JPH0325554B2 - - Google Patents
Info
- Publication number
- JPH0325554B2 JPH0325554B2 JP20543382A JP20543382A JPH0325554B2 JP H0325554 B2 JPH0325554 B2 JP H0325554B2 JP 20543382 A JP20543382 A JP 20543382A JP 20543382 A JP20543382 A JP 20543382A JP H0325554 B2 JPH0325554 B2 JP H0325554B2
- Authority
- JP
- Japan
- Prior art keywords
- carpet
- latex
- parts
- fibers
- weight
- 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.)
- Expired
Links
- 229920000126 latex Polymers 0.000 claims description 33
- 239000004816 latex Substances 0.000 claims description 33
- 239000000835 fiber Substances 0.000 claims description 29
- 239000002482 conductive additive Substances 0.000 claims description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 11
- 239000004917 carbon fiber Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 239000006229 carbon black Substances 0.000 claims description 6
- 229920002994 synthetic fiber Polymers 0.000 claims description 6
- 239000012209 synthetic fiber Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 14
- 230000005611 electricity Effects 0.000 description 8
- 239000004744 fabric Substances 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- -1 that is Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005421 electrostatic potential Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 240000004792 Corchorus capsularis Species 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- KLIYQWXIWMRMGR-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate Chemical compound C=CC=C.COC(=O)C(C)=C KLIYQWXIWMRMGR-UHFFFAOYSA-N 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920006174 synthetic rubber latex Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000009732 tufting Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Carpets (AREA)
Description
本発明は電気シヨツクの少ない制電性能に優る
カーペツトに関するものである。
カーペツトのパイルに合成繊維を用いたもの
は、静電気が発生しやすく、特にコントラクトカ
ーペツト用途に於ては、静電防止対策は重要な問
題である。ホテル、劇場などのサービス業では、
カーペツトの上を歩いた後、発生した静電気が人
体に誘電してチヤージされ、この静電気がドアノ
ブなどの金具に触れる時の電気特有のシヨツクに
神経を使つているし、オフイスや病院、学校や幼
稚園でも静電気の発生するカーペツトは禁物であ
る。最近は特にコンピユーター室での静電気の発
生は機械の精度を狂わせるので極度に嫌われ、高
度の制電性が要求されている。
合成繊維カーペツトの帯電性を防止する方法と
しては、基本的に次の4つの方法が一般的であ
る。
(1) 染色加工の段階で、パイルに帯電防止性物質
をスプレーする。
(2) 繊維を製造する段階で帯電防止性物質を混合
させる。
(3) 金属繊維や金属メツキ繊維などの導電性繊維
をパイル中に混在させる。
(4) パツキング用ラテツクスの中に、金属粒子、
炭素粒子、炭素繊維等を分散させる。
しかしながら、一般的にはパイルに帯電防止性
物質をスプレーする方法や帯電防止剤を練り込む
方法は、乾燥した場所では水分を充分吸収できな
いため帯電防止効果が落ちてしまうという欠点が
あるし、また金属繊維等の導電性繊維をパイル中
に混在させる方法は、パイルの色相が変化し、カ
ーペツトの外観をそこなう欠点がある。導電性物
質を添加した導電性ラテツクスをパツキング剤と
して用いる方法は種々提案されており、例えば、
特公昭57−34390号公報、特開昭50−52365号公報
に見られるように、繊維状導電性物質を添加する
ことにより、カーペツトの制電性を改良すること
が記載されているが、添加量が多いと分散あるい
は付着状態を均一に出来ず、添加した繊維状導電
性物質が、カーペツト裏面に於て部分的にかたま
りとなり、周期性を待つ面凹凸(マリーンリツプ
ル)となり、ラテツクスの接着性能が低下して、
カーペツトの取り扱い中にパツキング層の剥離、
ひび割れなどを生じ、実用上の耐久性が劣り、ま
た洗濯により脱落して制電効果が低下する。さら
にバツキング加工時に添加した導電性繊維がロー
ラーに付着するため、到底商品として再現性よく
生産することができないといつた欠点がある。こ
の欠点を解決するための手段として、生機にラテ
ツクスを塗布し、未乾燥状態において無数の細口
から基布の進行方向で、かつ基布に対して水平方
向に空気を吹きつけるか、あるいはロール、スリ
ツトなどに基布を進行方向に対して傾斜させなが
ら通すことによりバツキング層面に横向きの力を
与えてバツキング層中の炭素繊維を横方向(生機
の平面に水平な方向)にずれさせて、炭素繊維を
パイル系方向に配列させ、そののち、バツキング
層の乾燥を完結させて配列を固定させることによ
り、カーペツトの制電性を向上させる方法(特開
昭51−102325号公報)が提案されているが実用的
ではない。また、導電性物質として、金属粒子炭
