JP6685498B2 - Multi-layered brush - Google Patents
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- JP6685498B2 JP6685498B2 JP2015201780A JP2015201780A JP6685498B2 JP 6685498 B2 JP6685498 B2 JP 6685498B2 JP 2015201780 A JP2015201780 A JP 2015201780A JP 2015201780 A JP2015201780 A JP 2015201780A JP 6685498 B2 JP6685498 B2 JP 6685498B2
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本発明は、掃除機ヘッドの吸い込み口に設けられる集塵ブラシや画像処理機等において静電気を除去するための除電ブラシ等のブラシ材の改良、更に詳しくは、ブラシ材としての柔軟性を損なわずにブラシ毛の本数を増加し、かつ、均一な配列密度を可能とし、しかも、種々の機能性を発揮させることもできる多層構造ブラシに関するものである。 The present invention is an improvement of a brush material such as a static elimination brush for removing static electricity in a dust collecting brush provided in a suction port of a cleaner head, an image processing machine, or the like, and more specifically, without impairing flexibility as a brush material. In particular, the present invention relates to a multi-layer structure brush capable of increasing the number of brush bristles, achieving a uniform array density, and exhibiting various functionalities.
従来、画像形成装置などの用紙取り扱い装置において静電気が発生すると、搬送などにおいて種々のトラブルを起こすことから、導電性素材を用いた除電ブラシを用紙に接触せしめて、この除電ブラシを介して接地する除電方法が行われており、例えば、＜特許文献１＞では、複数の導電性ブラシ毛がふたつ折りに屈曲して並列され、このブラシ毛の屈曲部側を織物構造により一体化した除電ブラシが提案されている。この織物構造による＜特許文献１＞の技術によれば、ブラシ毛の向きをブラシの長さ方向に対して交差する方向にして、多数本並んだシート状のブラシ材が容易に得られる。 Conventionally, when static electricity is generated in a paper handling device such as an image forming device, various troubles may occur during transportation. Therefore, a static elimination brush made of a conductive material is brought into contact with the paper and grounded via this static elimination brush. A static elimination method is performed, for example, in <Patent Document 1>, a static elimination brush in which a plurality of conductive brush bristles are folded in two and arranged in parallel, and the curved part side of the brush bristles is integrated by a woven structure is disclosed. Proposed. According to the technique of <Patent Document 1> based on this woven structure, a sheet-shaped brush material in which a large number of sheets are arranged with the direction of the brush bristles intersecting the length direction of the brush can be easily obtained.
しかしながら、実際の製造過程は、ブラシ毛の長さの２倍の細幅織物において、織物の両耳近傍だけに経糸を配列して導電性繊維束からなる緯糸を織物の両耳で折り返しながら製織して、織幅の中央をカットするものであるため、一つの緯入れ機構で１本の織物しか得られず、ブラシ毛の本数が少なく生産性が低くて製造コストが高い難点があった。 However, in the actual manufacturing process, in the case of a narrow width fabric twice the length of the brush bristles, the warp yarns are arranged only in the vicinity of both ears of the fabric, and the weft yarn made of the conductive fiber bundle is folded back at both ears of the fabric. Since the center of the weaving width is cut, only one woven fabric can be obtained by one weft inserting mechanism, and the number of brush bristles is small, the productivity is low, and the manufacturing cost is high.
また、＜特許文献２＞では、複数の導電性ブラシ毛がふたつ折りに屈曲して並列され、このブラシ毛の屈曲部側が２列の鎖編で一体に保持された経編技術による除電ブラシが提案されており、この経編技術であれば１台の経編機により多数本取りで編成することができるので高い生産性が得られることから、最近ではブラシ生産に多用されている Further, in <Patent Document 2>, a static elimination brush by a warp knitting technique in which a plurality of conductive brush bristles are bent in two folds and arranged in parallel, and the bent portions of the brush bristles are integrally held by two rows of chain knitting are disclosed. It has been proposed, and this warp knitting technique has been widely used for brush production recently because a high productivity can be obtained because a large number of knitting can be performed by one warp knitting machine.
しかしながら、複数本の繊維束からなるブラシ毛は編糸により拘束されているので、ブラシ毛束間に隙間が生じる問題があり、また、ブラシ毛の本数を増やす場合、ブラシ毛束自体の直径が増大してしまい、ブラシ毛として要求される柔軟性が損なわれて被接触体を傷つけてしまう懸念がある。 However, since the bristles composed of a plurality of fiber bundles are constrained by the knitting yarn, there is a problem that a gap is generated between the bristles, and when the number of the bristles is increased, the diameter of the bristles themselves is increased. There is a concern that the amount of the bristles will increase and the flexibility required for the bristles will be impaired and the contacted body will be damaged.
また、最近ではブラシ材は種々の用途に使われるようになり、しかも多機能性が要求されるケースも多いが、１種類のブラシ毛で多機能性を発揮させることは困難であることから、例えば、＜特許文献３＞のように、機能が異なる複数のブラシを積層して接合する方法が提案されているが、複数種のブラシの準備や、精度よく接合するための作業等は非常に面倒であり、製造コストが高くなるという問題があった。 In addition, recently, brush materials have come to be used for various purposes, and in many cases, multifunctionality is required, but it is difficult to exhibit multifunctionality with one type of brush bristles, For example, as in <Patent Document 3>, a method of stacking and bonding a plurality of brushes having different functions has been proposed, but preparation of a plurality of types of brushes, work for accurately bonding, and the like are extremely difficult. There is a problem that it is troublesome and the manufacturing cost becomes high.
本発明は、従来のブラシ材に上記のような問題があったことに鑑みて為されたものであり、その目的とするところは、ブラシ材としての柔軟性を損なわずにブラシ毛の本数を増加し、かつ、均一な配列密度を可能とし、しかも、種々の機能性を発揮させることもできる多層構造ブラシを提供することにある。 The present invention has been made in view of the above-described problems in conventional brush materials, and the object thereof is to reduce the number of brush bristles without impairing the flexibility of the brush material. It is an object of the present invention to provide a multi-layer structure brush that is capable of increasing the array density and is capable of exhibiting various functionalities.
本発明者が上記技術的課題を解決するために採用した手段を、添付図面を参照して説明すれば、次のとおりである。 Means adopted by the inventor for solving the above technical problems will be described below with reference to the accompanying drawings.
