JP2008156799A - Colored paper braid and method for producing the same - Google Patents

Colored paper braid and method for producing the same Download PDF

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JP2008156799A
JP2008156799A JP2006349116A JP2006349116A JP2008156799A JP 2008156799 A JP2008156799 A JP 2008156799A JP 2006349116 A JP2006349116 A JP 2006349116A JP 2006349116 A JP2006349116 A JP 2006349116A JP 2008156799 A JP2008156799 A JP 2008156799A
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paper
colored
coloring
base paper
printing
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Keiichiro Wada
恵一郎 和田
Hironobu Okuyama
浩伸 奥山
Motofumi Okugawa
素史 奥川
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Tomoegawa Co Ltd
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Tomoegawa Paper Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in which fuzz of natural fiber surface and coloring unevenness to natural fiber are found and vividness of the color is defective and color is made to fade by rain, etc., when carrying out coloring by internally adding a dye to a raw paper. <P>SOLUTION: A colored paper braid is obtained by twisting several self-twisted braids of tape of raw paper applying coloring on at least one side of raw paper by a coloring component containing coloring pigment as a main component. The method for producing the colored paper braid includes a papermaking step making paper-making raw material in which ≥70% pulp raw material is composed of softwood kraft pulp into paper by wet paper making, a coloring step making a colored raw paper by applying coloring by printing a coloring component containing a coloring pigment as a main component onto at least one surface of the raw paper, a step making a cut tape by cutting the colored raw paper into a tape, a step making self-twisted braid by twisting colored surface of the cut tape which is positioned outside and a step making the colored paper braid by twisting a plurality of self-twisted braids. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、原紙の表面を着色顔料にて着色した着色原紙の自己撚り紐を複数本撚り合わせしてなる着色紙紐およびその製造方法に関する。   The present invention relates to a colored paper string formed by twisting a plurality of self-twisted strings of a colored base paper in which the surface of the base paper is colored with a coloring pigment, and a method for producing the same.

従来の紐類として、麻、わら等の天然繊維を使用したものや、ポリエチレン、ナイロン、ポリエステル等の合成繊維を使用したものが一般的であり、特に前者の麻、わら等の天然繊維は可燃性で、土中埋設でも容易に腐食する特徴を有するが、現在は生産原料が少なく、後者の合成繊維は、廃棄した時に燃焼すると環境に悪影響を及ぼすガスの発生が懸念
され、まして土中では腐食しないという問題を有するものであった。
Conventional cords that use natural fibers such as hemp and straw, and those that use synthetic fibers such as polyethylene, nylon, and polyester are common, and the former natural fibers such as hemp and straw are particularly flammable. It has the characteristics of being easily corroded even when buried in the soil, but currently there are few raw materials for production, and the latter synthetic fibers are concerned about the generation of gas that adversely affects the environment when burned when discarded, and even in the soil It had the problem of not corroding.

現在、廃棄物処理の観点から、屋外でも使用可能な天然繊維を使用した紐類の開発が進められている。(特許文献1)
すなわち、この紙紐は、土壌への同質化が容易で、吸水、保水性が高く、焼却しても有毒ガスの発生もないので、植生用ネット等の屋外に応用展開されている。
ところで、近年、紙紐はその有用性が注目され、手提げ袋の把持部や、包装体、屋外装飾、インテリア等色彩性が鮮明で、美観を求められる用途への要求が高まっている。
しかしながら、特許文献1に記載の従来提案されていた紙紐は、填料を抄紙原料の中に内添する程度の提案がなされているのみで、このような要求を満たすことはできなかった。
Currently, from the viewpoint of waste disposal, development of strings using natural fibers that can be used outdoors is underway. (Patent Document 1)
In other words, this paper string is easily applied to soil, has high water absorption and water retention, and does not generate toxic gas even when incinerated.
By the way, in recent years, the usefulness of paper strings has been attracting attention, and there is an increasing demand for applications that require clear aesthetics such as gripping portions of handbags, packaging bodies, outdoor decorations, interiors, and the like.
However, the conventionally proposed paper string described in Patent Document 1 has not been able to satisfy such a requirement because only a proposal to the extent that a filler is internally added to a papermaking raw material has been made.