素粒子などをバツキング用ラテツクス中の分散さ
せる方法は、粒子をバツキング材中に均等に分散
させる技術がむずかしく、かつ充分な制電効果を
付与するために相当多量に混入する必要があるの
で、ラテツクスの接着性能を低下させ、耐久性の
劣化、洗濯による脱落などにより制電効果が低下
する欠点がある。パイル素材として合成繊維を使
用したカーペツトは、低温においては人体帯電圧
が著しく増加する。その原因は一般的にはカーペ
ツトの裏面を構成しているバツキング層部分が絶
縁作用を起こし、パイル表面に発生した静電気が
カーペツトの裏面を伝つて他所へ導電されないこ
とが主因であると言われている。従つてバツキン
グ層の導電化を図ることによりカーペツトの制電
性が向上することはよく知られている。本発明者
等はかかる点に注目し、鋭意検討した結果、繊維
状の導電性添加剤と粒状の導電性添加剤を併用す
ることにより、各々を単独で使用する場合に比較
して添加量が少なくて、コンパウンドの安定性も
良好で、かつ特殊な塗工条件を必要とせずに良好
な制電性がカーペツトに付与できることを見出し
本発明に至つたものである。
本発明において、パイルを形成する合成繊維と
しては、ポリアミド、ポリエステル、ポリオレフ
インおよびポリアクリロニトリル系重合体、もし
くはそれらの共重合体などの任意の繊維を用いる
ことができる。さらに一般に制電繊維といわれて
いる繊維、すなわち繊維のなかに炭素やステンレ
スなどの導電性のある物質を組み入れることによ
つて帯電を防止している繊維、あるいは金属繊維
を一定の割り合いで織り込んだものもあげられ
る。またこれらの合成繊維は、重合体に通常添加
する配合剤、例えばつや削し剤、着色剤、可塑
剤、可塑剤、充填剤などを配合したものであつて
も差し支えない。ラテツクスに添加する導電性添
加剤は繊維状のものとしては、炭素繊維、あるい
はアルミニウム繊維が効果的であり、粒状のもの
としてはカーボンブラツクが効果的である。繊維
状の導電性添加剤の繊維長は10mm以下であること
が望ましい。
10mmを超えると分散が難かしくなり、繊維同志
のからみ合い等の現象が発生しやすくなる。アス
ペクト比は、金属繊維の場合90〜500が好ましく、
これをはずれるといわゆるボール化現象が発生
し、繊維の取り扱いが困難となる。炭素繊維の場
合もやはり取り扱い易さの点から、アスペクト比
は102〜5×103が好ましい。粒状の導電性添加剤
についは、102Ωcm〜10-6Ωcmの固有抵抗を持ち、
比重が3.0以下で粒径が150μ以下のものが適当で
ある。比重が3.0を越える場合は、ラテツクス中
で、経時により沈降分離しやすくなり効果が低下
する。例えば、カーボンブラツク、グラフアイ
ト、アルミ等があげられるが、カーボンブラツク
が性能の点から好ましい。導電性添加剤の添加量
は、ラテツクス固形分100重量部に対して、繊維
状導電性添加剤が炭素繊維の場合は0.3〜0.9重量
部、アルミ繊維の場合は2.0〜5.0重量部、粒状の
導電性物は4〜10重量部であることが好ましい。
繊維状導電性添加剤が炭素繊維の場合添加量が
0.3部を下廻ると充分な導電性を得るためには、
カーボンブラツクの添加量が多くなり、ラテツク
スの安定性が損なわれる。また、アルミ繊維の場
合も同じ理由から2.0部以上加えることが必要で
ある。また炭素繊維の添加量が0.9重量部を上廻
り、アルミ繊維の添加量が5.0重量部を上廻ると
繊維状の導電性添加剤の分散が困難となり、ラテ
ツクスの安定性が損なわれると共に、バツキング
加工時に添加した繊維状導電性添加剤がローラー
に付着するため商品として再現性よく生産するこ
とができない。また、粒状の導電性添加剤が4重
量部より少いと充分な効果が得られず、10重量部
を越えるとラテツクスの安定性が損なわれるので
問題である。本発明の導電性組成物に含まれるラ
テツクスとしては、スチレン−ブタジエン系ラテ
ツクス、メチルメタアクリレート−ブタジエン系
ラテツクス、アクリロニトリル−ブタジエン系ラ
テツクス、ポリイソプレン系ラテツクス、クロロ
プレン系ラテツクス等に代表される合成ゴム系ラ
テツクス、アクリル酸エステル系ラテツクス、ウ
レタン系ラテツクス、酢酸ビニル系ラテツクス、
エチレン−酢酸ビニル系ラテツクス、エチレン−
塩化ビニル系ラテツクス、塩化ビニル系ラテツク
ス、塩化ビニリデン系ラテツクス、ポリエチレン
系ラテツクス等に代表される合成共重合体ラテツ
クスや天然ゴムラテツクス等カーペツト加工に一
般に用いられるラテツクスの単独あるいは混合物
があげられる。さらに必要に応じて、硬化剤、着
色剤、可塑剤、安定剤、活性剤、充填剤などを含
有させることができる。ラテツクス組成物を生機
にコーテイングする具体的方法は、従来公知の方
法、例えば、浸漬、塗着等を用いることもできる
がリツカロールによるいわゆるピツクアツプロー
ラー法、リバースロールコーター、ナイフコータ
ーなどのコーテイングマシンによるコーテイング
方法などが好ましい。すなわち通常のカーペツト
バツキング剤を施すとの全く同様の方法を用い
て、充分な制電性が得られる点が従来の方法と異
なる。
以下、実施例によつて本発明を説明する。実施
例に於ける制電性能の評価方法は下記の方法によ
る。
体積抵抗;
超絶縁計SM10型(東亜電波工業製)を用い
て、各実施例に於て作製したカーペツトを20℃×
40%RHの雰囲気下に24時間放置後、同雰囲気で
体積抵抗を測定した。
人体帯電性;
カーペツトを70℃1時間で予備乾燥を行つたの
ち試験室内(20℃,40%RH)に24時間放置し、
JISL1021のストロール法にて人体帯電圧を測定
する。
実施例 1
100%ナイロン66の1450デニール、68フイラ
メントの糸条を押し込み加工により、けん縮数2
mあたり11山の加工糸(A)を得た。(A)単独あるいは
(A)と制電糸ナイロン(ベルトロン931、20デニー
ル、3フイラメント、カネボウ(株)製)(B)を用い
て、1/8Gのタフト機で、パイル長さ6mm、ステ
ツチ数5cmあたり16本の条件でタフテイングし
て、通常および制電糸入りタフテツドカーペツト
を得た。このカーペツトを通常の酸性染料で染色
した。バツキング用ラテツクスは旭化成ラテツク
スSB系L2001(固形分)100部にCaCO3(日東粉化
工業(株)製SS#30)300部、導電性フイラー(表1
記述の配合量)、消泡剤(東レシリコーン社製
SH5561)0.15部、分散剤(トリポリリン酸ナト
リウム)0.5部、増粘剤、(東亜合成(株)製アロンA
−20P)適当量を添加し、固形分70%、粘度
25000cpsに調整したものを用いた。該ラテツクス
をカーペツト1m2あたり1.3Kg塗布し、二次基布
としてジユートを用い、135℃で15分間熱風乾燥
により乾燥した。この様にして作つたカーペツト
を用いて、体積抵抗、人体帯電圧を測定した。結
果は表1に示した如くで、本発明による導電性バ
ツキング用ラテツクスを塗工したカーペツトが制
電性に優ることは明らかである。
実施例 2
実施例1で用いたカーペツトに実施例1と同じ
基本配合にて、導電性添加剤をアルミ繊維(東京
製綱(株)製Tuff Mic Fiber長さ5mm直径30μ)と
カーボンブラツク(ライオン(株)製ケツチエンブラ