即ち、本発明は、繊維束から成るブラシ毛がＵ字状に折り返された状態で並列して、この折り返し部の近傍が経編組織の編目の鎖編糸で編成固定して一体化されたブラシ材であって、
前記ブラシ毛は複数の層を成しており、かつ、これらブラシ毛をそれぞれ異なる編目の鎖編糸に囲まれて互いに独立して拘束保持するという技術的手段を採用したことによって、多層構造ブラシを完成させた。
That is, according to the present invention, the brush bristles made of fiber bundles are arranged in parallel in a state of being folded back in a U shape, and the vicinity of the folded back portion is knitted and fixed by a chain knitting yarn of a warp knitting structure to be integrated . Brush material,
The brush bristles have a plurality of layers, and by adopting a technical means that these bristles are surrounded by chain knitting yarns of different stitches and restrained and held independently of each other, a multilayer structure brush is obtained. Was completed.
また、本発明は、繊維束から成るブラシ毛がＵ字状に折り返された状態で並列して、この折り返し部の近傍が経編組織の編目の鎖編糸で編成固定して一体化されたブラシ材であって、
前記ブラシ毛は複数の層を成して編目の鎖編糸により拘束保持されており、かつ、これら複数の層のうちの少なくとも２層間において、略等間隔で配列した一方のブラシ毛のブラシ毛束の立毛位置を、他方の層のブラシ毛のブラシ毛束の立毛位置の合間にするという技術的手段を採用することもできる。
Further, according to the present invention, the brush bristles made of a fiber bundle are arranged in parallel in a state of being folded back in a U shape, and the vicinity of the folding back portion is knitted and fixed by a chain knitting yarn of a warp knitting structure to be integrated . Brush material,
The brush bristles are made up of a plurality of layers and are held by a chain knitting yarn of a stitch , and at least two layers of the plurality of layers are arranged at substantially equal intervals. It is also possible to employ a technical means in which the bristle positions of the bundle are placed between the bristle positions of the bristle bundles of the bristles of the other layer.
また、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ毛を編成固定する経編組織を、表裏に編目列を有するダブルラッセル組織にするという技術的手段を採用することもできる。 Further, in order to solve the above-mentioned problems, the present invention provides, in addition to the above-mentioned means as necessary, a technical means of forming a warp knitting structure for knitting and fixing brush bristles into a double Russell structure having a stitch row on the front and back sides. It can also be adopted.
更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ毛の少なくとも１層のブラシ毛の素材を、他の層のブラシ毛の素材と異なるようにするという技術的手段を採用することもできる。 Furthermore, in order to solve the above problems, the present invention makes the material of the brush bristles of at least one layer of the brush bristles different from the material of the brush bristles of the other layers, in addition to the above-mentioned means as necessary. It is also possible to adopt the technical means.
更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ毛の少なくとも１層のブラシ毛の長さを、他の層のブラシ毛の長さと異なるようにするという技術的手段を採用することもできる。 Furthermore, in order to solve the above-mentioned problems, the present invention makes the length of the brush bristles of at least one layer of the brush bristles different from the length of the brush bristles of the other layers, in addition to the above-mentioned means as necessary. It is also possible to adopt the technical means of doing so.
更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ材の少なくとも１層のブラシ毛の折り返し数を、他の層のブラシ毛の折り返し数と異なるようにするという技術的手段を採用することもできる。 Furthermore, in order to solve the above problems, the present invention makes the number of folds of the brush bristles of at least one layer of the brush material different from the number of folds of the bristles of the other layers, in addition to the above-mentioned means as necessary. It is also possible to adopt the technical means of
更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ毛の一部を導電性を有する素材にするという技術的手段を採用することもできる。 Furthermore, in order to solve the above-mentioned problems, the present invention can employ a technical means in which, in addition to the above-mentioned means, a part of the brush bristles is made of a conductive material.
更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ毛の一部を防虫成分を練り込んだ防虫繊維にするという技術的手段を採用することもできる。 Furthermore, in order to solve the above-mentioned problems, the present invention may employ a technical means in which, in addition to the above-mentioned means, a part of the brush bristles is made into an insect-proof fiber in which an insect-controlling component is kneaded. .
更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ブラシ毛の折り返し部側の端部において、熱溶融繊維の編構造によってブラシ材の長さ方向に延びる凸状の取付凸部を設けるという技術的手段を採用することもできる。 Furthermore, in order to solve the above-mentioned problems, the present invention, in addition to the above-mentioned means as needed, extends in the length direction of the brush material by the knitting structure of the hot-melt fibers at the end of the brush bristles on the folded-back side. It is also possible to employ the technical means of providing a convex mounting protrusion.
本発明にあっては、繊維束から成るブラシ毛がＵ字状に折り返された状態で並列して、この折り返し部の近傍を経編組織で編成固定して、前記ブラシ毛は複数の層を成しており、かつ、これらブラシ毛をそれぞれ異なる鎖編糸に囲まれて互いに独立して拘束保持したことによって、ブラシ材としての柔軟性を損なわずにブラシ毛の本数を増加し、かつ、均一な配列密度を可能とし、しかも、種々の機能性を発揮させることもできる。 In the present invention, the brush bristles made of fiber bundles are arranged in parallel in a state of being folded back in a U shape, and the vicinity of the folding back part is knitted and fixed by a warp knitting structure, and the bristles have a plurality of layers. And each of these brush bristles are bound and held independently of each other by being surrounded by different chain knitting yarns, thereby increasing the number of brush bristles without impairing the flexibility as a brush material, and A uniform array density is possible, and various functionalities can be exhibited.
また、ブラシ毛が複数の層を成して鎖編糸により拘束保持して、かつ、これら複数の層のうちの少なくとも２層間において、略等間隔で配列した一方のブラシ毛のブラシ毛束の立毛位置を、他方の層のブラシ毛のブラシ毛束の立毛位置の合間にしたことによっても、ブラシ材としての柔軟性を損なわずにブラシ毛の本数を増加し、かつ、均一な配列密度を可能とし、しかも、種々の機能性を発揮させることができる。 In addition, the brush bristles form a plurality of layers and are restrained and held by the chain knitting yarn, and at least two layers among the plurality of layers are arranged at substantially equal intervals, and the brush bristles of one bristles are arranged. By setting the standing position between the standing positions of the bristles of the bristles of the other layer, the number of bristles can be increased without impairing the flexibility as a brush material, and a uniform array density can be obtained. It is possible and can exhibit various functionalities.
