JP5732355B2 - Composite adhesive tape - Google Patents

Description

The present invention relates to a pressure-sensitive adhesive tape composite heel, in particular, it is a simple structure comprising a thin urethane material, a composite heel adhesive tape which can exhibit a moderate moisture retention and good adhesion or the like to the heel .

Conventionally, the adhesive tape for wrinkles has been provided with a water-containing pressure-sensitive adhesive layer impregnated with a soft component or a moisturizing component for the purpose of keratinization treatment or moisturizing on the surface of the wrinkles.
More specifically, as shown in FIG. 8, a water-containing pressure-sensitive adhesive layer (not shown) is formed on one surface of the support 102 having a predetermined shape having a plurality of vertices 106 a and notches 106, It is a skin patch 100 whose surface is covered with a facing (not shown), the gel strength of the water-containing pressure-sensitive adhesive layer is 5 mm ⁻¹ or more, and the bending stiffness of the facing is 20 to 150 mm. It is a skin patch 100 (see, for example, Patent Document 1).

  Further, as shown in FIG. 9, a sheet-like pack 200 for fitting to a heel of a foot to protect and improve the surface of the pack, an extensible adhesive sheet 203 from above to below, There has been proposed a sheet-like pack 200 in which a nonwoven fabric 201 having a shape, a plaster body 202, and a protective release sheet 204 are sequentially laminated (see, for example, Patent Document 2).

  In addition, as shown in FIG. 10, a sheet-like pack 300 that can be well adhered to a protruding portion such as a heel of a foot, the adhesive sheet 301 having a gel layer 301a from below to above, A sheet-like pack 300 including a medicinal sheet 302 having an active layer 302a containing medicinal ingredients has been proposed (see, for example, Patent Document 3).

On the other hand, even if it is a case where it walks in the state where it stuck without using a soft ingredient, a moisturizing ingredient, etc., a sticking material for wrinkles which exhibits a moisturizing effect stably is proposed (for example, patent documents 4). reference).
More specifically, as shown in FIGS. 11A to 11B, a moisture permeable film (moisture permeability: 2000 to 4000 g / (m ² · 24 Hrs)) 404 and a nonwoven fabric 405 are laminated on a support 402. And a base fabric 403 provided with a pressure-sensitive adhesive layer 406 covered with a release sheet 418.
And when the whole base fabric 403 is planarly viewed, it forms a substantially elliptical shape and forms a notch 409 extending inwardly from the outer edge side, and further 10% of the base fabric in the longitudinal direction. It is the adhesive material 401 for wrinkles in which the tensile stress is 1 to 3 N / 25 mm and the 10% tensile stress of the transverse base fabric is 35 to 55 N / 25 mm.
In other words, a predetermined bottom surface covering portion 413 and a back surface covering portion 414 are formed with the notch portion 409 as a boundary, and are attached to the ridge 415 so as to wrap as shown in FIG. It is.

JP 2000-109427 (Claims) JP2000-302640 (Claims) JP-A-2004-51518 (Claims) Utility Model Registration No. 3145046 (Claims)

However, the skin patches and the like disclosed in Patent Documents 1 to 3 are easily displaced or lost when the water-containing pressure-sensitive adhesive layer impregnated with a flexible component or a moisturizing component is pressed with an operation such as walking. Therefore, it has been difficult to stably maintain the moisturizing effect for a long time.
In addition, all of them were thick, and after sticking on a bag or the like, when viewed through stockings, socks, etc., there was a problem that they were conspicuous from the outside.

Moreover, the adhesive material for wrinkles disclosed in Patent Document 4 has a moisture permeable film, or the moisture permeability of a support containing such a moisture permeable film is excessively high. There was also a problem that it was thick and easily noticeable from the outside because it used a support laminated with non-woven fabric.
Furthermore, the adhesive patch disclosed in Patent Document 4 has a configuration in which a predetermined notch is formed to fit the shape of the collar, but between adults and children, or between men and women, We did not consider that the sizes were different, and there was still a problem that the fit was insufficient.
In addition, the adhesive patch disclosed in Patent Document 4 sets the value of the 10% tensile stress of the base fabric in the transverse direction to be considerably larger than that in the longitudinal direction while forming a predetermined notch. When peeling from the release sheet, it was difficult to deform and peel off, the manufacturing process was complicated, and further, the manufacturing cost was high and it was economically disadvantageous. .

Therefore, the present inventor combined a plurality of single adhesive tapes for a bag containing a base material and a silicone-based pressure-sensitive adhesive layer having a predetermined thickness and having a moisture permeability value limited to a predetermined range. The present invention has been completed by finding that an excellent moisturizing effect and the like can be obtained without using a moisturizing component and the like, and irrespective of the amount of sweating in the heel.
That is, the present invention is able to exert a good balance of good adhesion with moderate moisturizing properties against wrinkles even in a simple structure including a thin urethane base material, and is conspicuous when used. It is an object of the present invention to provide an adhesive tape for composite wrinkles that does not exist and a method for protecting wrinkles using such an adhesive tape for composite wrinkles.

