JPS6021714A - Tile carpet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to carpet tiles, and more particularly, to a carpet tile that reduces the partial volume corresponding to the protrusions of the floor surface to be covered and provides a flat carpet. The present invention relates to a tile carpet that can form a surface.

Prior Art Conventionally, plastic tiles, so-called vinyl tiles, have been used as flooring materials for offices and residences. In addition to problems such as being hard, cold, uncomfortable to step on, and easily tiring, the vinyl tiles also had other problems such as being unsatisfactory in appearance. For this reason, long carpets having an upper surface layer made of fibrous material have come to be used instead of vinyl tiles. However, such long carpets are troublesome to transport, carry in, and install, and furthermore, when local stains occur, it is impossible to locally replace them, and local repairs can seriously impair the aesthetics. There is a problem.

In recent years, carpet tiles of various shapes, such as squares, rectangles, and rhombuses, have come into use as bedding materials to solve the above-mentioned problems. This type of front tile carpet is easy to transport, carry in, and install.
It has the advantage that local replacement is possible, and that the carpet tiles of various colors can be combined to form a desired pattern. Such conventional carpet tiles consist of an upper surface layer made of a fiber material and a backing layer provided on the back surface of the upper surface layer.

The king layer consists of a layer of an adhesive material that easily undergoes permanent deformation due to thermoplasticity at room temperature, such as vinyl 2-men or aggressive polypropylene, and a backing layer such as paper pasted on the backside. When installing, either peel off the back layer from the adhesive material layer and stick the adhesive material layer to the floor surface, or apply it to the floor surface with adhesive etc. without peeling off the back layer. It's well glued. The above-mentioned carpet tiles have the advantage that since the adhesive material layer is easily deformed at room temperature, it can be deformed along the floor surface to fit the floor surface. However, the fluidity of bitumen and atactic polypropylene increases with increasing temperature and pressure. Therefore, in hot seasons or places, or in places where it is stepped on by a large number of people, the backing layer of conventional tile tiles will flow and deform, causing problems such as loss of practicality and loss of aesthetics. is occurring. Bitumen also has the disadvantage of staining walls and floors black due to its sticky nature.

In order to solve the above problems, natural rubber, synthetic rubber,
Alternatively, the back layer is formed from synthetic resin. However, the back layer of such carpet tiles is relatively hard, so this carpet tile is
When installed on a floor surface with protrusions, such as a floor surface with electric wires or metal fittings, the surface of the tile carpet will partially protrude to accommodate these electric wires or metal fittings, resulting in a flat tile carpet. I can't get to the surface.

What problems were there?

Aim of the Invention 3 An object of the present invention is to provide a tile carpet that, even when applied to a floor surface with protrusions, can partially reduce its volume to accommodate the protrusions and form a flat surface. It is to provide.

Structure of the Invention The tile carpet of the present invention has an upper surface layer formed using a fiber material, and a backing layer formed using natural or synthetic rubber or synthetic resin on the back side thereof, The backing layer is characterized in that it comprises at least one compressible foam layer.

The tile carite of the present invention has an upper surface layer formed using a fiber material, and a backing layer formed using natural or synthetic rubber or synthetic resin on the back side thereof. At least a portion of at least one layer of the upper surface layer and the backing layer may be electrically conductive. The upper surface layer is formed using a fiber material, and
There are no particular limitations on its structure or shape, and it may be a woven fabric, a knitted fabric, a nonwoven fabric, or a composite thereof.

There are no particular restrictions on the type of fiber that forms the upper surface layer, and it is formed from natural fibers such as cotton, linen, and wool, and synthetic polymers such as polyester, I-lyeethylene, polypropylene, nylon 6, nylon 66, and acrylic polymer. It may be formed using one or more types of synthetic fibers, semi-synthetic fibers such as cellulose acetate, and other known fibers, and further,
Glass fibers, carzene fibers, and semimetallic fibers may be used in combination. These fibers may be used in the form of cotton, yarn (sugun yarn or multifilament yarn), tape yarn, striped yarn, monofilament with a circular or irregular cross section, flat monofilament, etc. Good too.

The upper surface layer is lower than 1010Ω71, for example, 102~1
If it is necessary to have a specific volume resistivity of 0.010Ω2m, conductive fibers such as carbine fibers, metal fibers such as stainless steel fibers may be used alone as the fiber material, or other fibers may be used. Alternatively, a conductive substance such as Rikizen Black, conductive metal powder or conductive compound powder such as copper halide powder may be mixed into the fiber, or the above-mentioned A conductive paint containing a conductive substance is impregnated or applied to the fiber base layer.

The upper surface layer may be a pile fabric consisting of a fiber base fabric and a fiber/gile layer formed on the upper surface thereof. The fiber pile layer may be constructed of either loop pile or cut pile.

