JPH0521780U - Carpet connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] Has a re-peeling function that allows repeated fastening and peeling.
Further, a carpet connecting structure that does not stain the floor surface is provided. [Structure] Lock member 2 (4) for connecting carpet 3
And a locked member 4 (2) on the back surface of the carpet 3 are joined together to connect two or more adjacent carpets.
The lock member 2 or the locked member 4 is, for example, a microporous film having excellent viscoelasticity, or a member having excellent peelability and a smooth surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a carpet connecting structure. More specifically, the present invention relates to a simple carpet connecting structure that is removable and has excellent fastening properties, and does not damage the floor surface or be contaminated with adhesives or adhesives.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, carpets that are cut in various shapes to a certain size in advance and laid side by side on a floor surface, so-called tile carpets, are well known. That is, tile carpets of 50 cm square, 90 cm square, 120 cm square, and 180 cm square, such as square, rectangular, and rhombic tiles, have come to be used. Such tile carpets have the advantages that they are easy to transport, carry in and lay, they can be easily replaced locally, and that tile carpets of various colors can be combined to form a desired pattern. Because of this, it has been used a lot recently.

[0003]

[Problems to be solved by the device]

 The methods of laying tile carpets can be broadly classified into the laying method and the method of adhering to the floor. In other words, since the laying method is simply placed on the floor, it has the drawbacks of sliding or walking when walking, installing or moving furniture, etc., or it may be sucked up by an electric vacuum cleaner. There's a problem. On the other hand, as a method of adhering to the floor surface, a method of fixing the tile carpet to the floor surface with an adhesive or an adhesive, and attaching and fixing the tile carpet with a double-sided tape interposed between the tile carpet and the floor surface are used. There are ways to do it. This method has the drawbacks that the floor surface is contaminated with an adhesive, an adhesive, or a double-sided tape, and the tile carpet cannot be easily replaced.

On the other hand, as a way of using the carpet, it has become common to lay a carpet in the winter and remove it in the summer, to use a wooden floor, a P tile and the like as they are.

The object of the present invention is to eliminate the above-mentioned drawbacks of conventional carpets, and has a re-peeling function that enables repeated fastening and peeling, and further does not stain the floor surface. Is intended to be provided.

[0006]

[Means for Solving the Problems]

 The structure of the present invention that achieves the above object is characterized in that a lock member and a locked member provided on the back surface of the carpet are joined to the carpet connection to connect two or more adjacent carpets. This is a structure for connecting carpets.

That is, a feature of the present invention is that the back surface of the carpet is composed of a locked member in which a microporous film superior in viscoelasticity is adhered and laminated and a member having excellent peelability and a smooth surface. It is in the carpet connection structure.

Further, a sheet in which a member having excellent peelability and having a smooth surface is attached and laminated on the back surface of the carpet and a microporous film having the viscoelasticity is attached to the locking member is laminated. It is a structure for connecting carpets, which is characterized in that it is made of a material.

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

1 and 2 are schematic views showing an embodiment of a carpet connecting structure according to the present invention.

In the figure, 3 is a carpet, 1 is a floor, and 2 and 4 are locking members made of a microporous film or a surface smoothing member for connecting the carpets.

In FIG. 1, a viscoelastic microporous membrane 2 is stuck and laminated on at least a part of a floor ground contact surface of a carpet, while a lock member for connecting the carpet is excellent in peelability and has a surface. Is made of a smooth member 4.

In addition, contrary to the configuration of FIG. 1, FIG. 2 shows that the surface smoothing member 4 is stuck and laminated on at least a part of the floor ground contact surface of the carpet, while the lock member for connecting the carpet is viscoelastic. It is composed of a sheet-like material obtained by adhering and laminating the microporous membrane 2 having the.

That is, in the present invention, the surface smoothness is obtained by the synergistic effect of the viscoelasticity of the adhered and laminated microporous membrane and the sucker action by the open micropores constituting the microporous membrane. The effect of fastening to the member can be exhibited, and the carpet can be locked.

The microporous membrane of the present invention is preferably made of a resin composition such as polyurethane resin, SBR resin, NBR resin, silicone resin and PVC resin.

Further, the microporous membrane preferably has a dynamic elastic modulus (log ₁₀ E ′) in the rubber region of 9.0 dyne / cm ² or less. A resin having more than this property has a large Young's modulus and modulus and becomes hard.

