JP2017109849A - Paper tube - Google Patents
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- JP2017109849A JP2017109849A JP2015246315A JP2015246315A JP2017109849A JP 2017109849 A JP2017109849 A JP 2017109849A JP 2015246315 A JP2015246315 A JP 2015246315A JP 2015246315 A JP2015246315 A JP 2015246315A JP 2017109849 A JP2017109849 A JP 2017109849A
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Abstract
Description
本発明は、各種の捲装物を巻取るための紙管で、さらに詳しくは、紙管切断時における切断刃の摩擦抵抗が少なく、紙粉の発生を抑えることができる紙管に関するものである。 The present invention relates to a paper tube for winding various types of fittings. More specifically, the present invention relates to a paper tube that has less frictional resistance of a cutting blade when cutting the paper tube and can suppress generation of paper dust. .
従来から、フィルム、シート、金属箔、紙などの捲装物を巻き付ける時に使用する紙管は、一般的には紙管原紙からなる所定幅の帯状原紙を複数枚互いにずらして、接着剤で重合接着させながらスパイラル状に多数層巻回することにより形成されている。 Conventionally, a paper tube used for winding up decorations such as films, sheets, metal foils, paper, etc., is generally polymerized with an adhesive by shifting a plurality of strip-shaped base papers made of paper tube base paper from each other. It is formed by winding a large number of layers in a spiral while bonding.
この紙管は、捲装物の巻幅に応じて切断刃により一定の寸法毎に切断されるが、その切断加工は、図３に示すように、回転駆動される切芯軸１０に嵌まった紙管１１の上方に配置した回転自由な切断刃１２が下降して紙管１１に喰い込ませて切断されている。 The paper tube is cut into a certain size by a cutting blade according to the winding width of the fitting, and the cutting process is fitted to a rotating core shaft 10 as shown in FIG. The rotating free cutting blade 12 disposed above the paper tube 11 is lowered and cut into the paper tube 11 to be cut.
前記切断刃１２は、紙管１１を切り終えると切芯軸１０に当たるので、当接した瞬間に切芯軸１０から離れるような手段を講じているが、瞬間的にも切芯軸１０に接触することになり、その回数が増えると摩耗が進み切断刃１２の切れ味が低下することになる。 Since the cutting blade 12 hits the core shaft 10 when the paper tube 11 has been cut, a measure is taken to leave the core shaft 10 at the moment of contact. As the number of times increases, wear progresses and the sharpness of the cutting blade 12 decreases.
切断刃１２の切れ味が低下すると、図４に示すように、紙管１１の上下切断面１３，１４にバリ、カエリ、メクレなどの不良部１５，１６が発生すると共に、紙を構成するパルプ繊維が露出するため、紙粉といわれる微細化したパルプ繊維の脱落が発生しやすく、この微細な紙粉が飛散して捲装物に付着する問題が生じる。 When the sharpness of the cutting blade 12 is lowered, as shown in FIG. 4, defective portions 15 and 16 such as burrs, burrs, and creases are generated on the upper and lower cut surfaces 13 and 14 of the paper tube 11, and pulp fibers constituting the paper Is exposed, and fine pulp fibers called paper powder are likely to fall off, causing a problem that the fine paper powder scatters and adheres to the fitting.
また、たとえ紙管を切断することなく、そのまま使用する場合においても、運輸時や搬送時に衝撃を受けたり他物との接触により、表面および両端面から多数の紙粉が発生して、紙管に付着することになり、製品出荷前にユーザの方で埃を除去する作業をしなければならない。 Also, even when the paper tube is used without being cut, a large number of paper dust is generated from the surface and both end surfaces due to impact during transportation or transportation or contact with other objects. Therefore, the user must remove dust before shipping the product.
そこで、紙管の切断面に刷毛で合成樹脂を塗着して紙粉を飛散しないようにしているが、面積の小さい肉厚部でうまく塗着できないばかりでなく、塗着して盛り上がった箇所を平滑面に研磨しなければならず、塗着と研磨の両作業をする必要が生じ、手間がかかるといった問題点がある。 Therefore, synthetic resin is applied to the cut surface of the paper tube with a brush to prevent the paper dust from scattering. Has to be polished to a smooth surface, and it is necessary to perform both the coating and polishing operations, which is troublesome.