According to the present invention, there is provided a composite bag adhesive tape comprising a plurality of single bag adhesive tapes comprising a urethane substrate and a silicone-based pressure-sensitive adhesive layer. The thickness of the urethane base material in the tape is set to a value within the range of 10 to 200 μm, the elongation (measured in accordance with JIS-L-1096, the same applies hereinafter) is set to a value of 150% or more, and a single product Provided is a composite adhesive adhesive tape characterized in that the moisture permeability (measured in accordance with JISZ0208, the same applies hereinafter) of the adhesive tape for straw is a value in the range of 300 to 750 g / (m ² · 24 Hrs), The problems described above can be solved.
More specifically, it is an adhesive tape for composite bag made of a plurality of single-piece adhesive tapes composed of a urethane base material and a silicone-based adhesive layer, and is a single-piece adhesive for paddles. The planar shape of the tape is circular or elliptical, the thickness of the urethane base material in the single adhesive tape for ridges is set to a value within the range of 10 to 200 μm, and the elongation is set to a value of 150% or more. The adhesive strength of the silicone-based pressure-sensitive adhesive layer in the pressure-sensitive adhesive tape is set to a value in the range of 300 to 2000 gf / 25 mm, and the moisture permeability of the single adhesive tape for bag is in the range of 300 to 750 g / (m ² · 24 Hrs ). It is set as the value of this.
In other words, the thickness and elongation of the urethane base in a single bag adhesive tape and the moisture permeability of the single bag adhesive tape are within the specified range, and a plurality of single bag adhesive tapes are combined. Even if it is a simple structure including a thin urethane base material, it fits easily regardless of the size of the wrinkle, and provides good adhesion while exhibiting appropriate moisture retention, and is used In this case, it is possible to obtain an adhesive tape for a composite bag that is not conspicuous from the outside.
Moreover, by making the planar shape of the single adhesive tape for punches into a circle or an ellipse, it can be more easily peeled off from the release sheet, and the manufacturing process including the cutting process can be simplified and shortened. .
Further, the adhesive strength of the silicone-based pressure-sensitive adhesive constituting the silicone-based pressure-sensitive adhesive layer in a single bag adhesive tape (measured in accordance with JISZ0237, hereinafter may be simply referred to as the adhesive strength of the composite adhesive tape). By setting the value within the predetermined range, it is possible to further reduce the possibility of peeling by an operation such as walking.
It has been found that the optimum range of moisture permeability of a single bag adhesive tape varies slightly depending on the amount of sweat in the bag. Nevertheless, according to the present invention, even if there is a difference in the amount of perspiration in wrinkles, it is possible to provide a composite wrinkle pressure-sensitive adhesive tape excellent in balance between appropriate moisture retention and good adhesion. it can.

Moreover, in composing the adhesive bag adhesive tape of the present invention, the single adhesive bag adhesive tape has an end part to be partially overlapped, and the width of the end part is in the range of 2 to 30 mm. It is preferable to set the value within the range.
By comprising in this way, regardless of the size of the heel in an adult and a child or a man and a woman, it can fit and surround and can exhibit moderate moisture retention etc.

Further, in composing the composite adhesive pressure-sensitive adhesive tape of the present invention, the urethane base material in the single-purpose adhesive adhesive tape is colored, and the blending of the colorant with respect to 100 parts by weight of the resin constituting the urethane base material The amount is preferably set to a value within the range of 0.01 to 10 parts by weight.
By comprising in this way, when using it, it can be set as the adhesive tape for composite bag which is not conspicuous from the outside through stockings, socks, etc.

Further, in constituting the composite adhesive pressure-sensitive adhesive tape of the present invention, a release sheet is affixed to the surface of the silicone pressure-sensitive adhesive layer in a single adhesive adhesive tape, and the release sheet is divided into three parts, and the left end portion. It is configured as a release sheet, a center release sheet, and a right end release sheet, and a part of the left end release sheet and the right end release sheet is folded, and a handle is thereby formed. preferable.
By comprising in this way, even if it is a simple structure containing a thin urethane base material, handling can be made still easier.

1A to 1C are a plan view, a rear view, and a cross-sectional view of a single bag adhesive tape in a composite bag adhesive tape. 2 (a) and 2 (b) are diagrams provided to explain a composite bag adhesive tape formed by combining single bag adhesive tapes. Drawing 3 is a figure offered in order to explain the use condition of the adhesive tape for composite bags. 4 (a) to 4 (c) are diagrams provided for explaining a modification including an end portion of the adhesive tape for scissors. FIG. 5 is a diagram provided for explaining the relationship between the moisture permeability of the tacky adhesive tape and the moisture retention and adhesion of the tack. Drawing 6 is a figure offered in order to explain a manufacturing method of an adhesive tape for ridges. FIGS. 7A to 7D are diagrams provided to explain a method for protecting a wrinkle using a composite wrinkle pressure-sensitive adhesive tape. FIG. 8 is a diagram for explaining a conventional skin patch. FIG. 9 is a diagram for explaining a conventional sheet pack (No. 1). FIG. 10 is a diagram for explaining a conventional sheet-shaped pack (No. 2). 11 (a) to 11 (c) are a plan view, a rear perspective view, and a diagram for explaining a use state of a conventional scissors patch.

[First Embodiment]
1st Embodiment is the adhesive tape for composite bags made by combining multiple single-piece adhesive tapes comprising a urethane base material and a silicone-based adhesive layer, The thickness of the urethane base material in the pressure-sensitive adhesive tape is set to a value in the range of 10 to 200 μm, the elongation is set to a value of 150% or more, and the moisture permeability of the single adhesive tape for bag is 300 to 750 g / (m ² · 24 Hrs), which is a pressure-sensitive adhesive tape for composite punches.
More specifically, it is an adhesive tape for composite bag made of a plurality of single-piece adhesive tapes composed of a urethane base material and a silicone-based adhesive layer, and is a single-piece adhesive for paddles. The planar shape of the tape is circular or elliptical, the thickness of the urethane base material in the single adhesive tape for ridges is set to a value within the range of 10 to 200 μm, and the elongation is set to a value of 150% or more. The adhesive strength of the silicone-based pressure-sensitive adhesive layer in the pressure-sensitive adhesive tape is set to a value in the range of 300 to 2000 gf / 25 mm, and the moisture permeability of the single adhesive tape for bag is in the range of 300 to 750 g / (m ² · 24 Hrs ). It is set as the value of this.
That is, as shown in FIGS. 2 (a) to 2 (b), a plurality of single bag adhesive tapes 10 shown in FIGS. As shown in FIG. 3, the adhesive tape 11 for composite bag is affixed to the bag 30.
Hereinafter, with reference to the drawings as appropriate, embodiments of the single-piece adhesive tape 10 shown in FIGS. 1 (a) to 1 (c) and the combination adhesive tape 11 formed by combining the same will be specifically described. .

1. Urethane base material (1) type As the type of urethane resin constituting the urethane base material 12 shown in FIG. 1 (a) and the like, there is basically a restriction as long as it is basically a condensation reaction product of a polyisocyanate compound and an alcohol compound. For example, a polyester urethane resin, a polyether urethane resin, a polycarbonate urethane resin, an epoxy urethane resin, etc. are mentioned.