On the other hand, it is preferable that the microporous membrane has a dynamic loss E ″ peak temperature of −50 to −10 ° C. and a loss normal (tan δ) peak value of 0.8 or less. If it exceeds 0.8, the microporous membrane made of this has a drawback that the pore structure is easily destroyed by compression.

On the other hand, the peak temperature of the dynamic loss E ″ is generally called a glass transition point, and is preferably −50 to −10 ° C. from the viewpoint of low temperature characteristics. The lower the peak temperature of E ″, the better. However, there is a relationship with heat resistance, and if it is too low, heat resistance will inevitably decrease, and problems will occur during practical use. On the other hand, if the temperature is -10 ° C or higher, the low temperature curability is generally increased, which is not preferable.

The viscoelastic property in the present invention was measured by the following method.

Using a Vibron tester (manufactured by Orientec Co., Ltd.) (110 cps), the sheet-shaped test piece was tested for dynamic elastic modulus (log ₁₀ E ′) and loss in the rubber region in the temperature range of −90 ° C. to 200 ° C. The peak temperature of the normal loss (tan δ) and the dynamic loss E ″ was measured. The microporous membrane of the present invention has a maximum diameter of 3 to 250 μm, preferably 20 to 100 μm. It is preferable that the microporous film has a large number of fine small holes penetrating from the front surface to the back surface.

In the present invention, a relatively large cavity communicating with the small holes exists inside the microporous membrane, and at least a part of the wall surface that separates the adjacent cavities. Those having the structural characteristic of having communicating holes are preferable.

Here, it is preferable that the small holes usually have an average straight diameter of 250 μm or less, for example, 100 μm or less, and the internal cavity has a diameter of 3.8 times or less the diameter of the small holes. Further, it is preferable that the shape of the pores is circular, elliptical, rectangular, or the like, and occupies 50% or more of all the fine pores.

The smaller the thickness of such a microporous membrane, the greater the flexibility, which is desirable. However, a material having a thickness of 0.1 mm or more is preferably selected from the viewpoint of adhesion to the floor surface. However, if the thickness exceeds 10.5 mm, flexibility and adhesion are impaired. The open area of the entire surface of the microporous membrane is preferably 20% or more.

More specifically, the pores forming the microporous membrane have a circular shape in which the ratio of the major axis L to the minor axis l is in the range of 1.0 to 3.8, preferably 1.0 to 3.0. And a substantially spherical hole having the major axis L of 180 μm or less, preferably in the range of 10 to 100 μm is optimal.

In the present invention, the sticking and laminating may be formed by directly applying the microporous film forming resin to the carpet before and after the pre-backing treatment. Alternatively, the microporous membrane may be formed once and then laminated and attached to the back surface of the carpet. In this case, it may be applied to the entire surface of the carpet, but of course it may be applied partially. The forming resin may be partially applied, for example, in a ribbon shape or an island shape.

The fixing force of the microporous film in the carpet connecting structure of the present invention can be influenced by the surface smoothness (difference of surface irregularities) of the smooth member facing the microporous film, of course, 5 g / It is desirable that it is cm ² or more.

The fastening force was measured by the following method. <Fixing force> A 2 cm x 10 cm sample is taken, and a loop with a length of 4 cm is made at the center of 1 cm from one end in the length direction. This was connected to a vertical test plate of 50 cm x 125 cm size (polyacrylic plate, thickness 3 mm, surface irregularity difference of 3 μ or less) and then pressure-bonded. Peel off) Find the load when dropped.

As the smooth member in the present invention, a sheet-like material having excellent peelability and having at least one smooth surface can be applied. Examples of the sheet-like material include cloth, paper, stainless steel, aluminum foil, natural rubber, synthetic resin film, slit cloth and the like. Examples of synthetic resin films include polyolefins (polyethylene, polypropylene), polyurethanes, polyamides, polyesters, polyvinyl chloride, polyvinylidene chloride, silicones, and other thermoplastic materials such as woven or knitted fabrics and composites with nonwoven fabrics. Can be mentioned. It is also preferable to perforate in order to control the flexibility and the fastening force. As a perforation method, a needle or rod heated at room temperature or above the softening point of the sheet is needling, punching perforation by an appropriate method, heating embossing or perforating a mesh pattern. And so on.

In addition, it is preferable that the unevenness on at least one surface of the sheet-like material which is the smooth member is 25 μm or less, and more preferably 20 μm or less. By changing the difference between the unevenness, the fastening force can be arbitrarily changed. Generally, the fastening force tends to decrease as the unevenness increases.

