JPH1119015A - Nonwoven fabric for wiping member and manufacture thereof - Google Patents
Nonwoven fabric for wiping member and manufacture thereofInfo
- Publication number
- JPH1119015A JPH1119015A JP9177249A JP17724997A JPH1119015A JP H1119015 A JPH1119015 A JP H1119015A JP 9177249 A JP9177249 A JP 9177249A JP 17724997 A JP17724997 A JP 17724997A JP H1119015 A JPH1119015 A JP H1119015A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- dust
- fiber
- spunbonded nonwoven
- wiping
- 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.)
- Pending
Links
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、清拭材用不織布お
よびその製造方法に関し、特に、業務用あるいは家庭用
の掃除シート、各種清拭材等の用途に好適な清拭材用不
織布およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nonwoven fabric for a wiping material and a method for producing the same, and more particularly to a nonwoven fabric for a wiping material suitable for use as a cleaning sheet for business use or home use, various wiping materials, and the like. It relates to a manufacturing method.
【０００２】[0002]
【従来の技術】従来、清掃用物品に用いられるものとし
て、不織布を基材とする材料が数多く提供されている。
例えば、不織布からなる清拭材が使用されている。この
清拭材は、被清掃面上の塵埃を吸着し、除去する捕塵
性、捕集した塵埃を保持する保塵性および被清掃面の傷
付き防止性を有することが求められる。そのため、清拭
材は、小さな塵埃を拭い取るために、比較的繊維径が小
さく、繊維間の隙間の小さいものが求められ、一方、大
きな塵埃を絡め取り、しかも保持するために繊維の自由
度が大きく、さらには実用強度を持ったものが求められ
る。2. Description of the Related Art Conventionally, many materials having a nonwoven fabric as a base material have been provided for use in cleaning articles.
For example, a cleaning material made of a nonwoven fabric is used. The wiping material is required to have a dust collecting property for absorbing and removing dust on the surface to be cleaned, a dust retaining property for holding the collected dust, and a property for preventing the surface to be cleaned from being damaged. For this reason, the wiping material is required to have a relatively small fiber diameter and a small gap between fibers in order to wipe out small dust. On the other hand, the degree of freedom of the fiber to entangle and hold large dust is required. However, a material having practical strength is required.
【０００３】近年、捕塵性、保塵性および清掃面の傷付
き防止性等の高性能化のため、さらに、柔軟で嵩高な不
織布を清拭材として用いることが提案されている。例え
ば、繊維フィラメントを切断して形成された立毛を有す
る不織布（特開平２−１２４１２２号公報）、網状シー
トの片面もしくは両面に、不織布状の繊維集合体が絡合
されたもの（特開平５−１９２２８５号公報に記載）な
どが提案されている。In recent years, it has been proposed to use a soft and bulky nonwoven fabric as a wiping material in order to improve the performance such as the dust collecting property, the dust retaining property and the scratch preventing property of the cleaning surface. For example, a nonwoven fabric having naps formed by cutting fiber filaments (Japanese Patent Laid-Open No. 2-124122), a nonwoven fabric aggregate entangled on one or both sides of a mesh sheet (Japanese Patent Laid-Open No. 5-124122). No. 192285) has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、立毛を有する
不織布のような一般的な不織布の後加工による起毛で
は、起毛加工用の特殊な設備を必要とするために生産コ
ストが高くなり、強度を保ちながら嵩高化するために不
織布を多量に使用しなければならず、また、繊維が密に
配列していて内層の繊維は被清掃面に接触しないため
に、基材としての不織布の利用度が低く非効率である等
の問題がある。一方、網状シートに繊維集合体が絡合さ
れたものは、網状シートと繊維集合体の複合化工程、熱
処理工程を必要とするために生産コストが高くなる等の
問題がある。However, in the case of brushing by post-processing of a general non-woven fabric such as a non-woven fabric having raised hair, a special facility for raising the brush is required, so that the production cost is increased and the strength is reduced. A large amount of non-woven fabric must be used in order to increase the bulk while maintaining it, and since the fibers are densely arranged and the fibers in the inner layer do not contact the surface to be cleaned, the use of non-woven fabric as a base material is There are problems such as low efficiency. On the other hand, in the case where the fiber aggregate is entangled with the mesh sheet, there is a problem that the production cost is increased because a compounding step of the mesh sheet and the fiber assembly and a heat treatment step are required.
【０００５】また、使用済の清拭材は、吸着した各種の
塵埃が繊維間に絡まっているため、洗濯等によって塵埃
を除去し、何回も再使用することは実用的でない。した
がって、使い捨てとなるので、低コストで製造できるも
のであることが必要である。Further, in the used cleaning material, since various kinds of adsorbed dust are entangled between the fibers, it is not practical to remove the dust by washing or the like and reuse it many times. Therefore, since it is disposable, it must be able to be manufactured at low cost.
【０００６】そこで、本発明の目的は、土埃等の小さな
塵埃の吸着、保持性能に優れることはもとよりパン屑や
髪の毛、綿屑などの大きな塵埃の捕集性能にも優れ、か
つ低コストで製造することができる清拭材用不織布およ
びその製造方法を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide not only excellent performance of adsorbing and holding small dust such as dust, but also excellent performance of collecting large dust such as bread dust, hair and cotton dust, and manufacturing at low cost. It is an object of the present invention to provide a nonwoven fabric for a wiping material and a method for producing the same.
