JP2016141896A - Cleaning cloth manufacturing method - Google Patents

Cleaning cloth manufacturing method Download PDF

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JP2016141896A
JP2016141896A JP2015017125A JP2015017125A JP2016141896A JP 2016141896 A JP2016141896 A JP 2016141896A JP 2015017125 A JP2015017125 A JP 2015017125A JP 2015017125 A JP2015017125 A JP 2015017125A JP 2016141896 A JP2016141896 A JP 2016141896A
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polyester
nonwoven fabric
cleaning cloth
fiber web
short fiber
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木原 幸弘
Yukihiro Kihara
幸弘 木原
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Unitika Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a cleaning cloth with various wiping-off properties depending on an object to be wiped.SOLUTION: A polyester nonwoven fabric made of polyester long fibers is manufactured by a cleaning cloth manufacturing method. The cleaning cloth manufacturing method comprises following processes of: preparing the polyester nonwoven fabric made of the polyester long fibers with a cross-section shape formed by connecting low ends of substantially Y-shapes on upper, lower, right and left sides; forming a lot of holes in arbitrary shape on the polyester nonwoven fabric; and integrating the polyester nonwoven fabric and a short fiber web by placing the short fiber web on the polyester nonwoven fabric with a lot of holes, applying high pressure water flow from the short fiber web side and cross-connecting the short fibers and the fibers composing the polyester nonwoven fabric as well as cross-connecting the short fibers, which compose the short fiber web, with each other.SELECTED DRAWING: Figure 2

Description

本発明は、清拭性に優れた清掃布の製造方法に関するものである。   The present invention relates to a method for producing a cleaning cloth excellent in wiping properties.

従来より、不織布は使い捨ての拭き布として使用されている。そして、拭き取る対象物によって、拭き取る側の不織布の構成も様々な構造や形態のものが開発されている。   Conventionally, nonwoven fabrics have been used as disposable wipes. And the thing of various structures and forms is also developed about the structure of the nonwoven fabric by the side to wipe off by the target object to wipe off.

例えば、特許文献1には、ダストの捕集性と保持性に着目し、スパンボンド不織布の上に短繊維層を積層して一体化したシートであって、圧縮応力と圧縮応力緩和率が特定の範囲とすることにより、床上のクリーニング効果を向上させる技術が開示されている。   For example, Patent Document 1 is a sheet in which a short fiber layer is laminated and integrated on a spunbonded nonwoven fabric with attention focused on dust collection and retention, and compression stress and compression stress relaxation rate are specified. The technique which improves the cleaning effect on a floor by setting it as the range of this is disclosed.

しかしながら、この技術によれば、具体的な構成としては、ポリエステル長繊維不織布の上にポリエステル短繊維とポリプロピレン短繊維との混繊させたものを積層して交絡一体化したものであるが、特定の圧縮応力と圧縮応力緩和率を達成するための具体的な手法が記載されておらず、優れた効果を発揮させるためのパラメータを満足する不織布を得るためには、さらなる試行錯誤を要するものである。   However, according to this technology, the specific configuration is a mixture of polyester short fibers and polypropylene short fibers laminated on a polyester long fiber non-woven fabric, which is entangled and integrated. No specific method for achieving the compression stress and the relaxation rate of compression stress is described, and in order to obtain a nonwoven fabric that satisfies the parameters for exerting excellent effects, further trial and error are required. is there.

特開2007−154376号公報JP 2007-154376 A

本発明者は、様々な拭き取り対象物に応じた清掃布を容易に提供しうる方法について検討していた。一方、本発明者は、特殊な横断面形状を持つポリエステル不織布を開発した(特開2013−76162号公報)。このポリエステル不織布は、ポリエステル長繊維を構成繊維とする不織布であって、該ポリエステル長繊維の横断面形状が、略Y字の下端で上下左右に連結した形状であることを特徴とするポリエステル不織布であり、高剛性であるとともに、断面の凹部にてゴミの捕集性にも優れるという特性を持っている。   The inventor has studied a method that can easily provide a cleaning cloth corresponding to various objects to be wiped. On the other hand, this inventor developed the polyester nonwoven fabric which has a special cross-sectional shape (Unexamined-Japanese-Patent No. 2013-76162). This polyester non-woven fabric is a non-woven fabric comprising polyester long fibers as a constituent fiber, and the cross-sectional shape of the polyester long fibers is a shape connected to the upper, lower, left and right at the lower end of a substantially Y shape. In addition to being highly rigid, it also has the property of being excellent in the ability to collect dust at the concave section.

そして、この特殊な横断面形状を持つポリエステル不織布の特性を活かしながら、様々な拭き取り性を具備する清掃布が得られないかを検討していたところ、ポリエステル不織布に任意の孔を設け、この不織布と短繊維ウェブとを高圧水流により積層して一体化したところ、任意の孔に存在する短繊維ウェブが表出し、機能性が付与できることを見出した。本発明はかかる知見に基づくものである。したがって、本発明の課題は、拭き取り対象物に応じた様々な拭き取り性を具備する清掃布を提供することにある。   And while taking advantage of the characteristics of the polyester nonwoven fabric with this special cross-sectional shape, we were studying whether a cleaning cloth having various wiping properties could be obtained. And the short fiber web were laminated and integrated by a high-pressure water flow, and it was found that the short fiber web present in an arbitrary hole was exposed and the functionality could be imparted. The present invention is based on such knowledge. Therefore, the subject of this invention is providing the cleaning cloth which comprises the various wiping property according to the wiping target.

