JP4017515B2

JP4017515B2 - Cleaning sheet

Info

Publication number: JP4017515B2
Application number: JP2002382125A
Authority: JP
Inventors: 浩史大塚; 浩幸柳田
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2002-12-27
Filing date: 2002-12-27
Publication date: 2007-12-05
Anticipated expiration: 2022-12-27
Also published as: JP2004208939A

Description

【０００１】
【発明の属する技術分野】
本発明は、主として清掃用具に装着されて使用され、ハウスダスト等のゴミを捕集する使い捨ての清掃用シートに関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
建物内の調度品、壁、床、車内の装備品などの清掃対象物の表面を清掃するための清掃用具が各種提案されている。それらの中でも柄の先端部の装着部に、不繊布等で製造された清掃用シートを装着して使用するものがある。
【０００３】
しかし、従来用いられている清掃用シートは、髪の毛や綿埃、土埃などのゴミを不織布の繊維に絡めて捕集することはできるが、細かいゴミや、砂、小石、食物の破片、米粒、ゴマ等の粒で大きさが約１ｍｍ以上の粗い固形のゴミをすべて繊維に絡めて捕集することが困難であった。このため、これらのゴミは、ちりとりや電気掃除機等を用いて処理しなければならなかった。
【０００４】
そこで、下記特許文献１及び特許文献２に記載のように、繊維に絡めて捕集できないゴミを、清掃布の清掃部に設けた粘着部に付着させて捕集する清掃用シートが提案されている。
【０００５】
しかし、これらの清掃用シートは、通常の清掃方法、即ち、清掃用シートを被清掃面上に滑らせて清掃する方法では前記ゴミがその粘着部に捕集されないので、使用者がそれらのゴミを狙ってゴミの上から清掃用シートを一定以上の力でその粘着部に押し付けなければならなかった。このため、清掃用具を押し付けてゴミを付着させようとしても、粘着部が部分的にしか存在しないので、捕集効率が低く、さらに、捕集されなかった種々のゴミのうち、粗いゴミ、すなわち、粒径の大きいゴミや厚みの大きいゴミが先に粘着部に捕集されてしまうと、この粗いゴミによって清掃用シートの清掃部が清掃対象に密着できなくなり、その他の捕集されなかった種々のゴミが捕集できなるほか、さらに繊維に絡めて捕集できるはずのゴミも捕集できなくなる場合があった。
【０００６】
一方、下記特許文献３には、清掃用シートの拭き取り領域と取付け領域との縁部に複数の凹状部を設け、該凹状部を介して比較的大きなゴミを清掃用シートの拭き取り部の中央部に導くようにした清掃用シートが提案されている。
【０００７】
しかし、この清掃用シートは、前記縁部における隣接する前記凹状部の間に、装着具の幅方向に沿って直線状の部分を有しているため、通常の拭き取り操作（例えば床等で拭き取り領域を滑らせる操作）を行った場合には、該部分においてゴミの進入が妨げられてしまい、充分なゴミの捕集を行うことができなかった。また、単に凹状部を設けているだけなので、上述のような比較的大きな固形のゴミを捕集する能力が低く、保持力も低いため、該ゴミを十分に捕集することはできなかった。
【０００８】
【特許文献１】
特開平９−１６４１１０号公報
【特許文献２】
特開平９−２２４８９５号公報
【特許文献３】
特開２０００−９３３７３号公報
【０００９】
従って、本発明の目的は、清掃対象への通常の拭き取り操作で比較的大きな固形のゴミを埃等とともに確実に捕集することができる清掃用シートを提供することにある。
【００１０】
【課題を解決するための手段】
本発明は、清掃用具の装着部に装着されて使用される清掃用シートであって、前記装着部に装着されたときに該装着部の底面側に配される拭き取り部分に、該装着部の前後方向又は左右方向の何れか一方向に向けて開口する粘着性の凹状部を複数有しており、
隣接する前記凹状部の前記前後方向又は前記左右方向における開口縁部の間に、該前後方向又は該左右方向に突出する尖形部又は湾曲部を有し、前記凹状部が前記前後方向又は前記左右方向に見通せないように設けられているとともに、前記凹状部どうしが連通していない清掃用シートを提供することにより、前記目的を達成したものである。
【００１２】
【発明の実施の形態】
以下本発明を、その好ましい実施形態に基づき図面を参照しながら説明する。
【００１３】
図１〜図３は、本発明の清掃用シートの第１実施形態を示すものであり、図２及び図３は、該清掃用シートが清掃用具の装着部に装着された状態を示している。これらの図において、符号１は清掃用シート、２は清掃用具を示している。
【００１４】
図１に示すように、清掃用シート１は、平面視して矩形に設けられており、図２及び図３に示すような清掃用具２の板状の装着部２０に装着されたときに、装着部２０の底面側に配される拭き取り部分１Ａと、拭き取り部分１Ａの両側に位置し、装着部２０の上面側において当該装着部２０に固定される取付部分１Ｂとを有している。
【００１５】
清掃用シート１の寸法形状は特に制限はないが、清掃用具２の装着部２０の底面部の寸法（長さ、幅）を基準として、長さＬ、幅Ｗ１ともに該寸法の±３０％のものが好ましい。清掃用具２の装着部２０の面積が広くなれば、清掃用シート１の拭き取り部分１Ａも面積が広くなる。