【０００７】[0007]
【課題を解決するための手段】前記課題を解決するため
に、本発明は、スパンボンド不織布を基材とし、短繊維
が積層され、スパンボンド不織布と短繊維が交絡してい
る複合不織布であって、目付量が、２０〜１００ｇ／ｍ
2 、嵩密度が０．０２〜０．１０ｇ／ｃｍ3 、かつ、少
なくとも表裏いずれかの面において表面から０．５ｍｍ
以上浮き出た弧状繊維ループを５個／ｃｍ以上有するこ
とを特徴とする嵩高な清拭材用不織布を提供するもので
ある。好ましくは、該スパンボンド不織布は、部分的に
熱融着されており、目付量が５〜３０ｇ／ｍ2 、個々の
熱融着部の面積が２ｍｍ2 以下であり、かつ隣接する熱
融着部の中心間の距離が１〜５ｍｍであり、該スパンボ
ンド不織布の表面積に占める熱融着部の合計面積の割合
が５〜３０％である。さらに、本発明は、前記スパンボ
ンド不織布と短繊維を積層し、ニードルパンチ加工また
は水流交絡法によって交絡することを特徴とする不織布
の製造方法も提供する。In order to solve the above problems, the present invention relates to a composite nonwoven fabric comprising a spunbonded nonwoven fabric as a base material, laminated short fibers, and entangled with the spunbonded nonwoven fabric. And the basis weight is 20 to 100 g / m
2. The bulk density is 0.02 to 0.10 g / cm 3 , and at least 0.5 mm from the front or back surface
An object of the present invention is to provide a bulky nonwoven fabric for a wiping material characterized by having at least 5 raised arc-shaped fiber loops / cm. Preferably, the spunbonded nonwoven fabric is partially heat-sealed, has a basis weight of 5 to 30 g / m 2 , has an area of each heat-sealed portion of 2 mm 2 or less, and has an adjacent heat-sealed portion. The distance between the centers of the portions is 1 to 5 mm, and the ratio of the total area of the heat-sealed portion to the surface area of the spunbonded nonwoven fabric is 5 to 30%. Further, the present invention also provides a method for producing a nonwoven fabric, wherein the spunbonded nonwoven fabric and short fibers are laminated and entangled by needle punching or hydroentanglement.
【０００８】[0008]
【発明の実施の形態】以下、本発明の清拭材用不織布
（以下、「本発明の不織布」という）について詳細に説
明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the nonwoven fabric for a wiping material of the present invention (hereinafter referred to as "nonwoven fabric of the present invention") will be described in detail.
【０００９】本発明の不織布は、スパンボンド不織布を
基材とするものである。本発明において、スパンボンド
不織布の素材として用いられる熱可塑性樹脂としては、
ポリエチレン、ポリプロピレン、ポリブテン等のポリオ
レフィン、ポリエステル、ナイロンあるいはポリスチレ
ンなどを例示できる。そのなかでも、入手しやすく紡糸
性の良いポリプロピレンがより好ましい。またポリエチ
レンやポリプロピレン等のポリオレフィンは、チーグラ
ー触媒等の従来の触媒を用いる重合法で製造されたもの
でも良いが、メタロセン触媒に代表されるシングルサイ
ト触媒を用いる重合法で製造されたものの方が、より紡
糸性に優れるために生産コストの低減が図れるほか、繊
維径をより細くすることができ、得られたスパンボンド
不織布の剛性を小さくすることができ、本発明の不織布
の強度をよりあげることができる。そして、スパンボン
ド不織布は、これら素材から連続長繊維を作り、これら
連続長繊維により層を形成したものである。この層は１
層に限定されず、２層以上の複数であってもよい。更に
複数の層からなるスパンボンド不織布では、それぞれの
層の素材が異なっていてもよい。また、スパンボンド不
織布を形成する繊維は、単一の前記熱可塑性樹脂からな
る繊維であっても、融点の異なる二種以上の熱可塑性樹
脂から構成される芯／鞘構造繊維、あるいはサイドバイ
サイド型の複合構造の繊維であってもよく、また、繊維
断面において、２種以上の樹脂成分からなる複数のくさ
び形部が放射状に配置された形態を有する分割型繊維等
の構造を有するものであってもよい。スパンボンド不織
布の製造方法としては、自体公知のものがそのまま使用
できるので、その詳細については説明を省略する。[0009] The nonwoven fabric of the present invention is based on a spunbonded nonwoven fabric. In the present invention, as the thermoplastic resin used as a material of the spunbond nonwoven fabric,
Examples thereof include polyolefins such as polyethylene, polypropylene and polybutene, polyester, nylon and polystyrene. Among them, polypropylene which is easily available and has good spinnability is more preferable. Polyolefins such as polyethylene and polypropylene may be produced by a polymerization method using a conventional catalyst such as a Ziegler catalyst, but those produced by a polymerization method using a single-site catalyst represented by a metallocene catalyst are preferred. In addition to reducing production costs due to better spinnability, the fiber diameter can be made smaller, the rigidity of the resulting spunbonded nonwoven fabric can be reduced, and the strength of the nonwoven fabric of the present invention can be increased. Can be. The spunbonded nonwoven fabric is formed by forming continuous filaments from these materials and forming a layer with these continuous filaments. This layer is 1
The number of layers is not limited to two or more. Further, in a spunbonded nonwoven fabric composed of a plurality of layers, the material of each layer may be different. Further, even if the fibers forming the spunbonded nonwoven fabric are fibers made of a single thermoplastic resin, core / sheath structured fibers made of two or more thermoplastic resins having different melting points, or side-by-side type fibers It may be a fiber having a composite structure, and also has a structure such as a split-type fiber having a form in which a plurality of wedge-shaped portions composed of two or more resin components are radially arranged in a fiber cross section. Is also good. As a method for producing the spunbonded nonwoven fabric, a known method can be used as it is, and therefore, the detailed description thereof is omitted.
