JPS5863424A - Manufacture of foaming decorative laminated sheet - Google Patents

Manufacture of foaming decorative laminated sheet

Info

Publication number
JPS5863424A
JPS5863424A JP56162045A JP16204581A JPS5863424A JP S5863424 A JPS5863424 A JP S5863424A JP 56162045 A JP56162045 A JP 56162045A JP 16204581 A JP16204581 A JP 16204581A JP S5863424 A JPS5863424 A JP S5863424A
Authority
JP
Japan
Prior art keywords
foaming
sheet
heating
ink
synthetic resin
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.)
Pending
Application number
JP56162045A
Other languages
Japanese (ja)
Inventor
Taiji Ishii
泰司 石井
Takashi Matano
剛史 俣野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP56162045A priority Critical patent/JPS5863424A/en
Publication of JPS5863424A publication Critical patent/JPS5863424A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/722—Decorative or ornamental articles

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To obtain a titled sheet which provides embosses, matching with a patterned design, and a surface gloss, by a method wherein, after a foaming polyvinyl chloride sol is applied to a substrate and is half-gelled by heating, a design is patterned, and clear hardening synthetic resin is coated thereon and foamed by heating. CONSTITUTION:After a foaming polyvinyl chloride sol is coated on a substrate sheet 1, for example, papers, unwoven or woven cloth, by a knife coat or other systems, it is half-gelled by heating. A pattern is drawn by a printing system, such as photogravure, offset, letterpress by the use of ink 3a, containing a foaming retarder, i.e., anhydride maleic acid, and usual ink or by the use of only ink 3b containing a foaming promotor, i.e., caprylic acid zinc. clear hardening synthetic resin 5, i.e., urethane series resin, is further coated thereon, and lastly, the work is foamed by heating to form an objective sheet.

Description

【発明の詳細な説明】 本発明は、発泡シートの製造法に関し、更に詳し曵は基
体シートに発泡性塩化ビニルゾルを塗布し・加熱半ゲル
化させた後、発泡抑制剤若しくは促進剤を含んだインキ
さらに通常のインキを用いて各絵柄を設け、次に透明性
のある硬化タイプの合成樹脂を塗布し、最終的に加熱光
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a foamed sheet, and more specifically, the method includes applying a foamable vinyl chloride sol to a base sheet, heating it to semi-gel, and then adding a foaming suppressor or accelerator. Each pattern is created using ink and regular ink, then a transparent hardening type synthetic resin is applied, and finally heating light is applied.

実際のタイルは艶があると同時に表面は平滑となってい
る。例えば、発泡シートを用いてタイルを表現する方法
は、゛まず発泡性塩化ビニルゾルな基体シート上に塗布
加熱半ゲル化させ、その表面に発泡抑制剤を倉んだイン
キを月いて絵柄な設け、その上から透明塩化ビニルシー
ト若し曵は透明アクリルシートな熱融着させ、その後発
泡することによって、絵柄と同調した凹凸と同時に透明
塩化ビニルシートを完全溶融させて艶を付与している。Actual tiles are glossy and at the same time have a smooth surface. For example, the method of expressing tiles using a foam sheet is as follows: ``First, it is coated on a foamable vinyl chloride sol base sheet and heated to semi-gel, and then an ink containing a foam inhibitor is applied to the surface to create a pattern. A transparent vinyl chloride sheet or a transparent acrylic sheet is heat-sealed onto the sheet, and then foamed to completely melt the transparent vinyl chloride sheet and give it a glossy texture while simultaneously creating irregularities that match the pattern.

しかしながら該方法によれば絵柄と同調した凹凸と同時
に艶を得る事が出来るが、凸部表面が発泡の際に粗雑と
なる為実際のタイルとは視覚的に異なる様を呈する結果
となり、又、表面のべとり（感じから逃れることは出来
ない。However, according to this method, it is possible to obtain gloss at the same time as unevenness that is in sync with the pattern, but the surface of the protrusions becomes rough during foaming, resulting in a result that visually differs from the actual tile. The surface is sticky (you can't escape the feeling).

本発明は、上述したような欠点を解消し、絵柄と同調し
たエンボスと同時に艶があり、表面が平滑な状態となっ
ている発泡シートを簡便に製造する方法を提供すること
を目的とする。すなわち本発明の方法は、発泡性原反を
用いて実際のタイルと同様の艶及び質感をもった゛もの
を表現する為のものであり、′Ｆ記の工程を含むことを
特徴とするものである。An object of the present invention is to eliminate the above-mentioned drawbacks and provide a method for easily manufacturing a foam sheet that is embossed in harmony with a pattern and has a glossy and smooth surface. That is, the method of the present invention is for expressing something with the same luster and texture as an actual tile using a foamable raw fabric, and is characterized by including the steps described in 'F. be.

