylic resins, vinyl resins, and urethane resins, and this is the invention according to claim 4. And

  Further, the adhesiveness of the spray stock solution is preferably a ball number of 3 or more in an inclined ball tack test (JIS Z0237, inclination angle 30 degrees, 23 ° C., humidity 71%), and this is the invention according to claim 5. And

  Moreover, it is preferable that the spray stock solution and the propellant are filled in a mass ratio of 1: 1 to 1: 7 to form an aerosol, and this is the invention according to claim 6.

  In the invention according to claim 1, since the spray stock solution in which the water-soluble viscous resin and the solvent capable of maintaining the adhesiveness of the shoelace without being hardened after injection is mixed in the spray container, The viscous resin sprayed on the surface of the shoelace will exhibit an adhesive force without hardening and prevent the knot of the shoelace from being unwound.

  Moreover, in the invention which concerns on Claim 2, since the compounding quantity of the viscous resin in a spray undiluted | stock is 10-50 mass%, and the remainder shall consist of a solvent, viscous resin can be injected uniformly. . In addition, there is no stickiness, and the effect of preventing unraveling of shoelaces can be exhibited.

  Moreover, in the invention which concerns on Claim 3, since the polyhydric alcohol for maintaining the adhesiveness of viscous resin was added in the range of 1-10 mass% to a spray undiluted | stock solution, the unraveling of a shoelace is prevented over a long time. The effect can be demonstrated.

  Further, in the invention according to claim 4, the viscous resin is one or more selected from nonionic, cationic or amphoteric acrylic resins, vinyl resins, and urethane resins. There is no feeling and there is no problem in food hygiene, so there is no effect even if you put your hand touching the resin in your mouth or touching food, and it can be washed off immediately by washing with water, so it demonstrates excellent usability be able to.

  Further, in the invention according to claim 5, the adhesiveness of the spray stock solution is large because the ball number is 3 or more in the inclined ball tack test (JIS Z0237, inclination angle 30 degrees, 23 ° C., humidity 71%). It will prevent the unraveling of the shoelace knot by exerting the adhesive force.

  Further, in the invention according to claim 6, since the spray stock solution and the propellant are filled in a mass ratio of 1: 1 to 1: 7 to form an aerosol, the viscous resin is made uniform. It can be sprayed on the surface and is also excellent in usability.

It is the schematic which shows the apparatus for a ball tack test.

Hereinafter, preferred embodiments of the present invention will be described.
The spray for preventing unraveling of shoelaces according to the present invention comprises a spray stock solution in which a water-soluble viscous resin and a solvent capable of maintaining adhesiveness in shoelaces without being hardened after spraying are mixed in a spray container. It is characterized by being filled.
The spray as used in the present invention is a finger type spray in which a spray stock solution is sprayed by a finger pressing force, an aerosol spray in which the spray stock solution is filled with a propellant and dispersed in the air, etc. Any type of spray may be used, but aerosol spray is preferred because of the uniformity of spraying and ease of use.

The blending amount of the viscous resin component in the spray stock solution is preferably 10 to 50% by mass, and the balance is the solvent (50 to 90% by mass).
Focusing on the fact that this viscous resin can significantly increase the frictional force when attached to the surface of a shoelace, this was used to complete a spray that can prevent unraveling of the shoelace knot for a long time. . If the viscous resin is less than 10% by mass, sufficient tackiness to prevent unraveling of the shoelace cannot be obtained, and if it is more than 50% by mass, a sticky feeling is caused and handling properties are deteriorated. In the range of 10 to 50% by mass.

The viscous resin is one or two or more selected from nonionic, cationic or amphoteric acrylic resins, vinyl resins, and urethane resins, and nonionic acrylic resins are particularly preferable. This viscous resin has no problem in terms of food hygiene, and there is no effect even if the hand touching the resin is put in the mouth or touching food, and it can be washed off immediately by washing with water, so it exhibits excellent usability .
In addition, the specific example of viscous resin is mentioned later.

