JP2006001225A - Ink follower for water-based ball-point pen - Google Patents
Ink follower for water-based ball-point pen Download PDFInfo
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- JP2006001225A JP2006001225A JP2004182140A JP2004182140A JP2006001225A JP 2006001225 A JP2006001225 A JP 2006001225A JP 2004182140 A JP2004182140 A JP 2004182140A JP 2004182140 A JP2004182140 A JP 2004182140A JP 2006001225 A JP2006001225 A JP 2006001225A
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- ink
- water
- ink follower
- follower
- based ballpoint
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- 239000011256 inorganic filler Substances 0.000 claims abstract description 4
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 4
- 229920005594 polymer fiber Polymers 0.000 claims description 10
- 239000002199 base oil Substances 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 229920006124 polyolefin elastomer Polymers 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 239000002480 mineral oil Substances 0.000 description 11
- 235000010446 mineral oil Nutrition 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 101100261151 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TPO5 gene Proteins 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000003349 gelling agent Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 241000218645 Cedrus Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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- Pens And Brushes (AREA)
Abstract
Description
本発明はインク収容管内に直接収容する水性ボールペン用インクの尾端部に使用するインク追従体に関する。 The present invention relates to an ink follower used for a tail end portion of water-based ballpoint pen ink that is directly stored in an ink storage tube.
水性ボールペンのインキの粘度は、比較的低粘度であるため、ペンを上向き又は横向きに放置した場合には、追従体が無ければインキが漏出する、あるいは、軽度の衝撃でもインキが飛散し、手や服を汚してしまうという恐れがあった。そのため、これまでに数多くのインキ追従体に関する提案が為されてきた。
特許文献１には、炭化水素類より選ばれた難揮発性有機溶媒或いは不揮発性有機溶媒を基材とし，これにポリオレフィン系の熱可塑性エラストマーと比重の調整剤として微粒子無機粉体を配合してなることを特徴とする比重が１以上の水性ボールペン用インク追従体が開示されている。これらはタック性が高く、インクの流量が渋くなり、また、クリアドレイン性も悪いという問題があった。 In Patent Document 1, a non-volatile organic solvent or a non-volatile organic solvent selected from hydrocarbons is used as a base material, and a polyolefin-based thermoplastic elastomer and a fine particle inorganic powder as a specific gravity adjuster are blended therein. A water-based ballpoint pen ink follower having a specific gravity of 1 or more is disclosed. These have problems of high tackiness, low ink flow rate, and poor clear drainability.
また、特許文献２には追従体組成物に添加した無機微粒子増粘剤が緩やかな鎖状構造をとるらしいことが記載されているが、増粘剤が結果的に鎖状構造をとり、追従体の離油を防止するらしいことが示唆されているが、意図的に繊維体を加えて耐衝撃性、追従性、離油性など追従体組成物の性能全般を向上させることについては記載も示唆も無い。 Further, Patent Document 2 describes that the inorganic fine particle thickener added to the follower composition seems to have a gentle chain structure, but the thickener eventually takes a chain structure and follows. Although it is suggested that it seems to prevent oil separation of the body, description is also suggested to improve the overall performance of the follower composition such as impact resistance, followability, oil separation property by intentionally adding fiber body There is no.
また、特許文献３および特許文献４にみられるように、アミノ変性シリコーンオイルの骨格のシリコーンを用いてインク追従性を保つ方法が開示されている。しかし、リフィールの遠心脱泡工程でシリコーンだけ分離したり、経時的にシリコーンだけ離油する懸念もあった。 Further, as seen in Patent Document 3 and Patent Document 4, a method of maintaining ink followability using a silicone having a skeleton of an amino-modified silicone oil is disclosed. However, there was a concern that only the silicone was separated in the refill centrifugal defoaming step, or that only the silicone was separated over time.
また、特許文献５には、難揮発性有機液体或いは不揮発性有機液体を基材とし、それにゲル化剤等を添加して増粘させたインキ追従体が開示されている。このような化学的な増粘を促進させるとクリアドレイン性が低下し、さらに経時的にインク追従性が低下する問題があった。 Further, Patent Document 5 discloses an ink follower in which a hardly volatile organic liquid or a non-volatile organic liquid is used as a base material and a gelling agent or the like is added thereto to increase the viscosity. When such chemical thickening is promoted, there is a problem that clear drainability is lowered and ink followability is lowered with time.