（イ）発泡性塩化ビニルゾルな基体シートに塗布し加熱
半ゲル化させる工程、 （ロ）上記半ゲル化シートの表面に発泡抑制剤若し曵は
発泡促進剤を會んだインキ、さらに必要に応じて通常の
インキを用いて絵柄部分を設ける工程、 ｅ］絵柄を設けた半ゲル化シートの表面に透明性を有す
る硬化タイプの合成樹脂を塗布する工程、 に）上記絵柄を設けた半ゲル化シートを発泡させる工程
。(b) A step of coating a foamable vinyl chloride sol base sheet and heating it to semi-gel, (b) an ink containing a foaming suppressor or a foaming accelerator on the surface of the semi-gelling sheet; e) Applying a transparent hardening type synthetic resin to the surface of the semi-gelled sheet with the pattern provided thereon; d) The semi-gel sheet with the above pattern provided thereon; The process of foaming the chemical sheet.

以Ｆ本発明を図面を参照しつつその基本的な態様につい
て更に詳しく説明する。Hereinafter, basic aspects of the present invention will be explained in more detail with reference to the drawings.

第１図は、本発明で用いる印刷原板の模式断面図である
。＠１図において、発泡性塩化ビニルゾル２は基体シー
ト１上にナイフコート等の方式により塗布後、加熱率、
ゲル化されている。FIG. 1 is a schematic cross-sectional view of a printing original plate used in the present invention. In Figure @1, the expandable vinyl chloride sol 2 is coated on the base sheet 1 by a method such as knife coating, and then the heating rate,
It is gelled.

発泡性塩化ビニルゾルは、塩化ビニル樹脂１００部（以
下の「部」は「重量部」を表わす）にベンゼンスフオニ
ルヒドラジドなどのヒドラジド系、アゾジカルボンア【
ドなどのアゾ系、ジニトロソヘンタテトラミンなどのニ
トロソ系あるいは炭酸水素ナトリウムなどの無機発泡剤
などの発着剤α５〜１０部を加え、更に直鎖又１１分岐
鎖状アルコールと脂肪酸とのエステル等からなる可ｍ剤
３０〜８０部、亜鉛、鍮等の重金属の無機ならびに有機
酸塩等からなる安定剤又は発泡助剤１〜５部その他充填
剤ｌＯ〜５０部、顔料５〜３０ｇ等を加えてペースト状
としたものである。Expandable vinyl chloride sol is made by adding a hydrazide such as benzenesphonyl hydrazide, azodicarbonate [
Add 5 to 10 parts of a binder such as an azo type such as hydrogen chloride, a nitroso type such as dinitrosohentatetramine, or an inorganic blowing agent such as sodium bicarbonate, and further add 5 to 10 parts of a binder such as an ester of a linear or 11-branched alcohol and a fatty acid. 30 to 80 parts of a polymerizing agent, 1 to 5 parts of a stabilizer or foaming aid consisting of inorganic and organic acid salts of heavy metals such as zinc and brass, 10 to 50 parts of other fillers, and 5 to 30 g of a pigment. It is made into a paste form.

べ また基体シートとしては、紙、アス呻スト紙など抄紙さ
ｎた紙；あるいは、ナイロン、レーヨン、ぼりエステル
、ガラスなどの繊維の織布および不織布；あるいはぼり
エステル、ダリカーボネートなどの耐熱性を有するプラ
スティックシートなどが使用される。As the base sheet, paper, paper-made paper such as ABS paper; woven fabrics and non-woven fabrics of fibers such as nylon, rayon, ester ester, and glass; Plastic sheets and the like are used.

９２図（ａ）は、半ゲル化シート上に、発泡抑制剤を含
んだインキ３ａと通常インキ４を用いて絵柄を設けた場
合の、第２図（切は、半ゲル化シート上に発泡促進剤を
含んだインキｓｂを用いて絵柄を設けた場合の模式断面
図である。Figure 92(a) shows a pattern created on a semi-gelled sheet using ink 3a containing a foaming inhibitor and normal ink 4. It is a schematic cross-sectional view when a pattern is provided using ink SB containing an accelerator.