ツクEC)に変更して、実施例(1)と同様の水分散
体の評価を実施した。結果は、表2に示す如く
で、本発明による導電性バツキング用ラテツクス
を塗工したカーペツトが制電性に優ることは明ら
かである。
TECHNICAL FIELD The present invention relates to a carpet with less electric shock and superior anti-static performance. Carpet piles made of synthetic fibers tend to generate static electricity, and anti-static measures are an important issue, especially when used as contract carpets. In service industries such as hotels and theaters,
After walking on a carpet, the static electricity that is generated is dielectrically charged in the human body, and when this static electricity touches metal fittings such as doorknobs, people are sensitive to the shock peculiar to electricity, and they are also sensitive to the shocks that occur in offices, hospitals, schools, and kindergartens. However, carpets that generate static electricity are a no-no. These days, the generation of static electricity, especially in computer rooms, is extremely frowned upon as it disrupts the accuracy of machinery, and a high degree of anti-static properties are required. The following four methods are generally used to prevent synthetic fiber carpet from being electrostatically charged. (1) At the dyeing stage, the pile is sprayed with an antistatic substance. (2) An antistatic substance is mixed during the fiber manufacturing stage. (3) Mix conductive fibers such as metal fibers and metal plating fibers in the pile. (4) Metal particles,
Disperse carbon particles, carbon fibers, etc. However, in general, the methods of spraying antistatic substances on piles or incorporating antistatic agents have the disadvantage that they cannot absorb enough moisture in dry areas, which reduces the antistatic effect. The method of mixing conductive fibers such as metal fibers in the pile has the disadvantage that the hue of the pile changes and the appearance of the carpet is impaired. Various methods have been proposed for using conductive latex added with conductive substances as a packing agent.
As seen in Japanese Patent Publication No. 57-34390 and Japanese Patent Application Laid-Open No. 50-52365, it is described that the antistatic properties of carpets can be improved by adding fibrous conductive substances. If the amount is too large, it will not be possible to disperse or adhere uniformly, and the added fibrous conductive material will partially clump on the back side of the carpet, creating surface irregularities (marine ripples) that wait for periodicity, which will hinder the adhesion of the latex. performance deteriorates,
Peeling of the packing layer during carpet handling;
It causes cracks, has poor practical durability, and falls off when washed, reducing its antistatic effect. Furthermore, since the conductive fibers added during the backing process adhere to the roller, there is a drawback that it is impossible to produce products with good reproducibility. As a means to solve this drawback, latex is applied to the gray fabric, and air is blown from countless narrow openings in the direction of movement of the base fabric and horizontally to the base fabric while it is still wet, or by rolling, By passing the base fabric through a