本発明は、上記課題を解決するものであって、
清掃布の製造方法であって、
ポリエステル長繊維で構成されてなるポリエステル不織布であって、前記ポリエステル長繊維の横断面形状は、略Y字の下端で上下左右に連結した

Figure 2016141896
形状(以下、「略Y4形状」という。)であるポリエステル不織布を準備する工程、
前記ポリエステル不織布に任意の形状の多数の孔を設ける工程、
前記多数の孔が設けられたポリエステル不織布の上に短繊維ウェブを載せて、高圧水流を施して、短繊維とポリエステル不織布を構成する繊維とを交絡させてポリエステル不織布と短繊維ウェブとを一体化するとともに、短繊維ウェブを構成する短繊維同士も交絡させる工程とから構成されることを特徴とする清掃布の製造方法を要旨とするものである。 The present invention solves the above problems,
A method of manufacturing a cleaning cloth,
A polyester non-woven fabric composed of polyester long fibers, wherein the cross-sectional shape of the polyester long fibers is connected to the top, bottom, left and right at the lower end of a substantially Y shape.
Figure 2016141896
Preparing a polyester nonwoven fabric having a shape (hereinafter referred to as “substantially Y4 shape”);
Providing a plurality of holes of any shape in the polyester nonwoven fabric,
The polyester nonwoven fabric and the short fiber web are integrated by placing a short fiber web on the polyester nonwoven fabric provided with a large number of holes and applying high-pressure water flow to entangle the short fibers and the fibers constituting the polyester nonwoven fabric. In addition, the gist of the present invention is a method for producing a cleaning cloth, characterized in that it comprises a step of interlacing short fibers constituting a short fiber web.

本発明の製造方法により得られる清掃布は、任意の多数の孔が設けられたポリエステル不織布と短繊維ウェブとが積層一体化したものである。そして、ポリエステル不織布の孔が設けられた箇所においては、短繊維ウェブのみが存在する。ポリエステル不織布側から見た際には、該不織布に設けられた任意の孔の個所は、短繊維ウェブのみが存在して、短繊維ウェブが表出することとなる。したがって、該不織布に設けた孔の箇所には、異なる形態であり、また異なる素材となる短繊維ウェブが表出し、不織布に設ける孔の形状や孔の配置を任意に選択することにより、短繊維ウェブのみが存在し表出する箇所を任意に設定することとなる。したがって、2枚の異なる素材が積層してなる布帛でありながら、両素材が表側(不織布側)に表出することとなり、それぞれの素材に応じた拭き取り性、ダストの捕集性、保持性等の機能を発揮するものとなる。   The cleaning cloth obtained by the production method of the present invention is a laminated nonwoven fabric of a polyester nonwoven fabric provided with an arbitrary number of holes and a short fiber web. And in the location in which the hole of the polyester nonwoven fabric was provided, only a short fiber web exists. When viewed from the polyester non-woven fabric side, only the short fiber web is present at any holes provided in the non-woven fabric, and the short fiber web is exposed. Therefore, the short fiber webs that are in different forms and are made of different materials are exposed at the holes provided in the nonwoven fabric, and the short fibers can be selected by arbitrarily selecting the shape and arrangement of the holes provided in the nonwoven fabric. The place where only the web exists and appears will be set arbitrarily. Therefore, even though it is a fabric formed by laminating two different materials, both materials will be exposed to the front side (nonwoven fabric side), and wiping properties, dust collecting properties, retention properties, etc. according to each material The function will be demonstrated.

本発明の製造方法においては、まず、ポリエステル不織布を準備する。そして、この不織布に、任意の多数の孔を設ける。ポリエステル不織布の構成繊維は、後述する高圧水流の作用によって、積層する短繊維と交絡一体化するものであるため、構成繊維間には、短繊維と交絡しうる空隙を有することを要する。本発明においては、ポリエステル長繊維で構成されてなるポリエステル不織布であって、前記ポリエステル長繊維の横断面形状は、略Y字の下端で上下左右に連結した

Figure 2016141896
形状であるものを用いる。 In the production method of the present invention, first, a polyester nonwoven fabric is prepared. And any number of holes are provided in this nonwoven fabric. Since the constituent fibers of the polyester nonwoven fabric are entangled with the short fibers to be laminated by the action of a high-pressure water flow described later, it is necessary to have gaps that can be entangled with the short fibers between the constituent fibers. In this invention, it is a polyester nonwoven fabric comprised by the polyester long fiber, Comprising: The cross-sectional shape of the said polyester long fiber was connected to the upper and lower sides and the right and left by the substantially Y-shaped lower end.
Figure 2016141896
Use a shape.

