JP2001303754A - Non-slip sheet for tatami mat lining - Google Patents
Non-slip sheet for tatami mat liningInfo
- Publication number
- JP2001303754A JP2001303754A JP2000118803A JP2000118803A JP2001303754A JP 2001303754 A JP2001303754 A JP 2001303754A JP 2000118803 A JP2000118803 A JP 2000118803A JP 2000118803 A JP2000118803 A JP 2000118803A JP 2001303754 A JP2001303754 A JP 2001303754A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- slip sheet
- tatami
- weight
- tatami mat
- 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.)
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Links
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、畳裏貼り用滑り止
めシートに関する。さらに詳しくは、住宅のフローリン
グ等に敷いて用いる置き畳等の裏貼り用として使用され
る滑り止めシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-slip sheet for attaching a tatami back. More specifically, the present invention relates to a non-slip sheet used as a backing for a tatami mat or the like which is laid on a flooring or the like of a house.
【０００２】[0002]
【従来の技術】近年、特にマンション等の住宅におい
て、生活の洋風化の傾向から部屋が洋間となり床のフロ
ーリング（木床）化が進んでいるが、洋間を日本間的な
空間に変えて使用する敷物として置き畳等の使用が流行
している。このような置き畳は通常床に固定されていな
いので使用中に移動しやすく、あるいは、その上を人が
歩行して蹴り作用が加わると置き畳自体が床面上を滑っ
て動き人が転倒するなどの危険性もあった。また、体育
館などの床面に敷かれた畳の上で柔道などのスポーツが
行われると畳が動いて移動し、競技に支障をきたすなど
の問題もあった。2. Description of the Related Art In recent years, especially in condominiums and other dwellings, rooms have been converted to Western-style floors (wooden floors) due to the tendency of westernization of life. The use of tatami mats and the like as rugs is becoming popular. Such tatami mats are not usually fixed to the floor, so they are easy to move during use, or if a person walks on it and a kicking action is applied, the tatami mat itself slides on the floor surface and the person falls down There was also a danger of doing it. In addition, when sports such as judo are performed on tatami mats laid on the floor of a gymnasium or the like, the tatami mats move and move, and there is a problem that the game is hindered.
【０００３】これまで、このような畳等の裏貼り用滑り
止めシートとして種々のシートが用いられているが、例
えば、発泡ポリエチレンシートは嵩高となるうえに滑り
止め効果は十分でなく、ポリ塩化ビニルシートは廃棄焼
却時に有毒ガスが発生するという問題があり、スパンボ
ンド不織布にポリオレフィンからなるラミネート層を設
けたシートは引裂強度が弱いなどの問題があり、いまだ
に満足できる畳裏貼り用滑り止めシートは見いだされて
いなかった。Until now, various sheets have been used as a non-slip sheet for backing such as tatami mats. For example, a foamed polyethylene sheet is bulky and does not have a sufficient anti-slip effect. Vinyl sheets have a problem that toxic gas is generated during waste incineration, and sheets with a laminated layer made of polyolefin on spunbonded nonwoven fabric have problems such as low tear strength, and are still satisfactory non-slip sheets for tatami mats. Had not been found.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記の問題
点に着目してなされたもので、高強力で成形性にすぐ
れ、焼却時に有毒ガス発生の恐れもなく、滑り止め効果
の高い畳裏貼り用滑り止めシートの提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is a tatami mat having a high strength, excellent moldability, no toxic gas generation during incineration, and a high anti-slip effect. The purpose is to provide a non-slip sheet for backing.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明の畳裏貼り用滑り止めシートは、熱可塑性樹
脂製延伸糸からなる織編布の片面に接着層を介してクラ
フト紙を積層し、他の片面に下記ａ）、ｂ）成分の組成
物からなるラミネート層を設けた構成からなるものであ
る。 ａ）密度が０.９１〜０.９４ｇ／ｃｍ３のポリエチレン
５０〜９０重量％、 ｂ）エチレン−ビニルエステル共重合体、エチレン-α,
β-不飽和カルボン酸アルキルエステル共重合体及びゴ
ムから選択された少なくとも１種１０〜５０重量％。Means for Solving the Problems In order to achieve the above-mentioned object, a non-slip sheet for attaching to a tatami backing according to the present invention comprises a woven or knitted fabric made of a drawn yarn made of a thermoplastic resin and kraft paper interposed on one surface of the woven or knitted fabric via an adhesive layer. It has a configuration in which a laminate is formed and a laminate layer made of a composition of the following components a) and b) is provided on the other side. a) 50 to 90% by weight of polyethylene having a density of 0.91 to 0.94 g / cm 3 , b) ethylene-vinyl ester copolymer, ethylene-α,
10 to 50% by weight of at least one selected from a β-unsaturated carboxylic acid alkyl ester copolymer and rubber.