一方、原紙を着色する手段としては、抄紙原料の中に染料を内添するのが一般的である。しかし、このような染料による着色紙を使って着色紙紐を作製すると、天然繊維表面の毛羽立ちや天然繊維への着色ムラが発生し、仕上がった紙紐の色の鮮明性が不十分で、到底美観を満たすものではなかった。
さらに、従来技術による填料や染料等の着色成分を抄紙原料に内添する着色手段を着色紙紐に適用すると、予め同一着色の原紙を大量に製造することになるので、各種の色毎に小量で多品種の紙紐を生産する場合に非効率となり、安価な製品の供給が難しいとの問題を有するものであった。
また、防水紙紐に着色を施すのに、紙紐自体を着色顔料入り水性ワニスにディッピングする技術も提案されているが、ディッピング後の乾燥により形成されたワニスの皮膜が剛性を有するために、しなやかな着色紙紐が得られない問題を有するものであった。(特許文献2)。
On the other hand, as a means for coloring the base paper, a dye is generally added to the papermaking raw material. However, when a colored paper string is produced using colored paper with such a dye, fluffing of the natural fiber surface and uneven coloring of the natural fiber occur, and the finished paper string has insufficient color clarity, so It did not satisfy aesthetics.
Furthermore, if a coloring means for internally adding coloring components such as fillers and dyes according to the prior art is applied to colored paper strings, a large amount of the same colored base paper will be produced in advance. In the case of producing a large variety of paper strings by the amount, it becomes inefficient and has a problem that it is difficult to supply an inexpensive product.
In addition, a technique of dipping the paper string itself into a colored pigment-containing aqueous varnish for coloring the waterproof paper string has also been proposed, but since the varnish film formed by drying after dipping has rigidity, There was a problem that a flexible colored paper string could not be obtained. (Patent Document 2).

特開2004−115957号公報JP 2004-115957 A 特開2001−48223号公報JP 2001-48223 A

本発明は、上記の実情に鑑みてなされたものであり、使用済みの際の廃棄時に耐環境性を十分維持したまま、鮮明な着色性を発現し、かつ小ロット多品種生産に適した着色紙紐とその製造方法を提供することを目的とする。   The present invention has been made in view of the above-mentioned circumstances, and it is clear that it has a clear coloring property while maintaining sufficient environmental resistance at the time of disposal when it is used, and is suitable for small lot multi-product production. An object is to provide a colored paper string and a method for manufacturing the same.

本発明は、上記課題を解決するために鋭意検討の結果なされたものである。
すなわち、請求項1の発明は、原紙の少なくとも片面に、着色顔料を主成分とする着色成分をもって、印刷により着色を施してなる原紙のテープの着色面を外側にして撚った自己撚り紐を、複数本撚り合わせしてなることを特徴とする着色紙紐であり、請求項2の発明は、前記印刷がフレキソ印刷であることを特徴とする請求項1に記載の着色紙紐であり、請求項3の発明は、前記原紙を構成するパルプ原料の70%以上が針葉樹クラフトパルプからなることを特徴とする請求項1もしくは請求項2に記載の着色紙紐であり、請求項4の発明は、前記原紙のJIS P8113により測定された引張り強さの縦/横比が、5〜15であることを特徴とする請求項1,請求項2もしくは請求項3のいずれかに記載の着色紙紐であり、請求項5の発明は、パルプ原料の70%以上が針葉樹クラフトパルプからなる抄紙原料を湿式抄紙によって原紙を抄紙する抄紙工程と、該原紙の少なくとも片面に着色顔料を主成分とする着色成分をもって印刷により着色を施すことにより着色原紙を作成する着色工程と、該着色原紙をテープに切断し切断テープを作成する工程と、該切断テープの着色面を外側にして撚って自己撚り紐を作成する工程と、該自己撚り紐を複数本撚り合わせて着色紙紐を作成する工程、とからなることを特徴とする着色紙紐の製造方法であり、請求項6の発明は、前記印刷がフレキソ印刷であることを特徴とする請求項5に記載の着色紙紐の製造方法である。
The present invention has been made as a result of intensive studies in order to solve the above problems.
That is, the invention of claim 1 is a self-twisted string twisted with a colored surface of a base paper tape that is colored by printing having a coloring component mainly composed of a color pigment on at least one side of the base paper, with the colored surface of the base paper facing outward. A colored paper string formed by twisting a plurality of pieces, and the invention according to claim 2 is the colored paper string according to claim 1, wherein the printing is flexographic printing. The invention according to claim 3 is the colored paper string according to claim 1 or 2, wherein 70% or more of the pulp raw material constituting the base paper is made of softwood kraft pulp, and the invention according to claim 4 4. The colored paper according to claim 1, wherein the aspect ratio of the tensile strength measured by JIS P8113 of the base paper is 5 to 15. 5. The string of claim 5 Ming is colored by printing with a papermaking process in which base paper is made by wet papermaking with a papermaking raw material in which 70% or more of the pulp raw material is made of softwood kraft pulp, and at least one side of the base paper is colored with a coloring component as a main component A coloring step of creating a colored base paper, a step of cutting the colored base paper into a tape to create a cutting tape, a step of twisting the colored surface of the cutting tape outward to create a self-twisted string, A process for producing a colored paper string by twisting a plurality of self-twisted strings, and the invention of claim 6 is characterized in that the printing is flexographic printing. It is a manufacturing method of the colored paper string of Claim 5 characterized by the above-mentioned.