このように、ブラシ毛は少なくとも２層からなって一体化されており、各層のブラシ毛は互いに異なる鎖編糸により互いに分離されつつ繊維束単位で強固に拘束されているので、ブラシ毛密度を高めてもブラシ毛抜けを抑制することができる。 In this way, the brush bristles are made up of at least two layers, and the brush bristles in each layer are firmly bound in the fiber bundle unit while being separated from each other by different chain knitting yarns. Even if it is raised, it is possible to suppress the loss of bristles of the brush.
また、各層を異なる繊維素材としても、これらの繊維同士が混ざり合うことなく前後の位置関係で確実に分離されているので、各繊維素材の持つ機能を効果的に発揮させることができる。 Further, even if each layer is made of a different fiber material, these fibers are surely separated from each other in a front-rear positional relationship without being mixed with each other, so that the function of each fiber material can be effectively exerted.
更にまた、ブラシ毛の本数を増加することが容易であり、さらにブラシ毛の配列において隙間なく配列することができるので、ブラシ毛の密度を高めることができ、掃除機やクリーナー等において漏れなく塵埃を掃き出すことができる。 Furthermore, since it is easy to increase the number of brush bristles and the bristles can be arranged without any gaps, the density of the bristles can be increased, and dust can be collected without leak in a vacuum cleaner or cleaner. Can be swept out.
更にまた、必要に応じて、本発明の多層構造ブラシにおける複数層のブラシ毛をダブルラッセル組織で一体化させることができ、各層を別々に製造した後に合わせて縫合したりする手間が省け、しかも、各層間のブラシ毛の配列は編組織により均一に配列させることができる。 Furthermore, if necessary, the bristles of a plurality of layers in the multilayer structure brush of the present invention can be integrated with a double Russell structure, and it is possible to save the trouble of separately manufacturing each layer and then stitching them together. The arrangement of the brush bristles between the layers can be made uniform by the knitting structure.
更にまた、必要に応じて、ブラシの少なくとも１層のブラシ毛の素材を他の層のブラシ毛と異なる素材とすることができ、複数の機能を発揮させることが可能であり、更には、ブラシ毛を３層や４層として、中央部に比較的脆弱な機能性繊維の層を配置した場合であっても、外側に耐久性のある繊維を使用することにより、この機能性繊維を保護することができる。 Furthermore, if necessary, the material of the brush bristles of at least one layer of the brush can be made different from the material of the brush bristles of the other layers, and it is possible to exert a plurality of functions. Even if the hair has three or four layers and a relatively fragile functional fiber layer is arranged in the central portion, the functional fiber is protected by using the durable fiber on the outer side. be able to.
更にまた、必要に応じて、ブラシの少なくとも１層のブラシ毛の長さを他の層のブラシ毛の長さと異なる長さとすることができ、長いブラシ毛層の片側または両側に短いブラシ毛層を配置することによって、長いブラシ毛の倒れ変形の抑制や折れ防止効果などによって、耐久性のあるブラシとなる。 Furthermore, if desired, the length of the bristles of at least one layer of the brush can be different from the length of the bristles of the other layer, with short bristles on one or both sides of the long bristles. By arranging, the long-lasting bristles can be prevented from collapsing and deforming, and can be prevented from breaking.
更にまた、必要に応じて、ブラシ毛の一部を導電性を有する素材にすることができ、ブラシ毛と被接触体との摩擦による帯電に対して導電性素材を介して除電が可能となり、静電気による種々のトラブルを防ぐことができる。 Furthermore, if necessary, a part of the brush bristles can be made of a conductive material, and static electricity can be removed through the conductive material against charging due to friction between the brush bristles and the contacted body, Various troubles due to static electricity can be prevented.
更にまた、必要に応じて、ブラシ毛の一部を防虫成分を練り込んだ防虫繊維にすることができ、本発明の多層構造ブラシを住宅窓枠等のシール材として用いることにより、虫が防虫剤の匂いで窓枠近傍には近寄らないので、窓を開け閉めしても虫が室内へ侵入することを防ぐことができる。 Furthermore, if necessary, a part of the brush bristles can be made into insect-repellent fiber in which an insect-repellent component is kneaded. By using the multilayer structure brush of the present invention as a sealant for a housing window frame or the like, insects can be repelled by insects. Since the scent of the agent does not approach the vicinity of the window frame, insects can be prevented from entering the room even if the window is opened and closed.
更にまた、必要に応じて、ブラシ毛の折り返し部側の端部に、熱溶融繊維を含む編構造によってブラシの長さ方向に延びる凸状の取付凸部を設けることができ、この取付凸部の熱溶融性繊維の融点以上に加熱して型成形することによって、樹脂注入成形などの煩雑な成形加工を施すことなく、簡単に取付凸部を形成することができる。 Furthermore, if necessary, a convex attachment protrusion extending in the length direction of the brush can be provided at the end of the brush bristles on the folded-back side by a knitting structure containing hot-melt fibers. By heating at a temperature equal to or higher than the melting point of the heat-fusible fiber and performing mold molding, the mounting convex portion can be easily formed without performing complicated molding processing such as resin injection molding.
本発明を実施するための形態を具体的に図示した図面に基づいて更に詳細に説明すると、次のとおりである。 A mode for carrying out the present invention will be described in more detail with reference to the drawings specifically showing the following.
『第１実施形態』
本発明の第１実施形態を図１から図４に基づいて説明する。図中、符号１で指示するものはブラシ本体であり、符号２ａ、２ｂで指示するものは経編組織の編目であり、符号３ａ、３ｂで指示するものは繊維束から成るブラシ毛である。
"First embodiment"
A first embodiment of the present invention will be described based on FIGS. 1 to 4. In the figure, what is designated by the reference numeral 1 is the brush main body, what is designated by the reference numerals 2a and 2b is the stitch of the warp knitting structure, and what is designated by the reference numerals 3a and 3b is the brush bristles composed of fiber bundles.
図１は本実施形態の多層構造ブラシの構造を表す概略図である。ブラシ毛３ａ・３ｂは上下の位置関係で、共に細幅テープ状の両耳でＵ字状に折り返された状態で並列しており、この折り返し部の近傍を経編組織の編目２ａと編目２ｂの二つの鎖編糸で編成固定して一体化する。 FIG. 1 is a schematic view showing the structure of the multi-layer structure brush of this embodiment. The brush bristles 3a and 3b are arranged in a vertical position and are arranged in parallel in a state of being folded back in a U shape by both ears of a narrow tape, and in the vicinity of the folding back part, the stitches 2a and 2b of the warp knitting structure are formed. The two chain knitting yarns are knitted and fixed to be integrated.