また、特許文献６には、水性ボールペンを落下させたときに備えて、フォロワー内にフロートを入れる方法が開示されている。しかし、フォロワー自体に十分な耐落下衝撃性があればフロートを入れる必要はなく、より安価に、工程数を少なくボールペンを製造出来ることとなる。 Patent Document 6 discloses a method for putting a float in a follower in preparation for dropping an aqueous ball-point pen. However, if the follower itself has sufficient drop impact resistance, it is not necessary to add a float, and a ballpoint pen can be manufactured at a lower cost and with fewer steps.
このような従来の逆流防止剤にあっては、逆流防止剤に求められる性能の全てを満足することはできない。すなわち、逆流防止剤には、（１）耐衝撃性が良好なこと、（２）追従性が良好なこと、（３）インクのかすれがないこと、（４）インク追従体そのもの、あるいは油分離による油のたれや横流れ現象が生じないこと、の４つの性能が求められるが、ゲル化剤やオレフィン系熱可塑性エラストマーの量の加減調整しても、全ての性能を満足することはできない。 Such a conventional backflow preventive agent cannot satisfy all of the performance required for the backflow preventive agent. That is, the backflow preventive agent has (1) good impact resistance, (2) good followability, (3) no ink fading, (4) ink follower itself, or oil separation. However, even if the amount of the gelling agent or the olefinic thermoplastic elastomer is adjusted, it is not possible to satisfy all of the performances.
本発明者は、前述のような実情に鑑み、全ての性能を満足することができる逆流防止剤の研究を鋭意行ってきた結果、その逆流防止剤の開発に成功したものである。 In view of the above situation, the present inventor has intensively researched a backflow preventing agent that can satisfy all the performances, and as a result, has succeeded in developing the backflow preventing agent.
即ち、この発明に係る水性ボールペンインクの逆流防止剤は、下記の通りである。
（１）繊維体が配合されたことを特徴とする水性ボールペン用インク追従体。
（２）前記繊維体が高分子繊維であることを特徴とした（１）に記載の水性ボールペン用インク追従体。
（３）前記繊維体の配合量が重量比で２％以上４０％以下であることを特徴とした（１）または（２）に記載の水性ボールペン用インク追従体。
（４）前記繊維体が１デシテックスから１５０デシテックスの繊維であることを特徴とした（１）〜（３）に記載の水性ボールペン用インク追従体。
（５）前期繊維体に加え、少なくとも非水溶性有機溶剤からなる基油、オレフィン系エラストマー、およびタック性調整剤として無機フィラーを含有することを特徴とした（１）〜（４）に記載の水性ボールペン用インク追従体。
（６）比重が０．８６以上１．０未満であることを特徴とした（１）〜（５）に記載の水性ボールペン用インク追従体。
That is, the backflow preventive agent for the water-based ballpoint pen ink according to the present invention is as follows.
(1) An ink follower for a water-based ballpoint pen, wherein a fibrous body is blended.
(2) The ink follower for water-based ballpoint pen according to (1), wherein the fibrous body is a polymer fiber.
(3) The ink ball follower for water-based ballpoint pens according to (1) or (2), wherein the amount of the fibrous body is 2% to 40% by weight.
(4) The ink follower for water-based ballpoint pens according to (1) to (3), wherein the fibrous body is a fiber of 1 dtex to 150 dtex.
(5) The base oil comprising at least a water-insoluble organic solvent, an olefin-based elastomer, and an inorganic filler as a tackiness modifier in addition to the fibrous body in the previous period, wherein the filler is (1) to (4) Ink follower for water-based ballpoint pens.
(6) The ink follower for water-based ballpoint pens according to (1) to (5), wherein the specific gravity is 0.86 or more and less than 1.0.
本発明に使用出来る基油としては、常温液状炭化水素、シリコーンオイルなどが挙げられる。 Base oils that can be used in the present invention include room temperature liquid hydrocarbons, silicone oils, and the like.