本発明の効果は、原紙への着色手段が、原紙の少なくとも片面に、着色顔料をフレキソ印刷等の印刷により着色されるので、抄紙原料の中に染料を配合して着色する従来技術とは異なり、鮮明な着色が長期間保持され、雨水や紫外線などの環境下でもさほど退色することがない作用効果を奏する。従って、例えば作業の危険性を報知する信号紐としての黄色と黒の撚り紐、あるいは運動会、祝賀会などのエベントで使用される紅白の撚り紐として好適に用いられ、降水や好天猛暑の時でも、十分な強度を保持しながら、目的として着色を保持することができる。
また、本発明の製造方法では、一端原紙を製造したあとに着色を施すので、予め未着色の原紙を多量に製造しておけば、その後の工程にて印刷手段、とりわけフレキソ印刷手段により任意の色を選択したうえで、好みの着色を小ロットにて行うことができるので、着色原紙を製造するにあたって、多色品種小量生産を効率的に行うことができる。
The effect of the present invention is that the coloring means for the base paper is colored by printing such as flexographic printing on at least one side of the base paper. The vivid coloration is maintained for a long period of time, and there is an effect of not fading so much even in an environment such as rainwater or ultraviolet rays. Therefore, it is preferably used as a yellow and black twisted string as a signal string to notify the danger of work, or as a red and white twisted string used at events such as athletic meet, celebration, etc. However, it is possible to maintain the coloring as the object while maintaining a sufficient strength.
Further, in the production method of the present invention, coloring is performed after the base paper is manufactured, so if a large amount of uncolored base paper is manufactured in advance, any subsequent printing means, in particular flexographic printing means, can be used. Since a desired color can be performed in a small lot after selecting a color, a small amount of multi-color varieties can be efficiently produced when producing colored base paper.

以下、本発明について、詳細に説明する。
本発明を構成する原紙は、パルプ原料の少なくとも70%以上が針葉樹クラフトパルプから構成さえれることが、紙紐に必要な引張り強度を維持する上で好ましい。
針葉樹クラフトパルプに混合する他のパルプとしては、広葉樹パルプ等の木材パルプ、マニラ麻パルプ、サイザル麻パルプ、亜麻パルプ、ケナフパルプ等の非木材パルプ、および原紙の強度を損なわない範囲で古紙パルプを配合することもできる。
Hereinafter, the present invention will be described in detail.
In order to maintain the tensile strength required for the paper string, it is preferable that the base paper constituting the present invention comprises at least 70% or more of the pulp raw material from softwood kraft pulp.
Other pulps to be mixed with softwood kraft pulp include wood pulp such as hardwood pulp, non-wood pulp such as manila hemp pulp, sisal pulp, flax pulp and kenaf pulp, and waste paper pulp as long as the strength of the base paper is not impaired. You can also.

又、本発明を構成する原紙は、日本古来から製造されている「和紙」も好適に使用される。「和紙」特有の強靭な引張り強度等紙力が、通常の洋紙よりも期待できるからである。「和紙」の原料としては、従来から周知の三椏パルプ、楮パルプ、マニラ麻パルプおよび雁皮パルプ等が本発明に適用され、機械すき和紙および手すき和紙のいずれも使用可能である。更に又、本発明で使用される「和紙」には、化学パルプを使用した機械抄き和紙も使用される。
これらののパルプは、ビ−タ−等の叩解機による叩解処理を経て原紙用の原料に供される。
As the base paper constituting the present invention, “Japanese paper” manufactured from ancient times in Japan is also preferably used. This is because paper strength such as tough tensile strength peculiar to “Japanese paper” can be expected from ordinary paper. As a raw material of “Japanese paper”, conventionally known three base pulp, straw pulp, Manila hemp pulp, husk pulp, and the like are applied to the present invention, and either machine-made Japanese paper or hand-made Japanese paper can be used. Furthermore, as the “Japanese paper” used in the present invention, mechanical papermaking paper using chemical pulp is also used.
These pulps are subjected to a beating process using a beater such as a beater, and then used as raw material for base paper.

叩解処理の程度は、撚紙後の紙ひもの用途によって設定され、強度の高い紙ひもを得ようとする場合は叩解を進める必要がある。この場合、マニラ麻の配合率を高くするのも強度の高い紙ひもを得るのに有効である。
又、本発明の原紙には、必要に応じて湿潤紙力増強剤、各種の填料、サイズ剤および歩留り向上剤等の添加剤を配合することも出来る。
特に、湿潤紙力増強剤は、ある程度の期間にわたって雨水による紙の強度劣化を防止するのに効果的である。この場合の、湿潤紙力増強剤は、特に限定されるものではないが、ポリアミドエピクロルヒドリン樹脂、エポキシ系樹脂、メラミン系樹脂、尿素系樹脂、ジアルデヒドデンプン、ポリアクリルアミド及びポリエチレンイミンから選択された少なくとも1種が本発明に好適に適用出来る。
又、サイズ剤としては、ロジン系のほかアルキルケテンダイマー、アルケニル無水コハク酸等の内添サイズ剤や各種の合成高分子型の表面サイズ剤が使用可能である。
更に又、歩留まり向上剤は、抄紙機におけるパルプや填料のロスを少なくし製紙の収率向上のために添加され、例えばポリアクリルアミドを代表とする有機高分子系電解質や、硫酸アルミニウムを代表とする無機塩類が本発明の原紙に適用可能である。
The degree of the beating process is set according to the use of the string after twisted paper, and it is necessary to advance the beating when trying to obtain a high-strength paper string. In this case, increasing the blending ratio of Manila hemp is effective for obtaining a high-strength paper string.
The base paper of the present invention may contain additives such as a wet paper strength enhancer, various fillers, sizing agents, and yield improvers, if necessary.
In particular, the wet paper strength enhancer is effective in preventing deterioration of paper strength due to rain water over a certain period of time. In this case, the wet paper strength enhancer is not particularly limited, but at least selected from polyamide epichlorohydrin resin, epoxy resin, melamine resin, urea resin, dialdehyde starch, polyacrylamide and polyethyleneimine. One type can be suitably applied to the present invention.
As the sizing agent, in addition to the rosin type, internal sizing agents such as alkyl ketene dimers and alkenyl succinic anhydrides and various synthetic polymer type surface sizing agents can be used.
Furthermore, the yield improver is added to reduce the loss of pulp and filler in the paper machine and improve the yield of papermaking. For example, an organic polymer electrolyte typified by polyacrylamide and aluminum sulfate are typified. Inorganic salts are applicable to the base paper of the present invention.