このポリエステル長繊維は、その横断面形状に特徴を有するものである。この横断面形状は、図1に示すような略Y字を四個持つものである。そして、略Y字の下端1で上下左右に連結して、図2に示すような略Y4形状となっている。この略Y4形状は、四個の凹部2と八個の凸部3と四個の小凹部4とを有している。このように多数の凹部2、多数の小凹部4、多数の凸部3を持っており、嵩高性に優れているため、このポリエステル長繊維が集積されて長繊維相互間が結合していても、高圧水流の通過性が良好である。また、四個の凹部2の箇所に塵埃が捕捉されやすく、塵埃除去性に優れている。そして、中央の略+字部5と、略+字部5の各先端に連結された四個の略V字部6により、高剛性となっている。すなわち、六角形やY字等の単なる異形ではなく、剛性の高い略+字部5と略V字部6の組み合わせによって、より高剛性となるのである。かかるポリエステル長繊維を集積して、高剛性のポリエステル不織布を準備する。特に、ポリエステル長繊維相互間を熱融着することにより結合して、嵩高で且つ高剛性のポリエステル不織布を準備することができる。   This polyester continuous fiber is characterized by its cross-sectional shape. This cross-sectional shape has four substantially Y-characters as shown in FIG. And it is connected to the upper and lower sides and the right and left at the lower end 1 of a substantially Y shape, and has a substantially Y4 shape as shown in FIG. The substantially Y4 shape has four concave portions 2, eight convex portions 3, and four small concave portions 4. In this way, it has a large number of concave portions 2, a large number of small concave portions 4, and a large number of convex portions 3, and is excellent in bulkiness. Therefore, even if the polyester long fibers are accumulated and the long fibers are bonded to each other. The passage of high-pressure water flow is good. In addition, dust is easily captured at the four recesses 2 and is excellent in dust removal. Further, high rigidity is achieved by the substantially + -shaped part 5 at the center and the four approximately V-shaped parts 6 connected to the respective tips of the approximately + -shaped part 5. In other words, it is not a simple shape such as a hexagon or a Y-shape, but a higher rigidity is achieved by a combination of the substantially + -shaped portion 5 and the substantially V-shaped portion 6 having high rigidity. Such polyester long fibers are accumulated to prepare a highly rigid polyester nonwoven fabric. In particular, it is possible to prepare a bulky and high-rigidity polyester nonwoven fabric by bonding the long polyester fibers by heat fusion.

ポリエステル長繊維は、一種類のポリエステルからなるものでもよいが、低融点ポリエステルと高融点ポリエステルとを組み合わせるのが好ましい。すなわち、ポリエステル長繊維の横断面形状の略V字部6が低融点ポリエステルで形成され、略+字部5が高融点ポリエステルで形成された複合型するのが好ましい。複合型ポリエステル長繊維を集積した後、低融点ポリエステルを軟化又は溶融させた後、固化させることにより、ポリエステル長繊維相互間が低融点ポリエステルによって熱融着されたポリエステル不織布が得られるからである。また、ポリエステル不織布を構成するポリエステル長繊維の繊度は、10デシテックス以上であるのが好ましい。繊度が10デシテックス未満になると、長繊維の剛性が低下する傾向が生じ、ひいてはポリエステル不織布の剛性も低下する傾向が生じる。また、ポリエステル不織布の目付は、15〜70g/m2であるのが好ましい。目付が15g/m2未満になると、ポリエステル不織布の剛性が低下する傾向が生じる。目付が70g/m2を超えると、高圧水流の通過性が低下する傾向が生じる。なお、本発明で用いるポリエステル不織布の詳細については、本出願人が開示してなる特開2013−76182号公報に詳述されている。 The polyester continuous fiber may be composed of one kind of polyester, but it is preferable to combine a low-melting polyester and a high-melting polyester. That is, it is preferable to use a composite type in which the substantially V-shaped portion 6 of the cross-sectional shape of the polyester long fiber is formed of low-melting polyester and the substantially + -shaped portion 5 is formed of high-melting polyester. This is because the polyester nonwoven fabric in which the polyester long fibers are heat-fused with the low melting point polyester is obtained by softening or melting the low melting point polyester after the composite type polyester long fibers are accumulated and then solidifying. Moreover, it is preferable that the fineness of the polyester long fiber which comprises a polyester nonwoven fabric is 10 decitex or more. When the fineness is less than 10 dtex, the rigidity of the long fibers tends to decrease, and as a result, the rigidity of the polyester nonwoven fabric tends to decrease. Moreover, it is preferable that the fabric weight of a polyester nonwoven fabric is 15-70 g / m < 2 >. When the basis weight is less than 15 g / m 2 , the polyester nonwoven fabric tends to have low rigidity. If the basis weight exceeds 70 g / m 2 , the high-pressure water flow tends to deteriorate. The details of the polyester nonwoven fabric used in the present invention are described in detail in JP 2013-76182 A disclosed by the present applicant.