清掃用シート１を一般的な家庭用に適用する場合は、長さＬが１７０〜３４０ｍｍ、拭き取り部分１Ａの幅Ｗ２が７０〜１３０ｍｍであることが好ましい。また、拭き取り部分１Ａの面積は、１２０〜４４０ｃｍ²であることが好ましい。
【００１６】
拭き取り部分１Ａには、図２及び図３に示すように、装着部２０に装着されたときに当該装着部２０の前後方向に向けて開口する粘着性の凹状部１０が複数並列に設けられている。図１及び図３に示すように、凹状部１０は、本実施形態では、平面視して台形状に設けられており、これらの凹状部１０は前後には連通していない。
【００１７】
凹状部１０の個々の面積は、清掃用シート１を一般的な家庭用に適用する場合には、０．１〜１２０ｃｍ²、特に１〜１０ｃｍ²であることが好ましい。個々の凹状部の面積が狭すぎると捕集された比較的大きな固形のゴミですぐに満たされてしまい、広すぎると拭き取り部分１Ａにおける凹状部１０以外の部分の捕集能が低くなりすぎる。例えば、本実施形態の清掃用シート１においては、後述の拭き取りシート１２の部分で髪の毛、綿ぼこりや土ぼこり等を繊維に絡めたり吸着させたりして捕集する場合にはその捕集量が少なくなる。
【００１８】
凹状部１０の総面積は、拭き取り部分１Ａの面積の７０％以下、特に５０％以下、さらには３０％以下とすることが好ましい。凹状部１０での比較的大きな固形のゴミの捕集と拭き取り部分１Ａの凹状部１０以外の部分でのゴミの捕集とのバランスを考慮すると、下限は５％とすること好ましい。
【００１９】
凹状部１０の深さ（本実施形態では、後述する拭き取りシート１２の厚さ）ｄ（図２参照）は、捕集する比較的大きな固形のゴミの大きさを考慮すると、０．５〜１０ｍｍ、特に１〜７ｍｍ、さらには２〜５ｍｍであることが好ましい。また、凹状部１０の前後方向の長さ（装着部２０の端部からの奥行き）Ｗ３は、捕集された比較的大きなゴミがはみ出さないことや該ゴミの捕集量を考慮すると、５〜Ｗ１×０．８ｍｍ、特に１０〜Ｗ１×０．５ｍｍであることが好ましい。Ｗ１が１００ｍｍの場合、Ｗ３は最大８０ｍｍとなる。
【００２０】
清掃用シート１は、隣接する凹状部１０の前後方向における開口縁部１０ａの間に、該前後方向に向けて突出する尖形部１０ｂを有している。つまり、隣接する凹状部１０の前後方向における開口縁部１０ａの間には、装着部２０の幅方向に沿って伸びる縁辺部は有していない。
【００２１】
清掃用シート１は、凹状部１０の側面部（本実施形態では後述の拭き取りシート１２の縁辺部）１０ｃと平面部（底面部）１０ｄに粘着性（粘着力）を有している。凹状部１０の平面部１０ｄは、平面以外に、凹凸であったり、切り込みが入れてあってもよい。また、側面部１０ｃ及び平面部１０ｄには、後述する粘着剤がドットや各種の模様でパターンづけられていても良い。
【００２２】
前記凹状部１０の粘着性は、粘着テープ・粘着シートの試験方法（ＪＩＳＺ０２３７１４）でボールの”呼び”の３２倍であるボールＮｏ．で１〜３０であることが好ましく、３〜２８であることがより好ましく、５〜２５であることがさらに好ましい。粘着力が弱すぎると清掃部で捕集できなかったゴミを捕集できなくなり、強すぎると被清掃面に接着した場合に強く接着しすぎて剥離が困難となって操作性が悪くなる。
【００２３】
凹状部１０に粘着性を付与する粘着剤には、天然ゴム系、スチレン／ブタジエンラテックス系、スチレン系、アクリル系、シリコーン系の粘着剤、熱可塑性ゴム、ＡＢＡブロックコポリマー、ブチルゴム、ポリイソブチレン、ビニルエーテルポリマー等が挙げられ、これらの中でも、特に、加工性、保存安定性、粘着力の持続性、のり移り等の点からスチレン系、アクリル系の粘着剤が好ましい。
【００２４】
本実施形態の清掃用シート１は、基材シート１１と、基材シート１１の表面の略中央に接着固定された拭き取りシート１２とから構成されている。拭き取りシート１２の前後方向の縁辺部は、各凹状部１０の開口形状に対応して台形状に切り欠かれ、当該拭き取りシート１２の前後方向中央部の帯状部分１２ａから三角形状の部分が並列に前後に突出して櫛歯状に設けられている。つまり、本実施形態では、凹状部１０は、拭き取りシート１２の端部（厚みの部分）と、基材シート１１における拭き取りシート１２の切り欠き部分で表面に露出している部分とで設けられている。このため、本実施形態においては、凹状部１０の深さは、拭き取りシート１２の厚み分の深さとなっている。また、前記取付部１Ｂは基材シート１１で構成されている。
【００２５】
前記基材シート１１の材質は、前記装着部２０に装着できるものであれば特に制限はないが、装着部２０への装着性、清掃用シート１の保持性、剛性等を考慮すると布（不織布、織布）、紙（合成樹脂混抄紙を含む）、弾性体、樹脂フィルム等が好ましい。特に拭き取り部分１Ａに対応する部分の表面に粘着層を有するもの用いるとことで、拭き取りシート１２の接着固定及び凹状部１０の平面部１０ｄに当該粘着層の粘着性をそのまま用いることができる。
【００２６】
基材シート１１の坪量は、操作性、加工性、剛性、柔軟性の点から５〜１００ｇ／ｍ²であることが好ましい。また、基材シート１１の厚さは、操作性、加工性、剛性、柔軟性等の点から０．００５〜３ｍｍであることが好ましい。
【００２７】
拭き取りシート１２は、従来からゴミを繊維に絡めたり吸着して捕集する清掃用シートに用いられているものを特に制限なく用いることができる。拭き取りシート１２には、紙、不織布、フィルム、繊維等のパイル等の他、例えば、特開平７−１８４８１５号公報の明細書の段落〔０００８〕〜〔００１８〕に記載の清掃用シートを用いることができる。また、拭き取りシート１２は、鉱物油、合成油、シリコーン油等の油剤成分や界面活性剤を１種類以上含んだ液剤を担持させ、該液剤の吸着力でゴミを繊維に吸着させるものを用いることもできる。
【００２８】
