US20140134387A1 - Mat - Google Patents
Mat Download PDFInfo
- Publication number
- US20140134387A1 US20140134387A1 US14/158,288 US201414158288A US2014134387A1 US 20140134387 A1 US20140134387 A1 US 20140134387A1 US 201414158288 A US201414158288 A US 201414158288A US 2014134387 A1 US2014134387 A1 US 2014134387A1
- Authority
- US
- United States
- Prior art keywords
- fibers
- filler
- mat
- pile yarn
- backing layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000011630 iodine Substances 0.000 claims abstract description 56
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 56
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- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 claims description 3
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
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- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
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- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
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- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
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- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
- WRTMQOHKMFDUKX-UHFFFAOYSA-N triiodide Chemical compound I[I-]I WRTMQOHKMFDUKX-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
- D06N7/0071—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
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- A47G27/00—Floor fabrics; Fastenings therefor
- A47G27/02—Carpets; Stair runners; Bedside rugs; Foot mats
- A47G27/0212—Carpets; Stair runners; Bedside rugs; Foot mats to support or cushion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
- B60N3/048—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets characterised by their structure
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
- D06N7/0065—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by the pile
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
- D06N7/0068—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by the primary backing or the fibrous top layer
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2471/00—Floor coverings
- B32B2471/04—Mats
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/02—Properties of the materials having acoustical properties
- D06N2209/025—Insulating, sound absorber
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/04—Properties of the materials having electrical or magnetic properties
- D06N2209/048—Electromagnetic interference shielding
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/101—Vibration damping, energy absorption
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/165—Odour absorbing, deodorizing ability
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
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- Y10T428/23979—Particular backing structure or composition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23986—With coating, impregnation, or bond
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23993—Composition of pile or adhesive
Definitions
- the present invention relates to a mat which is applied to carpets to be laid in rooms, chair mats for operations of computers, floor surface mats to be laid on entrances of rooms, door mats, floor s or face mats to be laid in elevators or in front of opening/closing doors of elevator halls, or floor mats to be laid in cabins of automobiles, trains and airplanes.
- the present invention relates to a mat which is capable of effectively reducing energy of radiations (e.g. ⁇ -rays, ⁇ -rays, ⁇ -rays, X-rays, etc.), electromagnetic waves, vibrations, sounds, impacts and so on and which has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- bacteria and viruses spread around us, and those susceptible to damage therefrom are less resistive aged persons, children, patients and the like, for whom it is required to maintain a health life environment.
- Patent Document 1 Japanese Patent Laid-open. Publication No. 6-248562
- Patent Document 2 Japanese Patent Laid-open Publication No. 2000-199418
- Patent Document 3 Japanese Patent Laid-open Publication No. 2005-84606
- An object of the present invention is to provide a mat which is capable of significantly contributing to sound and healthy life environment, and particularly capable of effectively reducing energy of radiations (e.g. ⁇ -rays, ⁇ -rays, ⁇ -rays. X-rays, etc.), electromagnetic waves, vibrations, sounds, impacts, radiations and so on and which has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- radiations e.g. ⁇ -rays, ⁇ -rays, ⁇ -rays. X-rays, etc.
- the subject matter of the invention according to claim 1 is a mat with a backing layer formed on the back surface side of a fiber surface layer, wherein at least one of the fiber surface layer and the backing layer contains at least, one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 2 is the mat according to claim 1 , wherein the fiber surface layer includes a pile yarn driving base fabric and a pile yarn driven in the base fabric, and at least one of the base fabric and the pile yarn contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 3 is the mat according to claim 1 , wherein the fiber surface layer includes a pile yarn driving base fabric, a pile yarn driven in the base fabric, and a discharge sheet laminated on the back surface side of the pile driving base fabric, the pile yarn is driven in the pile driving base fabric and the discharge sheet, the discharge sheet contains conductive fibers that atmospherically discharge static electricity, and at least one of the base fabric, the pile yarn and the discharge sheet contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 4 is the mat according to claim 2 , wherein the pile yarn, driving base fabric includes a nonwoven fabric containing a metal phthalocyanine compound or a derivative thereof.
- the subject matter of the invention according to claim 5 is the mat according to claim 2 , wherein the pile yarn driving base fabric includes a nonwoven fabric containing metal-plated conductive fibers.
- the subject matter of the invention according to claim 6 is the mat according to claim 3 , wherein the pile yarn driving base fabric includes a nonwoven fabric containing a metal phthalocyanine compound or a derivative thereof.
- the subject matter of the invention according to claim 7 is the mat according to claim 3 , wherein the pile yarn driving base fabric includes a nonwoven fabric containing metal-plated conductive fibers.
- the subject matter of the invention according to claim 8 is the mat according to claim 2 , wherein the pile yarn driving base fabric is provided with a precoating on the back surface side, and the precoating contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 9 is the mat according to claim 3 , wherein the pile yarn driving base fabric is provided, with a precoating on the back surface side, and the precoating contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 10 is the mat according to claim 8 , wherein the pile yarn contains metal-plated conductive fibers.
- the subject matter of the invention according to claim 11 is the mat according to claim 9 , wherein the pile yarn contains metal-plated conductive fibers.
- the subject matter of the invention according to claim 12 is the mat according to claim 1 , wherein the backing layer includes a resin sheet, and the resin sheet contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 13 is the mat according to claim 12 , wherein the backing layer has a foamed resin structure foamed at a foaming ratio of 1 to 30, has an infinite number of pores opened at the surface, contains short fibers, and has a hardness of 10 to 40 degrees.
- the subject matter of the invention according to claim 14 is the mat according to claim 13 , wherein the short fiber contained in the backing layer is at least one selected from the fiber group of polyamide fibers, vinylon fibers, vinylidene fibers, polyvinyl chloride fibers, polyester fibers, acrylic fibers, polyethylene fibers, polypropylene fibers, polychlal fibers, rayon fibers, acetate fibers, cotton, hemp, wool fibers and feather fibers.
- the subject matter of the invention according to claim 15 is the mat according to claim 12 , wherein a large number of locking projections for preventing dislocation are provided on the back surface side of the backing layer, portions having no locking force or portions having a small locking force as compared to other portions are formed on the circumferential surfaces of the large number of locking projections for preventing dislocation, and the portions having no locking force or the portions having a small locking force as compared to other portions in the large number of locking projections for preventing dislocation are formed to lace in a fixed direction.
- the subject matter of the invention according to claim 16 is the mat according to claim 13 , wherein a large number of locking projections for preventing dislocation are provided on the back surface side of the backing layer, portions having no locking force or portions having a small locking force as compared to other portions are formed on the circumferential surfaces of the large number of locking projections for preventing dislocation, and the portions having no locking force or the portions having a small locking force as compared to other portions in the large number of locking projections for preventing dislocation are formed to face in a fixed direction.
- the subject matter of the invention according to claim 17 is the mat according to claim 1 , wherein the backing layer includes a fiber sheet selected from a felt, a weave, a knit, a nonwoven fabric and a composite thereof and the fiber sheet contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the subject matter of the invention according to claim 18 is the mat according to claim 17 , wherein a lining material for preventing dislocation is attached on the back surface side of the backing layer, the lining material includes a pile knitted product knitted using a loop-shaped pile yarn formed of a monofilament or a pile woven product woven using the loop-shaped pile yarn, the loop-shaped pile yarn is cat, and a cut end thereof is projected as a locking portion that locks a floor surface.
- the subject matter of the invention according to claim 19 is the mat according to claim 1 , wherein the backing layer is bonded, to the fiber surface layer with, an adhesive layer interposed therebetween, and the adhesive layer contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the organic attenuating filler includes at least one compound selected from p-(p-toluenesulfonylamide)diphenylamine, 4,4′-bis( ⁇ , ⁇ -dimethylbenzyl)diphenylamine, octylaled diphenylamine, 2,2′-methylenebis(4-ethyl-6-tert-butylphenol) and 4,4′-thiobis(3-methyl-6-tert-butylphenol),
- the iodine-based compound is an iodo hall with iodine carried and stored, on a carrier to form a complex, an iodine clathrate with the iodo hall included, as a guest molecule, in a host molecule, or 1-(diiodomethylsulfonyl)-4-methylbenzene and 3-iodo-2-propynyl
- a mat of the present invention is capable of effectively reducing energy of radiations (e.g. ⁇ -rays, ⁇ -rays, ⁇ -rays, X-rays, etc.), electromagnetic waves, vibrations, sounds, impacts, and so on, and has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties because at least one of a fiber surface layer and a backing layer contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- the mat of the present invention is considered to significantly contribute to measures against electromagnetic waves and radiations in hybrid cars and EV cars because the organic attenuating filler and the radiation reduction filler can reliably absorb and remove electromagnetic waves and radiations.
- FIG. 1 is an enlarged sectional view illustrating one configuration of a mat of the present invention.
- FIG. 2 is an enlarged sectional view illustrating another configuration of a mat of the present invention.
- FIG. 3 is a plan view of a principal part illustrating a backing layer of the back surface of the mat of the present invention.
- FIG. 4 is an enlarged plan view of a locking projection formed on the backing layer illustrated in FIG. 3 .
- FIG. 5 is an enlarged perspective view of the locking projection formed on the backing layer illustrated in FIG. 3 .
- FIG. 6 is an enlarged sectional view of a principal part when viewing the front side from the rear side at the time of laying on the floor surface the mat illustrated, in FIG. 3 .
- FIG. 7 is a plan view of a principal part illustrating another example of a backing layer of the back surface of the mat of the present invention.
- FIG. 8 is an enlarged plan view of a locking projection formed on the backing layer illustrated in FIG. 7 .
- FIG. 9 is an enlarged front view of the locking projection formed on the backing layer illustrated in FIG. 8 .
- FIG. 10 is an enlarged side view of the locking projection formed on the backing layer illustrated in FIG. 8 .
- FIG. 11 is a plan view of a principal part illustrating still another example of a backing layer of the back surface of the mat of the present invention.
- FIG. 12 is an enlarged plan view of a locking projection formed on the backing layer illustrated in FIG. 11 .
- FIG. 13 is an enlarged perspective view of the locking projection formed on the backing layer illustrated in FIG. 11 .
- FIG. 14 is a plan view of a principal, part illustrating still another example of a backing layer of the back surface of the mat of the present invention.
- FIG. 15 is an enlarged plan view of a locking projection formed on the backing layer illustrated in FIG. 14 .
- FIG. 16 is an enlarged front view of the locking projection formed on the backing layer illustrated in FIG. 14 .
- FIG. 17 is an enlarged side view of the locking projection formed on the backing layer illustrated in FIG. 14 .
- FIG. 18 is a plan view of a principal part illustrating still another example of a backing layer of the back surface of the mat of the present invention.
- FIG. 19 is an enlarged plan view of a locking projection formed on the backing layer illustrated in FIG. 18 .
- FIG. 20 is an enlarged front view of the locking projection formed on the backing layer illustrated in FIG. 18 .
- FIG. 21 is art enlarged side view of the locking projection formed on the backing layer illustrated in FIG. 18 .
- FIG. 22 is a plan view of a principal part illustrating still another example of a backing layer of the back surface of the mat of the present invention.
- FIG. 23 is an enlarged plan, view of a locking projection formed on the backing layer illustrated in FIG. 22 .
- FIG. 24 is an enlarged front view of the locking projection formed on the backing layer illustrated in FIG. 22 .
- FIG. 25 is an enlarged side view of the locking projection, formed on the backing layer illustrated in FIG. 22 .
- FIG. 26 is an enlarged sectional view of a principal part of a mat illustrating still another example of a mat of the present, invention.
- FIG. 27 is an enlarged plan view of a principal part of a lining material illustrated in FIG. 26 .
- FIG. 28 is a sectional view illustrating a state when the mat of the present invention is laid on a carpet of the floor surface.
- FIG. 29 is a plan view illustrating still another example of a mat of the present invention.
- FIG. 30 is a graph illustrating a result of evaluation of electromagnetic wave attenuation performance for the mat illustrated in FIG. 2 .
- FIG. 31 is a graph illustrating antibacterial effects on Staphylococcus aureus for the mat illustrated in FIG. 2 and the blank mat.
- FIG. 32 is a graph illustrating antibacterial effects on Klebsiella pneumoniae for the mat illustrated, in FIG. 2 and the blank mat.
- FIG. 33 is a graph illustrating antibacterial, effects on MRSA for the mat illustrated in FIG. 2 and the blank mat.