In order to impart a volume resistivity of 102 to 1010 cm to the raised fabric, the fiber pile layer may be composed of conductive fibers or may be mixed with conductive fibers. At this time, the conductive fibers are connected to or come into contact with other piles at the root portion of the base fabric, making the entire base fabric layer conductive. It is also possible to communicate with and contact the precoat layer at the root portion.

In addition, when a 4-layer fabric is used to form the upper surface layer, an adhesive may be applied to the back surface of the 4-yl fabric to form a precoat layer in order to prevent the fiber pile from falling off. In this case, the precoat layer preferably has electrical conductivity. A precoat layer with conductive properties such as PVC, for example.

Synthetic resins such as BVA, J-urethane, polyacrylic, polyester, and polyamide, or chlorosulfonated polyethylene, polyurethane, butyl rubber, and I-1 sosolene rubber, as well as liquid, powder, and fibrous conductive materials, such as man-pumps. It can be formed by using an adhesive obtained by mixing rack, graphite, or various conductive metals.

As mentioned above, when the upper surface layer consists of the base fabric and the lunar layer, it is preferable that at least one of them has conductivity,
Moreover, when the upper surface layer consists of a base fabric, a glossy layer, and a precoat layer, it is preferable that at least one of them has electrical conductivity.

A backing layer is formed on the surface of the upper surface layer for the purpose of improving its dimensional stability, shape stability, and latheability.

This backing layer is formed from natural or synthetic rubber or synthetic resin, but for the purpose of improving dimensional stability, a fiber base fabric may be included in the backing layer. . This backing fiber base fabric may be any one of woven fabric, knitted fabric, and non-woven fabric as described above.

The carpet tile backing layer of the present invention has at least one compressible foam layer.

The backing layer may have an incompressible layer bonded to the back side of the top surface layer, and one or more foam layers bonded to the back side, and the back side of the bottom layer of foam. for,
Thickness 0.5+mn or less, preferably 0.1~0.01w
More preferably, n is stretchable or easily deformable.

The materials forming each layer of the backing layer are natural rubber, synthetic rubber,
Examples, jt id: SDR, chlorosulfonated polyethylene rubber, polyurethane rubber, zotyl com, polyurethane rubber, etc., or synthetic resins such as polyvinyl chloride (PVC), polyurethane, ethylene-vinyl acetate copolymer, aitsuta , polypropylene, polyethylene, polyacrylic, polyester, polyamide, etc. These preferred materials may also contain plasticizers, fillers, colorants, stabilizers and/or other additives. These backing layer forming materials are 40
It is preferable that the material does not undergo permanent deformation due to thermoplasticity at temperatures below .degree. Preferred backing layer forming material c.
These include polyvinyl chloride resin, polyurethane resin, ethylene-vinyl acetate variant (EVA) resin, polypropylene, polyethylene, polystyrene, and various natural and synthetic rubbers.

The foam layer included in the backing layer is formed of one or a mixture of two or more of the above materials. The foam layer has a thickness of at least 2.0mm, preferably 3-4mm, and a porosity of 60mm or more, preferably 80-99mm.
It is preferable that it has 99% pores. In other words, the density of the foam layer is 200 to 10 ky/
Preferably, it is m3. General protrusions formed on the floor, for example, protrusions formed on the floor by electric wires, wiring fittings, etc. (generally about 1 to 2.5 cm in height) are wrapped by partial volume reduction of the foam layer. The thickness and porosity of the foam layer may be determined such that the foam layer can be used. In addition, in order to keep the stepping feeling of the partially reduced volume part as described above and the other six parts almost the same, the foam layer preferably has a thickness of 0.5 kg/cm"-0, OO1kg/cm". preferably exhibits a uniaxial compression resistance of 0.1 to 0.005 kg/α2 (compression ratio of 25 inches). In addition, the foam layer can be easily cut to fit the shape of the protrusion.
It also has the advantage that grooves etc. can be cut out.

There are no particular limitations on the method of forming the foam, and any method such as mechanical foaming or chemical foaming can be employed depending on the foaming material used.

Forming a coating layer on the back side of the foam layer can prevent wear and damage to the foam layer and also prevent water from entering. For the covering layer, an appropriate material can be selected from the above-mentioned materials. Further, tile carpets whose bottom layer is made of foam or a foam having a covering layer have a characteristic that the floor surface has a good fret surface and there is no movement or slippage of the tile carpet.

The backing layer is 1010Ω--very small or 102~1
When it is necessary to have a specific volume resistivity of 01° Ω, at least a liquid, powder, or fibrous material is added in a matrix of natural or synthetic rubber or synthetic resin. One type of conductive material, such as Kazembra, Ri,
Metals (e.g. Atr Au r AgPt, Cu, Cr
+Ni, Zn, Ti +Ph, Sn, Pd, compounds thereof, or Ni-Cr alloy), or a conductive compound (for example, indium oxide). The amount of the conductive substance to be mixed is determined by taking into consideration the conductivity, properties, and desired degree of conductivity of the substance, but in order to impart conductivity to the backing layer - at least a factor of 5 (by weight). It is preferably 10 to 70 inches (by weight), and more preferably 10 to 70 inches (by weight). Of course, the amount of the conductive material mixed is not limited to less than 70%, and can be greater than 70% as long as the backing layer has desired properties (strength, flexibility, appearance, etc.). Good too.

