JPH0785722B2 - Fastener - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener used for detachably joining various members.

[0002]

2. Description of the Related Art Heretofore, so-called adhesive tapes, surface fasteners and the like have been known as those having such a function. That is, the pressure-sensitive adhesive tape has a pressure-sensitive adhesive layer formed on one surface of the tape-shaped substrate and a release layer formed on the other surface thereof, and is used for joining various members. Surface fasteners are a large number of projections made of a synthetic resin with a special shape on each surface of a pair of base materials fixed to the members to be joined. The members can be joined to each other by engaging and engaging the protrusions of the material with each other.

[0003]

However, when the adhesive tape is peeled off, the adhesive strength of the adhesive is rapidly deteriorated, so that the adhesive tape cannot be detached and used many times. However, since a part of the adhesive migrates to the pasted surface, there is a problem that dirt easily adheres to the pasted surface. In addition, when it is used by sticking it to a cardboard or the like, when it is peeled off, the surface paper layer of the cardboard or the like adheres to the pressure-sensitive adhesive layer and peels off, which often makes it impossible to use it again.

On the other hand, the hook-and-loop fastener can withstand a large number of times of attachment and detachment, but its structure is complicated and it is difficult to reduce the wall thickness.
Therefore, when used for clothing, it is inevitable.

An object of the present invention is to eliminate such a problem.

[0006]

The present invention takes the following means in order to achieve such an object. That is, the fastener according to the present invention is characterized in that one of the members to be joined is provided with a smooth surface, and the other is provided with a foamed resin layer having adhesiveness and elasticity and having exposed bubbles on its outer surface. To do.

As another embodiment, it is possible that both members to be joined are provided with a foamed resin layer having adhesiveness and elasticity and having bubbles exposed on the outer surface thereof.

In a preferred embodiment, the foamed resin layer is formed on the front surface of the base material, the pressure-sensitive adhesive layer is formed on the back surface, and the base material should be bonded via the pressure-sensitive adhesive layer. It should be attached to a member, or a smooth surface forming layer should be provided on the surface of the base material, and a pressure sensitive adhesive layer should be formed on the back surface, and the base material should be bonded via the adhesive. It is possible to cite one configured so that it can be attached to one of the members.

In still another embodiment, a foamed resin layer is formed on one end side of the surface of the base material, and a pressure sensitive adhesive layer is formed on the other end side of the surface, and the base material is formed into the pressure sensitive adhesive layer. It is also conceivable that the structure is such that it can be attached to a member to be joined via.

Further, when it is desired to use it as a binding cord, it is preferable that a deformable long base material is provided with a foamed resin layer having adhesiveness and elasticity and having air bubbles exposed on its outer surface. desirable. In that case, the foamed resin layers may be viscous / adsorbed to complete the bundling, but the long base material may be provided with a smooth surface forming layer for adhering / adsorbing the foamed resin layers. Good.

As a fastener that can be preferably used for closing the opening of a cardboard, a pair of separating elements attached to one surface of the members to be joined which are adjacent to each other in a butt position, and between these separating elements. A detachable bridged integral element is provided, and at least one of the joint surfaces of the separating element and the integral element is provided with a foamed resin layer having adhesiveness and elasticity and having exposed bubbles on its outer surface. You can list things. As a specific mode in that case, a pair of narrow tape-shaped separation elements are mutually viscously adsorbed in parallel to each other on one surface of the tape-shaped integrated element at predetermined intervals. Some include a pressure sensitive adhesive layer for attachment of the element to a corresponding member. It is convenient to use such a fastener by forming a peeling layer on the other surface of the integrated element, and temporarily bonding the pressure-sensitive adhesive layers of both the separating elements to the peeling layer and winding the roll in a roll shape. It is preferable above.

As a suitable material for forming the foamed resin layer having tackiness and elasticity, a foamed acrylic ester resin or urethane resin can be mentioned. Polyvinylidene chloride can be cited as a material having a smooth surface that strongly adheres and adsorbs to such a foamed resin layer and has good releasability.

