JPS641408B2 - - Google Patents
Info
- Publication number
- JPS641408B2 JPS641408B2 JP55146268A JP14626880A JPS641408B2 JP S641408 B2 JPS641408 B2 JP S641408B2 JP 55146268 A JP55146268 A JP 55146268A JP 14626880 A JP14626880 A JP 14626880A JP S641408 B2 JPS641408 B2 JP S641408B2
- Authority
- JP
- Japan
- Prior art keywords
- talc
- water
- paper
- fine
- coating
- 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
Links
- 239000000454 talc Substances 0.000 claims description 49
- 229910052623 talc Inorganic materials 0.000 claims description 49
- 238000000576 coating method Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000000945 filler Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Paper (AREA)
Description
【発明の詳細な説明】
本発明は、本来疎水性のタルク中のうち水中に
おいて浮遊してしまう粒径のタルクを親水化した
親水性微細タルクに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to hydrophilic fine talc in which talc, which is originally hydrophobic, has a particle size that floats in water and is made hydrophilic.
一般に、タルク〔Mg3（Si4O10）（OH）2〕はも
ともと疎水性の粉体であるため、多くの産業分野
において水に懸濁して使うことは極めて少ない。
しかしながら製紙分野においては、
(i) 紙の不透明度を増すとともに紙質を緻密且つ
柔軟にするため、
(ii) 紙の表面を平滑にして光沢を増し外観を美麗
にするため、
そして
(iii) 印刷適性を良くするため、
填料及び塗工用塗料の成分にタルクを使用してい
る。 Generally, talc [Mg 3 (Si 4 O 10 ) (OH) 2 ] is originally a hydrophobic powder, so it is extremely rare to use it suspended in water in many industrial fields.
However, in the paper manufacturing field, (i) to increase the opacity of paper and make it dense and flexible, (ii) to make the surface of paper smooth and glossy, and to make it look beautiful, and (iii) for printing. To improve suitability, talc is used as a filler and as a component of the coating material.
通例、紙は、パルプの叩解工程→抄造工程→乾
燥工程→塗工工程を経て製造される。即ち、パル
プの繊維をほぐすための叩解工程を経た後、サイ
ズ剤、定着剤とともにタルクを含んでなる填料が
加えられ、それぞれの料剤を水溶液中に分散させ
た後抄造し、その後に乾燥して紙がつくられる。
そして、更に、紙の白色度を上げるとともにこれ
に不透明性を与えるための塗工工程において、タ
ルクをその一成分として含有するスリラー状の水
性塗料を紙の表面に塗布している。 Usually, paper is manufactured through a pulp beating process, a papermaking process, a drying process, and a coating process. That is, after going through a beating process to loosen the fibers of the pulp, a filler containing talc is added along with a sizing agent and a fixing agent, each ingredient is dispersed in an aqueous solution, then paper-formed, and then dried. paper is made.
Furthermore, in a coating process to increase the whiteness of the paper and give it opacity, a thriller-like water-based paint containing talc as one of its components is applied to the surface of the paper.
このように填料及び塗料として使用されるタル
クは、その粒子が微細になればなる程、叙上の効
果を発揮し、特に白色度、不透明度、印刷適性が
良くなることが確認されている。一方、タルクの
粒度が細かくなり平均粒径10μ以下になると水溶
液への混入は極めて困難となり、水面に浮いて撹
拌しても水中に分散せず、このため製紙現場にお
いては微細タルクをそのまま使用することが極め
て困難であつた。 It has been confirmed that the finer the particles of talc used as a filler and paint, the more effective it is, particularly in terms of whiteness, opacity, and printability. On the other hand, when the particle size of talc becomes fine and the average particle size is less than 10μ, it becomes extremely difficult to mix it into an aqueous solution.It floats on the water surface and does not disperse in the water even when stirred.For this reason, fine talc is used as is in paper manufacturing sites. This was extremely difficult.