When the backing layer includes a base fabric, the base fabric may contain the above-mentioned conductive fibers or may be impregnated with a conductive substance.

Effects of the Invention Since the tile carpet of the present invention has a compressible foam layer in its back layer, the protrusions formed on the floor surface can be wrapped therein, and therefore the tile carpet can be made into a flat tile. A carpet surface can be formed.

Patent applicant Mitsubishi Burlington Corporation Hiraoka Orisen Co., Ltd. Patent agent Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney Akira Yamaguchi Procedural amendment (voluntary) August 1981) Cu Commissioner of the Patent Office Kazuo Wakasugi 1. Indication of the case 1980 Patent Application No. 129498 2. Name of the invention Tile Carpet 3. Relationship with the case by the person making the amendment Name of the patent applicant Title Mitsubishi Burlington Co., Ltd. Name Hiraoka Orizome Co., Ltd. 4, Agent ( 5. Contents of the amendment in column 6 of "Detailed Description of the Invention" of the specification to be amended (1) In the 6th line of page 2 of the specification, the term ``partial volume'' has been replaced with ``partial volume''. The volume is corrected.

(2) Delete "wo" in the first line of page 3.

(3) On page 5, line 18, insert the following statement between "have" and "these."

r The tile carpet of the present invention is particularly 0. A.It is effective to use Frantoke Yumei electric wire on the floor for equipment and their wiring, for example, in offices that are frequently renovated. ” (4) Page 5, bottom line, [may have]. '', it is preferable to include W.

”.

(5) On page 9, lines 6 and 7, add ``The type of fiber is not particularly limited as mentioned above, but glass, polyester, etc. are preferable'' after ``any one is fine.'' .

(6) On page 10, line 11 of the same, the phrase "...vinyl resin polyurethane resin" is corrected to "...vinyl resin, polyurethane resin j.

(7) Page 10, line 12, “...(EV
A) Correct the phrase "resin polypro" to "...(EVA) resin, polypro".

(8) On page 10, line 18, “thickness of 3 to 4 moromi” is changed to “
Correct the thickness to 3 to 4 iw or more.

(9) Page 11, line 14, "It also has advantages." However, in offices where office automation is advanced, it is preferable that the foam layer has electrical conductivity. (7) On page 12, line 3, "fretability" is corrected to "fitness."

aυ Same page 13, line 5, “It may be impregnated.”
Add the following statement after.

c The present invention comprises an upper surface layer formed using a fiber material and a backing layer containing at least one foam layer, preferably the foam layer is the bottom layer, and the lower surface is covered with a soft film. And even better. In this case, it is preferable that the upper surface layer has a specific resistivity of lO2 to 1010 Ω-an, and the backing layer including the foam layer has a specific resistivity of 102 to 108 Ω-an. In some cases, it is preferable that the specially prepared bottom layer be an insulating (1010 Ω-crn or higher) film to prevent electric shock. ” Procedural amendment (voluntary) October 1982? Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office1, Indication of the case, 1982 Patent Application No. 1294982, Name of the invention Tile Carpet3, Relationship with the person making the amendment Name of the patent applicant Mitsubishi Burlington Co., Ltd. Name Hiraoka Orizon Co., Ltd. Company 4, Agent (2 others) 5. Subject of amendment Column 6 of "Detailed explanation of the invention" of the written statement of the Kadoyo 1 stated in the procedural amendment (spontaneous) submitted on August 25, 1988. Amendment Contents of ``Showa 1'' Procedural Amendment Letter dated August 25, 1958, page 4, lines 5 to 8, ``In this case, it is preferable.'' The full text of ``In this case, it is preferable.'' Rate 102~1010Ω-
The backing layer including the foam layer is 102 to 108 Ω-
Preferably, it includes at least one layer having a secondary resistivity. ” he corrected.

Claims (1)

[Claims] 1. An upper surface layer formed using a fiber material, and a backing layer formed using natural or synthetic rubber or synthetic resin on the back side thereof, and the backing layer comprises at least one compressible foam layer,
to. 2. The carpet tile of claim 1, wherein the foam layer has a thickness of at least 2.0 mm and a porosity of at least 60%. 3. The carpet tile according to claim 1, wherein at least a portion of at least one of the upper surface layer and the backing layer is electrically conductive. t. 5. The foam layer is 0.5-0.001 kg7cmV
)-axial compression resistance (compression rate of 25 inches) ◎