【００１０】本発明に用いられるスパンボンド不織布を
構成する繊維は、基材としての所要の引張強度の不織布
が得られる点で、繊度が１〜１５ｄの範囲のものが好ま
しく、さらに繊度が１．５〜１０ｄの範囲のものが好ま
しい。The fibers constituting the spunbonded nonwoven fabric used in the present invention preferably have a fineness in the range of 1 to 15d, and more preferably have a fineness of 1.15 from the viewpoint that a nonwoven fabric having a required tensile strength as a substrate can be obtained. Those having a range of 5 to 10d are preferable.
【００１１】また、繊維の断面形状は、円形、楕円形、
菱形、三角形等の任意の形状でよく、特に制限されな
い。The cross-sectional shape of the fiber is circular, elliptical,
Any shape such as a rhombus and a triangle may be used, and there is no particular limitation.
【００１２】本発明に用いられる短繊維の素材としては
ポリプロピレン、ポリエチレンなどのポリオレフィン、
ポリエステル、ポリアミドなどの合成樹脂や、レーヨ
ン、綿等の天然繊維等が挙げられる。短繊維不織布の構
成繊維はこれらの素材の１種または２種以上の組み合わ
せからなるものである。これらの中でも嵩高性、柔軟性
がえられやすいため、ポリエステルが好ましい。これら
の構成繊維の平均長は、通常２５〜１００ｍｍ、好まし
くは３５〜７５ｍｍであるものが好適に使用でき、繊度
は通常１ｄ〜１５ｄの範囲のものが好ましく、さらに繊
度が１．５〜８ｄの範囲のものが好ましい。このような
構成繊維からなる短繊維は、短繊維のまま、すなわち短
繊維を堆積させたウェブとしてスパンボンド不織布に積
層してもよいが、ウェブを熱やその他の物理的または化
学的方法により接合させた不織布としてスパンボンド不
織布に積層し、交絡させてもよい。スパンボンド不織布
に加えて短繊維を使用すると所望の塵埃補集性、吸着
性、保持性を担保できるようなループを簡易な工程で形
成することができる。The short fiber material used in the present invention includes polyolefins such as polypropylene and polyethylene,
Examples thereof include synthetic resins such as polyester and polyamide, and natural fibers such as rayon and cotton. The constituent fibers of the short-fiber nonwoven fabric are made of one or a combination of two or more of these materials. Among these, polyester is preferable because it is easy to obtain bulkiness and flexibility. The average length of these constituent fibers is usually 25 to 100 mm, preferably 35 to 75 mm, and the fineness is usually preferably in the range of 1 d to 15 d. Those in the range are preferred. The short fibers composed of such constituent fibers may be laminated on the spunbonded nonwoven fabric as short fibers, that is, as a web on which the short fibers are deposited, but the web is bonded by heat or other physical or chemical methods. The spunbonded nonwoven fabric may be laminated on the spunbonded nonwoven fabric and entangled. When short fibers are used in addition to the spunbonded nonwoven fabric, a loop that can ensure desired dust collecting properties, adsorption properties, and holding properties can be formed by a simple process.
【００１３】また、繊維の断面形状は円形、楕円形、菱
形、三角形等の任意の形状でよく、特に制限されない。
さらに、この繊維は１種または２種以上の樹脂成分から
なる複数のくさび形部が放射状に配置された形態を有す
る分割型繊維等の構造を有するものであってもよい。The cross-sectional shape of the fiber may be any shape such as a circle, an ellipse, a rhombus, and a triangle, and is not particularly limited.
Further, the fiber may have a structure such as a split-type fiber having a form in which a plurality of wedge-shaped portions made of one or more resin components are radially arranged.
【００１４】また、短繊維ウェブまたは不織布を構成す
る繊維は１種または２種以上の繊維を混合したものであ
って、好ましくは成形しやすいように１インチ当り５〜
２５個程度捲縮処理されたものがよい。The fiber constituting the short fiber web or the nonwoven fabric is one or a mixture of two or more kinds of fibers, and preferably has a fiber size of 5 to 5 inches per inch so as to be easily formed.
It is preferable that about 25 pieces have been crimped.