  More specifically, as the polyisocyanate compound constituting the urethane resin, tetramethylene diisocyanate, hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, isophorone diisocyanate, 4,4′-methylenebis (cyclohexyl isocyanate), isophorone diisocyanate, xylylene diisocyanate, One kind alone or a combination of two or more kinds such as tolylene diisocyanate, diphenylmethane diisocyanate and polyphenylmethane diisocyanate can be mentioned.

  Moreover, as an alcohol compound which comprises a urethane resin, 1 type of single or 2 types or more combinations, such as polyester polyol, polyether polyol, polycarbonate polyol, polyacetal polyol, polyacrylate polyol, polyesteramide polyol, or polythioether polyol, are mentioned.

Furthermore, you may mix | blend a predetermined amount of polyamine type | system | group chain extenders as a component which comprises a urethane resin.
Examples of such polyamine chain extenders include ethylenediamine, 1,2-propanediamine, 1,6-hexamethylenediamine, piperazine, 2,5-dimethylpiperazine, isophoronediamine, 4,4′-dicyclohexylmethanediamine, 3 , 3′-dimethyl-4,4′-dicyclohexylmethanediamine, 1,4-cyclohexanediamine, diethylenetriamine, dipropylenetriamine, triethylenetetramine and the like, or a combination of two or more.

(2) Elongation rate Moreover, it is preferable to make the elongation rate (measurement based on JIS-L-1096) of a urethane base material into the value of 150% or more.
The reason for this is that when the elongation percentage of the urethane base material is a value of 150% or more, an excellent fit is obtained in the heel, and a predetermined moisture retention is easily obtained regardless of the amount of sweating.
However, when the elongation percentage of the urethane base material becomes excessively large, the mechanical strength may be remarkably reduced, or the types of urethane resins that can be used may be excessively limited.
Therefore, the elongation percentage of the urethane base material is more preferably set to a value within the range of 200 to 800%, and further preferably set to a value within the range of 300 to 600%.
However, normally, when using a thin urethane substrate having an elongation of 300% or more and a thickness of 20 μm or less, it can be easily applied to a predetermined location, and the urethane substrate is used. Therefore, it is preferable to laminate a reinforcing release member on the surface of the urethane base material because the adhesive tape for ridges can be easily manufactured.

(3) Thickness Further, the thickness of the urethane base material is set to a value within the range of 10 to 200 μm.
The reason for this is that when the thickness of the urethane substrate is less than 10 μm, the mechanical strength is lowered or it is difficult to adjust the moisture permeability value of the tacky adhesive tape.
On the other hand, when the thickness of the urethane substrate exceeds 200 μm, it is excessively thick and not only difficult to handle, but also conspicuous from the outside. This is because it may be easily peeled off from the skin or the like.
Accordingly, the thickness of the urethane base material is more preferably set to a value within the range of 20 to 100 μm, and further preferably set to a value within the range of 30 to 50 μm.

(4) Shape Further, the planar shape of the urethane base material 12 is not particularly limited. For example, as shown in FIG. Alternatively, as an elliptical modification, a modified octagon is preferable.
The reason for this is that, by adopting such a planar shape, it can be attached to the heel and fitted, and can be easily peeled off when peeling the adhesive tape for heel from the release sheet. is there.
Moreover, it is because a manufacturing process including a cutting process can be simplified, shortened, and yield can be improved by adopting such a planar shape.
Furthermore, if it is such a planar shape, as shown to FIG. 2 (a)-(b), without providing the edge part mentioned later, several single-piece adhesive tapes 10a-10b for ridges are piled up, and it is predetermined. This is because the overlapping portions 16, 16a and 16b can be formed.
In addition, although the length of the overlapping parts 16, 16a, and 16b of FIG. 2 (a)-(b) is each represented by L1, L2, and L3, for example, the said length is a value within the range of 5-40 mm. It is preferable that

As for the shape of the urethane base material, it is preferable that end portions (overlapping portions) 16c, 16d, and 16e are provided on the side of the urethane base material 12 as shown in FIGS. .
For example, FIG. 4 (a) is an example in which an elongated end portion 16c is provided along the edge of an elliptical urethane base material. In order to adjust the humidity, the end portion 16c is provided with air permeation holes 16c ′ having a diameter of 0.01 to 1 mm at a rate of 3 to 20 holes / cm ² , for example.
FIG. 4B is an example in which long end portions 16 d are provided along two edges (upper and lower) of the substantially circular urethane base material 12. This is an example in which a notch 16d ′ is provided between the scale-shaped end portion 16d.
FIG. 4C is an example in which long end portions 16e are provided along the eight edges of the substantially deformed octagonal urethane base material 12. In this example, a cut 16f is provided between the end portions 16e.
That is, by providing the end portions 16c, 16d, and 16e protruding sideways in this way, it becomes easy to combine the single adhesive tapes for scissors using the end portions 16c, 16d, and 16e. is there.
Further, by providing such end portions 16c, 16d, and 16e, it is possible to reinforce the adhesive force to the heel and improve the ease of handling.
The shapes of the end portions 16c, 16d, and 16e are not particularly limited, but may be basically long as long as they are semicircular and elliptical along the edge of the urethane base material. It is preferably formed to be a part of various shapes such as a rectangle, a square, a triangle, and a wave shape.

(5) Coloring The urethane base material may be colorless and transparent, but is more preferably colored. More specifically, it is preferable that at least one of skin color, black, green, red, brown, blue, purple, yellow, vermilion, etc. is colored in consideration of the color tone of stockings and socks.
The reason for this is that by coloring in this way, the adhesive tape for composite bag can be made inconspicuous from the outside through stockings or socks when used.
And when coloring a urethane base material, the compounding quantity of coloring agents, such as a dye and a pigment, shall be the value within the range of 0.01-10 weight part with respect to 100 weight part of urethane resins which comprise a urethane base material. It is preferable.
The reason for this is that by such a configuration, good colorability can be obtained without impairing the mechanical properties including the elongation of the urethane base material.