  Moreover, it is also preferable to add the polyhydric alcohol for maintaining the adhesiveness of viscous resin in the range of 1-10 mass% to a spray stock solution. Examples of the polyhydric alcohol include glycerin and 1,3-BG. If the polyhydric alcohol is less than 1% by mass, it is difficult to sufficiently maintain the tackiness of the viscous resin, and if it exceeds 10% by mass, the uniform dispersion of the spray stock solution may be impaired.

  The balance is a solvent such as ethanol. When a polyhydric alcohol is added, the content of the solvent is in the range of 40 to 89% by mass. In addition, it is needless to say that a fragrance, a colorant and the like may be appropriately added as necessary.

The stickiness of the spray stock solution is preferably a ball number of 3 or more in an inclined ball tack test (JIS Z0237, inclination angle 30 degrees, 23 ° C., humidity 71%). More preferably, it is 4 or more.
In the present invention, in order to exhibit the effect of preventing unraveling of the shoelace, it is necessary that the film formed by spraying the spray expresses adhesiveness and has predetermined adhesiveness. Therefore, in the present invention, the adhesiveness is specified by a ball tack test according to JIS Z 0237 (inclination angle 30 degrees, 23 ° C., humidity 71%).

  The ball tack test is an adhesive test method for measuring using a measuring apparatus as shown in FIG. Specifically, a 100 mm pressure-sensitive adhesive surface coated with a sample to be measured (adhesive substance) is provided on the inclined surface of the measuring apparatus in FIG. 1, and a runway covered with a 100 mm non-sticky sheet is provided on the upper surface. When a steel ball (ball) divided into 31 different sizes from about 0.08 mm to 25.4 mm is rolled from the top of the runway, the maximum of the balls stopped at any position on the adhesive surface It is a method of specifying the adhesiveness by the number of the ball of the size.

  In the present invention, the adhesiveness of the spray stock solution has a ball number of 3 or more in an inclined ball tack test (JIS Z0237, inclination angle 30 °, 23 ° C., humidity 71%), and exhibits an effect of preventing unraveling of shoelaces. In this range, the tackiness in this range is preferable. More preferably, it is 6 or more. In addition, since a sticky feeling will arise when a ball number is larger than 31, it is unpreferable, and the range of 6-9 is especially preferable.

Below, the specific example of viscous resin is shown.
Acrylic and vinyl resins:
As anionic ones, alkyl acrylate / diacetone acrylamide copolymer (plus size L-53P, plus size L-9909B, plus size L-9948B etc. (all manufactured by Kyodo Chemical Co., Ltd.)), alkyl acrylate・ Octylacrylamide copolymer (Dermacryl 79 (made by NSC Japan)), polyethylene glycol / polypropylene glycol-25 / dimethicone / acrylates copolymer (rubyflex SILK (made by BASF)), acrylic acid / acrylic acid amide・ Ethyl acrylate copolymer (Ultra Hold 8, Ultra Hold Strong (manufactured by BASF)), Alkyl acrylate copolymer (Aniset NF-1000, Aniset HS-3000, etc. (Osaka Organic Chemical Industry Co., Ltd.) Co., Ltd.)), polyvinyl butyral (Denka Butyral (manufactured by Denki Kagaku Kogyo Co., Ltd.)), polyvinyl acetate (Denkasacanol (manufactured by Denki Kagaku Kogyo Co., Ltd.)) and the like.