拭き取りシート１２の坪量は、操作性、加工性、剛性、柔軟性の点から２０〜４００ｇ／ｍ²であることが好ましい。また、拭き取りシート１２の厚さは、凹状部１０の深さ、操作性、加工性、剛性、柔軟性等の点から０．５〜１０ｍｍ、特に１〜７ｍｍ、さらには２〜５ｍｍであることが好ましい。
【００２９】
本実施形態の清掃用シート１は、隣接する凹状部１０の前後方向における開口縁部１０ａの間に、該前後方向に向けて突出する尖形部１０ｂを有するのみであり、装着部２０の幅方向に沿って伸びる縁辺部は有していないので、掃除具２の装着部２０を清掃対象面（例えば、床面）に当接させて前後に操作する通常の拭き取り操作によって、比較的大きな固形のゴミを清掃用シート１の拭き取り部分１Ａの中央部分に至る凹状部１０まで導いてその粘着力によって確実に捕集するとともに、拭き取りシート１２の表面で髪の毛や埃等のゴミを捕集することができる。
【００３０】
図４〜図１１は、本発明の清掃用シートの第２〜第８実施形態を示すものである。これらの図において、前記第１実施形態の清掃用シート１と共通する部分については、同一符号を付し、その説明は省略する。従って、特に説明のない部分については、第１実施形態における説明が適宜適用される。
【００３１】
本発明の清掃用シートは、図４に示す第２実施形態の清掃用シート１’のように、前記凹状部１０の前後方向の長さＷ３を長くすることで、凹状部１０の面積を広くしてゴミの捕集量を増やすことができる。
【００３２】
本発明の清掃用シートは、図５に示す第３実施形態の清掃用シート１’のように、拭き取りシート１２の前後方向の縁辺部を平面視して二等辺三角形状に形成することで、凹状部１０の形態を平面視して二等辺三角形状にすることもできる。本実施形態の清掃用シート１’によれば、第１実施形態の清掃用シート１の効果に加えて、凹状部１０が拭き取り部分１Ａの中央に進むにつれて細く狭まっているため、拭き取り部分１Ａの中央付近における凹状部１０の狭まった部分でゴミを両側からはめ込んで捕集する効果も得られる。
【００３３】
本発明の清掃用シートは、図６に示す第４実施形態の清掃用シート１’のように、第２実施形態の清掃用シート１’において、拭き取りシート１２の前後方向中央の帯状部分１２ａの幅を狭めて各凹状部１０の面積を広くすることもできる。本実施形態の清掃用シート１’によれば、第３実施形態に比べて凹状部１０がさらに拭き取り部分１Ａの中央側に長く設けられており、第２実施形態に比べ比較的大きなゴミをより多く捕集することができる。
【００３４】
本発明の清掃用シートは、図７に示す第５実施形態の清掃用シート１’のように、拭き取りシート１２の前後方向の縁辺部を、拭き取りシート１２の前後方向中央の帯状部分１２ａから楕円の長径が当該前後方向に揃うよう楕円形状の部分１２ｂを部分的に突出させて形成することによって、凹状部１０を、隣接する当該凹状部１０の前後方向における開口縁部１０ａの間に、該前後方向に突出する湾曲部１０ｂを有する形態とすることもできる。本実施形態の清掃用シート１’は、凹状部１０の形状が、前後方向中央部から開口方向に向けて開口幅が一旦狭まった後に広がるように設けられているので、第１実施形態の効果に加え、拭き取り部分１Ａの中央部で捕集されたゴミのもどりを防ぐことができるほか、中央部分付近での比較的大きなゴミの捕集容量を増やすことができる。
【００３７】
本発明の清掃用シートは、図８及び図９に示す第６実施形態の清掃用シート１'のように、尖形部１０ｂの先端部を、装着部２０の略前後端部からさらに前後に突出ように設け、この突出部分を隅部の壁や角に押し当てて埃や比較的大きなゴミ等を掻き取ることができるようにすることもできる。この尖形部１０ｂの突出長さＭは、拭き取りシート１２の材質に応じて適宜設定することができるが、埃や比較的大きなゴミの掻き取り易さ、加工性、装着部２０への装着性を考慮すると、突出長さＭは、２０ｍｍ以内、特に１０ｍｍ以内とすることが好ましい。
【００４０】
本発明の清掃用シートは、図１０に示す第７実施形態の清掃用シート１’のように、基材シート１１の両面に中間基材１３を介在させて拭き取りシート１２を固定することで、両面使用が可能な形態とすることもできる。この場合、中間基材１３は、パルプ、不織布、紙、フィルム、繊維等のパイル、スポンジ材、ゴムシート等の材質で設けることが好ましい。また、中間基材１３を介在させずに、基材シート１１の両面に直接拭き取りシート１２を固定することもできる。
【００４１】
また、図１１に示す第８実施形態の清掃用シート１’のように、両面使用可能なように、中間基材１３の表裏両面で対称に拭き取りシート１２を固定した形態とすることもできる。この場合、拭き取りシート１２を拭き取り部分１Ａだけでなく取付部分１Ｂとして機能するように、中間基材１３の表裏でその縁辺部から互いに逆方向（本実施形態では前後逆方向）に取付部分１Ｂを突出させるとともに、取付部分１Ｂを突出させない側に複数の凹状部１０が形成されるようにすることが好ましい。
【００４２】
本発明は、前記実施形態に何等制限されるものではなく、本発明の趣旨を逸脱しない範囲において適宜変更することができる。
【００４３】
本発明の清掃用シートは、隣接する凹状部の前後方向における開口縁部の間に、該前後方向に向けて突出する尖形部や湾曲部を有するのみとし、装着部の幅方向に沿って伸びる縁辺部は有していない形態であれば、前記実施形態以外の形態、例えば、拭き取りシートの縁辺部の形状を前記三角形状と前記楕円形状とを組み合わせて凹状部を設けることもできるし、図７に示す前記楕円形状に換えて拭き取りシートの縁辺部を菱形状に形成することもできる。また、図９に示す前記菱形の拭き取りシートに換えて楕円形状の拭き取りシートを基材シートに固定して凹状部を設けることもできる。