【００１５】本発明の不織布は塵埃の補集性が良好で、
所要の引張強度を有し、コスト的にも実用的である点で
目付量２０〜１００ｇ／ｍ2 であるものが好ましく、さ
らに好ましくは３０〜８０ｇ／ｍ2 の範囲であるもので
ある。また、嵩密度は嵩高性、柔軟性を保ち、また所要
の引張強度を保持する点で０．０２〜０．１０ｇ／ｃｍ
3 の範囲が好ましく、さらに好ましくは０．０３〜0.０
８ｇ／ｃｍ3 の範囲である。The nonwoven fabric of the present invention has good dust collecting properties,
Has a required tensile strength, preferably it has a basis weight of 20 to 100 g / m 2 in that they are cost and also practical, more preferably those in the range of 30 to 80 g / m 2. Further, the bulk density is 0.02 to 0.10 g / cm in terms of maintaining bulkiness and flexibility and maintaining required tensile strength.
The range of 3 is preferable, and more preferably 0.03 to 0.0.
The range is 8 g / cm 3 .
【００１６】本発明の不織布は清拭材として良好な塵埃
補集性を有し、所要の引張強度を有する点で、例えば図
１に示すように、不織布１の表裏いずれか、または両方
の面において、表面から０．５ｍｍ以上、好ましくは５
ｍｍ以下浮き出た弧状繊維ループ２を５個／ｃｍ以上、
好ましくは８〜５０個／ｃｍ有するものである。この浮
き出た繊維ループ間に小さな塵埃からパンくず、髪の
毛、綿埃など大きな塵埃まで絡め、広い範囲の塵埃を確
実に補集することができる。The nonwoven fabric of the present invention has good dust collecting properties as a wiping material and has a required tensile strength. For example, as shown in FIG. At least 0.5 mm from the surface, preferably 5 mm
5 mm / cm
Preferably, it has 8 to 50 particles / cm. Small dust to breadcrumbs, hair, cotton, and other large dust can be entangled between the raised fiber loops, and a wide range of dust can be reliably collected.
【００１７】また、本発明に用いられるスパンボンド不
織布は、スパンボンド不織布を構成する連続長繊維が部
分的に熱融着されてなる複数の熱融着部を有し、該熱融
着部が均一に分布して表面に多数の凹凸が形成されてい
るものである。目付量は通常５〜３０ｇ／ｍ2 であり、
好ましくは１０〜２５ｇ／ｍ2 である。得られる不織布
の塵埃の補集性、引張強度、コスト等の面からこの範囲
の目付量であるのが好ましい。さらに、本発明におい
て、良好な短繊維との交絡性を有し、所要の引張強度を
有する不織布が得られる点で、各熱融着部の面積は２ｍ
ｍ2 以下であるのが好ましく、さらに好ましくは１ｍｍ
2 以下であり、より好ましくは０．１〜０．９ｍｍ2 で
ある。また、隣接する熱融着部の中心間の距離は１〜５
ｍｍであるのが好ましく、さらに好ましくは１〜３ｍｍ
の範囲である。また、この熱融着部が不織布の表面積に
占める割合は、５〜３０％の範囲が好ましく、さらに好
ましくは７〜２０％の範囲である。この熱融着部の形態
は、特に制限されず、例えば、円形、菱形、三角形等の
任意の形態であってもよい。Further, the spunbonded nonwoven fabric used in the present invention has a plurality of heat-bonded portions in which continuous filaments constituting the spunbonded nonwoven fabric are partially heat-bonded. A large number of irregularities are formed on the surface uniformly distributed. The basis weight is usually 5 to 30 g / m 2 ,
Preferably it is 10-25 g / m < 2 >. It is preferable that the weight per unit area be in this range from the viewpoints of dust collecting property, tensile strength, cost and the like of the obtained nonwoven fabric. Furthermore, in the present invention, the area of each heat-sealed portion is 2 m in that a nonwoven fabric having good entanglement with short fibers and having a required tensile strength is obtained.
m 2 or less, more preferably 1 mm
2 or less, and more preferably 0.1 to 0.9 mm 2 . The distance between the centers of adjacent heat-sealed portions is 1 to 5
mm, more preferably 1-3 mm
Range. The ratio of the heat-sealed portion to the surface area of the nonwoven fabric is preferably in the range of 5 to 30%, more preferably in the range of 7 to 20%. The shape of the heat-sealed portion is not particularly limited, and may be, for example, any shape such as a circle, a diamond, and a triangle.
【００１８】本発明の不織布の製造は、スパンボンド法
によって形成された実質的に連続長繊維からなる不織布
ウェブを用い、連続長繊維を部分的に熱接合し、さら
に、短繊維ウェブをカード法などの一般的な乾式法によ
って形成し、前記スパンボンド不織布と積層し、ついで
ニードルパンチ加工ないしは水流交絡法によって交絡さ
せる方法にしたがって行うことができる。本発明の不織
布は、ニードルパンチ加工や水流交絡法により製造する
ことができるため、製造コストを低く抑えることができ
る。また、ニードルパンチ加工や水流交絡法によれば嵩
高性を損なうことなく交絡させることができる。連続長
繊維を部分的に熱接合する方法は、特に制限されず、熱
ロールによる加熱や超音波融着等の常法でよい。該短繊
維ウェブは、嵩高性およびスパンボンド不織布との交絡
性を損なわない範囲で、熱融着やケミカルボンディング
など任意の方法で予めボンディングして不織布を形成し
た後、スパンボンド不織布と積層してもよい。In the production of the nonwoven fabric of the present invention, a nonwoven fabric web made of substantially continuous continuous fibers formed by a spunbonding method is used, the continuous continuous fibers are partially thermally bonded, and the short fiber web is formed by a card method. It can be performed according to a method of forming by a general dry method such as the above, laminating with the spunbonded nonwoven fabric, and then entangled by needle punching or hydroentanglement. Since the nonwoven fabric of the present invention can be manufactured by a needle punching process or a hydroentanglement method, the manufacturing cost can be reduced. Further, according to the needle punching process or the hydroentanglement method, the entanglement can be performed without impairing the bulkiness. There is no particular limitation on the method of partially thermally joining the continuous continuous fibers, and a conventional method such as heating with a hot roll or ultrasonic fusion may be used. The short fiber web is preliminarily bonded by an arbitrary method such as heat fusion or chemical bonding to form a nonwoven fabric, as long as the bulkiness and the confounding property with the spunbonded nonwoven fabric are not impaired. Is also good.