このため、従来パルプの填料としてタルク、特
に、微細タルクを使用する場合、タルクにアルコ
ールを混ぜてペースト状にして水に投入すると
か、あるいは界面活性剤を２％タルクに混合して
使用する方法がとられていた。しかしながら、前
者の場合にあつては、アルコールが低級アルコー
ルである場合、タルクと低級アルコールとは簡単
に混合するが、重量比においてタルクの50％以上
の多量のアルコールを必要とし経済的ではなかつ
たし、引火の恐れもあり、更に、アルコールの揮
発性のため予めタルクを処理しておくことは出来
なかつた。又、高級アルコールを使用した場合、
引火及び揮発の心配はなくなるものの、水へのな
じみが悪いという欠点を有していた。又、後者の
場合、即ち、界面活性剤を使用する場合、タルク
は水になじむようになるが撹拌していると泡立ち
がひどくなり、この泡が抄造に悪影響を及ぼす。
従つて、従来においては、製紙において白色度、
不透明度、印刷適性の点で優れた効果を発揮する
微細タルクを十分に活用できない状態にあつた。 For this reason, when using talc, especially fine talc, as a filler for pulp, conventional methods include mixing talc with alcohol to form a paste and adding it to water, or mixing a surfactant with 2% talc. was taken. However, in the former case, if the alcohol is a lower alcohol, the talc and the lower alcohol can be easily mixed, but it requires a large amount of alcohol, which is more than 50% of the talc by weight, which is not economical. However, there was a risk of ignition, and furthermore, it was not possible to treat the talc in advance due to the volatility of alcohol. Also, if higher alcohol is used,
Although there was no need to worry about ignition or volatilization, it had the disadvantage of poor compatibility with water. In the latter case, that is, when a surfactant is used, the talc becomes compatible with water, but foaming becomes severe during stirring, and this foaming adversely affects paper-making.
Therefore, in the past, whiteness, whiteness,
Fine talc, which exhibits excellent effects in terms of opacity and printability, could not be fully utilized.
本発明は叙上のような現状に鑑みてなされたも
のであつて、製紙において白色度、不透明度、印
刷適性等の点で優れた効果を発揮する微細タルク
を活用することに関し鋭意研究を重ねた結果、微
細タルクをポリアルキレングリコールの薄膜で被
膜することにより微細タルクが親水化することを
見出し本発明を完成するに至つた。 The present invention was made in view of the current situation as described above, and has been made through intensive research into the use of fine talc, which exhibits excellent effects in terms of whiteness, opacity, printability, etc. in paper manufacturing. As a result, they discovered that fine talc can be made hydrophilic by coating it with a thin film of polyalkylene glycol, leading to the completion of the present invention.
即ち、本発明は平均粒径10μ以下のタルク100
重量部あたりポリアルキレングリコール0.1〜１
重量部の割合で添加し、前記タルク粒子表面にコ
ーテイングを施してなる親水性微細タルクを提供
するものである。 That is, the present invention uses talc with an average particle size of 10μ or less.
Polyalkylene glycol 0.1 to 1 part by weight
The present invention provides hydrophilic fine talc which is added in the proportion of parts by weight and coated on the surface of the talc particles.
従つて、本発明の目的は、タルク表面にポリア
ルキレングリコールをコーテイングすることによ
り、極めて容易にタルクを水中に混入分散させて
紙の填料及び塗工用塗料の成分として微細タルク
の使用を可能にし、白色度、不透明度、印刷適性
の点で優れた効果を発揮する親水性微細タルクを
提供することにある。 Therefore, the object of the present invention is to coat the surface of talc with polyalkylene glycol, thereby making it possible to mix and disperse talc into water very easily, thereby making it possible to use fine talc as a filler for paper and as a component of coating materials. The object of the present invention is to provide a hydrophilic fine talc that exhibits excellent effects in terms of whiteness, opacity, and printability.
本発明の他の目的は、粉塵の舞い立ちが極めて
少なく、経済的にも安価であり、引火の恐れもな
い親水性微細タルクを提供することにある。 Another object of the present invention is to provide a hydrophilic fine talc that generates very little dust, is economically inexpensive, and has no risk of catching fire.
本発明のその余の目的及び利点は以下の記述に
より明らかとなるであろう。 Further objects and advantages of the invention will become apparent from the following description.
本発明の親水性微細タルクは粉砕機で10μ程度
に粉砕されたタルクをミキサー（例えば、リボン
ミキサー、ナウタミキサー、Ｖ型ミキサー、ヘン
シエルミキサー等）中に投入し、その中にポリア
ルキレングリコールをスプレーしてコーテイング
するか、又、ジエツト オー マイザーでタルク
を粉砕する時、直接その中にポリアルキレングリ
コールをスプレーしてコーテイングするだけで親
水性微細タルクが得られる。ここにいうポリアル
キレングリコールの中には少なくともデイ、トリ
のものを含む高分子量のグリコールをいい、アル
キレンとしては、エチレン、プロピレンが好まし
い。 The hydrophilic fine talc of the present invention is produced by pulverizing talc into a size of about 10 μm using a pulverizer into a mixer (e.g., ribbon mixer, Nauta mixer, V-type mixer, Henschel mixer, etc.), and adding polyalkylene glycol into the mixer. Hydrophilic fine talc can be obtained by coating by spraying, or by simply spraying polyalkylene glycol directly into the pulverized talc using a jet oomizer and coating it. The polyalkylene glycol referred to herein refers to high molecular weight glycols including at least di- and tri-glycols, and the alkylene is preferably ethylene or propylene.