本実施形態の概略断面図を図２に示す。前記ブラシ毛は複数の層（本実施形態では２層）を成しており、かつ、これらブラシ毛がそれぞれ異なる鎖編糸に囲まれて互いに独立して拘束保持されている。 A schematic cross-sectional view of this embodiment is shown in FIG. The brush bristles form a plurality of layers (two layers in the present embodiment), and these bristles are surrounded by different chain knitting yarns and are restrained and held independently of each other.
即ち、図３にも示すように、ブラシ毛３ａ・３ｂは表側と裏側とに完全に分かれており、表側のブラシ毛３ａは編目２ｂの鎖編糸により拘束され、裏側のブラシ毛３ｂは編目２ａの鎖編糸により拘束されているため、２つのブラシ毛３ａおよび３ｂは鎖編糸によりそれぞれ独立した状態で分離され、かつ、鎖編糸によりそれぞれ独立した状態で拘束されている。 That is, as shown in FIG. 3, the brush bristles 3a and 3b are completely separated into the front side and the back side, the front side bristles 3a are restrained by the chain knitting yarn of the stitch 2b, and the back side bristles 3b are knitted. Since it is constrained by the chain knitting yarn of 2a, the two brush bristles 3a and 3b are separated by the chain braiding yarn in an independent state, and are also constrained by the chain braiding yarn in an independent state.
このように、２つのブラシ毛３ａ・３ｂが確実に分離して拘束され、そして表裏で配列することによって、ブラシ毛の繊維本数密度を増やすことが容易に可能である。この際、更に、表裏のブラシ毛素材を違えることによって、二つの機能を発揮させるブラシを得ることもできる。 In this way, the two brush bristles 3a and 3b are reliably separated and restrained, and by arranging them on the front and back sides, it is possible to easily increase the fiber number density of the brush bristles. At this time, it is also possible to obtain a brush that exerts two functions by changing the material of the bristles on the front and back sides.
そして、こうして編成された細幅テープ状基材の中央部を、長さ方向（図１中の一点鎖線）にカットすることで、二つのブラシを得ることができる。 Then, two brushes can be obtained by cutting the central portion of the narrow tape-shaped base material knitted in this way in the length direction (the one-dot chain line in FIG. 1).
ここで、本実施形態の編組織を図４に示す。本実施形態では、筬Ｌ１と筬Ｌ３が鎖編糸（鎖編組織）で、筬Ｌ２と筬Ｌ４にブラシ毛の繊維束による８針横振り挿入組織とすることによって、筬Ｌ１の鎖編糸が筬Ｌ２と筬Ｌ４の両ブラシ毛を拘束するが、筬Ｌ３の鎖編糸は、筬Ｌ４のブラシ毛のみを拘束するので、それぞれのブラシ毛を独立状態で拘束することができるのである。 Here, the knitting structure of this embodiment is shown in FIG. In the present embodiment, the reed L1 and the reed L3 are chain knitting yarns (chain knitting structures), and the reed L2 and the reed L4 have eight-needle laterally-inserted structures by the fiber bundle of the brush bristles, so that the reed L1 and reed L4 are chain knitting yarns. Binds both the bristles of the reed L2 and the reed L4, but since the chain knitting yarn of the reed L3 restrains only the brush bristles of the reed L4, it is possible to restrain each of the bristles independently.
本実施形態の経編組織としては、鎖編組織であるとブラシの長さ方向への伸長が抑制されるので、ブラシの寸法安定性の面から最も好ましいが、１／１トリコット編やコード編、またはこれらの組み合わせであっても構わない。また、ブラシ毛３のＵ字状の折り返し部近傍を編成する編目列は、ブラシ毛３を確実に保持することを目的とするものであり、２〜５列並行させて編成することが好ましい。 As the warp knitting structure of the present embodiment, the chain knitting structure suppresses the elongation in the length direction of the brush, and therefore is most preferable from the viewpoint of dimensional stability of the brush, but it is 1/1 tricot knitting or cord knitting. , Or a combination thereof. The stitch row for knitting in the vicinity of the U-shaped folded portion of the brush bristles 3 is intended to hold the brush bristles 3 reliably, and it is preferable to knit in parallel for 2 to 5 rows.
また、編目２ａ・２ｂを形成する糸種としては、一般に経編でよく使用されているポリアミド繊維、ポリエステル繊維等のマルチフィラメント糸、およびそれらの加工糸を採用することができ、繊度としては３０〜６００ｄｔｅｘ程度が好ましい。繊度が３０ｄｔｅｘより小さいとブラシ毛３となる繊維束への締付力が不足してブラシ毛３が抜け易い問題があり、一方、繊度が６００ｄｔｅｘより大きくなると編目２の厚みが増える問題や、ブラシ毛の繊維束間の編糸の存在により繊維束間の隙間が大きくなる問題がある。 Further, as the yarn type for forming the stitches 2a and 2b, multifilament yarns such as polyamide fiber, polyester fiber and the like, which are commonly used in warp knitting, and processed yarns thereof can be adopted, and the fineness is 30. It is preferably about 600 dtex. When the fineness is less than 30 dtex, there is a problem that the brush bristles 3 that become the bristles 3 are insufficient in tightening force and the brush bristles 3 easily come off. On the other hand, when the fineness is more than 600 dtex, the thickness of the stitch 2 increases, There is a problem that the gap between the fiber bundles becomes large due to the presence of the knitting yarn between the fiber bundles of the bristles.
また、編目２ａ・２ｂは鎖編組織であることからブラシ毛３に沿って移動し易いので、確実に固定する手段として、低融点繊維を編目２ａ・２ｂの鎖編糸と引き揃えて編成したり、または鎖編糸自身を低融点ポリマーと高融点ポリマーとの芯鞘複合糸を用いて編成し、低融点の融点以上の温度の加熱処理でブラシ毛と編目を接着させることができ、同時にブラシ毛３の抜け防止対策になる。 Further, since the stitches 2a and 2b have a chain knitting structure, they easily move along the brush bristles 3. Therefore, as a means for surely fixing, the low melting point fibers are aligned with the chain knitting yarns of the stitches 2a and 2b and knitted. Or, the chain knitting yarn itself is knitted using a core-sheath composite yarn of a low melting point polymer and a high melting point polymer, and the bristles and stitches can be bonded by heat treatment at a temperature above the melting point of the low melting point, at the same time. It is a measure to prevent the brush bristles 3 from coming off.