【０００６】[0006]
【発明の実施の形態】以下、本発明を詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
【０００７】本発明に用いられる織編布は、熱可塑性樹
脂製の延伸糸を経緯糸に用いて織編成したものである。
熱可塑性樹脂としては、延伸糸として高強力の得られる
ものであればよく、例えば、ポリオレフィン、ポリエス
テル、ナイロンなどが挙げられる。これらのうちでは安
価で成形性にすぐれたポリオレフィンが好ましく、具体
的には延伸効果の得られる高密度ポリエチレン、ポリプ
ロピレンが好ましい。The woven or knitted fabric used in the present invention is formed by weaving and knitting using drawn yarns made of a thermoplastic resin as warp yarns.
Any thermoplastic resin may be used as long as it has high strength as a drawn yarn, and examples thereof include polyolefin, polyester, and nylon. Among these, polyolefins that are inexpensive and have excellent moldability are preferred, and high-density polyethylenes and polypropylenes that can obtain a stretching effect are specifically preferred.
【０００８】また、延伸糸の形態としては、モノフィラ
メント、マルチフィラメント、フラットヤーン、スプリ
ットヤーンなどいずれも使用できるが、成形性、平滑性
の点からフラットヤーンが好ましい。延伸糸の製造方法
は特に限定されるものではなく、公知の技術を採用すれ
ばよい。As the form of the drawn yarn, any of a monofilament, a multifilament, a flat yarn, a split yarn and the like can be used, but a flat yarn is preferred in view of formability and smoothness. The method for producing the drawn yarn is not particularly limited, and a known technique may be employed.
【０００９】上記延伸糸の繊度としては、１００〜２０
００デシテクス（以下、dtと記載）が好ましく、３００
〜１０００dtがより好ましい。繊度が１００dt未満では
織編布として引裂強度などの機械的特性が不充分とな
り、２０００dtを超えると柔軟性が劣り、さらにラミネ
ート層との接着が不充分となり好ましくない。The fineness of the drawn yarn is 100 to 20
00 dtex (hereinafter referred to as dt) is preferable, and 300 dtex is preferable.
~ 1000dt is more preferred. If the fineness is less than 100 dt, the mechanical properties such as tear strength become insufficient as a woven or knitted fabric, and if it exceeds 2000 dt, the flexibility is poor and the adhesion to the laminate layer is insufficient, which is not preferable.
【００１０】上記延伸糸を経緯糸に用いて織編成し織編
布を形成する。打込密度は１０〜３０本／２.５４ｃｍ
が好ましく、１５〜２０本／２.５４ｃｍがより好まし
い。織布の織組織としては、平織、綾織、絡み織、模紗
織など種々の形状が使用され、編布としては、横編み、
縦編みいずれでもよく、具体的にはトリコット編、ミラ
ニーズ編、ラッセル編等が挙げられる。織編布の坪量
は、５０〜３００ｇ／ｍ２が好ましく、１００〜２００
ｇ／ｍ２がより好ましい。坪量が５０ｇ／ｍ２未満では
引裂強度などの機械的強力が劣り、３００ｇ／ｍ２を超
えると重量が増加して取り扱い性が劣るとともに柔軟性
が低下して好ましくない。The drawn yarn is woven and knitted using the warp yarn to form a woven or knitted fabric. Driving density is 10-30 / 2.54cm
Is preferable, and 15-20 / 2.54 cm is more preferable. Various shapes such as plain weave, twill weave, entangled weave and mosaic weave are used as the weave structure of the woven fabric.