- the mat of the present invention is a mat which is applied to carpets to be laid in rooms, chair mats for operations of computers, floor surface mats to be laid on entrances of rooms, door mats, floor surface mats to be laid in elevators or in front of opening/closing doors of elevator hails, or floor mats to be laid in cabins of automobiles, trains and airplanes.
- Mats 11 and 21 illustrated in FIGS. 1 and 2 include fiber surface layers 12 and 22 , backing layers 13 and 23 formed on the back surface side of the fiber surface layer, and adhesive layers 14 and 24 provided between the fiber surface layer and the backing layer, and the fiber surface layers 12 and 22 , backing layers 13 and 23 and adhesive layers 14 and 24 contain at least one selected from an organic attenuating filler (marked as ⁇ ), a radiation reduction filler (marked as ⁇ ), an iodine-based compound (marked as ⁇ ) and an allergen reduction filler (marked as ⁇ ).
- an organic attenuating filler marked as ⁇
- a radiation reduction filler marked as ⁇
- an iodine-based compound marked as ⁇
- an allergen reduction filler marked as ⁇
- the organic attenuating filler can effectively reduce energy of electromagnetic waves, vibrations, sounds, impacts and so on, and examples thereof may include those including at least one compound selected from p-(p-toluenesulfonylamide)diphenylamine, 4,4′-bis( ⁇ , ⁇ -dimethylbenzyl)diphenylamine, octylated diphenylamine, 2,2′-methylenebis(4-ethyl-6-tert-butylphenol) and 4,4′-thiobis(3-methyl-6-tert-butylphenol).
- the organic attenuating filler has the above-described compound existing as a microphase-separated dispersion, phase or a fully eompatibilized dispersion, phase in matrix phases of resins that form liber surface layers 12 and 22 , backing layers 13 and 23 and adhesive layers 14 and 24 of mats 11 and 21 .
- the dispersion phase is desired to exist in the matrix phase in a size of an average particle diameter of 1 ⁇ m or less, more preferably an average particle diameter of 0.1 ⁇ m or less in that an energy attenuating effect is more effectively exhibited.
- the compound that forms the dispersion phase is desired to be contained in a ratio of 1 to 60 parts by weight, preferably 15 to 50 parts by weight based on 100 parts by weight of resins that form the matrix phase.
- a ratio of 1 to 60 parts by weight preferably 15 to 50 parts by weight based on 100 parts by weight of resins that form the matrix phase.
- substances such as carbon, black, mica scales, glass chips, glass fibers, carbon fibers, calcium carbonate, barite, precipitated barium sulfate, stearic acid and ester oil, and a corrosion inhibitor, a dye, an antioxidant, an antistatic agent, a stabilizer, a wetting agent and the like can be appropriately added in the matrix phases of resins that form mats 11 and 21 , fiber surface layers 12 and 22 , backing layers 13 and 23 and adhesive layers 14 and 24 .
- the radiation reduction filler has a function enabling the amount of transmitted radiations to be reduced by reflecting or absorbing radiations such as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays.
- the radiation reduction filler may he at least one selected from an organic filler selected from metal phthalocyanine compounds shown in the following formula and derivatives thereof (metal M is a metal selected from Fe, Co, Mn, Ti V, Ni, Cu, Zn, Mo, W and Os), a metal-based filler selected from tungsten, indium, cesium, lead, lead hydroxide, barium, barium hydroxide, barium stearate, boron trinitride and a gadolinium salt, and a combination thereof.
- metal M is a metal selected from Fe, Co, Mn, Ti V, Ni, Cu, Zn, Mo, W and Os
- a metal-based filler selected from tungsten, indium, cesium, lead, lead hydroxide, barium, bar
- the content of the radiation reduction filler is not particularly limited, and may be appropriately determined according to a use purpose or a use form to which the present invention is applied.
- the radiation reduction filler can be contained in the following form: the radiation reduction filler is deposited on the fiber surface layer or the hacking layer (in fine pores when the backing layer is an open-cell type foamed resin sheet) with an adhesive component interposed therebetween, the adhesive component being at least one selected from an emulsion selected from an acrylic resin emulsion, a modified acrylic resin emulsion and an ethylene-vinyl acetate copolymer resin emulsion, a latex selected from a styrene-butadiene rubber latex, an acrylonitrile-butadiene rubber latex and a chloroprene rubber latex, and a resin selected from an acrylic resin, an acrylic styrene resin, a urethane resin and an epoxy resin.
- the adhesive component being at least one selected from an emulsion selected from an acrylic resin emulsion, a modified acrylic resin emulsion and an ethylene-vinyl acetate copolymer resin emulsion, a late
- examples of the iodine-based compound may include those formed of an iodo hall with iodine or a triiodide (iodide) such as sodium iodide or potassium iodide carried and stored on an iodine carrier such as a polyether glycol, a polyacrylic acid, a polyamide, a polyoxyalkylene, a starch, polyvinyl pyrrolidone and polyvinyl alcohol to form a complex, or an iodine clathrate with the iodo hall included, as a guest molecule, in a host molecule including at least one selected from gelatin, lactose, carboxymethyl cellulose, gum arable and cyclodextrin (e.g.
- Iodine-based compounds formed of 1-(diiodomethylsulfonyl)-4-methylbenzene and 3-iodo-2-propyoylbutyl carbonate do not instantly kill bacteria and viruses, but exhibit antibacterial and antiviral properties with a mechanism in which by destroying only cell walls to inflict damage, bacteria and viruses are caused to release alarm pheromones, so that nearby bacteria and viruses are expelled.
- these iodine-based compounds when used, the antibacterial effects are sustained over a long period of time as compared to a type of antibacterial agent that instantly kills bacteria and viruses.
- these iodine-based compounds have the advantage that the use amount can be drastically reduced if the iodine-based compound is made to exhibit antibacterial effects over the same period of time as a type of antibacterial agent that instantly kills bacteria and viruses exhibits antibacterial effects.
- the iodine clathrate one with the iodo hall included such that the host molecule and the guest molecule exist in a weight ratio of 99:1 to 50:50 is preferred because it has a sufficient antibacterial effect and thermal stability.
- an Iodine clathrate with the iodo hall included in cyclodextrin as a host molecule is preferred because it is excellent in iodine retaining properties and excellent in thermal stability and dispersibility.
- the effective amount of iodine in the iodine-based, compound is desired to be at least 5%, preferably 5 to 20% in that sufficient antibacterial properties can be exhibited.
- Which type of iodine-based compound is to be used may be appropriately determined in consideration of a level and a duration of required performance (e.g. an effective amount of iodine, an amount of iodine released per unit time, etc.), a temperature and a pressure during production, a use environment, and so on.
- a level and a duration of required performance e.g. an effective amount of iodine, an amount of iodine released per unit time, etc.
- a temperature and a pressure during production e.g. an effective amount of iodine, an amount of iodine released per unit time, etc.
- the iodine-based compound is desired to be contained in a ratio of 0.1 to 30 parts by weight, more preferably 1 to 25 parts by weight, most preferably 5 to 25 parts by weight based on 100 parts by weight of base resins that form fiber surface layers 12 and 22 , backing layers 13 and 23 and adhesive layers 14 and 24 of mats 11 and 21 .
- the content of the iodine-based compound is less than 0.1 part by weight, sufficient performance may not be obtained, and when the content of the iodine-based compound is more than 30 parts by weight, the following adverse effects may arise: the effect is excessively strong, the iodine-based compound is not uniformly dispersed in a resin, the mechanical strength of fiber surface layers 12 and 22 , backing layers 13 and 23 and adhesive layers 14 and 24 of mats 11 and 21 which contain the iodine-based compound is reduced, and so on,
- the allergen, reduction filler reduces an allergen amount by decomposing or adsorbing allergens such, as pollens and mite dead bodies, and a specific example thereof may be at least one selected from metal phathalocyanme compounds shown in the following formula and derivatives thereof (metal M is a metal selected, from Fe, Co, Mn, Ti, V, Ni, Cu, Zn, Mo, W and Os), and terpenoids such as a terpene hydrocarbon, a terpene alcohol, a terpene aldehyde and a terpene ketone, and clay minerals such as bentonite, montmorillonite, hidelite, hectorite, mica and talc.
- metal M is a metal selected, from Fe, Co, Mn, Ti, V, Ni, Cu, Zn, Mo, W and Os
- terpenoids such as a terpene hydrocarbon, a terpene alcohol, a terpene aldehyde and a
- the content of the allergen reduction filler is not particularly limited, and may be appropriately determined according to a use purpose or a use form to which the present invention is applied.
- the allergen reduction filler may be contained in the following form; the radiation reduction filler is deposited on the fiber surface layer or the backing layer (in fine pores when the backing layer is an open-cell type foamed resin sheet) with an adhesive component interposed therebetween, the adhesive component being at least one selected from an emulsion selected from an acrylic resin emulsion, a modified acrylic resin emulsion and an ethylene-vinyl acetate copolymer resin emulsion, a latex selected from a styrene-butadiene rubber latex, an acrylonitrile-butadiene rubber latex and a chloroprene rubber latex, or a resin selected from an acrylic resin, an acrylic styrene resin, a urethane resin, and an epoxy resin.
- the adhesive component being at least one selected from an emulsion selected from an acrylic resin emulsion, a modified acrylic resin emulsion and an ethylene-vinyl acetate copolymer resin emulsion, a
- fiber surface layers 12 and 22 , backing layers 13 and 23 and adhesive layers 14 and 24 which contain at least one selected from an organic attenuating filler (marked as ⁇ ), a radiation reduction filler (marked as ⁇ ), an iodine-based compound (marked as ⁇ ) and an allergen reduction filler (marked as ⁇ ) will be described.
- the fiber surface layers 12 and 22 include pile yarn driving base fabrics 15 and 25 , and pile yarns 16 and 26 driven in the base fabrics 15 and 25 .
- Examples of the base fabrics 15 and 25 may include nonwoven fabrics, weaves, knits, papers and felts having as constituent fibers one or more selected from polyolefin-based fibers such as those of polypropylene and polyethylene, polyester-based fibers such as those of polyethylene terephtbalate, polyamide-based fibers such as those of nylon 6 and nylon 66, acryl-based fibers such as those of polyaerylonitrile, or synthetic fibers such as polyvinyl alcohol-based fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and hemp, and animal fibers such, as wool fibers and feather fibers, or composites obtained by combining one or more thereof.
- polyolefin-based fibers such as those of polypropylene and polyethylene
- polyester-based fibers such as those of polyethylene terephtbalate
- polyamide-based fibers such as those of nylon 6 and nylon 66
- nonwoven fabrics having olefin-based fibers such as polyethylene fibers and polypropylene fibers as constituent fibers are employed as base fabrics 15 and 25 .
- the material and structure of base fabrics 15 and 25 are not particularly limited, and may be appropriately determined in consideration, of a use purpose and a use state of the mat.
- a configuration can be employed in which the base fabrics 15 and 25 contain at least one of the above-described organic attenuating filler (marked as ⁇ ), radiation reduction filler (marked as ⁇ ), iodine-based compound (marked as ⁇ ) and allergen reduction filler (marked as ⁇ ), and in this case, base fabrics 15 and 25 are capable of effectively reducing energy of radiations such as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays, electromagnetic waves, vibrations, sounds, impacts, and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorteation properties. They may be contained in an arbitrary form, and can be included as constituent fibers of base fabrics 15 and 25 , as a binder for bonding constituent fibers, or as a resin with which the base fabrics 15 and 25 are coated or impregnated.
- radiations such as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays
- a configuration can be employed in which base fabrics 15 and 25 contain conductive fibers 18 and 28 .
- Examples of the configuration in which base fabrics 15 and 25 contain conductive fibers 18 and 28 may include a configuration in which the conductive fibers are contained, as a part of constituent fibers of base fabrics 15 and 25 , and a configuration as discharge papers 17 and 27 which have a function to atmospherically discharge static electricity and are laminated integrally to base fabrics 15 and 25 on the back surface side.
- metal fibers 18 and 28 metal fibers such as stainless steel fibers or aluminum fibers, metal fibers obtained by forming a metal film of silver or copper on the surfaces of synthetic fibers such as those of polyethylene or polypropylene by conventional plating such as electroplating and non-electrolytic plating, fibers with a metal powder or a conductive compound powder mixed therein, carbon fibers, or fibers obtained by combining the above-described fibers.
- discharge papers 17 and 27 illustrated in FIGS. 1 and 2 may be those produced by a wet papermaking method after mixing conductive fibers such as carbon fibers with synthetic fibers such as polyethylene fibers or polypropylene fibers, and further a wood pulp and a fibrous thermoplastic binder (e.g. polyvinyl alcohol) at a predetermined ratio, and further finely cutting the mixture through a beater to form a uniform mixture.