本実施形態の多層構造ブラシの編成条件における編成密度としては、ブラシの用途により異なるが、ブラシ毛の繊維束の太さが細く、緻密な配列が望まれるものは高密度に編成する必要があり、一方、太い繊維束で強力な掃き出しを狙う用途では粗密度に編成となることから、例えば、使用するラッセル編機のゲージとしては、１６〜２４ゲージ／２５．４ｍｍ程度で、コース密度としては、１０〜２５コース／２５．４ｍｍの範囲であることが好ましい。 The knitting density under the knitting conditions of the multi-layer structure brush of the present embodiment depends on the application of the brush, but it is necessary to knit with high density if the fiber bundle of the brush bristles is thin and a dense arrangement is desired. On the other hand, since knitting is performed at a coarse density in an application aiming for strong sweeping with a thick fiber bundle, for example, the gauge of the Russell knitting machine used is about 16 to 24 gauge / 25.4 mm, and the course density is , 10 to 25 courses / 25.4 mm is preferable.
また、本実施形態の多層構造ブラシのブラシ毛３の素材としては、ポリアミド繊維、ポリエステル繊維、ポリプロピレン繊維、アクリル繊維等の合成繊維、炭素繊維やステンレス繊維、あるいは導電物質を含む合成繊維等の導電性繊維、また、防虫剤や抗菌剤が練り込まれた機能性繊維等を採用することができる。この際、二つのブラシ毛３ａ・３ｂの素材が同一であっても構わないが、それぞれのブラシ毛３に機能性の異なる素材とすることで複数の機能を発揮させることができる。 In addition, as the material of the brush bristles 3 of the multi-layer structure brush of the present embodiment, synthetic fibers such as polyamide fiber, polyester fiber, polypropylene fiber, acrylic fiber, carbon fiber or stainless fiber, or conductive fiber such as synthetic fiber containing a conductive substance is used. It is possible to employ a functional fiber, or a functional fiber in which an insect repellent or an antibacterial agent is kneaded. At this time, the materials of the two bristles 3a and 3b may be the same, but a plurality of functions can be exhibited by making the bristles 3 different in functionality.
ブラシ毛３ａ・３ｂに、炭素繊維や金属繊維、あるいは導電物質を含む合成繊維などの導電性繊維を用いることによって、それらの繊維自身は帯電しないようにし、また、他の合成繊維と併合して用いた際には、発生した静電気を導電性繊維を介して逃がしてやることができ、静電気による種々のトラブルを防ぐことができる。 By using conductive fibers such as carbon fibers, metal fibers, or synthetic fibers containing a conductive material for the brush bristles 3a and 3b, the fibers themselves are prevented from being charged, and are combined with other synthetic fibers. When used, the generated static electricity can be released through the conductive fiber, and various troubles due to static electricity can be prevented.
また、防虫性の機能性繊維を採用することによって、例えば、ピレスロイド系殺虫剤が熱可塑性樹脂に練り込まれて繊維状にした繊維等、一般に市販されている防虫繊維を用いることができ、防虫繊維をブラシ毛としたブラシを窓枠等のシール材として用いることにより、隙間から虫の侵入を防ぐと同時に、防虫剤の匂いで窓枠近傍には虫が近寄らないので、窓を開け閉めしても虫が室内へ侵入することを防ぐことができる。 Further, by adopting an insect-repellent functional fiber, for example, a commercially available insect-repellent fiber can be used, such as a fiber in which a pyrethroid insecticide is kneaded into a thermoplastic resin to form a fibrous form. By using a brush made of fiber bristles as a sealing material for window frames, etc., insects can be prevented from entering through the gaps, and at the same time insects do not approach the window frame due to the smell of insect repellent, so open and close the window. However, it is possible to prevent insects from entering the room.
そしてまた、抗菌性の機能性繊維を採用することによって、例えば、抗菌性を有した銀イオンを持つ銀系化合物、陽イオン界面活性剤の一つである第四級アンモニウム塩化合物、更には天然のキチン、キトサンなどが熱可塑性樹脂に練り込まれた繊維などがあり、掃除機の吸い込み口などのブラシ材に利用することによって、床やカーペットなどの敷物の抗菌作用が期待できる。 Further, by adopting an antibacterial functional fiber, for example, a silver-based compound having antibacterial silver ions, a quaternary ammonium salt compound which is one of cationic surfactants, and further natural compounds. There are fibers such as chitin, chitosan, etc. kneaded in a thermoplastic resin, and when used as a brush material for a suction port of a vacuum cleaner, an antibacterial action of a rug such as a floor or carpet can be expected.
なお、ブラシ毛３に使用する繊維種の中でも、防虫剤や抗菌剤を練りこんだ繊維は比較的に磨耗に弱く、また、導電性の炭素繊維においては、引っ張り強度は優れるものの曲げに対して折れやすいという欠点を有しているので、２層のブラシ毛３ａ・３ｂのどちらか、あるいは３層や４層のブラシ毛３ｃ・３ｄ・３ｅの層に、これらの機能性繊維を配列させて、ブラシ使用時における倒れに対して後押しとなる側（被さる側）、または外側にポリアミド繊維等のような靭性を有した繊維を配列させることによって、機能性繊維の耐久性を増すことができる。 Among the fiber types used for the brush bristles 3, the fibers kneaded with the insect repellent and the antibacterial agent are relatively weak against abrasion, and the conductive carbon fibers have excellent tensile strength but are resistant to bending. Since it has the drawback of being easily broken, these functional fibers should be arranged in either of the two layers of bristles 3a and 3b, or in the layers of three or four layers of bristles 3c, 3d and 3e. The durability of the functional fiber can be increased by arranging fibers having a toughness such as polyamide fiber on the side (covering side) that is pushed against falling when using the brush or on the outside.