【００４４】
本発明の清掃用シートは、前記第１実施形態のように、基材シート１１に拭き取りシート１２を固定して積層した形態とすることが好ましいが、一枚のシートにエンボス加工や部分的に坪量を換えたり、積繊したり、ヒートシールによって凹凸を賦形して所望の凹状部を形成し、該凹状部に前述のように粘着性を付与してもよい。
【００４５】
各凹状部１０は、前記実施形態のように、側面部１０ｃ及び平面部１０ｄの何れにも粘着性を有していることが好ましいが、側面部１０及び平面部１０ｄの何れかにのみ粘着性を付与することもできる。
【００４６】
また、凹状部は、前記各実施形態のように前後方向の両方向や、片方（図１０参照）のみに設けることが好ましいが、装着部の左右方向（幅方向）の何れか一方向又は両方向に設けることもできる。
【００４７】
また、本発明の清掃用シートは、前記実施形態のように、尖形部又は湾曲部の先端部が装着部の略前後端部に位置するように設けられていたり、該前後端部から突出するように設けられていることが好ましいが、尖形部又は湾曲部の先端部が清掃用具の装着部の前後端部又は左右端部より内側に位置するように設けられていてもよい。
【００４８】
また、本発明の清掃用シートは、取付部分の形態は前記実施形態に制限されるものではなく、清掃用具の装着部の形態に応じて適宜設定することができる。
例えば、前記実施形態では、取付部分１Ｂをそのまま基材シート１１で構成したが、基材シートの表面に粘着性を付与し、この粘着性で清掃用具の装着部に付け剥がし可能に固定できるようにしてもよい。
【００４９】
また、図１２に示す清掃用シート１’のように、基材シート１１の形態を前後端部に複数（図１２では前後二つずつ）の片部１１ａを有する形態とし、当該片部１１ａを取付部分１Ｂとする実施形態を採用し、該片部１１ａを装着部に取り付けて清掃用シートを固定することもできる。この実施形態の清掃用シート１’は、拭き取りシート１２の長さが清掃用具の装着部の長さよりも広い場合に、基材シートの無駄を省くことができるとともに、取付部が凹状部１０に接着されないようにする上で好ましい。
【００５０】
このように、取付部分の形態は、清掃用シートを清掃用具の装着部に装着して固定できる形態であれば、その形状、材質に特に制限はない。さらに、例えば、基材シートから複数のひも状体を突出させて取付部分とする形態を採用し、該ひも状体を装着部に結びつけて清掃用シートを装着部に取り付けるようにしたり、或いは、基材シートの前後端部又は左右端部の間にゴムひも等の弾性体を複数本渡して取付部分とする形態を採用し、該弾性体を装着部に掛けて清掃用シートを装着部に取り付けるようにすることもできる。
【００５１】
【発明の効果】
本発明によれば、清掃対象への通常の拭き取り操作で比較的大きな固形のゴミを埃等とともに確実に捕集することができる清掃用シートが提供される。また、凹状部が前後方向又は左右方向に見通せないので、拭き掃除の際にゴミが通過することがない。
【図面の簡単な説明】
【図１】本発明の清掃用シートの第１実施形態を模式的に示す平面図である。
【図２】第１実施形態の清掃用シートを清掃用具の装着部に装着した状態で模式的に示す要部の側断面図である。
【図３】第１実施形態の清掃用シートを清掃用具の装着部に装着した状態で模式的に示す斜視図である。
【図４】本発明の清掃用シートの第２実施形態を模式的に示す平面図（図１相当図）である。
【図５】本発明の清掃用シートの第３実施形態を模式的に示す平面図（図１相当図）である。
【図６】本発明の清掃用シートの第４実施形態を模式的に示す平面図（図１相当図）である。
【図７】本発明の清掃用シートの第５実施形態を模式的に示す平面図（図１相当図）である。
【図８】本発明の清掃用シートの第６実施形態を模式的に示す平面図（図１相当図）である。
【図９】第６実施形態の清掃用シートを清掃用具の装着部に装着した状態で模式的に示す要部の側断面図（図２相当図）である。
【図１０】本発明の清掃用シートの第７実施形態を模式的に示す斜視図である。
【図１１】本発明の清掃用シートの第８実施形態を模式的に示す斜視図である。
【図１２】本発明の清掃用シートの他の実施形態を模式的に示す斜視図である。
【符号の説明】
１、１’ 清掃用シート
１Ａ拭き取り部分
１Ｂ取付部分
１０凹状部
１０ａ開口縁部
１０ｂ尖形部
１０ｃ側面部
１０ｄ平面部（底面部）
１１基材シート
１２拭き取りシート
１２ａ帯状部
１３中間基材
２掃除具
２０装着部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable cleaning sheet that is mainly used by being mounted on a cleaning tool and collects dust such as house dust.
[0002]
[Prior art and problems to be solved by the invention]
Various cleaning tools have been proposed for cleaning the surfaces of objects to be cleaned, such as furniture in buildings, walls, floors, and equipment in cars. Among them, there is one that is used by attaching a cleaning sheet made of non-woven cloth or the like to the attachment portion at the tip of the handle.