- conductive fibers such as carbon fibers
- synthetic fibers such as polyethylene fibers or polypropylene fibers
- a wood pulp and a fibrous thermoplastic binder e.g. polyvinyl alcohol
- a configuration can also be employed in which, the base fabrics 15 and 25 contain a metal phthalocyanine compound shown in the following chemical formula or a derivative thereof.
- Metal M in the formula is a metal selected from Fe, Co, Ma, Ti, V, Ni, Cu, Zn, Mo, W and Os.
- Examples of the configuration in which base fabrics 15 and 25 contain a phthalocyanine compound or a derivative thereof may include those formed by mix-spinning synthetic fibers, semisynthetic fibers or natural fibers carrying a phthalocyanine compound or a derivative thereof as constituent fibers.
- the phthalocyanine compound or a derivative thereof has excellent deodomation and anti-allergy functions, and when the base fabrics 15 and 25 contain a phthalocyanine compound or a derivative thereof, the obtained mat 11 , is given an antibacterial effect, from the phthalocyanine compound of a derivative thereof in addition to the antibacterial effect from the iodine-based compound, and therefore has a further excellent antibacterial., deodorization and anti-allergy functions.
- the base fabrics have an excellent, antibacterial effect due to triple effects from an iodine-based compound, a phthalocyanine compound or a derivative thereof and metal ions such as those of silver or copper released from metal fibers.
- pile yarns 16 and 26 struck in the base fabrics 15 and 25 may include those including yarns obtained by mix-spinning polyotein-based fibers such as those of polypropylene and polyethylene, polyester-based fibers such as those of polyethylene terephthalate, polyamide-based fibers such as those of nylon 6 and nylon 66, acryl-based fibers such as those of polyaerylonitrile, or synthetic fibers such as polyvinyl alcohol-based fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and temp, and animal fibers such as wool fibers and feather fibers alone or in combination of two or more thereof, and twisting the yarn to a predetermined thickness (e.g.
- pile yarns 16 and 26 a material including a polar polymer such as polyamide-based fibers because the polar polymer itself has excellent performance of attenuating energy of electromagnetic waves and the like.
- the pile yarns 16 and 26 are tufted to base fabrics 15 and 25 in a predetermined volume (e.g. 5 to 10 threads for each i-inch interval) to loon fiber surface layers 12 and 22 .
- pile yarns 16 and 26 contain at least one of the above-described organic attenuating filler (marked as ⁇ ), radiation reduction filler (marked, as ⁇ ), iodine-based, compound (marked as ⁇ ) and allergen reduction filler (marked as ⁇ ).
- pile yarns 16 and 26 are capable of effectively reducing energy of radiations such as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties. They may be contained in an arbitrary form, and can be included as fibers that form pile yarns 16 and 26 , or as a resin, with which the pile yarns 16 and 26 are coated or impregnated.
- a configuration can be employed in which the base fabrics 16 and 26 contain conductive fibers 18 and 28 like the base fabrics 15 and 25 .
- conductive fibers 18 and 28 contained in pile yarns 16 and 26 make it easy to conduct static electricity charged on the human body, and the conductive fibers 18 atmospherically discharge the static electricity.
- metal fibers such as those of silver or copper are used as conductive fibers 18 and 28 contained in base fabrics 16 and 26 , an excellent static electricity removal function is exhibited and the antibacterial effect is further enhanced owing to metal ions such as those of silver or copper released from metal fibers.
- the back surfaces of fiber surface layers 12 and 22 are provided with precoatings 30 and 40 in order to prevent, pile yarns 16 and 26 from falling out and improve conformability with the packing layer 13 and the adhesive layer 24 .
- a resin such as a styrene-butadiene-styrene copolymer, a styrene-emylene-butylene-styrene block copolymer, an ac-nylonitrile-butadiene-based copolymer or a urethane resin, a rubber-based resin, such as styrene-buladiene rubber, acrylonitrile-butadiene robber, butadiene rubber, natural rubber or isoprene rubber, a resin obtained by mixing two or more thereof, or the like may be used.
- a resin such as a styrene-butadiene-styrene copolymer, a styrene-emylene-butylene-styrene block copolymer, an ac-nylonitrile-butadiene-based copolymer or a urethane resin
- a rubber-based resin such as
- the precoatings 30 and 40 can be formed by, for example, a method in which the aforementioned resin is sprayed in the form of an emulsion to the back surfaces of fiber surface layers 12 and 22 .
- a configuration can be employed in which the mat of the present invention contain at least one of the above-described organic attenuating filler (marked as ⁇ ), radiation reduction filler (marked as ⁇ ), iodine-based compound (marked as ⁇ ) and allergen reduction filler (marked as ⁇ ) in the precoatings 30 and 40 .
- precoatings 30 and 40 are capable of effectively reducing energy of radiations such as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- backing layers 13 and 23 illustrated in FIGS. 1 and 2 contain at least one of the above-described organic attenuating filler (marked as ⁇ ), radiation reduction filler (marked as ⁇ ), iodine-based compound (marked as ⁇ ) and allergen reduction filler (marked as ⁇ ).
- backing layers 13 and 23 are capable of effectively reducing energy of radiations such, as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- the backing layer 13 illustrated in FIG. 1 includes a resin sheet.
- the resin that forms the backing layer may include polymers such as a styrene-butadiene-styrene copolymer, a styrene-ethylene-butylene-styrene block copolymer, an acrylonitrile-butadiene-based copolymer and a methane resin, rubber-based polymers such as styrene-butadiene rubber, acrylonitrile-butadiene rubber, butadiene rubber, natural rubber or isoprene rubber, and resins obtained by mixing two or more thereof.
- a filter, a foaming agent, a thickener and a dispersant may be added to the resin as necessary.
- Examples of the filler may include sodium polyacrylates, carboxymethyl cellulose, talc, aluminum hydroxide and antimony oxide.
- Examples of the foaming agent include fatty acid soaps, sodium alkyklallylsulfonates, higher alcohol sulfuric acid ester sodiums and mono-amide disodium N-octadecylsulfosuccinate.
- Examples of the thickener include sodium polyacrylates, polyvinyl alcohol, casein and fermented polysaccharides, but low-molecular-weight sodium polyacrylates are preferred.
- Examples of the dispersant may include sodium tripolyphosphate and sodium hexametaphosphate.
- a configuration can be employed in which the backing layer 13 has a foamed resin structure foamed, at a foaming, ratio of 1 to 30, has an infinite number of pores opened at the surface, contains short fibers, and has a hardness of 10 to 40 degrees.
- the backing layer 13 has viscosity to dramatically increase a coefficient of friction with the floor surface, so that dislocation hardly occurs, and an effect of weight reduction can be obtained.
- the backing layer includes a foamed resin containing short fibers, and therefore a strength that prevents the backing layer from being easily damaged by an external force applied to the mat 11 .
- the backing layer 13 of the mat 11 illustrated, in FIG. 1 is made soft so as to have a hardness of 10 to 40 degrees, the following effect is exhibited: even if the mat 11 is dislocated forward to get caught on the accelerator pedal or the brake pedal, the tip of the mat is easily bent to quickly detach the mat from the accelerator pedal or the brake pedal, so that the possibility that the mat interferes with the accelerator pedal or the brake pedal to affect pedal operations is eliminated.
- the hardness of the backing layer 13 falls out of the above-described range, either a strength capable of sufficiently resisting an external force applied to the floor mat or a softness that prevents the mat from interfering with the pedal even if the mat is dislocated cannot be obtained.
- the foaming ratio of the backing layer 13 is less than J, an effect to dramatically increase the coefficient of friction with the floor surface and reduce the weight cannot be obtained, and when the foaming ratio is more than 30, the backing layer becomes fragile, so that an external force applied to the mat may not be sufficiently resisted.
- the hardness of the hacking layer 13 is adjusted to 10 to 40 degrees by including short fibers in the backing layer 13 .
- the short fiber contained in the backing layer 13 may be at least one selected from, for example, synthetic fibers such as polyamide fibers, vinylon fibers, vinylidene fibers, polyvinyl chloride fibers, polyester fibers, acrylic fibers:, polyethylene fibers, polypropylene fibers and polychlal fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and hemp, animal fibers such as wool fibers and feather fibers, metal fibers, carbon fibers, glass fibers and ceramic fibers.
- synthetic fibers such as polyamide fibers, vinylon fibers, vinylidene fibers, polyvinyl chloride fibers, polyester fibers, acrylic fibers:, polyethylene fibers, polypropylene fibers and polychlal fibers, regenerated fibers such as rayon fibers, semisynthetic fibers
- the fiber diameter and fiber length of short fibers contained in the backing layer are not particularly limited, but the fiber diameter is 10 dtex or less, preferably 5 dtex, most preferably 5 dtex or less, and the fiber length is 1 mm or less, preferably 0.1 mm or less, most preferably 0.01 mm in that the fibers can be uniformly dispersed in a resin that forms the backing layer.
- a configuration can also be employed in which the backing layer 13 contains a crosslinker such as, for example, divinyl benzene, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, triacrylformal, trimethylolpropane trimethacrylate, allyl methacrylate, 1,3-butyl glycol dimethacrylate, triallyl isocyanate, pentaerythritol tetraacrylate, dipentaerythritol tetramethacrylate, dipentaerythritol hexaacrylate or dipentaerythritol hexamethacrylate.
- a crosslinker such as, for example, divinyl benzene, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, triacrylformal, trimethylolpropane trimethacrylate, allyl methacrylate, 1,3-butyl glycol dimethacrylate, triallyl iso
- the content of the crosslinker is not limited, but is preferably 0.1 to 2 parts by mass, more preferably 0.1 to 1.5 parts by mass based on 100 parts by mass of the base resin.
- the backing layer 13 has a through-hole 19 extending therethrough in the front/rear direction, and locking projections 20 for preventing dislocation are provided on the back, surface side.
- Locking projections 20 are not particularly limited, but for example, as illustrated in FIGS. 3 to 25 , portions having no locking force or portions having a small locking force as compared to other portions can be formed on the circumferential surfaces of a large number of locking projections 20 for preventing dislocation on the back surface side of the backing layer 13 such that the portions having no locking force or the portions having a small locking force as compared to other portions in the locking projections 20 face in a fixed direction.
- the locking force of the locking projections acts in the traveling direction of the automobile, and therefore even, when a load is applied in the traveling direction of die automobile by a driver or a passenger during driving, the locking projections effectively suppress dislocation of the mat by resiting the force.
- portions having no locking force or portions having a small Socking force as compared to other portions in the locking projections 20 face in a direction opposite to the traveling direction of the automobile, and therefore the locking force of the locking projections does not act in this direction, so that removal and position adjustment of the mat can be smoothly performed.
- the locking projection 20 illustrated in FIGS. 3 to 6 is substantially conical, a part of the circumferential surface thereof is cut out from the top to the bottom of the locking projection, and a portion having no locking force is formed by the cut portion 20 a .
- the configuration illustrated in FIGS. 3 to 6 shows an example in which the mat 11 of the present invention is applied to a floor mat of an automobile, where the locking projections 20 of the back surface of the backing layer 13 are arranged such that cut portions 20 a having no locking force face toward the rear side of the automobile when the mat 11 is laid on the automobile floor surface.
- the locking projections 20 bite into the carpet of the automobile floor surface to lock the carpet, so that dislocation of the mat is reliably prevented.
- the mat when the mat is drawn toward the rear side for laying the mat at a predetermined position on the floor surface, the mat can be smoothly position-adjusted because cut portions 20 a formed, on the circumferential surfaces of the locking projections 20 and having no locking force are arranged to face toward the rear side.
- a large number of substantially conical locking projections 20 are formed on the hack surface of the backing layer 13 , a part of the circumferential surface of the locking projection is cut out from almost the center to the bottom of the locking projection, and the cut portion 20 a has a reduced height as compared to other portions and has an accordingly smaller locking force.
- a large number of star-like spindle-shaped locking projections 20 are formed on the back surface of the backing layer 13 , a part, of the circumferential surface of the locking projection is cut out from the top to the bottom of the locking projection, and a portion having no locking force is formed by the cut portion 20 a.
- a large number of star-like spindle-shaped locking projections 20 are formed on the back surface of the backing layer 13 , a part of the circumferential surface of the locking projection is cut out from almost the center to the bottom of the locking projection, and the cut portion 20 a has a reduced height as compared to other portions and has an accordingly smaller locking force.