本発明を構成する原紙を製造するには、上記の原料を所定の割合で配合した抄紙原料のスラリ−を湿式抄紙機にて抄造することにより行われる。
本発明の原紙を抄造する湿式抄紙機は、一般の抄紙技術に適用されている長網および円網抄紙機等特に限定されるものではないが、紙ひも網状体に必要な引張り強度を十分に確保するために円網抄紙機を使用することが好ましい。
本発明の原紙の坪量は、20〜80g/mであるのが好ましく、より好ましくは30〜50g/mである。坪量が20g/mに満たないと撚紙時に切断しやすく、80g/mを超えると剛性が高くなって撚りにくくなり易い。
Production of the base paper constituting the present invention is carried out by making a papermaking raw material slurry in which the above raw materials are blended at a predetermined ratio with a wet paper machine.
The wet paper machine for making the base paper of the present invention is not particularly limited, such as a long net and a circular net paper machine, which are applied to general paper making technology, but has sufficient tensile strength necessary for the paper string net. In order to ensure, it is preferable to use a circular net paper machine.
The basis weight of the base paper of the present invention is preferably 20 to 80 g / m 2 , more preferably 30 to 50 g / m 2 . If the basis weight is less than 20 g / m 2 , it is easy to cut at the time of twisted paper, and if it exceeds 80 g / m 2 , the rigidity becomes high and it is difficult to twist.

又、本発明を構成する原紙は、針葉樹クラフトパルプ100%若しくは前記複数のパルプ成分を、パルプ原料の70%以上が針葉樹クラフトパルプとなるように混抄した混抄紙からなる単層紙のほか、2ないし3層の抄き合わせ紙とした構成でも良い。本発明を構成する原紙は、JISP8113による引張強さの縦/横比が5〜15であることが好ましい。当該引張強さの縦/横比が5に満たないと、紙ひも製造の際、原紙の原反からテ−プ状にスリットする時に紙切れのおそれがあり、一方、15を超えて大きいとテ−プ状にスリットする時に縦方向に裂けるおそれがあるので好ましくない。   The base paper constituting the present invention includes 100% of softwood kraft pulp or a single-layer paper made of mixed paper obtained by mixing the plurality of pulp components so that 70% or more of the pulp raw material becomes softwood kraft pulp. Or the structure used as the laminated paper of 3 layers may be sufficient. The base paper constituting the present invention preferably has a tensile strength aspect ratio of 5 to 15 according to JISP8113. If the aspect ratio of the tensile strength is less than 5, there is a risk of paper breakage when slitting into a tape-like shape from the base paper during the manufacture of paper strings. -It is not preferred because there is a risk of tearing in the vertical direction when slitting into a sphere.

本発明を構成する原紙の少なくとも片面に着色成分をもって着色するには、印刷手段を採用する。適用される印刷手段としては、フレキソ印刷、グラビア印刷、オフセット印刷、スクリーン印刷及び凸版印刷等が挙げられるが、中でも本発明においてはフレキソ印刷が紙素材へのベタ印刷適正に優れることから、好適に使用される。
本発明に好適に使用されるフレキソ印刷は、ゴムや樹脂などの弾性素材からなる刷板と液状インキを用いる印刷方式で、形式としては凸版印刷であるが、一般凸版印刷と比べて印圧が軽いので、本発明を実施するにあたっては、ベタ印刷のみでなく、網点印刷による着色を施してもよい。
In order to color at least one side of the base paper constituting the present invention with a coloring component, a printing means is employed. Examples of the printing means to be applied include flexographic printing, gravure printing, offset printing, screen printing, letterpress printing, and the like.In particular, in the present invention, flexographic printing is preferable because it is excellent in solid printing on paper materials. used.
The flexographic printing suitably used in the present invention is a printing method using a printing plate made of an elastic material such as rubber or resin and liquid ink, and the form is letterpress printing, but the printing pressure is higher than that of general letterpress printing. Since it is light, in carrying out the present invention, not only solid printing but also coloring by halftone printing may be performed.