[0003]
However, conventionally used cleaning sheets can collect trash such as hair, cotton dust, dirt, etc., entangled with non-woven fibers, but fine dust, sand, pebbles, food fragments, rice grains, It was difficult to entangle the fibers and collect all of the coarse solid waste having a size of about 1 mm or more such as sesame grains. For this reason, these garbage had to be processed using a dustpan or a vacuum cleaner.
[0004]
Therefore, as described in Patent Document 1 and Patent Document 2 below, a cleaning sheet has been proposed that collects dust that cannot be collected by being entangled with fibers by adhering it to the adhesive portion provided in the cleaning portion of the cleaning cloth. Yes.
[0005]
However, these cleaning sheets are not collected in the adhesive portion by a normal cleaning method, that is, by cleaning the cleaning sheet by sliding the cleaning sheet on the surface to be cleaned. The cleaning sheet had to be pressed against the adhesive part with a certain level of force. For this reason, even if the cleaning tool is pressed to adhere the dust, the adhesive portion is only partially present, so the collection efficiency is low, and among the various dust that has not been collected, If dust with a large particle size or dust with a large thickness is collected in the adhesive part first, the coarse dust will prevent the cleaning part of the cleaning sheet from coming into close contact with the object to be cleaned. In addition to collecting trash, there was a case where it was not possible to collect trash that was supposed to be entangled with fibers.
[0006]
On the other hand, in Patent Document 3 below, a plurality of concave portions are provided at the edge between the wiping region and the attachment region of the cleaning sheet, and relatively large dust is removed from the central portion of the wiping portion of the cleaning sheet via the concave portion. There has been proposed a cleaning sheet that leads to the above.
[0007]
However, since this cleaning sheet has a straight portion along the width direction of the wearing tool between the adjacent concave portions at the edge portion, a normal wiping operation (for example, wiping with a floor or the like) is performed. When the operation of sliding the area) was performed, the entry of dust was hindered at that portion, and sufficient dust could not be collected. In addition, since the concave portion is merely provided, the ability to collect relatively large solid dust as described above is low and the holding power is low, so that the dust cannot be sufficiently collected.
[0008]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-164110 [Patent Document 2]
JP-A-9-224895 [Patent Document 3]
JP 2000-93373 A [0009]
Accordingly, an object of the present invention is to provide a cleaning sheet that can reliably collect relatively large solid dust together with dust and the like by a normal wiping operation on a cleaning object.
[0010]
[Means for Solving the Problems]
The present invention provides a cleaning sheet that is used by being mounted on a mounting portion of a cleaning tool, and when the mounting portion is mounted on the mounting portion, the wiping portion disposed on the bottom surface side of the mounting portion has a has a plurality of concave portions of the adhesive which opens toward any one direction of the longitudinal or lateral direction,
Between the opening edge part in the front-back direction or the left-right direction of the adjacent concave part, it has a pointed part or a curved part protruding in the front-rear direction or the left-right direction, and the concave part is the front-rear direction or the The object is achieved by providing a cleaning sheet that is provided so as not to be seen in the left-right direction and in which the concave portions do not communicate with each other .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below based on preferred embodiments with reference to the drawings.
[0013]
1 to 3 show a first embodiment of a cleaning sheet of the present invention, and FIGS. 2 and 3 show a state in which the cleaning sheet is mounted on a mounting portion of a cleaning tool. . In these drawings, reference numeral 1 denotes a cleaning sheet, and 2 denotes a cleaning tool.
[0014]
As shown in FIG. 1, the cleaning sheet 1 is provided in a rectangular shape in plan view, and when the cleaning sheet 1 is attached to the plate-like attachment portion 20 of the cleaning tool 2 as shown in FIGS. 2 and 3, A wiping portion 1 A disposed on the bottom surface side of the mounting portion 20, and an attachment portion 1 B positioned on both sides of the wiping portion 1 A and fixed to the mounting portion 20 on the upper surface side of the mounting portion 20.
[0015]
The dimension and shape of the cleaning sheet 1 are not particularly limited, but the length L and the width W1 are ± 30% of the dimension on the basis of the dimensions (length and width) of the bottom surface portion of the mounting portion 20 of the cleaning tool 2. Those are preferred. If the area of the mounting portion 20 of the cleaning tool 2 increases, the area of the wiping portion 1A of the cleaning sheet 1 also increases.
When the cleaning sheet 1 is applied to general household use, the length L is preferably 170 to 340 mm, and the width W2 of the wiping portion 1A is preferably 70 to 130 mm. The area of the wiping portion 1A is preferably 120 to 440 cm ² .
[0016]
As shown in FIGS. 2 and 3, the wiping portion 1 A is provided with a plurality of adhesive concave portions 10 that open in the front-rear direction of the mounting portion 20 in parallel when mounted on the mounting portion 20. Yes. As shown in FIG.1 and FIG.3, the recessed part 10 is provided in the trapezoid shape by planar view in this embodiment, and these recessed parts 10 are not connected before and behind.
[0017]
Individual areas of the concave portion 10, when applying the cleaning sheet 1 in the general household, 0.1～120Cm ^2, it is particularly preferably 1 to 10 cm ^2. If the area of each concave portion is too small, it will be immediately filled with the relatively large solid dust collected, and if it is too wide, the collecting ability of portions other than the concave portion 10 in the wiping portion 1A will be too low. For example, in the cleaning sheet 1 of the present embodiment, when the hair, cotton dust, dirt dust, or the like is entangled with or adsorbed to the fiber at the portion of the wiping sheet 12 described later, the amount collected is large. Less.
[0018]
The total area of the concave portion 10 is preferably 70% or less, particularly 50% or less, more preferably 30% or less of the area of the wiping portion 1A. Considering the balance between the collection of relatively large solid dust at the concave portion 10 and the collection of dust at the portion other than the concave portion 10 of the wiping portion 1A, the lower limit is preferably 5%.