slit at an angle with respect to the direction of movement, a lateral force is applied to the backing layer surface, causing the carbon fibers in the backing layer to shift in the lateral direction (horizontal to the plane of the gray fabric). A method has been proposed (Japanese Unexamined Patent Publication No. 102325/1989) to improve the antistatic properties of carpet by arranging fibers in the pile direction and then completing drying of the backing layer to fix the arrangement. Yes, but it's not practical. In addition, in the method of dispersing metal particles, carbon particles, etc. in backing latex as a conductive substance, it is difficult to disperse the particles evenly in the backing material, and in order to provide a sufficient antistatic effect, a considerably large amount is required. Since it is necessary to mix it into the latex, there is a drawback that the adhesive performance of the latex is lowered, and the antistatic effect is lowered due to deterioration of durability and shedding due to washing. Carpets using synthetic fibers as pile material have a significant increase in human body electrostatic potential at low temperatures. The main cause of this is generally said to be that the backing layer that makes up the back side of the carpet acts as an insulator, preventing the static electricity generated on the pile surface from being transmitted to other places through the back side of the carpet. There is. Therefore, it is well known that the antistatic properties of a carpet can be improved by making the backing layer conductive. The present inventors paid attention to this point and, as a result of intensive study, found that by using a fibrous conductive additive and a granular conductive additive together, the amount added can be reduced compared to when each is used alone. The inventors have discovered that it is possible to impart good antistatic properties to carpets without requiring special coating conditions, and the stability of the compound is low, and the present invention has been developed. In the present invention, as the synthetic fibers forming the pile, any fibers such as polyamide, polyester, polyolefin, polyacrylonitrile polymers, or copolymers thereof can be used. Furthermore, fibers that are generally called antistatic fibers, that is, fibers that prevent static electricity by incorporating conductive substances such as carbon or stainless steel into the fibers, or metal fibers that are woven in a certain proportion. I can also give you something. Furthermore, these synthetic fibers may be blended with compounding agents that are normally added to polymers, such as polishing agents, coloring agents, plasticizers, fillers, and the like. Carbon fibers or aluminum fibers are effective as fibrous conductive additives to be added to latex, and carbon black is effective as granular conductive additives. The fiber length of the fibrous conductive additive is preferably 10 mm or less. If it exceeds 10 mm, dispersion becomes difficult and phenomena such as entanglement of fibers tend to occur. In the case of metal fibers, the aspect ratio is preferably 90 to 500.