発泡抑制剤としては、マレイン酸、フマル酸、アジピン
酸、１．２−７タル酸のような盲側り特に少な畷とも２
個のカルボキシル基及び１個の水酸基を含み炭素数が２
〜１２個の盲側１炭素数２〜２０の有ａｍハライド、特
に酸塩化物：炭素数２〜２０の有機酸無水物：２個の實
能基な有する炭素数が２〜２０の多価芳昏族アルコール
及びケトン：炭素数３〜１２の飽和アミン又は非飽和の
６〜１０員環アミン等から発泡性塩化ビニルゾルに用い
た発泡剤、５１泡助剤、安定剤との組合せにより発泡温
度を上昇する効果を有するものを選択し、インキ１００
部に対してＳＡ＋ＳＯ部の開会で使用する。Foam suppressants include maleic acid, fumaric acid, adipic acid, and 1.2-7 talic acid, especially in small amounts.
Contains 2 carboxyl groups and 1 hydroxyl group, and has 2 carbon atoms.
~12 blind side 1 am halide having 2 to 20 carbon atoms, especially acid chloride: organic acid anhydride having 2 to 20 carbon atoms: polyvalent having 2 to 20 carbon atoms having 2 functional groups Aromatic alcohol and ketone: From saturated amines having 3 to 12 carbon atoms or unsaturated 6 to 10-membered ring amines, etc., the foaming temperature can be adjusted by combining with foaming agents, foaming aids, and stabilizers used in foamable vinyl chloride sol. Select an ink that has the effect of increasing
Used at the opening of the SA+SO division.

５１泡促進剤としては、５１泡性塩化ビニルゾル中の安
定剤又は発泡助剤と同種のもので、たとえばカプリル酸
亜鉛、硝酸亜鉛、酸化亜鉛等の亜鉛化金物：炭酸鉛、フ
タル酸鉛、Ｉｔ硫酸鉛。51 Foam accelerators are the same as the stabilizers or foaming aids in the 51 foamable vinyl chloride sol, such as zinc caprylate, zinc nitrate, zinc oxide, etc.; lead carbonate, lead phthalate, It Lead sulfate.

オクチル酸鉛、ステアリン酸鉛等の鉛化合物；カプリル
酸カドミウム、ラウリン酸カドミウム等のカドミウム化
合物；その他尿素、硼砂、エタノールアミン等から発泡
性塩化ビニルゾル中の発泡剤の分解温度を低下させるも
のが用いられる。Lead compounds such as lead octylate and lead stearate; cadmium compounds such as cadmium caprylate and cadmium laurate; other substances such as urea, borax, and ethanolamine that lower the decomposition temperature of the blowing agent in the foamable vinyl chloride sol are used. It will be done.

印刷方式としては、通従のグラビア、オフセット、凸版
はもちろんシルクスクリーン方式あるいは描−でもさし
つかえない。As for printing methods, not only conventional gravure, offset, and letterpress printing methods, but also silk screen printing and drawing methods are suitable.

第３図（−及び伽）は、絵柄を設けた上に透明性のある
硬化タイプの合成樹脂６を設けたものである。In FIG. 3 (- and 载), a transparent hardening type synthetic resin 6 is provided on top of a pattern.

硬化タイプの合成樹脂としては、ポリオールとイソシア
ナートとの反応を利用したウレタン系の樹脂又はウレタ
ン系の樹脂とアミノアルキッド樹脂とを混合したものを
用いる。本発明において硬化タイプの合成樹脂を用いる
のは、次の加熱発泡工程において発泡凸部が粗面となり
マット状となるのを防止し、発泡凸部の平滑性を維持す
ると共に半ゲル化状態の塩化ビニル樹脂を溶融させまた
可塑剤のブリージング等の効果によって発泡凸部を発泡
前以上にグロス状箇とする為であるまた、好まし鳴は、
発泡の際の合成樹脂表面の延伸によるひび割れを避ける
為。As the curing type synthetic resin, a urethane resin that utilizes the reaction between a polyol and an isocyanate, or a mixture of a urethane resin and an aminoalkyd resin is used. The reason why a hardening type synthetic resin is used in the present invention is to prevent the foamed protrusions from becoming rough and mat-like in the next heating and foaming process, maintain the smoothness of the foamed protrusions, and maintain a semi-gelled state. This is because the vinyl chloride resin is melted and the foaming convex portions are made more gross than before foaming by the effect of breathing of the plasticizer.
To avoid cracking due to stretching of the synthetic resin surface during foaming.