[0019]
The depth of the concave portion 10 (in this embodiment, the thickness of a wiping sheet 12 described later) d (see FIG. 2) is 0.5 to 10 mm in consideration of the size of relatively large solid dust to be collected. In particular, it is preferably 1 to 7 mm, more preferably 2 to 5 mm. Further, the length W3 in the front-rear direction of the concave portion 10 (depth from the end of the mounting portion 20) W3 is 5 in consideration of the fact that the collected relatively large dust does not protrude and the amount of collected dust. It is preferable that it is -W1x0.8mm, especially 10-W1x0.5mm. When W1 is 100 mm, W3 is a maximum of 80 mm.
[0020]
The cleaning sheet 1 has a pointed portion 10 b that protrudes in the front-rear direction between the opening edge portions 10 a in the front-rear direction of the adjacent concave portions 10. In other words, there is no edge portion extending along the width direction of the mounting portion 20 between the opening edge portions 10a in the front-rear direction of the adjacent concave portions 10.
[0021]
The cleaning sheet 1 has adhesiveness (adhesive strength) on a side surface portion (an edge portion of a wiping sheet 12 described later in this embodiment) 10c and a flat surface portion (bottom surface portion) 10d. In addition to the flat surface, the flat surface portion 10d of the concave portion 10 may be uneven or notched. Moreover, the side surface part 10c and the plane part 10d may be patterned with the adhesive mentioned later with a dot or various patterns.
[0022]
The adhesiveness of the concave portion 10 is 32 times the “Nominal” of the ball according to the adhesive tape / adhesive sheet test method (JIS Z0237 14). It is preferable that it is 1-30, It is more preferable that it is 3-28, It is further more preferable that it is 5-25. If the adhesive force is too weak, it will not be possible to collect the dust that could not be collected by the cleaning section. If it is too strong, it will adhere too strongly when it is adhered to the surface to be cleaned, making it difficult to peel off and the operability will be poor.
[0023]
Adhesives that impart adhesiveness to the concave portion 10 include natural rubber-based, styrene / butadiene latex-based, styrene-based, acrylic-based, and silicone-based adhesives, thermoplastic rubber, ABA block copolymer, butyl rubber, polyisobutylene, and vinyl ether. Among these, styrene-based and acrylic pressure-sensitive adhesives are particularly preferable from the viewpoints of processability, storage stability, durability of adhesive strength, transfer, and the like.
[0024]
The cleaning sheet 1 according to this embodiment includes a base sheet 11 and a wiping sheet 12 that is bonded and fixed to the approximate center of the surface of the base sheet 11. The edge of the wiping sheet 12 in the front-rear direction is cut out in a trapezoidal shape corresponding to the opening shape of each concave part 10, and the triangular part is parallel to the belt-like part 12 a at the center in the front-rear direction of the wiping sheet 12. It protrudes back and forth and is provided in a comb shape. That is, in this embodiment, the recessed part 10 is provided by the edge part (thickness part) of the wiping sheet | seat 12, and the part exposed to the surface in the notch part of the wiping sheet | seat 12 in the base material sheet 11. FIG. Yes. For this reason, in this embodiment, the depth of the recessed part 10 is the depth for the thickness of the wiping sheet 12. Further, the attachment portion 1 B is composed of a base sheet 11.
[0025]
The material of the base sheet 11 is not particularly limited as long as it can be attached to the attachment part 20, but in consideration of the attachment property to the attachment part 20, the retention property of the cleaning sheet 1, the rigidity, etc., the cloth (nonwoven fabric) Woven fabric), paper (including synthetic resin mixed paper), elastic body, resin film and the like. In particular, by using an adhesive layer on the surface of the portion corresponding to the wiping portion 1A, the adhesiveness of the wiping sheet 12 and the adhesiveness of the adhesive layer can be used as it is for the flat portion 10d of the concave portion 10.
[0026]
The basis weight of the base sheet 11 is preferably 5 to 100 g / m ² from the viewpoints of operability, workability, rigidity, and flexibility. Moreover, it is preferable that the thickness of the base material sheet 11 is 0.005-3 mm from points, such as operativity, workability, rigidity, and a softness | flexibility.
[0027]
As the wiping sheet 12, a sheet that has been conventionally used for a cleaning sheet that collects dust by entwining or adsorbing dust can be used without particular limitation. As the wiping sheet 12, in addition to piles of paper, non-woven fabric, film, fiber, etc., for example, the cleaning sheet described in paragraphs [0008] to [0018] of the specification of JP-A-7-184815 is used. Can do. Further, the wiping sheet 12 uses a liquid that contains at least one kind of oil component such as mineral oil, synthetic oil, and silicone oil and a surfactant, and that adsorbs dust on the fibers by the adsorption force of the liquid. You can also.
[0028]
The basis weight of the wiping sheet 12 is preferably ²⁰ to 400 g / m ² from the viewpoints of operability, workability, rigidity, and flexibility. Further, the thickness of the wiping sheet 12 is 0.5 to 10 mm, particularly 1 to 7 mm, more preferably 2 to 5 mm from the viewpoint of the depth of the concave portion 10, operability, workability, rigidity, flexibility, and the like. Is preferred.
[0029]
The cleaning sheet 1 of the present embodiment has only a pointed portion 10b that protrudes in the front-rear direction between the opening edge portions 10a in the front-rear direction of the adjacent concave portions 10, and the width of the mounting portion 20 Since there is no edge extending along the direction, a relatively large solid is obtained by a normal wiping operation in which the mounting portion 20 of the cleaning tool 2 is brought into contact with a surface to be cleaned (for example, a floor surface) and operated back and forth. The trash on the surface of the wiping sheet 1 to the central portion of the wiping portion 1A of the cleaning sheet 1 and reliably collecting it by the adhesive force, and collecting trash such as hair and dust on the surface of the wiping sheet 12. Can do.