If this happens, a so-called balling phenomenon will occur, making it difficult to handle the fibers. In the case of carbon fibers, the aspect ratio is preferably 10 2 to 5×10 3 from the viewpoint of ease of handling. For granular conductive additives, they have a resistivity of 10 2 Ωcm to 10 -6 Ωcm;
It is suitable that the specific gravity is 3.0 or less and the particle size is 150μ or less. If the specific gravity exceeds 3.0, it will tend to settle and separate over time in the latex, reducing its effectiveness. Examples include carbon black, graphite, aluminum, etc., but carbon black is preferred from the viewpoint of performance. The amount of the conductive additive added is 0.3 to 0.9 parts by weight when the fibrous conductive additive is carbon fiber, 2.0 to 5.0 parts by weight when it is aluminum fiber, and 2.0 to 5.0 parts by weight when the fibrous conductive additive is carbon fiber, and The amount of the conductive material is preferably 4 to 10 parts by weight.
If the fibrous conductive additive is carbon fiber, the amount added is
In order to obtain sufficient conductivity when the amount is less than 0.3 parts,
The amount of carbon black added increases and the stability of the latex is impaired. Also, in the case of aluminum fiber, it is necessary to add 2.0 parts or more for the same reason. Furthermore, if the amount of carbon fiber added exceeds 0.9 parts by weight and the amount of aluminum fiber added exceeds 5.0 parts by weight, it becomes difficult to disperse the fibrous conductive additive, which impairs the stability of the latex and causes buckling. Because the fibrous conductive additive added during processing adheres to the rollers, it is not possible to produce products with good reproducibility. Further, if the particulate conductive additive is less than 4 parts by weight, a sufficient effect cannot be obtained, and if it exceeds 10 parts by weight, the stability of the latex is impaired, which is a problem. Examples of the latex included in the conductive composition of the present invention include synthetic rubber latexes such as styrene-butadiene latex, methyl methacrylate-butadiene latex, acrylonitrile-butadiene latex, polyisoprene latex, and chloroprene latex. Latex, acrylic ester latex, urethane latex, vinyl acetate latex,
Ethylene-vinyl acetate latex, ethylene-
Examples include synthetic copolymer latexes such as vinyl chloride latex, vinyl chloride latex, vinylidene chloride latex, polyethylene latex, etc., and natural rubber latex, which are commonly used for carpet processing, singly or in mixtures. Furthermore, if necessary, a curing agent, a coloring agent, a plasticizer, a stabilizer, an activator, a filler, etc. can be contained. Specific methods for coating the gray fabric with the latex composition include conventionally known methods such as dipping and painting, but also coating using a coating machine such as the so-called pick-up roller method using Ritsuka Roll, a reverse roll coater, or a knife coater. Methods and the like are preferred. That is, it differs from conventional methods in that sufficient antistatic properties can be obtained using exactly the same method as applying a conventional carpet backing agent. The present invention will be explained below with reference to Examples. The antistatic performance in the examples was evaluated by the following method. Volume resistivity: Using a super megohmmeter SM10 type (manufactured by Toa Denpa Kogyo), the carpet prepared in each example was measured at 20°C.
After being left in an atmosphere of 40% RH for 24 hours, the volume resistance was measured in the same atmosphere. Human body chargeability: After pre-drying the carpet at 70℃ for 1 hour, it was left in the test room (20℃, 40%RH) for 24 hours.
Measure human body electrostatic voltage using the Stroll method of JISL1021. Example 1 A 1450 denier 68 filament yarn made of 100% nylon 66 was compressed to create a crimp count of 2.
Processed yarn (A) with 11 threads per m was obtained. (A) Alone or
Using (A) and antistatic thread nylon (Beltron 931, 20 denier, 3 filaments, manufactured by Kanebo Co., Ltd.) (B), use a 1/8G tuft machine, pile length 6 mm, number of stitches 16 per 5 cm. Tufting was carried out under the following conditions to obtain tufted carpets containing normal and antistatic yarns. The carpet was dyed with conventional acid dyes. The backing latex was 100 parts of Asahi Kasei Latex SB L2001 (solid content), 300 parts of CaCO 3 (SS#30 manufactured by Nitto Funka Kogyo Co., Ltd.), and a conductive filler (Table 1).