また、どちらか一方の層を長いブラシ毛とし、もう一方の層を短いブラシ毛とすることによって、短いブラシ毛を長いブラシ毛の倒れ防止用として作用させて長いブラシ毛を補助することができる。具体的な製造方法としては、例えば、長いブラシ毛には熱収縮の小さい繊維を用い、もう一方の繊維には熱収縮の大きい繊維を用いて編成し、中央部をカットした後に加熱して、一方の繊維を大きく収縮することによって異なる長さのブラシ毛を形成することができる。更には、ブラシ毛の短い方のみに熱収縮性の加工糸を用いることもできる。 Also, by using one of the layers as long bristles and the other layer as short bristles, the short bristles can act to prevent the long bristles from collapsing and assist the long bristles. . As a specific manufacturing method, for example, a fiber having a small heat shrinkage is used for the long brush bristles, and a fiber having a large heat shrinkage is knitted for the other fiber, followed by heating after cutting the central portion. Brush fibers of different lengths can be formed by greatly shrinking one of the fibers. Furthermore, the heat-shrinkable processed yarn can be used only for the shorter brush bristles.
『第２実施形態』
次に、本発明の第２実施形態を図５から図８に基づいて説明する。図５は本実施形態の多層構造ブラシを表す正面図である。本実施形態は、第１実施形態と同様に、繊維束から成るブラシ毛がＵ字状に折り返された状態で並列して、この折り返し部の近傍が経編組織で編成固定されたブラシ材であるが、前記ブラシ毛は複数の層を成して鎖編糸により拘束保持されており、かつ、これら複数の層のうちの少なくとも２層間において、略等間隔で配列した一方のブラシ毛のブラシ毛束の立毛位置を、他方の層のブラシ毛のブラシ毛束の立毛位置の合間にする点において異なる。
"Second embodiment"
Next, a second embodiment of the present invention will be described based on FIGS. FIG. 5 is a front view showing the multilayer structure brush of this embodiment. Similar to the first embodiment, the present embodiment is a brush material in which brush bristles made of fiber bundles are arranged in parallel in a U-shaped folded state, and the vicinity of the folded portion is knitted and fixed by a warp knitting structure. However, the brush bristles have a plurality of layers and are restrained and held by chain knitting yarns, and at least two layers of the plurality of layers have one brush bristles arranged at substantially equal intervals. The difference is that the napped positions of the bristle bundles are located between the napped positions of the brush bristle bundles of the bristles of the other layer.
まず、ブラシ毛３ａ・３ｂは、それぞれ表裏関係で層を成し、表側層のブラシ毛３ａは表側の編目２ａにより一体化され、裏側層のブラシ毛３ｂは裏側の編目２ｃにより一体化されている。 First, the brush bristles 3a and 3b are layered in a front-back relationship, the front-side brush bristles 3a are integrated by the front-side stitch 2a, and the back-side layer bristles 3b are integrated by the back-side stitch 2c. There is.
そして、表側の編目２ａと裏側の編目２ｃとはそれぞれ鎖編組織を成しており、鎖編のシンカーループ同士が交錯し合って両編目が結合されている。この結合方法としては、同一の鎖編糸で前後２列の針床を交互に編成させても良いし、更には、両編目間に鎖編糸とは別の連結糸を設けて互いに連結させることもできる。 The front side stitch 2a and the back side stitch 2c form a chain stitch structure, and the sinker loops of the chain stitch are crossed with each other to join the two stitches. As the joining method, the needle beds in the front and rear two rows may be alternately knitted with the same chain knitting yarn, and further, a connecting yarn different from the chain knitting yarn may be provided between both stitches to be connected to each other. You can also
また、ブラシ毛３ａ・３ｂは、それぞれ両耳端でＵ字状に折り返されて層を成し、両耳端近傍で編目２ａ・２ｃにより一体化されており、第１実施形態と同様に、編成後に細幅テープ状基材の中央部を、長さ方向（図５中の一点鎖線）にカットすることで、二つのブラシを得ることができる。 Further, the brush bristles 3a and 3b are respectively folded back in a U shape at both ears to form a layer, and are integrated by the stitches 2a and 2c in the vicinity of both ears, like the first embodiment. After knitting, the central portion of the narrow tape-shaped base material is cut in the length direction (one-dot chain line in FIG. 5) to obtain two brushes.
本実施形態の概略断面図を図６に示す。また、図７に示すように、表側層のブラシ毛３ａは、表側編目２ａの鎖編糸の編目とシンカーループにより拘束されて、編目２ａと同間隔で配列しており、一方、裏側層のブラシ毛３ｂは裏側編目２ｃの鎖編糸の編目とシンカーループにより拘束されて、表側層と同様に、編目２ｃと同間隔で配列している。 A schematic cross-sectional view of this embodiment is shown in FIG. Further, as shown in FIG. 7, the brush bristles 3a of the front side layer are constrained by the stitches of the chain knitting yarn of the front side stitch 2a and sinker loops and arranged at the same intervals as the stitch 2a, while on the other hand, The brush bristles 3b are constrained by the stitches of the chain knitting yarn of the back side stitch 2c and sinker loops, and are arranged at the same intervals as the stitches 2c like the front layer.
本実施形態では、ダブルラッセル編機で編成することが好ましい。ダブルラッセル編機は、前後２列の針床が交互に上下して編成されるので、編地の長さ方向において、表側編目と裏側編目とのピッチが編目長さの１／２長さ分ずれるため、編目により拘束されているブラシ毛３ａ・３ｂは、表側層のブラシ毛３ａの立毛位置が裏側層のブラシ毛３ｂの配列の隙間の位置（合間）になる。 In this embodiment, it is preferable to knit with a double Russell knitting machine. In the double russel knitting machine, two rows of needle beds in the front and rear are alternately knitted up and down, so the pitch between the front side stitch and the back side stitch is equal to 1/2 of the stitch length in the length direction of the knitted fabric. Since the brush bristles 3a and 3b are constrained by the stitches, the raised positions of the brush bristles 3a on the front side layer become the positions (intervals) of the arrangement of the brush bristles 3b on the back side layer.