- a large number of locking projections 20 are provided, on the back surface side of the backing layer 13 , and a plurality of locking pieces 20 b are formed on the circumferential surface of each locking projection 20 .
- a portion having no locking piece 20 b is formed on the circumferential surface of the locking projection 20 , and this portion, forms a portion having no locking force.
- a large number of locking pieces 20 b are formed on the circumferential surface of each locking projection 20 of the backing layer 13 , a locking piece 20 c having a reduced height as compared to the locking piece 20 b is formed, on a part of the circumferential surface of the locking projection 20 , and the cut piece 20 c has a reduced height as compared, to other portions and has an accordingly smaller locking force.
- the backing layer 23 in the mat 21 illustrated in FIG. 2 is a fiber sheet including a felt, a weave, a knit or a nonwoven fabric having as constituent fibers one or more selected from polyolefin-based fibers such as those of polypropylene and polyethylene, polyester-based fibers such as those of polyethylene merephthalate, polyamide-based fibers such, as those of nylon 6 and nylon 66, acryl-based fibers such as those of polyaerylonitrile, or synthetic fibers such as polyvinyl alcohol-based fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and hemp, animal fibers such as wool fibers and feather fibers, metal fibers, carbon fibers, glass fibers and ceramic fibers, or a composite thereof.
- polyolefin-based fibers such as those of polypropylene and polyethylene
- polyester-based fibers such as those of polyethylene merephthalate
- polyamide-based fibers such as those
- a lining material 29 for preventing dislocation is attached on the back surface side of the backing layer 23 .
- the lining material 29 is not particularly limited, and examples thereof may include those including a pile knitted product or a pile woven, product knitted or woven using a loop-shaped pile yarn formed of a monofilament, wherein the loop-shaped pile yarn is cut, and the cot end thereof is projected as a locking portion that locks the floor surface.
- the lining material 29 illustrated in FIG. 2 is a knit formed by cutting a loop-shaped warp that connects the surface and the back surface of a warp knitting weft-inserted knit (not illustrated), with a cut end 29 a of the warp being projected as a locking portion to exhibit a dislocation prevention function.
- a configuration can also be employed in which the lining material 29 has its cut end inclined and projected in one direction as a locking portion that locks the floor surface.
- a loop-shaped pile yarn 50 is formed by weaving two monofilaments in a diamond shape into a base knitted fabric formed of a ground yarn, and the tip of the loop-shaped pile yarn 50 is cut, whereby two cut ends 50 a are inclined in the knitting direction and each cut end 50 a is opened in substantially a V shape.
- a pile knitted product or pile woven product having a loop-shaped pile yarn whose tip is cut (or a pile knitted product or pile woven, product having a loop-shaped pile yarn whose tip is not cut is acceptable) is placed on a heat plate with the cut end (loop-shaped pile yarn) situated on the lower side, and heat-treated while being pressed obliquely rearward from above, whereby the cut end (loop-shaped pile yarn) can be inclined in a fixed direction, and its shape can be fixed.
- the cut end 50 a of the loop-shaped pile yarn 50 is inclined only in one direction.
- the cut end 50 a of the loop-shaped pile yarn 50 bites into the automobile floor surface (carpet) and acts as a locking portion even when a load is applied in the traveling direction, of the automobile by a driver or a passenger during driving as illustrated in FIG. 28 , so that dislocation of the mat 21 is reliably prevented.
- the cut end 50 a does not bite into the automobile floor surface (carpet), and therefore does not act as a locking portion, so that detachment and position adjustment of the mat can be smoothly performed.
- a lining material 29 a having a fine density of loop-shaped pile yarns and a lining material 29 b having coarse density of loop-shaped pile yarns can be provided as illustrated in FIG. 29 , followed by attaching these two lining materials 29 a and 29 b to the back surface of the mat.
- the lining material 29 a having a fine density is attached on the front side of the mat
- the lining material 29 b having a coarse density is attached on the rear side of the mat.
- bin the lining material 29 a having a fine density of loop-shaped pile yarns has a high density and hence a large locking force, so that the heavy load can be resisted.
- the lining material 29 b having a coarse density of loop-shaped pile yarns has a low density and hence a small locking force, so that, position adjustment of the mat can be smoothly performed.
- the fiber surface layers 12 and 22 (base fabrics 13 and 25 ) and backing layers 13 and 23 are bonded with adhesive layers 14 and 24 interposed therebetween.
- the adhesive layers 14 and 24 include a hot melt resin.
- resin a polyamide-based hot melt resin, a polystyrene-based hot melt resin, a polyethylene-based hot melt resin, an EVA-based hot melt resin and the like can be suitably used.
- the hot melt resin can be interposed between the fiber surface layers 12 and 22 (base fabrics 15 and 25 ) and the backing layers 13 and 23 in the form of a cobweb-like film.
- the hot melt resin can also be added in the form of an emulsion between both the layers.
- the adhesive layer can be omitted by thermocompression-bonding the serail-molten backing layer 13 to the fiber surface layer 12 to infiltrate a part of the backing layer 13 info the fiber surface layer 12 to be solidified.
- a configuration can be employed in which the adhesive layers 14 and 24 contain any one of the above-described organic attenuating filler (marked as radiation reduction, filler (marked, as ⁇ ), iodine-based compound (marked as ⁇ ) and allergen reduction filler (marked as ⁇ ).
- adhesive layers 14 and 24 are capable of effectively reducing energy of radiations such as ⁇ -rays or ⁇ -rays and ⁇ -rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral, properties, anti-allergen properties and deodorization properties.
- a mat 11 illustrated in FIG. 1 includes a pile yarn driving base fabric 15 including a nonwoven fabric containing a metal phthalocyanine compound or a derivative thereof and silver-plated conductive fibers, and a fiber surface layer 12 including the pile yarn driving base fabric 15 , wherein a pile yarn 16 containing silver fibers 18 is driven in the pile yarn driving base fabric 15 .
- a precoating 14 containing octylated diphenylamine as an organic attenuating filler (marked as ⁇ ) and 1-(diiodomethylsulfonyl)-4-methylbenzene as an iodine-based compound (marked as ⁇ ) is provided on the back surface side of the fiber surface layer 12 , and a backing layer 13 including a foamed resin sheet having an open-cell structure including hemp short fibers with a styrene-ethylene-butylene-styrene block copolymer as abase is formed on the back surface side of the fiber surface layer 12 with the precoating 14 interposed therebetween.
- a large number of through-holes 19 and projections 20 for preventing dislocation are formed on the backing layer 13 .
- the fiber surface layer 12 contains a radiation reduction filler (marked as ⁇ ) and an allergen reduction filler (marked as ⁇ ).
- electromagnetic wave attenuation properties were evaluated. Evaluation of electromagnetic wave attenuation properties was performed by measuring electromagnetic wave attenuation properties (dB) in a frequency range of 1 MHz to 1 GHz by a KEC method (near electric field, near magnetic field (MA 8602B manufactured by ANRITSU CORPORATION)) using a spectrum analyzer (R3132 manufactured by ADVANTEST CORPORATION). The results are shown, in FIG. 30 .
- electromagneticwave attenuation properties were measured to evaluate the electromagnetic wave attenuation properties also/or a blank mat (where a fiber surface layer formed by driving a predetermined volume of pile yarns, which did not contain silver fibers, in a pile yarn driving base fabric which did not contain a metal phthalocyanine compound or a derivative thereof was provided, a precoating which did not contain an organic attenuating filler (marked as ⁇ ) and an iodine-based compound (marked as ⁇ ) was provided on the back surface side of the fiber surface layer, and a backing layer including a foamed resin sheet as described above was formed on the back side).
- a blank mat where a fiber surface layer formed by driving a predetermined volume of pile yarns, which did not contain silver fibers, in a pile yarn driving base fabric which did not contain a metal phthalocyanine compound or a derivative thereof was provided, a precoating which did not contain an organic attenuating filler (marked as ⁇ ) and an iodine-based compound (
- the graph of FIG. 30 shows that for the blank mat, attenuation of electromagnetic waves in a frequency range of 1 MHz to 1 GHz was not observed, while for the mat according to Example, electromagnetic waves in a frequency range of 1 MHz to 300 MHz, for which evaluation was performed, among electromagnetic waves in a frequency range of 30 to 300 MHz which are supposed to be easily absorbed in the human body, were absorbed at a rate of 90 to 99.7%. Also, the mat of Example showed an absorption ratio of 90% for electromagnetic waves at a frequency of 1 GHz which are associated with carcinogenicity and supposed to likely cause malfunction of electronic devices, and therefore it was confirmed that the mat according to Example was excellent in electromagnetic wave attenuation properties.
- antibacterial effects were evaluated. Antibacterial effects were evaluated by inoculating the mat illustrated in FIG. 2 and the blank mat by immersing the mats in bacterial solutions containing Staphylococcus aureus, Streptococcus pneumoniae and MRSA, respectively, and counting the number of living bacteria immediately after inoculation and after 18 hours of culture. For the mat illustrated in FIG. 2 , antibacterial effects after washing 5 times were also evaluated. The antibacterial effects on Staphylococcus aureus, Streptococcus pneumoniae and MRSA for the mat illustrated in FIG. 2 and the blank mat are shown in FIGS. 31 to 33 .
- the numbers of bacteria (real number) after 18 hours of culture for Staphylococcus aureus, Streptococcus pneumoniae and MRSA are 12,589,254, 31,622,77 and 12,589,254, respectively, in the case of the blank mat, while in the ease of the mat according to Example, the numbers of bacterial (real number) after 18 hours of culture for the above-described bacteria are 20 or less, 20 or less and 32, respectively, and the numbers of bacterial (real number) after washing 5 times after 18 hours of culture were 20 or less for all of the above-described bacteria, and therefore it has been confirmed that the mat of Example has an excellent antibacterial effect.
- the present invention proposes a mat which is capable of significantly contributing to sound and healthy life environment and particularly capable of effectively reducing energy of electromagnetic waves, vibrations, sounds, impacts, radiations, radiations and so on and which, has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- the mat can be suitably applied to carpets to be laid in rooms, chair mats for operations of computers, floor surface mats to be laid on entrances of rooms, door mats, floor surface mats to be laid in elevators or in front of opening/closing doors of elevator halls, and floor mats to be laid in cabins of automobiles, trains and airplanes, particularly floor mats to be laid, in cabins of hybrid cars and EV cars for which, it is required to take measures against impacts of electromagnetic waves, for example malfunction of vehicle-mounted instruments and health hazards.
Abstract
Description
- The present invention relates to a mat which is applied to carpets to be laid in rooms, chair mats for operations of computers, floor surface mats to be laid on entrances of rooms, door mats, floor s or face mats to be laid in elevators or in front of opening/closing doors of elevator halls, or floor mats to be laid in cabins of automobiles, trains and airplanes. Particularly, the present invention relates to a mat which is capable of effectively reducing energy of radiations (e.g. α-rays, β-rays, γ-rays, X-rays, etc.), electromagnetic waves, vibrations, sounds, impacts and so on and which has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- In recent years, measures against impacts of electromagnetic waves generated from motors, batteries and tires, for example malfunction of vehicle-mounted instruments and health hazards have been frequently emphasized in association with prevalence of automobiles, particularly hybrid cars and EV cars. On hybrid cars and EV cars, a large battery of 600 bolts or more is mounted, and since electromagnetic waves generated therefrom are incomparably greater than electromagnetic waves generated from mobile phones and microwave ovens, it is required to take thorough measures against the situation.
- On the other hand, bacteria and viruses spread around us, and those susceptible to damage therefrom are less resistive aged persons, children, patients and the like, for whom it is required to maintain a health life environment.
- For the purpose of suppressing damage from bacteria and viruses, there have been heretofore proposed antibacterial fiber sheets, wherein a pile yarn containing copper and a pile yarn containing aluminum are driven in a discharging fiber sheet (see, for example, Patent Document 1).
- On the other hand, there have been extensively proposed energy attenuation sheets in which a resin sheet containing an inorganic filler or a resin sheet having a continuous pore structure is employed to attenuate energy of vibrations and sounds (see, for example. Patent Documents 2 and 3).
- Patent Document 1: Japanese Patent Laid-open. Publication No. 6-248562
- Patent Document 2: Japanese Patent Laid-open Publication No. 2000-199418
- Patent Document 3: Japanese Patent Laid-open Publication No. 2005-84606
- An object of the present invention is to provide a mat which is capable of significantly contributing to sound and healthy life environment, and particularly capable of effectively reducing energy of radiations (e.g. α-rays, β-rays, γ-rays. X-rays, etc.), electromagnetic waves, vibrations, sounds, impacts, radiations and so on and which has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties.