Any of vertical knitting may be used, and specific examples include tricot knitting, Miranese knitting, and Russell knitting. The basis weight of the woven or knitted fabric is preferably 50 to 300 g / m 2 , and 100 to 200 g / m 2.
g / m 2 is more preferred. When the basis weight is less than 50 g / m 2 , mechanical strength such as tear strength is poor, and when the basis weight is more than 300 g / m 2 , the weight is increased, handleability is deteriorated, and flexibility is undesirably lowered.
【００１１】本発明に用いられるクラフト紙は、とくに
限定されるものではなく通常用いられるもので、坪量が
６０〜９０ｇ／ｍ２の範囲のものが好適に用いられる。The kraft paper used in the present invention is not particularly limited, and is usually used. A kraft paper having a basis weight in the range of 60 to 90 g / m 2 is preferably used.
【００１２】本発明のａ）成分として使用される密度が
０.９１〜０.９４ｇ／ｃｍ３のポリエチレンとは、高圧
法による低密度ポリエチレン、直鎖状低密度ポリエチレ
ン、メタロセン触媒によるエチレン・α−オレフィン共
重合体から選択された少なくとも１種である。α−オレ
フィンとしては、プロピレン、１−ブテン、１−ヘキセ
ン、１−オクテンなどが挙げられる。上記ポリエチレン
のＭＦＲは１〜２０ｇ／１０ｍｉｎ程度が好ましい。The polyethylene having a density of 0.91 to 0.94 g / cm 3 used as the component a) in the present invention includes low-density polyethylene by a high-pressure method, linear low-density polyethylene, and ethylene / α by a metallocene catalyst. -At least one selected from olefin copolymers. Examples of the α-olefin include propylene, 1-butene, 1-hexene, 1-octene and the like. The MFR of the polyethylene is preferably about 1 to 20 g / 10 min.
【００１３】本発明のｂ）成分として使用されるエチレ
ン−ビニルエステル共重合体は、高圧ラジカル重合法で
製造されるエチレンを主成分とする酢酸ビニル、プロピ
オン酸ビニルなどのビニルエステル単量体との共重合体
である。これらの中ではエチレン−酢酸ビニル共重合体
が好ましい。酢酸ビニルの含有量は１〜４０重量％から
なる共重合体が好ましい。The ethylene-vinyl ester copolymer used as the component (b) of the present invention is composed of a vinyl ester monomer such as vinyl acetate and vinyl propionate having ethylene as a main component produced by a high-pressure radical polymerization method. Is a copolymer of Among these, an ethylene-vinyl acetate copolymer is preferred. The copolymer containing 1 to 40% by weight of vinyl acetate is preferable.
【００１４】本発明のｂ）成分として使用されるエチレ
ン−α,β−不飽和カルボン酸アルキルエステルまたは
その誘導体との共重合体としては、エチレン−α,β−
不飽和カルボン酸エステル共重合体、およびそれらの金
属塩等が挙げられるが、これらは好ましくは高圧ラジカ
ル重合法で製造される。具体的にはエチレン−（メタ）
アクリル酸メチル共重合体、エチレン−（メタ）アクリ
ル酸エチル共重合体等が挙げられ、特にエチレン−アク
リル酸エチル共重合体が好ましい。アクリル酸エチルエ
ステルの含有量は１〜４０重量％からなる共重合体が好
ましい。The copolymer of ethylene-α, β-unsaturated carboxylic acid alkyl ester or a derivative thereof used as the component (b) of the present invention includes ethylene-α, β-
Examples thereof include unsaturated carboxylic acid ester copolymers and metal salts thereof, and these are preferably produced by a high-pressure radical polymerization method. Specifically, ethylene- (meth)
Examples thereof include a methyl acrylate copolymer and an ethylene-ethyl (meth) acrylate copolymer, and an ethylene-ethyl acrylate copolymer is particularly preferable. A copolymer having a content of ethyl acrylate of 1 to 40% by weight is preferable.