[0013]

When the foamed resin layer is pressed against the smooth surface, the thickness of the foamed resin layer is temporarily reduced by elasticity, and a part of the air in the bubbles is eliminated. When the pressing force is released in that state,
The foamed resin layer thickens due to elasticity, and the inside of the bubbles becomes a negative pressure, so that the surface of the foamed resin layer is adsorbed to the outer surface of the smooth backing layer. Therefore, it is possible to join the member having the foamed resin layer and the member having the smooth surface. Since such joining is based on the suction cup action, it can be peeled off and rejoined any number of times. In this case, since the migration of the adhesive agent does not occur at all, dirt does not adhere to the peeled surface. In addition, since the foamed resin layer utilizes the adsorption effect of microscopic bubbles, it can be thinned and does not become bulky because it is sufficient to provide the foamed resin layer or the smooth surface on the other end of the joint.

When the foamed resin layer is formed of acrylic acid ester resin or urethane resin, since the adhesive force is added to the suction force, reliable joining is possible. Further, when the smooth surface is made of polyvinylidene chloride, the smooth surface also becomes tacky, so that a stronger bond is possible. Acrylic ester resin or urethane resin foam resin layer and polyvinylidene chloride smooth surface forming layer
When adsorbed, a large joining force is exerted especially against an external force in the shearing direction, but if the end portion is gripped and peeled off, it can be detached relatively easily, so that the detachability is not impaired.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

The fastener A shown in FIGS. 1 and 2 is applied to, for example, the waistline portion of a diaper or other clothing, and the foamed resin layer 1 is formed on the inner surface of one end a of the waistline portion which is a member to be joined. In addition to the above, the smooth surface forming layer 2 is provided on the outer surface of the other end b of the waist part which is a member to be joined. More specifically, the foamed resin layer 1 is made by foaming acrylic ester resin or urethane resin, and has a large number of closed cells 11 and communicating cells 12 inside thereof, and those bubbles are also present on the surface 1a thereof. 11 and 12 are partly shown. The foamed resin layer 1 is formed on one surface of a deformable substrate 3 made of a non-woven fabric or the like via a soft synthetic resin layer 4 and has a thickness of 0, 3-1.
A diameter of about 0 mm is sufficient. A pressure-sensitive adhesive layer 5 is formed on the other surface of the base material 3, and the base material 3 is attached to the one end a via the pressure-sensitive adhesive layer 5. In the initial stage before sticking, a release paper (not shown) is stuck on the surface of the pressure-sensitive adhesive layer 5, and the release paper is peeled off so that it can be stuck to the one end a or the like. You can also On the other hand, the smooth surface forming layer 2 for forming the smooth surface 2a is made of polyvinylidene chloride, and is a deformable substrate 6
It is formed on one surface. A pressure sensitive adhesive layer 8 is formed on the other surface of the base material 6, and the base material 6 is attached to the other end portion b via the pressure sensitive adhesive layer 8. In the initial stage before sticking, a release paper (not shown) should be stuck on the surface of the pressure-sensitive adhesive layer 8, and the release paper should be peeled off and stuck to the other end b. You can also

With such a structure, if the foamed resin layer 1 is pressed against the smooth surface 2a after the one end portion a is polymerized on the other end portion b, the thickness of the foamed resin layer 1 is reduced. Due to elasticity, it contracts temporarily and a part of the air in the bubbles 11, 12 is eliminated. When the pressing force is released in this state, the foamed resin layer 1 is elastically thickened and the inside of the bubbles 11, 12 becomes a negative pressure, and the surface 1a of the foamed resin layer 1 is adsorbed on the smooth surface 2a. Therefore, one end portion a provided with the foamed resin layer 1
And the other end portion b provided with the smooth surface 2a can be joined. Since such joining is based on the suction cup action,
It can be peeled off and rejoined any number of times. In this case, the migration of the adhesive agent does not occur at all, so that the peeled surface is not contaminated with dirt. Moreover, since the foamed resin layer 1 utilizes the adsorption effect of microscopic bubbles, it can be thinned, and it is sufficient to provide the thin smooth surface forming layer 2 on the other end of the joining. Therefore, it is not bulky and can be used comfortably without giving a rugged feeling even when applied to clothing or the like. Needless to say, such a fastener A can be applied not only to clothing but also to various opening / closing sections for polymerization.