準備したポリエステル不織布には、任意の形状の多数の孔を設ける。孔に応じた箇所が後述する短繊維ウェブのみが存在する箇所となる。孔の形状は、円形、楕円形、正方形や長方形等の四角形、三角形、多角形、星形、数字や文字等も挙げられる。また、孔の個々の面積もまた任意に設計すればよいが、模様の顕著性を考慮すると20mm〜900mm程度が好ましい。孔の配置や配設密度についても、任意に設定すればよい。例えば、孔がタテヨコいずれの方向にも均等に配置してなるものや、千鳥状に配置してなるものであってもよく、比較的密集して配置している箇所と比較的まばらに散在している箇所とを設けてもよい。孔同士の間隔についても任意であり、例えば3〜50mm程度の範囲で適宜選択すればよい。配設密度についても、孔の大きさ等を考慮して適宜設計すればよく、例えば100cm中に10〜70個程度がよい。孔を設ける方法としては、例えば、打ち抜き加工によって任意の個所に任意の形状を打ち抜くことで設けるとよい。 The prepared polyester nonwoven fabric is provided with a number of holes having an arbitrary shape. A location corresponding to the hole is a location where only a short fiber web described later exists. Examples of the shape of the hole include a circle, an ellipse, a quadrangle such as a square and a rectangle, a triangle, a polygon, a star, a number, a letter, and the like. Further, the individual areas of the holes may also be designed arbitrarily but, considering the saliency pattern 20mm 2 ~900mm 2 is preferably about. What is necessary is just to set arbitrarily also about arrangement | positioning and arrangement | positioning density of a hole. For example, the holes may be arranged evenly in any direction, or they may be arranged in a staggered manner, and the holes are relatively densely scattered and scattered. May be provided. The interval between the holes is also arbitrary, and may be appropriately selected within a range of about 3 to 50 mm, for example. The arrangement density may be appropriately designed in consideration of the hole size and the like. For example, about 10 to 70 pieces in 100 cm 2 are preferable. As a method of providing the hole, for example, it is preferable to provide by punching an arbitrary shape at an arbitrary position by punching.

次いで、短繊維ウェブを準備する。短繊維ウェブを構成する短繊維としては、高圧水流を施した際の水流の作用によって、繊維が動き、交絡することができるものであればよく、その素材としては、コットン、レーヨンやリヨセル等のセルロース系繊維、ポリエステルやポリオレフィン等の熱可塑性繊維等が挙げられる。例えば、短繊維として、コットン、レーヨンやリヨセル等のセルロース系繊維を用いると吸液性が付与できるため、ウェットタイプの清掃布とする場合や、洗浄液の吸液性の観点から好ましく、また、液体の汚れを吸い取り性にも優れるため好ましい。また、短繊維ウェブ中に熱バインダー繊維を適宜混合させ、不織布と短繊維ウェブとを交絡一体化した後に、熱処理を施して熱バインダー繊維を溶融軟化させて、交絡した状態で熱接着することによって、より一層形態安定性に優れた清掃布を得ることができる。また、短繊維として、1デシテックス未満の極細繊維を用いることにより、細かい塵埃の捕集性を向上させることができる。短繊維の繊維長は、交絡性を考慮して、10〜70mm程度がよい。短繊維ウェブの目付は特に限定されず、所望により適宜選択すればよいが、15〜100g/m程度がよい。 A short fiber web is then prepared. The short fiber constituting the short fiber web may be any fiber as long as the fiber can move and entangle by the action of the water flow when the high-pressure water flow is applied, and the material thereof is cotton, rayon, lyocell, etc. Examples thereof include cellulose fibers, and thermoplastic fibers such as polyester and polyolefin. For example, if cellulose fibers such as cotton, rayon and lyocell can be used as short fibers, liquid absorbency can be imparted. Therefore, when a wet type cleaning cloth is used, it is preferable from the viewpoint of liquid absorbency of the cleaning liquid, It is preferable because it is excellent in absorbing dirt. In addition, by appropriately mixing the thermal binder fibers in the short fiber web, entanglement and integration of the nonwoven fabric and the short fiber web, heat treatment is performed to melt and soften the thermal binder fibers, and heat-bond in the entangled state Thus, it is possible to obtain a cleaning cloth that is further excellent in form stability. Moreover, the collection property of fine dust can be improved by using an ultrafine fiber of less than 1 dtex as the short fiber. The fiber length of the short fiber is preferably about 10 to 70 mm in consideration of confounding property. The basis weight of the short fiber web is not particularly limited and may be appropriately selected as desired, but is preferably about 15 to 100 g / m 2 .

上記の多数の孔を設けたポリエステル不織布の上に短繊維ウェブを載せて、ポリエステル不織布と短繊維ウェブとの積層体を多孔性支持体に担持し、そのとき、ポリエステル不織布が、多孔性支持体側に位置するように設置して、短繊維ウェブ側から高圧水流を施す。短繊維ウェブ側から高圧水流を施して、高圧水流を短繊維に直接作用させることにより、短繊維同士あるいは短繊維と不織布を構成する繊維とをより効率よく交絡して一体化する。高圧水流は、一般的に、孔径0.05〜2.0mmの噴射孔から、2〜14MPaの圧力で水が噴射されて得られるものである。   A short fiber web is placed on the polyester nonwoven fabric provided with a large number of holes, and a laminate of the polyester nonwoven fabric and the short fiber web is supported on the porous support, and the polyester nonwoven fabric is on the porous support side. The high-pressure water stream is applied from the short fiber web side. By applying a high-pressure water flow from the short fiber web side and causing the high-pressure water flow to directly act on the short fibers, the short fibers or the short fibers and the fibers constituting the nonwoven fabric are entangled and integrated more efficiently. The high-pressure water flow is generally obtained by injecting water at a pressure of 2 to 14 MPa from an injection hole having a hole diameter of 0.05 to 2.0 mm.