【００１９】ニードルパンチ加工で使用するフェルト針
は、交絡性、針折れのバランスから針番手３２〜４２の
ものが好ましい。また、フェルト針の断面形状は、丸、
三角、四角等のいずれの形状であってもよい。The felt needle used in the needle punching process preferably has a needle count of 32 to 42 from the viewpoint of the balance between the confounding property and the needle breakage. The cross-sectional shape of the felt needle is round,
Any shape such as a triangle and a square may be used.
【００２０】さらに、ニードルパンチ加工のパンチ数
は、嵩高性、不織布の引張強度、作業スピードの点か
ら、３０〜１５０個／ｃｍの範囲が好ましい。針の深さ
については、嵩高性を持たせ、所要の引張強度を保持す
る不織布が得られる点で、第１バーブ以上かつ５ｍｍ以
上が好ましく、作業スピードの点からさらに好ましくは
１０〜２５ｍｍの範囲である。水流交絡法の場合は、高
圧水流を発生するノズルの個々の径が、０．０７〜０．
１５ｍｍ程度、ノズル間距離０．５〜１．５ｍｍ程度の
もので、水圧は２〜１０ＭＰａ程度であるが、特に限定
されるものではない。Further, the number of punches in the needle punching process is preferably in the range of 30 to 150 / cm from the viewpoint of bulkiness, tensile strength of the nonwoven fabric, and working speed. The depth of the needle is preferably not less than the first barb and not less than 5 mm, and more preferably from 10 to 25 mm from the viewpoint of working speed, in that a nonwoven fabric having bulkiness and maintaining a required tensile strength is obtained. It is. In the case of the water entanglement method, the individual diameter of the nozzle that generates the high-pressure water flow is 0.07 to 0.
The diameter is about 15 mm, the distance between nozzles is about 0.5 to 1.5 mm, and the water pressure is about 2 to 10 MPa, but is not particularly limited.
【００２１】本発明の不織布は、適切な大きさに裁断す
ることによって業務用あるいは家庭用の掃除シート、各
種清拭材等の用途に好適に用いることができる。また、
裁断したシートを折り畳み、端部を熱圧着、縫製などの
方法によって袋状あるいは手袋状に形成し、ハンディワ
イパー等としても好適に用いることができる。The nonwoven fabric of the present invention can be suitably used for applications such as business-use or home-use cleaning sheets and various wiping materials by cutting the nonwoven fabric into an appropriate size. Also,
The cut sheet is folded, and the end is formed into a bag shape or a glove shape by a method such as thermocompression bonding or sewing, and can be suitably used as a handy wiper or the like.
【００２２】[0022]
【実施例】以下、本発明の実施例および比較例により、
本発明をより具体的に説明する。なお、以下の実施例お
よび比較例における目付量、厚さ、嵩密度、引張強さ、
弧状繊維ループ数、および捕塵量の評価または測定は、
下記の方法にしたがって行った。EXAMPLES Hereinafter, Examples and Comparative Examples of the present invention will be described.
The present invention will be described more specifically. The basis weight, thickness, bulk density, tensile strength in the following Examples and Comparative Examples,
Evaluation or measurement of the number of arc-shaped fiber loops and the amount of dust collection
It carried out according to the following method.
【００２３】目付量 ＪＩＳ Ｌ１９０６の４．２に記載の方法に準拠して求
めた。The basis weight was determined in accordance with the method described in 4.2 of JIS L1906.
【００２４】厚さ ＪＩＳ Ｌ１９０６の４．１に記載の方法にしたがって
荷重２ｋＰａで測定した。The thickness was measured at a load of 2 kPa according to the method described in 4.1 of JIS L1906.
【００２５】嵩密度 上記目付量と厚さから算出した。Bulk density Calculated from the above basis weight and thickness.
【００２６】引張強さ ＪＩＳ Ｌ１９０６の４．３．１に記載の方法にしたが
って測定した。Tensile strength Measured according to the method described in JIS L1906, 4.3.1.