- For achieving the above-described object, the subject matter of the invention according to claim 1 is a mat with a backing layer formed on the back surface side of a fiber surface layer, wherein at least one of the fiber surface layer and the backing layer contains at least, one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to claim 2 is the mat according to claim 1, wherein the fiber surface layer includes a pile yarn driving base fabric and a pile yarn driven in the base fabric, and at least one of the base fabric and the pile yarn contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to claim 3 is the mat according to claim 1, wherein the fiber surface layer includes a pile yarn driving base fabric, a pile yarn driven in the base fabric, and a discharge sheet laminated on the back surface side of the pile driving base fabric, the pile yarn is driven in the pile driving base fabric and the discharge sheet, the discharge sheet contains conductive fibers that atmospherically discharge static electricity, and at least one of the base fabric, the pile yarn and the discharge sheet contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to
claim 4 is the mat according to claim 2, wherein the pile yarn, driving base fabric includes a nonwoven fabric containing a metal phthalocyanine compound or a derivative thereof. - The subject matter of the invention according to
claim 5 is the mat according to claim 2, wherein the pile yarn driving base fabric includes a nonwoven fabric containing metal-plated conductive fibers. - The subject matter of the invention according to claim 6 is the mat according to claim 3, wherein the pile yarn driving base fabric includes a nonwoven fabric containing a metal phthalocyanine compound or a derivative thereof.
- The subject matter of the invention according to claim 7 is the mat according to claim 3, wherein the pile yarn driving base fabric includes a nonwoven fabric containing metal-plated conductive fibers.
- The subject matter of the invention according to claim 8 is the mat according to claim 2, wherein the pile yarn driving base fabric is provided with a precoating on the back surface side, and the precoating contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to claim 9 is the mat according to claim 3, wherein the pile yarn driving base fabric is provided, with a precoating on the back surface side, and the precoating contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to
claim 10 is the mat according to claim 8, wherein the pile yarn contains metal-plated conductive fibers. - The subject matter of the invention according to claim 11 is the mat according to claim 9, wherein the pile yarn contains metal-plated conductive fibers.
- The subject matter of the invention according to claim 12 is the mat according to claim 1, wherein the backing layer includes a resin sheet, and the resin sheet contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to claim 13 is the mat according to claim 12, wherein the backing layer has a foamed resin structure foamed at a foaming ratio of 1 to 30, has an infinite number of pores opened at the surface, contains short fibers, and has a hardness of 10 to 40 degrees.
- The subject matter of the invention according to claim 14 is the mat according to claim 13, wherein the short fiber contained in the backing layer is at least one selected from the fiber group of polyamide fibers, vinylon fibers, vinylidene fibers, polyvinyl chloride fibers, polyester fibers, acrylic fibers, polyethylene fibers, polypropylene fibers, polychlal fibers, rayon fibers, acetate fibers, cotton, hemp, wool fibers and feather fibers.
- The subject matter of the invention according to
claim 15 is the mat according to claim 12, wherein a large number of locking projections for preventing dislocation are provided on the back surface side of the backing layer, portions having no locking force or portions having a small locking force as compared to other portions are formed on the circumferential surfaces of the large number of locking projections for preventing dislocation, and the portions having no locking force or the portions having a small locking force as compared to other portions in the large number of locking projections for preventing dislocation are formed to lace in a fixed direction. - The subject matter of the invention according to claim 16 is the mat according to claim 13, wherein a large number of locking projections for preventing dislocation are provided on the back surface side of the backing layer, portions having no locking force or portions having a small locking force as compared to other portions are formed on the circumferential surfaces of the large number of locking projections for preventing dislocation, and the portions having no locking force or the portions having a small locking force as compared to other portions in the large number of locking projections for preventing dislocation are formed to face in a fixed direction.
- The subject matter of the invention according to claim 17 is the mat according to claim 1, wherein the backing layer includes a fiber sheet selected from a felt, a weave, a knit, a nonwoven fabric and a composite thereof and the fiber sheet contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to claim 18 is the mat according to claim 17, wherein a lining material for preventing dislocation is attached on the back surface side of the backing layer, the lining material includes a pile knitted product knitted using a loop-shaped pile yarn formed of a monofilament or a pile woven product woven using the loop-shaped pile yarn, the loop-shaped pile yarn is cat, and a cut end thereof is projected as a locking portion that locks a floor surface.
- The subject matter of the invention according to claim 19 is the mat according to claim 1, wherein the backing layer is bonded, to the fiber surface layer with, an adhesive layer interposed therebetween, and the adhesive layer contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler.
- The subject matter of the invention according to
claim 20 is the mat according to any one of claims 1 to 19, wherein the organic attenuating filler includes at least one compound selected from p-(p-toluenesulfonylamide)diphenylamine, 4,4′-bis(α,α-dimethylbenzyl)diphenylamine, octylaled diphenylamine, 2,2′-methylenebis(4-ethyl-6-tert-butylphenol) and 4,4′-thiobis(3-methyl-6-tert-butylphenol), the iodine-based compound is an iodo hall with iodine carried and stored, on a carrier to form a complex, an iodine clathrate with the iodo hall included, as a guest molecule, in a host molecule, or 1-(diiodomethylsulfonyl)-4-methylbenzene and 3-iodo-2-propynylbutyl carbonate, the radiation reduction, filler includes at least one selected from an organic filler selected from a metal phthalocyanine compound and a derivative thereof, a metal-based filler selected from tungsten, indium, cesium, lead, lead hydroxide, barium, barium hydroxide, barium stearate, boron trinitride and a gadolinium salt, and a combination thereof and the allergen reduction filler includes at least one selected from a metal phthalocyanine compound, a derivative thereof a clay mineral and a terpenoid. - A mat of the present invention is capable of effectively reducing energy of radiations (e.g. α-rays, β-rays, γ-rays, X-rays, etc.), electromagnetic waves, vibrations, sounds, impacts, and so on, and has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties because at least one of a fiber surface layer and a backing layer contains at least one selected from an organic attenuating filler, an iodine-based compound, a radiation reduction filler and an allergen reduction filler. Particularly, the mat of the present invention is considered to significantly contribute to measures against electromagnetic waves and radiations in hybrid cars and EV cars because the organic attenuating filler and the radiation reduction filler can reliably absorb and remove electromagnetic waves and radiations.
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FIG. 1 is an enlarged sectional view illustrating one configuration of a mat of the present invention. -
FIG. 2 is an enlarged sectional view illustrating another configuration of a mat of the present invention. -
FIG. 3 is a plan view of a principal part illustrating a backing layer of the back surface of the mat of the present invention. -
FIG. 4 is an enlarged plan view of a locking projection formed on the backing layer illustrated inFIG. 3 . -
FIG. 5 is an enlarged perspective view of the locking projection formed on the backing layer illustrated inFIG. 3 . -
FIG. 6 is an enlarged sectional view of a principal part when viewing the front side from the rear side at the time of laying on the floor surface the mat illustrated, inFIG. 3 . -
FIG. 7 is a plan view of a principal part illustrating another example of a backing layer of the back surface of the mat of the present invention. -
FIG. 8 is an enlarged plan view of a locking projection formed on the backing layer illustrated inFIG. 7 . -
FIG. 9 is an enlarged front view of the locking projection formed on the backing layer illustrated inFIG. 8 . -
FIG. 10 is an enlarged side view of the locking projection formed on the backing layer illustrated inFIG. 8 . -
FIG. 11 is a plan view of a principal part illustrating still another example of a backing layer of the back surface of the mat of the present invention. -
FIG. 12 is an enlarged plan view of a locking projection formed on the backing layer illustrated inFIG. 11 . -
FIG. 13 is an enlarged perspective view of the locking projection formed on the backing layer illustrated inFIG. 11 . -
FIG. 14 is a plan view of a principal, part illustrating still another example of a backing layer of the back surface of the mat of the present invention. -
FIG. 15 is an enlarged plan view of a locking projection formed on the backing layer illustrated inFIG. 14 . -
FIG. 16 is an enlarged front view of the locking projection formed on the backing layer illustrated inFIG. 14 . -
FIG. 17 is an enlarged side view of the locking projection formed on the backing layer illustrated inFIG. 14 . -
FIG. 18 is a plan view of a principal part illustrating still another example of a backing layer of the back surface of the mat of the present invention. -
FIG. 19 is an enlarged plan view of a locking projection formed on the backing layer illustrated inFIG. 18 . -
FIG. 20 is an enlarged front view of the locking projection formed on the backing layer illustrated inFIG. 18 . -
FIG. 21 is art enlarged side view of the locking projection formed on the backing layer illustrated inFIG. 18 . -
FIG. 22 is a plan view of a principal part illustrating still another example of a backing layer of the back surface of the mat of the present invention. -
FIG. 23 is an enlarged plan, view of a locking projection formed on the backing layer illustrated inFIG. 22 . -
FIG. 24 is an enlarged front view of the locking projection formed on the backing layer illustrated inFIG. 22 . -
FIG. 25 is an enlarged side view of the locking projection, formed on the backing layer illustrated inFIG. 22 . -
FIG. 26 is an enlarged sectional view of a principal part of a mat illustrating still another example of a mat of the present, invention. -
FIG. 27 is an enlarged plan view of a principal part of a lining material illustrated inFIG. 26 . -
FIG. 28 is a sectional view illustrating a state when the mat of the present invention is laid on a carpet of the floor surface. -
FIG. 29 is a plan view illustrating still another example of a mat of the present invention. -
FIG. 30 is a graph illustrating a result of evaluation of electromagnetic wave attenuation performance for the mat illustrated inFIG. 2 . -
FIG. 31 is a graph illustrating antibacterial effects on Staphylococcus aureus for the mat illustrated inFIG. 2 and the blank mat. -
FIG. 32 is a graph illustrating antibacterial effects on Klebsiella pneumoniae for the mat illustrated, inFIG. 2 and the blank mat. -
FIG. 33 is a graph illustrating antibacterial, effects on MRSA for the mat illustrated inFIG. 2 and the blank mat. - A mat of the present invention will be described further in detail below with reference of the drawings. The mat of the present invention is a mat which is applied to carpets to be laid in rooms, chair mats for operations of computers, floor surface mats to be laid on entrances of rooms, door mats, floor surface mats to be laid in elevators or in front of opening/closing doors of elevator hails, or floor mats to be laid in cabins of automobiles, trains and airplanes.
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Mats 11 and 21 illustrated inFIGS. 1 and 2 include fiber surface layers 12 and 22, backing layers 13 and 23 formed on the back surface side of the fiber surface layer, and adhesive layers 14 and 24 provided between the fiber surface layer and the backing layer, and the fiber surface layers 12 and 22, backing layers 13 and 23 and adhesive layers 14 and 24 contain at least one selected from an organic attenuating filler (marked as ), a radiation reduction filler (marked as ), an iodine-based compound (marked as Δ) and an allergen reduction filler (marked as Δ). - The organic attenuating filler can effectively reduce energy of electromagnetic waves, vibrations, sounds, impacts and so on, and examples thereof may include those including at least one compound selected from p-(p-toluenesulfonylamide)diphenylamine, 4,4′-bis(α,α-dimethylbenzyl)diphenylamine, octylated diphenylamine, 2,2′-methylenebis(4-ethyl-6-tert-butylphenol) and 4,4′-thiobis(3-methyl-6-tert-butylphenol).
- The organic attenuating filler has the above-described compound existing as a microphase-separated dispersion, phase or a fully eompatibilized dispersion, phase in matrix phases of resins that form liber surface layers 12 and 22, backing layers 13 and 23 and adhesive layers 14 and 24 of
mats 11 and 21. The dispersion phase is desired to exist in the matrix phase in a size of an average particle diameter of 1 μm or less, more preferably an average particle diameter of 0.1 μm or less in that an energy attenuating effect is more effectively exhibited. - The compound that forms the dispersion phase is desired to be contained in a ratio of 1 to 60 parts by weight, preferably 15 to 50 parts by weight based on 100 parts by weight of resins that form the matrix phase. When the content of the compound is less than 1 part by weight, sufficient energy attenuating properties cannot be obtained, and when the content of the compound is more than 60 parts by weight, economical efficiency is deteriorated because attenuating properties corresponding to an extra amount of the compound cannot be obtained.
