JPH0352506B2 - - Google Patents
Info
- Publication number
- JPH0352506B2 JPH0352506B2 JP57208803A JP20880382A JPH0352506B2 JP H0352506 B2 JPH0352506 B2 JP H0352506B2 JP 57208803 A JP57208803 A JP 57208803A JP 20880382 A JP20880382 A JP 20880382A JP H0352506 B2 JPH0352506 B2 JP H0352506B2
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- porous sintered
- heat treatment
- ink
- metal compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims description 18
- 150000002736 metal compounds Chemical class 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000004040 coloring Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 10
- 229910052582 BN Inorganic materials 0.000 description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000546 pharmaceutical excipient Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000021317 sensory perception Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
【発明の詳細な説明】
本発明は多孔質焼結体にインキ含浸して色鉛筆
芯を製造する方法の改良に関し、折損強度の向上
を目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for manufacturing colored pencil leads by impregnating a porous sintered body with ink, and its purpose is to improve breakage strength.
押出成形後の熱処理として単に乾燥もしくは固
化してなる所謂生芯タイプのものより、焼成もし
くは焼結（以下、単に焼結という）温度まで熱処
理してなる所謂焼結タイプのものの方が折損強度
の優れた鉛筆芯になることに鑑み、色鉛筆芯にお
いても近年焼結タイプのものが種々検討されてい
るが、いまだに十分な強度を有する製品が得られ
るには到つていない。 The so-called sintered type, which is heat treated to a firing or sintering (hereinafter simply referred to as sintering) temperature, has better breakage strength than the so-called raw core type, which is simply dried or solidified as a heat treatment after extrusion molding. In recent years, various sintered colored pencil leads have been studied in view of their ability to produce excellent pencil leads, but a product with sufficient strength has not yet been obtained.
単に折損強度を向上するだけならば、結合材の
使用割合を多くしたり、熱処理の温度を高くする
だけでも可能であるが、書き味を悪くしてしまう
欠点などの方が強くなつてしまうからである。 If you want to simply improve the breakage strength, it is possible to do so by increasing the proportion of binder used or increasing the temperature of heat treatment, but this would make the disadvantages such as poor writing quality stronger. It is.
本発明は上述したところに基づきなされたもの
であり、多孔質焼結体にインキ含浸して色鉛筆芯
を製造する方法において、前記多孔質焼結体の気
孔中に、熱処理により白色もしくは無色あるいは
着色材の一部となる固形の無機金属化合物を生成
する金属含有液を含浸せしめ、熱処理して白色も
しくは無色あるいは着色材の一部となる固形の無
機金属化合物を生成し、その後、インキ含浸する
ことを特徴とする色鉛筆芯の製造方法を要旨とす
るものである。 The present invention has been made based on the above, and includes a method for producing a colored pencil lead by impregnating a porous sintered body with ink, in which the pores of the porous sintered body are made white, colorless, or colored by heat treatment. Impregnation with a metal-containing liquid that produces a solid inorganic metal compound that becomes part of the material, heat treatment to produce a solid inorganic metal compound that becomes white or colorless, or a part of the coloring material, and then impregnated with ink. The gist of this paper is a method for producing colored pencil lead characterized by the following.
基材となる多孔質焼結体は、１種もしくは２種
以上の結合材と必要に応して使用される耐熱性顔
料などの体質材や賦形材とを細線状に押出成形
し、熱処理して得ることができ、粘土と窒化硼素
を少なくとも主成分としたものや、熱処理によつ
て材料の硼素化合物などを窒化物としたものなど
はそのよく知られた一例である。 The porous sintered body that serves as the base material is made by extruding one or more types of binder and, if necessary, heat-resistant pigments and other extensible materials and excipients into a fine wire shape, and then heat-treated. Well-known examples include those whose main components are at least clay and boron nitride, and those in which a material such as a boron compound is converted into nitride through heat treatment.
また、インキについても経時的に安定なもの、
例えば、乾燥しないものが好ましいだけでボール
ペン用インキ、スタンプ用インキなど種々使用で
きる。 In addition, the ink must be stable over time,
For example, a variety of inks such as ballpoint pen ink and stamp ink can be used, as long as they do not dry.