また、別の紙粉の発生を抑えるものとして、帯状原紙を無塵紙または硫酸紙を用いて形成された紙管(例えば、特許文献１参照)、あるいは帯状原紙をバルカナイズファイバーによって形成された紙管が提案されている(例えば、特許文献２参照)。 In order to suppress the generation of another paper dust, a paper tube formed by using dust-free paper or sulfuric acid paper as a strip base paper (for example, see Patent Document 1), or a paper tube formed by vulcanized fiber as a strip base paper. Has been proposed (see, for example, Patent Document 2).
しかしながら、前記特許文献１、２のように、帯状原紙が無塵紙、硫酸紙またはバルカナイズファイバーで形成された紙管は、内周面および外周面からの紙粉は抑えられたとしても、両端面からの紙粉については止めることができない。また、一般的な紙管原紙で作られる紙管と比べて大幅なコスト高になる問題点がある。 However, as in Patent Documents 1 and 2, the paper tube in which the strip-shaped base paper is formed of dust-free paper, sulfuric acid paper, or vulcanized fiber has both end faces even if paper dust from the inner and outer peripheral surfaces is suppressed. The paper powder from can not be stopped. In addition, there is a problem that the cost is significantly higher than that of a paper tube made of a general paper tube base paper.
本発明は、上記のような問題点に鑑み開発されたもので、接着剤に潤滑剤が混入されていて、切断刃との摩擦抵抗が小さくなり円滑に切断でき、切断面にバリ、カエリ、メクレなどの不良部がなくなって、紙粉の発生が抑えられて美麗な切断面を持つ紙管を提供するものである。 The present invention has been developed in view of the above problems, and a lubricant is mixed in the adhesive, so that the frictional resistance with the cutting blade is reduced and can be cut smoothly. It is intended to provide a paper tube having a beautiful cut surface in which defective parts such as creases are eliminated and generation of paper dust is suppressed.
上記の課題を解決し、その目的を達成するために、本発明に係る紙管は、帯状原紙に接着剤を塗着して多数層巻き付けて形成される紙管であって、前記接着剤に潤滑剤が混入されていることを特徴とするものである。 In order to solve the above problems and achieve the object, a paper tube according to the present invention is a paper tube formed by applying an adhesive to a strip base paper and winding it in multiple layers, A lubricant is mixed therein.
これによれば、接着剤に潤滑剤が混入されており、切断面の接着剤には必ず潤滑剤が少量含まれているので、紙管の切断に際し、摩擦抵抗が少なく滑らかになり綺麗な切断面になる。 According to this, the lubricant is mixed in the adhesive, and the adhesive on the cut surface always contains a small amount of lubricant, so when cutting the paper tube, it has less frictional resistance and is smooth and clean. It becomes a surface.
ここで、前記潤滑剤は親水性潤滑油であるのが好ましい。これによって、接着剤と混練しやすく潤滑油が均一に混練され、紙管のどの位置で切断しても潤滑油が含有されていてスムーズな切断が可能になる。 Here, the lubricant is preferably a hydrophilic lubricating oil. As a result, the lubricating oil is easily kneaded with the adhesive, and the lubricating oil is uniformly kneaded. Even if the lubricating oil is cut at any position of the paper tube, the lubricating oil is contained and smooth cutting is possible.
ここで、親水性潤滑油は流動パラフィンであるのが好ましい。流動パラフィンは常温で無色の液体であり、不揮発性の化学的に安定な物質であり、乳化しやすく伸びや浸透性に優れることから、切断面に少量の流動パラフィンが滲出することになり、切断刃の切れ味が良くなる。 Here, the hydrophilic lubricating oil is preferably liquid paraffin. Liquid paraffin is a colorless liquid at room temperature and is a non-volatile, chemically stable substance that is easily emulsified and has excellent elongation and permeability. The sharpness of the blade is improved.
ここで、流動パラフィンの量は、接着剤１００重量部に対して、1０〜２０重量部含有するのが好ましい。これによって、切断刃の摩擦抵抗が少なくなって切れ味が良くなる。また、前記含有量の範囲内であれば紙管の強度や接着力に何ら変わることがない。 Here, the amount of liquid paraffin is preferably 10 to 20 parts by weight with respect to 100 parts by weight of the adhesive. This reduces the frictional resistance of the cutting blade and improves the sharpness. Moreover, if it is in the said content range, there will be no change in the strength and adhesive strength of the paper tube.