- In addition to the above-described compound, for example, substances such as carbon, black, mica scales, glass chips, glass fibers, carbon fibers, calcium carbonate, barite, precipitated barium sulfate, stearic acid and ester oil, and a corrosion inhibitor, a dye, an antioxidant, an antistatic agent, a stabilizer, a wetting agent and the like can be appropriately added in the matrix phases of resins that form
mats 11 and 21, fiber surface layers 12 and 22, backing layers 13 and 23 and adhesive layers 14 and 24. - The radiation reduction filler has a function enabling the amount of transmitted radiations to be reduced by reflecting or absorbing radiations such as α-rays or β-rays and γ-rays or X-rays. The radiation reduction filler may he at least one selected from an organic filler selected from metal phthalocyanine compounds shown in the following formula and derivatives thereof (metal M is a metal selected from Fe, Co, Mn, Ti V, Ni, Cu, Zn, Mo, W and Os), a metal-based filler selected from tungsten, indium, cesium, lead, lead hydroxide, barium, barium hydroxide, barium stearate, boron trinitride and a gadolinium salt, and a combination thereof.
- The content of the radiation reduction filler is not particularly limited, and may be appropriately determined according to a use purpose or a use form to which the present invention is applied.
- The radiation reduction filler can be contained in the following form: the radiation reduction filler is deposited on the fiber surface layer or the hacking layer (in fine pores when the backing layer is an open-cell type foamed resin sheet) with an adhesive component interposed therebetween, the adhesive component being at least one selected from an emulsion selected from an acrylic resin emulsion, a modified acrylic resin emulsion and an ethylene-vinyl acetate copolymer resin emulsion, a latex selected from a styrene-butadiene rubber latex, an acrylonitrile-butadiene rubber latex and a chloroprene rubber latex, and a resin selected from an acrylic resin, an acrylic styrene resin, a urethane resin and an epoxy resin.
- On the other hand, examples of the iodine-based compound may include those formed of an iodo hall with iodine or a triiodide (iodide) such as sodium iodide or potassium iodide carried and stored on an iodine carrier such as a polyether glycol, a polyacrylic acid, a polyamide, a polyoxyalkylene, a starch, polyvinyl pyrrolidone and polyvinyl alcohol to form a complex, or an iodine clathrate with the iodo hall included, as a guest molecule, in a host molecule including at least one selected from gelatin, lactose, carboxymethyl cellulose, gum arable and cyclodextrin (e.g. α-cyclodedtrin, β-cyclodextrin, γ-cyclodextrin or cyclocyclodextrin), or 1-(diiodomethylsulfonyl)-4-methylbenzene and 3-iodo-2-propynylbutyl carbonate. Iodine-based compounds formed of 1-(diiodomethylsulfonyl)-4-methylbenzene and 3-iodo-2-propyoylbutyl carbonate do not instantly kill bacteria and viruses, but exhibit antibacterial and antiviral properties with a mechanism in which by destroying only cell walls to inflict damage, bacteria and viruses are caused to release alarm pheromones, so that nearby bacteria and viruses are expelled. Therefore, when these iodine-based compounds are used, the antibacterial effects are sustained over a long period of time as compared to a type of antibacterial agent that instantly kills bacteria and viruses. In other words, these iodine-based compounds have the advantage that the use amount can be drastically reduced if the iodine-based compound is made to exhibit antibacterial effects over the same period of time as a type of antibacterial agent that instantly kills bacteria and viruses exhibits antibacterial effects.
- As the iodine clathrate one with the iodo hall included such that the host molecule and the guest molecule exist in a weight ratio of 99:1 to 50:50 is preferred because it has a sufficient antibacterial effect and thermal stability. Among the above-mentioned iodine clathrates, an Iodine clathrate with the iodo hall included in cyclodextrin as a host molecule is preferred because it is excellent in iodine retaining properties and excellent in thermal stability and dispersibility.
- The effective amount of iodine in the iodine-based, compound is desired to be at least 5%, preferably 5 to 20% in that sufficient antibacterial properties can be exhibited.
- Which type of iodine-based compound is to be used may be appropriately determined in consideration of a level and a duration of required performance (e.g. an effective amount of iodine, an amount of iodine released per unit time, etc.), a temperature and a pressure during production, a use environment, and so on.
- The iodine-based compound is desired to be contained in a ratio of 0.1 to 30 parts by weight, more preferably 1 to 25 parts by weight, most preferably 5 to 25 parts by weight based on 100 parts by weight of base resins that form fiber surface layers 12 and 22, backing layers 13 and 23 and adhesive layers 14 and 24 of
mats 11 and 21. When the content of the iodine-based compound is less than 0.1 part by weight, sufficient performance may not be obtained, and when the content of the iodine-based compound is more than 30 parts by weight, the following adverse effects may arise: the effect is excessively strong, the iodine-based compound is not uniformly dispersed in a resin, the mechanical strength of fiber surface layers 12 and 22, backing layers 13 and 23 and adhesive layers 14 and 24 ofmats 11 and 21 which contain the iodine-based compound is reduced, and so on, - The allergen, reduction filler reduces an allergen amount by decomposing or adsorbing allergens such, as pollens and mite dead bodies, and a specific example thereof may be at least one selected from metal phathalocyanme compounds shown in the following formula and derivatives thereof (metal M is a metal selected, from Fe, Co, Mn, Ti, V, Ni, Cu, Zn, Mo, W and Os), and terpenoids such as a terpene hydrocarbon, a terpene alcohol, a terpene aldehyde and a terpene ketone, and clay minerals such as bentonite, montmorillonite, hidelite, hectorite, mica and talc.
- The content of the allergen reduction filler is not particularly limited, and may be appropriately determined according to a use purpose or a use form to which the present invention is applied.
- The allergen reduction filler may be contained in the following form; the radiation reduction filler is deposited on the fiber surface layer or the backing layer (in fine pores when the backing layer is an open-cell type foamed resin sheet) with an adhesive component interposed therebetween, the adhesive component being at least one selected from an emulsion selected from an acrylic resin emulsion, a modified acrylic resin emulsion and an ethylene-vinyl acetate copolymer resin emulsion, a latex selected from a styrene-butadiene rubber latex, an acrylonitrile-butadiene rubber latex and a chloroprene rubber latex, or a resin selected from an acrylic resin, an acrylic styrene resin, a urethane resin, and an epoxy resin.
- Next, fiber surface layers 12 and 22, backing layers 13 and 23 and adhesive layers 14 and 24 which contain at least one selected from an organic attenuating filler (marked as ), a radiation reduction filler (marked as ), an iodine-based compound (marked as Δ) and an allergen reduction filler (marked as Δ) will be described. As illustrated in
FIGS. 1 and 2 , the fiber surface layers 12 and 22 include pile yarndriving base fabrics 15 and 25, and pile yarns 16 and 26 driven in thebase fabrics 15 and 25. Examples of thebase fabrics 15 and 25 may include nonwoven fabrics, weaves, knits, papers and felts having as constituent fibers one or more selected from polyolefin-based fibers such as those of polypropylene and polyethylene, polyester-based fibers such as those of polyethylene terephtbalate, polyamide-based fibers such as those of nylon 6 and nylon 66, acryl-based fibers such as those of polyaerylonitrile, or synthetic fibers such as polyvinyl alcohol-based fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and hemp, and animal fibers such, as wool fibers and feather fibers, or composites obtained by combining one or more thereof. In the configuration illustrated inFIGS. 1 and 2 , nonwoven fabrics having olefin-based fibers such as polyethylene fibers and polypropylene fibers as constituent fibers are employed asbase fabrics 15 and 25. The material and structure ofbase fabrics 15 and 25 are not particularly limited, and may be appropriately determined in consideration, of a use purpose and a use state of the mat. - A configuration can be employed in which the
base fabrics 15 and 25 contain at least one of the above-described organic attenuating filler (marked as ), radiation reduction filler (marked as ), iodine-based compound (marked as Δ) and allergen reduction filler (marked as Δ), and in this case,base fabrics 15 and 25 are capable of effectively reducing energy of radiations such as α-rays or β-rays and γ-rays or X-rays, electromagnetic waves, vibrations, sounds, impacts, and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorteation properties. They may be contained in an arbitrary form, and can be included as constituent fibers ofbase fabrics 15 and 25, as a binder for bonding constituent fibers, or as a resin with which thebase fabrics 15 and 25 are coated or impregnated. - A configuration can be employed in which
base fabrics 15 and 25 containconductive fibers 18 and 28. Examples of the configuration in whichbase fabrics 15 and 25 containconductive fibers 18 and 28 may include a configuration in which the conductive fibers are contained, as a part of constituent fibers ofbase fabrics 15 and 25, and a configuration as discharge papers 17 and 27 which have a function to atmospherically discharge static electricity and are laminated integrally tobase fabrics 15 and 25 on the back surface side. Asconductive fibers 18 and 28, metal fibers such as stainless steel fibers or aluminum fibers, metal fibers obtained by forming a metal film of silver or copper on the surfaces of synthetic fibers such as those of polyethylene or polypropylene by conventional plating such as electroplating and non-electrolytic plating, fibers with a metal powder or a conductive compound powder mixed therein, carbon fibers, or fibers obtained by combining the above-described fibers. - In the case of the configuration in which
conductive fibers 18 and 28 are contained as apart of constituent fibers ofbase fabrics 15 and 25, the electric capacity ofbase fabrics 15 and 25 is increased, static electricity charged on the human body is easily conducted, and theconductive fibers 18 and 28 atmospherically discharge the static electricity. Particularly when metal fibers using a metal such as silver or copper are used asconductive fibers 18 and 28 contained inbase fabrics 15 and 25, an excellent static electricity removal function is exhibited and the antibacterial effect is further enhanced owing to metal ions such as those of silver or copper released from metal fibers. - On the other hand, in the case of the configuration as a discharge paper, for example, discharge papers 17 and 27 illustrated in
FIGS. 1 and 2 may be those produced by a wet papermaking method after mixing conductive fibers such as carbon fibers with synthetic fibers such as polyethylene fibers or polypropylene fibers, and further a wood pulp and a fibrous thermoplastic binder (e.g. polyvinyl alcohol) at a predetermined ratio, and further finely cutting the mixture through a beater to form a uniform mixture. Some of the conductive fibers are irregularly projected in a vertical or oblique direction at the surface of the paper, and these projected portions act like an antenna to atmospherically discharge static electricity. - A configuration can also be employed in which, the
base fabrics 15 and 25 contain a metal phthalocyanine compound shown in the following chemical formula or a derivative thereof. Metal M in the formula is a metal selected from Fe, Co, Ma, Ti, V, Ni, Cu, Zn, Mo, W and Os. - Examples of the configuration in which
base fabrics 15 and 25 contain a phthalocyanine compound or a derivative thereof may include those formed by mix-spinning synthetic fibers, semisynthetic fibers or natural fibers carrying a phthalocyanine compound or a derivative thereof as constituent fibers. The phthalocyanine compound or a derivative thereof has excellent deodomation and anti-allergy functions, and when thebase fabrics 15 and 25 contain a phthalocyanine compound or a derivative thereof, the obtained mat 11, is given an antibacterial effect, from the phthalocyanine compound of a derivative thereof in addition to the antibacterial effect from the iodine-based compound, and therefore has a further excellent antibacterial., deodorization and anti-allergy functions. Further, when metal fibers using a metal such as silver or copper are used in combination asconductive fibers 18 and 28 inbase fabrics 15 and 26, the base fabrics have an excellent, antibacterial effect due to triple effects from an iodine-based compound, a phthalocyanine compound or a derivative thereof and metal ions such as those of silver or copper released from metal fibers. - Examples of pile yarns 16 and 26 struck in the
base fabrics 15 and 25 may include those including yarns obtained by mix-spinning polyotein-based fibers such as those of polypropylene and polyethylene, polyester-based fibers such as those of polyethylene terephthalate, polyamide-based fibers such as those of nylon 6 and nylon 66, acryl-based fibers such as those of polyaerylonitrile, or synthetic fibers such as polyvinyl alcohol-based fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and temp, and animal fibers such as wool fibers and feather fibers alone or in combination of two or more thereof, and twisting the yarn to a predetermined thickness (e.g. about 1800 to 4000 dtex). It is more preferred to employ, as a material of pile yarns 16 and 26, a material including a polar polymer such as polyamide-based fibers because the polar polymer itself has excellent performance of attenuating energy of electromagnetic waves and the like. The pile yarns 16 and 26 are tufted tobase fabrics 15 and 25 in a predetermined volume (e.g. 5 to 10 threads for each i-inch interval) to loon fiber surface layers 12 and 22. - A configuration can be employed in which pile yarns 16 and 26 contain at least one of the above-described organic attenuating filler (marked as ), radiation reduction filler (marked, as ), iodine-based, compound (marked as Δ) and allergen reduction filler (marked as Δ). In this case, pile yarns 16 and 26 are capable of effectively reducing energy of radiations such as α-rays or β-rays and γ-rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties. They may be contained in an arbitrary form, and can be included as fibers that form pile yarns 16 and 26, or as a resin, with which the pile yarns 16 and 26 are coated or impregnated.