【００２７】弧状繊維ループ数 ５ｃｍ×５ｃｍの正方形に切り出した試験片を、正方形
の辺方向に２つ折りし、折れ線部分を顕微鏡で１０倍に
拡大して写真撮影して、弧状繊維ループ数の本数を計数
した。このとき、折れ線の外側に０．５ｍｍ以上浮き出
た弧状繊維ループのみを対象として計数した（図１参
照）。Number of arc-shaped fiber loops A test piece cut into a square of 5 cm × 5 cm was folded in two in the side direction of the square, and the broken line portion was magnified 10 times with a microscope and photographed. Was counted. At this time, counting was performed only on the arc-shaped fiber loops that protruded 0.5 mm or more outside the broken line (see FIG. 1).
【００２８】捕塵量 フローリング板上の２４０ｍｍ×２４０ｍｍの範囲に、
試験塵埃として、ＪＩＳ Ｚ ８９０１-1984 （試験用
ダスト）に記載の８種の粉塵１．７ｇを表面に均一に散
布した。次に、５ｃｍ×２０ｃｍ×３ｍｍの鉄板に把手
を取り付けてなる治具（総重量３２０ｇ）の底面に、５
ｃｍ×２０ｃｍの寸法に切り出した不織布試験片を固定
した。前記粉塵を散布したフローリング板上に治具を置
き、不織布試験片をフローリング板の表面に当接しなが
ら、治具の長手方向に、散布した試験塵埃の一端から他
端まで、治具を約６秒間で摺動し、不織布試験片によっ
て捕集された粉塵の重量を測定した。この値を不織布試
験片の断面積（０．０１ｍ2 ）で除して、試験片の単位
面積当りの捕塵量を求めた。また、試験塵埃として、市
販のパン粉４．５ｇを用いて、同じ試験を行い、不織布
試験片の単位面積当りの捕塵量を求めた。[0028] Dust collection amount In a range of 240 mm x 240 mm on the flooring plate,
As the test dust, 1.7 g of eight kinds of dust described in JIS Z 8901-1984 (test dust) was uniformly dispersed on the surface. Next, on the bottom of a jig (total weight: 320 g), which has a handle attached to a 5 cm x 20 cm x 3 mm iron plate,
A nonwoven fabric test piece cut into a size of cm × 20 cm was fixed. The jig is placed on the flooring plate on which the dust is sprayed, and while the nonwoven fabric test piece is in contact with the surface of the flooring plate, the jig is moved about 6 times from one end of the test dust to the other end in the longitudinal direction of the jig. After sliding for 2 seconds, the weight of the dust collected by the nonwoven fabric test piece was measured. This value was divided by the cross-sectional area of the nonwoven fabric test piece (0.01 m 2 ) to obtain the amount of dust collected per unit area of the test piece. The same test was performed using 4.5 g of commercially available bread crumbs as the test dust, and the amount of dust per unit area of the nonwoven fabric test piece was determined.
【００２９】（実施例１）スパンボンド法により、繊度
３デニールのポリプロピレン繊維からなる、目付量１７
ｇ／ｍ2 の不織布ウェブを製造した。次に、この不織布
ウェブを、１５５℃のエンボスロールによって線圧５５
ｋｇ／ｃｍでエンボス処理して、熱融着部の合計面積の
割合が１０．２％、厚さ０．１５ｍｍの不織布を製造し
た。用いたエンボスロールは、個々のドットが０．４８
ｍｍ角の正方形で、ドットの中心間距離１．５ｍｍのも
のを用いた。次に繊度２デニール、繊維長５１ｍｍ、捲
縮数１５個／インチのポリエステル短繊維を用い、カー
ド機でウェブを形成して前記スパンボンド不織布に積層
した。次に、該不織布に対して針の断面形状が三角形で
ある針番手４０のフェルト針を用い、第１段のパンチ数
５０個／ｃｍ、針深さ１６ｍｍ、第２段は裏面から、パ
ンチ数４４個／ｃｍ、針深さ１２ｍｍでニードルパンチ
加工を行って、清拭材用不織布を製造した。得られた清
拭材用不織布について、目付量、厚さ、嵩密度、引張強
さ、弧状繊維ループ数および捕塵量の評価または測定を
行った。結果を表１に示す。(Example 1) A basis weight of 17 denier polypropylene fiber was formed by a spun bond method.
g / m 2 of nonwoven web was produced. Next, the nonwoven fabric web is subjected to a linear pressure 55
Embossing was performed at kg / cm to produce a nonwoven fabric having a total area of the heat-sealed portion of 10.2% and a thickness of 0.15 mm. The embossing roll used had 0.48 individual dots.
A square of mm square having a dot center distance of 1.5 mm was used. Next, using a polyester short fiber having a fineness of 2 denier, a fiber length of 51 mm, and a crimp number of 15 / inch, a web was formed by a carding machine and laminated on the spunbonded nonwoven fabric. Next, a felt needle having a needle count of 40 having a triangular cross section was used for the nonwoven fabric, the number of punches in the first stage was 50 / cm, the needle depth was 16 mm, and the number of punches in the second stage was from the back side. Needle punching was performed at 44 needles / cm and a needle depth of 12 mm to produce a nonwoven fabric for a wiping material. The obtained nonwoven fabric for wiping material was evaluated or measured for the basis weight, thickness, bulk density, tensile strength, number of arc-shaped fiber loops, and dust collection amount. Table 1 shows the results.