常温液状炭化水素としては、鉱物油、エチレン−α−オレフィンコオリゴマー、ポリブテン、ポリ−α−オレフィン油、ポリエーテル合成油等を使用することができる。特に常温液状炭化水素としてはパラフィン系オイル（ＰＷ−９０）（出光興産）、ナフテン系オイル（ＮＳ−１００）（出光興産）を好ましく挙げることが出来る。
また、シリコーンオイルとしては、ＫＦ９６（信越シリコーン）、ＳＨ２０３、ＳＨ２３０、ＳＨ３７４９、ＳＨ８７００、ＳＦ８４１０、ＳＦ８４１６（東レ・ダウ・コーニング・シリコーン）、等を使用することができる。
As room temperature liquid hydrocarbons, mineral oil, ethylene-α-olefin co-oligomer, polybutene, poly-α-olefin oil, polyether synthetic oil, and the like can be used. In particular, paraffinic oil (PW-90) (Idemitsu Kosan) and naphthenic oil (NS-100) (Idemitsu Kosan) can be preferably cited as room temperature liquid hydrocarbons.
Further, as the silicone oil, KF96 (Shin-Etsu Silicone), SH203, SH230, SH3749, SH8700, SF8410, SF8416 (Toray Dow Corning Silicone), etc. can be used.
オレフィン系熱可塑性エラストマーとしては、オレフィン系熱可塑性エラストマーが、ポリエチレンブロックからなるブロックコポリマー、ポリスチレンブロックからなるブロックコポリマー等を挙げることが出来る。 Examples of the olefinic thermoplastic elastomer include a block copolymer composed of a polyethylene block and a block copolymer composed of a polystyrene block.
無機フィラーとしては、炭酸カルシウム、タルク、マイカ、クレー、酸化鉄、アルミナ、酸化マグネシウム、シリカ、酸化チタン等を使用することが出来る。 As the inorganic filler, calcium carbonate, talc, mica, clay, iron oxide, alumina, magnesium oxide, silica, titanium oxide and the like can be used.
本発明の要点である繊維体については、獣毛繊維、綿などの植物性繊維、絹、人工の高分子繊維などが挙げられるが、繊維の径、長さあるいは捻れ等を制御しやすい高分子からなる繊維が特に好ましい。使用するのに好ましい高分子繊維としてはポリエチレン、ポリプロピレン等が挙げられる。 Examples of the fibrous body that is the main point of the present invention include animal hair fibers, vegetable fibers such as cotton, silk, artificial polymer fibers, etc., but polymers that can easily control the fiber diameter, length, twist, etc. A fiber consisting of is particularly preferred. Preferred polymer fibers for use include polyethylene, polypropylene and the like.
本発明によれば、筆記流量、筆記速度によらず安定した追従性を有し、筆記途中でのインキ追従体が追従しないことに起因する描線のカスレを起こさず、ペン体に加えられた衝撃によってもインキ追従体が飛散せず、高温下でのペン体保管においてもインキ収容管からのインキ流出が発生しない水性ボールペン用インキ追従体が提供される。 According to the present invention, there is a stable followability regardless of the writing flow rate and writing speed, and the impact applied to the pen body does not cause blurring of the drawn lines due to the ink follower not following during writing. Therefore, the ink follower is not scattered, and an ink follower for a water-based ballpoint pen that does not cause ink outflow from the ink storage tube even when the pen body is stored at a high temperature is provided.
以下にインク追従体の実際例について説明する。
実施例１
鉱油（ＰＷ−９０）（出光興産） ９５部
ＴＰＯ５ （日本プラス工業） ５部
高分子繊維 ＰＥ８４Ｔ（ユニプラス）（７５デシテックス、長さ２〜３ｍｍ、）３０部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
An actual example of the ink follower will be described below.
Example 1
Mineral oil (PW-90) (Idemitsu Kosan) 95 parts TPO5 (Nihon Plus Kogyo) 5 parts polymer fiber PE84T (Uniplus) (75 dtex, length 2 to 3 mm) 30 parts blended over 1 hour, An ink follower for an aqueous ballpoint pen was obtained.
実施例２
鉱油（ＰＷ−９０）（出光興産） ９６部
ＴＰＯ７ （日本プラス工業） ４部
高分子繊維 ＰＥ１１０Ｔ（ユニプラス）（１００デシテックス、長さ２〜３ｍｍ）５部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Example 2
Mineral oil (PW-90) (Idemitsu Kosan) 96 parts TPO7 (Nihon Plus Kogyo) 4 parts polymer fiber PE110T (Uniplus) (100 dtex, length 2 to 3 mm) 5 parts blended with heating and stirring for 1 hour, aqueous An ink follower for a ballpoint pen was obtained.