- A configuration can be employed in which the base fabrics 16 and 26 contain
conductive fibers 18 and 28 like thebase fabrics 15 and 25. In this case,conductive fibers 18 and 28 contained in pile yarns 16 and 26 make it easy to conduct static electricity charged on the human body, and the conductive fibers 18 atmospherically discharge the static electricity. Particularly when, metal fibers such as those of silver or copper are used asconductive fibers 18 and 28 contained in base fabrics 16 and 26, an excellent static electricity removal function is exhibited and the antibacterial effect is further enhanced owing to metal ions such as those of silver or copper released from metal fibers. - In
Mats 11 and 21 illustrated inFIGS. 1 and 2 , the back surfaces of fiber surface layers 12 and 22 are provided with precoatings 30 and 40 in order to prevent, pile yarns 16 and 26 from falling out and improve conformability with the packing layer 13 and the adhesive layer 24. For the precoatings 30 and 40, for example, a resin such as a styrene-butadiene-styrene copolymer, a styrene-emylene-butylene-styrene block copolymer, an ac-nylonitrile-butadiene-based copolymer or a urethane resin, a rubber-based resin, such as styrene-buladiene rubber, acrylonitrile-butadiene robber, butadiene rubber, natural rubber or isoprene rubber, a resin obtained by mixing two or more thereof, or the like may be used. The precoatings 30 and 40 can be formed by, for example, a method in which the aforementioned resin is sprayed in the form of an emulsion to the back surfaces of fiber surface layers 12 and 22. A configuration can be employed in which the mat of the present invention contain at least one of the above-described organic attenuating filler (marked as ), radiation reduction filler (marked as ), iodine-based compound (marked as Δ) and allergen reduction filler (marked as Δ) in the precoatings 30 and 40. In this case, precoatings 30 and 40 are capable of effectively reducing energy of radiations such as α-rays or β-rays and γ-rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties. - A configuration, can be employed in which backing layers 13 and 23 illustrated in
FIGS. 1 and 2 contain at least one of the above-described organic attenuating filler (marked as ), radiation reduction filler (marked as ), iodine-based compound (marked as Δ) and allergen reduction filler (marked as Δ). In this case, backing layers 13 and 23 are capable of effectively reducing energy of radiations such, as α-rays or β-rays and γ-rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties. - The backing layer 13 illustrated in
FIG. 1 includes a resin sheet. Examples of the resin that forms the backing layer may include polymers such as a styrene-butadiene-styrene copolymer, a styrene-ethylene-butylene-styrene block copolymer, an acrylonitrile-butadiene-based copolymer and a methane resin, rubber-based polymers such as styrene-butadiene rubber, acrylonitrile-butadiene rubber, butadiene rubber, natural rubber or isoprene rubber, and resins obtained by mixing two or more thereof. A filter, a foaming agent, a thickener and a dispersant may be added to the resin as necessary. - Examples of the filler may include sodium polyacrylates, carboxymethyl cellulose, talc, aluminum hydroxide and antimony oxide. Examples of the foaming agent include fatty acid soaps, sodium alkyklallylsulfonates, higher alcohol sulfuric acid ester sodiums and mono-amide disodium N-octadecylsulfosuccinate. Examples of the thickener include sodium polyacrylates, polyvinyl alcohol, casein and fermented polysaccharides, but low-molecular-weight sodium polyacrylates are preferred. Examples of the dispersant; may include sodium tripolyphosphate and sodium hexametaphosphate.
- A configuration can be employed in which the backing layer 13 has a foamed resin structure foamed, at a foaming, ratio of 1 to 30, has an infinite number of pores opened at the surface, contains short fibers, and has a hardness of 10 to 40 degrees. By employing the above-mentioned structure, the backing layer 13 has viscosity to dramatically increase a coefficient of friction with the floor surface, so that dislocation hardly occurs, and an effect of weight reduction can be obtained. Further, the backing layer includes a foamed resin containing short fibers, and therefore a strength that prevents the backing layer from being easily damaged by an external force applied to the mat 11.
- When the backing layer 13 of the mat 11 illustrated, in
FIG. 1 is made soft so as to have a hardness of 10 to 40 degrees, the following effect is exhibited: even if the mat 11 is dislocated forward to get caught on the accelerator pedal or the brake pedal, the tip of the mat is easily bent to quickly detach the mat from the accelerator pedal or the brake pedal, so that the possibility that the mat interferes with the accelerator pedal or the brake pedal to affect pedal operations is eliminated. When the hardness of the backing layer 13 falls out of the above-described range, either a strength capable of sufficiently resisting an external force applied to the floor mat or a softness that prevents the mat from interfering with the pedal even if the mat is dislocated cannot be obtained. - When the foaming ratio of the backing layer 13 is less than J, an effect to dramatically increase the coefficient of friction with the floor surface and reduce the weight cannot be obtained, and when the foaming ratio is more than 30, the backing layer becomes fragile, so that an external force applied to the mat may not be sufficiently resisted.
- In the case of the above-mentioned configuration, the hardness of the hacking layer 13 is adjusted to 10 to 40 degrees by including short fibers in the backing layer 13. The short fiber contained in the backing layer 13 may be at least one selected from, for example, synthetic fibers such as polyamide fibers, vinylon fibers, vinylidene fibers, polyvinyl chloride fibers, polyester fibers, acrylic fibers:, polyethylene fibers, polypropylene fibers and polychlal fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and hemp, animal fibers such as wool fibers and feather fibers, metal fibers, carbon fibers, glass fibers and ceramic fibers. When short fibers are mixed in the backing layer, not only the hardness is adjusted, but also sound absorbency becomes higher because an infinite number of spaces are formed in the foamed resin layer. The fiber diameter and fiber length of short fibers contained in the backing layer are not particularly limited, but the fiber diameter is 10 dtex or less, preferably 5 dtex, most preferably 5 dtex or less, and the fiber length is 1 mm or less, preferably 0.1 mm or less, most preferably 0.01 mm in that the fibers can be uniformly dispersed in a resin that forms the backing layer.
- A configuration can also be employed in which the backing layer 13 contains a crosslinker such as, for example, divinyl benzene, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, triacrylformal, trimethylolpropane trimethacrylate, allyl methacrylate, 1,3-butyl glycol dimethacrylate, triallyl isocyanate, pentaerythritol tetraacrylate, dipentaerythritol tetramethacrylate, dipentaerythritol hexaacrylate or dipentaerythritol hexamethacrylate. This enables the foamed resin structure of the backing layer 13 to be further strengthened.
- The content of the crosslinker is not limited, but is preferably 0.1 to 2 parts by mass, more preferably 0.1 to 1.5 parts by mass based on 100 parts by mass of the base resin.
- The backing layer 13 has a through-hole 19 extending therethrough in the front/rear direction, and locking
projections 20 for preventing dislocation are provided on the back, surface side. Lockingprojections 20 are not particularly limited, but for example, as illustrated inFIGS. 3 to 25 , portions having no locking force or portions having a small locking force as compared to other portions can be formed on the circumferential surfaces of a large number of lockingprojections 20 for preventing dislocation on the back surface side of the backing layer 13 such that the portions having no locking force or the portions having a small locking force as compared to other portions in the lockingprojections 20 face in a fixed direction. For example, in the case where a mat having the above-mentioned configuration is applied to a floor mat to be laid on the floor surface of an automobile, when the mat is provided such that portions having no locking force or portions having a small locking force as compared to other portions in the lockingprojections 20 face in a direction opposite to the traveling direction of the automobile, the locking force of the locking projections acts in the traveling direction of the automobile, and therefore even, when a load is applied in the traveling direction of die automobile by a driver or a passenger during driving, the locking projections effectively suppress dislocation of the mat by resiting the force. - On the other hand, portions having no locking force or portions having a small Socking force as compared to other portions in the locking
projections 20 face in a direction opposite to the traveling direction of the automobile, and therefore the locking force of the locking projections does not act in this direction, so that removal and position adjustment of the mat can be smoothly performed. - The locking
projection 20 illustrated inFIGS. 3 to 6 is substantially conical, a part of the circumferential surface thereof is cut out from the top to the bottom of the locking projection, and a portion having no locking force is formed by the cut portion 20 a. The configuration illustrated inFIGS. 3 to 6 shows an example in which the mat 11 of the present invention is applied to a floor mat of an automobile, where the lockingprojections 20 of the back surface of the backing layer 13 are arranged such that cut portions 20 a having no locking force face toward the rear side of the automobile when the mat 11 is laid on the automobile floor surface. Therefore, when a load is applied in the traveling direction of the automobile (direction toward the front side) by a driver or a passenger during achieving, the lockingprojections 20 bite into the carpet of the automobile floor surface to lock the carpet, so that dislocation of the mat is reliably prevented. - On the other hand, when the mat is drawn toward the rear side for laying the mat at a predetermined position on the floor surface, the mat can be smoothly position-adjusted because cut portions 20 a formed, on the circumferential surfaces of the locking
projections 20 and having no locking force are arranged to face toward the rear side. - In the configuration illustrated in
FIGS. 7 to 10 , a large number of substantiallyconical locking projections 20 are formed on the hack surface of the backing layer 13, a part of the circumferential surface of the locking projection is cut out from almost the center to the bottom of the locking projection, and the cut portion 20 a has a reduced height as compared to other portions and has an accordingly smaller locking force. - In the configuration illustrated in
FIGS. 11 to 13 , a large number of star-like spindle-shapedlocking projections 20 are formed on the back surface of the backing layer 13, a part, of the circumferential surface of the locking projection is cut out from the top to the bottom of the locking projection, and a portion having no locking force is formed by the cut portion 20 a. - In the configuration illustrated in
FIGS. 14 to 17 , a large number of star-like spindle-shapedlocking projections 20 are formed on the back surface of the backing layer 13, a part of the circumferential surface of the locking projection is cut out from almost the center to the bottom of the locking projection, and the cut portion 20 a has a reduced height as compared to other portions and has an accordingly smaller locking force. - In the configuration illustrated in
FIGS. 18 to 21 , a large number of lockingprojections 20 are provided, on the back surface side of the backing layer 13, and a plurality of locking pieces 20 b are formed on the circumferential surface of each lockingprojection 20. In the configuration illustrated inFIGS. 18 to 21 , a portion having no locking piece 20 b is formed on the circumferential surface of the lockingprojection 20, and this portion, forms a portion having no locking force. - In the configuration illustrated in
FIGS. 22 to 25 , a large number of locking pieces 20 b are formed on the circumferential surface of each lockingprojection 20 of the backing layer 13, a locking piece 20 c having a reduced height as compared to the locking piece 20 b is formed, on a part of the circumferential surface of the lockingprojection 20, and the cut piece 20 c has a reduced height as compared, to other portions and has an accordingly smaller locking force. - The
backing layer 23 in themat 21 illustrated inFIG. 2 is a fiber sheet including a felt, a weave, a knit or a nonwoven fabric having as constituent fibers one or more selected from polyolefin-based fibers such as those of polypropylene and polyethylene, polyester-based fibers such as those of polyethylene merephthalate, polyamide-based fibers such, as those of nylon 6 and nylon 66, acryl-based fibers such as those of polyaerylonitrile, or synthetic fibers such as polyvinyl alcohol-based fibers, regenerated fibers such as rayon fibers, semisynthetic fibers such as acetate fibers, vegetable fibers such as those of cotton and hemp, animal fibers such as wool fibers and feather fibers, metal fibers, carbon fibers, glass fibers and ceramic fibers, or a composite thereof. - A lining material 29 for preventing dislocation is attached on the back surface side of the