[0030]
4 to 11 show second to eighth embodiments of the cleaning sheet of the present invention. In these drawings, portions common to the cleaning sheet 1 of the first embodiment are denoted by the same reference numerals and description thereof is omitted. Therefore, the description in the first embodiment is appropriately applied to a portion that is not particularly described.
[0031]
The cleaning sheet of the present invention increases the length W3 of the concave portion 10 in the front-rear direction, as in the cleaning sheet 1 ′ of the second embodiment shown in FIG. And increase the amount of garbage collected.
[0032]
The cleaning sheet of the present invention is formed in an isosceles triangle shape by planarly viewing the front and rear edges of the wiping sheet 12 like the cleaning sheet 1 ′ of the third embodiment shown in FIG. The shape of the concave portion 10 can be made into an isosceles triangle shape in plan view. According to the cleaning sheet 1 ′ of the present embodiment, in addition to the effect of the cleaning sheet 1 of the first embodiment, the concave portion 10 is narrowed and narrowed toward the center of the wiping portion 1 A. It is also possible to obtain the effect of collecting and collecting dust from both sides in the narrowed portion of the concave portion 10 near the center.
[0033]
The cleaning sheet of the present invention is similar to the cleaning sheet 1 ′ of the fourth embodiment shown in FIG. 6, in the cleaning sheet 1 ′ of the second embodiment. The area of each concave portion 10 can be increased by narrowing the width. According to the cleaning sheet 1 ′ of the present embodiment, the concave portion 10 is further provided longer on the center side of the wiping portion 1 A than in the third embodiment, so that relatively large dust can be removed compared to the second embodiment. Many can be collected.
[0034]
In the cleaning sheet of the present invention, the edge in the front-rear direction of the wiping sheet 12 is elliptical from the belt-shaped part 12a in the center in the front-rear direction of the wiping sheet 12, as in the cleaning sheet 1 ′ of the fifth embodiment shown in FIG. By forming the elliptical portion 12b to partially protrude so that the major axis is aligned in the front-rear direction, the concave portion 10 is formed between the opening edge portions 10a in the front-rear direction of the adjacent concave portion 10. It can also be set as the form which has the curved part 10b which protrudes in the front-back direction. The cleaning sheet 1 ′ of the present embodiment is provided such that the shape of the concave portion 10 is widened after the opening width is once narrowed from the center portion in the front-rear direction toward the opening direction, and thus the effect of the first embodiment. In addition, it is possible to prevent the dust collected in the central portion of the wiping portion 1A from returning, and to increase the collection capacity of relatively large dust in the vicinity of the central portion.
[0037]
The cleaning sheet of the present invention, as shown in FIG. 8 and the cleaning sheet 1 of the sixth embodiment shown in FIG. 9 ', the tip of the pointed portion 10b, the further longitudinal substantially from front and rear end portions of the mounting portion 20 Protruding portions can be provided, and the protruding portions can be pressed against the walls and corners of the corners so that dust or relatively large dust can be scraped off. The protruding length M of the pointed portion 10b can be appropriately set according to the material of the wiping sheet 12, but it is easy to scrape dust and relatively large dust, workability, and mounting property to the mounting portion 20. In consideration of the above, it is preferable that the protrusion length M is within 20 mm, particularly within 10 mm.
[0040]
The cleaning sheet of the present invention, by fixing the seventh as the cleaning sheet 1 'of the embodiment, the sheet 12 wiping with intervening intermediate base 13 on both sides of the substrate sheet 11 shown in FIG. 10, It can also be set as the form which can use both sides. In this case, the intermediate base material 13 is preferably provided by a material such as a pile such as pulp, nonwoven fabric, paper, film, fiber, sponge material, rubber sheet or the like. Further, the wiping sheet 12 can be directly fixed to both surfaces of the base material sheet 11 without interposing the intermediate base material 13.
[0041]
Also, as in the eighth embodiment cleaning sheet 1 of the 'shown in FIG. 1 1, so as to be double-sided use, can also be in the form of front and back surfaces of the sheet 12 wiping symmetrically fixed with the intermediate substrate 13 . In this case, the attachment portion 1B is disposed in the opposite direction (in the present embodiment, the front-rear reverse direction) from the edge on the front and back of the intermediate base material 13 so that the wiping sheet 12 functions not only as the wiping portion 1A but also as the attachment portion 1B. While projecting, it is preferable that a plurality of concave portions 10 be formed on the side where the mounting portion 1B is not projected.
[0042]
The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention.
[0043]
The cleaning sheet of the present invention has only a pointed portion or a curved portion protruding in the front-rear direction between opening edges in the front-rear direction of adjacent concave portions, and along the width direction of the mounting portion. If it is a form that does not have an extending edge part, a form other than the above embodiment, for example, the shape of the edge part of the wiping sheet can be provided with a concave part by combining the triangular shape and the elliptical shape, Instead of the elliptical shape shown in FIG. 7, the edge portion of the wiping sheet can be formed in a rhombus shape. Moreover, it can replace with the said rhombus wiping sheet | seat shown in FIG. 9, and can fix an elliptical wiping sheet to a base material sheet, and can provide a recessed part.
[0044]
The cleaning sheet of the present invention preferably has a configuration in which the wiping sheet 12 is fixed to the base sheet 11 and laminated as in the first embodiment. However, the sheet is embossed or partially embossed. The desired weight may be formed by changing the basis weight, stacking the fibers, or forming irregularities by heat sealing to give the concave portions adhesiveness as described above.
[0045]
Each concave portion 10 preferably has adhesiveness on both of the side surface portion 10c and the flat surface portion 10d as in the above-described embodiment, but only on either the side surface portion 10 or the flat surface portion 10d. Can also be given.