本発明に適用されるフレキソ印刷機は、圧胴の機構によって区分けされる中央圧胴型ユニット(共同圧胴式)や、各ユニット毎に圧胴が使われるスタック型やライン型ユニットが上げられるが、これらに限定されるものではない。   The flexo printing machine applied to the present invention includes a central impression cylinder type unit (joint impression cylinder type) divided by an impression cylinder mechanism, and a stack type or line type unit in which an impression cylinder is used for each unit. However, it is not limited to these.

一方、本発明にフレキソ印刷を使用した場合に採用されるフレキソインキは、有彩色から成る顔料を主体とした着色剤、アクリル系、セルロース系、ポリアミド系、アルキッド樹脂、ロジン変性フェノール樹脂等の樹脂、亜麻仁油、大豆油、脱水ひまし油等の植物油を溶剤に溶解したビヒクル、水ないし水/アルコール混合系の溶剤にて構成され、その性状は、流動性の高い低粘度速乾性である。本発明においては、さらに最近ラベル印刷向けに採用されている無溶剤フレキソインキ、特に紫外線硬化型フレキソインキも好適に使用できる。   On the other hand, the flexo ink employed when flexographic printing is used in the present invention is a colorant mainly composed of a pigment having a chromatic color, a resin such as acrylic, cellulose, polyamide, alkyd resin, and rosin-modified phenol resin. It is composed of a vehicle in which vegetable oil such as linseed oil, soybean oil, dehydrated castor oil or the like is dissolved in a solvent, or a solvent of water or water / alcohol mixed system, and its property is low viscosity and quick drying with high fluidity. In the present invention, solvent-free flexographic inks that have recently been used for label printing, particularly ultraviolet curable flexographic inks, can also be suitably used.

インキに使用する顔料としては特に制限はなく、一般的に用いられるものが使用できる。顔料として例えば、無機顔料として、カーボンブラック、酸化チタン、亜鉛華、黄鉛、べんがら、炭酸カルシウム、ホワイトカーボン(無水ケイ酸)、タベントナイトなどがあり、有機顔料として、ジスアゾイエロー、ブリリアントカーミン、レーキレッド、フタロシアニンブルー、フタロシアニングリーンなどがある。   There is no restriction | limiting in particular as a pigment used for ink, What is generally used can be used. Examples of pigments include inorganic pigments such as carbon black, titanium oxide, zinc white, yellow lead, red pepper, calcium carbonate, white carbon (anhydrous silicic acid), and taventite. Organic pigments include disazo yellow, brilliant carmine, and lake. Red, phthalocyanine blue, and phthalocyanine green.

インキには必要に応じて添加剤を追加できる。添加剤により、インキ特性や印刷作業性をさらに向上させたり、調整したりすることができる。添加剤としては、例えば、レシチン、ソルビタン脂肪酸エステル、ゲル化剤、表面活性剤(乳化剤)、高級アルコール(乳化防止剤)、パラフィンワックス、ポリエチレンワックス、酸化防止剤、可塑剤などが挙げられる。   Additives can be added to the ink as needed. Additives can further improve or adjust ink properties and printing workability. Examples of the additive include lecithin, sorbitan fatty acid ester, gelling agent, surfactant (emulsifier), higher alcohol (emulsification inhibitor), paraffin wax, polyethylene wax, antioxidant, plasticizer and the like.

上記の工程によって得られた原紙は幅5〜150mmで巻長さが500m程度の巻き取りにスリット加工してテープ状に裁断し、着色面を外側にして撚糸機にセットして撚りをかけることにより自己撚りして紙ひもに加工される。この場合表面が片面着色の場合は着色面を撚り糸の際に表側になるように配慮することにより、着色効果を発揮することが出来る。
本発明で使用する紙ひもの太さは特に限定がないが、取扱いやすさからみて、直径が1〜10mm位が好適である。
本発明ではこの自己撚り紐を複数本さらに重ね撚よりして重ね撚り構成の着色紙紐が形成される。
The base paper obtained by the above process is slit into a winding having a width of 5 to 150 mm and a winding length of about 500 m, cut into a tape shape, set on a twisting machine with the colored surface facing outward, and twisted. Is self-twisted and processed into a paper string. In this case, when the surface is colored on one side, the coloring effect can be exhibited by considering the colored surface to be the front side when twisted.
The thickness of the paper string used in the present invention is not particularly limited, but a diameter of about 1 to 10 mm is preferable from the viewpoint of ease of handling.
In the present invention, a plurality of the self-twisted cords are further twisted to form a colored paper cord having a laid-twist configuration.