したがって、ブラシの掃き出し方向（ブラシの長手方向）において、表側ブラシ毛３ａの配列の隙間に丁度裏側ブラシ３ｂが存在するので、ブラシ毛が隙間なく配列されたのと同じ効果を発揮することになるため、高密度の経編機など特殊な経編機を用いなくとも、また、太い繊維束で無理して編成することなくとも、通常の経編機で容易に高密度立毛のブラシを得ることができる。 Therefore, in the brush sweeping direction (longitudinal direction of the brush), since the back side brush 3b exists exactly in the gap of the arrangement of the front side brush bristles 3a, the same effect as if the bristles are arranged without a gap will be exhibited. Therefore, without using a special warp knitting machine such as a high-density warp knitting machine, or without forcibly knitting with a thick fiber bundle, a high-density napped brush can be easily obtained with an ordinary warp knitting machine. You can
ここで、本実施形態の編組織を図８に示す。本実施形態では、筬Ｌ２と筬Ｌ３が鎖編糸（鎖編組織）で、筬Ｌ１と筬Ｌ４にブラシ毛となる繊維束による８針横振り挿入組織とすることによって、（前）筬Ｌ２で後ろ針床の編針で鎖編を編成し、逆に、（後）筬Ｌ３で前針床の編針で鎖編を編成することによって、鎖編のシンカーループ同士が交錯し合って一体化することができるのである。 Here, the knitting structure of the present embodiment is shown in FIG. In the present embodiment, the reed L2 and the reed L3 are chain knitting yarns (chain knitting structure), and the reeds L1 and L4 have an eight-needle sideways-inserted structure with a fiber bundle to be brush bristles, whereby the (front) reed L2 By knitting the chain knitting with the knitting needles of the back needle bed, and conversely, knitting the chain knitting with the knitting needles of the front needle bed with the (rear) reed L3, the sinker loops of the chain knitting intersect and are integrated. It is possible.
『第３実施形態』
次に、本発明の第３実施形態を図９および図１０に基づいて説明する。本実施形態では、ブラシ毛３の層を３層とする構造である。即ち、表側層のブラシ毛３ａは表側の編目２ａの側面で、かつ、裏側層のブラシ毛３ｂは裏側の編目２ｃの側面で、それぞれの鎖編のシンカーループに囲まれて保持されており、それらのブラシ毛３ａ・３ｂの層間において、両鎖編目２ａ・２ｃのシンカーループの間に挟まれる形でブラシ毛３ｃが保持された３層構造を成している。このように、本実施形態における各ブラシ毛は、単独あるいは複数のそれぞれ異なる鎖編糸に囲まれて互いに独立して拘束保持されている。
"Third Embodiment"
Next, a third embodiment of the present invention will be described based on FIGS. 9 and 10. In this embodiment, the brush bristles 3 have three layers. That is, the front side layer brush bristles 3a are held on the side faces of the front side stitch 2a, and the back side layer bristles 3b are held on the side faces of the back side stitch 2c while being surrounded by the sinker loops of the respective chain stitches, Between the layers of the brush bristles 3a and 3b, the brush bristles 3c are held so as to be sandwiched between the sinker loops of the chain stitches 2a and 2c to form a three-layer structure. In this way, the brush bristles in the present embodiment are restrained and held independently of each other by being surrounded by a single or a plurality of different chain knitting yarns.
このような３層構造とすることにより、ブラシの長手方向に対してブラシ毛３ａ・３ｃ・３ｂがブラシの長さ方向に少しずれながら順に並ぶので、隙間がなく、確実な掃き出し作用が期待できる。更には、前述したように曲げや磨耗に弱い機能性繊維を中央に配列せしめて、その両側に耐久性の優れた繊維を配列させて保護するような３層構造にすることもできる。 With such a three-layer structure, the brush bristles 3a, 3c, and 3b are arranged in order in the longitudinal direction of the brush while slightly shifting in the longitudinal direction of the brush, so that there is no gap and a reliable sweeping action can be expected. . Further, as described above, it is also possible to arrange a functional fiber, which is weak against bending and abrasion, in the center, and to arrange and protect fibers having excellent durability on both sides thereof to form a three-layer structure.
『第４実施形態』
次に、本発明の第４実施形態を図１１および図１２に基づいて説明する。本実施形態では、ブラシ毛３の層を４層とする構造である。即ち、表側層のブラシ毛３ａは表側の編目２ａの側面に配列され、そして、２層目のブラシ毛３ｄが表側１層目のブラシ毛３ａに重なるようにして配列されて、表側の別々の鎖編糸でそれぞれ独立して保持されている一方、４層目のブラシ毛３ｂは裏側の編目２ｃの側面に配列され、３層目のブラシ毛３ｅが４層目のブラシ毛３ｂと重なり、裏側の別々の鎖編糸でそれぞれ独立して保持されており、２層目のブラシ毛３ｄと３層目のブラシ毛３ｅを保持する鎖編糸同士が交錯して一体化している。
"Fourth Embodiment"
Next, a fourth embodiment of the present invention will be described based on FIGS. 11 and 12. In the present embodiment, the brush bristles 3 have four layers. That is, the front side layer brush bristles 3a are arranged on the side surface of the front side stitch 2a, and the second layer brush bristles 3d are arranged so as to overlap the front side first layer brush bristles 3a, and separate front side bristles 3a are arranged. While being held independently by chain knitting yarns, the fourth layer brush bristles 3b are arranged on the side surface of the back side stitch 2c, and the third layer brush bristles 3e overlap the fourth layer brush bristles 3b. The chain knitting yarns on the back side are held independently of each other, and the chain knitting yarns holding the second-layer brush bristles 3d and the third-layer bristles 3e intersect and are integrated.
このような形でブラシ毛を４層とすることにより、中間層の２層のブラシ毛３ｄ・３ｅは、両サイドのブラシ毛と同一位置の配列となることから、中間層の２層を確実に保護することが可能である。また、中間層の２層について別の機能性繊維を配列させることもでき、複数の機能を発揮するブラシを提供することができる。また、各層の繊維束はそれぞれ独立して編糸により確実に拘束されていることから、ブラシ毛の抜けを効果的に防ぐことができる。 By using four layers of bristles in this way, the two layers of bristles 3d and 3e of the intermediate layer are arranged at the same positions as the bristles of both sides, so that the two layers of the intermediate layer can be reliably secured. It is possible to protect it. Further, different functional fibers can be arranged in the two layers of the intermediate layer, and a brush exhibiting a plurality of functions can be provided. Further, since the fiber bundles of the respective layers are independently and surely restrained by the knitting yarn, it is possible to effectively prevent the brush bristles from coming off.