高圧水流を施す際にポリエステル不織布と短繊維ウェブとの積層体を担持する多孔性支持体は、10〜40メッシュの粗目織物(ここで、10メッシュとは、2.54cmあたりの経糸および/または緯糸の本数が10本の織物をいう)を用いると、短繊維ウェブには、粗目織物の開口に応じた凹凸模様を付与することができる。すなわち、ポリエステル不織布の孔を設けた箇所に存在する短繊維ウェブは、高圧水流の作用により、多孔性支持体である粗目織物に直に接する。そして、粗目織物と接した状態で、高圧水流の作用を受けるため、粗目織物を構成する経糸、緯糸、およびその糸同士の交点であるナックル部分に存在している短繊維が粗目織物の開口部分に移動し、この移動により短繊維の存在密度差が生じ、ポリエステル不織布の孔を設けた箇所に存在する短繊維ウェブには、多孔性支持体である粗目織物の形状に応じた凹凸模様が付与されるのである。このとき、短繊維ウェブに付与された凹凸模様における凹部は、繊維が存在しない開口となることもある。   A porous support for carrying a laminate of a polyester nonwoven fabric and a short fiber web when a high-pressure water stream is applied is a coarse woven fabric of 10 to 40 mesh (where 10 mesh is a warp yarn per 2.54 cm and / or When the weft is a woven fabric having ten weft yarns), a concavo-convex pattern corresponding to the opening of the coarse woven fabric can be imparted to the short fiber web. That is, the short fiber web present at the location where the holes of the polyester nonwoven fabric are provided is in direct contact with the coarse woven fabric which is the porous support by the action of the high-pressure water flow. And since it receives the action of a high-pressure water stream in contact with the coarse woven fabric, the warp, the weft, and the short fibers existing at the knuckle portion that is the intersection of the yarns are the opening portions of the coarse woven fabric. Due to this movement, the difference in density of short fibers is generated, and the short fiber web present at the location where the holes of the polyester nonwoven fabric are provided is provided with a concavo-convex pattern according to the shape of the coarse woven fabric which is a porous support. It is done. At this time, the recessed part in the uneven | corrugated pattern provided to the short fiber web may become opening which a fiber does not exist.

一体化した積層体には、高圧水流による水分が含まれているので、乾燥して水分を除去し、清掃布を得る。   Since the laminated body contains moisture from the high-pressure water stream, the moisture is removed by drying to obtain a cleaning cloth.

以上のようにして得られた清掃布は、任意の多数の孔が設けられたポリエステル不織布と短繊維ウェブとが積層一体化したものであり、ポリエステル不織布に設けた孔の箇所においては、短繊維ウェブのみが存在し表出することとなる。したがって、2枚の異なる素材が積層してなる積層体でありながら、両素材が表側(ポリエステル不織布側)に表出することとなり、それぞれの素材に応じた機能を発揮するものとなる。例えば、ポリエスエル不織布は、剛性があり、また、こびり付いた汚れの掻き取り性や、比較的大きな汚れやゴミの捕集性に優れるものであり、短繊維ウェブは、短繊維の素材を適宜選択することによってさらなる機能性を付与することができる。例えば、吸水性を有するセルロース系繊維を用いることにより、水分等の拭き取り性を向上させることができ、また、ウェット状態で使用するウェットワイパーとしての使用に適したものとなる。また、極細繊維を用いることにより、短繊維ウェブの個所では細かな塵埃を捕集しやすく、清掃布として、大きな汚れやゴミと細かな汚れや塵埃の両者を一枚の布で拭い取ることができる。   The cleaning cloth obtained as described above is obtained by laminating and integrating a polyester non-woven fabric provided with an arbitrary number of holes and a short fiber web, and the short fibers are provided at the holes provided in the polyester non-woven fabric. Only the web is present and expressed. Therefore, although it is a laminated body formed by laminating two different materials, both materials are exposed to the front side (polyester nonwoven fabric side), and functions corresponding to the respective materials are exhibited. For example, a polyester nonwoven fabric is rigid, and is excellent in scraping off stuck dirt, and relatively easy to collect large dirt and dust. For the short fiber web, a short fiber material is appropriately selected. Further functionality can be imparted. For example, by using cellulosic fibers having water absorption, it is possible to improve the wiping property of moisture and the like, and it is suitable for use as a wet wiper used in a wet state. In addition, by using ultrafine fibers, it is easy to collect fine dust at the location of the short fiber web, and as a cleaning cloth, both large dirt and dust and fine dirt and dust can be wiped with one cloth. it can.

本発明に係る清掃布は、特殊な断面形状を有する長繊維からなるポリエステル不織布と短繊維ウェブとが積層されたものであり、ポリエステル不織布に設けた任意の孔の個所は短繊維ウェブのみが存在することから、2枚の異なる素材が積層してなる積層体でありながら、両素材が表側(ポリエステル不織布側)に表出することとなり、それぞれの形態・素材に応じた様々な拭き取り機能を発揮する。   The cleaning cloth according to the present invention is formed by laminating a polyester nonwoven fabric composed of long fibers having a special cross-sectional shape and a short fiber web, and only the short fiber web exists at any hole provided in the polyester nonwoven fabric. Therefore, both materials are exposed to the front side (polyester non-woven fabric side) even though it is a laminate of two different materials, and exhibits various wiping functions according to each form and material. To do.