以下図面を以って本発明を説明する。
本発明で作成されたテープの構造例は、図1に示すように、原紙11の少なくとも片面に顔料による着色層12が設けられ、これを自己撚りして原紙のテープの撚り紐13を形成しており、これを用いた本発明の着色紙紐の一例が図2二示す構造である。
すなわち、前記1の原紙のテープの撚り紐のうち、図では2本が黄色のテープの自己撚り紐13aで、1本が黒色のテープの自己撚り紐13bで形成され、その3本が重ね撚りいて本発明の着色紙紐14を形成している。
The present invention will be described below with reference to the drawings.
As shown in FIG. 1, a structural example of a tape made according to the present invention is provided with a colored layer 12 made of a pigment on at least one side of a base paper 11, which is self-twisted to form a twisted string 13 of the base paper tape. An example of the colored paper string of the present invention using this is the structure shown in FIG.
That is, among the twisted strings of the base paper tape of the above 1, in the figure, two are formed of a self-twisted string 13a of a yellow tape and one is formed of a self-twisted string 13b of a black tape, and three of them are lap-twisted. Thus, the colored paper string 14 of the present invention is formed.

[実施例1]
国産の針葉樹未晒クラフトパルプ(NUKP)を60゜SRに叩解して水性スラリ−を作成し、これにポリアミドエピクロルヒドリン樹脂からなる湿潤紙力増強剤(昭和高分子社製、商品名「ポリフィックス301」)を、該水性スラリ−に対して2%となるよう添加し製紙用原料を作成した。該原料を円網抄紙機に適用して、坪量30g/mの原紙を作成した。
得られた原紙の引張り強さをJIS P8113に準じて測定したところ、縦方向が8.6Kg/15mm、横方向が1.6Kg/15mmであって、縦/横比は5.4であった。
上記で得られた原紙を、共通圧胴式中央圧胴型ユニット機構を有するフレキソ印刷機に装填し、水/アルコール系混合溶剤にアクリル系ビヒクルと赤色有機顔料を配合した紫外線硬化型フレキソインキからなる着色成分を使用して、該原紙の片面にベタ印刷して着色した。
次いで、この着色原紙を、ボビンワインダーにて、幅40mmのテープ状にスリット加工しテープとなし、これを撚り紙機にセットして28回/30cmの撚りをかけて自己撚りし、直径が3mmの赤色の自己撚り紐を作成した。得られた自己撚り紐を3本重ねて撚り合わせ本発明の着色紙紐を作成した。
[Example 1]
An aqueous slurry was prepared by beating domestic softwood unbleached kraft pulp (NUKP) at 60 ° SR, and a wet paper strength enhancer made of polyamide epichlorohydrin resin (made by Showa Polymer Co., Ltd., trade name “Polyfix 301”). )) Was added to the aqueous slurry so as to be 2% to prepare a papermaking raw material. The raw material was applied to a circular paper machine to prepare a base paper having a basis weight of 30 g / m 2 .
When the tensile strength of the obtained base paper was measured according to JIS P8113, the longitudinal direction was 8.6 kg / 15 mm, the transverse direction was 1.6 kg / 15 mm, and the aspect ratio was 5.4. .
The base paper obtained above is loaded into a flexographic printing machine having a common impression cylinder type central impression cylinder unit mechanism, and from an ultraviolet curable flexographic ink in which an acrylic vehicle and a red organic pigment are mixed in a water / alcohol mixed solvent. Using this coloring component, solid printing was performed on one side of the base paper for coloring.
Next, this colored base paper is slit into a tape shape with a width of 40 mm with a bobbin winder to form a tape, which is set on a twisting paper machine and self-twisted by 28 times / 30 cm twist, with a diameter of 3 mm. Made a red self-twisted string. Three of the obtained self-twisted strings were layered and twisted to create the colored paper string of the present invention.

[実施例2]
NUKP80重量%とマニラ麻パルプ20重量%とを混合して60゜SRに叩解して水性スラリ−を作成した以外は、全て実施例1と同じ条件にて原紙を作成した。
得られた原紙の引張り強さをJIS P8113に準じて測定したところ、縦方向が11.8Kg/15mm、横方向が2.1Kg/15mmであって、縦/横比は5.6であった。
この原紙を使用して、実施例1と同じ条件にて印刷後、自己撚り紐を作製し、3本をより合わせて本発明の着色紙紐を作製した。
[Example 2]
A base paper was prepared under the same conditions as in Example 1 except that 80% by weight of NUKP and 20% by weight of Manila hemp pulp were mixed and beaten at 60 ° SR to prepare an aqueous slurry.
When the tensile strength of the obtained base paper was measured according to JIS P8113, the longitudinal direction was 11.8 kg / 15 mm, the transverse direction was 2.1 kg / 15 mm, and the aspect ratio was 5.6. .
Using this base paper, after printing under the same conditions as in Example 1, a self-twisted string was produced, and the three pieces were combined to produce the colored paper string of the present invention.