【００３０】（実施例２）目付量が２０ｇ／ｍ2 である
以外は実施例１と同様にしてスパンボンド不織布を形成
した。この厚さは０．１９ｍｍであった。次に繊度１．
５デニール、繊維長４０ｍｍ、捲縮数１５個／インチの
ポリエステル短繊維を用いカード機で約１５ｇ／ｍ2 の
ウェブを形成し、スパンボンド不織布に積層し、ノズル
径０．１ｍｍ、ノズル間隙１．０ｍｍのノズルを用い、
１段目５ＭＰａ、２段目８ＭＰａ、加工速度２．５ｍ／
ｍｉｎで水流交絡させた。さらに、該複合不織布のスパ
ンボンド不織布側に前記と同様なポリエステル短繊維ウ
ェブを積層し、前記と同様の条件で水流交絡させて、清
拭材用不織布を製造した。得られた清拭材用不織布につ
いて、目付量、厚さ、嵩密度、引張強さ、弧状繊維ルー
プ数、および捕塵量の評価または測定を行った。結果を
表１に示す。Example 2 A spunbonded nonwoven fabric was formed in the same manner as in Example 1 except that the basis weight was 20 g / m 2 . This thickness was 0.19 mm. Next, fineness
Approximately 15 g / m 2 web is formed by a carding machine using polyester denier of 5 denier, 40 mm in fiber length and 15 crimps / inch, laminated on spunbonded nonwoven fabric, nozzle diameter 0.1 mm, nozzle gap 1 Using a 0.0 mm nozzle,
First stage 5MPa, second stage 8MPa, processing speed 2.5m /
Water entangled for min. Further, a polyester short fiber web similar to that described above was laminated on the spunbonded nonwoven fabric side of the composite nonwoven fabric, and subjected to hydroentanglement under the same conditions as above to produce a nonwoven fabric for a wiping material. The obtained nonwoven fabric for wiping material was evaluated or measured for the basis weight, thickness, bulk density, tensile strength, number of arc-shaped fiber loops, and dust collection amount. Table 1 shows the results.
【００３１】（比較例１）繊度３デニール、繊維長５１
ｍｍ、捲縮数１５個／インチの熱融着性芯鞘型ポリエス
テル短繊維を用い、カード機でウェブを形成し、次に１
３０℃に設定した熱ロール間を通して短繊維間を熱ボン
ディングして目付量８０ｇ／ｍ2 の清掃材用不織布を製
造した。得られた不織布について、目付量、厚さ、嵩密
度、引張強さ、弧状繊維ループ数、および捕塵量の評価
または測定を行った。結果を表１に示す。Comparative Example 1 Fineness 3 denier, fiber length 51
A web is formed on a carding machine using a heat-fusible core-sheath type polyester short fiber having a crimp number of 15 mm / inch and a carding machine.
The short fibers were heat-bonded through a heat roll set at 30 ° C. to produce a nonwoven fabric for a cleaning material having a basis weight of 80 g / m 2 . The obtained nonwoven fabric was evaluated or measured for the basis weight, thickness, bulk density, tensile strength, number of arc-shaped fiber loops, and dust collection amount. Table 1 shows the results.
【００３２】（比較例２）実施例２のポリエステル短繊
維ウェブを、繊度１．５デニール、繊維長４０ｍｍ、捲
縮数１５個／インチのレーヨン短繊維にかえ、ウェブの
目付量を約２５ｇ／ｍ2 にした以外は実施例２と同様に
して、清拭材用不織布を得、目付量、厚さ、嵩密度、引
張強さ、弧状繊維ループ数、および捕塵量の評価または
測定を行った。結果を表１に示す。Comparative Example 2 The polyester staple fiber web of Example 2 was replaced with rayon staple fiber having a denier of 1.5 denier, a fiber length of 40 mm and a number of crimps of 15 / inch, and the basis weight of the web was about 25 g / A nonwoven fabric for a wiping material was obtained in the same manner as in Example 2 except that m 2 was used, and evaluation or measurement of the basis weight, thickness, bulk density, tensile strength, number of arc-shaped fiber loops, and dust collection amount was performed. Was. Table 1 shows the results.
【００３３】 [0033]
【００３４】[0034]
【発明の効果】本発明の清拭材用不織布は、土埃等の小
さな塵埃の吸着、保持性能に優れることはもとより、パ
ン屑や髪の毛、綿屑などの大きな塵埃の捕集性能にも優
れ、かつ低コストで製造することができるものである。
さらに、本発明の不織布は嵩高く、柔軟性を有するため
に、畳の上など清掃面が凸凹したところに用いても凹部
の塵埃を効率よく捕捉することができるだけでなく、清
掃面の傷付き防止効果をも有する。The nonwoven fabric for a wiping material of the present invention is excellent not only in the performance of adsorbing and holding small dust such as dust, but also in the performance of collecting large dust such as bread dust, hair, and cotton dust. And it can be manufactured at low cost.
Further, since the nonwoven fabric of the present invention is bulky and flexible, it can not only efficiently capture dust in the concave portion even when used on an uneven surface such as a tatami mat, but also has a scratch on the cleaning surface. It also has a preventive effect.
【００３５】また、本発明の製造方法は、その清拭材用
不織布を簡略な工程で容易にかつ低コストで製造するこ
とができる。Further, according to the manufacturing method of the present invention, the nonwoven fabric for a wiping material can be easily manufactured at a low cost at a simple process.