柔軟性のある合成樹脂な翔い、公知のグラビアコート、
ロールコート等により塗布する。Flexible synthetic resin fly, known gravure coat,
Apply by roll coating, etc.

第４図（１１１＆（ｂ）は最終発泡工程を経た。絵柄と
同一した凹部７を有する本発明の方法により得られる発
泡シートを示す。発泡は熱＾炉、遠赤外線ヒーター等に
より行ない、発泡性燻化ビニルゾルの組成によっても具
なるがｚ　ｏ　ｏｔｌｆｆ後の高温で加熱することによ
り行なわれる。Figure 4 (111&(b)) shows a foamed sheet obtained by the method of the present invention which has gone through the final foaming process and has concave portions 7 identical to the pattern.The foaming is performed using a heat oven, far infrared heater, etc. Although it depends on the composition of the fumed vinyl sol, it is carried out by heating at a high temperature after z o tlff.

以上は本発明における発泡化粧シートの基本的な製造法
の説明であり、本発明の目的とするところは、絵柄と同
一したエンボス′と同時に艶及びｌＩ！面が平滑の状態
となっている発泡シートの製造法の提示である。核目的
を達する為に透明性を有し、かつ、柔軟性良好なる硬化
タイプの合成樹脂を表向に施している点が本発明の特徴
とするところである。The above is an explanation of the basic manufacturing method of the foamed decorative sheet according to the present invention, and the purpose of the present invention is to embossing the same pattern as the pattern while simultaneously improving gloss and lI! This is a presentation of a method for manufacturing a foam sheet with a smooth surface. In order to achieve the core purpose, the present invention is characterized in that a hardening type synthetic resin having transparency and good flexibility is applied to the surface.

次に実施例を用いて本発明を異体的に説明する。Next, the present invention will be explained in a different manner using examples.

実施例１ Ｒｏｌｌ／１１１の裏打ち難燃紙（岩野製紙社製）に下
記配合よりなる発泡性塩化ビニルゾルなナイフコーティ
ング法によって塗布（コーテイング量２５０　ｐ　／ぜ
）し、１６０℃で２分加熱し半ゲル化させた。Example 1 Roll/111 lined flame retardant paper (manufactured by Iwano Paper Co., Ltd.) was coated with an expandable vinyl chloride sol having the following composition by a knife coating method (coating amount: 250 p/z), heated at 160°C for 2 minutes, and then heated for half an hour. gelatinized.

（５１泡性塩化ビニルゾル配合） 塩化ビニル樹１１ｉ　　　　　　　ｔ　ｏ　ｏ部ジオク
チルフタレー）　　　　　４０部リン酸トリクレジル　
　　　　　ＩＩＳ部酸部属化亜鉛　　　　　　　　　４
部 炭酸カルシウム　　　　　　　３０部 二酸化チタン　　　　　　　　１０部 アゾジカルボンアミド　　　　　５部 しかる後、該塩化ビニル樹脂層の表面に発泡抑制剤とし
て無水マレイン酸を１５ｆｓ含んだ塩酢ビ−アクリル樹
脂系の印刷インキ（Ｈ星インキ社製ＸＢＯ）でタイルの
目地部をグラビア印刷機の＠ｌユニットでそれ以外の部
分な塩酢ビ−アクリル樹脂系の通常の印刷インキ（諸態
インキ社製ＯＭＶ）を用いて第２、第３ユニツトで印刷
し１次の第４ユニツトでウレタン系の樹脂（諸態インキ
社製０１１ＣＭ）をグラビアコート（塗布量２１１／ぜ
）した。次に該印刷物を２ｏ。(51 foamable vinyl chloride sol formulation) Vinyl chloride tree 11i too parts dioctyl phthalate) 40 parts tricresyl phosphate
IIS Department Acid Department Zinc 4
Part Calcium Carbonate 30 Parts Titanium Dioxide 10 Parts Azodicarbonamide 5 Parts Thereafter, a salt-acetate vinyl-acrylic resin printing ink (H Star Ink) containing 15 fs of maleic anhydride as a foaming inhibitor was applied to the surface of the vinyl chloride resin layer. The joints of the tiles were printed using the @l unit of a gravure printing machine using a regular salt-acetate-vinyl-acrylic resin based printing ink (OMV, manufactured by Shoyo Ink Co., Ltd.). Three units were used for printing, and a urethane resin (011CM manufactured by Shoshyo Ink Co., Ltd.) was gravure coated (coating amount: 211/cm) using the first and fourth units. Next, the printed matter was washed 2o.