In the fastener B shown in FIG. 3, contrary to the above-mentioned embodiment, a smooth surface forming layer 2 for forming a smooth surface 2a is provided on one end a to be overlaid, and the foamed resin layer 1 is provided on the other end b. The same or corresponding parts as those shown in FIG. 2 are provided with the same reference numerals and the description thereof will be omitted.

The fastener C shown in FIG. 4 is provided with the foamed resin layer 1 on both the one end a and the other end b, which is the same as or corresponding to that shown in FIG. 2, contrary to the above embodiment. The same reference numerals are given to the parts and the description thereof will be omitted.

The fastener D shown in FIGS. 5 and 6 has a foamed resin layer 101 formed on one end side of the surface of a base material 103 similar to that described above and a pressure-sensitive adhesive layer 105 formed on the other end side of the surface. The base material 103 is attached to one member a to be joined via the pressure sensitive adhesive layer 105. Further, the other member b to be joined has a smooth surface forming layer 102 on the surface.
1 having a pressure-sensitive adhesive layer 108 formed on the back surface thereof
06 is attached. Then, the member b having the smooth surface 102a is polymerized on the member a having the foamed resin layer 101, and the foamed resin layer 101 is adhered to the smooth surface 102a.
Both members a and b are detachably joined by suction.

The fastener E shown in FIGS. 7 to 10 is a member to be joined adjacent to each other in a butt posture, for example, a cardboard box d.
Of the lids e and f of the pair of separating elements Em, and an integrating element En that is detachably bridged between these separating elements Em. A foamed resin layer 2 having adhesiveness and elasticity on at least one of the joint surfaces with En and having air bubbles exposed on the outer surface thereof
01 is provided. Specifically, the integration element En is as shown in FIG.
As shown in, kraft paper, cellophane, acrylic resin,
The foamed resin layer 201 is provided on one surface of a tape-shaped substrate 203 made of polyester resin or the like, and the soft synthetic resin layer 2
04, and a release layer 209 having releasability is formed on the other surface. Each separating element Em is a narrow tape-shaped base material 20 made of the same material as the base material 203.
6, a smooth surface forming layer 202 made of polyvinylidene chloride
And a pressure sensitive adhesive layer 208 is formed on the other surface. In the initial form of the fastener E, as shown in FIG. 7, the pressure-sensitive adhesive layer 208 of both separating elements Em is temporarily adhered to the peeling layer 209 of the integrating element En and is wound in a roll shape.

When the lids e and f of the cardboard d are closed by using this fastener E, first, as shown in FIG. Stick on top of f. At this time, the abutting portions of the lids e and f are made to correspond to the gap s formed between the two separation elements Em, one separation element Em is attached to one lid e, and the other separation element Em is attached. Stick on the other lid f. As a result, both lids e and f are held in a closed state, but when it is desired to open these lids e and f, the integration element En is separated from both separation elements Em as shown in FIG. The integrated element En and each of the separation elements Em include a foamed resin layer 201,
Since it is bonded to the smooth surface forming layer 202 by viscous / adhesive force, it is possible to bridge the separation elements Em again to close the lids e and f. That is, it can be repeatedly used many times. Although the drawing shows the case where the integrated element is provided with the foamed resin layer and the separation element is provided with the smooth surface, the integration element is provided with the smoothed surface and each separation element is provided with the foamed resin layer, or A foamed resin layer may be provided on both of the separating elements. When such a fastener is used in a cardboard, it is needless to say that it can be used for joining parts other than the lid, and can be variously applied in addition to the cardboard.

The present invention is not limited to the above-described embodiments, and for example, a foamed resin having adhesiveness and elasticity on one surface of a deformable long base material and bubbles exposed on the outer surface thereof. The layer may be formed and a smooth surface forming layer may be provided on the other surface to be used as a binding cord. This can be suitably used, for example, in the case where wires and cables are bundled and supported by a hanger provided inside a common groove or the like. In such a case, after the fastener is wound around the hanger and the cable a plurality of times, the foamed resin layer at one end of the fastener is detachably attached to the smooth surface at the other end of the fastener. Use by adsorbing.

Besides, various modifications can be made without departing from the spirit of the present invention.