(6) Water repellent treatment layer Although not shown, it is preferable to provide a water repellent treatment layer (including a sizing layer) on the surface of the urethane substrate.
The reason for this is that, even when wearing stockings, socks, etc., the surface of the urethane base material and interference (friction) with these are reduced, and the adhesive tape for composite bag is reduced. This is because it is possible to effectively prevent displacement and damage such as stockings and socks.
Further, by providing such a water repellent treatment layer, the amount of water vapor between the surface of the ridge and the composite heel adhesive tape can be adjusted, and peeling of the composite heel adhesive tape can be effectively prevented.
Furthermore, by providing such a water-repellent treatment layer, it is possible to easily prevent liquid from entering from the outside, which is preferable in a sanitary environment.
Such a water repellent treatment layer is preferably composed of, for example, a fluororesin or a silicone resin.

(7) Moisture permeability Although depending on the thickness (10 to 200 μm) of the urethane substrate, the moisture permeability of the urethane substrate measured in accordance with JISZ0208 is 300 to 900 g / (m ² · 24 Hrs). A value within the range is preferable.
The reason for this is that by controlling the moisture permeability of the urethane base material in this way, the moisture permeability of the bag adhesive tape itself is adjusted to a value within a predetermined range to control the moisture retention or peeling of the bag adhesive tape. This is because it can be effectively prevented.
In addition, by controlling the moisture permeability of the urethane base material in this way, it is easy to prevent permeation of liquid substances from the outside, which is preferable in a sanitary environment.
Therefore, the moisture permeability of the polyurethane substrate, 350～800G / is more preferably a value within the range of (m ² · 24Hrs), to a value within the range of 400~700g / (m ² · 24Hrs) Is more preferable.

(8) Identification mark and decoration layer Although not shown, it is preferable that an identification mark or a decoration layer is provided on the front surface or the back surface of the urethane base material.
The reason for this is that by providing number marks, kanji marks, pictogram marks, braille marks, etc., it is possible to easily select the desired sticky adhesive tape from a plurality of sticky adhesive tapes of different sizes and forms. This is because the usability of the adhesive tape for bag can be remarkably improved.
In addition, by providing a decorative layer that represents a number pattern, kanji pattern, pictogram pattern, photo pattern, etc. as such a decorative layer, not only the ease of use of the adhesive tape for bag is improved, but also the value of fashionability This is because it can be improved. For example, by using a decorative layer containing a fluorescent agent, it is possible to enhance nighttime recognition.

2. Type of pressure-sensitive adhesive layer (1) The type of silicone pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 13 shown in FIG. 1 (c) is not particularly limited, but the organopolysiloxane pressure-sensitive adhesive described below is used. It is preferable to use an agent.
That is, it is preferable to use an organopolysiloxane pressure sensitive adhesive as a main component in the silicone adhesive layer in the present invention.
The reason for this is that, by using an organopolysiloxane pressure-sensitive adhesive, it can exhibit moderate adhesion to the skin, while improving creep resistance, water resistance, and chemical resistance. It is because it can do.
A typical example of such an organopolysiloxane pressure-sensitive adhesive is obtained by, for example, blending a silicone resin having a structure represented by the general formula (1) or the general formula (2) and performing dehydration condensation. Organopolysiloxane and the like are preferable.

(In General Formula (1), R ¹ and R ² are each a methyl group or a phenyl group, and n is an integer of 10 to 10,000.)

(In general formula (2), m represents an integer of 10 to 10,000.)

In the general formula (1), R ¹ and R ² are each a methyl group or a phenyl group, but in order to impart heat resistance to the adhesive layer, the molar ratio of the methyl group to the phenyl group (methyl group) / Phenyl group) is preferably set to a value within the range of 25/75 to 98/2, and more preferably set to a value within the range of 85/15 to 95/5.
Furthermore, in the general formula (1) and the general formula (2), n and m are usually set so that the pressure-sensitive adhesive has a viscosity of 2000 to 200000 cP (in consideration of workability for forming an adhesive layer on the nonwoven fabric). It is preferable to adjust the numerical value so as to be 25 ° C.

(2) Crosslinking agent In order to impart thermosetting properties to the organopolysiloxane pressure-sensitive adhesive and to improve the adhesiveness at high temperatures, for example, an organic peroxide such as benzoyl peroxide or dicumyl peroxide or a platinum catalyst is used. It is preferable to add in an amount of 1.5 to 3% by weight based on the solid content of the organopolysiloxane pressure-sensitive adhesive.
In order to effectively exhibit the effect of addition, it is preferable to heat at a temperature of 120 ° C. or higher after adding an organic peroxide or a platinum catalyst.

(3) Additive In addition, a preparation (drug) can be added as a kind of additive in the pressure-sensitive adhesive composition so as to exhibit a predetermined medicinal effect.
The type of such a preparation is not particularly limited, but examples include anti-inflammatory drugs, anti-inflammatory analgesics, coronary vasodilators, asthma drugs, antihypertensive drugs, antihistamines, tranquilizers, antibiotics, anesthetics, One type of vitamin agent or the like, or a combination of two or more types may be mentioned.
Moreover, although the addition amount of a formulation changes with kinds of formulation and the use of an adhesive composition, it shall be set as the value within the range of 0.1-30 mass% with respect to the whole quantity of an adhesive composition, for example. Is preferred.

  Moreover, it is preferable to add various additives in an adhesive composition. Examples include antioxidants, viscosity modifiers, ultraviolet absorbers, masking agents, plasticizers, waxes, colorants, inorganic fillers, organic fillers, extenders, coupling agents and the like alone or in combination of two or more. .

(4) Adhesive strength Further, the adhesive strength of the silicone-based adhesive constituting the silicone-based adhesive layer in a single bag adhesive tape (T-mode peeling force measured according to JIS Z0237, adherend: stainless steel plate , Peeling rate: 300 mm / min) is preferably set to a value in the range of 300 to 2000 gf / 25 mm.
This is because when the adhesive strength is less than 300 gf / 25 mm, it easily peels off from the skin or the like, and may be inferior in function as an adhesive tape for composite wrinkles.
On the other hand, when the adhesive strength exceeds 2000 gf / 25 mm, it may be difficult to remove the adhesive from the skin, or the skin irritation may become excessively high, resulting in discomfort during use. Because.
Therefore, the silicone pressure-sensitive adhesive constituting the silicone pressure-sensitive adhesive layer in such a single bag adhesive tape (sometimes simply referred to as the adhesive force of the composite bag adhesive tape) is in the range of 500 to 1500 gf / 25 mm. More preferably, the value is more preferably 900 to 1200 gf / 25 mm.