[0046]
In addition, the concave portion is preferably provided in both the front-rear direction and only one side (see FIG. 10 ) as in the above embodiments, but in either one or both directions of the left-right direction (width direction) of the mounting portion. It can also be provided.
[0047]
Further, the cleaning sheet of the present invention is provided such that the tip portion of the pointed portion or the curved portion is positioned at substantially the front and rear end portions of the mounting portion as in the above embodiment, or protrudes from the front and rear end portions. However, it may be provided so that the tip portion of the pointed portion or the curved portion is positioned inside the front and rear end portions or the left and right end portions of the mounting portion of the cleaning tool.
[0048]
In the cleaning sheet of the present invention, the form of the attachment portion is not limited to the above embodiment, and can be appropriately set according to the form of the mounting portion of the cleaning tool.
For example, in the said embodiment, although the attachment part 1B was comprised with the base material sheet 11 as it was, adhesiveness was provided to the surface of a base material sheet, and it can fix to a mounting part of a cleaning tool so that it can be peeled off and peeled off with this adhesiveness. It may be.
[0049]
Moreover, like the cleaning sheet 1 ′ shown in FIG. 12 , the base sheet 11 is formed in a form having a plurality of pieces (two front and rear in FIG. 12 ) at the front and rear end portions, and the piece 11 a It is also possible to adopt an embodiment in which the attachment portion 1B is employed, and to fix the cleaning sheet by attaching the piece portion 11a to the attachment portion. In the cleaning sheet 1 ′ of this embodiment, when the length of the wiping sheet 12 is wider than the length of the mounting portion of the cleaning tool, waste of the base sheet can be eliminated, and the attachment portion is formed in the concave portion 10. It is preferable in order not to adhere.
[0050]
As described above, the shape and material of the attachment portion are not particularly limited as long as the attachment portion can be fixed by attaching the cleaning sheet to the attachment portion of the cleaning tool. Furthermore, for example, a configuration in which a plurality of string-like bodies protrude from the base sheet to form an attachment portion, the string-like body is tied to the attachment portion, and the cleaning sheet is attached to the attachment portion, or Adopting a configuration in which a plurality of elastic bodies such as rubber strings are provided between the front and rear end portions or the left and right end portions of the base sheet as attachment portions, and the cleaning sheets are attached to the attachment portions by hanging the elastic bodies on the attachment portions. It can also be attached.
[0051]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the cleaning sheet which can collect comparatively big solid garbage with dust etc. reliably by normal wiping operation to the cleaning object is provided. Moreover, since the concave portion cannot be seen through in the front-rear direction or the left-right direction, dust does not pass during wiping and cleaning.
[Brief description of the drawings]
FIG. 1 is a plan view schematically showing a first embodiment of a cleaning sheet of the present invention.
FIG. 2 is a side cross-sectional view of a main part schematically illustrating the cleaning sheet according to the first embodiment in a state where the cleaning sheet is mounted on a mounting part of a cleaning tool.
FIG. 3 is a perspective view schematically showing a state in which the cleaning sheet of the first embodiment is mounted on the mounting portion of the cleaning tool.
FIG. 4 is a plan view (corresponding to FIG. 1) schematically showing a second embodiment of the cleaning sheet of the present invention.
FIG. 5 is a plan view (corresponding to FIG. 1) schematically showing a third embodiment of the cleaning sheet of the present invention.
FIG. 6 is a plan view (corresponding to FIG. 1) schematically showing a fourth embodiment of the cleaning sheet of the present invention.
FIG. 7 is a plan view (corresponding to FIG. 1) schematically showing a fifth embodiment of the cleaning sheet of the present invention.
FIG. 8 is a plan view (corresponding to FIG. 1) schematically showing a sixth embodiment of the cleaning sheet of the present invention.
FIG. 9 is a side sectional view (corresponding to FIG. 2) of an essential part schematically showing a cleaning sheet according to a sixth embodiment mounted in a mounting part of a cleaning tool.
FIG. 10 is a perspective view schematically showing a seventh embodiment of the cleaning sheet of the present invention.
FIG. 11 is a perspective view schematically showing an eighth embodiment of the cleaning sheet of the present invention.
FIG. 12 is a perspective view schematically showing another embodiment of the cleaning sheet of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1 'Cleaning sheet 1A Wiping part 1B Mounting part 10 Concave part 10a Opening edge part 10b Pointed part 10c Side part 10d Plane part (bottom part)
DESCRIPTION OF SYMBOLS 11 Base material sheet 12 Wiping sheet | seat 12a Strip | belt-shaped part 13 Intermediate | middle base material 2 Cleaning tool 20 Mounting part

Claims

A cleaning sheet that is used by being mounted on a mounting portion of a cleaning tool,
The wiping portion disposed on the bottom side of said mounting portion when mounted to the mounting portion, a plurality have a concave portion of the adhesive that opens toward any one direction of the longitudinal or lateral direction of said mounting portion And
Between the opening edge part in the front-back direction or the left-right direction of the adjacent concave part, it has a pointed part or a curved part protruding in the front-rear direction or the left-right direction, and the concave part is the front-rear direction or the A cleaning sheet that is provided so as not to be seen in the left-right direction and in which the concave portions do not communicate with each other .

The cleaning sheet according to claim 1, wherein at least one of a side surface portion and a bottom surface portion of the concave portion has adhesiveness.

The cleaning sheet according to claim 1, comprising a base sheet and a wiping sheet disposed on the surface of the base sheet, wherein the wiping sheet is provided in a shape corresponding to the opening shape of the concave portion. .

The cleaning sheet according to claim 3, wherein the wiping sheet is arranged on both sides of the base sheet so as to be usable on both sides.