℃で１分半加熱発泡させたところ、１１！面に艶があり
、タイルと同様の質感をも、つた発泡化粧シートを得た
。When heated and foamed at ℃ for 1.5 minutes, the result was 11! A decorative foam sheet with a glossy surface and a texture similar to that of tiles was obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図〜第４図は、本発明の方法の各工程を例示する模
式断面図である。 １・・・・・・嗜・・・・基体シート ２・・−・・・・・・・発泡性塩化ビニルゾル３ａ・・
・・・・・・・発泡抑制剤を含んだインキ３ｂ・・・・
：・・・・発泡促進剤を含んだインキ４・・・・・・・
・・・・通常インキ ５・・・・・・・・・・・硬化タイプの合成樹脂履才　
１　図 １ 才　２　　Ｆ！？（Ｑ） オ８図（α） 牙４図（０） 才２図１ｂｌ 牙８図１ｂ１ 才　４　図＋ｂ）1 to 4 are schematic cross-sectional views illustrating each step of the method of the present invention. 1...Base sheet 2...Expansible vinyl chloride sol 3a...
...Ink 3b containing foaming suppressant...
：・・Ink containing foaming accelerator 4・・・・・・・
・・・・・・Normal ink 5・・・・・・・・・Curing type synthetic resin
1 Figure 1 2 F! ? (Q) O 8 figure (α) Fang 4 figure (0) Sai 2 figure 1 bl Fang 8 figure 1 b1 Sai 4 figure + b)

Claims (2)

【特許請求の範囲】[Claims] （１）下記の各工程を有することを特徴とする同調光 エンボス模様と同時に艶Ｘを付与した光風化粧シートの
製造法。 （イ）発泡性塩化ビニルゾルな基体シートに塗布し、加
熱半ゲル化させる工程、 （ロ）上記半ゲル化シートの表面に発泡抑制剤若し畷は
発泡促進剤を含んだインキ、さらに必要に応じて通常の
インキを用いて絵柄部分を設ける工程、 （ハ）絵柄を設けた半ゲル化シートの表面に透明性を有
する硬化タイプの合成樹脂を塗布する工程、 に）上記絵柄を設けた半ゲル化シートを発泡させる工程
。(1) A method for producing a decorative sheet with a synchronized light embossing pattern and a gloss X, which is characterized by comprising the following steps. (b) Applying an ink containing a foaming suppressor or a foaming accelerator to the surface of the semi-gelling sheet by applying it to a foamable vinyl chloride sol base sheet and heating it to semi-gel. (c) A process of applying a transparent hardening type synthetic resin to the surface of the semi-gelled sheet with the pattern provided thereon; The process of foaming the gel sheet. （２）工程（ハ）において用いる透明性を有する硬化タ
　１− イブの合成樹脂がウレタン系の樹脂である特許請求の範
囲第１項の製造法。(2) The manufacturing method according to claim 1, wherein the synthetic resin of the transparent cured tab used in step (c) is a urethane resin.
JP56162045A 1981-10-13 1981-10-13 Manufacture of foaming decorative laminated sheet Pending JPS5863424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56162045A JPS5863424A (en) 1981-10-13 1981-10-13 Manufacture of foaming decorative laminated sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56162045A JPS5863424A (en) 1981-10-13 1981-10-13 Manufacture of foaming decorative laminated sheet

Publications (1)

Publication Number Publication Date
JPS5863424A true JPS5863424A (en) 1983-04-15

Family

ID=15747036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56162045A Pending JPS5863424A (en) 1981-10-13 1981-10-13 Manufacture of foaming decorative laminated sheet

Country Status (1)

Country Link
JP (1) JPS5863424A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485552B2 (en) * 2000-02-29 2002-11-26 Asahi Kogaku Kogyo Kabushiki Kaisha Ink composition for thermal ink jet printer or thermal ink permeation printer
US6586364B2 (en) 1999-12-08 2003-07-01 Pentax Corporation Heat-sensitive microcapsule and recording medium using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6586364B2 (en) 1999-12-08 2003-07-01 Pentax Corporation Heat-sensitive microcapsule and recording medium using same
US6485552B2 (en) * 2000-02-29 2002-11-26 Asahi Kogaku Kogyo Kabushiki Kaisha Ink composition for thermal ink jet printer or thermal ink permeation printer

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