比較例１
鉱油（ＰＷ−９０）（出光興産） ９５部
ＴＰＯ５ （日本プラス工業） ５部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Comparative Example 1
Mineral oil (PW-90) (Idemitsu Kosan Co., Ltd.) 95 parts TPO5 (Nippon Plus Kogyo Co., Ltd.) Heating and stirring was carried out for 1 hour with 5 parts of the mixture to obtain an ink follower for water-based ballpoint pens.
比較例２
鉱油（ＰＷ−９０）（出光興産） ９５部
ＴＰＯ５ （日本プラス工業） ５部
高分子繊維 ＰＥ８４Ｔ（ユニプラス）（７５デシテックス、長さ２〜３ｍｍ）１部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Comparative Example 2
Mineral oil (PW-90) (Idemitsu Kosan) 95 parts TPO5 (Nippon Plus Industry) 5 parts Polymer fiber PE84T (Uniplus) (75 dtex, length 2 to 3 mm) 1 part blended with heating and stirring for 1 hour, aqueous An ink follower for a ballpoint pen was obtained.
比較例３
鉱油（ＰＷ−９０）（出光興産） ９５部
ＴＰＯ５ （日本プラス工業） ５部
高分子繊維 ＰＥ１１０Ｔ（ユニプラス）（１００デシテックス、長さ２〜３ｍｍ）６０部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Comparative Example 3
Mineral oil (PW-90) (Idemitsu Kosan) 95 parts TPO5 (Nihon Plus Kogyo) 5 parts polymer fiber PE110T (Uniplus) (100 dtex, length 2 to 3 mm) 60 parts blended with heating and stirring for 1 hour, aqueous An ink follower for a ballpoint pen was obtained.
比較例４
鉱油（ＰＷ−９０）（出光興産） ９５部
ＴＰＯ５ （日本プラス工業） ５部
シリコン添加剤（ＦＺ−２１９１）（日本ユニカー） １部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Comparative Example 4
Mineral oil (PW-90) (Idemitsu Kosan Co., Ltd.) 95 parts TPO5 (Nihon Plus Industry) 5 parts Silicone additive (FZ-2191) (Nihon Unicar) 1 part of the mixture is heated and stirred for 1 hour, and ink follower for aqueous ballpoint pen Got.
比較例５
鉱油（ＰＷ−９０）（出光興産） ９３部
オレフィン系エラストマー（サーモラン３８５５Ｎ） （三菱化学） ７部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Comparative Example 5
Mineral oil (PW-90) (Idemitsu Kosan) 93 parts Olefin-based elastomer (Thermorun 3855N) (Mitsubishi Chemical) 7 parts of the mixture was heated and stirred for 1 hour to obtain an ink follower for an aqueous ballpoint pen.
比較例６
鉱油（ＰＷ−９０）（出光興産） ９３部
オレフィン系エラストマー（サーモラン３８５５Ｎ） （三菱化学） ７部
高分子繊維 ＰＥ８４Ｔ（ユニプラス）（７５デシテックス、長さ２〜３ｍｍ）５部
上配合で加熱攪拌を１時間行い、水性ボールペン用インク追従体を得た。
Comparative Example 6
Mineral oil (PW-90) (Idemitsu Kosan) 93 parts Olefin-based elastomer (Thermorun 3855N) (Mitsubishi Chemical) 7 parts Polymer fiber PE84T (Uniplus) (75 dtex, length 2-3 mm) 5 parts above After 1 hour, an ink follower for a water-based ballpoint pen was obtained.
比較例７
鉱油（ＰＷ−９０）（出光興産） ９５部
オイルゲル化剤（ＧＰ−１） （味の素） ５部
上配合で加熱攪拌を３０分間行い、水性ボールペン用インク追従体を得た。
Comparative Example 7
Mineral oil (PW-90) (Idemitsu Kosan Co., Ltd.) 95 parts Oil gelling agent (GP-1) (Ajinomoto) Heated and agitated for 30 minutes with 5 parts blended to obtain an ink follower for aqueous ballpoint pens.