以上説明したように、本発明は、切断刃の紙管への喰い込み、切断がスムーズになり、切断時や搬送時に生じていた紙粉の発生を抑えることができ、厳しく設定された清浄度のクリーン室で使用可能な紙管になる。また、切断刃の摩耗を防ぎ傷めることなく、切れ味が鋭く長期に亘って使用できる。 As described above, the present invention makes it possible to smoothly cut the cutting blade into the paper tube, cut it, suppress the generation of paper dust generated during cutting and transporting, and set a strictly set cleanliness level. It becomes a paper tube that can be used in a clean room. In addition, the cutting blade is sharp and sharp and can be used for a long period of time without damaging the cutting blade.
以下、本発明に係る紙管の実施形態について説明する。
紙管１は、所定幅の帯状原紙２に接着剤３を塗布しつつスパイラル状に多数層巻回して中空の筒状に形成されたものである。
Hereinafter, embodiments of the paper tube according to the present invention will be described.
The paper tube 1 is formed in a hollow cylindrical shape by winding a plurality of layers in a spiral shape while applying an adhesive 3 to a strip-shaped base paper 2 having a predetermined width.
帯状原紙２としては、紙管原紙、ダンボール原紙、クラフト紙など所定幅に切断された耐強化性の紙を用いるのが適している。 As the strip-shaped base paper 2, it is suitable to use a reinforced paper cut to a predetermined width such as a paper tube base paper, a cardboard base paper, or a kraft paper.
。
接着剤３としては、澱粉、ポリビニールアルコール、酢酸ビニル系エマルジョンなどの１種または２種以上をベースとしたものが用いられ、この接着剤３に潤滑剤が含有されており、帯状原紙への接着剤の塗布量は１０ｇ／ｍ２〜４０ｇ／ｍ２が好ましい。
.
As the adhesive 3, one based on one or more of starch, polyvinyl alcohol, vinyl acetate emulsion and the like is used. The adhesive 3 contains a lubricant, and is applied to the strip base paper. the coating amount of the adhesive 10g / m 2 ~40g / m 2 is preferred.
前記の潤滑剤としては、切断刃と接着剤の接触部の摩擦および摩耗を減じる目的で使用する物質のことであり、鉱油、動植物油、蝋および合成油など液状の潤滑油、グリースおよび二流化モリブデン結晶のような固体潤滑などがあるが液状の親水性潤滑油を用いる。 The above-mentioned lubricant is a substance used for the purpose of reducing friction and wear at the contact portion between the cutting blade and the adhesive, and is a liquid lubricant such as mineral oil, animal and vegetable oil, wax and synthetic oil, grease and two-flow lubricant. There is solid lubrication such as molybdenum crystal, but liquid hydrophilic lubricating oil is used.
前記液状の親水性潤滑油としては、石油から潤滑剤成分を得る際に、石油留分よりロウ成分を除去して得た油を、さらに蒸留して得られる留出油の流動パラフィンを用いるのがよい。 As the liquid hydrophilic lubricating oil, liquid paraffin of distillate obtained by further distilling oil obtained by removing the wax component from the petroleum fraction when the lubricant component is obtained from petroleum is used. Is good.
前記流動パラフィンは、オレフィン系飽和炭化水素の混在物であり、かつ平均炭素数が２０〜３５個の範囲内であり、常温で液体あることが好ましい。流動パラフィンの量は、接着剤１００重量部に対して、1０〜２０重量部の範囲内であり、１０重量部以下になると回転刃の抵抗が増し切れ味が悪くなり紙粉の発生が増えるので適さず、また、２０重量部を超えたとしても、それに見合うように発塵性を低下させることができない。 The liquid paraffin is a mixture of olefin-based saturated hydrocarbons, has an average carbon number in the range of 20 to 35, and is preferably liquid at room temperature. The amount of liquid paraffin is in the range of 10 to 20 parts by weight with respect to 100 parts by weight of the adhesive, and if it is 10 parts by weight or less, the resistance of the rotary blade increases, the sharpness deteriorates, and the generation of paper dust increases. Moreover, even if the amount exceeds 20 parts by weight, the dust generation property cannot be lowered to meet the requirement.
つぎに、本発明の接着剤に潤滑剤を混入した紙管と、従来のポリビニールアルコール接着剤を塗布しただけの紙管について、発塵の発生度合いについて測定したところ、下記の表１に結果が得られた。 Next, the degree of generation of dust was measured for a paper tube in which a lubricant was mixed in the adhesive of the present invention and a paper tube in which a conventional polyvinyl alcohol adhesive was simply applied. The results are shown in Table 1 below. was gotten.