Amphoteric resin:
Acrylic acid octylamide / hydroxypropylpropyl acrylate / butylaminoethyl methacrylate copolymer (AMPHOMER SH30, AMPHOMER LV-71 (manufactured by NSC Japan)), methacryloyloxyethylcarboxybetaine / alkyl methacrylate copolymer ( Yuka Former R205, Yuka Former 301, Yuka Former SM, Yuka Former 104D, etc. (Mitsubishi Chemical Corporation), RAM Resin-1000, RAM Resin-2000, RAM Resin-3000, RAM Resin-4000 (Osaka Organic Chemical Industries, Ltd.)), Dimethyldiallylammonium chloride / acrylic acid copolymer (Marcote 280, Marcote 295 (Nalco)), Dimethyldiallylammonium chloride / acrylamide Acrylic acid copolymer (mer coat plus 3330, Ma coat plus 3331 (Nalco Corp.)), and the like.

Cationic resin:
Vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer diethyl sulfate (HC Polymer 1S (M), HC Polymer 2 (Osaka Organic Chemical Co., Ltd.), Guff Coat 755N (ISP)), Vinylpyrrolidone / dimethylaminopropyl methacrylamide / lauryl dimethylaminopropyl methacrylamide copolymer (Stylee W-20 (manufactured by ISP)), vinylpyrrolidone / N, N-dimethylaminoethyl methacrylate / alkyl acrylate / triacrylate Propylene glycol copolymer (Coscut GA467, Koscut GA468 (Osaka Organic Chemical Co., Ltd.), polydimethylmethylenepiperidinium chloride (Mercoat 100 (Nalco)), dimethyldiallylammonium chloride / acrylamide copolymer Body (manufactured Merquat 550 (Nalco)), there is a chloride trimethylaminopropyl acrylamide dimethylacrylamide copolymer.

Nonionic resin:
Polyvinylpyrrolidone (rubiscol K17, rubiscol K30, rubiscol K90 (manufactured by BASF), PVP K (manufactured by ISP)), vinylpyrrolidone / vinyl acetate copolymer (PVP / VA S-630, PVP / VA E-) 735, PVP / VA E-335 (above ISP), Rubiscor VA73W, Rubiscol 37E (above BASF), PVA-6450 (Osaka Organic Chemical Co., Ltd.)), vinyl methyl ether / alkyl maleate Copolymer (Gantrez A-425, Gantrez ES-225, Gantrez ES-335, etc. (manufactured by ISP)), vinylpyrrolidone / methacrylamide / vinylimidazole copolymer (ruby set clear (manufactured by BASF)), polyvinyl caprolactam (Lubiscole Plus (BAS F) and vinyl caprolactam / vinyl pyrrolidone / dimethylaminoethyl methacrylate copolymer (ADVANTAGE LC-A (manufactured by IPS Japan Ltd.)).

Urethane resin:
Yodosol PUD (manufactured by NSC Japan), Ruby Set P.I. U. R. Polymers described in Japanese Patent Application No. 2006-183144, Dynax (manufactured by NSC Japan, Inc.) as acrylic-urethane systems, such as polymers described in (BASF) and JP-A-2006-213706.

Polysaccharide resin:
Gum arabic, glucan, succinoglycan, carrageenan, caraya gum, tragacanth gum, guar gum, locust bean gum, galactomannan gum, xanthan gum, starch, carob gum, quince seed (malmello), casein, dextrin, gelatin, sodium pectate, sodium alginate , Methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, crystalline cellulose, chlorinated O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose, O- [2-hydroxy-3- (trimethyl) chloride Ammonio) propyl] guar gum, chloride O- [2-hydroxy-3- (trimethylammonio) propyl] locustobi Gum, there is a chloride Hidorokishipuropirutorimoniumu starch.

The spray stock solution formulated as described above can be filled in a finger type spray and directly sprayed, but can also be mixed with a propellant to form an aerosol. In the case of aerosol, there is an advantage that a thin and uniform film can be formed, and that operability and storage properties are excellent.
As the propellant, liquefied gas such as dimethyl ether (DME) or petroleum liquefied gas (LPG) and compressed gas such as nitrogen, carbon dioxide gas, nitrogen oxide gas, compressed air, etc. are used, and one or two of these propellants are used. The above can be selected and used.