比較例８
鉱油（ＰＷ−９０）（出光興産） ９５部
オイルゲル化剤（ＧＰ−１） （味の素） ５部
高分子繊維 ＰＥ８４Ｔ（ユニプラス）（７５デシテックス、長さ２〜３ｍｍ）５部
上配合で加熱攪拌を３０分間行い、水性ボールペン用インク追従体を得た。
Comparative Example 8
Mineral oil (PW-90) (Idemitsu Kosan) 95 parts Oil gelling agent (GP-1) (Ajinomoto) 5 parts Polymer fiber PE84T (Uniplus) (75 decitex, length 2-3 mm) 5 parts above This was carried out for 30 minutes to obtain an ink follower for a water-based ballpoint pen.
得られた各水性ボールペンについて、下記各評価方法により (1)落下衝撃耐性、(2)速書筆記追従性、(3)インクへの追従性、およびチューブへの付着性、(4)タレ性について評価した。これらの結果を下記表１に示す。 For each water-based ballpoint pen obtained, the following evaluation methods were used: (1) Drop impact resistance, (2) Speed writing followability, (3) Ink followability, tube adhesion, (4) Sagging properties Was evaluated. These results are shown in Table 1 below.
耐落下衝撃性の試験方法
各ペン体のペン先を上向きにし、１．５ｍ上空から厚さ２ｃｍの杉板上へ１回落下させ、落下後のペン体を目視で観察し、インク追従体のインク収容管外への飛散の度合いを下記評価基準で評価した。
評価基準：
〇：インク追従体の飛散がなく、インクとインク追従体の界面も鮮明である。
△：インク追従体の飛散はみられないが、インクとインク追従体の界面がペン体落下前と比べてやや乱れている。
×：明らかにインク追従体の飛散が認められ、インクがチューブ外へ逆流している。
Test method of drop impact resistance Each pen body is pointed upwards and dropped once from a height of 1.5 m onto a cedar board with a thickness of 2 cm. The degree of scattering to the outside of the ink containing tube was evaluated according to the following evaluation criteria.
Evaluation criteria:
A: There is no scattering of the ink follower, and the interface between the ink and the ink follower is clear.
Δ: No scattering of the ink follower is observed, but the interface between the ink and the ink follower is slightly disturbed compared to before the pen body is dropped.
X: Scattering of the ink follower is clearly recognized, and the ink flows backward out of the tube.
速書筆記追従性の評価方法
各ペン体をＩＳＯ規格に準拠した筆記用紙に、フリーハンドで２倍速と通常速度でそれぞれ筆記し、各筆記描線を下記評価基準で評価した。
評価基準：
○：スムースに安定して筆記できる。
△：２倍速筆記で線切れが起きる。
×：通常に筆記してもインクが追従せず線切れが起こる。
Evaluation method of speed writing follow-up performance Each pen body was written on a writing paper conforming to the ISO standard at a double speed and a normal speed with a free hand, and each writing line was evaluated according to the following evaluation criteria.
Evaluation criteria:
○: Can be written smoothly and stably.
(Triangle | delta): A line break occurs by double speed writing.
X: Even if it writes normally, ink does not track but a line break occurs.
追従性
各ペン体を５０℃、湿度６５％の条件でペン先（キャップ側）を上向きにして一ケ月間放置し、取り出し後、各ペン体をＩＳＯ規格に準拠した筆記用紙に、筆記拭験機にて下記条件で終筆まで「らせん筆記」し、１００ｍごとの筆記流量の推移と描線状態を下記の基準で評価した。
筆記条件：筆記速度；４．５ｍ／分、筆記角度；６０°、筆記荷重：１００ｇ機械筆記試験を行い、インク追従体の状態を下記評価基準で評価した。
評価基準:
○：ちぎれが確認されず、インク追従体がほぼそのままの体積でインクに追従した。
△：わずかな塊が筆記途中でちぎれたが、ほとんどのインク追従体がインクに追従した。
×：インクに追従せず、筆記途中で止まってしまった。あるいは、３分の１以上の塊が筆記途中でちぎれた。
Followability Each pen body is left for one month with the pen tip (cap side) facing upwards at 50 ° C and humidity of 65%. After taking out, each pen body is written on writing paper compliant with ISO standards. The machine was “spiral-written” until the final writing under the following conditions, and the transition of the writing flow rate and the drawing state every 100 m were evaluated according to the following criteria.