【図１】本発明の清拭材用不織布の表面状態を説明する
模式図。FIG. 1 is a schematic diagram illustrating the surface state of a nonwoven fabric for a wiping material of the present invention.
１ 清拭材用不織布 ２ 弧状繊維ループ DESCRIPTION OF SYMBOLS 1 Nonwoven fabric for cleaning materials 2 Arc-shaped fiber loop
Claims (3)
積層され、スパンボンド不織布と短繊維が交絡している
複合不織布であって、目付量が２０〜１００ｇ／ｍ2 、
嵩密度が０．０２〜０．１０ｇ／ｃｍ3 、かつ、少なく
とも表裏いずれかの面において表面から０．５ｍｍ以上
浮き出た弧状繊維ループを５個／ｃｍ以上有することを
特徴とする嵩高な清拭材用不織布。1. A composite nonwoven fabric comprising a spunbonded nonwoven fabric as a base material, short fibers laminated thereon, and a spunbonded nonwoven fabric and short fibers entangled, having a basis weight of 20 to 100 g / m 2 ,
A bulky wiping characterized by having a bulk density of 0.02 to 0.10 g / cm < 3 > and having at least 5 / cm or more arc-shaped fiber loops protruding 0.5 mm or more from the surface on at least one of the front and back surfaces. Nonwoven fabric for materials.
着されており、目付量が５〜３０ｇ／ｍ2 、個々の熱融
着部の面積が２ｍｍ2 以下であり、かつ隣接する熱融着
部の中心間の距離が１〜５ｍｍであり、該スパンボンド
不織布の表面積に占める熱融着部の合計面積の割合が５
〜３０％である請求項１に記載の清拭材用不織布。2. The spunbonded nonwoven fabric is partially heat-sealed, the basis weight is 5 to 30 g / m 2 , the area of each heat-sealed portion is 2 mm 2 or less, and the heat-sealed portion is The distance between the centers of the fused portions is 1 to 5 mm, and the ratio of the total area of the thermally fused portions to the surface area of the spunbonded nonwoven fabric is 5 mm.
The nonwoven fabric for a wiping material according to claim 1, wherein the content is from 30% to 30%.
し、ニードルパンチ加工または水流交絡法によって交絡
することを特徴とする請求項１または２に記載の清拭材
用不織布の製造方法。3. The method for producing a nonwoven fabric for a wiping material according to claim 1, wherein the spunbonded nonwoven fabric and short fibers are laminated and entangled by needle punching or hydroentanglement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9177249A JPH1119015A (en) | 1997-07-02 | 1997-07-02 | Nonwoven fabric for wiping member and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9177249A JPH1119015A (en) | 1997-07-02 | 1997-07-02 | Nonwoven fabric for wiping member and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1119015A true JPH1119015A (en) | 1999-01-26 |
Family
ID=16027776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9177249A Pending JPH1119015A (en) | 1997-07-02 | 1997-07-02 | Nonwoven fabric for wiping member and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1119015A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005120566A (en) * | 2003-10-17 | 2005-05-12 | Reifenhaeuser Gmbh & Co Mas Fab | Fiber layer and method for producing the same |
| JP2008512580A (en) * | 2004-09-10 | 2008-04-24 | ファースト・クオリティー・ノンウォーヴンズ・インコーポレイテッド | Water-absorbing spun fused nonwoven fabric |
| JP2010029280A (en) * | 2008-07-25 | 2010-02-12 | Daio Paper Corp | Method of manufacturing wiping sheet, and wiping sheet |
| JP2011111708A (en) * | 2009-11-25 | 2011-06-09 | Toray Saehan Inc | Composite needle punching nonwoven fabric using different component material and production method thereof |
| WO2012042972A1 (en) | 2010-09-30 | 2012-04-05 | 花王株式会社 | Non-woven fabric and method for producing non-woven fabric |
| US8841507B2 (en) | 2010-08-20 | 2014-09-23 | The Procter & Gamble Company | Absorbent article and components thereof having improved softness signals, and methods for manufacturing |
| US8893347B2 (en) | 2007-02-06 | 2014-11-25 | S.C. Johnson & Son, Inc. | Cleaning or dusting pad with attachment member holder |
| US10639212B2 (en) | 2010-08-20 | 2020-05-05 | The Procter & Gamble Company | Absorbent article and components thereof having improved softness signals, and methods for manufacturing |
| JP2020105656A (en) * | 2018-12-27 | 2020-07-09 | 日本製紙クレシア株式会社 | Conjugate type nonwoven fabric and method for producing the same |
-
1997
- 1997-07-02 JP JP9177249A patent/JPH1119015A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005120566A (en) * | 2003-10-17 | 2005-05-12 | Reifenhaeuser Gmbh & Co Mas Fab | Fiber layer and method for producing the same |
| US8410007B2 (en) | 2004-09-10 | 2013-04-02 | First Quality Nonwovens, Inc. | Hydroengorged spunmelt nonwovens |
| JP2008512580A (en) * | 2004-09-10 | 2008-04-24 | ファースト・クオリティー・ノンウォーヴンズ・インコーポレイテッド | Water-absorbing spun fused nonwoven fabric |
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