3. Release sheet Moreover, as shown in FIG.1 (b)-(c), it is preferable that the release sheet is laminated on the surface of the silicone type adhesive layer in the adhesive tape for bags.
This is because by laminating such a release sheet, the pressure-sensitive adhesive layer is protected, and the handleability is improved even with a tacky adhesive tape containing a thin urethane substrate.
Here, the aspect of the release sheet is not particularly limited, but more specifically, as shown in FIGS. 1B to 1C, the release sheet 14 is divided into three parts, and the left end. Part release sheet 14b, center part release sheet 14a, and right end part release sheet 14c, and a part of the left end part release sheet 14b and the right end part release sheet 14c are respectively folded so that the handle is It is preferable that it is provided.
The reason for this is that by including the release sheet in this way, even a simple structure including a thin urethane substrate can be handled more easily.

4). Moisture permeability Further, the moisture permeability of the adhesive tape for scissors measured in accordance with JISZ0208 is set to a value in the range of 300 to 750 g / (m ² · 24 Hrs).
The reason for this is that by controlling the moisture permeability of the adhesive tape for wrinkles in this way, not only the amount of sweating in the wrinkles, but also the proper moisture retention can be obtained, and good adhesion can be obtained. This is because peeling of the adhesive tape can be effectively prevented.
More specifically, when the moisture permeability of the heel adhesive tape is less than 300 g / (m ² · 24 Hrs), it is caused by sweating from the heel surface between the heel surface and the heel adhesive tape. It is because water vapor | steam accumulates excessively and it becomes easy to peel the adhesive tape for bags.
On the other hand, if the moisture permeability of the adhesive tape for wrinkles exceeds 750 g / (m ² · 24 Hrs), the moisturizing property of the wrinkle surface becomes insufficient and keratinization may not be effectively prevented.
Therefore, it is more preferable that the moisture permeability of the adhesive tape for bag is a value within the range of 350 to 700 g / (m ² · 24 Hrs), and a value within the range of 400 to 600 g / (m ² · 24 Hrs). More preferably.

Here, with reference to FIG. 5, the relationship between the water vapor transmission rate of the adhesive tape for wrinkles, the moisture retention in a wrinkle, and the adhesiveness with respect to a wrinkle is demonstrated.
The characteristic curve A1 in the figure corresponds to the moisture retention data when the amount of sweating is relatively small (such as in winter), and the characteristic curve A2 is the moisture retention when the amount of sweating is relatively large (such as in summer). It corresponds to sex data.
That is, the horizontal axis of FIG. 5 shows the moisture permeability value of the adhesive tape for bag, and the left vertical axis shows the evaluation point (relative value) of moisture retention in the bottle. And, as shown in the evaluation criteria of Example 1, the evaluation point of moisturizing properties is calculated with ◎ as 5 points, ○ as 3 points, Δ as 1 point, and x as 0 point.
Therefore, as shown by the characteristic curves A1 and A2 in FIG. 5, when the moisture permeability value of the adhesive tape for bag is 400 g / (m ² · 24 Hrs) or less, the good moisture retention of evaluation point 5 is obtained. It is understood that each can be obtained.

On the other hand, when the amount of sweating is relatively small (in winter, etc.), when the moisture permeability value of the adhesive tape for heels rises to about 600 g / (m ² · 24 Hrs), as shown by the characteristic curve A1, moisture retention It is understood that when the value of the moisture permeability of the adhesive tape for scissors is about 800 g / (m ² · 24 Hrs), the evaluation point of moisture retention is significantly reduced to 0.
In addition, when the amount of sweating is relatively large (summer, etc.), when the moisture permeability value of the adhesive tape for heels increases and reaches about 800 g / (m ² · 24 Hrs), as shown by the characteristic curve A2, moisture retention It is understood that when the value of the moisture permeability of the adhesive tape for scissors is about 1000 g / (m ² · 24 Hrs), the evaluation point of moisture retention is significantly reduced to 0.
Therefore, regardless of the amount of sweating, by setting the moisture permeability of the adhesive tape for wrinkles to 600 g / (m ² · 24 Hrs) or less, it is possible to obtain a good moisture retention of 3 or more, similarly, By setting the moisture permeability to a predetermined value of 500 g / (m ² · 24 Hrs) or less, it is possible to obtain a good moisture retention of an evaluation score of 5 or more.

In addition, the right vertical axis of FIG. 5 shows the evaluation point (relative value) of the adhesiveness of the tacky adhesive tape, and shows the relationship with the moisture permeability of the tacky adhesive tape. Then, as shown in the evaluation criteria of Example 1, adhesion evaluation points were calculated with ◎ being 5 points, ○ being 3 points, Δ being 1 point, and × being 0 point.
The characteristic curve B1 in the figure corresponds to the adhesion data when the amount of sweating is relatively small (such as in winter), and the characteristic curve B2 is the adhesion when the amount of sweating is relatively large (such as in summer). It corresponds to sex data.
Therefore, as shown by the characteristic curves B1 and B2 in FIG. 5, when the moisture permeability value of the adhesive tape for scissors is 400 g / (m ² · 24 Hrs) or less, good adhesion of evaluation point 5 is obtained. It is understood that each can be obtained.
That is, as shown by the characteristic curve B1 in FIG. 5, even when the amount of perspiration is relatively small (winter etc.), the moisture permeability value of the adhesive tape for heels is less than 50 g / (m ² · 24 Hrs) The evaluation score for adhesion is 0.
When the moisture permeability value of the adhesive tape for heels is increased to about 200 g / (m ² · 24 Hrs), the evaluation score for adhesion is increased to 3, and the moisture permeability value of the adhesive tape for heels is 400 g. It is understood that the adhesion evaluation score is remarkably increased to 5 at about / (m ² · 24 Hrs).