＜応用例＞
本実施形態の多層構造ブラシの応用例を図１３に示す。本応用例は、ブラシ毛３の折り返し部側の端部に、熱溶融繊維から成る編構造によってブラシの長さ方向に延びる凸状の取付凸部４を設けたものである。具体的には、ブラシ本体を編成後に、ブラシ毛３の折り返し部側の端部の熱溶融性繊維の融点以上に加熱して型成形することによって、樹脂注入成形のような煩雑な成形加工をすることなく、掃除機等のブラシ取り付け用スロットに挿入可能な取付凸部４を形成することができる。
<Application example>
FIG. 13 shows an application example of the multilayer structure brush of this embodiment. In this application example, an end portion of the brush bristle 3 on the folded-back side is provided with a convex mounting convex portion 4 extending in the length direction of the brush by a knitting structure made of hot-melt fibers. Specifically, after the brush main body is knitted, it is heated to a temperature equal to or higher than the melting point of the heat-fusible fiber at the end of the brush bristles 3 on the folded-back side to be molded, thereby performing a complicated molding process such as resin injection molding. Without doing so, the mounting protrusion 4 that can be inserted into the brush mounting slot of a vacuum cleaner or the like can be formed.
この際、取付凸部４の厚みｔ１としては、スロットから外れない（抜けない）厚さが必要であり、型成形後においてブラシ毛３の厚さｔ０よりも８ｍｍ以上の厚さであることが好ましく、実際には型成形することで厚みが減少するので、型成形後においてはブラシ毛３の厚みｔ０よりも４ｍｍ以上の厚さであれば問題ない。 At this time, the thickness t1 of the mounting convex portion 4 needs to be a thickness that does not come off (do not come off) from the slot, and may be 8 mm or more than the thickness t0 of the brush bristles 3 after molding. In practice, since the thickness is actually reduced by molding, there is no problem if the thickness is 4 mm or more than the thickness t0 of the brush bristles 3 after molding.
また、取付凸部４の形状としては、図示の形状以外にも、ブラシ毛３の折返し側の端部から二重組織でＹ字状に枝分かれさせて、Ｔ字状、または端部で上方に折り返して成形する方法や、端部に二重組織で袋状として袋内に角棒体などを挿入して成形する方法であっても構わない。 Further, as the shape of the mounting convex portion 4, in addition to the shape shown in the drawing, a Y-shaped branch is formed with a double structure from the folded-back side end portion of the brush bristles 3 and a T-shaped portion or upward at the end portion. It may be a method of folding back and forming, or a method of forming a bag with a double structure at the end and inserting a square rod or the like into the bag and forming.
なお、取付凸部４を成形するにあたり、熱溶融繊維として、低融点ポリマーと高融点ポリマーからなる芯鞘複合糸を使用したり、あるいは低融点繊維を含めて編成することによって、比較的低い温度で取付凸部４を硬化させて成形することができるので好ましい。 When molding the mounting projection 4, a core-sheath composite yarn composed of a low-melting polymer and a high-melting polymer is used as the heat-melting fiber, or a knitting including the low-melting fiber is performed, whereby a relatively low temperature is obtained. It is preferable because the mounting projection 4 can be cured and molded.
本発明は、概ね上記のように構成されるが、本発明は図示の実施形態に限定されるものではなく、「特許請求の範囲」の記載内において種々の変更が可能であって、ブラシ毛３の横振り挿入を編目毎に配列させた例を示したが、例えば、機能性繊維が非常に高価であって、ブラシ１の所々に点在するだけで効果が得られるような場合においては、機能性繊維束の折り返し数（頻度）を少なくして、機能性繊維の使用量を少なくすることができ、そうすることでブラシの製造コストを下げることができる。 Although the present invention is configured as described above in general, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of “Claims”. Although an example in which the lateral swing insertion of No. 3 is arranged for each stitch is shown, for example, in the case where the functional fiber is very expensive and the effect can be obtained only by being scattered in places of the brush 1. By reducing the number (frequency) of folding back of the functional fiber bundle, the amount of the functional fiber used can be reduced, and by doing so, the manufacturing cost of the brush can be reduced.
本発明の多層構造ブラシは、ブラシ材としての柔軟性を損なわずにブラシ毛の本数を増加し、かつ、均一な配列密度を可能とし、しかも、種々の機能性を発揮させることもでき、種々の用途に適用できることから、その産業上の利用価値は非常に高い。 INDUSTRIAL APPLICABILITY The multilayer structure brush of the present invention can increase the number of brush bristles without impairing the flexibility as a brush material, enable a uniform array density, and can exhibit various functionalities. Since it can be applied to other uses, its industrial utility value is extremely high.
１ ブラシ本体
２（２ａ・２ｂ・２ｃ・２ｄ） 編目
３（３ａ・３ｂ・３ｃ・３ｄ・３ｅ） ブラシ毛
４ 取付凸部
1 Brush body 2 (2a, 2b, 2c, 2d) Stitch 3 (3a, 3b, 3c, 3d, 3e) Brush bristles 4 Mounting protrusion
Claims (9)
前記ブラシ毛は複数の層を成しており、かつ、これらブラシ毛がそれぞれ異なる編目の鎖編糸に囲まれて互いに独立して拘束保持されていることを特徴とする多層構造ブラシ。 A brush material in which brush bristles made of fiber bundles are arranged in parallel in a U-shaped folded state, and the vicinity of the folded portion is knitted and fixed by chain knitting yarns of stitches of a warp knitting structure to be integrated ,
The multi-layered brush, wherein the brush bristles have a plurality of layers, and the bristles are surrounded by chain stitch yarns of different stitches and are restrained and held independently of each other.
前記ブラシ毛は複数の層を成して編目の鎖編糸により拘束保持されており、かつ、これら複数の層のうちの少なくとも２層間において、略等間隔で配列した一方のブラシ毛のブラシ毛束の立毛位置が、他方の層のブラシ毛のブラシ毛束の立毛位置の合間であることを特徴とする多層構造ブラシ。 A brush material in which brush bristles made of fiber bundles are arranged in parallel in a U-shaped folded state, and the vicinity of the folded portion is knitted and fixed by chain knitting yarns of stitches of a warp knitting structure to be integrated ,
The brush bristles are made up of a plurality of layers and are held by a chain knitting yarn of a stitch , and at least two layers of the plurality of layers are arranged at substantially equal intervals. A brush having a multi-layer structure, wherein the bristles of the bundle are located between the bristles of the bristles of the other layer.
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