【００１５】本発明のｂ）成分として使用されるゴムと
しては、エチレンプロピレン系ゴム、ブタジエン系ゴ
ム、イソプレン系ゴム、天然ゴムなどが挙げられ、これ
らは単独でも混合物でもよい。これらのうちではエチレ
ンプロピレン系ゴムが好ましい。The rubber used as the component (b) in the present invention includes ethylene propylene rubber, butadiene rubber, isoprene rubber and natural rubber, and these may be used alone or as a mixture. Of these, ethylene propylene rubber is preferred.
【００１６】上記ｂ）成分としてはエチレン−ビニルエ
ステル共重合体、エチレン-α,β-不飽和カルボン酸ア
ルキルエステル共重合体及びゴムから選択された少なく
とも１種であって、これらのうちでは、柔軟性、耐熱性
の点から、エチレン−アクリル酸エチル共重合体が最も
好ましい。The component (b) is at least one selected from ethylene-vinyl ester copolymers, ethylene-α, β-unsaturated carboxylic acid alkyl ester copolymers, and rubbers. From the viewpoint of flexibility and heat resistance, an ethylene-ethyl acrylate copolymer is most preferable.
【００１７】上記ａ）成分、ｂ）成分の配合割合は、
ａ）成分５０〜９０重量％、ｂ）成分１０〜５０重量％
であり、ａ）成分６０〜８０重量％、ｂ）成分２０〜４
０重量％がより好ましい。ａ）成分が５０重量％未満で
は引裂強度などの機械的特性に劣り、９０重量％を超え
ると滑り止め効果が低下するので好ましくない。The mixing ratio of the components a) and b) is as follows:
a) 50 to 90% by weight of component, b) 10 to 50% by weight of component
A) 60-80% by weight of component, b) component 20-4
0% by weight is more preferred. If component (a) is less than 50% by weight, mechanical properties such as tear strength are poor, and if component (A) exceeds 90% by weight, the anti-slip effect is undesirably reduced.
【００１８】本発明において畳裏貼り用滑り止めシート
を製造する方法としては、第１の方法として、前記熱可
塑性樹脂延伸糸からなる織編布の片面に前記ａ）、ｂ）
成分からなる組成物を用いて、押出ラミネート法により
ラミネート層を設けた積層体を形成し、つぎに該積層体
の織編布面とクラフト紙を接着剤による接着層を介して
積層するか、あるいは織編布とクラフト紙の間にサンド
イッチラミネート法により接着層を設けて積層体を形成
する方法である。サンドイッチラミネート法に使用する
樹脂は低密度ポリエチレンなど、通常サンドイッチラミ
ネート法に使用される樹脂であれば特に限定されるもの
ではない。第２の方法としては、織編布の片面にクラフ
ト紙を前記同様に積層して積層体を形成し、つぎに、該
積層体の織編布面に前記ａ）、ｂ）成分からなる組成物
を用いて、押出ラミネート法によりラミネート層を設け
て畳裏貼り用滑り止めシートを形成する方法である。こ
れらの方法のうちでは、前者が好ましい。In the present invention, as a method for producing the non-slip sheet for tatami backing, as a first method, a) and b) are applied to one side of a woven or knitted fabric made of the drawn thermoplastic resin yarn.
Using the composition comprising the components, to form a laminate provided with a laminate layer by extrusion lamination method, and then laminate the woven and knitted fabric surface of the laminate and kraft paper via an adhesive layer by an adhesive, Alternatively, this is a method in which an adhesive layer is provided between a woven or knitted fabric and kraft paper by a sandwich lamination method to form a laminate. The resin used in the sandwich laminating method is not particularly limited as long as it is a resin usually used in the sandwich laminating method, such as low-density polyethylene. As a second method, a kraft paper is laminated on one surface of a woven or knitted fabric in the same manner as described above to form a laminate, and then a composition comprising the components a) and b) is formed on the woven or knitted fabric of the laminate. This is a method of forming a non-slip sheet for tatami backing by providing a laminate layer by extrusion lamination using a material. Of these methods, the former is preferred.