On the other hand, when the amount of sweating is relatively large (summer, etc.), as shown by the characteristic curve B2, when the moisture permeability value of the adhesive tape for heels increases and becomes about 400 g / (m ² · 24 Hrs), the adhesion It is understood that when the value of the moisture permeability of the adhesive tape for scissors is about 450 g / (m ² · 24 Hrs), the evaluation score for adhesion is significantly increased to 5.
Therefore, regardless of the amount of perspiration, by setting the moisture permeability of the heel adhesive tape to 300 g / (m ² · 24 Hrs or more, an evaluation score of 1 or more can be obtained for the adhesion, respectively, By setting the moisture permeability to a predetermined value of 400 g / (m ² · 24 Hrs) or more, good adhesion with an evaluation score of 3 or more can be obtained.

As described above, according to the present invention, regardless of the amount of perspiration, by limiting the moisture permeability of the adhesive tape for wrinkles to a predetermined range, it is possible to obtain predetermined moisture retention and adhesion. , It can be used universally.
However, in the present invention, it is also preferable to prepare adhesive tapes for heels with different moisture permeability depending on the amount of sweating from the heels and to apply them respectively.
More specifically, when the amount of sweating is relatively large in summer or personally, the moisture permeability value of the heel adhesive tape is 400 to 800 g / (m ² · 24 Hrs) as the heel adhesive tape for high sweat. It is preferable to set the value within the range of 450 to 750 g / (m ² · 24 Hrs).
On the other hand, when the amount of sweating is relatively small in the winter or personally, the moisture permeability value of the adhesive tape for heels is in the range of 250 to 900 g / (m ² · 24 Hrs) as the adhesive tape for low sweating heels. It is preferable to set a value within the range of 300 to 800 g / (m ² · 24 Hrs).
In addition, since there is a fact that sweat is more likely to occur at the bottom of the heel, it is also preferable to apply a high-sweat heel adhesive tape to the bottom of the heel and a low-sweat heel adhesive tape to the top. It is an aspect.

5. Manufacturing method The manufacturing method of the adhesive tape for scissors is not particularly limited. For example, by the manufacturing apparatus 50 shown in FIG. 6, the silicone adhesive application step (A) and the urethane base material lamination step It is preferable to manufacture the adhesive tape 10 for scissors through (B), the peeling sheet laminating step (C), and the cutting step (D).
That is, the pressure-sensitive adhesive layer having a uniform thickness can be stably formed by transferring the silicone-based pressure-sensitive adhesive to the urethane base material without directly applying it to the urethane base material.

(1) Formation process of an adhesive layer The formation process of an adhesive layer is the silicone type adhesive layer 13 on the peeling process paper 52 supplied from the unwinding roll 53 of the peeling process paper, as shown in FIG. Is a step of forming.
In this case, the method for forming the silicone-based pressure-sensitive adhesive layer 13 is not particularly limited, but the pressure-sensitive adhesive composition is applied onto the substrate using, for example, a roll coater, comma coater, knife coater, or the like as the coating device 54. It can be easily manufactured by coating uniformly on the surface.
Further, depending on the type of the silicone-based pressure-sensitive adhesive composition, it is also preferable to perform heat treatment under certain conditions in order to scatter the solvent or to perform a crosslinking treatment.

(2) Lamination process of urethane base material (B)
Next, as shown in FIG. 6, the urethane base material laminating step (B) further laminates the urethane base material 12 on the pressure-sensitive adhesive layer 13 formed on the separation step paper 52, and the separation step. In this step, the paper 52 is removed from the adhesive layer 13.
In that case, the method of laminating the urethane base material 12 is not particularly limited, but as the laminating device 58, for example, a laminating device or a press roll can be used.
Further, it is preferable that the peeling process paper 52 is reversely peeled using the rotation support roll 55, and is recovered as the peeling process paper roll 60 and reused.

  Although not shown, when the elongation of the urethane base 12 is 150% or more and the thickness of the urethane base 12 is 10 to 30 μm, it can be easily attached to a predetermined place for handling. It is preferable that a reinforcing release member composed of a silicone release paper, a silicone release film, or the like is laminated in advance on the surface of the urethane base 12 because it can be selectively coated or manufactured easily.

(3) Lamination process of release sheet (C)
Next, the release sheet laminating step (C) is a step of further laminating the release sheet 14 on the pressure-sensitive adhesive layer 13 as shown in FIG. 6.
Also in this case, the method of laminating the release sheet 14 is not particularly limited, but as the laminating device 64, for example, a laminating device or a press roll can be used.
In addition, when laminating | stacking the peeling sheet 14 divided into 3 as shown to FIG.1 (b)-(c), unlike the lamination | stacking apparatus 64 shown in FIG. 6, another lamination | stacking apparatus will be used.

(4) Cutting step (D)
Next, in the cutting step (D), as shown in FIG. 6, the laminate in which the urethane base material 12 is laminated is cut into a predetermined shape by using a cutting jig 68 and its cradle 66, It is the process of setting it as the adhesive tape 10 for wrinkles.
In that case, as the cutting jig 68, a cutter, a knife, a laser, a cutting frame or the like can be used.

[ Second Reference Embodiment ]
A second reference embodiment is a wrinkle protection method using a composite wrinkle pressure-sensitive adhesive tape formed by combining a plurality of wrinkle pressure-sensitive adhesive tapes including a urethane base material and a silicone-based pressure-sensitive adhesive layer. The method for protecting wrinkles using the adhesive tape for composite wrinkles characterized by including the following steps (1) and (2).
(1) The thickness of the substrate is set to a value within the range of 10 to 200 μm, the elongation (measured according to JIS-L-1096) is set to a value of 150% or more, and the moisture permeability (measured according to JISZ0208) is set. Step of preparing a plurality of single bag adhesive tapes having a value within a range of 300 to 750 g / (m ² · 24 Hrs) (2) A single bag adhesive tape is applied to a predetermined place of the bag and then applied The process of sticking another single bag adhesive tape so as to partially overlap the end of the adhesive tape for use In the following, the contents described in the first embodiment will be omitted as appropriate, and FIG. As shown in d), the adhesive tape 10 for scissors according to the second reference embodiment (divided into three parts, comprising a left end part release sheet 14b, a center part release sheet 14a, and a right end part release sheet 14c)踵 保 using (with) To explain the specific contents of the way.