白色もしくは無色あるいは着色材の一部となる
固形の無機金属化合物（以下、単に金属化合物と
いう）とは筆記したときの発色を損わない金属化
合物で、例えば、黄色のインキと青色の金属化合
物で緑色がかつた発色にすることなどもできる
が、発色はインキによつてのみなした方が好まし
く、この観点では前述多孔質焼結体もこの金属化
合物も視覚上白色となるものがよい。 A solid inorganic metal compound that is white, colorless, or part of a coloring material (hereinafter simply referred to as a metal compound) is a metal compound that does not impair the color development when written.For example, a combination of yellow ink and blue metal compound Although it is possible to develop a color with a greenish tint, it is preferable that the color development is performed solely by ink, and from this point of view, it is preferable that both the porous sintered body and the metal compound are visually white.
金属化合物は熱処理によつて生成されるもので
ある。即ち、１度もしくは複数回繰り返して行わ
れる金属含有液の含浸、並びに熱処理において、
熱処理雰囲気によつて酸化、窒化、炭酸化などさ
れたり、加熱そのものによつて還元、脱水反応な
どされたりして生成される。 Metal compounds are produced by heat treatment. That is, in impregnation with a metal-containing liquid and heat treatment that is performed once or repeatedly,
It is produced through oxidation, nitridation, carbonation, etc. depending on the heat treatment atmosphere, or through reduction, dehydration reactions, etc. due to the heating itself.
金属化合物を生成するもととなる金属含有液と
しては、例えば、珪素、アルミニウム、亜鉛、マ
グネシウム、チタン、カルシウム、硼素など各種
金属の１種もしくは２種以上適宜形態で含む液で
あるが、多孔質焼結体の焼結組成に同一もしくは
近似する金属化合物を生成するものが好ましく、
例えば粘土を結合材として使用して得た多孔質焼
結体に対しては、熱処理後、二酸化珪素を生成す
る珪素を含むものが好ましい。 The metal-containing liquid that is the source of the metal compound is, for example, a liquid containing one or more of various metals such as silicon, aluminum, zinc, magnesium, titanium, calcium, and boron in an appropriate form. It is preferable to produce a metal compound that is the same as or similar to the sintered composition of the quality sintered body.
For example, for a porous sintered body obtained using clay as a binding material, it is preferable that the porous sintered body contains silicon that produces silicon dioxide after heat treatment.
また、金属化合物を生成するための熱処理は、
多孔質焼結体そのものに悪影響を及ぼさない（例
えば、多孔質焼結体に窒化硼素が使用されている
場合、あまり高温で熱処理すると、窒化硼素が構
造破壊をおこすことがある）範囲でなるべく高温
まで処理するのが一般に良い結果を得ることがで
き、更に、処理の最初の方の段階では、液媒の急
激な除去に伴う多孔質焼結体の気孔からの含浸漏
れを生じないよう、昇温速度を小さくしたり、一
定時間低温維持したりするのが好ましい。 In addition, heat treatment to produce metal compounds is
As high a temperature as possible within a range that does not adversely affect the porous sintered body itself (for example, if boron nitride is used in the porous sintered body, heat treatment at too high a temperature may cause structural destruction of the boron nitride). In general, good results can be obtained by processing up to It is preferable to reduce the heating rate or maintain the temperature at a low temperature for a certain period of time.
以下、実施例により説明する。 Examples will be explained below.
実施例 １
(A) 多孔質焼結体の準備
ベントナイト30重量部、窒化硼素40重量部、
ポリメタクリル酸メチル（賦形材）10重量部、
ジオクチルフタレート（可塑剤）10重量部、メ
チルエチルケトン（溶剤）100重量部を十分混
練し、調整した粘度で細線状に押出成形後、
950℃までの焼結処理をして0.5mm径の多孔質焼
結体を得た。Example 1 (A) Preparation of porous sintered body 30 parts by weight of bentonite, 40 parts by weight of boron nitride,
Polymethyl methacrylate (excipient) 10 parts by weight,
After thoroughly kneading 10 parts by weight of dioctyl phthalate (plasticizer) and 100 parts by weight of methyl ethyl ketone (solvent) and extruding it into a fine wire shape with the adjusted viscosity,
A porous sintered body with a diameter of 0.5 mm was obtained by sintering at a temperature of 950°C.
(B) 金属含有液の含浸と熱処理
(A)で準備した多孔質焼結体に、混合エチルポ
リ珪酸塩の30％エタノール溶液を15Torrの減
圧下で30分間含浸した後、酸化雰囲気中で50℃
５時間維持後、750℃まで８時間かけて定速昇
温熱処理し、多孔質焼結体の気孔中に二酸化珪
素を生成せしめた。(B) Impregnation with metal-containing liquid and heat treatment The porous sintered body prepared in (A) was impregnated with a 30% ethanol solution of mixed ethyl polysilicate for 30 minutes under a reduced pressure of 15 Torr, and then heated at 50°C in an oxidizing atmosphere.