実施例
[ポリエステル不織布の準備]
ジカルボン酸成分としてテレフタル酸(TPA)92mol%及びイソフタール酸(IPA)8mol%を用い、ジオール成分としてエチレングリコール(EG)100mol%を用いて共重合し、低融点ポリエステル(相対粘度〔ηrel〕1.44、融点230℃)を得た。この低融点ポリエステルに、結晶核剤として4.0質量%の酸化チタンを添加して、低融点ポリエステル樹脂を準備した。一方、ジカルボン酸成分としてテレフタル酸(TPA)100mol%とジオール成分としてエチレングリコール(EG)100mol%を用いて共重合し、高融点ポリエステル樹脂(ポリエチレンテレフタレート、相対粘度〔ηrel〕1.38、融点260℃)を準備した。そして、図3に示したノズル孔を用い、V字部に低融点ポリエステル樹脂を供給し、+字部に高融点ポリエステル樹脂を供給して、紡糸温度285℃、単孔吐出量8.33g/分で溶融紡糸した。なお、低融点ポリエステル樹脂の供給量と高融点ポリエステル樹脂の供給量の重量比は、1:2であった。
Example [Preparation of polyester nonwoven fabric]
The dicarboxylic acid component is 92 mol% terephthalic acid (TPA) and isophthalic acid (IPA) 8 mol%, and the diol component is ethylene glycol (EG) 100 mol%. 44, melting point 230 ° C.). To this low melting point polyester, 4.0% by mass of titanium oxide was added as a crystal nucleating agent to prepare a low melting point polyester resin. On the other hand, 100 mol% of terephthalic acid (TPA) as a dicarboxylic acid component and 100 mol% of ethylene glycol (EG) as a diol component were copolymerized to obtain a high melting point polyester resin (polyethylene terephthalate, relative viscosity [ηrel] 1.38, melting point 260). ℃) was prepared. Then, using the nozzle hole shown in FIG. 3, a low melting point polyester resin is supplied to the V-shaped part, and a high melting point polyester resin is supplied to the + -shaped part, and the spinning temperature is 285 ° C., the single hole discharge rate is 8.33 g / Melt spun in minutes. In addition, the weight ratio of the supply amount of the low melting point polyester resin and the supply amount of the high melting point polyester resin was 1: 2.

ノズル孔から排出されたフィラメント群を、2m下のエアーサッカー入口に導入し、複合型ポリエステル長繊維の繊度が17デシテックスとなるように牽引した。エアーサッカー出口から排出された複合型ポリエステル長繊維群を開繊装置にて開繊した後、移動するネット製コンベア上に集積し、繊維ウェブを得た。この繊維ウェブを、表面温度が213℃のエンボスロール(各エンボス凸部先端の面積は0.7mm2で、ロール全面積に対するエンボス凸部の占める面積率は15%)とフラットロールからなる熱融着装置に導入し、両ロール間の線圧294N/cmの条件として、複合型ポリエステル長繊維相互間を低融点成分で熱融着して、目付40g/m2のポリエステル不織布を得た。 The filament group discharged from the nozzle hole was introduced into the air soccer entrance 2 m below and pulled so that the fineness of the composite polyester long fiber was 17 dtex. The composite polyester long fiber group discharged from the air soccer exit was opened using a fiber opening device, and then collected on a moving net conveyor to obtain a fiber web. This fiber web is heat-fused with a flat roll and an embossing roll having a surface temperature of 213 ° C. (the area at the tip of each embossing protrusion is 0.7 mm 2 and the area ratio of the embossing protrusion relative to the total area of the roll is 15%). The polyester non-woven fabric having a basis weight of 40 g / m 2 was obtained by heat-sealing the composite polyester long fibers with a low melting point component as a condition of a linear pressure of 294 N / cm between both rolls.

[不織布に孔を設ける工程]
上記したポリエスエル不織布に100mmの正方形の形状の孔を、配設密度25個/100cmで配置するように打ち抜き加工を行い、多数の孔が設けられた長繊維不織布を得た。
[Step of forming holes in the nonwoven fabric]
The above-described polyester nonwoven fabric was punched so that 100 mm 2 square-shaped holes were arranged at an arrangement density of 25/100 cm 2 to obtain a long-fiber nonwoven fabric provided with a large number of holes.

[短繊維ウェブの準備]
一方、精練・漂白したコットン繊維(繊維長約25〜35mm)を用いて、大和機工株式会社製のサンプルローラーカード機にて目付30g/m2のコットンウェブを作成した。
[Preparation of short fiber web]
On the other hand, using a scoured and bleached cotton fiber (fiber length of about 25 to 35 mm), a cotton web having a basis weight of 30 g / m 2 was prepared using a sample roller card machine manufactured by Yamato Kiko Co., Ltd.