A member having at least one smooth surface is not suitable because it has poor releasability because it cannot be adhered to the opposing microporous membrane to be peeled off and the microporous membrane is damaged.

The microporous membrane or the smooth member in the present invention may be formed by applying the membrane or the smooth member-containing cloth directly to an appropriate support, in addition to the method of applying and adhering the membrane or the smooth member-forming resin. There is a method of setting. That is, a cloth such as a woven or knitted cloth or a non-woven cloth is treated with a solution or dispersion of the film or the resin for forming a smooth member to form a film or a cloth containing the smooth member, which is treated by spraying, dipping or the like. These are laminated and attached to the back surface of the carpet or an appropriate support.

Adhesion is performed by using a normal adhesive such as a solvent type, an emulsion type, a hot melt type or by sewing and joining them with a sewing machine thread, and by fusion bonding with a high frequency welder, an ultrasonic welder, etc. be able to.

Further, it is preferable to interpose the foam with the microporous membrane or the above-mentioned smooth member in order to improve the feeling of stepping, the durability, and the cushioning property (impact absorbing property).

The foam used in the present invention includes a polymer, a copolymer and a mixed polymer generally called a thermoplastic synthetic resin, which are foamed by a foaming agent and which are optionally bridged. Be done.

Specifically, polyolefin-based, rubber-based, vinyl chloride-based, polyurethane-based, polyethylene-polystyrene copolymer, EVA, and the like, which are elastic foams having excellent resilience and impact energy absorption, are most preferable. Materials include polyethylene, urethane foam, and rubber.

The floor surface may be any floor material such as a wooden floor, concrete, stone, marble, cushion floor, tile, hard vinyl chloride tile, glass plate, and stainless steel.

Further, in the present invention, the thing that constitutes the carpet may be a generally used one.

There is no particular limitation on the configuration or shape thereof, and any of knitted fabric, non-woven fabric, a composite of these, or a napped pile fabric may be used. However, napped pile fabrics are generally preferred. For the napped portion and the base cloth, various fibers and threads that are usually applied to carpets such as natural fibers, synthetic fibers and inorganic fibers can be applied.

More specifically, as the material for the raised portions and the base cloth used in the present invention, synthetic fibers such as nylon, polyester, polyacrylonitrile, or natural fibers such as wool can be used. The pile yarn may be filament yarn (including processed yarn) or spun yarn.

On the other hand, the base fabric may be either a knitted fabric or a non-woven fabric. Moreover, the thing etc. which raised these base materials may be mentioned.

The pile yarn is tufted onto a base fabric at a tuft m / c, for example, and then a backing process is performed using synthetic rubber, synthetic resin, natural rubber or the like to fix the pile yarn. As such carpets, ordinary loop carpets, cut pile carpets, flocking carpets, etc. are generally used.

The first structural requirement of the present invention is that the back surface is a locked member as a requirement on the carpet side. The second of the structural requirements is that, as shown in FIGS. 1 and 2, the lock members are joined to the back-side locked members of the carpet from the bottom to the top across the boundary of two or more adjacent carpets, and the mutual It is a structure that connects carpets.

The third structural requirement is that the back surface of the lock member and the floor surface are not bonded. With such a structure, it is possible to lay the carpet by the laying method without contaminating the floor surface by connecting small carpets to several tens to several hundreds. Small carpets can be placed side by side as well as bedding. Of course, the carpet connection structure of the present invention can also be used for interior materials other than carpets, such as wall coverings, furniture, small boxes, and external decorative materials.

[0044]

【Example】

 Next, the present invention will be described in more detail based on embodiments.

Example 1 A cut pile raw machine having a pile height of 8.2 mm and a pile areal weight of 1350 g / m ² was obtained by a tuft machine using nylon-BCF having 1600 denier and two twists as a pile yarn. Next, this greige was dyed with an acid dye, and subsequently a latex containing SBR as a main component was applied to the back side of the greige and dried at 130 ° C. for 20 minutes (applied amount of SBR: 220 g / m ² ). On the other hand, 100 parts by weight of polyester-based polyurethane (solid content 50%) was mixed with 10 parts by weight of a fatty acid salt-based activator as a foaming agent, and 3 parts by weight of a water-soluble epoxy as a cross-linking agent, and the mixture was mechanically treated by a foaming machine. Whisked into. This product was applied to the above SBR prebacking carpet and then heat-treated at 120 ° C. for 13 minutes → 160 ° C. for 5 minutes to obtain a foaming ratio of 3.2 times and a film thickness of 3. A carpet having a 2 mm microporous membrane attached was obtained.