After maintaining the temperature for 5 hours, constant rate heating heat treatment was performed to 750° C. over 8 hours to generate silicon dioxide in the pores of the porous sintered body.
実施例 ２
実施例１の(A)で準備した多孔質焼結体に、酢酸
亜鉛の30％水溶液を実施例１同様に含浸した後、
酸化雰囲気中で70℃５時間維持後、800℃まで７
時間かけて定速昇温熱処理し、多孔質焼結体の気
孔中に酸化亜鉛を生成せしめた。Example 2 After impregnating the porous sintered body prepared in (A) of Example 1 with a 30% aqueous solution of zinc acetate in the same manner as in Example 1,
After being maintained at 70℃ for 5 hours in an oxidizing atmosphere, the temperature was increased to 800℃ for 7 hours.
Heat treatment was performed at a constant rate over time to generate zinc oxide in the pores of the porous sintered body.
実施例１、２で得たものと、比較のために実施
例１の(A)で得た多孔質焼結体そのものとに、それ
ぞれボールペン用の赤色インキを含浸して特性試
験した結果、筆跡の発色性、並びに、書き味に関
しては官能によつていずれも差を見出せず、また
折損強度に関しては、JIS S6019に準じて測定し
た結果、前述の順に、それぞれ、16700ｇ／mm2、
15300ｇ／mm2、14000ｇ／mm2という値を得た。 As a result of impregnating the porous sintered body obtained in Examples 1 and 2 and the porous sintered body itself obtained in Example 1 (A) for comparison with red ink for a ballpoint pen, and testing the characteristics, it was found that the handwriting was Regarding color development and writing feel, no difference was found depending on sensory perception, and as for breakage strength, as a result of measurement according to JIS S6019, in the above order, 16,700 g/mm 2, 16,700 g/mm 2 ,
Values of 15,300 g/mm 2 and 14,000 g/mm 2 were obtained.
以上述べたように、本発明によると他の特性を
実質的に損うことなく、折損強度の優れた色鉛筆
芯を得ることができる。 As described above, according to the present invention, a colored pencil lead with excellent breakage strength can be obtained without substantially impairing other properties.
Claims (1)
造する方法において、前記多孔質焼結体の気孔中
に、熱処理により白色もしくは無色あるいは着色
材の一部となる固形の無機金属化合物を生成する
金属含有液を含浸せしめ、熱処理して白色もしく
は無色あるいは着色材の一部となる固形の無機金
属化合物を生成し、その後、インキ含浸すること
を特徴とする色鉛筆芯の製造方法。1. In a method for manufacturing colored pencil leads by impregnating a porous sintered body with ink, a solid inorganic metal compound that is white or colorless or becomes a part of the coloring material is produced in the pores of the porous sintered body by heat treatment. A method for producing a colored pencil lead, which comprises impregnating the lead with a metal-containing liquid, heat-treating it to produce a solid inorganic metal compound that becomes white or colorless, or forming a part of the coloring material, and then impregnating it with ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20880382A JPS5998176A (en) | 1982-11-29 | 1982-11-29 | Manufacture of core of colored pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20880382A JPS5998176A (en) | 1982-11-29 | 1982-11-29 | Manufacture of core of colored pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5998176A JPS5998176A (en) | 1984-06-06 |
| JPH0352506B2 true JPH0352506B2 (en) | 1991-08-12 |
Family
ID=16562374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20880382A Granted JPS5998176A (en) | 1982-11-29 | 1982-11-29 | Manufacture of core of colored pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5998176A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123667A (en) * | 1984-07-12 | 1986-02-01 | Pilot Precision Co Ltd | Colored pencil lead and production thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5035860A (en) * | 1973-06-21 | 1975-04-04 | ||
| JPS5064029A (en) * | 1973-10-05 | 1975-05-30 | ||
| JPS5529554A (en) * | 1978-08-22 | 1980-03-01 | Sakura Color Prod Corp | Preparation of pencil lead |
-
1982
- 1982-11-29 JP JP20880382A patent/JPS5998176A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5035860A (en) * | 1973-06-21 | 1975-04-04 | ||
| JPS5064029A (en) * | 1973-10-05 | 1975-05-30 | ||
| JPS5529554A (en) * | 1978-08-22 | 1980-03-01 | Sakura Color Prod Corp | Preparation of pencil lead |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5998176A (en) | 1984-06-06 |
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