[清掃布の製造]
上記した孔が設けられたポリエステル不織布の上に、上記したコットンウェブを積層し、二層積層体を作成した。そして、この二層積層体を、16メッシュのステンレス製粗目織物(経糸および緯糸ともに16本/2.54cm)上に載せ、ノズル径0.13mm、水圧8.3MPaの条件で、ポリエステル不織布の表面に積層されたコットンウェブ側から高圧水流を施し、一体化した二層積層体を得た。一体化した二層積層体から水分を乾燥除去し、本発明の清掃布を得た。
得られた清掃布においては、ポリエステル不織布に設けた正方形の孔の個所はコットンウェブのみが存在し、その箇所のコットンウェブには、16メッシュの粗目織物に応じた凹凸模様が付与されていた。
[Manufacture of cleaning cloth]
The above-mentioned cotton web was laminated on the polyester nonwoven fabric provided with the above-mentioned holes, thereby creating a two-layer laminate. Then, this two-layer laminate was placed on a 16-mesh stainless coarse woven fabric (16 warps and 2.54 cm for both warp and weft) and the surface of the polyester nonwoven fabric under the conditions of a nozzle diameter of 0.13 mm and a water pressure of 8.3 MPa. A high pressure water flow was applied from the side of the cotton web laminated to obtain an integrated two-layer laminate. Water was dried and removed from the integrated two-layer laminate to obtain the cleaning cloth of the present invention.
In the obtained cleaning cloth, only the cotton web was present at the location of the square holes provided in the polyester nonwoven fabric, and the unevenness pattern corresponding to the coarse mesh of 16 mesh was given to the cotton web at that location.

得られた清掃布を8cm×8cmの大きさに裁断し、この清掃布片に水を浸した後、ローラーでしぼって、水分を清掃布片に含浸させた(清掃布片の質量に対する含浸させた水分の質量の割合を示す保水率が約200wt%)。この水分を含浸させた清掃布片を用いて、電子レンジ内の汚れた箇所の上を8回ほど往復させて拭き取ったところ、固くこびり付いていた食べ物や油汚れは、きれいに拭い取られており、また、清掃布片に含浸してなる水分が電子レンジ内の拭き取った個所にほぼ残ることなく、優れた清掃性を発揮した。   The obtained cleaning cloth was cut into a size of 8 cm × 8 cm, water was immersed in the cleaning cloth piece, and then squeezed with a roller to impregnate the cleaning cloth piece (impregnation with respect to the mass of the cleaning cloth piece). The water retention rate indicating the ratio of the mass of water is about 200 wt%). Using this cleaning cloth impregnated with water, the food and oil stains that were stuck firmly were wiped cleanly when they were wiped back and forth about 8 times on the dirty part in the microwave oven. Moreover, the water | moisture content impregnated in the cleaning cloth piece showed the outstanding cleaning property, without remaining in the location wiped off in the microwave oven.

本発明で用いるポリエステル長繊維の横断面形状である略Y4形状の一つの略Y字を示した図である。It is the figure which showed one substantially Y character of the substantially Y4 shape which is the cross-sectional shape of the polyester long fiber used by this invention. 本発明で用いるポリエステル長繊維の横断面形状である略Y4形状を示した図である。It is the figure which showed the substantially Y4 shape which is the cross-sectional shape of the polyester continuous fiber used by this invention. 実施例1で用いたポリエステル不織布を製造するときに用いる紡糸孔の形状を示した図である。It is the figure which showed the shape of the spinning hole used when manufacturing the polyester nonwoven fabric used in Example 1. FIG.

1 ポリエステル長繊維の横断面形状である略Y4形状の一つの略Y字の下端
2 略Y4形状で形成された凹部
3 略Y4形状で形成された凸部
4 略Y4形状で形成された小凹部
5 略Y4形状中の略+字部
6 略Y4形状中の略V字部
DESCRIPTION OF SYMBOLS 1 Lower end of one substantially Y shape of the substantially Y4 shape which is the cross-sectional shape of a polyester continuous fiber 2 The recessed part formed in the substantially Y4 shape 3 The convex part formed in the substantially Y4 shape 4 The small recessed part formed in the substantially Y4 shape 5 Substantially + -shaped part in approximately Y4 shape 6 Substantially V-shaped part in approximately Y4 shape

Claims (6)