[実施例3]
国産の針葉樹未晒クラフトパルプ(NUKP)を50゜SRに叩解して水性スラリ−を作成し、これにポリアミドエピクロルヒドリン樹脂からなる湿潤紙力増強剤(昭和高分子社製、商品名「ポリフィックス301」)を、該水性スラリ−に対して2.5%となるよう添加し製紙用原料を作成した。該原料を円網抄紙機に適用して、坪量41.5g/mの原紙を作成した。
得られた原紙の引張り強さをJIS P8113に準じて測定したところ、縦方向が13.1Kg/15mm、横方向が1.9Kg/15mmであって、縦/横比は6.8であった。
この原紙を使用して、実施例1と同じ条件にて印刷後、自己撚り紐を作成し、3本をより合わせて本発明の着色紙紐を作製した。
[Example 3]
A domestic slurry of unbleached kraft pulp (NUKP) produced in Japan is beaten to 50 ° SR to prepare an aqueous slurry, and a wet paper strength enhancer made of polyamide epichlorohydrin resin (made by Showa Polymer Co., Ltd., trade name “Polyfix 301”). )) Was added to 2.5% of the aqueous slurry to prepare a papermaking raw material. The raw material was applied to a circular paper machine to produce a base paper having a basis weight of 41.5 g / m 2 .
When the tensile strength of the obtained base paper was measured according to JIS P8113, the longitudinal direction was 13.1 Kg / 15 mm, the lateral direction was 1.9 Kg / 15 mm, and the aspect ratio was 6.8. .
Using this base paper, after printing under the same conditions as in Example 1, a self-twisted string was created, and the three were combined to produce the colored paper string of the present invention.

[実施例4]
国産の針葉樹未晒クラフトパルプ(NUKP)を50゜SRに叩解して水性スラリ−を作成し、これにポリアミドエピクロルヒドリン樹脂からなる湿潤紙力増強剤(昭和高分子社製、商品名「ポリフィックス301」)を、該水性スラリ−に対して2.5%となるよう添加し製紙用原料を作成した。該原料を円網抄紙機に適用して、坪量42g/mの原紙を作成した。
得られた原紙の引張り強さをJIS P8113に準じて測定したところ、縦方向が13.1Kg/15mm、横方向が1.9Kg/15mmであって、縦/横比は6.8であった。
この原紙を使用して、実施例1と同じ条件にて印刷後、自己撚り紐を作成し、3本をより合わせて本発明の着色紙紐を作製した。
[Example 4]
A domestic slurry of unbleached kraft pulp (NUKP) produced in Japan is beaten to 50 ° SR to prepare an aqueous slurry, and a wet paper strength enhancer made of polyamide epichlorohydrin resin (made by Showa Polymer Co., Ltd., trade name “Polyfix 301”). )) Was added to 2.5% of the aqueous slurry to prepare a papermaking raw material. The raw material was applied to a circular paper machine to produce a base paper having a basis weight of 42 g / m 2 .
When the tensile strength of the obtained base paper was measured according to JIS P8113, the longitudinal direction was 13.1 Kg / 15 mm, the lateral direction was 1.9 Kg / 15 mm, and the aspect ratio was 6.8. .
Using this base paper, after printing under the same conditions as in Example 1, a self-twisted string was created, and the three were combined to produce the colored paper string of the present invention.

[比較例]
実施例1に記載の水性スラリ−中に、赤色染料(保土ヶ谷化学社製、商品名;アイゼンカチロンレッドGTLH200%)をNUKPに対して0.25%となるように配合した以外は、実施例1と同様にして比較用の着色原紙を作成した。
得られた比較用の着色原紙に対して、実施例1と同じ手順にて赤色の自己撚り紐3本をより合わせて比較用の着色紙紐を作成した。
[Comparative example]
Example A red dye (made by Hodogaya Chemical Co., Ltd., trade name: Eisen Katyron Red GTLH 200%) was added to the aqueous slurry described in Example 1 so as to be 0.25% based on NUKP. In the same manner as in No. 1, a colored base paper for comparison was prepared.
With respect to the obtained colored base paper for comparison, three colored self-twisted cords were combined together in the same procedure as in Example 1 to prepare a colored paper cord for comparison.

実施例1〜4の本発明の着色紙紐と比較例の着色紙紐の性能評価を下記の通り行った。すなわち、実施例1〜4の本発明の着色紙紐と比較例の着色紙紐を屋外の晴天下にて、1Kgの荷重をかけて放置し経過観察を行った。
その結果、実施例の着色紙紐は、放置直後から2ヶ月経過の過程で鮮明な赤色を維持したが、比較例の着色紙紐は、作成時において鮮明な着色が得られず、かつ2週間経過後に赤色が退色し、商品価値を維持出来なかった。
The performance evaluation of the colored paper string of Examples 1 to 4 of the present invention and the colored paper string of the comparative example was performed as follows. That is, the colored paper strings of the present invention of Examples 1 to 4 and the colored paper strings of the comparative example were left under an outdoor sunny day with a load of 1 kg, and the follow-up observation was performed.
As a result, the colored paper string of the example maintained a clear red color in the process of two months from immediately after being left, but the colored paper string of the comparative example could not obtain a clear color at the time of preparation, and for two weeks. After the lapse of time, the red color faded and the commercial value could not be maintained.

本発明によれば、鮮明で光沢のある色調を長時間経過後も維持できる着色紙紐を提供することができ、これにより、ファッション性豊かなイベント用や工事用等多くの用途に適用できる効果が期待できる。   According to the present invention, it is possible to provide a colored paper string that can maintain a vivid and glossy color tone even after a long time has passed, and thereby, an effect that can be applied to many uses such as for fashion-rich events and construction. Can be expected.