以上の如く本発明は簡単な構成からなり、本来
疎水性であり、且つ浮遊する微細タルクを水中に
混入分散させて紙の填料、塗工用塗料の一成分と
して微細タルクの使用を可能にし、紙の白色度、
印刷適性、不透明性の点で優れた効果を発揮す
る。そして、ポリアルキレングリコールは高分子
でタルク表面にコーテイングしても揮散すること
がなく、且つ水に極めて溶けやすいため、コーテ
イングした微細タルクは水と混じれば直ちに水中
に分散する。又、微細タルクは取扱い時に粉塵が
たつが、本発明のようにグリコールでコーテイン
グ処理してあるので粉塵の舞い立ちは極めて少な
いという特徴を有している。更に、コーテイング
処理したものはコーテイング処理が施されていな
い微細タルクの価格に比べ１割程度のコスト高に
しかならない。 As described above, the present invention has a simple configuration, and allows fine talc, which is hydrophobic in nature and is floating, to be mixed and dispersed in water, thereby making it possible to use fine talc as a filler for paper or as a component of coating paint. paper whiteness,
Demonstrates excellent printability and opacity. Since polyalkylene glycol is a polymer and does not volatilize even when coated on the surface of talc and is extremely soluble in water, the coated fine talc immediately disperses in water when mixed with water. Further, fine talc generates dust when handled, but since it is coated with glycol as in the present invention, it has the characteristic that very little dust is generated. Furthermore, the cost of coated talc is only about 10% higher than that of fine talc without coating.
次に、本発明を実施例に基づいて説明する。 Next, the present invention will be explained based on examples.
実施例 １
タルクをジエツト オー マイザーで粉砕して
平均粒径2μのものを製造する際、同粉砕機中に
ポリエチレングリコールをタルク100重量部当り
0.3重量部の割合になる様にスプレーして親水性
微細タルクを作つた。この親水性微細タルク３Kg
を300rpmの撹拌機で撹拌している10の水中に
投入すると３分以内で水中に良く分散した。一
方、コーテイングを施していない2μの無処理タ
ルクは表面に浮んで水中には分散しなかつた。Example 1 When pulverizing talc with a jet oomizer to produce particles with an average particle size of 2 μm, polyethylene glycol was added per 100 parts by weight of talc in the pulverizer.
Hydrophilic fine talc was prepared by spraying at a ratio of 0.3 parts by weight. This hydrophilic fine talc 3Kg
When it was put into water that was being stirred with a stirrer at 300 rpm, it was well dispersed within 3 minutes. On the other hand, untreated talc with a thickness of 2μ without any coating floated on the surface and did not disperse in the water.
実施例 ２
実施例１と同様な処理をして作つた平均粒径
5μの親水性微細タルクを灰分率15％、歩留70％
になる様計算してパルプ及びサイズ剤と水中で混
合したところ、極めて短時間で、この微細タルク
は水中に分散し、この液より抄造した紙は、白色
度の高い、不透明度93％の良質の紙が得られた。Example 2 Average particle size produced by the same treatment as Example 1
5μ hydrophilic fine talc with ash content of 15% and yield of 70%
When mixed with pulp and sizing agent in water, the fine talc was dispersed in water in an extremely short time, and the paper made from this liquid was of high quality with high whiteness and opacity of 93%. paper was obtained.
Claims (1)
ポリアルキレングリコール0.1〜１重量部の割合
で添加し、前記タルク粒子表面にコーテイングを
施してなる親水性微細タルク。1. Hydrophilic fine talc obtained by adding polyalkylene glycol at a ratio of 0.1 to 1 part by weight per 100 parts by weight of talc having an average particle size of 10 μm or less, and coating the surface of the talc particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55146268A JPS5771814A (en) | 1980-10-21 | 1980-10-21 | Hydrophilic fine powder of talc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55146268A JPS5771814A (en) | 1980-10-21 | 1980-10-21 | Hydrophilic fine powder of talc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5771814A JPS5771814A (en) | 1982-05-04 |
| JPS641408B2 true JPS641408B2 (en) | 1989-01-11 |
Family
ID=15403889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55146268A Granted JPS5771814A (en) | 1980-10-21 | 1980-10-21 | Hydrophilic fine powder of talc |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771814A (en) |
-
1980
- 1980-10-21 JP JP55146268A patent/JPS5771814A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5771814A (en) | 1982-05-04 |
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