【００１９】上記ラミネート層の厚みとしては、５０〜
２００μｍが好ましく、８０〜１２０μｍがより好まし
い。厚みが５０μｍ未満では耐摩耗性が不十分となり、
２００μｍを超えても防滑性はそれ以上向上せず、重量
も増加して不経済となる。The thickness of the laminate layer is 50 to 50.
200 μm is preferable, and 80 to 120 μm is more preferable. If the thickness is less than 50 μm, the wear resistance becomes insufficient,
Even if the thickness exceeds 200 μm, the slip resistance is not further improved, and the weight increases, which is uneconomical.
【００２０】このようにして得られた畳裏貼り用滑り止
めシートは、クラフト紙面を畳の裏面に接着剤を用いて
貼着されて滑り止めシートとして使用される。The thus obtained non-slip sheet for pasting the tatami mat back is used as an anti-slip sheet by sticking the kraft paper surface to the back of the tatami mat using an adhesive.
【００２１】本発明に用いられる熱可塑性樹脂には、本
発明の趣旨を逸脱しない範囲において、酸化防止剤、紫
外線吸収剤、光安定剤、滑剤、帯電防止剤、顔料、難燃
剤、無機充填剤、核剤、発泡剤、分散剤等の添加剤を配
合してもよい。The thermoplastic resin used in the present invention contains an antioxidant, an ultraviolet absorber, a light stabilizer, a lubricant, an antistatic agent, a pigment, a flame retardant, an inorganic filler, without departing from the spirit of the present invention. And additives such as a nucleating agent, a foaming agent and a dispersant.
【００２２】[0022]
【発明の効果】以上説明したように、本発明の畳裏貼り
用滑り止めシートは、特定の樹脂組成物からなるラミネ
ート層を設けているため、高強力で成形性にすぐれ、焼
却時に有毒ガス発生の恐れもなく、滑り止め効果にすぐ
れ、住宅のフローリングに設置される置き畳や体育館な
どに敷設される畳などの裏貼り用としてすぐれた効果を
奏するものである。As described above, the non-slip sheet for tatami backing according to the present invention is provided with a laminate layer made of a specific resin composition, and therefore has high strength and excellent moldability, and has a toxic gas during incineration. There is no danger of occurrence, and it has an excellent anti-slip effect, and has an excellent effect as a backing for tatami mats installed in house floors and tatami mats laid in gymnasiums and the like.
【００２３】[0023]
【実施例】高密度ポリエチレンフラットヤーン（繊度７
８０dt）を経緯糸に用いて、打込密度１４×１４本／
２.５４ｃｍで平織の織布２を得た。一方、ラミネート
層用樹脂として、低密度ポリエチレン（ＭＦＲ＝２.０
ｇ／１０ｍｉｎ、密度＝０.９２２ｇ／ｃｍ３）８０重
量％、エチレン−アクリル酸エチル共重合体（アクリル
酸エチル含有量２５重量％）２０重量％からなる組成物
を用意した。前記織布２の片面に、上記組成物を用いて
押出ラミネート法により厚さ１００μｍでラミネート層
３を積層し積層体を得た。つぎに、上記積層体の織布面
と坪量７５ｇ／ｍ２のクラフト紙４の間に低密度ポリエ
チレン（ＭＦＲ＝８.０ｇ／１０ｍｉｎ、密度＝０.９１
７ｇ／ｃｍ３）を用いてサンドイッチラミネート法によ
り厚み６０μｍの接着層５を形成して積層し、畳裏貼り
用滑り止めシート１を形成した。このようにして得られ
た畳裏貼り用滑り止めシート１は、置き畳の裏貼り用と
して使用され、引裂強度などの機械的強度にすぐれ、滑
り止め効果にすぐれた効果を有し好適に使用された。Example: High density polyethylene flat yarn (fineness 7
80dt) for the warp yarn, and the driving density is 14 × 14 /
A plain woven fabric 2 of 2.54 cm was obtained. On the other hand, low density polyethylene (MFR = 2.0)
g / 10 min, density = 0.922 g / cm 3 ) A composition comprising 80% by weight and 20% by weight of an ethylene-ethyl acrylate copolymer (ethyl acrylate content 25% by weight) was prepared. A laminating layer 3 having a thickness of 100 μm was laminated on one surface of the woven fabric 2 by extrusion lamination using the above composition to obtain a laminate. Next, a low-density polyethylene (MFR = 8.0 g / 10 min, density = 0.91) was placed between the woven fabric surface of the laminate and kraft paper 4 having a basis weight of 75 g / m 2.