Next, a so-called tile carpet was obtained by cutting the above carpet into a size of 50 × 50 cm ² . Eight tile carpets were connected as shown in FIG. 3 by using, as a lock member, a polyester film having a thickness of 85 μ, which was slit into a width of 50 mm, on the wooden floor surface. In the figure, the solid line indicates the tile carpet, and the broken line indicates the position and shape of the lock member.

When tile carpets were placed side by side, they moved when walking or when a vacuum cleaner sucked, but when the tiles were placed side by side, the function of a large carpet was obtained. It was firmly attached to the surface and the sliding movement was completely eliminated. Another advantage is that the tile carpet can be easily peeled off, re-arranged, stored and transported.

The open area of the microporous film over the entire surface of the microporous film was 35%. Further, the maximum diameter of the micropores was 30 to 80 μm, and the fastening force was 13 g / cm ² . Furthermore, the dynamic properties of the constituent material of the microporous membrane are as follows: dynamic elastic modulus (log ₁₀ E ') in the rubber region is 8.6 dyne / cm ² , peak height of tan δ is 0.69, The peak temperature of the electrical loss E ″ was −25 ° C.

Example 2 SBR was pre-backed on the carpet greige produced in Example 1 (SBR adhesion amount 465 g / m ² ). Next, a polyethylene film was further laminated backing to this product (film layer thickness: 2.8 mm), and then cut into a size of 50 × 50 cm ² to obtain a tile carpet. On the other hand, a polyurethane microporous membrane (thickness: 2.8 mm, foaming ratio: 3.2) was prepared by the method described in Example 1, and was adhered to a PET non-woven fabric of 95 g / m ^{2 and} the thickness was 38 mm. Slit into width. Using this as a locking member, four tile carpets were connected to the wooden floor as shown in FIG. This product adheres well to the floor surface, does not slip even when walking or cleaning, shows a strong stopping force against slipping force, while showing a weak stopping force against peeling force, and can be peeled easily. It was something that had.

[0050]

[Effect of the device]

 The carpet connection structure of the present invention is a system in which a microporous film having viscoelasticity is adhered and laminated on the back surface of a carpet, and a lock member facing the microporous film is composed of a member having excellent peelability and a smooth surface, On the contrary, a smooth member is adhered and laminated on the back surface of the carpet, and the lock member facing the smooth member is composed of a microporous film having viscoelasticity, and therefore exhibits the following excellent effects.

(A) A plurality of carpets can be connected and arranged side by side without using an adhesive or a pressure-sensitive adhesive, the same function as that of a tatami mat carpet or a laid carpet can be obtained, and the peeling can be repeatedly connected. Have a function.

(B) Since no adhesive or pressure-sensitive adhesive is used, the floor surface is not soiled and can be easily peeled off, and the carpets can be connected and arranged side by side without soiling the hands.

(C) Further, when the carpets are connected and arranged side by side, it is possible to attach an accent with an arbitrary color and pattern, so that it is possible to meet the diversification demand.

D) Further, in parallel arrangement, removal, partial replacement, storage and transportation, the simple handling characteristic of the tile carpet can be sufficiently exerted.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a carpet connecting structure according to the present invention.

FIG. 2 is a sectional view showing another embodiment of the carpet connecting structure according to the present invention.

FIG. 3 is a plan view showing an example of a connection mode of carpet groups according to the present invention.

FIG. 4 is a plan view showing another example of the connection mode of the carpet group according to the present invention.

[Explanation of symbols]

 1: Floor surface 2: Microporous film 3: Carpet 4: Surface smoothing member

Claims (3)

[Scope of utility model registration request] 1. A carpet connecting structure, wherein a lock member and a locked member provided on a back surface of the carpet are joined to the carpet to connect two or more adjacent carpets. 2. A member to be locked, in which a microporous film having viscoelasticity is adhered and laminated on the back surface of a carpet, and a member having excellent peelability and a smooth surface. Item 1. The structure for connecting carpets according to Item 1. 3. A sheet shape in which a member having excellent peelability and having a smooth surface is adhered and laminated on the back surface of a carpet, and a microporous film having viscoelasticity is adhered and laminated on the lock member. The carpet connection structure according to claim 1, wherein the carpet connection structure is made of a material.