1. Step of applying single adhesive bag adhesive tape (1) Release process of central release sheet First, the release process of the central release sheet is performed after preparing single adhesive adhesive tape 10 as shown in FIG. 7 (a). As shown in FIG. 7B, after peeling the central part release sheet 14a to expose the silicone pressure-sensitive adhesive layer 13 located in the central part, aligning and sticking to a predetermined place on the heel It is.
Therefore, even if the urethane base material 12 is thin, in this state, the left end part release sheet 14b and the right end part release sheet 14c are attached. While being able to align, the center part of the adhesive tape 10 for wrinkles can be stuck correctly and rapidly.

(2) Peeling process of left edge part peeling sheet Next, the peeling process of a left edge part peeling sheet is aligned with the predetermined place of the bag, and the left edge part from the adhesive tape 10 for a bag in a state of being partially attached to the bag. This is a step of peeling the release sheet 14b.
In this case, even if the urethane substrate 12 is thin, the silicone pressure-sensitive adhesive layer 13 located at the center is adhered to a part of the ridge while the right end portion release sheet 14c is attached. Using the silicone pressure-sensitive adhesive layer 13 on the left side of the pressure-sensitive adhesive tape 10, the left side of the bag adhesive tape 10 can be applied accurately and quickly.

(3) Peeling process of right edge part peeling sheet Next, the peeling process of a right edge part peeling sheet is aligned with the predetermined place of a wrinkle, and the right edge part from the adhesive tape 10 for wrinkles partially attached to the wrinkle This is a step of peeling the release sheet 14c.
Even in this case, even if the urethane base material 12 is thin, the silicone pressure-sensitive adhesive layer 13 in the center part and the right side part sticks to the wrinkles. The right part of the adhesive tape 10 for scissors, and thus the whole, can be applied accurately and quickly.

2. As described above, in the same manner as the single adhesive bag adhesive tape, as described above, the central release sheet 14a and the left edge release are also applied to the separate adhesive bag adhesive tape 10 as described above. The sheet 14b and the right end part peeling sheet 14c can be peeled in order, and can be affixed to a predetermined place of the bag so as to partially overlap the edge of the single bag adhesive tape.
That is, a single bag adhesive tape 10 and another single bag adhesive tape 10 can be combined and applied to a predetermined position of the bag as a composite bag adhesive tape 11.

  Hereinafter, the present invention will be described in more detail with reference to examples.

[Example 1]
1. Manufacture of adhesive tape for scissors A silicone adhesive layer having a thickness of 15 μm was formed on a release member by uniformly applying a silicone adhesive using a roll coater.
Next, on the formed silicone pressure-sensitive adhesive layer, the thickness is 30 μm, the elongation measured according to JIS-L-1096 is 200%, and the moisture permeability measured according to JISZ0208 is 400 g / ( m ² · 24 Hrs) urethane substrate was further laminated.
Subsequently, the laminate in a state where the urethane base material was laminated using a cutting jig was cut into a predetermined shape to obtain a single adhesive tape for scissors.

2. Evaluation of adhesive tape for bag (1) Moisture permeability (Evaluation 1)
The moisture permeability of the obtained single adhesive tape for bag was measured according to JISZ0208 and evaluated according to the following criteria.
A: The moisture permeability is a value within the range of 400 to 600 g / (m ² · 24 Hrs).
○: a value in the range of moisture permeability 300~400g / (m ² · 24Hrs) less than the value of the range ^{or,, 600g / (m 2 ·} 24Hrs) Ultra ^{~750g / (m 2 · 24Hrs)} .
△: a value in the range of less than moisture permeability ^{100~300g / (m 2 · 24Hrs)} , or a value of 750g / (m ² · 24Hrs) Ultra ^{~1000g / (m 2 · 24Hrs)} .
X: Moisture permeability is a value less than 100 g / (m ² · 24 Hrs) or a value exceeding 1000 g / (m ² · 24 Hrs).

(2) Moisturizing property (Evaluation 2)
A plurality of the obtained single adhesive tapes for heels were combined (overlapping length: 10 mm) and affixed to a monitor heel as a composite heel adhesive tape, and the moisture retention of the heel adhesive tape was evaluated according to the following criteria. .
A: After 24 hours, the keratinized portion on the heel surface is healed.
○: After 24 hours, the keratinized part on the heel surface is almost healed.
Δ: After 24 hours, the keratinized portion on the heel surface is slightly healed.
X: After 24 hours, the keratinized portion on the heel surface is hardly healed.

(3) Adhesion (Evaluation 3)
A plurality of the obtained single adhesive tapes for heels were combined (overlapping length: 10 mm) and affixed to a monitor heel as a composite heel adhesive tape, and the adhesion of the heel adhesive tape was evaluated according to the following criteria. .
A: No peeling phenomenon is observed after 24 hours.
○: No peeling phenomenon is observed after 12 hours.
Δ: After 2 hours, no peeling phenomenon is observed.
X: Peeling phenomenon is observed after 2 hours.

(4) Visibility (Evaluation 4)
Combining a plurality of the obtained single adhesive tapes for heels (overlapping length: 10 mm), sticking them on the monitor heels as a composite heel adhesive tape, and then wearing skin-colored stockings. The visibility of the adhesive tape for use was evaluated.
A: The composite tape adhesive tape cannot be recognized at all.
○: Almost no adhesive tape for composite bag can be recognized.
(Triangle | delta): The composite tape adhesive tape can be recognized a little.
X: The adhesive tape for composite bags can be recognized remarkably.