7 g / cm 3 ), and a 60 μm-thick adhesive layer 5 was formed and laminated by a sandwich lamination method to form a non-slip sheet 1 for tatami backing. The thus obtained non-slip sheet for tatami backing is used as a backing for tatami mats, has excellent mechanical strength such as tear strength, has an excellent anti-slip effect, and is preferably used. Was done.
【図１】本発明に係る畳裏貼り用滑り止めシートの一実
施例の模式断面図である。FIG. 1 is a schematic cross-sectional view of one embodiment of a non-slip sheet for tatami backing according to the present invention.
１ 畳裏貼り用滑り止めシート ２ 織布 ３ ラミネート層 ４ クラフト紙 ５ 接着層 DESCRIPTION OF SYMBOLS 1 Non-slip sheet for tatami backing 2 Woven cloth 3 Laminating layer 4 Kraft paper 5 Adhesive layer
Claims (1)
片面に接着層を介してクラフト紙を積層し、他の片面に
下記ａ）、ｂ）成分の組成物からなるラミネート層を設
けた畳裏貼り用滑り止めシート。 ａ）密度が０.９１〜０.９４ｇ／ｃｍ３のポリエチレン
５０〜９０重量％ ｂ）エチレン−ビニルエステル共重合体、エチレン-α,
β-不飽和カルボン酸アルキルエステル共重合体及びゴ
ムから選択された少なくとも１種１０〜５０重量％1. A woven or knitted fabric made of a drawn yarn made of a thermoplastic resin, kraft paper is laminated on one side via an adhesive layer, and a laminated layer made of the following components a) and b) is provided on the other side. Non-slip sheet for tatami lining. a) 50-90% by weight of polyethylene having a density of 0.91-0.94 g / cm 3 b) ethylene-vinyl ester copolymer, ethylene-α,
10 to 50% by weight of at least one selected from a β-unsaturated carboxylic acid alkyl ester copolymer and rubber
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000118803A JP4498536B2 (en) | 2000-04-20 | 2000-04-20 | Non-slip sheet for tatami mat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000118803A JP4498536B2 (en) | 2000-04-20 | 2000-04-20 | Non-slip sheet for tatami mat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001303754A true JP2001303754A (en) | 2001-10-31 |
| JP4498536B2 JP4498536B2 (en) | 2010-07-07 |
Family
ID=18629873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000118803A Expired - Fee Related JP4498536B2 (en) | 2000-04-20 | 2000-04-20 | Non-slip sheet for tatami mat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4498536B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002096424A (en) * | 2000-09-25 | 2002-04-02 | Hagihara Industries Inc | Non-slip sheet for tatami backing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS507321U (en) * | 1973-05-16 | 1975-01-25 |
-
2000
- 2000-04-20 JP JP2000118803A patent/JP4498536B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS507321U (en) * | 1973-05-16 | 1975-01-25 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002096424A (en) * | 2000-09-25 | 2002-04-02 | Hagihara Industries Inc | Non-slip sheet for tatami backing |
| JP4489271B2 (en) * | 2000-09-25 | 2010-06-23 | 萩原工業株式会社 | Non-slip sheet for tatami mat |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4498536B2 (en) | 2010-07-07 |
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