  The spray stock solution and the propellant are filled in a mass ratio of 1: 1 to 1: 7 to form an aerosol. If the propellant is less than 1: 1 (ie, less than 50% by mass) relative to the spray stock solution, the spray stock solution may not be sprayed to the end, and the viscous resin after spraying may not be dried. This is because there is a possibility that it is sufficient and sticky, whereas when it is more than 1: 7 (that is, more than 87.5% by mass), the spray stock solution becomes relatively small and sufficient viscosity cannot be exhibited. Considering the drying property and cost property of the spray-coated film, a range of 1: 3 to 1: 5 is preferable.

As described above, the resin film formed by the spray according to the present invention has a long adhesive property because the viscous resin does not solidify after the solvent ethanol or the propellant dimethyl ether evaporates. It is possible to prevent the knot of the shoelace from being unwound over time. In addition, the viscous resin used in the present invention has no stickiness, and there is no problem in food hygiene, so there is no effect even if you put your hand touching the resin in your mouth or touch food, Because it can be washed off immediately by washing with water, it demonstrates excellent usability.
In addition, although spray was demonstrated in the above description, a stock solution can be apply | coated or solid paste-like can also be apply | coated.

A spray stock solution consisting of 45% by mass of nonionic acrylic resin dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate copolymer and 55% by mass of ethanol as a solvent is prepared as a water-soluble viscous resin. did. This spray stock solution was filled into a finger type spray, a film was formed with this spray, and the tackiness was measured by an inclined ball tack test (JIS Z0237, inclination angle 30 °, 23 ° C., humidity 71%). As a result, the ball number was 8.
Moreover, 5 mass% of glycerol was added to the said spray stock solution as a polyhydric alcohol, and the spray stock solution made ethanol 50 mass% as a solvent was created. As a result of measuring the adhesiveness in the same manner as described above using this spray stock solution, the ball number was 6.

  Furthermore, the above-mentioned viscous resin 30% by mass, polyhydric alcohol 5% by mass, and the remaining spray (65% by mass) as the solvent and the propellant (DME) at 1: 5 (mass ratio). As a result of producing a filled aerosol, forming a film with this aerosol, and similarly performing an inclined ball tack test, the ball number was 4.

The spray undiluted solution was sprayed by finger type spray on the knot of the shoelace of the land-use shoe to form a film. Moreover, the film was similarly formed by spraying with the aerosol.
In any of the above-described spray treatments, it was confirmed that an adhesive film was formed on the knot of the shoelace and effectively prevented the shoelace from being unwound. It was also confirmed that the shoelace lace-preventing effect lasted all day. Also, this film was not sticky and there was nothing wrong with handling the shoes. Furthermore, it was confirmed that this film could be easily washed away with water.

Claims (6)

  Prevention of unraveling of shoelaces, characterized by filling a spray container with a spray stock solution mixed with a water-soluble viscous resin and a solvent that can keep the shoelaces sticky without being hardened after spraying For spray.   The spray for preventing unraveling of shoelaces according to claim 1, wherein the blending amount of the viscous resin in the spray stock solution is 10 to 50% by mass and the balance is a solvent.   The spray for preventing unraveling of shoelaces according to claim 2, wherein a polyhydric alcohol for maintaining the adhesiveness of the viscous resin is added to the spray stock solution in an amount of 1 to 10% by mass.   The shoelace according to any one of claims 1 to 3, wherein the viscous resin is one or more selected from nonionic, cationic or amphoteric acrylic resins, vinyl resins, and urethane resins. Spray for preventing unraveling.   5. The shoelace according to claim 1, wherein the adhesiveness of the spray stock solution has a ball number of 3 or more in an inclined ball tack test (JIS Z0237, inclination angle 30 °, 23 ° C., humidity 71%). Prevention spray.   The spray for preventing unraveling of shoelaces according to any one of claims 1 to 5, wherein the spray stock solution and the propellant are filled in a mass ratio of 1: 1 to 1: 7 to constitute an aerosol.

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