前記表１に示す結果から明らかなように、本発明に係る潤滑剤混入の接着剤を用いた紙管にあっては、従来の一般的な紙管に比べて極めて発塵の発生が少なくなるのが明白である。 As is apparent from the results shown in Table 1, in the paper tube using the lubricant-mixed adhesive according to the present invention, the generation of dust is extremely reduced as compared with the conventional general paper tube. It is obvious.
上記評価方法としては、測定機器として、パーティクルカウンターＨＣを用い、内径が７６．３φで肉厚が７ｍｍの紙管を、５０００本切断後、３０ｍｍ幅で２０回カットし、帯電防止用のポリ袋内に入れて振り、袋の中のパーティクル量を測定した。テストのパーティクル量から作業場のパーティクル量を引いた数値、増加量を表記した。 As the evaluation method, a particle counter HC is used as a measuring device, and after cutting 5000 paper tubes with an inner diameter of 76.3φ and a thickness of 7 mm, the tube is cut 20 times with a width of 30 mm, and an antistatic plastic bag The container was shaken and the amount of particles in the bag was measured. A numerical value obtained by subtracting the amount of particles in the workshop from the amount of particles in the test, and the amount of increase are shown.
以上、本発明における紙管の実施形態においては、帯状原紙に塗着する接着剤に潤滑剤を混入する例で説明したが、これに限定されるものではなく、接着剤および帯状原紙に潤滑剤が混入する場合もある。また、スパイラル紙管だけでなく、平巻き紙管の場合でも良く、本発明の目的を達成し、且つ発明の要旨を逸脱しない範囲内で種々の設計変更が可能であることは言うまでもない。 As described above, in the embodiment of the paper tube according to the present invention, the example in which the lubricant is mixed in the adhesive to be applied to the strip base paper has been described. However, the present invention is not limited thereto, and the lubricant is applied to the adhesive and the strip base paper. May be mixed. Needless to say, not only a spiral paper tube but also a flat paper tube may be used, and various design changes can be made without departing from the gist of the invention and achieving the object of the present invention.
本発明は、空気中の浮遊塵埃が限定された清浄度レベル以下となるよう管理された室内での捲装物の巻取り、巻戻し作業に用いる紙管として好適に使用できるものである。 INDUSTRIAL APPLICABILITY The present invention can be suitably used as a paper tube used for winding up and unwinding an equipment in a room managed so that airborne dust is below a limited cleanliness level.
１ 紙管
２ 帯状原紙
３ 接着剤
1 Paper tube 2 Strip base paper 3 Adhesive
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015246315A JP2017109849A (en) | 2015-12-17 | 2015-12-17 | Paper tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015246315A JP2017109849A (en) | 2015-12-17 | 2015-12-17 | Paper tube |
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| Publication Number | Publication Date |
|---|---|
| JP2017109849A true JP2017109849A (en) | 2017-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015246315A Pending JP2017109849A (en) | 2015-12-17 | 2015-12-17 | Paper tube |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62133476A (en) * | 1985-12-04 | 1987-06-16 | Dainippon Printing Co Ltd | Hologram transfer sheet with pattern |
| JP2005195505A (en) * | 2004-01-08 | 2005-07-21 | Sekisui Chem Co Ltd | Occult blood examination device |
| JP2006063250A (en) * | 2004-08-30 | 2006-03-09 | Daicel Chem Ind Ltd | Method for producing adhesive composition, adhesive composition and paper tube |
| JP2010125152A (en) * | 2008-11-28 | 2010-06-10 | Molten Corp | Ball |
-
2015
- 2015-12-17 JP JP2015246315A patent/JP2017109849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62133476A (en) * | 1985-12-04 | 1987-06-16 | Dainippon Printing Co Ltd | Hologram transfer sheet with pattern |
| JP2005195505A (en) * | 2004-01-08 | 2005-07-21 | Sekisui Chem Co Ltd | Occult blood examination device |
| JP2006063250A (en) * | 2004-08-30 | 2006-03-09 | Daicel Chem Ind Ltd | Method for producing adhesive composition, adhesive composition and paper tube |
| JP2010125152A (en) * | 2008-11-28 | 2010-06-10 | Molten Corp | Ball |
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