清掃布の製造方法であって、
ポリエステル長繊維で構成されてなるポリエステル不織布であって、前記ポリエステル長繊維の横断面形状は、略Y字の下端で上下左右に連結した
Figure 2016141896
形状(以下、「略Y4形状」という。)であるポリエステル不織布を準備する工程、
前記ポリエステル不織布に任意の形状の多数の孔を設ける工程、
前記多数の孔が設けられたポリエステル不織布の上に短繊維ウェブを載せて、高圧水流を施して、短繊維とポリエステル不織布を構成する繊維とを交絡させてポリエステル不織布と短繊維ウェブとを一体化するとともに、短繊維ウェブを構成する短繊維同士も交絡させる工程とから構成されることを特徴とする清掃布の製造方法。
A method of manufacturing a cleaning cloth,
A polyester non-woven fabric composed of polyester long fibers, wherein the cross-sectional shape of the polyester long fibers is connected to the top, bottom, left and right at the lower end of a substantially Y shape.
Figure 2016141896
Preparing a polyester nonwoven fabric having a shape (hereinafter referred to as “substantially Y4 shape”);
Providing a plurality of holes of any shape in the polyester nonwoven fabric,
The polyester nonwoven fabric and the short fiber web are integrated by placing a short fiber web on the polyester nonwoven fabric provided with a large number of holes and applying high-pressure water flow to entangle the short fibers and the fibers constituting the polyester nonwoven fabric. And a process for producing the cleaning cloth, wherein the short fibers constituting the short fiber web are entangled with each other.
ポリエステル不織布に設ける多数の孔の個々の面積が、20mm〜900mmであることを特徴とする請求項1記載の清掃布の製造方法。 Individual areas of a large number of holes provided in the nonwoven polyester fabric, the production method of the cleaning cloth according to claim 1, characterized in that the 20mm 2 ~900mm 2. 短繊維ウェブが木綿繊維からなることを特徴とする請求項1または2記載の清掃布の製造方法。   The method for producing a cleaning cloth according to claim 1 or 2, wherein the short fiber web is made of cotton fibers. 高圧水流を施す際に短繊維ウェブとポリエステル不織布との積層体を担持する多孔性支持体が、10〜40メッシュの粗目織物であり、ポリエステル不織布の孔に相当する位置に存在する短繊維ウェブに、10〜40メッシュの粗目織物に応じる凹凸模様を付与することを特徴とする請求項1〜3のいずれか1項記載の清掃布の製造方法。   The porous support that supports the laminate of the short fiber web and the polyester nonwoven fabric when the high-pressure water stream is applied is a coarse woven fabric of 10 to 40 mesh, and the short fiber web that exists at a position corresponding to the pores of the polyester nonwoven fabric. The method for producing a cleaning cloth according to any one of claims 1 to 3, wherein an uneven pattern corresponding to a coarse woven fabric of 10 to 40 mesh is provided. ポリエステル長繊維が、略Y4形状の各々の略V字部が低融点ポリエステルよりなり、その他の略+字部が高融点ポリエステルよりなる複合型ポリエステル長繊維であって、該低融点ポリエステルの熱融着により、該複合型ポリエステル長繊維相互間が係合されてなるポリエステル不織布であることを特徴とする請求項1〜4のいずれか1項記載の清掃布の製造方法。   The polyester long fiber is a composite type polyester long fiber in which each substantially V-shaped portion of a substantially Y4 shape is made of a low-melting polyester, and the other substantially + -shaped portion is made of a high-melting polyester, The method for producing a cleaning cloth according to any one of claims 1 to 4, wherein the nonwoven fabric is a polyester nonwoven fabric in which the composite polyester long fibers are engaged with each other by wearing. 請求項1〜5のいずれか1項記載の製造方法により得られる清掃布。
The cleaning cloth obtained by the manufacturing method of any one of Claims 1-5.
JP2015017125A 2015-01-30 2015-01-30 Cleaning cloth manufacturing method Pending JP2016141896A (en)

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Citations (7)

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Publication number Priority date Publication date Assignee Title
JP2003183968A (en) * 2001-12-11 2003-07-03 Unitika Ltd Uneven nonwoven fabric with little thickness change and method for producing the same
JP2006511728A (en) * 2002-12-23 2006-04-06 キンバリー クラーク ワールドワイド インコーポレイテッド Entangled fabric with perforated nonwoven web
JP2006104629A (en) * 2004-10-08 2006-04-20 Unitika Ltd Spun lace nonwoven fabric imparted with uneven pattern and method for producing the same
JP2012132117A (en) * 2010-12-21 2012-07-12 Unitika Ltd Method for producing base fabric for skin-cleaning sheet
JP2013076182A (en) * 2011-09-30 2013-04-25 Unitika Ltd Polyester filament nonwoven fabric and method for manufacturing the same
JP2014177719A (en) * 2013-03-14 2014-09-25 Unitika Ltd Spunlaced composite nonwoven fabric
JP2015004144A (en) * 2013-06-21 2015-01-08 ユニチカ株式会社 Printed laminated nonwoven fabric

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003183968A (en) * 2001-12-11 2003-07-03 Unitika Ltd Uneven nonwoven fabric with little thickness change and method for producing the same
JP2006511728A (en) * 2002-12-23 2006-04-06 キンバリー クラーク ワールドワイド インコーポレイテッド Entangled fabric with perforated nonwoven web
JP2006104629A (en) * 2004-10-08 2006-04-20 Unitika Ltd Spun lace nonwoven fabric imparted with uneven pattern and method for producing the same
JP2012132117A (en) * 2010-12-21 2012-07-12 Unitika Ltd Method for producing base fabric for skin-cleaning sheet
JP2013076182A (en) * 2011-09-30 2013-04-25 Unitika Ltd Polyester filament nonwoven fabric and method for manufacturing the same
JP2014177719A (en) * 2013-03-14 2014-09-25 Unitika Ltd Spunlaced composite nonwoven fabric
JP2015004144A (en) * 2013-06-21 2015-01-08 ユニチカ株式会社 Printed laminated nonwoven fabric

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