backing layer 23. The lining material 29 is not particularly limited, and examples thereof may include those including a pile knitted product or a pile woven, product knitted or woven using a loop-shaped pile yarn formed of a monofilament, wherein the loop-shaped pile yarn is cut, and the cot end thereof is projected as a locking portion that locks the floor surface. For example, the lining material 29 illustrated inFIG. 2 is a knit formed by cutting a loop-shaped warp that connects the surface and the back surface of a warp knitting weft-inserted knit (not illustrated), with a cut end 29 a of the warp being projected as a locking portion to exhibit a dislocation prevention function. - A configuration can also be employed in which the lining material 29 has its cut end inclined and projected in one direction as a locking portion that locks the floor surface. For example, in the example illustrated in
FIGS. 26 and 27 , a loop-shapedpile yarn 50 is formed by weaving two monofilaments in a diamond shape into a base knitted fabric formed of a ground yarn, and the tip of the loop-shapedpile yarn 50 is cut, whereby two cut ends 50 a are inclined in the knitting direction and eachcut end 50 a is opened in substantially a V shape. For reliably inclining cut ends 50 a in a fixed direction, a pile knitted product or pile woven product having a loop-shaped pile yarn whose tip is cut (or a pile knitted product or pile woven, product having a loop-shaped pile yarn whose tip is not cut is acceptable) is placed on a heat plate with the cut end (loop-shaped pile yarn) situated on the lower side, and heat-treated while being pressed obliquely rearward from above, whereby the cut end (loop-shaped pile yarn) can be inclined in a fixed direction, and its shape can be fixed. - In the lining material 29 of the
mat 21 illustrated inFIGS. 26 and 27 , the cut end 50 a of the loop-shapedpile yarn 50 is inclined only in one direction. Thus, for example, in the case where themat 21 is used as a floor mat of an automobile, when the lining material 29 is attached to themat 21 such that the cut end 50 a of the loop-shapedpile yarn 50 is inclined and projected toward the front side of the automobile, the cut end 50 a of the loop-shapedpile yarn 50 bites into the automobile floor surface (carpet) and acts as a locking portion even when a load is applied in the traveling direction, of the automobile by a driver or a passenger during driving as illustrated inFIG. 28 , so that dislocation of themat 21 is reliably prevented. In an opposite direction (direction toward the rear side of the automobile), the cut end 50 a does not bite into the automobile floor surface (carpet), and therefore does not act as a locking portion, so that detachment and position adjustment of the mat can be smoothly performed. - As another configuration, as a lining material in which cut ends of loop-shaped pile yarns are inclined and projected in one direction as locking portions that lock the floor surface, a lining material 29 a having a fine density of loop-shaped pile yarns and a lining material 29 b having coarse density of loop-shaped pile yarns can be provided as illustrated in
FIG. 29 , followed by attaching these two lining materials 29 a and 29 b to the back surface of the mat. For example when the mat is applied to a floor mat of an automobile, the lining material 29 a having a fine density is attached on the front side of the mat, and the lining material 29 b having a coarse density is attached on the rear side of the mat. When the mat is laid on the floor surface (carpet), a heavy load is applied on the front side of the mat by a driver or a passenger during driving, bin the lining material 29 a having a fine density of loop-shaped pile yarns has a high density and hence a large locking force, so that the heavy load can be resisted. On the other hand, the lining material 29 b having a coarse density of loop-shaped pile yarns has a low density and hence a small locking force, so that, position adjustment of the mat can be smoothly performed. - As illustrated in
FIGS. 1 and 2 , the fiber surface layers 12 and 22 (base fabrics 13 and 25) and backing layers 13 and 23 are bonded with adhesive layers 14 and 24 interposed therebetween. The adhesive layers 14 and 24 include a hot melt resin. As the hot melt, resin, a polyamide-based hot melt resin, a polystyrene-based hot melt resin, a polyethylene-based hot melt resin, an EVA-based hot melt resin and the like can be suitably used. The hot melt resin can be interposed between the fiber surface layers 12 and 22 (base fabrics 15 and 25) and the backing layers 13 and 23 in the form of a cobweb-like film. The hot melt resin can also be added in the form of an emulsion between both the layers. In the case of the mat 11 illustrated inFIG. 1 , the adhesive layer can be omitted by thermocompression-bonding the serail-molten backing layer 13 to the fiber surface layer 12 to infiltrate a part of the backing layer 13 info the fiber surface layer 12 to be solidified. - A configuration can be employed in which the adhesive layers 14 and 24 contain any one of the above-described organic attenuating filler (marked as radiation reduction, filler (marked, as ), iodine-based compound (marked as Δ) and allergen reduction filler (marked as Δ). In this case, adhesive layers 14 and 24 are capable of effectively reducing energy of radiations such as α-rays or β-rays and γ-rays or X-rays, electromagnetic waves, vibrations, sounds, impacts and so on, and have excellent antibacterial properties, antiviral, properties, anti-allergen properties and deodorization properties.
- The scope of the present invention is as defined in “claims”, and all modifications and modes included in claims may be employed.
- A mat 11 illustrated in
FIG. 1 includes a pile yarndriving base fabric 15 including a nonwoven fabric containing a metal phthalocyanine compound or a derivative thereof and silver-plated conductive fibers, and a fiber surface layer 12 including the pile yarndriving base fabric 15, wherein a pile yarn 16 containing silver fibers 18 is driven in the pile yarndriving base fabric 15. - A precoating 14 containing octylated diphenylamine as an organic attenuating filler (marked as ) and 1-(diiodomethylsulfonyl)-4-methylbenzene as an iodine-based compound (marked as Δ) is provided on the back surface side of the fiber surface layer 12, and a backing layer 13 including a foamed resin sheet having an open-cell structure including hemp short fibers with a styrene-ethylene-butylene-styrene block copolymer as abase is formed on the back surface side of the fiber surface layer 12 with the precoating 14 interposed therebetween. A large number of through-holes 19 and
projections 20 for preventing dislocation are formed on the backing layer 13. The fiber surface layer 12 contains a radiation reduction filler (marked as ) and an allergen reduction filler (marked as Δ). - For the mat described above, electromagnetic wave attenuation properties were evaluated. Evaluation of electromagnetic wave attenuation properties was performed by measuring electromagnetic wave attenuation properties (dB) in a frequency range of 1 MHz to 1 GHz by a KEC method (near electric field, near magnetic field (MA 8602B manufactured by ANRITSU CORPORATION)) using a spectrum analyzer (R3132 manufactured by ADVANTEST CORPORATION). The results are shown, in
FIG. 30 . For comparison, electromagneticwave attenuation properties (dB) were measured to evaluate the electromagnetic wave attenuation properties also/or a blank mat (where a fiber surface layer formed by driving a predetermined volume of pile yarns, which did not contain silver fibers, in a pile yarn driving base fabric which did not contain a metal phthalocyanine compound or a derivative thereof was provided, a precoating which did not contain an organic attenuating filler (marked as ) and an iodine-based compound (marked as Δ) was provided on the back surface side of the fiber surface layer, and a backing layer including a foamed resin sheet as described above was formed on the back side). - The graph of
FIG. 30 shows that for the blank mat, attenuation of electromagnetic waves in a frequency range of 1 MHz to 1 GHz was not observed, while for the mat according to Example, electromagnetic waves in a frequency range of 1 MHz to 300 MHz, for which evaluation was performed, among electromagnetic waves in a frequency range of 30 to 300 MHz which are supposed to be easily absorbed in the human body, were absorbed at a rate of 90 to 99.7%. Also, the mat of Example showed an absorption ratio of 90% for electromagnetic waves at a frequency of 1 GHz which are associated with carcinogenicity and supposed to likely cause malfunction of electronic devices, and therefore it was confirmed that the mat according to Example was excellent in electromagnetic wave attenuation properties. - For the mat according to Example, antibacterial effects were evaluated. Antibacterial effects were evaluated by inoculating the mat illustrated in
FIG. 2 and the blank mat by immersing the mats in bacterial solutions containing Staphylococcus aureus, Streptococcus pneumoniae and MRSA, respectively, and counting the number of living bacteria immediately after inoculation and after 18 hours of culture. For the mat illustrated inFIG. 2 , antibacterial effects after washing 5 times were also evaluated. The antibacterial effects on Staphylococcus aureus, Streptococcus pneumoniae and MRSA for the mat illustrated inFIG. 2 and the blank mat are shown inFIGS. 31 to 33 . - From
FIGS. 31 to 33 , the numbers of bacteria (real number) after 18 hours of culture for Staphylococcus aureus, Streptococcus pneumoniae and MRSA are 12,589,254, 31,622,77 and 12,589,254, respectively, in the case of the blank mat, while in the ease of the mat according to Example, the numbers of bacterial (real number) after 18 hours of culture for the above-described bacteria are 20 or less, 20 or less and 32, respectively, and the numbers of bacterial (real number) after washing 5 times after 18 hours of culture were 20 or less for all of the above-described bacteria, and therefore it has been confirmed that the mat of Example has an excellent antibacterial effect. - The present invention proposes a mat which is capable of significantly contributing to sound and healthy life environment and particularly capable of effectively reducing energy of electromagnetic waves, vibrations, sounds, impacts, radiations, radiations and so on and which, has excellent antibacterial properties, antiviral properties, anti-allergen properties and deodorization properties. The mat can be suitably applied to carpets to be laid in rooms, chair mats for operations of computers, floor surface mats to be laid on entrances of rooms, door mats, floor surface mats to be laid in elevators or in front of opening/closing doors of elevator halls, and floor mats to be laid in cabins of automobiles, trains and airplanes, particularly floor mats to be laid, in cabins of hybrid cars and EV cars for which, it is required to take measures against impacts of electromagnetic waves, for example malfunction of vehicle-mounted instruments and health hazards.
- 12, 22: Fiber surface layer
- 13, 23: Backing layer
- 14, 24: Adhesive layer
- 15, 25: Base fabric
- 16, 26: Pile yarn
- 18, 28: Conductive fiber
Claims (20)
Applications Claiming Priority (5)
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JP2011-157317 | 2011-07-18 | ||
JP2011157317 | 2011-07-18 | ||
JP2011-213648 | 2011-09-29 | ||
JP2011213648 | 2011-09-29 | ||
PCT/JP2012/004276 WO2013011643A1 (en) | 2011-07-18 | 2012-07-02 | Mat |
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PCT/JP2012/004276 Continuation-In-Part WO2013011643A1 (en) | 2011-07-18 | 2012-07-02 | Mat |
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US20140134387A1 true US20140134387A1 (en) | 2014-05-15 |
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US14/158,288 Abandoned US20140134387A1 (en) | 2011-07-18 | 2014-01-17 | Mat |
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EP (1) | EP2735251B1 (en) |
JP (2) | JPWO2013011643A1 (en) |
TW (1) | TWI610810B (en) |
WO (1) | WO2013011643A1 (en) |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100173120A1 (en) * | 2009-01-08 | 2010-07-08 | Beaulieu Group, Llc | Carpet Tile Having Antimicrobial Properties and Method of Manufacturing the Same |
JP2015186868A (en) * | 2014-03-27 | 2015-10-29 | クラレトレーディング株式会社 | Laminated fabric, and skin material comprising laminated fabric |
US11078626B2 (en) * | 2014-05-08 | 2021-08-03 | Stora Enso Oyj | Method of making a thermoplastic fiber composite material and web |
CN107523067A (en) * | 2016-06-15 | 2017-12-29 | 现代自动车株式会社 | fibre structure with halogen-free polymer layer |
US20190323172A1 (en) * | 2016-06-27 | 2019-10-24 | Dsm Ip Assets B.V. | A method to produce a laminated textile product |
US11084267B2 (en) * | 2016-06-27 | 2021-08-10 | Covestro (Netherlands) B.V. | Method to produce a laminated textile product |
WO2020041525A1 (en) * | 2018-08-21 | 2020-02-27 | Auria Solutions Uk I Ltd. | Warp-knit structure suitable for vehicular accessory mat or cargo management system |
US20200208309A1 (en) * | 2018-12-31 | 2020-07-02 | Hyundai Motor Company | Pile knit fabric for interior materials of vehicles, method of manufacturing the same and manufacturing machine of pile knit fabric |
US20200406803A1 (en) * | 2019-06-27 | 2020-12-31 | GM Global Technology Operations LLC | Floor carpet with electromagnetic shielding |
US11011045B1 (en) | 2019-11-01 | 2021-05-18 | Honda Motor Co., Ltd. | Object detection and alert for autonomous ride-sharing vehicle |
US11358078B2 (en) | 2019-11-01 | 2022-06-14 | Honda Motor Co., Ltd. | Conductive thread for vehicle maintenance |
US11458816B2 (en) | 2019-11-01 | 2022-10-04 | Honda Motor Co., Ltd. | Self cleaning of ride sharing vehicle |
Also Published As
Publication number | Publication date |
---|---|
EP2735251A4 (en) | 2015-09-02 |
JP2013081756A (en) | 2013-05-09 |
TW201304957A (en) | 2013-02-01 |
EP2735251A1 (en) | 2014-05-28 |
TWI610810B (en) | 2018-01-11 |
JPWO2013011643A1 (en) | 2015-02-23 |
EP2735251B1 (en) | 2018-04-25 |
WO2013011643A1 (en) | 2013-01-24 |
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