[0025]

Since the present invention is constructed as described above,
It can be used by repeatedly putting on and taking off, and
Since the thickness can be reduced, a fastener that can be used without trouble even in a place where bulkiness is a problem can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing an enlarged fastener of the embodiment.

FIG. 3 is a partial cross-sectional view corresponding to FIG. 2 showing another embodiment of the present invention.

FIG. 4 is a partially enlarged sectional view corresponding to FIG. 2 showing still another embodiment of the present invention.

FIG. 5 is a perspective view showing still another embodiment of the present invention.

FIG. 6 is a vertical sectional view showing the embodiment.

FIG. 7 is a perspective view showing still another embodiment of the present invention.

8 is a cross-sectional view taken along line XX in FIG.

FIG. 9 is a perspective view showing a usage state of the embodiment.

FIG. 10 is a transverse cross-sectional view corresponding to FIG. 8 showing a usage state of the embodiment.

[Explanation of symbols]

 A ... Fastener B ... Fastener C ... Fastener 1 ... Foamed resin layer 1a ... Surface 2 ... Smooth surface forming layer 2a ... Smooth surface 3 ... Base material 5 ... Pressure-sensitive adhesive layer 6 ... Base material 8 ... Pressure-sensitive adhesive layer D ... Fastener 101 ... Foamed resin layer 102 ... Smooth surface forming layer 102a ... Smooth surface 103 ... Base material 105 ... Pressure-sensitive adhesive layer 106 ... Base material 108 ... Pressure-sensitive adhesive layer E ... Fastener Em ... Separation element En ... Integration element 201 ... Foamed resin layer 202 ... Smooth surface forming layer 203 ... Base material 206 ... Base material 209 ... Release layer

Claims (12)

[Claims] 1. A fastener characterized in that one of the members to be joined is provided with a smooth surface, and the other is provided with a foamed resin layer having adhesiveness and elasticity and having exposed bubbles on its outer surface. 2. A fastener characterized in that a foamed resin layer having adhesiveness and elasticity and having exposed bubbles is provided on both members to be joined. 3. A foamed resin layer is formed on the front surface of a base material, and a pressure-sensitive adhesive layer is formed on the back surface, and the base material is attached to a member to be bonded via the pressure-sensitive adhesive layer. The fastener according to claim 1 or 2, wherein the fastener is configured to be obtained. 4. A smooth surface forming layer is provided on the surface of a base material, a pressure sensitive adhesive layer is formed on the back surface, and the base material can be attached to one of the members to be bonded via the adhesive. The fastener according to claim 1, wherein the fastener is configured as described above. 5. A foamed resin layer is formed on one end side of the base material, and a pressure sensitive adhesive layer is formed on the other end side of the surface, and the base material should be bonded via the pressure sensitive adhesive layer. The device according to claim 1 or 2, characterized in that it can be attached to a member.
Described fastener. 6. A fastener characterized in that a deformable elongated base material is provided with a foamed resin layer having adhesiveness and elasticity and having bubbles exposed on the outer surface thereof. 7. The fastener according to claim 6, wherein the long base material is provided with a smooth surface forming layer for sticking and adsorbing the foamed resin layer. 8. A pair of separating elements, each of which is attached to one surface of a member to be joined adjacent to each other in a butt position, and an integral element detachably bridged between these separating elements. A fastener characterized in that a foamed resin layer having adhesiveness and elasticity and having bubbles exposed is provided on at least one of the joining surfaces of the separating element and the integrating element. 9. A member in which a pair of narrow tape-shaped separating elements are made to stick and adsorb on one surface of a tape-shaped integrating element in parallel with each other at a predetermined interval, and each separating element corresponds. The fastener according to claim 8, further comprising a pressure-sensitive adhesive layer for sticking to the. 10. A release layer is formed on the other surface of the integrated element, and the pressure-sensitive adhesive layers of both separation elements are temporarily adhered to the release layer and wound in a roll shape. Item 9
Described fastener. 11. The foamed resin layer is formed by foaming an acrylic acid ester resin or a urethane resin, and the foamed resin layer is characterized in that: Described fastener. 12. The smooth surface is made of polyvinylidene chloride.
Described fastener.