Writing conditions: writing speed: 4.5 m / min, writing angle: 60 °, writing load: 100 g A mechanical writing test was performed, and the state of the ink follower was evaluated according to the following evaluation criteria.
Evaluation criteria:
○: No tearing was confirmed, and the ink follower followed the ink with almost the same volume.
Δ: A slight lump was broken during writing, but most ink followers followed the ink.
X: The ink did not follow and stopped in the middle of writing. Or more than one third of the lump broke off during writing.
タレ性
各ペン体を５０℃、湿度６５％の条件でペン先（キャップ側）を上向きにして一ケ月間放置し、取り出し後、インク追従体の状態を下記評価基準で評価した。
評価基準:
○：リフィール外にインク追従体が流れ出なかった。
×：リフィール外にインク追従体が流れ出た。
Each sagging pen body was left for one month with the pen tip (cap side) facing upward at 50 ° C. and a humidity of 65%, and after taking out, the state of the ink follower was evaluated according to the following evaluation criteria.
Evaluation criteria:
○: The ink follower did not flow out of the refill.
X: The ink follower flowed out of the refill.
上記表１の結果から明らかなように、本発明の範囲となる実施例１および２は、本発明の範囲外となる比較例１〜４に較べて、全ての性能を満足することができる優れたものであることが判明した。すなわち、実施例１のインキ追従体は、（１）耐衝撃性が良好なこと、（２）追従性が良好なこと、（３）インクのかすれがないこと、（４）インク追従体そのもの、あるいは油分離による油のタレや横流れ現象が生じないことから、優れた性能を有するものであった。
As is clear from the results of Table 1 above, Examples 1 and 2, which are within the scope of the present invention, are superior in that they can satisfy all the performances as compared with Comparative Examples 1 to 4, which are outside the scope of the present invention. Turned out to be. That is, the ink follower of Example 1 has (1) good impact resistance, (2) good followability, (3) no ink fading, (4) ink follower itself, Or, since oil sagging and lateral flow phenomenon due to oil separation do not occur, it has excellent performance.
Claims (6)
The ink follower for water-based ballpoint pens according to claim 1, wherein the specific gravity is 0.86 or more and less than 1.0.
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|---|---|---|---|
| JP2004182140A JP4519537B2 (en) | 2004-06-21 | 2004-06-21 | Ink follower for water-based ballpoint pen |
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| JP2004182140A JP4519537B2 (en) | 2004-06-21 | 2004-06-21 | Ink follower for water-based ballpoint pen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007106062A (en) * | 2005-10-17 | 2007-04-26 | Mitsubishi Pencil Co Ltd | Ink follower for oily coating material applicator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS432342Y1 (en) * | 1965-10-30 | 1968-01-31 | ||
| JP2003145986A (en) * | 2001-11-09 | 2003-05-21 | Mitsubishi Pencil Co Ltd | Ink following element for aqueous ball-point pen |
| WO2003057507A1 (en) * | 2001-12-28 | 2003-07-17 | Mitsubishi Pencil Kabushiki Kaisha | Ink follow-up material for water-base ball pen |
| JP2004136511A (en) * | 2002-10-16 | 2004-05-13 | Pilot Ink Co Ltd | Oily writing utensil |
| JP2005028831A (en) * | 2003-07-11 | 2005-02-03 | Pilot Ink Co Ltd | Writing utensil |
-
2004
- 2004-06-21 JP JP2004182140A patent/JP4519537B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS432342Y1 (en) * | 1965-10-30 | 1968-01-31 | ||
| JP2003145986A (en) * | 2001-11-09 | 2003-05-21 | Mitsubishi Pencil Co Ltd | Ink following element for aqueous ball-point pen |
| WO2003057507A1 (en) * | 2001-12-28 | 2003-07-17 | Mitsubishi Pencil Kabushiki Kaisha | Ink follow-up material for water-base ball pen |
| JP2004136511A (en) * | 2002-10-16 | 2004-05-13 | Pilot Ink Co Ltd | Oily writing utensil |
| JP2005028831A (en) * | 2003-07-11 | 2005-02-03 | Pilot Ink Co Ltd | Writing utensil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007106062A (en) * | 2005-10-17 | 2007-04-26 | Mitsubishi Pencil Co Ltd | Ink follower for oily coating material applicator |
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| JP4519537B2 (en) | 2010-08-04 |
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