本発明の着色紙紐に用いられる着色原紙の構造の一例を示す部分断面図である。It is a fragmentary sectional view which shows an example of the structure of the colored base paper used for the colored paper string of this invention. 本発明の着色紙紐の一例の部分斜視図である。It is a fragmentary perspective view of an example of the colored paper string of this invention.

符号の説明Explanation of symbols

11 原紙
12 着色層
13 テープ状にスリットした着色原紙
13a 黄色の着色原紙の自己撚り紐(2本)
13b 黒色の着色原紙の自己撚り紐(1本)
14 本発明の着色紙紐
11 Base paper 12 Colored layer 13 Colored base paper slit into a tape shape 13a Self-twisted string of yellow colored base paper (2)
13b Self-twisted string of black colored base paper (1)
14 Colored paper string of the present invention

Claims (6)

原紙の少なくとも片面に、着色顔料を主成分とする着色成分をもって、印刷により着色を施してなる原紙のテープの着色面を外側にして撚った自己撚り紐を、複数本撚り合わせしてなることを特徴とする着色紙紐。 A plurality of self-twisted strings twisted with the colored surface of the base paper tape that is colored by printing, with the coloring component as the main component, on at least one side of the base paper Colored paper string characterized by 前記印刷がフレキソ印刷であることを特徴とする請求項1に記載の着色紙紐。 The colored paper string according to claim 1, wherein the printing is flexographic printing. 前記原紙を構成するパルプ原料の70%以上が針葉樹クラフトパルプからなることを特徴とする請求項1もしくは請求項2に記載の着色紙紐。 The colored paper string according to claim 1 or 2, wherein 70% or more of the pulp raw material constituting the base paper is made of softwood kraft pulp. 前記原紙のJIS P8113により測定された引張り強さの縦/横比が、5〜15であることを特徴とする請求項1,請求項2もしくは請求項3のいずれかに記載の着色紙紐。 4. The colored paper string according to claim 1, wherein an aspect ratio of the tensile strength measured by JIS P8113 of the base paper is 5 to 15. 5. パルプ原料の70%以上が針葉樹クラフトパルプからなる抄紙原料を湿式抄紙によって原紙を抄紙する抄紙工程と、該原紙の少なくとも片面に着色顔料を主成分とする着色成分をもって印刷により着色を施すことにより着色原紙を作成する着色工程と、該着色原紙をテープに切断し切断テープを作成する工程と、該切断テープの着色面を外側にして撚って自己撚り紐を作成する工程と、該自己撚り紐を複数本撚り合わせて着色紙紐を作成する工程、とからなることを特徴とする着色紙紐の製造方法。 Colored by printing with a papermaking process in which 70% or more of the pulp raw material is made of softwood kraft pulp, and the base paper is made by wet papermaking, and at least one side of the base paper is colored with a coloring component as a main component. A coloring step of creating a base paper, a step of cutting the colored base paper into a tape to produce a cutting tape, a step of twisting the colored surface of the cutting tape outward to create a self-twisting cord, and the self-twisting cord A method of producing a colored paper string by twisting a plurality of the colored paper strings. 前記印刷がフレキソ印刷であることを特徴とする請求項5に記載の着色紙紐の製造方法。 6. The colored paper string manufacturing method according to claim 5, wherein the printing is flexographic printing.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010222756A (en) * 2009-03-25 2010-10-07 Jx Nippon Oil & Energy Corp Twisted yarn and yarn and manufacturing method of the same
CN102852040A (en) * 2012-08-31 2013-01-02 金华盛纸业(苏州工业园区)有限公司 Preparation method for dyeing raw paper
JP2013117078A (en) * 2011-12-05 2013-06-13 I So Tope:Kk Compound paperfiber thread and manufacturing method thereof
JP2020076159A (en) * 2018-11-05 2020-05-21 一ツ山産業株式会社 Handles of paper bag and braided cord for handicraft
JP2022020444A (en) * 2020-07-20 2022-02-01 株式会社和紙の布 Japanese paper yarn made of conifer and manufacturing method thereof and japanese paper fabric using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010222756A (en) * 2009-03-25 2010-10-07 Jx Nippon Oil & Energy Corp Twisted yarn and yarn and manufacturing method of the same
JP2013117078A (en) * 2011-12-05 2013-06-13 I So Tope:Kk Compound paperfiber thread and manufacturing method thereof
CN102852040A (en) * 2012-08-31 2013-01-02 金华盛纸业(苏州工业园区)有限公司 Preparation method for dyeing raw paper
JP2020076159A (en) * 2018-11-05 2020-05-21 一ツ山産業株式会社 Handles of paper bag and braided cord for handicraft
JP7269616B2 (en) 2018-11-05 2023-05-09 一ツ山産業株式会社 Braided cord for handle of paper bag and manufacturing method thereof
JP2022020444A (en) * 2020-07-20 2022-02-01 株式会社和紙の布 Japanese paper yarn made of conifer and manufacturing method thereof and japanese paper fabric using the same

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