(indication amount), antifoaming agent (manufactured by Toray Silicone Co., Ltd.)
SH5561) 0.15 parts, dispersant (sodium tripolyphosphate) 0.5 parts, thickener, (Aron A manufactured by Toagosei Co., Ltd.)
-20P) Add appropriate amount, solids content 70%, viscosity
The one adjusted to 25000cps was used. The latex was applied in an amount of 1.3 kg per 1 m 2 of carpet, and dried by hot air drying at 135° C. for 15 minutes using Jute as the secondary base fabric. Volume resistance and human body electrostatic potential were measured using the carpet made in this manner. The results are shown in Table 1, and it is clear that the carpet coated with the conductive backing latex of the present invention has excellent antistatic properties. Example 2 Conductive additives were added to the carpet used in Example 1 with the same basic composition as in Example 1, and aluminum fiber (Tuff Mic Fiber length 5mm diameter 30μ manufactured by Tokyo Rope Co., Ltd.) and carbon black (Lion fiber) were added to the carpet used in Example 1. An aqueous dispersion was evaluated in the same manner as in Example (1) except that the dispersion was changed to EC (manufactured by Ketsuen Black Co., Ltd.). The results are shown in Table 2, and it is clear that the carpet coated with the conductive backing latex of the present invention has excellent antistatic properties.
【表】【table】
【表】【table】
Claims (1)
テツクス固形分100重量部に対し繊維状導電性添
加剤として0.3〜0.9重量部の炭素繊維または2.0〜
5.0重量部のアルミ繊維を用い、4〜10重量部の
粒状導電性添加剤を同時に含有せしめてなる制電
性能に優るカーベツト。 2 繊維状導電性添加剤が、アスペクト比102〜
5×103で、繊維長が10mm以下の炭素繊維である
特許請求の範囲第1項記載の制電性能に優るカー
ペツト。 3 繊維状導電性添加剤が、アスペクト比90〜
500で繊維長が10mm以下のアルミ繊維である特許
請求の範囲第1項記載の制電性能に優るカーペツ
ト。 4 粒状導電性添加剤が、カーボンブラツクであ
る特許請求の範囲第1項記載の制電性能に優るカ
ーペツト。[Scope of Claims] 1. 0.3 to 0.9 parts by weight of carbon fiber or 2.0 to 2.0 parts by weight of carbon fiber as a fibrous conductive additive per 100 parts by weight of latex solid content in the carpet backing layer made of synthetic fibers.
A carpet with excellent antistatic performance, which is made by using 5.0 parts by weight of aluminum fibers and simultaneously containing 4 to 10 parts by weight of a granular conductive additive. 2 The fibrous conductive additive has an aspect ratio of 10 2 ~
A carpet with excellent antistatic performance according to claim 1, which is made of carbon fiber having a size of 5×10 3 and a fiber length of 10 mm or less. 3 The fibrous conductive additive has an aspect ratio of 90~
A carpet with excellent antistatic performance according to claim 1, which is made of aluminum fibers having a fiber length of 500 mm and a fiber length of 10 mm or less. 4. A carpet with excellent antistatic performance according to claim 1, wherein the particulate conductive additive is carbon black.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20543382A JPS59100780A (en) | 1982-11-25 | 1982-11-25 | Carpet excellent in anti-static property |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20543382A JPS59100780A (en) | 1982-11-25 | 1982-11-25 | Carpet excellent in anti-static property |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59100780A JPS59100780A (en) | 1984-06-11 |
JPH0325554B2 true JPH0325554B2 (en) | 1991-04-08 |
Family
ID=16506780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20543382A Granted JPS59100780A (en) | 1982-11-25 | 1982-11-25 | Carpet excellent in anti-static property |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59100780A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6119884A (en) * | 1984-07-05 | 1986-01-28 | Shin Etsu Polymer Co Ltd | Antistatic flooring material |
JPS61160489A (en) * | 1984-12-30 | 1986-07-21 | Zeon Kasei Kk | Electrically conductive floor covering material |
-
1982
- 1982-11-25 JP JP20543382A patent/JPS59100780A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59100780A (en) | 1984-06-11 |
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