[Examples 2 to 6]
In Examples 2-6, as shown in Table 1, the thickness of the urethane base material, the elongation rate, and the moisture permeability of the composite padding adhesive tape were changed, as in Example 1, for composite paddles. An adhesive tape was manufactured and evaluated.
That is, in Example 2, a composite adhesive pressure-sensitive adhesive tape was produced and evaluated in the same manner as in Example 1 except that the thickness of the urethane base material was changed from 30 μm to 50 μm.
Moreover, in Example 3, the adhesive tape for composite scissors was manufactured and evaluated like Example 1 except the thickness of the urethane base material having been changed from 30 μm to 20 μm.

Moreover, in Example 4, the adhesive material for composite bag is similar to Example 1 except that the urethane material constituting the urethane base material is changed and the elongation is increased from 200% to 500%. Manufactured and evaluated.
Further, in Example 5, the urethane material constituting the urethane base material is changed, and the moisture permeability of the adhesive tape for composite bag is reduced from 400 g / (m ² · 24 Hrs) to 200 g / (m ² · 24 Hrs). A composite adhesive pressure-sensitive adhesive tape was produced and evaluated in the same manner as Example 1 except for the above.
Further, in Example 6, a urethane substrate was provided with a passage hole, and the moisture permeability of the composite adhesive pressure-sensitive adhesive tape was increased from 400 g / (m ² · 24 Hrs) to 500 g / (m ² · 24 Hrs). In the same manner as in Example 1, an adhesive tape for composite bag was manufactured and evaluated.

[Comparative Examples 1-5]
In Comparative Examples 1 to 5, as shown in Table 1, the thickness of the urethane base material, the elongation rate, and the moisture permeability of the composite adhesive pressure-sensitive adhesive tape were set to values outside the scope of the present invention. In the same manner as in No. 1, a composite adhesive pressure-sensitive adhesive tape was produced and evaluated.
That is, in Comparative Example 1, a composite adhesive pressure-sensitive adhesive tape was produced and evaluated in the same manner as in Example 1 except that the thickness of the urethane base material was changed from 30 μm to 200 μm.
In Comparative Example 2, an adhesive tape for composite bag was produced and evaluated in the same manner as in Example 1 except that the thickness of the urethane base material was changed from 30 μm to 7 μm.

Moreover, in Comparative Example 3, a composite adhesive pressure-sensitive adhesive tape was produced in the same manner as in Example 1 except that the urethane material constituting the urethane base material was changed and the elongation was reduced from 200% to 80%. And evaluated.
Moreover, in the comparative example 4, the urethane material which comprises a urethane base material was changed, and the water vapor transmission rate of the adhesive tape for bags was reduced from 400 g / (m < ² > * 24Hrs) to 50 g / (m < ² > * 24Hrs). Except for the above, in the same manner as in Example 1, a composite adhesive pressure-sensitive adhesive tape was produced and evaluated.
Further, in Comparative Example 5, except that holes were provided in the urethane base material and the moisture permeability of the adhesive tape for scissors was increased from 400 g / (m ² · 24 Hrs) to 1000 g / (m ² · 24 Hrs), In the same manner as in Example 1, a composite adhesive pressure-sensitive adhesive tape was produced and evaluated.

According to the composite bag adhesive tape of the present invention, the thickness and elongation of the urethane substrate in the single bag adhesive tape, and the moisture permeability of the single bag adhesive tape are values within a predetermined range. By combining multiple adhesive tapes for silkworms, even a simple structure that includes a thin urethane base material can be easily fitted regardless of the size of the bottles and exhibit appropriate moisture retention over a long period of time. I was able to do it.
Moreover, according to the wrinkle protection method using the adhesive tape for composite wrinkles of the present invention, it is possible to provide an adhesive tape for composite wrinkles that is inconspicuous when used.
Therefore, not only can the keratinization of the heel be effectively prevented, but even when a woman or the like wears colorful stockings or socks, a very good feeling of use can be obtained without conspicuous from the outside. .

10, 10a to 10f: Single product adhesive tape 11, 11 ': Composite adhesive tape 12: Urethane substrate 13: Silicone adhesive layers 14, 14a, 14b, 14c: Release sheets 16, 16a, 16b: Overlapping portion 16c, 16d, 16e: end portion 16c ': vent 16d', 16f: notch 30: ridge 50: tack adhesive tape manufacturing device 52: peeling process paper 53: peeling process paper unwinding roll 54: Coating roll 55: Rotating support roll 56: Urethane base unwinding roll 58: Urethane base laminating roll 62: Release sheet unwinding roll 64: Release sheet laminating roll 66: Cutting device receiver 68: Cutting device

Claims (5)

A composite bag adhesive tape comprising a combination of a plurality of single-piece adhesive tapes comprising a urethane base material and a silicone-based adhesive layer,
The planar shape of the single adhesive tape for bag is circular or elliptical,
The thickness of the urethane base material in the single adhesive tape for bag is set to a value within the range of 10 to 200 μm, and the elongation is set to a value of 150% or more.
The adhesive strength of the silicone-based pressure-sensitive adhesive layer in the single bag adhesive tape is a value within the range of 300 to 2000 gf / 25 mm,
And,
A single adhesive bag adhesive tape having a moisture permeability of 300 to 750 g / (m ² · 24 Hrs).   The single-piece adhesive tape for scissors has an end part to be partially overlapped, and the width of the end part is set to a value within a range of 2 to 30 mm. The composite adhesive adhesive tape described. The urethane base material in the single adhesive tape for bag is colored, and the blending amount of the colorant is within the range of 0.01 to 10 parts by weight with respect to 100 parts by weight of the resin constituting the urethane base material. It is set as a value, The adhesive tape for composite bags of Claim 1 or 2 characterized by the above-mentioned. A release sheet is affixed to the surface of the silicone-based pressure-sensitive adhesive layer, and the release sheet is divided into three parts, and is configured as a left end part release sheet, a center part release sheet, and another right end part release sheet, A part of the left end part release sheet and the right end part release sheet is respectively folded, and a handle is formed thereby , the adhesive for composite scissors according to any one of claims 1 to 3 tape. The water repellent treatment layer is provided in the surface of the urethane base material in the said single-piece bag adhesive tape , The composite bag adhesive tape as described in any one of Claims 1-4 characterized by the above-mentioned.

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